183 results on '"Kyoichi Takaori"'
Search Results
52. Management of the pancreatic transection plane after left (distal) pancreatectomy: Expert consensus guidelines by the International Study Group of Pancreatic Surgery (ISGPS)
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Yi Miao, Zipeng Lu, Charles J. Yeo, Charles M. Vollmer, Carlos Fernandez-del Castillo, Paula Ghaneh, Christopher M. Halloran, Jörg Kleeff, Thijs de Rooij, Jens Werner, Massimo Falconi, Helmut Friess, Herbert J. Zeh, Jakob R. Izbicki, Jin He, Johanna Laukkarinen, Cees H. Dejong, Keith D. Lillemoe, Kevin Conlon, Kyoichi Takaori, Luca Gianotti, Marc G. Besselink, Marco Del Chiaro, Marco Montorsi, Masao Tanaka, Maximilian Bockhorn, Mustapha Adham, Attila Oláh, Roberto Salvia, Shailesh V. Shrikhande, Thilo Hackert, Tooru Shimosegawa, Amer H. Zureikat, Güralp O. Ceyhan, Yunpeng Peng, Guangfu Wang, Xumin Huang, Christos Dervenis, Claudio Bassi, John P. Neoptolemos, Markus W. Büchler, Anesthesiology, Surgery, AGEM - Digestive immunity, AGEM - Re-generation and cancer of the digestive system, Miao, Y, Lu, Z, Yeo, C, Vollmer, C, Fernandez-del Castillo, C, Ghaneh, P, Halloran, C, Kleeff, J, de Rooij, T, Werner, J, Falconi, M, Friess, H, Zeh, H, Izbicki, J, He, J, Laukkarinen, J, Dejong, C, Lillemoe, K, Conlon, K, Takaori, K, Gianotti, L, Besselink, M, Del Chiaro, M, Montorsi, M, Tanaka, M, Bockhorn, M, Adham, M, Olah, A, Salvia, R, Shrikhande, S, Hackert, T, Shimosegawa, T, Zureikat, A, Ceyhan, G, Peng, Y, Wang, G, Huang, X, Dervenis, C, Bassi, C, Neoptolemos, J, Buchler, M, RS: NUTRIM - R2 - Liver and digestive health, and MUMC+: MA Heelkunde (9)
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medicine.medical_specialty ,REMNANT CLOSURE ,medicine.medical_treatment ,fistula formation ,030230 surgery ,Anastomosis ,Pancreatic surgery ,law.invention ,03 medical and health sciences ,Pancreatic Fistula ,0302 clinical medicine ,Pancreatectomy ,Postoperative Complications ,Randomized controlled trial ,law ,medicine ,Humans ,Pancreas ,business.industry ,Expert consensus ,POLYGLYCOLIC ACID FELT ,stump closure ,STAPLE LINE REINFORCEMENT ,RANDOMIZED CONTROLLED-TRIAL ,medicine.disease ,soft coagulation ,Surgery ,hand-sewn closure ,medicine.anatomical_structure ,Pancreatic fistula ,030220 oncology & carcinogenesis ,RISK-FACTORS ,business ,Distal pancreatectomy ,TO-MUCOSA PANCREATICOGASTROSTOMY - Abstract
Background: The aim was to evaluate the various operative techniques and outcomes used to manage the pancreatic transection plane (or stump) during a left (distal) pancreatectomy and to develop expert consensus guidelines.Methods: Evidence-based, clinically relevant questions were discussed and then were circulated among members of the International Study Group of Pancreatic Surgery. After agreement on the questions and statements, voting in a 9-point Likert scale was used to gauge the level of objective support for each.Results: Studies using the International Study Group of Pancreatic Surgery definition of postoperative pancreatic fistula including 16 randomized trials were reviewed to generate a series of statements set into 14 domains. There was strong consensus in the following statements: there was no difference in the postoperative pancreatic fistula rate after left pancreatectomy between the handsewn and stapler techniques; a stapling technique could not be used in all cases of left pancreatectomy; the use of an energy-based tissue sealant or a chemical sealant device or combinations of these did not impact the postoperative pancreatic fistula rate; there was no difference in the postoperative pancreatic fistula rate between the open, laparoscopic, or robotic approaches; and there are 1 or more clinically important, patient-related risk factors associated with the postoperative pancreatic fistula rate. There was weak or conditional agreement on the use of prophylactic somatostatin analogs, stents, stump closure, stump anastomosis, and the role of abdominal drains.Conclusion: Areas of strong consensus suggests a change in clinical practice and priority setting. Eight domains with lower agreement will require novel approaches and large multicenter studies to determine future key areas of practice. (C) 2020 Elsevier Inc. All rights reserved.
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- 2019
53. Usefulness of
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Asahi, Sato, Toshihiko, Masui, Akitada, Yogo, Yuichiro, Uchida, Kenzo, Nakano, Takayuki, Anazawa, Kazuyuki, Nagai, Kyoichi, Takaori, Yuji, Nakamoto, and Shinji, Uemoto
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Adult ,Aged, 80 and over ,Male ,Adolescent ,Middle Aged ,Pancreatic Neoplasms ,Neuroendocrine Tumors ,Fluorodeoxyglucose F18 ,Predictive Value of Tests ,Positron Emission Tomography Computed Tomography ,Humans ,Female ,Neoplasm Grading ,Neoplasm Recurrence, Local ,Radiopharmaceuticals ,Aged ,Retrospective Studies - Abstract
AlthoughWe retrospectively compared demographics and pathological features betweenSeventy-two patients were enrolled.The avidity of
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- 2019
54. Enhancing support for optimal muscle usage in sports
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Hiroshi Nakashima, Kyoichi Takaori, Osamu Saisho, Hiroshi Imamura, and Shingo Tsukada
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medicine.diagnostic_test ,biology ,business.industry ,Computer science ,Process (engineering) ,Athletes ,education ,010401 analytical chemistry ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,020207 software engineering ,02 engineering and technology ,Electromyography ,biology.organism_classification ,01 natural sciences ,Coaching ,Motion (physics) ,0104 chemical sciences ,Visualization ,Skills training ,Human–computer interaction ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,Tracking (education) ,business - Abstract
Cardiopulmonary function and power as well as efficient motion skill are extremely important for athletes. Thanks to the latest sensing technology and smart devices, many researchers have focused on sports-skill analysis. Electromyography (EMG), in particular, is gaining attention as a method of understanding the power-generating process in motions. However, most existing applications using EMG have remained being one-time measurement. This is because athletes do not know how to use the results and how to measure their improvement. We propose a sports-skill-training framework with muscle-usage indicators based on EMG and an EMG live visualization system. With this framework, athletes can determine the skill they need to improve by focusing on skills whose indicators are poor, activate their muscles with live feedback to overcome weaknesses, and quantitatively measure their improvement as the improvement of the indicators during the activation training. We also verified the effect of coaching in this framework on cycling athletes. The experimental results quantitatively indicate the effectiveness of continuous skill training with our framework.
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- 2019
55. International consensus statement on robotic pancreatic surgery
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Kehu Yang, Ho-Seong Han, Marco Vito Marino, Kyoichi Takaori, Tiankang Guo, Chenghong Peng, Yi-Ming Shyr, Jae Hoon Lee, Rong Liu, Chinnusamy Palanivelu, Charing C N Chong, Yupei Zhao, Yuman Fong, Jin He, Chang Moo Kang, Brian K. P. Goh, Allan Tsung, Shen-Nien Wang, Yao-Ming Wu, Hong-Jin Kim, Eli Kakiashvili, Yuichi Nagakawa, Ting-Shuo Huang, Go Wakabayashi, Yiengpruksawan Anusak, and Thilo Hackert
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Statement (computer science) ,medicine.medical_specialty ,business.industry ,Certification ,Review Article ,law.invention ,Pancreatic surgery ,Editorial ,Randomized controlled trial ,law ,Medicine ,Robotic surgery ,Medical physics ,Guideline development ,business ,Consensus development ,computer ,Delphi ,health care economics and organizations ,computer.programming_language - Abstract
The robotic surgical system has been applied to various types of pancreatic surgery. However, controversies exist regarding a variety of factors including the safety, feasibility, efficacy, and cost-effectiveness of robotic surgery. This study aimed to evaluate the current status of robotic pancreatic surgery and put forth experts' consensus and recommendations to promote its development. Based on the WHO Handbook for Guideline Development, a Consensus Steering Group* and a Consensus Development Group were established to determine the topics, prepare evidence-based documents, and generate recommendations. The GRADE Grid method and Delphi vote were used to formulate the recommendations. A total of 19 topics were analyzed. The first 16 recommendations were generated by GRADE using an evidence-based method (EBM) and focused on the safety, feasibility, indication, techniques, certification of the robotic surgeon, and cost-effectiveness of robotic pancreatic surgery. The remaining three recommendations were based on literature review and expert panel opinion due to insufficient EBM results. Since the current amount of evidence was low/meager as evaluated by the GRADE method, further randomized controlled trials (RCTs) are needed in the future to validate these recommendations.
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- 2019
56. Combination of postoperative C-reactive protein value and computed tomography imaging can predict severe pancreatic fistula after pancreatoduodenectomy
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Toshihiko Masui, Kyoichi Takaori, Kazuyuki Nagai, Yuichiro Uchida, Tomoaki Yoh, Kenzo Nakano, Akitada Yogo, Takayuki Anazawa, and Shinji Uemoto
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Adult ,Male ,medicine.medical_specialty ,Computed tomography ,030230 surgery ,Severity of Illness Index ,Pancreaticoduodenectomy ,03 medical and health sciences ,Pancreatic Fistula ,Young Adult ,0302 clinical medicine ,Postoperative Complications ,Predictive Value of Tests ,Risk Factors ,Medicine ,Humans ,Aged ,Retrospective Studies ,Aged, 80 and over ,Hepatology ,biology ,medicine.diagnostic_test ,business.industry ,C-reactive protein ,Gastroenterology ,Perioperative ,Middle Aged ,medicine.disease ,C-Reactive Protein ,ROC Curve ,Pancreatic fistula ,030220 oncology & carcinogenesis ,Amylases ,biology.protein ,Drainage ,Female ,Radiology ,business ,Tomography, X-Ray Computed - Abstract
Recent management after pancreatoduodenectomy recommends either omission of prophylactic drainage or early removal. This potentially makes the diagnosis of postoperative pancreatic fistula (POPF) difficult because the diagnosis is based on the amylase value of drain effluent. The aim of this study was to determine if severe POPF could be predicted independent of drainage information.Records of consecutive patients who underwent pancreatoduodenectomy between 2012 and 2018 were included for further analysis. The presence of a peripancreatic collection (PC) on routine postoperative (day7) computed tomography (early CT) and perioperative characteristics were analyzed.PC appeared in 82/211 patients (39%) and was associated with clinically relevant POPF (p 0.001). The C-reactive protein (CRP) on postoperative day5 was a good predictor of severe POPF (needing interventional therapy or Grade C) (area under the receiver operating characteristics curve, 0.802; 95% confidence interval, 0.702-0.875). Presence of a PC and a high CRP value were independent risk factors for severe POPF following multivariate analysis. The combination of CRP5.0 mg/dL on postoperative day 5 and the absence of a PC had 98% negative predictive value.The combination of CRP measurement and PC evaluation by early CT was useful in predicting severe POPF after pancreatoduodenectomy.
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- 2019
57. Predictive value of the Ki67 index for lymph node metastasis of small non-functioning pancreatic neuroendocrine neoplasms
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Kazuyuki Nagai, Kenzo Nakano, Akitada Yogo, Yuichiro Uchida, Toshihiko Masui, Asahi Sato, Takayuki Anazawa, Yoshiya Kawaguchi, Shinji Uemoto, and Kyoichi Takaori
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Adult ,Male ,medicine.medical_specialty ,medicine.medical_treatment ,Lymph node metastasis ,Metastasis ,Surgical oncology ,Mesenteric Artery, Superior ,Predictive Value of Tests ,medicine.artery ,medicine ,Biomarkers, Tumor ,Humans ,Superior mesenteric artery ,Aged ,Aged, 80 and over ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Primary tumor ,Pancreatic Neoplasms ,Dissection ,Neuroendocrine Tumors ,Ki-67 Antigen ,Lymphatic Metastasis ,Ki67 index ,Lymph Node Excision ,Surgery ,Lymphadenectomy ,Female ,Radiology ,business ,Tomography, X-Ray Computed - Abstract
We evaluated the clinicopathological factors associated with lymph node metastasis in patients with non-functioning pancreatic neuroendocrine neoplasms (PanNENs), focusing on the risk factors and range of lymph node metastasis for tumors ≤ 2 cm in diameter. The subjects of this study were patients with PanNENs consecutively diagnosed at our hospital between January, 2000 and June, 2018. We analyzed 69 patients who underwent R0 resection of a non-functioning sporadic PanNEN with no distant metastasis, as well as 43 patients with tumors ≤ 20 mm in radiological diameter. Nineteen patients (27.5%), including 7 (16.3%) with a small PanNEN, had lymph node metastasis. A large radiological diameter, a high Ki67 index, and cyst formation correlated significantly with positive lymph node metastasis. In patients with tumors ≤ 20 mm in diameter, a high Ki67 index correlated significantly with lymph node metastasis. When we set the cut-off Ki67 index as 3.3%, 2 of 43 patients had lymph node metastasis. Tumors in the uncinate process readily metastasized to the region around the superior mesenteric artery. These findings suggest that a high Ki67 index indicates a risk of lymph node metastasis for tumors ≤ 20 mm in diameter and that lymphadenectomy should be performed in the region spatially adjacent to the primary tumor.
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- 2018
58. Concurrent gemcitabine+S-1 neoadjuvant chemotherapy contributes to the improved survival of patients with small borderline-resectable pancreatic cancer tumors
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Shinji Uemoto, Toshihiko Masui, Kyoichi Takaori, Takayuki Anazawa, Asahi Sato, Tatsuo Ito, Kenzo Nakano, Ryuichiro Doi, and Yoshiya Kawaguchi
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Adult ,Male ,Oncology ,medicine.medical_specialty ,Surgical margin ,medicine.medical_treatment ,030230 surgery ,Deoxycytidine ,Metastasis ,03 medical and health sciences ,0302 clinical medicine ,Pancreatic cancer ,Internal medicine ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Humans ,Stage (cooking) ,Aged ,Neoplasm Staging ,Tegafur ,Aged, 80 and over ,Chemotherapy ,business.industry ,General Medicine ,Middle Aged ,medicine.disease ,Combined Modality Therapy ,Gemcitabine ,Neoadjuvant Therapy ,Pancreatic Neoplasms ,Survival Rate ,Drug Combinations ,Oxonic Acid ,Treatment Outcome ,Chemotherapy, Adjuvant ,Tumor progression ,030220 oncology & carcinogenesis ,Pancreatectomy ,Female ,Surgery ,business ,medicine.drug - Abstract
In the surgical treatment of pancreatic cancer, margin-negative status is one of the most important determinants of survival. We conducted this study to explore surgical margin status as well as other factors affecting the survival of borderline-resectable pancreatic cancer (BRPC) patients who received neoadjuvant chemotherapy with gemcitabine and S-1. Eighteen BRPC patients were prospectively treated with concurrent gemcitabine and S-1 neoadjuvant chemotherapy (NAC+) and 15 of these patients underwent resection. We evaluated the safety and efficacy of this treatment regimen by comparing the outcomes of these patients with those of 19 BRPC patients who did not receive neoadjuvant chemotherapy (NAC−) during the same period. Fifteen (83 %) of the NAC+ patients underwent pancreatectomy. The remaining three patients (17 %) had regional tumor progression or liver metastasis. Of the 15 NAC+ patients who underwent resection, 3 (20 %) had margin-positive status, whereas 9 of the 19 (43 %) NAC− patients had margin-positive status (p = 0.002). However, disease-free survival and overall survival were similar in the two groups (MST 21.7 vs. 21.1 months). NAC+ patients with tumors smaller than 30 mm had favorable overall survival (MST 43.9 vs. 23.1 months, p = 0.0321). Most recurrences developed at distant sites rather than locally in both groups. In the neoadjuvant setting, gemcitabine and S-1 improved the negative surgical margin rate in BRPC patients, but it did not improve survival. Thus, neoadjuvant chemotherapy should be given to BRPC patients at an earlier stage.
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- 2016
59. Artery-First Distal Pancreatectomy
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Kyoichi Takaori and Shinji Uemoto
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medicine.medical_specialty ,medicine.medical_treatment ,Dissection (medical) ,030230 surgery ,Splenic artery ,03 medical and health sciences ,Pancreatectomy ,0302 clinical medicine ,Celiac artery ,medicine.artery ,Pancreatic cancer ,medicine ,Humans ,Laparoscopy ,Ligation ,medicine.diagnostic_test ,business.industry ,Dissection ,Gastroenterology ,medicine.disease ,Surgery ,Pancreatic Neoplasms ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Pancreas ,business ,Splenic Artery ,Artery - Abstract
Artery-first pancreatectomy is a technique to ligate the feeding artery before the division of the pancreas with intents to reduce the blood loss and to perform more oncologic resection; for example, the splenic artery (SA) is ligated first for artery-first distal pancreatectomy (DP). Potential merits of artery-first DP include early determination of resectability in the setting of pancreatic cancer with possible involvement of SA and/or celiac artery. However, due to difficulties in exposing the origin of SA, especially in open surgery, artery-first DP has been rarely performed. Through the experience of laparoscopic DP, we have developed a technique of artery-first DP by the ‘Tora-no-Ana' approach, which consists of posterior dissection of the pancreatic body thorough a division of the ligament of Treitz. A hanging maneuver of the pancreatic parenchyma with SA and vein is another key for a successful artery-first DP. By the hanging maneuver, the origin of SA is well visualized and clearly identified either by open, laparoscopic or robotic approach so that oncologic resection can be achieved. In conclusion, artery-first DP is safe and feasible if the surgical principals by the Tora-no-Ana approach and hanging maneuver of the pancreatic body are adhered.
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- 2016
60. Pretreatment C-reactive protein level predicts outcome and patterns of failure after chemoradiotherapy for locally advanced pancreatic cancer
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Kyoichi Takaori, Satoshi Itasaka, Masahiro Hiraoka, Shigemi Matsumoto, Yuzo Kodama, Akira Nakamura, Masashi Kanai, Keiko Shibuya, Takahiro Kishi, and Takashi Mizowaki
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Adult ,Male ,medicine.medical_specialty ,Multivariate analysis ,Endocrinology, Diabetes and Metabolism ,Gastroenterology ,Risk Factors ,Internal medicine ,medicine ,Humans ,Stage (cooking) ,Aged ,Aged, 80 and over ,Patterns of failure ,Hepatology ,biology ,business.industry ,Proportional hazards model ,C-reactive protein ,Induction chemotherapy ,Chemoradiotherapy ,Middle Aged ,Surgery ,Locally advanced pancreatic cancer ,Pancreatic Neoplasms ,C-Reactive Protein ,Treatment Outcome ,biology.protein ,Female ,business - Abstract
Objectives In this study we evaluated the predictive value of pretreatment C-reactive protein (CRP) levels on patterns of failure and survival outcomes in patients with locally advanced pancreatic cancer (LAPC) who received chemoradiotherapy (CRT). Methods Data from 65 patients who underwent CRT for LAPC from July 2001 to May 2013 were retrospectively collected. Factors, including age, gender, Eastern Cooperative Oncology Group performance status (PS), histological confirmation, tumor size, tumor location, biliary drainage, stage, induction chemotherapy, CRP levels, neutrophil-to-lymphocyte ratio, platelet-lymphocyte ratio, albumin and carbohydrate antigen 19-9, were evaluated with regard to overall survival (OS) and patterns of failure using a Cox proportional hazards model. Results The 1-year OS and median follow-up for all of the patients were 63.9% and 15.2 months, respectively. The median survival time and 1-year OS were 18.0 months and 72.5%, respectively, in the patients with lower CRP levels (≤3.0 mg/L), whereas 11.0 months and 30.8%, respectively, in the patients with higher CRP levels (>3.0 mg/L). Thirty-seven patients had tumor recurrence after CRT. All of the patients with higher CRP levels developed distant metastases as a primary sign of treatment failure. In a multivariate analysis, higher CRP levels were significantly correlated with distant disease-free survival (p = 0.004, HR = 4.50) and OS (p = 0.004, HR = 3.001). By contrast, local progression-free survival was not significantly different between the CRP subgroups. Conclusion The CRP levels were a significant predictor of survival and distant disease control for the LAPC patients who received CRT.
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- 2015
61. The MEK Inhibitor Trametinib Suppresses Major Histocompatibility Antigen-mismatched Rejection Following Pancreatic Islet Transplantation
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Hideaki Okajima, Toshihiko Masui, Shinji Uemoto, Kazuyuki Nagai, Takayuki Anazawa, Shoichiro Sumi, Seiichiro Tada, Takero Shindo, Nanae Fujimoto, Kei Yamane, Kyoichi Takaori, and Kenta Inoguchi
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Trametinib ,Transplantation ,geography ,geography.geographical_feature_category ,business.industry ,MEK inhibitor ,lcsh:Surgery ,Interleukin ,lcsh:RD1-811 ,030230 surgery ,Pharmacology ,Islet ,Proinflammatory cytokine ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,030211 gastroenterology & hepatology ,Pancreatic islet transplantation ,Tumor necrosis factor alpha ,business ,Pancreas and Islet Transplantation - Abstract
Background. Potential adverse effects, such as functional impairment of islets, render conventional immunosuppressive drugs unsuitable for use in islet transplantation. In addition, as a single therapy, they cannot prolong islet allograft survival. Here, we investigated the utility of the mitogen-activated protein kinase inhibitor trametinib and asked whether it ameliorates acute rejection of transplanted islets without the need for conventional immunosuppressants. Methods. Islets from fully major histocompatibility complex-mismatched BALB/c mice were transplanted into streptozotocin-induced diabetic C57BL/6 mice via the portal vein. These mice received trametinib or vehicle (orally) for 28 days. Isolated islets from BALB/c mice were incubated in vitro with different concentrations of trametinib to determine viability and function. Results. Trametinib (0.1 and 0.3 mg/kg) prolonged graft survival significantly (P = 0.0007 and P = 0.005, respectively) when compared with vehicle. Histologic analyses revealed that cellular infiltration of the graft by lymphocytes was inhibited significantly on day 7 (P
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- 2020
62. SETDB1 Inhibits p53-Mediated Apoptosis and Is Required for Formation of Pancreatic Ductal Adenocarcinomas in Mice
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Yuta Hanyu, Norihiro Goto, Satoshi Ogawa, Yukiko Hiramatsu, Tatsuaki Tsuruyama, Osamu Araki, Yuichi Fukunaga, Mohammed Salah Hussein, Makoto Sono, Shinji Uemoto, Takahisa Maruno, Akihisa Fukuda, Yoshihide Matsumoto, Motoyuki Tsuda, Kyoichi Takaori, Hiroshi Seno, Takaaki Yoshikawa, Munemasa Nagao, Yuki Nakanishi, and Tomonori Masuda
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0301 basic medicine ,Programmed cell death ,endocrine system diseases ,Apoptosis ,medicine.disease_cause ,Proto-Oncogene Proteins p21(ras) ,03 medical and health sciences ,Histone H3 ,0302 clinical medicine ,Cell Line, Tumor ,Pancreatic cancer ,medicine ,Animals ,Humans ,Promoter Regions, Genetic ,Cell Proliferation ,Mice, Knockout ,Gene knockdown ,Binding Sites ,Hepatology ,Microarray analysis techniques ,Chemistry ,Gastroenterology ,Histone-Lysine N-Methyltransferase ,medicine.disease ,digestive system diseases ,Gene Expression Regulation, Neoplastic ,Pancreatic Neoplasms ,Disease Models, Animal ,Cell Transformation, Neoplastic ,030104 developmental biology ,Histone methyltransferase ,Cancer research ,030211 gastroenterology & hepatology ,Tumor Suppressor Protein p53 ,Carcinogenesis ,Chromatin immunoprecipitation ,Carcinoma, Pancreatic Ductal ,Signal Transduction ,Transcription Factors - Abstract
Background & Aims SETDB1, a histone methyltransferase that trimethylates histone H3 on lysine 9, promotes development of several tumor types. We investigated whether SETDB1 contributes to development of pancreatic ductal adenocarcinoma (PDAC). Methods We performed studies with Ptf1aCre; KrasG12D; Setdb1f/f , Ptf1aCre; KrasG12D; Trp53f/+; Setdb1f/f, and Ptf1aCre; KrasG12D; Trp53f/f; Setdb1f/f mice to investigate the effects of disruption of Setdb1 in mice with activated KRAS-induced pancreatic tumorigenesis, with heterozygous or homozygous disruption of Trp53. We performed microarray analyses of whole-pancreas tissues from Ptf1aCre; KrasG12D; Setdb1f/f, and Ptf1aCre; KrasG12D mice and compared their gene expression patterns. Chromatin immunoprecipitation assays were performed using acinar cells isolated from pancreata with and without disruption of Setdb1. We used human PDAC cells for SETDB1 knockdown and inhibitor experiments. Results Loss of SETDB1 from pancreas accelerated formation of premalignant lesions in mice with pancreata that express activated KRAS. Microarray analysis revealed up-regulated expression of genes in the apoptotic pathway and genes regulated by p53 in SETDB1-deficient pancreata. Deletion of Setdb1 from pancreas prevented formation of PDACs, concomitant with increased apoptosis and up-regulated expression of Trp53 in mice heterozygous for disruption of Trp53. In contrast, pancreata of mice with homozygous disruption of Trp53 had no increased apoptosis, and PDACs developed. Chromatin immunoprecipitation revealed that SETDB1 bound to the Trp53 promoter to regulate its expression. Expression of an inactivated form of SETDB1 in human PDAC cells with wild-type TP53 resulted in TP53-induced apoptosis. Conclusions We found that the histone methyltransferase SETDB1 is required for development of PDACs, induced by activated KRAS, in mice. SETDB1 inhibits apoptosis by regulating expression of p53. SETDB1 might be a therapeutic target for PDACs that retain p53 function.
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- 2020
63. Difficulty scoring system in laparoscopic distal pancreatectomy
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Takao Ohtsuka, Daisuke Ban, Yoshiharu Nakamura, Yuichi Nagakawa, Minoru Tanabe, Yoshitaka Gotoh, Vittoria Vanessa D. M. Velasquez, Kohei Nakata, Yatsuka Sahara, Kyoichi Takaori, Goro Honda, Takeyuki Misawa, Manabu Kawai, Hiroki Yamaue, Takanori Morikawa, Tamotsu Kuroki, Yiping Mou, Woo-Jung Lee, Shailesh V. Shrikhande, Chung Ngai Tang, Claudius Conrad, Ho-Seong Han, Chinnusamy Palanivelu, Horacio J. Asbun, David A. Kooby, Go Wakabayashi, Tadahiro Takada, Masakazu Yamamoto, and Masafumi Nakamura
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Surgeons ,03 medical and health sciences ,0302 clinical medicine ,Pancreatectomy ,Hepatology ,Japan ,030220 oncology & carcinogenesis ,Humans ,Pancreatic Diseases ,Surgery ,Laparoscopy ,Clinical Competence ,030230 surgery - Abstract
Several factors affect the level of difficulty of laparoscopic distal pancreatectomy (LDP). The purpose of this study was to develop a difficulty scoring (DS) system to quantify the degree of difficulty in LDP.We collected clinical data for 80 patients who underwent LDP. A 10-level difficulty index was developed and subcategorized into a three-level difficulty index; 1-3 as low, 4-6 as intermediate, and 7-10 as high index. The automatic linear modeling (LINEAR) statistical tool was used to identify factors that significantly increase level of difficulty in LDP.The operator's 10-level DS concordance between the 10-level DS by the reviewers, LINEAR index DS, and clinical index DS systems were analyzed, and the weighted Cohen's kappa statistic were at 0.869, 0.729, and 0.648, respectively, showing good to excellent inter-rater agreement. We identified five factors significantly affecting level of difficulty in LDP; type of operation, resection line, proximity of tumor to major vessel, tumor extension to peripancreatic tissue, and left-sided portal hypertension/splenomegaly.This novel DS for LDP adequately quantified the degree of difficulty, and can be useful for selecting patients for LDP, in conjunction with fitness for surgery and prognosis.
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- 2018
64. Minimally invasive preservation versus splenectomy during distal pancreatectomy: a systematic review and meta-analysis
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Kohei Nakata, Satoru Shikata, Takao Ohtsuka, Tomohiko Ukai, Yoshihiro Miyasaka, Yasuhisa Mori, Vittoria Vanessa D. M. Velasquez, Yoshitaka Gotoh, Daisuke Ban, Yoshiharu Nakamura, Yuichi Nagakawa, Minoru Tanabe, Yatsuka Sahara, Kyoichi Takaori, Goro Honda, Takeyuki Misawa, Manabu Kawai, Hiroki Yamaue, Takanori Morikawa, Tamotsu Kuroki, Yiping Mou, Woo-Jung Lee, Shailesh V. Shrikhande, Chung Ngai Tang, Claudius Conrad, Ho-Seong Han, Palanivelu Chinnusamy, Horacio J. Asbun, David A. Kooby, Go Wakabayashi, Tadahiro Takada, Masakazu Yamamoto, and Masafumi Nakamura
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Hepatology ,030230 surgery ,Pancreatic Neoplasms ,03 medical and health sciences ,0302 clinical medicine ,Pancreatectomy ,Treatment Outcome ,030220 oncology & carcinogenesis ,Splenectomy ,Humans ,Minimally Invasive Surgical Procedures ,Surgery ,Laparoscopy ,Spleen - Abstract
Minimally invasive distal pancreatectomy (MIDP) has gained in popularity recently. However, there is no consensus on whether to preserve the spleen or not. In this study, we compared MIDP outcomes between spleen-preserving distal pancreatectomy (SPDP) and distal pancreatectomy with splenectomy (DPS); as well as outcomes between splenic vessel preservation (SVP) and Warshaw's technique (WT).A systematic search of PubMed (MEDLINE) and Cochrane Library was conducted and the reference lists of review articles were hand-searched.Fifteen relevant studies with 769 patients were selected for meta-analyses of DPS and SPDP, while another 15 studies with 841 patients were used for the analysis between SVP and WT. Compared with the DPS group, SPDP patients had significantly lower incidences of infectious complications (P = 0.006) and pancreatic fistula (P = 0.002), shorter operative time (P 0.001), and less blood loss (P = 0.01). Compared with WT, SVP patients had significantly lower incidences of splenic infarction (P 0.001) and secondary splenectomy (P = 0.003). Subanalysis for laparoscopic surgery alone had similar results.Based on this study, SPDP has significantly superior outcomes compared to DPS. When a spleen is preserved, SVP has better outcomes over WT for reducing splenic complications.
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- 2018
65. The Role of Laparoscopy and Peritoneal Cytology in the Management of Pancreatic Cancer
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Shinji Uemoto and Kyoichi Takaori
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medicine.medical_specialty ,Peritoneal cytology ,medicine.diagnostic_test ,business.industry ,Cytology ,General surgery ,Pancreatic cancer ,medicine ,Peritonitis ,CA19-9 ,medicine.disease ,Laparoscopy ,business - Published
- 2018
66. Pancreaticoduodenectomy with the Superior Mesenteric Artery Approach: How I Do It
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Toshihiko Masui, Takayuki Anazawa, Kyoichi Takaori, and Shinji Uemoto
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medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Nerve plexus ,Dissection (medical) ,medicine.disease ,Pancreaticoduodenectomy ,SMA ,medicine.anatomical_structure ,medicine.artery ,medicine ,Ligament ,Retroperitoneal space ,Superior mesenteric artery ,Radiology ,Pancreas ,business - Abstract
The superior mesenteric artery (SMA) approach to pancreaticoduodenectomy (PD) is considered extremely important for early determination of resectability with negative margins. In addition, transecting the feeding arteries, including the inferior pancreaticoduodenal (IPDA) and gastroduodenal (GDA) arteries, before division of the pancreas can reduce blood loss during surgery and is a reasonable method for performing oncologic resection. This approach has promoted the development of an “artery-first” technique. Several techniques have been described under the heading of “artery-first.” We use the “Tora-no-Ana” approach, which consists of division of the ligament of Treitz, an entry into the retroperitoneal space behind the pancreatic body, and circumferential dissection around the SMA, with preservation of the nerve plexus around the SMA to prevent intractable diarrhea. A hanging maneuver of the pancreatic body facilitates a good operative view through the “Tora-no-Ana” approach. The IPDA and GDA are divided before division of the pancreatic body. In this chapter, we describe our techniques of the “artery-first” approach to PD with a review of the literature.
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- 2018
67. Nutritional support and therapy in pancreatic surgery: A position paper of the International Study Group on Pancreatic Surgery (ISGPS)
- Author
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Luca Gianotti, Marc G. Besselink, Marta Sandini, Thilo Hackert, Kevin Conlon, Arja Gerritsen, Oonagh Griffin, Abe Fingerhut, Pascal Probst, Mohammed Abu Hilal, Giovanni Marchegiani, Gennaro Nappo, Alessandro Zerbi, Antonio Amodio, Julie Perinel, Mustapha Adham, Massimo Raimondo, Horacio J. Asbun, Asahi Sato, Kyoichi Takaori, Shailesh V. Shrikhande, Marco Del Chiaro, Maximilian Bockhorn, Jakob R. Izbicki, Christos Dervenis, Richard M. Charnley, Marc E. Martignoni, Helmut Friess, Nicolò de Pretis, Dejan Radenkovic, Marco Montorsi, Michael G. Sarr, Charles M. Vollmer, Luca Frulloni, Markus W. Büchler, Claudio Bassi, Gianotti, L, Besselink, M, Sandini, M, Hackert, T, Conlon, K, Gerritsen, A, Griffin, O, Fingerhut, A, Probst, P, Hilal, M, Marchegiani, G, Nappo, G, Zerbi, A, Amodio, A, Perinel, J, Adham, M, Raimondo, M, Asbun, H, Sato, A, Takaori, K, Shrikhande, S, Del Chiaro, M, Bockhorn, M, Izbicki, J, Dervenis, C, Charnley, R, Martignoni, M, Friess, H, de Pretis, N, Radenkovic, D, Montorsi, M, Sarr, M, Vollmer, C, Frulloni, L, Buchler, M, Bassi, C, Surgery, AGEM - Re-generation and cancer of the digestive system, and AGEM - Digestive immunity
- Subjects
Evidence-Based Medicine ,Pancreatic Elastase ,Time Factor ,Nutritional Support ,Malnutrition ,pancreatitis ,Consensu ,Perioperative Care ,Pancreaticoduodenectomy ,Nutritional Statu ,Pancreatic Fistula ,Treatment Outcome ,Nutrition ,pancreatic surgery ,Surgery ,Enzyme Replacement Therapy ,Exocrine Pancreatic Insufficiency ,Fece ,Postoperative Complication ,Human - Abstract
Background: The optimal nutritional therapy in the field of pancreatic surgery is still debated. Methods: An international panel of recognized pancreatic surgeons and pancreatologists decided that the topic of nutritional support was of importance in pancreatic surgery. Thus, they reviewed the best contemporary literature and worked to develop a position paper to provide evidence supporting the integration of appropriate nutritional support into the overall management of patients undergoing pancreatic resection. Strength of recommendation and quality of evidence were based on the approach of the grading of recommendations assessment, development and evaluation Working Group. Results: The measurement of nutritional status should be part of routine preoperative assessment because malnutrition is a recognized risk factor for surgery-related complications. In addition to patient's weight loss and body mass index, measurement of sarcopenia and sarcopenic obesity should be considered in the preoperative evaluation because they are strong predictors of poor short-term and long-term outcomes. The available data do not show any definitive nutritional advantages for one specific type of gastrointestinal reconstruction technique after pancreatoduodenectomy over the others. Postoperative early resumption of oral intake is safe and should be encouraged within enhanced recovery protocols, but in the case of severe postoperative complications or poor tolerance of oral food after the operation, supplementary artificial nutrition should be started at once. At present, there is not enough evidence to show the benefit of avoiding oral intake in clinically stable patients who are complicated by a clinically irrelevant postoperative pancreatic fistula (a so-called biochemical leak), while special caution should be given to feeding patients with clinically relevant postoperative pancreatic fistula orally. When an artificial nutritional support is needed, enteral nutrition is preferred whenever possible over parenteral nutrition. After the operation, regardless of the type of pancreatic resection or technique of reconstruction, patients should be monitored carefully to assess for the presence of endocrine and exocrine pancreatic insufficiency. Although fecal elastase-1 is the most readily available clinical test for detection of pancreatic exocrine insufficiency, its sensitivity and specificity are low. Pancreatic enzyme replacement therapy should be initiated routinely after pancreatoduodenectomy and in patients with locally advanced disease and continued for at least 6 months after surgery, because untreated pancreatic exocrine insufficiency may result in severe nutritional derangement. Conclusion: The importance of this position paper is the consensus reached on the topic. Concentrating on nutritional support and therapy is of utmost value in pancreatic surgery for both short- and long-term outcomes.
- Published
- 2018
68. International Summit on Laparoscopic Pancreatic Resection (ISLPR) 'Coimbatore Summit Statements'
- Author
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Marcel Autran C. Machado, K. Menon, Akira Matsushita, S. Srivatsan Gurumurthy, Masafumi Nakamura, David A. Kooby, Ignasi Poves, Anil K. Agarwal, Yuichi Nagakawa, Dong Sup Yoon, Palanisamy Senthilnathan, Stefano Berti, Andrew A. Gumbs, Igor Khatkov, Kyoichi Takaori, Juan Pekolj, Vijay P. Khatri, Yoo Seok Yoon, Kuo Hsin Chen, Hong-Jin Kim, Liu Rong, Shahidur Rahman, Mohammad Abu Hilal, Chinnusamy Palanivelu, Antonio Sa Cunha, Zheng Min-hua, Marc G. Besselink, Go Wakabayashi, Shailesh V. Shrikhande, Tran Cong Duy Long, Goro Honda, Ho-Seong Han, Jiang Tao Li, AGEM - Digestive immunity, CCA - Cancer Treatment and Quality of Life, AGEM - Re-generation and cancer of the digestive system, Surgery, and CCA - Cancer Treatment and quality of life
- Subjects
medicine.medical_specialty ,Standardization ,MEDLINE ,Computer-assisted web interviewing ,03 medical and health sciences ,0302 clinical medicine ,Pancreatectomy ,Robotic Surgical Procedures ,Pàncrees -- Cirurgia ,Medicine ,Humans ,Minimally Invasive Surgical Procedures ,Pancreatic resection ,geography ,Summit ,geography.geographical_feature_category ,business.industry ,General surgery ,International Agencies ,Congresses as Topic ,Pancreatic Neoplasms ,Oncology ,Case selection ,030220 oncology & carcinogenesis ,Practice Guidelines as Topic ,030211 gastroenterology & hepatology ,Surgery ,Laparoscopy ,business - Abstract
The International Summit on Laparoscopic Pancreatic Resection (ISLPR) was held in Coimbatore, India, on 7th and 8th of October 2016 and thirty international experts who regularly perform laparoscopic pancreatic resections participated in ISPLR from four continents, i.e., South and North America, Europe and Asia. Prior to ISLPR, the first conversation among the experts was made online on August 26th, 2016 and the structures of ISPLR were developed. The aims of ISPLR were; i) to identify indications and optimal case selection criteria for minimally invasive pancreatic resection (MIPR) in the setting of both benign and malignant diseases; ii) standardization of techniques to increase the safety of MIPR; iii) identification of common problems faced during MIPR and developing associated management strategies; iv) development of clinical protocols to allow early identification of complications and develop the accompanying management plan to minimize morbidity and mortality. As a process for interactive discussion, the experts were requested to complete an online questionnaire consisting of 65 questions about the various technical aspects of laparoscopic pancreatic resections. Two further web-based meetings were conducted prior to ISPLR. Through further discussion during ISPLR, we have created productive statements regarding the topics of Disease, Implementation, Patients, Techniques, and Instrumentations (DIPTI) and hereby publish them as “Coimbatore Summit Statements”.
- Published
- 2017
69. A Prospective Study of Intensity-modified Radiation Therapy in Comparison with Conventional 3D-RT for BR Pancreatic Cancer Patients with Arterial Involvement
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Kenzo Nakano, Toshihiko Masui, Keiko Shibuya, Yuichiro Uchida, Hiroyoshi Isoda, Satoshi Itasaka, Asahi Sato, Kyoichi Takaori, Takayuki Anazawa, Masashi Kanai, Shinji Uemoto, Yoko Goto, Masaki Mizumoto, Shigemi Matsumoto, Akitada Yogo, Yuzo Kodama, and Yoshiya Kawaguchi
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Male ,Cancer Research ,medicine.medical_treatment ,03 medical and health sciences ,0302 clinical medicine ,Pancreatic cancer ,Adjuvant therapy ,Humans ,Medicine ,Prospective Studies ,Prospective cohort study ,Pancreas ,Neoadjuvant therapy ,Aged ,business.industry ,Cumulative dose ,Therapeutic effect ,Arteries ,Chemoradiotherapy ,General Medicine ,Middle Aged ,medicine.disease ,Survival Analysis ,Neoadjuvant Therapy ,Intensity (physics) ,Pancreatic Neoplasms ,Radiation therapy ,Treatment Outcome ,Oncology ,030220 oncology & carcinogenesis ,Female ,Radiotherapy, Intensity-Modulated ,Radiotherapy, Conformal ,business ,Nuclear medicine - Abstract
Background/aim Intensity-modulated radiation therapy (IMRT) is a form of radiation therapy that allows accurate irradiation with reduced damage to surrounding tissues. Here, we analyzed borderline-resectable pancreatic cancer (BRPC) with arterial abutment (BR-A) patients with IMRT as neoadjuvant therapy and performed comparisons with patients with conventional RT to clarify the advantages of IMRT as a neoadjuvant therapy. Patients and methods Thirty BR-A patients treated at our hospital between January 2012 and December 2015 were divided into two groups: 12 patients underwent conventional 3D-RT before resection (RT group); and 18 patients underwent IMRT before resection (IMRT group). We analyzed safety, tumor resection rate, histological classification of the tumor and overall survival. Results The R0 rate was 84% for the IMRT group and 83% for the RT group. Local therapeutic effects as assessed by Evans classification showed a higher local control rate in the IMRT group (Grade: 1, 0%; 2a, 25%; 2b, 41.6%; 3, 17%; 4, 8%) than in the RT group (Grade: 1, 17%; 2a, 50%; 2b, 17%; 3, 17%; 4, 0%). The cumulative dose of S1 treatment as adjuvant therapy was much smaller in the RT group (18.3%) compared to that in the IMRT group (57.1%, p=0.047), and with better subsequent overall survival rate (MST 32 months vs. 13.8 months, p=0.0273). Conclusion The IMRT group showed a better control rate than the RT group. The neoadjuvant IMRT has advantages of higher completion rate of adjuvant chemotherapy with better nutritional status and better subsequent overall survival rate (OS).
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- 2017
70. Screening for Pancreatic Cancer
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Keita Wada, Kyoichi Takaori, and L. William Traverso
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Systemic disease ,medicine.medical_specialty ,Intraductal papillary mucinous neoplasm ,business.industry ,medicine.medical_treatment ,General surgery ,Pancreatic Intraepithelial Neoplasia ,Autopsy ,medicine.disease ,Adenocarcinoma, Mucinous ,Risk Assessment ,Carcinoma, Papillary ,Pancreatic Neoplasms ,Pancreatectomy ,Risk Factors ,Pancreatic cancer ,medicine ,Humans ,Surgery ,CA19-9 ,Stage (cooking) ,business ,Early Detection of Cancer ,Carcinoma, Pancreatic Ductal - Abstract
Neither extended surgery nor extended indication for surgery has improved survival in patients with pancreatic cancer. According to autopsy studies, presumably 90% are metastatic. The only cure is complete removal of the tumor at an early stage before it becomes a systemic disease or becomes invasive. Early detection and screening of individuals at risk is currently under way. This article reviews the evidence and methods for screening, either familial or sporadic. Indication for early-stage surgery and precursors are discussed. Surgeons should be familiar with screening because it may provide patients with a chance for cure by surgical resection.
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- 2015
71. Impact of preoperative quality as well as quantity of skeletal muscle on survival after resection of pancreatic cancer
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Toshihiko Masui, Masaki Mizumoto, Akira Mori, Yuhei Hamaguchi, Shinji Uemoto, Yasuhiro Fujimoto, Kyoichi Takaori, Toshimi Kaido, Ahmed Hammad, and Shinya Okumura
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Adult ,Male ,Sarcopenia ,medicine.medical_specialty ,Adipose tissue ,Risk Assessment ,Gastroenterology ,Disease-Free Survival ,Cohort Studies ,Pancreatectomy ,Japan ,Predictive Value of Tests ,Internal medicine ,Pancreatic cancer ,Preoperative Care ,medicine ,Humans ,Survival analysis ,Abdominal Muscles ,Aged ,Retrospective Studies ,Aged, 80 and over ,Analysis of Variance ,business.industry ,Hazard ratio ,Skeletal muscle ,Retrospective cohort study ,Organ Size ,Middle Aged ,medicine.disease ,Survival Analysis ,Surgery ,Pancreatic Neoplasms ,Treatment Outcome ,medicine.anatomical_structure ,Predictive value of tests ,Female ,Neoplasm Recurrence, Local ,Tomography, X-Ray Computed ,business ,Follow-Up Studies - Abstract
[Background]Skeletal muscle depletion, referred to as sarcopenia, is predictive of mortality in patients undergoing digestive operations. The impact of muscle quality on outcomes, however, is unclear. This retrospective study investigated the impact of preoperative skeletal muscle quantity and quality on survival in patients undergoing resection of pancreatic cancer. [Methods]We investigated 230 patients who underwent resection of pancreatic cancer between 2004 and 2013. The quantity and quality of skeletal muscle, indicated by psoas muscle mass index (PMI) and intramuscular adipose tissue content (IMAC), were measured in preoperative computed tomography images. Overall survival (OS) and recurrence-free survival (RFS) rates were compared according to PMI and IMAC, and prognostic factors after pancreatic resection were assessed.[Results]The OS and RFS rates in patients with low PMI were lesser than in those with normal/high PMI (P < .001, P < .001), with a mean survival time of 17.7 and 33.2 months, respectively. The OS and RFS rates in patients with high IMAC also were less than in those with normal/low IMAC (P < .001, P = .003) (mean survival time = 21.5 and 56.5 months, respectively). Low PMI (low muscle mass) and high IMAC (low muscle quality) were independent prognostic factors of poor OS (hazard ratio [HR] = 1.999, P < .001; HR = 2.527, P < .001) and RFS (HR = 1.607, P = .007; HR = 1.640, P = .004), respectively. [Conclusion]Preoperative sarcopenia, indicating low quality and quantity of skeletal muscle, is closely related to mortality after resection of pancreatic cancer.
- Published
- 2015
72. Nardilysin inhibits pancreatitis and suppresses pancreatic ductal adenocarcinoma initiation in mice
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Shinji Uemoto, Kyoichi Takaori, Norihiro Goto, Tsutomu Chiba, Satoshi Ogawa, Yuto Kimura, Kiyoto Nishi, Yoshito Kimura, Akihisa Fukuda, Motoyuki Tsuda, Yoshihide Matsumoto, Shigeo Takaishi, Eiichiro Nishi, Kenji Masuo, Yukiko Hiramatsu, Takahisa Maruno, Keitaro Kanda, Kozo Ikuta, and Hiroshi Seno
- Subjects
0301 basic medicine ,Cre recombinase ,Context (language use) ,Biology ,medicine.disease_cause ,03 medical and health sciences ,Mice ,0302 clinical medicine ,Pancreatic cancer ,Nardilysin ,medicine ,Animals ,Gastroenterology ,Metalloendopeptidases ,medicine.disease ,Pancreatic Neoplasms ,Disease Models, Animal ,030104 developmental biology ,medicine.anatomical_structure ,Pancreatitis ,Cancer research ,Immunohistochemistry ,030211 gastroenterology & hepatology ,KRAS ,Pancreas ,Carcinoma, Pancreatic Ductal - Abstract
ObjectiveNardilysin (NRDC), a zinc peptidase, exhibits multiple localisation-dependent functions including as an enhancer of ectodomain shedding in the extracellular space and a transcriptional coregulator in the nucleus. In this study, we investigated its functional role in exocrine pancreatic development, homeostasis and the formation of pancreatic ductal adenocarcinoma (PDA).DesignWe analysedPtf1a-Cre; Nrdcflox/floxmice to investigate the impact ofNrdcdeletion. Pancreatic acinar cells were isolated fromNrdcflox/floxmice and infected with adenovirus expressing Cre recombinase to examine the impact ofNrdcinactivation. Global gene expression inNrdc-cKOpancreas was analysed compared with wild-type pancreas by microarray analysis. We also analysedPtf1a-Cre; KrasG12D; Nrdcflox/floxmice to investigate the impact ofNrdcdeletion in the context of oncogenic Kras. A total of 51 human samples of pancreatic intraepithelial lesions (PanIN) and PDA were examined by immunohistochemistry for NRDC.ResultsWe found that pancreatic deletion ofNrdcleads to spontaneous chronic pancreatitis concomitant with acinar-to-ductal conversion, increased apoptosis and atrophic pancreas in mice. Acinar-to-ductal conversion was observed mainly through a non-cell autonomous mechanism, and the expression of several chemokines was significantly increased inNrdc-null pancreatic acinar cells. Furthermore, pancreatic deletion ofNrdcdramatically acceleratedKrasG12D-driven PanIN and subsequent PDA formation in mice. These data demonstrate a previously unappreciated anti-inflammatory and tumour suppressive functions of Nrdc in the pancreas in mice. Finally, absence of NRDC expression was observed in a subset of human PanIN and PDA.ConclusionNrdc inhibits pancreatitis and suppresses PDA initiation in mice.
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- 2017
73. Henoch-Schönlein Purpura After Living Donor Liver Transplantation: Report of the First Case
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Hideaki Okajima, Shintaro Yagi, Vusal Aliyev, Amr Badawy, Ahmed Hammad, Toshimi Kaido, Kyoichi Takaori, Kojiro Taura, and S. Uemoto
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Immunoglobulin A ,Male ,medicine.medical_specialty ,Henoch-Schonlein purpura ,IgA Vasculitis ,medicine.medical_treatment ,Arthritis ,Liver transplantation ,Gastroenterology ,Postoperative Complications ,hemic and lymphatic diseases ,Internal medicine ,medicine ,Living Donors ,Humans ,Transplantation ,biology ,business.industry ,Glomerulonephritis ,Glomerulonephritis, IGA ,Middle Aged ,medicine.disease ,Liver Transplantation ,Purpura ,biology.protein ,Surgery ,medicine.symptom ,business ,Nephritis ,Systemic vasculitis - Abstract
Henoch-Schonlein purpura (HSP) is a systemic vasculitis affecting the small vessels that mainly presents in children and young adults. It is characterized by tissue deposition of immunoglobulin A (IgA) immune complexes with the classic manifestations of purpura, arthritis, arthralgia, and gastrointestinal and renal involvements. We report a case of HSP nephritis that occurred 2 years after living-donor liver transplantation (LDLT). After pulse steroid administration, the patient's symptoms disappeared and blood markers normalized. To the best of our knowledge, this is the first HSP case to be reported in a liver transplant recipient.
- Published
- 2017
74. 'Revisions of the International Consensus Fukuoka Guidelines for the Management of IPMN of the Pancreas': Progress for twelve years
- Author
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Kyoichi Takaori
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medicine.medical_specialty ,Internationality ,Endocrinology, Diabetes and Metabolism ,Consensus Development Conferences as Topic ,MEDLINE ,Gastroenterology ,03 medical and health sciences ,0302 clinical medicine ,Japan ,Internal medicine ,medicine ,Carcinoma ,Humans ,Hepatology ,business.industry ,General surgery ,medicine.disease ,Adenocarcinoma, Mucinous ,Carcinoma, Papillary ,Pancreatic Neoplasms ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Practice Guidelines as Topic ,Adenocarcinoma ,030211 gastroenterology & hepatology ,Pancreas ,business ,Carcinoma, Pancreatic Ductal - Published
- 2017
75. A case of successful conversion from everolimus to surgical resection of a giant pancreatic neuroendocrine tumor
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Toshihiko Masui, Asahi Sato, Yoshiya Kawaguchi, Nao Sankoda, Yuichiro Uchida, Takayuki Anazawa, Kyoichi Takaori, Shinji Uemoto, and Kenzo Nakano
- Subjects
Surgical resection ,medicine.medical_specialty ,Pancreatic neuroendocrine tumor ,medicine.medical_treatment ,lcsh:Surgery ,Case Report ,Neuroendocrine tumors ,Sunitinib malate ,03 medical and health sciences ,0302 clinical medicine ,Neuroendocrine tumor ,Pancreatic cancer ,medicine ,Everolimus ,Pathological ,Neoadjuvant therapy ,business.industry ,lcsh:RD1-811 ,medicine.disease ,68Ga-DOTATOC-PET/CT ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,Radiology ,business ,medicine.drug - Abstract
Background Although pancreatic neuroendocrine tumors generally have a far better prognosis relative to pancreatic cancer, the varied manifestations lead to treatment-related challenges. Everolimus therapy is generally recommended for patients with advanced pancreatic neuroendocrine tumors; however, its efficacy in a neoadjuvant setting remains unclear. Here we present a case of a giant pancreatic neuroendocrine tumor with a portal tumor thrombus that became resectable after everolimus therapy. Case presentation A 62-year-old woman was admitted to our hospital for surgical resection of a giant pancreatic neuroendocrine tumor in the left upper abdomen. Unfortunately, she was ineligible for surgery because the tumor had extended near the hepatic hilus in the portal vein, and she was administered everolimus (10 mg/day). After 2 years of this therapy, the extent of portal vein involvement had decreased, despite the lack of significant changes in the tumor size, and the hepatic hilus became free of disease. She was subsequently referred to us for resection via distal pancreatectomy with portal vein reconstruction because the tumor had begun to grow slowly. Pathological review identified a grade 2 neuroendocrine tumor with no lymph node metastasis. The patient’s postoperative course was uneventful, and she has remained recurrence-free for 27 months, despite a lack of additional treatment. Conclusions Our experience suggests that everolimus could be useful for neoadjuvant therapy in cases of locally advanced pancreatic neuroendocrine tumor.
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- 2017
76. Comparison of Recurrence Between Pancreatic and Duodenal Neuroendocrine Neoplasms After Curative Resection: A Single-Institution Analysis
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Akitada Yogo, Shinji Uemoto, Kenzo Nakano, Toshihiko Masui, Takayuki Anazawa, Asahi Sato, Yuichiro Uchida, Kyoichi Takaori, Kazuyuki Nagai, and Yoshiya Kawaguchi
- Subjects
Adult ,Male ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Neuroendocrine tumors ,Gastroenterology ,Pancreaticoduodenectomy ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Pancreatectomy ,Duodenal Neoplasms ,Internal medicine ,medicine ,Humans ,Neoplasm Invasiveness ,Child ,Survival rate ,Duodenal Neoplasm ,Aged ,Retrospective Studies ,Aged, 80 and over ,business.industry ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Prognosis ,Pancreatic Neoplasms ,Survival Rate ,Neuroendocrine Tumors ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,Lymphatic Metastasis ,030211 gastroenterology & hepatology ,Surgery ,Female ,Lymph ,Neoplasm Recurrence, Local ,business ,Pancreas ,Follow-Up Studies - Abstract
The primary site of a neuroendocrine neoplasms (NEN) around the head of the pancreas is sometimes difficult to assess before resection, and the characteristics of the primary site around this region have not been elucidated for recurrence after curative resection. In this study, the clinicopathologic characteristics of pancreatic NEN (PanNEN) and duodenal NEN (DuNEN) were evaluated, and the risk factors as well as the recurrence types after resection were investigated. Consecutively diagnosed NEN patients at the authors’ hospital from January 2000 to July 2016 were evaluated in this study. For 117 PanNEN patients and 31 non-ampullary DuNEN patients, R0 resection was achieved. The median follow-up period was 8.1 years. In this study, 27 PanNEN patients (23.1%) had recurrences, with a median disease-free survival (DFS) of 133 months, whereas 11 DuNEN patients (35.5%) had recurrences, with a median DFS of 156 months. The PanNEN patients tended to have primary recurrence in the liver (85.2%), followed by lymph nodes (11.1%). The independent risk factors for short DFS were lymph node metastasis at resection (p = 0.001) and microvascular invasion (p = 0.048). In contrast, the DuNEN patients were likely to have lymph node metastasis (81.8%). The independent risk factors for short DFS were lymph node metastasis at resection (p = 0.003) and large diameter (p = 0.013). Most initial recurrences of PanNEN occurred in the liver, whereas those of DuNEN appeared in lymph nodes, suggesting that proper diagnosis of the primary site and appropriate imaging methods for surveillance after resection are necessary.
- Published
- 2017
77. Streptozocin chemotherapy for advanced/metastatic well-differentiated neuroendocrine tumors: an analysis of a multi-center survey in Japan
- Author
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Takeshi Takamoto, Izumi Komoto, Takuji Okusaka, Wataru Kimura, Takuya Hashimoto, Keiji Sano, Norihiro Kokudo, Kyoichi Takaori, Masayuki Imamura, Chigusa Morizane, Tetsuhide Ito, and Taku Aoki
- Subjects
Adult ,Male ,Oncology ,medicine.medical_specialty ,endocrine system diseases ,medicine.medical_treatment ,Neuroendocrine tumors ,Streptozocin ,Disease-Free Survival ,Metastasis ,Young Adult ,Progression-free survival rate ,Japan ,Surgical oncology ,Internal medicine ,medicine ,Humans ,Survival rate ,Aged ,Retrospective Studies ,Original Article—Liver, Pancreas, and Biliary Tract ,Chemotherapy ,Antibiotics, Antineoplastic ,business.industry ,Gastroenterology ,nutritional and metabolic diseases ,Retrospective cohort study ,Middle Aged ,Hepatology ,medicine.disease ,Multi-center survey ,Surgery ,Pancreatic Neoplasms ,Survival Rate ,Neuroendocrine Tumors ,Treatment Outcome ,Female ,Tumor response ,business - Abstract
Background Neuroendocrine tumors (NETs) are believed to be relatively rare and to follow a generally indolent course. However, liver metastases are common in NET patients and the outcome of NET liver metastasis is poor. In Western countries, streptozocin (STZ) has been established as a first-line anticancer drug for unresectable NET; however, STZ cannot be used in daily practice in Japan. The aim of the present study was to determine the status of STZ usage in Japan and to evaluate the effectiveness and safety of STZ chemotherapy in Japanese NET patients. Methods A retrospective multi-center survey was conducted. Five institutions with experience performing STZ chemotherapy participated in the study. The patient demographics, tumor characteristics, context of STZ chemotherapy, and patient outcome were collected and assessed. Results Fifty-four patients were enrolled. The main recipients of STZ chemotherapy were middle-aged patients with pancreatic NET and unresectable liver metastases. The predominant regimen was the weekly/bi-weekly intravenous administration of STZ combined with other oral anticancer agents. STZ monotherapy was used in one-fourth of the patients. The median progression-free and overall survival periods were 11.8 and 38.7 months, respectively, and sustained stable disease was obtained in some selected patients. The adverse events profile was mild and tolerable. Conclusions Our survey showed the clinical benefit and safety of STZ therapy for Japanese patients with unresectable NET. Therefore, we recommend that STZ, which is the only cytotoxic agent available against NET, should be used in daily practice in Japan. Electronic supplementary material The online version of this article (doi:10.1007/s00535-014-1006-3) contains supplementary material, which is available to authorized users.
- Published
- 2014
78. Radiotherapy for patients with isolated local recurrence of primary resected pancreatic cancer
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Yukinori Matsuo, Shinji Uemoto, Yoshiya Kawaguchi, Kyoichi Takaori, Takashi Mizowaki, Michio Yoshimura, Satoshi Itasaka, Keiko Shibuya, Akira Nakamura, and Masahiro Hiraoka
- Subjects
Adult ,Male ,Oncology ,medicine.medical_specialty ,Ileus ,medicine.medical_treatment ,Favorable prognosis ,Deoxycytidine ,Gastroenterology ,Disease-Free Survival ,Pancreatectomy ,Pancreatic cancer ,Internal medicine ,medicine ,Humans ,Radiology, Nuclear Medicine and imaging ,Aged ,Pain Measurement ,Tegafur ,Tumor marker ,Aged, 80 and over ,Disease free interval ,business.industry ,Palliative Care ,Radiotherapy Dosage ,Chemoradiotherapy, Adjuvant ,Middle Aged ,Prognosis ,medicine.disease ,Combined Modality Therapy ,Gemcitabine ,Pancreatic Neoplasms ,Radiation therapy ,Drug Combinations ,Oxonic Acid ,Toxicity ,Female ,Neoplasm Recurrence, Local ,business ,medicine.drug - Abstract
To evaluate the treatment outcomes of radiotherapy and prognostic factors for recurrent pancreatic cancer. The study comprised 30 patients who developed a locoregional recurrence of primarily resected pancreatic cancer and received radiotherapy between 2000 and 2013 with a median dose of 54 Gy (range, 39–60 Gy). Concurrent chemotherapy included gemcitabine for 18 patients and S-1 for seven patients. The treatment outcomes and prognostic factors were retrospectively analyzed. The median follow-up after radiotherapy was 14.6 months. The 1-year overall survival, local control, and progression-free survival rates were 69 %, 67 %, and 32 %, respectively. The median overall survival and progression-free survival rates were 15.9 and 6.9 months, respectively. Tumor marker reduction and ≥ 50 % reduction were observed in 18 and two patients, respectively. Of the seven patients who exhibited pain symptoms, four and two patients were partly and completely relieved, respectively. Late grade 3 ileus and gastroduodenal bleeding were observed in one patient each. Among the clinicopathological factors evaluated, only a disease-free interval of greater than 18.9 months exhibited a significant association with improved overall survival (p = 0.017). Radiotherapy for isolated locally recurrent pancreatic cancer resulted in encouraging local control, overall survival, and palliative effects with mild toxicity, particularly in patients with a prolonged disease-free interval. This treatment strategy should be prospectively evaluated.
- Published
- 2014
79. Neutrophil‐to‐lymphocyte ratio for predicting palliative chemotherapy outcomes in advanced pancreatic cancer patients
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Yuzo Kodama, Takafumi Nishimura, Masashi Kanai, Peng Xue, Shinji Uemoto, Tsutomu Chiba, Kyoichi Takaori, Shigemi Matsumoto, Yukiko Mori, Yoshiya Kawaguchi, and Norimitsu Uza
- Subjects
Male ,Oncology ,Cancer Research ,medicine.medical_specialty ,Palliative care ,Neutrophils ,medicine.medical_treatment ,pancreatic cancer ,Deoxycytidine ,NLR ,Cohort Studies ,Erlotinib Hydrochloride ,Internal medicine ,Pancreatic cancer ,Antineoplastic Combined Chemotherapy Protocols ,medicine ,Humans ,Chemotherapy ,Radiology, Nuclear Medicine and imaging ,Lymphocytes ,Prospective Studies ,Neutrophil to lymphocyte ratio ,prognostic factor ,Prospective cohort study ,Survival analysis ,Aged ,Tegafur ,Original Research ,Predictive marker ,business.industry ,Palliative Care ,fungi ,Cancer ,Prognosis ,medicine.disease ,Survival Analysis ,Gemcitabine ,Surgery ,Pancreatic Neoplasms ,Drug Combinations ,Oxonic Acid ,Treatment Outcome ,inflammation ,Quinazolines ,Female ,business ,Carcinoma, Pancreatic Ductal - Abstract
Several previous studies reported that the neutrophil-to-lymphocyte ratio (NLR) could be a promising prognostic factor for patients with cancer. We aimed to determine the prognostic value of NLR in patients with advanced pancreatic cancer (APC) following palliative chemotherapy. We retrospectively reviewed 252 consecutive APC patients receiving palliative chemotherapy between January 2006 and December 2012. We classified the patients according to the pretreatment NLR values (≤5 or >5) into two groups and investigated the difference in treatment outcomes, including time to treatment failure (TTF) and overall survival (OS). A total of 212 patients had pretreatment NLR values of ≤5 (group A), while 40 patients had an NLR of >5 (group B). TTF and OS were significantly shorter in group B than in group A (3.1 vs. 8.7 months and 6.0 vs. 12.8 months, respectively; both P 5. Our results support the idea that NLR can be a promising prognostic and predictive marker for APC patients receiving palliative chemotherapy.
- Published
- 2014
80. Expression of SOX9 in Intraductal Papillary Mucinous Neoplasms of the Pancreas
- Author
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Kyoichi Takaori, Michiya Kawaguchi, Toshihiko Masui, Yoshiya Kawaguchi, Shinji Uemoto, Tatsuo Ito, and Fanbin Meng
- Subjects
Male ,endocrine system ,Pathology ,medicine.medical_specialty ,animal structures ,endocrine system diseases ,Endocrinology, Diabetes and Metabolism ,SOX9 ,Endocrinology ,stomatognathic system ,Internal Medicine ,Carcinoma ,medicine ,Humans ,Aged ,Hepatology ,biology ,business.industry ,CD44 ,SOX9 Transcription Factor ,Middle Aged ,medicine.disease ,Adenocarcinoma, Mucinous ,Immunohistochemistry ,Carcinoma, Papillary ,Pancreatic Neoplasms ,Hyaluronan Receptors ,Testis determining factor ,medicine.anatomical_structure ,Dysplasia ,embryonic structures ,biology.protein ,Adenocarcinoma ,Female ,Pancreas ,business ,Carcinoma, Pancreatic Ductal - Abstract
Objectives SRY (sex determining region Y) box 9 (SOX9) plays a key role in the embryologic development, differentiation, and maintenance of organs in the pancreas as well as progression of several kinds of tumors. The aim of the present study was to evaluate the expression and potential role of SOX9 in intraductal papillary mucinous neoplasms (IPMNs) of the pancreas. Methods The authors selected 27 pathological tissues from 19 IPMN cases to assess the expression of SOX9 by means of immunohistochemistry and analyzed the expression pattern of SOX9 with 78 lesions obtained from these tissues stained by SOX9. Results SOX9 was expressed in the normal pancreas, IPMN, and pancreatic ductal adenocarcinoma. SOX9-positive cells were confined to the lower portions of the papillary structures of IPMN. However, SOX9 was expressed in the entire epithelium once the neoplasms advanced to high-grade dysplasia and invasive carcinoma. The expression pattern of SOX9 was similar to that of CD44 in the normal pancreas and IPMN. Double staining of SOX9 and CD44 detected colocalization of SOX9 and CD44 in IPMN. Conclusions Changes in the SOX9 expression pattern may be involved in the mechanisms of the malignant progression of IPMN.
- Published
- 2014
81. Clinical sequencing using a next-generation sequencing-based multiplex gene assay in patients with advanced solid tumors
- Author
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Hironori Haga, Akinori Hiroshima, Tomohiro Sakuma, Manabu Muto, Masashi Kanai, Masahiko Nakatsui, Yoshihiro Yamamoto, Hiroshi Seno, Sachiko Minamiguchi, Tadayuki Kou, Kyoichi Takaori, Yasushi Okuno, Aiko Sugiyama, Mayumi Kamada, Shigemi Matsumoto, Hidehiko Miyake, Eijiro Nakamura, Hiroaki Mochizuki, and Shinji Kosugi
- Subjects
0301 basic medicine ,Oncology ,Adult ,Male ,Cancer Research ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,DNA Mutational Analysis ,STK11 ,next‐generation sequencing ,Biology ,Bioinformatics ,medicine.disease_cause ,multiplex gene assay ,DNA sequencing ,03 medical and health sciences ,Young Adult ,0302 clinical medicine ,Clinical Research ,genotype-directed therapy ,Internal medicine ,Neoplasms ,precision cancer medicine ,medicine ,Humans ,Multiplex ,Clinical significance ,In patient ,Precision Medicine ,Child ,Gene ,Aged ,Aged, 80 and over ,Chemotherapy ,High-Throughput Nucleotide Sequencing ,General Medicine ,Original Articles ,Middle Aged ,030104 developmental biology ,genotype‐directed therapy ,030220 oncology & carcinogenesis ,next-generation sequencing ,Female ,Original Article ,KRAS ,Actionable mutation - Abstract
Advances in next-generation sequencing (NGS) technologies have enabled physicians to test for genomic alterations in multiple cancer-related genes at once in daily clinical practice. In April 2015, we introduced clinical sequencing using an NGS-based multiplex gene assay (OncoPrime) certified by the Clinical Laboratory Improvement Amendment. This assay covers the entire coding regions of 215 genes and the rearrangement of 17 frequently rearranged genes with clinical relevance in human cancers. The principal indications for the assay were cancers of unknown primary site, rare tumors, and any solid tumors that were refractory to standard chemotherapy. A total of 85 patients underwent testing with multiplex gene assay between April 2015 and July 2016. The most common solid tumor types tested were pancreatic (n = 19; 22.4%), followed by biliary tract (n = 14; 16.5%), and tumors of unknown primary site (n = 13; 15.3%). Samples from 80 patients (94.1%) were successfully sequenced. The median turnaround time was 40 days (range, 18–70 days). Potentially actionable mutations were identified in 69 of 80 patients (86.3%) and were most commonly found in TP53 (46.3%), KRAS (23.8%), APC (18.8%), STK11 (7.5%), and ATR (7.5%). Nine patients (13.0%) received a subsequent therapy based on the NGS assay results. Implementation of clinical sequencing using an NGS-based multiplex gene assay was feasible in the clinical setting and identified potentially actionable mutations in more than 80% of patients. Current challenges are to incorporate this genomic information into better therapeutic decision making.
- Published
- 2016
82. Genetics and biology of pancreatic cancer and its precursor lesions: lessons learned from human pathology and mouse models
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Hiroshi Seno, Akihisa Fukuda, Kyoichi Takaori, and Motoyuki Tsuda
- Subjects
Genetics ,congenital, hereditary, and neonatal diseases and abnormalities ,Diagnostic methods ,Pancreatic ductal adenocarcinoma ,health care facilities, manpower, and services ,Endocrinology, Diabetes and Metabolism ,Genomic sequencing ,education ,Biology ,medicine.disease ,Transcriptome ,Endocrinology ,Oncology ,Late diagnosis ,health services administration ,Pancreatic cancer ,Internal Medicine ,medicine ,Treatment strategy ,Human Pathology - Abstract
Pancreatic ductal adenocarcinoma (PDA) is one of the most fatal malignancies; it has an extremely poor prognosis due to its late diagnosis and limited response to conventional treatments. To improve PDA prognosis, new diagnostic and treatment strategies are urgently required. Recent genomic sequencing analyses revealed several mutated core signaling pathways and transcriptomic subtypes in PDA. A better understanding of PDA biology based on these genetic insights would promote the future development of novel diagnostic methods and treatments. In this review, we summarize our current understanding of PDA genetics and biology, predominantly via insights from mouse model studies.
- Published
- 2019
83. GPR119 expression in normal human tissues and islet cell tumors: evidence for its islet-gastrointestinal distribution, expression in pancreatic beta and alpha cells, and involvement in islet function
- Author
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Ken Ebihara, Kyoichi Takaori, Shinji Odori, Junji Fujikura, Ryuichiro Doi, Yoshiharu Sakai, Yoshiya Kawaguchi, Shinji Uemoto, Kiminori Hosoda, Tsutomu Tomita, Kazuwa Nakao, and Toru Kusakabe
- Subjects
Adult ,Male ,medicine.medical_specialty ,endocrine system ,endocrine system diseases ,Endocrinology, Diabetes and Metabolism ,Glucagonoma ,Biology ,Receptors, G-Protein-Coupled ,Mice ,Young Adult ,Endocrinology ,Free fatty acid receptor 1 ,Internal medicine ,Insulin-Secreting Cells ,Gene expression ,medicine ,Animals ,Humans ,RNA, Messenger ,Gastrointestinal hormones ,Insulinoma ,Aged ,geography ,geography.geographical_feature_category ,Reverse Transcriptase Polymerase Chain Reaction ,Pancreatic islets ,Insulin secretion ,Middle Aged ,Islet ,medicine.disease ,Gastrointestinal Tract ,Gene Expression Regulation, Neoplastic ,Mice, Inbred C57BL ,Pancreatic Neoplasms ,medicine.anatomical_structure ,Glucagon-Secreting Cells ,Duodenum ,Regression Analysis ,Female ,Pancreas - Abstract
Objective GPR119 is reportedly involved in regulating glucose metabolism and food intake in rodents, but little is known about its expression and functional significance in humans. To begin to assess the potential clinical importance of GPR119, the distribution of GPR119 gene expression in humans was examined. Materials/Methods Expression of GPR119 mRNA in fresh samples of normal human pancreas ( n= 19) and pancreatic islets ( n =3) and in insulinomas ( n =2) and glucagonomas ( n =2), all collected at surgery, was compared with the mRNA expression of various receptors highly expressed and operative in human pancreatic islets. Results GPR119 mRNA was most abundant in the pancreas, followed by the duodenum, stomach, jejunum, ileum and colon. Pancreatic levels of GPR119 mRNA were similar to those of GPR40 mRNA and were higher than those of GLP1R and SUR1 mRNA, which are strongly expressed in human pancreatic islets. Moreover, levels of GPR119 mRNA in pancreatic islets were more than 10 times higher than in adjacent pancreatic tissue, as were levels of GPR40 mRNA. GPR119 mRNA was also abundant in two cases of insulinoma and two cases of glucagonoma, but was undetectable in a pancreatic acinar cell tumor. Similar results were obtained with mouse pancreatic islets, MIN6 insulinoma cells and alpha-TC glucagonoma cells. Conclusions The results provide evidence of an islet-gastrointestinal distribution of GPR119, its expression in pancreatic beta and alpha cells, and its possible involvement in islet function. They also provide the basis for a better understanding of the potential clinical importance of GPR119.
- Published
- 2013
84. Overview of 'International Consensus Guidelines for Management of Intraductal Papillary Mucinous Neoplasm 2012' and prospects for the future from an international point of view
- Author
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Kyoichi Takaori
- Subjects
medicine.medical_specialty ,biology ,Point (typography) ,Intraductal papillary mucinous neoplasm ,business.industry ,General surgery ,GNAS complex locus ,biology.protein ,medicine ,Robotic surgery ,medicine.disease ,business - Published
- 2013
85. Abdominal contamination with Candida albicans after pancreaticoduodenectomy is related to hemorrhage associated with pancreatic fistulas
- Author
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Kenzo Nakano, Asahi Sato, Shinji Uemoto, Toshihiko Masui, Nao Sankoda, Takayuki Anazawa, Kyoichi Takaori, and Yoshiya Kawaguchi
- Subjects
Adult ,Male ,medicine.medical_specialty ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,Hemorrhage ,030230 surgery ,Demographic data ,Pancreaticoduodenectomy ,03 medical and health sciences ,Pancreatic Fistula ,Young Adult ,0302 clinical medicine ,Postoperative Complications ,Risk Factors ,Candida albicans ,Prevalence ,Medicine ,Humans ,Risk factor ,Aged ,Retrospective Studies ,Aged, 80 and over ,Hepatology ,biology ,business.industry ,Gastroenterology ,Candidiasis ,Odds ratio ,Perioperative ,Middle Aged ,biology.organism_classification ,Confidence interval ,Surgery ,030220 oncology & carcinogenesis ,Hemorrhagic complication ,Female ,business - Abstract
Pancreatic fistulas are one of the most frequent morbidities after pancreaticoduodenectomy. Several reports have suggested a relationship between bacterial infections and postoperative pancreatic fistulas, although details of the mechanisms involved in hemorrhage in association with the fistulas have not been elucidated. This study retrospectively examined the relationship between positive drainage culture and hemorrhage associated with pancreatic fistulas after pancreaticoduodenectomy.From January 2012 to December 2015, 142 consecutive patients underwent pancreaticoduodenectomy at our institution. We retrospectively reviewed the patients' demographic data, perioperative laboratory data, and drainage culture results.Twenty-four (17%) patients had clinically relevant postoperative pancreatic fistulas, whereas thirty-four (24%) patients experienced positive drainage culture. Multivariable analysis revealed that positive drainage culture was independently associated with clinically relevant postoperative pancreatic fistulas (odds ratio, 18.1; 95% confidence interval, 5.5-72.2; P 0.001). Additionally, the prevalence of Candida albicans in the lavage of eight patients significantly correlated with hemorrhage associated with pancreatic fistulas (odds ratio, 43.5; 95% confidence interval, 6.2-513.3; P 0.001). Seventy-five percent (6/8) of these patients suffered potentially lethal hemorrhagic complications and needed intervention.A positive abdominal drainage culture is associated with the development of pancreatic fistulas. Moreover, the presence of Candida albicans in drainage fluid may be a risk factor for hemorrhagic complications.
- Published
- 2016
86. P-220Clinical evaluation of intensity-modulated radiotherapy for locally advanced pancreatic cancer
- Author
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S. Matsumoto, Yuzo Kodama, Keiko Shibuya, Masahiro Hiraoka, Yoko Goto, Takashi Mizowaki, Satoshi Itasaka, Kyoichi Takaori, Takahiro Kishi, Akira Nakamura, and Katsuyuki Sakanaka
- Subjects
Oncology ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Hematology ,Intensity-modulated radiation therapy ,medicine.disease ,Locally advanced pancreatic cancer ,Radiation therapy ,Abstracts ,Internal medicine ,Pancreatic cancer ,medicine ,Intensity modulated radiotherapy ,business - Published
- 2016
87. Pancreatic cancer
- Author
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Terumi Kamisawa, Laura D Wood, Takao Itoi, and Kyoichi Takaori
- Subjects
CA-19-9 Antigen ,Organoplatinum Compounds ,Paclitaxel ,Genes, p16 ,Leucovorin ,General Medicine ,Irinotecan ,Deoxycytidine ,Gemcitabine ,Carcinoembryonic Antigen ,Endosonography ,Oxaliplatin ,Pancreatic Neoplasms ,Proto-Oncogene Proteins p21(ras) ,Pancreatectomy ,Albumins ,Antineoplastic Combined Chemotherapy Protocols ,Humans ,Camptothecin ,Fluorouracil ,Tumor Suppressor Protein p53 ,Neoplasms, Cystic, Mucinous, and Serous ,Endoscopic Ultrasound-Guided Fine Needle Aspiration ,Carcinoma, Pancreatic Ductal ,Smad4 Protein - Abstract
Pancreatic cancer is a highly lethal disease, for which mortality closely parallels incidence. Most patients with pancreatic cancer remain asymptomatic until the disease reaches an advanced stage. There is no standard programme for screening patients at high risk of pancreatic cancer (eg, those with a family history of pancreatic cancer and chronic pancreatitis). Most pancreatic cancers arise from microscopic non-invasive epithelial proliferations within the pancreatic ducts, referred to as pancreatic intraepithelial neoplasias. There are four major driver genes for pancreatic cancer: KRAS, CDKN2A, TP53, and SMAD4. KRAS mutation and alterations in CDKN2A are early events in pancreatic tumorigenesis. Endoscopic ultrasonography and endoscopic ultrasonography-guided fine-needle aspiration offer high diagnostic ability for pancreatic cancer. Surgical resection is regarded as the only potentially curative treatment, and adjuvant chemotherapy with gemcitabine or S-1, an oral fluoropyrimidine derivative, is given after surgery. FOLFIRINOX (fluorouracil, folinic acid [leucovorin], irinotecan, and oxaliplatin) and gemcitabine plus nanoparticle albumin-bound paclitaxel (nab-paclitaxel) are the treatments of choice for patients who are not surgical candidates but have good performance status.
- Published
- 2016
88. International Association of Pancreatology (IAP)/European Pancreatic Club (EPC) consensus review of guidelines for the treatment of pancreatic cancer
- Author
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Francesco Sclafani, Colin D. Johnson, Thomas Brunner, John P. Neoptolemos, Massimo Falconi, Marc Giovannini, Andrew V. Biankin, Koji Yamaguchi, Francisco X. Real, David Cunningham, Adam E Frampton, William H. Nealon, Richard J. Jackson, Christopher L. Wolfgang, Ivana Cataldo, Kyoichi Takaori, Junji Furuse, Claudio Bassi, John A. Windsor, Akira Nakamura, Aldo Scarpa, and Fiona Campbell
- Subjects
medicine.medical_specialty ,Future studies ,Endocrinology, Diabetes and Metabolism ,Chemotherapy ,Guidelines ,Pancreatic cancer ,Pathology ,Radiation ,Surgery ,Antineoplastic Agents ,English language ,030230 surgery ,Gastroenterology ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,medicine ,Humans ,Intensive care medicine ,Hepatology ,business.industry ,High mortality ,medicine.disease ,Pancreatic Neoplasms ,030220 oncology & carcinogenesis ,Practice Guidelines as Topic ,Level evidence ,Club ,Active treatment ,business - Abstract
Background Pancreatic cancer is one of the most devastating diseases with an extremely high mortality. Medical organizations and scientific societies have published a number of guidelines to address active treatment of pancreatic cancer. The aim of this consensus review was to identify where there is agreement or disagreement among the existing guidelines and to help define the gaps for future studies. Methods A panel of expert pancreatologists gathered at the 46th European Pancreatic Club Meeting combined with the 18th International Association of Pancreatology Meeting and collaborated on critical reviews of eight English language guidelines for the clinical management of pancreatic cancer. Clinical questions (CQs) of interest were proposed by specialists in each of nine areas. The recommendations for the CQs in existing guidelines, as well as the evidence on which these were based, were reviewed and compared. The evidence was graded as sufficient, mediocre or poor/absent. Results Only 4 of the 36 CQs, had sufficient evidence for agreement. There was also agreement in five additional CQs despite the lack of sufficient evidence. In 22 CQs, there was disagreement regardless of the presence or absence of evidence. There were five CQs that were not addressed adequately by existing guidelines. Conclusion The existing guidelines provide both evidence- and consensus-based recommendations. There is also considerable disagreement about the recommendations in part due to the lack of high level evidence. Improving the clinical management of patients with pancreatic cancer, will require continuing efforts to undertake research that will provide sufficient evidence to allow agreement.
- Published
- 2016
89. Artery-First Approaches to Pancreaticoduodenectomy
- Author
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Kyoichi Takaori and Shinji Uemoto
- Published
- 2016
90. 4. Current Therapies for IPMN and MCN
- Author
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Kyoichi Takaori
- Subjects
Oncology ,medicine.medical_specialty ,Pathology ,Intraductal papillary mucinous neoplasm ,business.industry ,General Medicine ,medicine.disease ,Cystic Neoplasm ,medicine.anatomical_structure ,Pancreatic tumor ,Internal medicine ,medicine ,Pancreas ,business - Published
- 2012
91. A revised classification system and recommendations from the Baltimore consensus meeting for neoplastic precursor lesions in the pancreas
- Author
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Michio Shimizu, Andrew V. Biankin, Irene Esposito, Olca Basturk, Noriyoshi Fukushima, Alyssa M. Krasinskas, Lodewijk A.A. Brosens, Daniel S. Longnecker, Hanno Matthaei, Jorge Albores-Saavedra, Seung-Mo Hong, David S. Klimstra, Toru Furukawa, Yo Kato, N. Volkan Adsay, Laura D. Wood, Günter Klöppel, Michael Goggins, Shinichi Yachida, Benoit Terris, Kyoichi Takaori, G. Johan A. Offerhaus, and Ralph H. Hruban
- Subjects
Pathology ,medicine.medical_specialty ,Consensus ,endocrine system diseases ,Biopsy ,International Cooperation ,precursor ,Pancreatic Intraepithelial Neoplasia ,pancreatic intraepithelial neoplasia (PanIN) ,Research Support ,Article ,N.I.H ,Pathology and Forensic Medicine ,Research Support, N.I.H., Extramural ,Predictive Value of Tests ,Terminology as Topic ,intraductal papillary mucinous neoplasm (IPMN) ,medicine ,Carcinoma ,Atypia ,Journal Article ,Humans ,Neoplasm Invasiveness ,Cooperative Behavior ,adenocarcinoma ,Intraductal papillary mucinous neoplasm ,business.industry ,Carcinoma in situ ,Extramural ,Consensus Development Conference ,medicine.disease ,Cystic Neoplasm ,Tumor Burden ,atypical flat lesions (AFL) ,Pancreatic Neoplasms ,Dysplasia ,mucinous cystic neoplasm (MCN) ,Adenocarcinoma ,Surgery ,Neoplasm Grading ,Anatomy ,business ,Neoplasms, Cystic, Mucinous, and Serous ,Precancerous Conditions ,Carcinoma in Situ ,Carcinoma, Pancreatic Ductal - Abstract
International experts met to discuss recent advances and to revise the 2004 recommendations for assessing and reporting precursor lesions to invasive carcinomas of the pancreas, including pancreatic intraepithelial neoplasia (PanIN), intraductal papillary mucinous neoplasm (IPMN), mucinous cystic neoplasm, and other lesions. Consensus recommendations include the following: (1) To improve concordance and to align with practical consequences, a 2-tiered system (low vs. high grade) is proposed for all precursor lesions, with the provision that the current PanIN-2 and neoplasms with intermediate-grade dysplasia now be categorized as low grade. Thus, "high-grade dysplasia" is to be reserved for only the uppermost end of the spectrum ("carcinoma in situ"-type lesions). (2) Current data indicate that PanIN of any grade at a margin of a resected pancreas with invasive carcinoma does not have prognostic implications; the clinical significance of dysplasia at a margin in a resected pancreas with IPMN lacking invasive carcinoma remains to be determined. (3) Intraductal lesions 0.5 to 1 cm can be either large PanINs or small IPMNs. The term "incipient IPMN" should be reserved for lesions in this size with intestinal or oncocytic papillae or GNAS mutations. (4) Measurement of the distance between an IPMN and invasive carcinoma and sampling of intervening tissue are recommended to assess concomitant versus associated status. Conceptually, concomitant invasive carcinoma (in contrast with the "associated" group) ought to be genetically distinct from an IPMN elsewhere in the gland. (5) "Intraductal spread of invasive carcinoma" (aka, "colonization") is recommended to describe lesions of invasive carcinoma invading back into and extending along the ductal system, which may morphologically mimic high-grade PanIN or even IPMN. (6) "Simple mucinous cyst" is recommended to describe cysts >1 cm having gastric-type flat mucinous lining at most minimal atypia without ovarian-type stroma to distinguish them from IPMN. (7) Human lesions resembling the acinar to ductal metaplasia and atypical flat lesions of genetically engineered mouse models exist and may reflect an alternate pathway of carcinogenesis; however, their biological significance requires further study. These revised recommendations are expected to improve our management and understanding of precursor lesions in the pancreas.
- Published
- 2015
92. Identification of S-acyl glutathione conjugates of bile acids in human bile by means of LC/ESI-MS
- Author
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Alan F. Hofmann, Shigeo Ikegawa, Toshiaki Shimizu, Naohiro Hori, Kuniko Mitamura, Hiroshi Nittono, Kyoichi Takaori, Mitsuyoshi Suzuki, Hajime Takikawa, and Takashi Iida
- Subjects
Adult ,Spectrometry, Mass, Electrospray Ionization ,Lithocholic acid ,Electrospray ionization ,Clinical Biochemistry ,Biochemistry ,Bile duct cancer ,Bile Acids and Salts ,chemistry.chemical_compound ,Endocrinology ,Biotransformation ,Liquid chromatography–mass spectrometry ,medicine ,Animals ,Bile ,Humans ,Molecular Biology ,Aged ,Pharmacology ,Chromatography ,Organic Chemistry ,Infant ,Glutathione ,Middle Aged ,medicine.disease ,Ursodeoxycholic acid ,Orders of magnitude (mass) ,Rats ,chemistry ,Chromatography, Liquid ,medicine.drug - Abstract
Previous work from this laboratory has reported the biotransformation of bile acids (BA) into the thioester-linked glutathione (GSH) conjugates via the intermediary metabolites formed by BA:CoA ligase and shown that such GSH conjugates are excreted into the bile in healthy rats as well as rats dosed with lithocholic acid or ursodeoxycholic acid. To examine whether such novel BA–GSH conjugates are present in human bile, we determined the concentration of the GSH conjugates of the five BA that predominate in human bile. Bile was obtained from three infants (age 4, 10, and 13 months) and the BA–GSH conjugates quantified by means of liquid chromatography (LC)/electrospray ionization (ESI)-linear ion trap mass spectrometry (MS) in negative-ion scan mode, monitoring characteristic transitions of the analytes. By LC/ESI-MS, only primary BA were present in biliary BA, indicating that the dehydroxylating flora had not yet developed. GSH conjugates of chenodeoxycholic and lithocholic acid were present in concentrations ranging from 27 to 1120 pmol/ml, several orders of magnitude less than those of natural BA N-acylamidates. GSH conjugates were not present, however, in the ductal bile obtained from 10 adults (nine choledocholithiasis, one bile duct cancer). Our results indicate that BA–GSH conjugates are formed and excreted in human bile, at least in infants, although this novel mode of conjugation is a very minor pathway.
- Published
- 2011
93. Immunosuppressive therapy in islet transplantation
- Author
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Jun Kanamune, Shinji Uemoto, Yasuhiro Iwanaga, and Kyoichi Takaori
- Subjects
Transplantation ,medicine.medical_specialty ,geography ,geography.geographical_feature_category ,business.industry ,Urology ,medicine ,Islet ,business - Abstract
膵島移植では,インスリン離脱するために2~3回の移植を必要とし,たとえインスリン離脱してもそれを移植後長期に渡って維持することが難しい.アロ免疫反応以外に膵島移植特有の免疫反応があるからである.まず,膵島が門脈経由で移植された直後に,補体,凝固,そして自然免疫反応によって血栓性及び炎症性反応であるInstant blood-mediated inflammatory reaction(IBMIR)が引き起こされる.次に,核内タンパク質が関与する早期拒絶反応も起こり,中長期的には,主な対象である1型糖尿病が自己免疫疾患であるため自己免疫の再発が起こる.移植成績の向上を図るため,これらの免疫反応から移植膵島を防御する方法が検討されている.免疫抑制剤については,ミネソタ大学から報告されたプロトコールが有望で,長期成績の改善が示唆されている.本邦でも,この方法を踏襲したプロトコールの導入が予定されている.
- Published
- 2011
94. ARID1A Maintains Differentiation of Pancreatic Ductal Cells and Inhibits Development of Pancreatic Ductal Adenocarcinoma in Mice
- Author
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Motoyuki Tsuda, Kyoichi Takaori, Tsutomu Chiba, Munemasa Nagao, Haruhiko Akiyama, Takuto Yoshioka, Takahisa Maruno, Christopher V.E. Wright, Akihisa Fukuda, Hiroshi Seno, Shinji Uemoto, Takaaki Yoshikawa, Zong Wang, Osamu Araki, Satoshi Ogawa, Yukiko Hiramatsu, Yoshito Kimura, Kozo Ikuta, and Y. Takada
- Subjects
0301 basic medicine ,endocrine system diseases ,Hepatology ,ARID1A ,Oncogene ,Intraductal papillary mucinous neoplasm ,Gastroenterology ,Pancreatic Intraepithelial Neoplasia ,Biology ,medicine.disease ,medicine.disease_cause ,03 medical and health sciences ,030104 developmental biology ,0302 clinical medicine ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Pancreatic cancer ,medicine ,Cancer research ,KRAS ,Pancreas ,PI3K/AKT/mTOR pathway - Abstract
Background & Aims The ARID1A gene encodes a protein that is part of the large adenosine triphosphate (ATP)-dependent chromatin remodeling complex SWI/SNF and is frequently mutated in human pancreatic ductal adenocarcinomas (PDACs). We investigated the functions of ARID1A during formation of PDACs in mice. Methods We performed studies with Ptf1a-Cre;KrasG12D mice, which express activated Kras in the pancreas and develop pancreatic intraepithelial neoplasias (PanINs), as well as those with disruption of Aird1a (Ptf1a-Cre;KrasG12D;Arid1af/f mice) or disruption of Brg1 (encodes a catalytic ATPase of the SWI/SNF complex) (Ptf1a-Cre;KrasG12D; Brg1f/fmice). Pancreatic ductal cells (PDCs) were isolated from Arid1af/f mice and from Arid1af/f;SOX9OE mice, which overexpress human SOX9 upon infection with an adenovirus-expressing Cre recombinase. Pancreatic tissues were collected from all mice and analyzed by histology and immunohistochemistry; cells were isolated and grown in 2-dimensional and 3-dimensional cultures. We performed microarray analyses to compare gene expression patterns in intraductal papillary mucinous neoplasms (IPMNs) from the different strains of mice. We obtained 58 samples of IPMNs and 44 samples of PDACs from patients who underwent pancreatectomy in Japan and analyzed them by immunohistochemistry. Results Ptf1a-Cre;KrasG12D mice developed PanINs, whereas Ptf1a-Cre;KrasG12D;Arid1af/f mice developed IPMNs and PDACs; IPMNs originated from PDCs. ARID1A-deficient IPMNs did not express SOX9. ARID1A-deficient PDCs had reduced expression of SOX9 and dedifferentiated in culture. Overexpression of SOX9 in these cells allowed them to differentiate and prevented dilation of ducts. Among mice with pancreatic expression of activated Kras, those with disruption of Arid1a developed fewer PDACs from IPMNs than mice with disruption of Brg1. ARID1A-deficient IPMNs had reduced activity of the mTOR pathway. Human IPMN and PDAC specimens had reduced levels of ARID1A, SOX9, and phosphorylated S6 (a marker of mTOR pathway activation). Levels of ARID1A correlated with levels of SOX9 and phosphorylated S6. Conclusions ARID1A regulates expression of SOX9, activation of the mTOR pathway, and differentiation of PDCs. ARID1A inhibits formation of PDACs from IPMNs in mice with pancreatic expression of activated KRAS and is down-regulated in IPMN and PDAC tissues from patients.
- Published
- 2018
95. 'International consensus on definition and criteria of borderline resectable pancreatic ductal adenocarcinoma 2017': Will this pull us up out of the quagmire of confusing definitions and criteria?
- Author
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Kyoichi Takaori
- Subjects
medicine.medical_specialty ,Consensus ,Pancreatic ductal adenocarcinoma ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,MEDLINE ,Adenocarcinoma ,03 medical and health sciences ,Pancreatectomy ,0302 clinical medicine ,Borderline resectable ,medicine ,Carcinoma ,Humans ,Neoadjuvant therapy ,Hepatology ,business.industry ,General surgery ,Gastroenterology ,medicine.disease ,Neoadjuvant Therapy ,Pancreatic Neoplasms ,030220 oncology & carcinogenesis ,030211 gastroenterology & hepatology ,business ,Carcinoma, Pancreatic Ductal - Published
- 2018
96. Novel Image-guided Surgery of Gallbladder Cancer by Indocyanine Green Fluorescence Navigation
- Author
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Kojiro Taura, Etsuro Hatano, Rei Toda, Toshimi Kaido, Ken Fukumitsu, Shinji Uemoto, Takamichi Ishii, Kyoichi Takaori, Satoru Seo, Hiroto Nishino, and Takashi Nitta
- Subjects
medicine.medical_specialty ,Image-guided surgery ,Oncology ,business.industry ,Gastroenterology ,Medicine ,Surgery ,Radiology ,Gallbladder cancer ,business ,medicine.disease ,Indocyanine green fluorescence - Published
- 2018
97. Newsletter from the frontier of robotic surgery
- Author
-
Kyoichi Takaori
- Subjects
Frontier ,medicine.medical_specialty ,business.industry ,General surgery ,Medicine ,Robotic surgery ,business ,Surgery - Published
- 2009
98. [Untitled]
- Author
-
Yoshio KADOKAWA, Sanae NAKAJIMA, Atsushi KAWABE, Tsuyoshi YAMAMOTO, and Kyoichi TAKAORI
- Published
- 2009
99. Clinical importance of precursor lesions in the pancreas
- Author
-
Michael Goggins, Kieran Brune, Elliot K. Fishman, Kyoichi Takaori, Ralph H. Hruban, Marcia I. Canto, Scott E. Kern, and Kurtis A. Campbell
- Subjects
medicine.medical_specialty ,Pathology ,Hepatology ,Intraductal papillary mucinous neoplasm ,business.industry ,Pancreatic Intraepithelial Neoplasia ,Cancer ,medicine.disease ,Cystic Neoplasm ,Pancreatic Neoplasms ,medicine.anatomical_structure ,Surgical oncology ,Internal medicine ,Disease Progression ,medicine ,Carcinoma ,Humans ,Surgery ,Pancreas ,business ,Precancerous Conditions ,Carcinoma, Pancreatic Ductal - Abstract
Three distinct noninvasive precursor lesions to invasive ductal adenocarcinoma of the pancreas have been described. These include the mucinous cystic neoplasm, intraductal papillary mucinous neoplasm, and pancreatic intraepithelial neoplasia. The early detection and treatment of these lesions can interrupt the progression of a curable noninvasive precursor to an almost uniformly deadly invasive cancer.
- Published
- 2007
100. [Familial pancreatic cancer]
- Author
-
Kyoichi, Takaori
- Subjects
Male ,Pancreatic Neoplasms ,Risk Factors ,Humans ,Female - Published
- 2015
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