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171 results on '"Song, Sang Yun"'

3. Naïve CD8+ T cell derived tumor-specific cytotoxic effectors as a potential remedy for overcoming TGF-β immunosuppression in the tumor microenvironment

Author

Nguyen, Hong Hanh, Kim, Therasa, Song, Sang Yun, Park, Somang, Cho, Hyang Hee, Jung, Sung-Hoon, Ahn, Jae-Sook, Kim, Hyeoung-Joon, Lee, Je-Jung, Kim, Hee-Ok, Cho, Jae-Ho, and Yang, Deok-Hwan

Subjects
Biomedical and Clinical Sciences, Oncology and Carcinogenesis, Immunology, Vaccine Related, Immunization, Cancer, Animals, Apoptosis, Cell Line, Forkhead Transcription Factors, Humans, Immunologic Memory, Immunotherapy, Adoptive, Lymphocyte Activation, Lymphocytes, Tumor-Infiltrating, Mice, Neoplasms, Repressor Proteins, T-Lymphocytes, Cytotoxic, Transforming Growth Factor beta, Tumor Microenvironment
Abstract

Despite of the potential implications for cancer immunotherapy, conventional approaches using in vitro expanded CD8(+) T cells have suboptimal outcomes, mostly due to loss of functionality from cellular exhaustion. We therefore investigated the phenotypic and functional differences among in vitro activated CD8(+) T cells of three different sources, namely naïve (NTeff), memory (MTeff) and tumor-infiltrating lymphocytes (TILeff) from human and mice, to better understand mechanisms behind potent effector functions and potential for overcoming current limitations. In line with the greater proliferation activity and longer telomere lengths of NTeff populations, cells of naïve origin exhibited significantly less amounts of T cell exhaustion markers than those of MTeff and TILeff, and moreover, acquired distinct expression patterns of memory-promoting transcription factors, T-bet and Eomes, induced in a rapid and sustainable manner. NTeff cells appeared to have lower expression of Foxp1 and were refractory to apoptosis upon TGF-β conditioning, implying better survival potential and resistance to tumor-induced immune suppression. Of CD8(+) T cell pools activated to tumor-specific CTLs, naïve cell generated effectors possessed the most potent cytotoxic activity, validating implications for use in rational design of adoptive immunotherapy.

Published
2016

6. Genetic Alterations and Risk Factors for Recurrence in Patients with Non-Small Cell Lung Cancer Who Underwent Complete Surgical Resection.

Author

Park, Hwa Kyung, Choi, Yoo Duk, Yun, Ju-Sik, Song, Sang-Yun, Na, Kook-Joo, Yoon, Joon Young, Yoon, Chang-Seok, Oh, Hyung-Joo, Kim, Young-Chul, and Oh, In-Jae

Subjects
LUNG cancer, ADENOCARCINOMA, EPITHELIAL cell tumors, GENETIC mutation, CONFIDENCE intervals, EPIDERMAL growth factor receptors, ONCOGENES, CANCER relapse, RETROSPECTIVE studies, ACQUISITION of data, CANCER patients, RISK assessment, COMPARATIVE studies, MEDICAL records, DESCRIPTIVE statistics, RESEARCH funding, DISEASE risk factors, DISEASE complications
Abstract

Simple Summary: We investigated the prevalence of genetic alterations and their association with epidermal growth factor receptor (EGFR) mutations and prognosis in early-stage non-small cell lung cancer (NSCLC) after curative resection. The results showed that the prevalence of EGFR mutations, anaplastic lymphoma kinase (ALK) rearrangements, and ROS proto-oncogene 1 (ROS1) fusion were 43.0%, 5.7%, and 1.6%, respectively. Patients with EGFR-mutant NSCLC had a higher risk of recurrence than those without EGFR mutations. Additionally, EGFR mutations were related to a high proportion of distant metastases and a higher risk of central nervous system recurrence. A definitive surgical resection is the preferred treatment for early-stage non-small cell lung cancer (NSCLC). Research on genetic alterations, including epidermal growth factor receptor (EGFR) mutations, in early-stage NSCLC remains insufficient. We investigated the prevalence of genetic alterations in early-stage NSCLC and the association between EGFR mutations and recurrence after a complete resection. Between January 2019 and December 2021, 659 patients with NSCLC who underwent curative surgical resections at a single regional cancer center in Korea were recruited. We retrospectively compared the clinical and pathological data between the recurrence and non-recurrence groups. Among the 659 enrolled cases, the median age was 65.86 years old and the most common histology was adenocarcinoma (74.5%), followed by squamous cell carcinoma (21.7%). The prevalence of EGFR mutations was 43% (194/451). Among them, L858R point mutations and exon 19 deletions were 52.3% and 42%, respectively. Anaplastic lymphoma kinase (ALK) rearrangement was found in 5.7% of patients (26/453) and ROS proto-oncogene 1 (ROS1) fusion was found in 1.6% (7/441). The recurrence rate for the entire population was 19.7%. In the multivariate analysis, the presence of EGFR mutations (hazard ratio (HR): 2.698; 95% CI: 1.458–4.993; p = 0.002), stage II (HR: 2.614; 95% CI: 1.29–5.295; p = 0.008) or III disease (HR: 9.537; 95% CI: 4.825–18.852; p < 0.001) (vs. stage I disease), and the presence of a pathologic solid type (HR: 2.598; 95% CI: 1.405–4.803; p = 0.002) were associated with recurrence. Among the recurrence group, 86.5% of the patients with EGFR mutations experienced distant metastases compared with only 66.7% of the wild type (p = 0.016), with no significant difference in median disease-free survival (52.21 months vs. not reached; p = 0.983). In conclusion, adjuvant or neoadjuvant targeted therapy could be considered more actively because EGFR mutations were identified as an independent risk factor for recurrence and were associated with systemic recurrence. Further studies on perioperative therapy for other genetic alterations are necessary. [ABSTRACT FROM AUTHOR]

Published
2023
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14. Prognostic significance of location index in resected T1-sized early-stage non-small cell lung cancer.

Author

Kang, Seung Wan, Jeong, Won Gi, Lee, Jong Eun, Oh, In-Jae, Song, Sang Yun, Lee, Byung Chan, and Kim, Yun-Hyeon

Subjects
NON-small-cell lung carcinoma, CANCER prognosis, TERTIARY care, CANCER relapse, ADVERSE health care events, CONFIDENCE intervals
Abstract

Background: While the central location is a known adverse prognostic factor in lung cancer, a precise definition of central lung cancer has not yet emerged. Purpose: To determine the prognostic significance of central lung cancer (defined by location index) in resected T1-sized early-stage non-small cell lung cancer (NSCLC). Material and Methods: Patients with resected T1-sized early-stage NSCLC between 2010 and 2015 at a single tertiary cancer center were retrospectively reviewed. Central lung cancer was defined by a location index of the second tertile or less. Kaplan–Meier analysis with log-rank test and multivariable Cox regression analysis were performed to analyze the relationship between central lung cancer and the prognosis of relapse-free survival (RFS) and overall survival (OS). Inter-observer agreement was assessed using Cohen's kappa value and intraclass correlation coefficient (ICC). Results: Overall, 289 patients (169 men; median age 65 years; interquartile range 58–70 years) were evaluated. Central lung cancer (defined by location index) was adversely associated with RFS (P = 0.005) and OS (P = 0.01). Multivariable Cox regression analysis showed that central lung cancer was independently associated with poor RFS (adjusted hazard ratio 1.91; 95% confidence interval [CI] 1.12–3.24; P = 0.017) and OS (adjusted hazard ratio 1.69; 95% CI 1.04–2.74; P = 0.033). Location index demonstrated excellent inter-observer agreement (Cohen's kappa value 0.88; 95% CI 0.82–0.93) with a high ICC (0.98; 95% CI 0.97–0.98). Conclusion: Central lung cancer defined by a location index of the second tertile or lower is an independent adverse prognostic factor in resected T1-sized early-stage NSCLC. [ABSTRACT FROM AUTHOR]

Published
2023
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17. Diagnostic Accuracy and Prognostic Relevance of Immunoglobulin Heavy Chain Rearrangement and 18F-FDG-PET/CT Compared With Unilateral Bone Marrow Trephination for Detecting Bone Marrow Involvement in Patients With Diffuse Large B-Cell Lymphoma

Author

Kim, Mihee, primary, Ahn, Seo-Yeon, additional, Ahn, Jae-Sook, additional, Song, Ga-Young, additional, Jung, Sung-Hoon, additional, Lee, Je-Jung, additional, Kim, Hyeoung-Joon, additional, Lee, Jun Hyung, additional, Shin, Myung-Geun, additional, Song, Sang Yun, additional, and Yang, Deok-Hwan, additional

Published
2022
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18. Mediastinal Teratoma: A Pictorial Essay

Author

Kim, Sang Gyun, primary, Jeong, Won Gi, additional, Song, Sang Yun, additional, Lee, Taebum, additional, Lee, Jong Eun, additional, Park, Hye Mi, additional, and Kim, Yun-Hyeon, additional

Published
2022
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24. Diagnostic accuracy and prognostic relevance of immunoglobulin heavy chain rearrangement and 18 F-FDG- PET/CT compared with unilateral bone marrow trephination for detecting bone marrow involvement in patients with diffuse large B-cell lymphoma

Author

Kim, Mihee, primary, Ahn, Seo-Yeon, additional, Ahn, Jae-Sook, additional, Song, Ga-Young, additional, Jung, Sung-Hoon, additional, Lee, Je-Jung, additional, Kim, Hyeoung-Joon, additional, Lee, Jun Hyung, additional, Shin, Myung-Geun, additional, Song, Sang Yun, additional, and Yang, Deok-Hwan, additional

Published
2021
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26. Artificial intelligence and lung cancer treatment decision: agreement with recommendation of multidisciplinary tumor board

Author

Kim, Min-Seok, primary, Park, Ha-Young, additional, Kho, Bo-Gun, additional, Park, Cheol-Kyu, additional, Oh, In-Jae, additional, Kim, Young-Chul, additional, Kim, Seok, additional, Yun, Ju-Sik, additional, Song, Sang-Yun, additional, Na, Kook-Joo, additional, Jeong, Jae-Uk, additional, Yoon, Mee Sun, additional, Ahn, Sung-Ja, additional, Yoo, Su Woong, additional, Kang, Sae-Ryung, additional, Kwon, Seong Young, additional, Bom, Hee-Seung, additional, Jang, Woo-Youl, additional, Kim, In-Young, additional, Lee, Jong-Eun, additional, Jeong, Won-Gi, additional, Kim, Yun-Hyeon, additional, Lee, Taebum, additional, and Choi, Yoo-Duk, additional

Published
2020
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30. Primary pulmonary myxoid sarcoma located in interlobar fissure without parenchymal invasion

Author

Kim, Seok, Song, Sang Yun, Yun, Ju Sik, Choi, Yoo Duk, and Na, Kook Joo

Subjects
thoracoscopy/VATS, pulmonary, Myxoid sarcoma, Case Report, Case Reports
Abstract

Primary pulmonary myxoid sarcoma (PPMS), classified as low to intermediate grade malignant myxoid endobronchial tumor, is rarely reported. Most reported cases occurred in lung parenchyme with an endobronchial component. Herein, we report a case of PPMS in a 29‐year‐old woman that developed in a major fissure of the left lung without parenchymal invasion. Histopathologically, the diagnosis was compatible to PPMS with EWSR1‐CREB1 translocation.

Published
2017

32. Laparoscopic repair of hiatal hernia

Author

Yun, Ju Sik, primary, Na, Kook Joo, additional, Song, Sang Yun, additional, Kim, Seok, additional, Kim, Eunchong, additional, Jeong, In Seok, additional, and Oh, Sang Gi, additional

Published
2019
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38. A national survey of lung cancer specialists’ views on low-dose CT screening for lung cancer in Korea

Author

Shin, Dong Wook, primary, Chun, Sohyun, additional, Kim, Young Il, additional, Kim, Seung Joon, additional, Kim, Jung Soo, additional, Chong, SeMin, additional, Park, Young Sik, additional, Song, Sang-Yun, additional, Lee, Jin Han, additional, Ahn, Hee Kyung, additional, Kim, Eun Young, additional, Yang, Sei Hoon, additional, Lee, Myoung Kyu, additional, Cho, Deog Gon, additional, Jang, Tae Won, additional, Son, Ji Woong, additional, Ryu, Jeong-Seon, additional, and Cho, Moon-June, additional

Published
2018
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48. Lung cancer specialist physicians’ attitudes towards e-cigarettes: A nationwide survey

Author

Shin, Dong Wook, primary, Kim, Young Il, additional, Kim, Seung Joon, additional, Kim, Jung Soo, additional, Chong, SeMin, additional, Park, Young Sik, additional, Song, Sang-Yun, additional, Lee, Jin Han, additional, Ahn, Hee Kyung, additional, Kim, Eun Young, additional, Yang, Sei Hoon, additional, Lee, Myoung Kyu, additional, Cho, Deog Gon, additional, Jang, Tae Won, additional, Son, Ji Woong, additional, Ryu, Jeong-Seon, additional, and Cho, Moon-June, additional

Published
2017
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49. Nosocomial Infection in Adult Patients Undergoing Veno-Arterial Extracorporeal Membrane Oxygenation

Author

Kim, Gwan Sic, primary, Lee, Kyo Seon, additional, Park, Choung Kyu, additional, Kang, Seung Ku, additional, Kim, Do Wan, additional, Oh, Sang Gi, additional, Oh, Bong-Suk, additional, Jung, Yochun, additional, Kim, Seok, additional, Yun, Ju Sik, additional, Song, Sang Yun, additional, Na, Kook Joo, additional, Jeong, In Seok, additional, and Ahn, Byoung Hee, additional

Published
2017
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50. P3.02b-112 Feasibility of Re-Biopsy in Patients with Non-Small Cell Lung Cancer after Failure of Epidermal Growth Factor Receptor Targeted Therapy

Author

Choi, Yoo-Duk, primary, Kim, Tae-Ok, additional, Seo, Hyeong-Won, additional, Ahn, Sung, additional, Jang, Jin-Sun, additional, Park, Cheol-Kyu, additional, Kim, Young-Chul, additional, Yun, Ju-Sik, additional, Song, Sang-Yun, additional, Na, Kook-Joo, additional, Yoon, Mee-Sun, additional, Ahn, Sung-Ja, additional, Seon, Hyun-Ju, additional, Kwon, Seong Young, additional, and Oh, In-Jae, additional

Published
2017
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