85 results on '"Xuechun Lu"'
Search Results
2. Incidence rate and risk factors of second primary neoplasms among older patients with hematological malignancies: Insights from a Chinese single-center experience (1997–2021)
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Yadi Zhong, Bing Zhai, Jing Zeng, Bo Yang, Bo Guo, and Xuechun Lu
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Hematological malignancies ,Second primary neoplasms ,Older ,Incidence ,Risk factors ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Background: Patients with hematological malignancies face an increased risk of developing second primary neoplasms due to various factors, including immune system compromise and chemotherapy-related effects. However, the incidence and associated risk factors in older patients remain poorly understood. This study aimed to assess the incidence, identify risk factors, and evaluate their impact on survival outcomes among older patients with hematological malignancies. Methods: This retrospective single-center study analyzed data from 163 patients, focusing on the occurrence of second primary neoplasms. Cumulative incidence rates were calculated, and risk factor analysis was conducted using a competing risk model. Results: Among 124 eligible patients with a total follow-up duration of 572.57 person-years, the incidence rate of second primary neoplasms was 15.72/1000 person-years. The standardized incidence ratio (SIR) was 0.81 (95% confidence interval [CI] [0.39–1.48], P = 0.518). History of radiotherapy emerged as a significant risk factor (sub-distribution hazard ratio [SHR] = 21.61 [2.81–166.14], P = 0.003), whereas regular natural killer (NK) cell infusion was associated with reduced risk (SHR = 3.25 e−8 [9.81 e−9–1.08 e−7], P < 0.001). Conclusions: These findings underscore the importance of informing older patients with hematological malignancies about the long-term risks of second primary neoplasms. Healthcare providers should carefully weigh risk factors when formulating treatment strategies. The results are valuable for investigating the fundamental principles underlying the occurrence and progression of second primary neoplasms.
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- 2024
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3. Clotrimazole inhibits growth of multiple myeloma cells in vitro via G0/G1 arrest and mitochondrial apoptosis
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Yang Song, Hui Zhang, Jie Geng, Haoran Chen, Yang Bo, and Xuechun Lu
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Clotrimazole ,Multiple myeloma ,Cell cycle ,Reactive oxygen species ,Apoptosis ,Medicine ,Science - Abstract
Abstract Patients with multiple myeloma (MM) experience relapse and drug resistance; therefore, novel treatments are essential. Clotrimazole (CTZ) is a wide-spectrum antifungal drug with antitumor activity. However, CTZ’s effects on MM are unclear. We investigated CTZ’s effect on MM cell proliferation and apoptosis induction mechanisms. CTZ’s effects on MM.1S, NCI- H929, KMS-11, and U266 cell growth were investigated using Cell Counting Kit-8 (CCK-8) assay. The apoptotic cell percentage was quantified with annexin V-fluorescein isothiocyanate/7-amino actinomycin D staining. Mitochondrial membrane potential (MMP) and cell cycle progression were evaluated. Reactive oxygen species (ROS) levels were measured via fluorescence microscopy. Expression of apoptosis-related and nuclear factor (NF)-κB signaling proteins was analyzed using western blotting. The CCK-8 assay indicated that CTZ inhibited cell proliferation based on both dose and exposure time. Flow cytometry revealed that CTZ decreased apoptosis and MMP and induced G0/G1 arrest. Immunofluorescence demonstrated that CTZ dose-dependently elevated in both total and mitochondrial ROS production. Western blotting showed that CTZ enhanced Bax and cleaved poly ADP-ribose polymerase and caspase-3 while decreasing Bcl-2, p-p65, and p-IκBα. Therefore, CTZ inhibits MM cell proliferation by promoting ROS-mediated mitochondrial apoptosis, inducing G0/G1 arrest, inhibiting the NF-κB pathway, and has the potential for treating MM.
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- 2024
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4. Multi role ChatGPT framework for transforming medical data analysis
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Haoran Chen, Shengxiao Zhang, Lizhong Zhang, Jie Geng, Jinqi Lu, Chuandong Hou, Peifeng He, and Xuechun Lu
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ChatGPT ,Automation ,Bioinformatics ,Transcriptome ,Medicine ,Science - Abstract
Abstract The application of ChatGPTin the medical field has sparked debate regarding its accuracy. To address this issue, we present a Multi-Role ChatGPT Framework (MRCF), designed to improve ChatGPT's performance in medical data analysis by optimizing prompt words, integrating real-world data, and implementing quality control protocols. Compared to the singular ChatGPT model, MRCF significantly outperforms traditional manual analysis in interpreting medical data, exhibiting fewer random errors, higher accuracy, and better identification of incorrect information. Notably, MRCF is over 600 times more time-efficient than conventional manual annotation methods and costs only one-tenth as much. Leveraging MRCF, we have established two user-friendly databases for efficient and straightforward drug repositioning analysis. This research not only enhances the accuracy and efficiency of ChatGPT in medical data science applications but also offers valuable insights for data analysis models across various professional domains.
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- 2024
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5. Establishing and applying an adaptive framework for imported malaria: a field practice in Anhui Province, China from 2012 to 2022
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Tao Zhang, Xian Xu, Bowen Liu, Duoquan Wang, Xiangguang Ye, Jingjing Jiang, Shuqi Wang, Xiaofeng Lyu, Chen Yu, Cuicui Tian, Zijian Liu, Xuechun Lu, Shizhu Li, and Weidong Li
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Imported malaria ,Prevention of re-establishment of malaria ,Strategy ,Framework ,Anhui Province ,China ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Anhui Province is currently facing an increase in imported malaria cases as a result of globalization and international travel. In response, Anhui Province has implemented a comprehensive adaptive framework to effectively address this threat. Methods This study collected surveillance data from 2012 to 2022 in Anhui Province. Descriptive statistics were used to analyze the epidemiological characteristics of imported malaria cases. Additionally, multivariate logistic regression was employed to identify factors associated with severe malaria. Documents were reviewed to document the evolution of the adaptive framework designed to combat imported malaria. The effectiveness of the adaptive framework was evaluated based on the rates of timely medical visits, timely diagnosis, and species identification. Results During the study period, a total of 1008 imported malaria cases were reported across 77 out of 105 counties in Anhui Province, representing a coverage of 73.33%. It was found that 10.52% of imported cases went undiagnosed for more than seven days after onset. The multivariate analysis revealed several potential risk factors for severe malaria, including increasing age (OR = 1.049, 95%CI:1.015–1.083), occupation (waitperson vs. worker, OR = 2.698, 95%CI:1.054–6.906), a longer time interval between onset and the initial medical visit (OR = 1.061, 95%CI:1.011–1.114), and misdiagnosis during the first medical visit (OR = 5.167, 95%CI:2.535–10.533). Following the implementation of the adaptive framework, the rates of timely medical visits, timely diagnosis, and species identification reached 100.00%, 78.57%, and 100.00%, respectively. Conclusions Anhui Province has successfully developed and implemented an adaptive framework for addressing imported malaria, focusing on robust surveillance, prompt diagnosis, and standardized treatment. The experiences gained from this initiative can serve as a valuable reference for other non-endemic areas.
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- 2024
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6. Association of thrombocytopenia with immune checkpoint inhibitors: a large-scale pharmacovigilance analysis based on the data from FDA adverse event reporting system database
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Geliang Liu, Shuxian Zhang, Zhuang Mo, Tai Huang, Qi Yu, Xuechun Lu, and Peifeng He
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immune checkpoint inhibitors ,immune thrombocytopenia ,immune-related adverse events ,FAERS ,TCGA ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Introduction: An increasing number of immune-related adverse events (irAEs) induced by immune checkpoint inhibitors (ICIs) have been reported during clinical treatment. We aimed to explore the clinical characteristics of patients with ICIs-induced ITP under different therapeutic strategies based on the FAERS database and explore the potential biological mechanisms in combination with TCGA pan-cancer data.Methods: Data from FAERS were collected for ICIs adverse reactions between January 2012 and December 2022. Disproportionality analysis identified ICIs-induced ITP in the FAERS database using the reporting odds ratio (ROR), proportional reporting ratio (PRP), Bayesian confidence propagation neural network (BCPNN), and multi-item gamma Poisson shrinker algorithms (MGPS). The potential biological mechanisms underlying ITP induced by ICIs were examined using TCGA transcriptome data on cancers.Results: In the FAERS, 345 ICIs-induced ITP reports were retrieved, wherein 290 (84.06%) and 55 (15.94%) were reported as monotherapy and combination therapy, respectively. The median age of the reported patients with ICIs-induced ITP was 69 years (IQR 60-76), of which 62 (18%) died and 47 (13.6%) had a life-threatening outcome. The majority of reported indications were lung, skin, and bladder cancers, and the median time to ITP after dosing was 42 days (IQR 17-135), with 64 patients (43.5%) experiencing ITP within 30 days of dosing and 88 patients experiencing ITP in less than 2 months (59.9%). The occurrence of ICIs-induced ITP may be associated with ICIs-induced dysregulation of the mTORC1 signaling pathway and megakaryocyte dysfunction.Conclusion: There were significant reporting signals for ITP with nivolumab, pembrolizumab, cemiplimab, atezolizumab, avelumab, durvalumab, ipilimumab, nivolumab/ipilimumab, and pembrolizumab/ipilimumab. Patients treated with anti-PD-1 in combination with anti-CTLA-4 are more likely to have an increased risk of ICIs-induced ITP. Patients with melanoma are at a higher risk of developing ITP when treated with ICI and should be closely monitored for this risk within 60 days of treatment. The potential biological mechanism of ICIs-induced ITP may be related to the dysfunction of megakaryocyte autophagy through the overactivation of the mTOR-related signaling pathway. This study provides a comprehensive understanding of ICIs-induced ITP. Clinicians should pay attention to this potentially fatal adverse reaction.
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- 2024
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7. Two cases on primary bone marrow lymphoma
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Zining Wang, Lu Sun, Yue Wang, Haoran Chen, Hongbin Pu, Bo Yang, and Xuechun Lu
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Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Published
- 2024
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8. Impact of immunosenescence and inflammaging on the effects of immune checkpoint inhibitors
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Chuandong Hou, Zining Wang, and Xuechun Lu
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Immunosenescence ,Inflammaging ,Immune checkpoint inhibitor ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Immune checkpoint inhibitors (ICIs) are employed in immunotherapeutic applications for patients with weakened immune systems and can improve the ability of T cells to kill cancer cells. Although ICIs can potentially treat different types of cancers in various groups of patients, their effectiveness may differ among older individuals. The reason ICIs are less effective in older adults is not yet clearly understood, but age-related changes in the immune system, such as immunosenescence and inflammation, may play a role. Therefore, this review focuses on recent advances in understanding the effects of immunosenescence and inflammation on the efficacy of ICIs.
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- 2024
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9. Kidney Transplantation and Clinical Outcomes in Patients With Multiple Myeloma: Evidence From the United States Nationwide Inpatient Sample
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Bo Yang, Lijuan Zhang, and Xuechun Lu
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end-stage renal disease ,chronic kidney disease ,multiple myeloma ,kidney transplantation ,nationwide inpatient sample ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Purpose Patients with multiple myeloma (MM) are prone to developing persistent renal insufficiency. Novel therapeutic medications have improved long-term survival, making kidney transplantation (KT) a viable treatment option for MM survivors with end-stage renal disease. This study aimed to investigate the clinical outcomes in patients with MM who have received KT. Methods Data from hospitalized patients ≥ 40 years of age with MM in the Nationwide Inpatient Sample 2016–2018 of the United States were queried. Patients were classified as having or not having undergone KT, as well as the stage of chronic kidney disease (CKD) for those who had not received KT. Propensity-score matching (PSM) was applied to balance the characteristics between the groups. Binary logistic regression was utilized to determine the associations between study variables and inhospital mortality, unfavorable discharges, prolonged length of stay (LOS), and major complications. Results In total, 50,654 hospitalized patients with MM were identified, of whom 165 (0.3%) had received KT and 50,489 had not (5,905 at stage 5 CKD [CKD5D], 11,559 at stage 1–4 CKD [CKD1-4D], and 33,025 who were CKD-free). After PSM, between-group demographic and hospital-related characteristics were balanced. Binary regression analysis revealed that, compared to patients who were CKD-free, patients at CKD5D were significantly more likely to experience a prolonged LOS (odds ratio [OR], 1.31; 95% confidence interval [CI], 1.01–1.70) after adjusting for relevant confounders. Furthermore, compared to CKD-free patients, those who underwent KT were significantly more likely to have sepsis (OR, 1.48; 95% CI, 1.02–2.14). However, KT showed no association with the other adverse inpatient outcomes. Conclusions Although KT is not common in MM patients, those who had undergone KT had comparable hospital outcomes to CKD-free patients. These data will help clinicians deliver better consultations to MM patients attempting to receive KT.
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- 2023
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10. A case of diffuse large B-cell lymphoma with interstitial pneumonia
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Ge Song, Changxi Zhou, Shuxia Wang, Tianqi Tao, Weiping Guan, Xuan Wu, Ping Zhu, Bo Yang, and Xuechun Lu
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Diffuse large B-cell lymphoma ,Interstitial pneumonia ,Rituximab ,Doxorubicin liposomes ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
This report involves a 54-year-old female patient diagnosed with diffuse large B-cell lymphoma who developed interstitial pneumonia (IP) during treatment. The patient presented to the ward with enlarged lymph nodes in the neck and was treated with the standard regimen, which included rituximab, cyclophosphamide, doxorubicin liposomes, vincristine, and prednisone (R-CDOP regimen). After 3 cycles, the treatment was assessed as effective. However, following the 4th cycle, the patient experience shortness of breath after physical activity. A repeat lung computer tomography indicated IP, which completely recovered after receiving “full coverage” treatment. Subsequently, the patient underwent 2 cycles of cyclophosphamide, doxorubicin liposomes, vincristine, and prednisone (CDOP), followed by local radiotherapy. Currently, the patient is now being followed up with regular reviews.
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- 2023
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11. Effect of Methylprednisolone on Mortality and Clinical Courses in Patients with Severe COVID-19: A Propensity Score Matching Analysis
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Xiaoyan Li, Xin Yuan, Zhe Xu, Lei Shi, Lei Huang, Xuechun Lu, Junliang Fu, and Haijuan Wang
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Infectious and parasitic diseases ,RC109-216 - Abstract
Abstract. Background. Whether methylprednisolone therapy can reduce the mortality rate of patients with severe coronavirus disease 2019 (COVID-19) remains controversial, and its effects on the length of hospital stay and virus shedding time are also unknown. This retrospective study investigates the previous issues to provide more evidence for methylprednisolone treatment in severe COVID-19. Methods. This retrospective study included 563 of 4827 patients with confirmed COVID-19 admitted to Wuhan Huoshenshan Hospital or Wuhan Guanggu Hospital between February 3, 2020 and March 30, 2020 who met the screening criteria. The participants’ epidemiological and demographic data, comorbidities, laboratory test results, treatments, outcomes, and vital clinical time points were extracted from electronic medical records. The primary outcome was in-hospital death, and the secondary outcomes were 2 clinical courses: length from admission to viral clearance and discharge. Univariate and multivariate logistic or linear regression analyses were used to assess the role of methylprednisolone in different outcomes. Propensity score matching was performed to control for confounding factors. Results. Of the 563 patients who met the screening criteria and were included in the subsequent analysis, 138 were included in the methylprednisolone group and 425 in the nonmethylprednisolone group. The in-hospital death rate between the methylprednisolone and nonmethylprednisolone groups showed a significant difference (23.91% vs. 1.65%, P < 0.001), which was maintained after propensity score matching (13.98% vs. 5.38%, P = 0.048). However, univariate logistic analysis in the matched groups showed that methylprednisolone treatment (odds ratio [OR], 5.242; 95% confidence interval [CI], 0.802 to 34.246; P = 0.084) was not a risk factor for in-hospital death in severe patients. Further multivariate logistic regression analysis found comorbidities (OR, 3.327; 95% CI, 1.702 to 6.501; P < 0.001), lower lymphocyte count (OR, 0.076; 95% CI, 0.012 to 0.461; P = 0.005), higher lactate dehydrogenase (LDH) levels (OR, 1.008; 95% CI, 1.003 to 1.013; P = 0.002), and anticoagulation therapy (OR, 11.187; 95% CI, 2.459 to 50.900; P = 0.002) were associated with in-hospital mortality. Multivariate linear regression analysis in the matched groups showed that methylprednisolone treatment was not a risk factor for a prolonged duration from admission to viral clearance (β Value 0.081; 95% CI, −1.012 to 3.657; P = 0.265) or discharge (β Value 0.114; 95% CI, −0.723 to 6.408; P = 0.117). d-dimer (β Value, 0.144; 95% CI, 0.012 to 0.817; P = 0.044), LDH (β Value 0.260; 95% CI, 0.010 to 0.034; P < 0.001), and antiviral therapy (β Value 0.220; 95% CI, 1.373 to 6.263; P = 0.002) were associated with a longer length from admission to viral clearance. The lymphocyte count (β Value −0.206; 95% CI, −6.248 to −1.197; P = 0.004), LDH (β Value 0.231; 95% CI, 0.012 to 0.048; P = 0.001), antiviral therapy (β Value 0.143; 95% CI, 0.058 to 7.497; P = 0.047), and antibacterial therapy (β Value 0.152; 95% CI, 0.133 to 8.154; P = 0.043) were associated with a longer hospitalization duration from admission to discharge. Further stratified analysis revealed that the low daily dose group (≤60 mg/d) and the low total dose group (≤200 mg) had shorter duration from admission to viral clearance (Z=−2.362, P = 0.018; Z=−2.010, P = 0.044) and a shorter hospital stay (Z=−2.735, P = 0.006; Z=−3.858, P < 0.001). Conclusions. In patients with severe COVID-19, methylprednisolone is safe and does not prolong the duration from admission to viral clearance or discharge. Low-dose, short-term methylprednisolone treatment may be more beneficial in shortening the disease course.
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- 2023
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12. Effect of methylprednisolone therapy on hospital stay and viral clearance in patients with moderate COVID-19
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Xiaoyan Li, Xin Yuan, Zhe Xu, Lei Huang, Lei Shi, Xuechun Lu, Fu-Sheng Wang, and Junliang Fu
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COVID-19 ,Hospital stay ,In-hospital death ,Moderate ,Viral clearance ,Infectious and parasitic diseases ,RC109-216 - Abstract
Background: The benefits and harms of methylprednisolone treatment in patients with moderate coronavirus disease 2019 (COVID-19) remain controversial. In this study, we investigated the effect of methylprednisolone on mortality rate, viral clearance, and hospitalization stay in patients with moderate COVID-19. Methods: This retrospective study included 4827 patients admitted to Wuhan Huoshenshan and Wuhan Guanggu hospitals from February to March 2020 diagnosed with COVID-19 pneumonia. The participants’ epidemiological and demographic data, comorbidities, laboratory test results, treatments, outcomes, and vital clinical time points were extracted from electronic medical records. The primary outcome was in-hospital death; secondary outcomes were time from admission to viral clearance and hospital stay. Univariate and multivariate logistic or linear regression analysis were used to assess the roles of methylprednisolone in different outcomes. The propensity score matching (PSM) method was used to control for confounding factors. Results: A total of 1320 patients were included in this study, of whom 100 received methylprednisolone. Overall, in-hospital mortality was 0.91% (12/1320); the 12 patients who died were all in the methylprednisolone group, though multivariate logistic regression analysis showed methylprednisolone treatment was not a risk factor for in-hospital death in moderate patients before or after adjustment for confounders by PSM. Methylprednisolone treatment was correlated with longer length from admission to viral clearance time and hospital stay before and after adjustment for confounders. Conclusions: Methylprednisolone therapy was not associated with increased in-hospital mortality but with delayed viral clearance and extended hospital stay in moderate COVID-19 patients.
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- 2022
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13. Combination of two target agonists of the thrombopoietin and thrombopoietin receptor in the treatment of elderly patients with refractory immune thrombocytopenia
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Jundong Zhang, Zining Wang, Haoran Chen, and Xuechun Lu
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Immune thrombocytopenia (ITP) ,TPO-MPL signaling Pathway ,rh-TPO ,Eltrombopag ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Immune thrombocytopenia (ITP) is common in the elderly. Because of the coexistence of multiple diseases, there are many reservations regarding corticosteroid use in the elderly. Thrombopoietin (TPO) and its analogs can promote platelet production, but it is often difficult to correct TP in a short period. Recombinant human TPO (rh-TPO) acting on the cell membrane and the small-molecule TPO-receptor (MPL) agonist acting on the transmembrane receptor may have synergistic effects and accelerate platelet production because of different sites of action in the signaling pathway. In this study, two elderly patients with refractory ITP were successfully treated with two TPO-MPL signaling pathway agonists: recombinant human thrombopoietin (rh-TPO) and eltrombopag. This combination is safe with rapid and lasting effects. However, in elderly patients with refractory, recurrent, and glucocorticoid contraindications, the combination of different TPO agonists' clinical efficacy and adverse reactions needs to be further evaluated.
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- 2023
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14. Identification of immunity-related lncRNAs and construction of a ceRNA network of potential prognostic biomarkers in acute myeloid leukemia
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Jia Xue, Haoran Chen, Jinqi Lu, Haojun Zhang, Jie Geng, Peifeng He, and Xuechun Lu
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acute myeloid leukemia ,competing endogenous RNA ,prognostic model ,immunity-related biomarker ,bioinformatics ,Genetics ,QH426-470 - Abstract
Objective: Using bioinformatics analyses, this study aimed to identify lncRNAs related to the immune status of acute myeloid leukemia (AML) patients and ascertain the potential impact in immunity-related competing endogenous RNA (ceRNA) networks on AML prognosis.Methods: AML-related RNA-seq FPKM data, AML-related miRNA expression microarray data, and gene sets associated with immunity-related pathways were, respectively, obtained from the TCGA, GEO, and ImmReg databases. An immunity-related ceRNA network was then constructed according to the predicted interactions between AML-related mRNAs, lncRNAs, and miRNAs. After performing LASSO and multivariate Cox regression analyses, lncRNAs in the ceRNA network were used to establish an AML prognostic model. According to mutual regulatory relationships and consistent trends of expression among candidate ceRNAs, two ceRNA subnetworks related to the AML prognostic model were determined. Finally, the correlation between the expression levels of mRNAs, lncRNAs, and miRNAs in each ceRNA subnetwork and immune cell infiltration (assessed by combining the ESTIMATE and CIBERSORT methods and ssGSEA) was analyzed.Results: A total of 424 immunity-related differentially expressed (IR-DE) mRNAs (IR-DEmRNAs), 191 IR-DElncRNAs, and 69 IR-DEmiRNAs were obtained, and a ceRNA network of 20 IR-DElncRNAs, 6 IR-DEmRNAs, and 3 IR-DEmiRNAs was established. Univariate Cox regression analysis was conducted on 20 IR-DElncRNAs, and 7 of these were identified to be significantly correlated with the overall survival (OS) time in AML patients. Then, two IR-DElncRNAs (MEG3 and HCP5) were screened as independent OS-related factors by LASSO and multivariable Cox regression analyses, and a prognostic model was constructed to evaluate the survival risk in AML patients. Survival analyses indicated that the OS of patients was often poor in the high-risk group. Additionally, from this model, two ceRNA regulatory pathways, namely, MEG3/miR-125a-5p/SEMA4C and HCP5/miR-125b-5p/IL6R, which were potentially involved in the immune regulation of AML prognosis were identified.Conclusion: lncRNAs HCP5 and MEG3 may act as key ceRNAs in the pathogenesis in AML by regulating immune cell representation as part of the regulatory lncRNA-miRNA-mRNA axes. The candidate mRNAs, lncRNAs, and miRNAs included in the ceRNA network identified here may serve as useful prognostic biomarkers and immunotherapeutic targets for AML.
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- 2023
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15. Research Progress on Distribution, Forms and Preparation Methods of Ferulic Acid in Wheat
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Wei SONG, Jiaying XIN, Xuechun LU, Jinghong XIAO, and Yue LI
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wheat ,ferulic acid ,distribution ,form of existence ,wheat bran ,preparation ,Food processing and manufacture ,TP368-456 - Abstract
Ferulic acid is a beneficial human health phenolic acid that reduces the risk of serious diseases such as diabetes, cholesterol, heart disease and cancer. Ferulic acid is the highest content phenolic acid in wheat, mainly concentrated in wheat bran. With the improvement of people’s awareness of health care, the preparation and function of ferulic acid in wheat bran have been paid more and more attention. The methods of preparing ferulic acid from wheat bran generally include alkaline hydrolysis, biological enzyme and biological fermentation, and many studies have assisted the above preparation methods by physical means, such as ultrasonic and high temperature steam, etc. In this paper, the distribution and form of ferulic acid in wheat and the method of preparing ferulic acid from wheat bran are summarized, and the advantages and disadvantages of the method of preparing ferulic acid from wheat bran are analyzed, so as to provide some references and ideas for the development, research and industrial production of ferulic acid in wheat bran.
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- 2022
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16. Effects of Agaricus blazei acidic polysaccharide on the aging of mice through keap1-Nrf2/ARE and MAPKs signal pathway
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Xiao Guo, Yujie Ye, Xinzhu Liu, Yu Sheng, Ying Yu, Yingying Yang, Mingliu Gu, Rui Lin, Baohui Wang, Liping An, and Xuechun Lu
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Acidic polysaccharide ,Agaricus blazei Murrill ,Aging ,Anti-aging drugs ,Edible fungus ,Keap1-Nrf2/ ARE ,Biotechnology ,TP248.13-248.65 ,Biology (General) ,QH301-705.5 - Abstract
Background: In view of the increasing human life and the aging of the population, the search for safe anti-aging drugs has become a hot topic. Agaricus blazei Murrill is a rare edible fungus, with a variety of biological activities. The purpose of this study was to clarify the anti-aging effect and mechanism of ABM-A on the aging induced by D-Galactose in mice. Results: The result showed that ABM-A contained 87.2% of glucose, 3.3% of galactose, 3.8% mannose and 5.7% gluconic acid. The behavior of mice in the treatment group was significantly improved after administration of ABM-A. And the activity of SOD and CAT and the level of T-AOC were increased (p
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- 2022
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17. Pathogenesis of premature coronary artery disease: Focus on risk factors and genetic variants
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Haiming Wang, Zifan Liu, Junjie Shao, Min Jiang, Xuechun Lu, Lejian Lin, Lin Wang, Qiang Xu, Haomin Zhang, Xin Li, Jingjing Zhou, Yundai Chen, and Ran Zhang
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Genetic clinical applications ,Genetic variants ,Genome-wide association studies ,Premature coronary artery disease ,Single-nucleotide polymorphisms ,Medicine (General) ,R5-920 ,Genetics ,QH426-470 - Abstract
The development of premature coronary artery disease (PCAD) is dependent on both genetic predisposition and traditional risk factors. Strategies for unraveling the genetic basis of PCAD have evolved with the advent of modern technologies. Genome-wide association studies (GWASs) have identified a considerable number of common genetic variants that are associated with PCAD. Most of these genetic variants are attributable to lipid and blood pressure-related single-nucleotide polymorphisms (SNPs). The genetic variants that predispose individuals to developing PCAD may depend on race and ethnicity. Some characteristic genetic variants have been identified in Chinese populations. Although translating this genetic knowledge into clinical applications is still challenging, these genetic variants can be used for CAD phenotype identification, genetic prediction and therapy. In this article we will provide a comprehensive review of genetic variants detected by GWASs that are predicted to contribute to the development of PCAD. We will highlight recent findings regarding CAD-related genetic variants in Chinese populations and discuss the potential clinical utility of genetic variants for preventing and managing PCAD.
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- 2022
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18. Tetramisole is a new IK1 channel agonist and exerts IK1‐dependent cardioprotective effects in rats
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Qinghua Liu, Jiaxing Sun, Yangdou Dong, Pan Li, Jin Wang, Yulan Wang, Yanwu Xu, Xinrui Tian, Bowei Wu, Peifeng He, Qi Yu, Xuechun Lu, and Jimin Cao
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arrhythmia ,calcium overload ,cardiac remodeling ,drug repurposing ,inward rectifier potassium channel ,molecular docking ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Abstract Cardiac ischemia, hypoxia, arrhythmias, and heart failure share the common electrophysiological changes featured by the elevation of intracellular Ca2+ (Ca2+ overload) and inhibition of the inward rectifier potassium (IK1) channel. IK1 channel agonists have been considered a new type of anti‐arrhythmia and cardioprotective agents. We predicted using a drug repurposing strategy that tetramisole (Tet), a known anthelminthic agent, was a new IK1 channel agonist. The present study aimed to experimentally identify the above prediction and further demonstrate that Tet has cardioprotective effects. Results of the whole‐cell patch clamp technique showed that Tet at 1–100 μmol/L enhanced IK1 current, hyperpolarized resting potential (RP), and shortened action potential duration (APD) in isolated rat cardiomyocytes, while without effects on other ion channels or transporters. In adult Sprague–Dawley (SD) rats in vivo, Tet showed anti‐arrhythmia and anticardiac remodeling effects, respectively, in the coronary ligation‐induced myocardial infarction model and isoproterenol (Iso, i.p., 3 mg/kg/day, 10 days) infusion‐induced cardiac remodeling model. Tet also showed anticardiomyocyte remodeling effect in Iso (1 μmol/L) infused adult rat ventricular myocytes or cultured H9c2 (2‐1) cardiomyocytes. Tet at 0.54 mg/kg in vivo or 30 μmol/L in vitro showed promising protections on acute ischemic arrhythmias, myocardial hypertrophy, and fibrosis. Molecular docking was performed and identified the selective binding of Tet with Kir2.1. The cardioprotection of Tet was associated with the facilitation of IK1 channel forward trafficking, deactivation of PKA signaling, and inhibition of intracellular calcium overload. Enhancing IK1 may play dual roles in anti‐arrhythmia and antiventricular remodeling mediated by restoration of Ca2+ homeostasis.
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- 2022
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19. Potential of immune-related genes as promising biomarkers for premature coronary heart disease through high throughput sequencing and integrated bioinformatics analysis
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Haiming Wang, Junjie Shao, Xuechun Lu, Min Jiang, Xin Li, Zifan Liu, Yunzhang Zhao, Jingjing Zhou, Lejian Lin, Lin Wang, Qiang Xu, Yundai Chen, and Ran Zhang
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premature coronary heart disease ,high throughput sequencing ,integrated bioinformatics analysis ,immune dysfunction ,potential biomarkers ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
BackgroundCoronary heart disease (CHD) is the most common progressive disease that is difficult to diagnose and predict in the young asymptomatic period. Our study explored a mechanistic understanding of the genetic effects of premature CHD (PCHD) and provided potential biomarkers and treatment targets for further research through high throughput sequencing and integrated bioinformatics analysis.MethodsHigh throughput sequencing was performed among recruited patients with PCHD and young healthy individuals, and CHD-related microarray datasets were obtained from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were identified by using R software. Enrichment analysis and CIBERSORT were performed to explore the enriched pathways of DEGs and the characteristics of infiltrating immune cells. Hub genes identified by protein–protein interaction (PPI) networks were used to construct the competitive endogenous RNA (ceRNA) networks. Potential drugs were predicted by using the Drug Gene Interaction Database (DGIdb).ResultsA total of 35 DEGs were identified from the sequencing dataset and GEO database by the Venn Diagram. Enrichment analysis indicated that DEGs are mostly enriched in excessive immune activation pathways and signal transduction. CIBERSORT exhibited that resting memory CD4 T cells and neutrophils were more abundant, and M2 macrophages, CD8 T cells, and naïve CD4 T cells were relatively scarce in patients with PCHD. After the identification of 10 hub gens, three ceRNA networks of CD83, CXCL8, and NR4A2 were constructed by data retrieval and validation. In addition, CXCL8 might interact most with multiple chemical compounds mainly consisting of anti-inflammatory drugs.ConclusionsThe immune dysfunction mainly contributes to the pathogenesis of PCHD, and three ceRNA networks of CD83, CXCL8, and NR4A2 may be potential candidate biomarkers for early diagnosis and treatment targets of PCHD.
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- 2022
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20. Effect of human umbilical cord-derived mesenchymal stem cells on lung damage in severe COVID-19 patients: a randomized, double-blind, placebo-controlled phase 2 trial
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Lei Shi, Hai Huang, Xuechun Lu, Xiaoyan Yan, Xiaojing Jiang, Ruonan Xu, Siyu Wang, Chao Zhang, Xin Yuan, Zhe Xu, Lei Huang, Jun-Liang Fu, Yuanyuan Li, Yu Zhang, Wei-Qi Yao, Tianyi Liu, Jinwen Song, Liangliang Sun, Fan Yang, Xin Zhang, Bo Zhang, Ming Shi, Fanping Meng, Yanning Song, Yongpei Yu, Jiqiu Wen, Qi Li, Qing Mao, Markus Maeurer, Alimuddin Zumla, Chen Yao, Wei-Fen Xie, and Fu-Sheng Wang
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Medicine ,Biology (General) ,QH301-705.5 - Abstract
Abstract Treatment of severe Coronavirus Disease 2019 (COVID-19) is challenging. We performed a phase 2 trial to assess the efficacy and safety of human umbilical cord-mesenchymal stem cells (UC-MSCs) to treat severe COVID-19 patients with lung damage, based on our phase 1 data. In this randomized, double-blind, and placebo-controlled trial, we recruited 101 severe COVID-19 patients with lung damage. They were randomly assigned at a 2:1 ratio to receive either UC-MSCs (4 × 107 cells per infusion) or placebo on day 0, 3, and 6. The primary endpoint was an altered proportion of whole lung lesion volumes from baseline to day 28. Other imaging outcomes, 6-minute walk test (6-MWT), maximum vital capacity, diffusing capacity, and adverse events were recorded and analyzed. In all, 100 COVID-19 patients were finally received either UC-MSCs (n = 65) or placebo (n = 35). UC-MSCs administration exerted numerical improvement in whole lung lesion volume from baseline to day 28 compared with the placebo (the median difference was −13.31%, 95% CI −29.14%, 2.13%, P = 0.080). UC-MSCs significantly reduced the proportions of solid component lesion volume compared with the placebo (median difference: −15.45%; 95% CI −30.82%, −0.39%; P = 0.043). The 6-MWT showed an increased distance in patients treated with UC-MSCs (difference: 27.00 m; 95% CI 0.00, 57.00; P = 0.057). The incidence of adverse events was similar in the two groups. These results suggest that UC-MSCs treatment is a safe and potentially effective therapeutic approach for COVID-19 patients with lung damage. A phase 3 trial is required to evaluate effects on reducing mortality and preventing long-term pulmonary disability. (Funded by The National Key R&D Program of China and others. ClinicalTrials.gov number, NCT04288102.
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- 2021
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21. Identification of Six Prognostic Genes in EGFR–Mutant Lung Adenocarcinoma Using Structure Network Algorithms
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Haomin Zhang, Di Lu, Qinglun Li, Fengfeng Lu, Jundong Zhang, Zining Wang, Xuechun Lu, and Jinliang Wang
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EGFR–mutant lung adenocarcinoma ,prognosis ,WGCNA ,TCGA ,GEO ,Genetics ,QH426-470 - Abstract
This study aims to determine hub genes related to the incidence and prognosis of EGFR-mutant (MT) lung adenocarcinoma (LUAD) with weighted gene coexpression network analysis (WGCNA). From The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases, we used 253 EGFR-MT LUAD samples and 38 normal lung tissue samples. At the same time, GSE19188 was additionally included to verify the accuracy of the predicted gene. To discover differentially expressed genes (DEGs), the R package “limma” was used. The R packages “WGCNA” and “survival” were used to perform WGCNA and survival analyses, respectively. The functional analysis was carried out with the R package “clusterProfiler.” In total, 1450 EGFR-MT–specific DEGs were found, and 7 tumor-related modules were marked with WGCNA. We found 6 hub genes in DEGs that overlapped with the tumor-related modules, and the overexpression level of B3GNT3 was significantly associated with the worse OS (overall survival) of the EGFR-MT LUAD patients (p < 0.05). Functional analysis of the hub genes showed the metabolism and protein synthesis–related terms added value. In conclusion, we used WGCNA to identify hub genes in the development of EGFR-MT LUAD. The established prognostic factors could be used as clinical biomarkers. To confirm the mechanism of those genes in EGFR-MT LUAD, further molecular research is required.
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- 2021
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22. Anti-inflammatory Therapies for Coronary Heart Disease: A Systematic Review and Meta-Analysis
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Haiming Wang, Min Jiang, Xin Li, Yunzhang Zhao, Junjie Shao, Zifan Liu, Lejian Lin, Qiang Xu, Lin Wang, Xuechun Lu, Haomin Zhang, Yundai Chen, and Ran Zhang
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anti-inflammatory therapy ,coronary heart disease ,residual inflammation risk ,major cardiovascular events ,meta-analysis ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
Background: Anti-inflammatory therapy has been proposed as a promising treatment for coronary heart disease (CHD) that could reduce residual inflammation risk (RIR) and therefore major adverse cardiovascular events. We implemented a systematic review and meta-analysis of randomized controlled trials (RCTs) to assess the clinical benefits of anti-inflammatory agents in patients with CHD based on secondary cardiovascular prevention.Methods: We systemically searched the PubMed, Embase, and Cochrane Library databases for RCTs (published between Jan 1, 1950, and June 1, 2021; no language restrictions) that focused on anti-inflammatory therapy for coronary heart disease. Our primary end points of interest were a composite of all-cause death, recurrent myocardial infarction and stroke. We processed pooled data using a random-effects model.Results: Of 1497 selected studies, 18 studies with 67,449 participants met our inclusion criteria and were included in the present meta-analysis. Comparing anti-inflammatory agents with placebo, there was no significant decrease in risk of primary end points, secondary end points, all-cause mortality, cardiac mortality, recurrent myocardial infarction, stroke or revascularization. Further subgroup analysis indicated that anti-inflammatory agents led to a significant reduction in secondary end points (OR 0.87, CI 0.77–0.99; P = 0.03), recurrent myocardial infarction (OR 0.86, CI 0.78–0.95; P = 0.003) and revascularization (OR 0.81, CI 0.70–0.92; P = 0.001) in patients with stable CHD compared with placebo. Moreover, stable CHD patients had a lower propensity for recurrent myocardial infarction than acute coronary syndrome (ACS) patients when using anti-inflammatory agents (P = 0.03). The colchicine subgroup analysis showed that colchicine yielded a promising reduction in the primary end points (OR 0.81, CI 0.70–0.95; P = 0.009) compared with placebo. Anti-inflammatory agents were associated with a higher risk of infection (OR 1.13, CI 1.03–1.23; P = 0.007) and negligible effects on cancers (OR 0.98, CI 0.90–1.06; P = 0.61).Conclusion: Anti-inflammatory agents appear to have beneficial effects in reducing the risk of recurrent myocardial infarction in patients with stable CHD, albeit at the cost of increased infection. Notably, colchicine demonstrates a promising cardioprotective effect with a lower incidence of major cardiovascular events and thus is a potential therapeutic strategy for stable CHD patients.Systematic Review Registration: PROSPERO, identifier CRD42021245514.
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- 2021
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23. Effects of Agaricus blazei polypeptide on cell senescence by regulation of Keap1/Nrf2/ARE and TLR4/NF-κBp65 signaling pathways and its mechanism in D-gal-induced NIH/3T3 cells
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Qingxia Feng, Xuechun Lu, Guangxin Yuan, Qian Zhang, and Liping An
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Agaricus blazei ,ABp-RQR ,Aging ,Nrf2/ARE ,TLR4/NF-κBp65 ,Nutrition. Foods and food supply ,TX341-641 - Abstract
Agaricus blazei is a kind of fungus plant with an edible as well as a medicinal use. Previous experiments have shown its crude peptide to possess an obvious anti-aging effect. In the present study three active components viz. ABp-RRQ, ABp-RQR and ABp-TRAR were obtained from the Agaricus blazei polypeptide. ABp-RQR was the main active component with a molecular weight of 458 Dalton, and HPLC confirmed it’s a purity > 98%. When the D-galactose(D-gal)-induced NIH/3T3 cells were treated with ABp-RQR, changes were observed in the oxidative stress activities and the contents of inflammatory factors. Cell morphology and the percentage of positive cells were observed using the β-galactosidase staining. Western blot was used to detect the expression levels of the proteins modulated in the inflammatory and antioxidant signaling pathways. Our study suggests that ABp-RQR may play an anti-aging role by alleviating the oxidative inflammatory reactions in D-gal-induced NIH/3T3 cells.
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- 2020
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24. Non-Hodgkin’s lymphoma in an elderly patient with renal dysfunction: a case report
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Cong Ma, Bingxiang Yu, Haomin Zhang, Bo Yang, Dongwan Li, Rong Li, and Xuechun Lu
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Medicine (General) ,R5-920 - Abstract
Objective This study was performed to examine the treatment regimen used for an elderly patient with diffuse large B-cell lymphoma (DLBCL) complicated with renal dysfunction. Case report An 85-year-old man presented with nasal and sinus disorders in May 2018. He was also found to have renal insufficiency caused by long-term consumption of compound aminopyrine phenacetin tablets. Physical examination revealed irritation of the nasal mucous membrane on the right side and dark red nasal passages with a smooth surface. The right side of the neck contained several small peanut-sized lymph nodes. A biopsy of the right nasal neoplasm revealed germinal center type DLBCL. The mini–rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone regimen (mini-R-CHOP) was administered as the main chemotherapy regimen. Additionally, the use of thrombopoietin prevented further deterioration in renal function. This individualized treatment program helped the patient to achieve complete remission. The creatinine level decreased and was well maintained. Conclusion The mini-R-CHOP and rituximab cross-use regimen was found to be safe in an elderly patient with chronic renal insufficiency. Thrombopoietin exerted a protective effect on renal function.
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- 2020
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25. Immune and Inflammation in Acute Coronary Syndrome: Molecular Mechanisms and Therapeutic Implications
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Haiming Wang, Zifan Liu, Junjie Shao, Lejian Lin, Min Jiang, Lin Wang, Xuechun Lu, Haomin Zhang, Yundai Chen, and Ran Zhang
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Immunologic diseases. Allergy ,RC581-607 - Abstract
Acute coronary syndrome (ACS) is a major cause of acute death worldwide. Both innate and adaptive immunity regulate atherosclerosis progression, plaque stability, and thrombus formation. Immune and inflammation dysfunction have been indicated in the pathogenesis of ACS. The imbalance in the proatherogenic and antiatherogenic immune networks promotes the transition of plaques from a stable to unstable state and results in the occurrence of acute coronary events. The residual inflammatory risk (RIR) has received increasing attention in recent years, and lowering RIR has been expected to improve the outcomes of ACS patients. The CANTOS, COLCOT, and LoDoCo trials verified the benefits of reducing cardiovascular events using anti-inflammation therapies; however, most of the other studies focusing on lowering RIR produced negative or contradicting results. Therefore, restoring the balance in autoimmune regulation is essential because proatherogenic and antiatherogenic immunomodulatory effects are equally important in the complex human immune network. In this review, we summarized the recent evidence of the roles of proatherogenic and antiatherogenic immune networks in the pathogenesis of ACS and discussed how immune and inflammation contribute to atherosclerosis progression, plaque instability, and adverse cardiovascular events. We also provide a “from bench to bedside” perspective of a novel and promising personalized strategy in RIR intervention and therapeutic approaches for the treatment of ACS.
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- 2020
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26. Low-Dose Decitabine-Based Chemoimmunotherapy for Patients with Refractory Advanced Solid Tumors: A Phase I/II Report
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Hui Fan, Xuechun Lu, Xiaohui Wang, Yang Liu, Bo Guo, Yan Zhang, Wenying Zhang, Jing Nie, Kaichao Feng, Meixia Chen, Yajing Zhang, Yao Wang, Fengxia Shi, Xiaobing Fu, Hongli Zhu, and Weidong Han
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Immunologic diseases. Allergy ,RC581-607 - Abstract
Aberrant DNA methylation is one of the main drivers of tumor initiation and progression. The reversibility of methylation modulation makes it an attractive target for novel anticancer therapies. Clinical studies have demonstrated that high-dose decitabine, a hypomethylating agent, results in some clinical benefits in patients with refractory advanced tumors; however, they are extremely toxic. Low doses of decitabine minimize toxicity while potentially improving the targeted effects of DNA hypomethylation. Based on these mechanisms, low-dose decitabine combined with chemoimmunotherapy may be a new treatment option for patients with refractory advanced tumors. We proposed the regimen of low-dose decitabine-based chemoimmunotherapy for patients with refractory advanced solid tumors. A favorable adverse event profile was observed in our trial that was highlighted by the finding that most of these adverse events were grades 1-2. Besides, the activity of our cohort was optimistic and the clinical benefit rate was up to 60%, and the median PFS was prolonged compared with PFS to previous treatment. We also identified a significant correlation between the PFS to previous treatment and clinical response. The low-dose DAC decitabine-based chemoimmunotherapy might be a promising protocol for improving the specificity and efficiency of patients with refractory advanced solid tumors. This trial is registered in the ClinicalTrials.gov database (identifier NCT01799083).
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- 2014
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27. Relationships between HDL-C, hs-CRP, with central arterial stiffness in apparently healthy people undergoing a general health examination.
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Xi Wang, Yingzhen Du, Li Fan, Ping Ye, Ying Yuan, Xuechun Lu, Fan Wang, and Qiang Zeng
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Medicine ,Science - Abstract
BACKGROUND: Some cardiovascular risk factors have been confirmed to be positively correlated with arterial stiffness. However, it is unclear whether HDL-C, a well-established anti-risk factor, has an independent association with arterial stiffness. The aim of this study was to evaluate the relationship between HDL-C levels and arterial stiffness and the possible role of high-sensitivity C-reactive protein (hs-CRP) in this potential correlation in apparently healthy adults undergoing a general health examination in China. MATERIALS AND METHODS: This was a cross-sectional survey. In total, 15,302 participants (age range, 18-82 years; mean, 43.88±8.44 years) were recruited during routine health status examinations. A questionnaire was used and we measured the body mass index, systolic and diastolic blood pressure, and fasting glucose, and serum lipid, uric acid, hs-CRP, and serum creatinine levels of each participant. Central arterial stiffness was assessed by carotid-femoral pulse wave velocity (cf-PWV). RESULTS: HDL-C levels decreased as cf-PWV increased. Pearson's correlation analysis revealed that HDL-C levels were associated with cf-PWV (r=-0.18, P
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- 2013
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28. Enhanced triolein and ethyl ferulate interesterification performance by CRL-AuNPs
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Kai, Zhang, Jiaying, Xin, and Xuechun, Lu
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- 2024
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29. Effect of Methylprednisolone on Mortality and Clinical Courses in Patients with Severe COVID-19: A Propensity Score Matching Analysis
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Xiaoyan Li, Xin Yuan, Zhe Xu, Lei Shi, Lei Huang, Xuechun Lu, and Junliang Fu
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- 2022
30. Study on the hypolipidemic effect of Inonotus obliquus polysaccharide in hyperlipidemia rats based on the regulation of intestinal flora
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Fengyuan Lin, Xiao Li, Xiao Guo, Xuechun Lu, Xiao Han, GuangYu Xu, Peige Du, and Liping An
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Food Science - Published
- 2022
31. Optical-Gain-based Sensing Using Inorganic-Ligand-Passivated Colloidal Quantum Dots
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Xuechun Lu, Fengjia Fan, Wei-Guo Chen, and Jiangfeng Du
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Steric effects ,Amplified spontaneous emission ,Materials science ,Absorption of water ,business.industry ,Mechanical Engineering ,Bioengineering ,General Chemistry ,Trapping ,Condensed Matter Physics ,Ultrafast laser spectroscopy ,Molecule ,Optoelectronics ,General Materials Science ,Spontaneous emission ,business ,Ultrashort pulse - Abstract
Thanks to their extremely large surface-to-volume ratio, colloidal quantum dots are potential high-performance sensing materials. However, previous sensing works using their spontaneous emission suffer from low sensitivities. The absence of an amplification process and the presence of the steric hindrance of long-chain organic ligands are two possible causations. Herein we propose that these two issues can be circumvented by using the amplified spontaneous emission of colloidal quantum dots capped by short-chain inorganic ligands. To exemplify this concept, we performed humidity sensing and observed a ∼31 times enhancement in sensitivity. Meanwhile, we found that the amplified spontaneous emission threshold power was reduced by 34% in a high humidity environment. On the basis of our transient absorption measurements, we attribute these observations to the mitigation of ultrafast subpicosecond trapping processes, which are enabled by the absorption of water molecules.
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- 2021
32. Bioinformatics analysis of SARS-CoV-2 infection-associated immune injury and therapeutic prediction for COVID-19
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Haoran Chen, Bin Guo, Xuechun Lu, Yixing Wang, Peng Zhi, Feng Cao, Jun Ren, Geliang Liu, Jundong Zhang, Xiaohua Chi, Ximeng Chen, Bo Yang, Zhuoyang Li, and Haomin Zhang
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Coronavirus disease 2019 (COVID-19) ,Bioinformatics analysis ,Drug prediction ,business.industry ,Bioinformatics ,viruses ,Mortality rate ,Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) ,COVID-19 ,Immune injury ,Viral infection ,Coronavirus ,Immune system ,Immunology ,Medicine ,Original Article ,business - Abstract
Background: Severe acute respiratory syndrome coronavirus 2 is a highly contagious viral infection, without any available targeted therapies. The high mortality rate of COVID-19 is speculated to be related to immune damage. Methods: In this study, clinical bioinformatics analysis was conducted on transcriptome data of coronavirus infection. Results: Bioinformatics analysis revealed that the complex immune injury induced by coronavirus infection provoked dysfunction of numerous immune-related molecules and signaling pathways, including immune cells and toll-like receptor cascades. Production of numerous cytokines through the Th17 signaling pathway led to elevation in plasma levels of cytokines (including IL6, NF-κB, and TNF-α) followed by concurrent inflammatory storm, which mediates the autoimmune response. Several novel medications seemed to display therapeutic effects on immune damage associated with coronavirus infection. Conclusions: This study provided insights for further large-scale studies on the target therapy on reconciliation of immunological damage associated with COVID-19.
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- 2021
33. Tetramisole is a new I K1 channel agonist and exerts I K1 ‐dependent cardioprotective effects in rats
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Qinghua Liu, Jiaxing Sun, Yangdou Dong, Pan Li, Jin Wang, Yulan Wang, Yanwu Xu, Xinrui Tian, Bowei Wu, Peifeng He, Qi Yu, Xuechun Lu, and Jimin Cao
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Neurology ,General Pharmacology, Toxicology and Pharmaceutics - Published
- 2022
34. Effects of Agaricus blazei Murrill polysaccharides on hyperlipidemic rats by regulation of intestinal microflora
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Peige Du, Guangyu Xu, Yuxin Li, Han Xiao, Yingna Li, Xiao Li, Liping An, Yu Sheng, Xuechun Lu, and Guo Xiao
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0301 basic medicine ,medicine.medical_specialty ,genetic structures ,Firmicutes ,Blood lipids ,lcsh:TX341-641 ,030209 endocrinology & metabolism ,Polysaccharide ,Cholesterol 7 alpha-hydroxylase ,03 medical and health sciences ,Agaricus blazei Murrill ,0302 clinical medicine ,Internal medicine ,Hyperlipidemia ,medicine ,hyperlipidemia ,intestinal microflora ,chemistry.chemical_classification ,biology ,medicine.disease ,biology.organism_classification ,030104 developmental biology ,Endocrinology ,chemistry ,polysaccharide ,Steatosis ,lcsh:Nutrition. Foods and food supply ,Dyslipidemia ,Food Science ,Ruminococcaceae - Abstract
The present research envisaged the effects of Agaricus blazei Murrill polysaccharides (ABPs) on blood lipids and its role in regulation of the intestinal microflora in hyperlipidemic rats. The acidic polysaccharide fraction of Agaricus blazei Murrill was obtained by DEAE-cellulose ion exchange column chromatography. The sugar content of ABP was 75.1%. Compared with the model group (MG), the serum TC, TG, and LDL-C levels decreased (p < .05 or p < .01) and the HDL-C levels increased (p < .01) significantly in the ABP group. Expression of CYP7A1 was up-regulated (p < .01), and that of SREBP-1C (p < .05) was down-regulated significantly in the liver tissue of rats in the ABP group. Additionally, the disordered hepatic lobules and the steatosis of hepatocytes were found to be significantly alleviated in the ABP group. We believe that ABP can reduce the ratio of Firmicutes/Bacteroidetes and reduce the relative abundance of Firmicutes, Ruminococcaceae_unclassified, and Ruminococcaceae, increasing the relative abundance of Proteobacteria, Clostridium_sensu_stricto, Allobaculum, Peptostreptococcaceae, Clostridiaceae_1, and Erysipelotrichaceae as targets to regulate blood lipids. The results showed ABP could regulate the dyslipidemia in rats with hyperlipidemia. The mechanism may be through the regulation of the imbalance of intestinal microflora induced by the high-fat diet in rats, which may be one of the important ways of its intervention on the dyslipidemia induced by high-fat diet.
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- 2020
35. Understanding Chinese Millennials' Adoption Intention Towards Third-Party Mobile Payment
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Xuechun Lu and Hui Lu
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business.industry ,Emerging technologies ,Strategy and Management ,Usability ,Library and Information Sciences ,Popularity ,Risk perception ,Mobile payment ,Social consciousness ,Technology acceptance model ,Business and International Management ,Marketing ,business ,Social influence - Abstract
Different user groups will tend to value different third-party mobile payment offerings differently, and so make different adoption decisions. Millennials are regarded as creative, socially conscious and more willing to provide opinions on the advantages and disadvantages of new technologies. Therefore, it is important to investigate the key factors that affect Chinese Millennials' adoption behavior of third-party mobile payments as they grow in popularity in China. This study establishes a new conceptual model based on the Technology Acceptance Model incorporating additional variables such as perceived risk, personal innovativeness, compatibility, and social influence. This research collected quantitative data by questionnaire (N=380). The data was analyzed by SPSS. This study suggests that social influence and attitude directly affect adoption intention towards third-party mobile payments, whereas perceived usefulness, compatibility, perceived ease of use and personal innovativeness only indirectly affect adoption intention towards third-party mobile payments.
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- 2020
36. Diabetic kidney disease screening status and related factors: a cross-sectional study of patients with type 2 diabetes in six provinces in China
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Zhang Xia, Xuechun Luo, Yanzhi Wang, Tingling Xu, Jianqun Dong, Wei Jiang, and Yingying Jiang
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Diabetic kidney disease ,Screening ,Behavior ,Cross-sectional ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Objective To understand the awareness and practice of diabetic kidney disease (DKD) or nephropathy screening among community-based patients with type 2 diabetes in six provinces and cities in China, and to analyse the related factors affecting screening practices. Methods From December 2021 to March 2022, a cross-sectional survey was conducted using a structured questionnaire in 6230 patients with type 2 diabetes aged 18 years and older. The content of the questionnaire includes three parts: the general situation of diabetic patients (gender, age, ethnicity, marriage, education, occupation, etc.), DKD screening practices, and the evaluation of DKD screening services. Results 89.70% of the patients had their fasting blood glucose measured every six months, 21.12% of the patients had their glycosylated hemoglobin measured every six months, and only 13.11% and 9.34% of the patients had a urine protein-creatinine ratio test and estimated glomerular filtration rate test every 12 months. The proportions of glycosylated hemoglobin, urine protein-creatinine ratio, and estimated glomerular filtration rate were relatively high in young, northern, highly educated, and long-duration type 2 diabetic patients. Conclusion The results of this survey found that the proportion of urine protein-creatinine ratio testing, estimated glomerular filtration rate testing, and glycosylated hemoglobin testing in Chinese patients with type 2 diabetes was very low. Patients with type 2 diabetes in rural areas, southern areas, with low education level, and short course of disease have lower detection rates for DKD, and hence lower rates of prevention and treatment.
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- 2024
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37. Effects of compound deer bone extract on osteoporosis model mice and intestinal microflora
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Yu Sheng, Wang Manli, Liping An, Chuang Xue, Xuechun Lu, Jingru Guo, Guo Xiao, Wang Pan, Han Xiao, Peige Du, Guangxin Yuan, Zhao Nanxi, Guangyu Xu, Hongyu Li, and Sun Jingbo
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030309 nutrition & dietetics ,Osteoporosis ,Biophysics ,Physiology ,Postmenopausal osteoporosis ,Proximal tibia ,Rats, Sprague-Dawley ,03 medical and health sciences ,Mice ,0404 agricultural biotechnology ,Functional food ,Bone Density ,medicine ,Animals ,Humans ,Pharmacology ,0303 health sciences ,Mice, Inbred ICR ,business.industry ,Plant Extracts ,Deer ,FOXP3 ,04 agricultural and veterinary sciences ,Cell Biology ,medicine.disease ,040401 food science ,Gastrointestinal Microbiome ,Rats ,Ovariectomized rat ,Female ,business ,Icr mice ,Food Science - Abstract
The preventive and therapeutic mechanisms of CDBE on osteoporosis were studied by observing the serum bone-related biochemical indicators, bone trabecular micro-structure and intestinal flora in ovariectomized osteoporosis model mice, in order to provide a scientific theoretical basis for the further study on the effect of CDBE on osteoporosis, and the prevention and treatment of osteoporosis with clinical traditional Chinese medicines. The components in CDBE were detected by UHPLC-MS. A mouse osteoporosis model was established by the bilateral ovariectomy in female ICR mice. The biochemical indicators related to osteoporosis were detected, the right proximal tibia was scanned by Micro-CT, the intestinal microflora in the colon contents were examined, and the changes of microflora were taken as the main target to evaluate the effect of CDBE on the intestinal microflora in the model mice. A total of 16 compounds were obtained by the combined application of UHPLC-MS. CDBE could significantly increase the contents of E2, Ca2+ , CT, HyP, OCN, FOXP3, P1NP and CTX-II, in the model mice. CDBE could significantly improve the trabecular micro-structure, Tb.N, Tb.Sp, SMI and Conn.D. CDBE could make the intestinal flora of osteoporosis model mice tend to healthy mice in species and quantity. CDBE can improve the symptoms of postmenopausal osteoporosis in mice, with a positive effect on the intestinal flora of postmenopausal mice. Its mechanism of regulating the symptoms of osteoporosis may be related to the regulation of bone-related biochemical indicators in the serum of mice. PRACTICAL APPLICATIONS: This research has a positive impact on the development of functional food with anti-osteoporosis in the future.
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- 2021
38. Effect of human umbilical cord-derived mesenchymal stem cells on lung damage in severe COVID-19 patients: a randomized, double-blind, placebo-controlled phase 2 trial
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Siyu Wang, Alimuddin Zumla, Yuanyuan Li, Markus Maeurer, Wei-Qi Yao, Chao Zhang, Liangliang Sun, Jiqiu Wen, Bo Zhang, Yongpei Yu, Zhang Yu, Qi Li, Chen Yao, Fu-Sheng Wang, Xin Zhang, Ruonan Xu, Yanning Song, Junliang Fu, Lei Shi, Wei-Fen Xie, Xiaoyan Yan, Qing Mao, Lei Huang, Tianyi Liu, Hai Huang, Xin Yuan, Ming Shi, Zhe Xu, Xuechun Lu, Jin-Wen Song, Fanping Meng, Fan Yang, and Xiaojing Jiang
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0301 basic medicine ,Male ,medicine.medical_specialty ,Cancer Research ,lcsh:Medicine ,Placebo ,Mesenchymal Stem Cell Transplantation ,Umbilical cord ,Gastroenterology ,Article ,law.invention ,Umbilical Cord ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,Double-Blind Method ,law ,Internal medicine ,Diffusing capacity ,medicine ,Clinical endpoint ,Genetics ,Humans ,Adverse effect ,lcsh:QH301-705.5 ,Aged ,Respiratory tract diseases ,Lung ,business.industry ,SARS-CoV-2 ,lcsh:R ,COVID-19 ,Mesenchymal Stem Cells ,Middle Aged ,Allografts ,Clinical trial ,030104 developmental biology ,medicine.anatomical_structure ,Treatment Outcome ,lcsh:Biology (General) ,030220 oncology & carcinogenesis ,Infectious diseases ,Female ,business - Abstract
Treatment of severe Coronavirus Disease 2019 (COVID-19) is challenging. We performed a phase 2 trial to assess the efficacy and safety of human umbilical cord-mesenchymal stem cells (UC-MSCs) to treat severe COVID-19 patients with lung damage, based on our phase 1 data. In this randomized, double-blind, and placebo-controlled trial, we recruited 101 severe COVID-19 patients with lung damage. They were randomly assigned at a 2:1 ratio to receive either UC-MSCs (4 × 107 cells per infusion) or placebo on day 0, 3, and 6. The primary endpoint was an altered proportion of whole lung lesion volumes from baseline to day 28. Other imaging outcomes, 6-minute walk test (6-MWT), maximum vital capacity, diffusing capacity, and adverse events were recorded and analyzed. In all, 100 COVID-19 patients were finally received either UC-MSCs (n = 65) or placebo (n = 35). UC-MSCs administration exerted numerical improvement in whole lung lesion volume from baseline to day 28 compared with the placebo (the median difference was −13.31%, 95% CI −29.14%, 2.13%, P = 0.080). UC-MSCs significantly reduced the proportions of solid component lesion volume compared with the placebo (median difference: −15.45%; 95% CI −30.82%, −0.39%; P = 0.043). The 6-MWT showed an increased distance in patients treated with UC-MSCs (difference: 27.00 m; 95% CI 0.00, 57.00; P = 0.057). The incidence of adverse events was similar in the two groups. These results suggest that UC-MSCs treatment is a safe and potentially effective therapeutic approach for COVID-19 patients with lung damage. A phase 3 trial is required to evaluate effects on reducing mortality and preventing long-term pulmonary disability. (Funded by The National Key R&D Program of China and others. ClinicalTrials.gov number, NCT04288102.
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- 2021
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39. Treatment with human umbilical cord-derived mesenchymal stem cells for COVID-19 patients with lung damage: a randomised, double-blind, placebo-controlled phase 2 trial
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Fanping Meng, Wei-Qi Yao, Yongpei Yu, Tianyi Liu, Xiaoyan Yan, Zhe Xu, Ruonan Xu, Junliang Fu, Jin-Wen Song, Qi Li, Xin Yuan, Ming Shi, Chen Yao, Liangliang Sun, Bo Zhang, Fu-Sheng Wang, Yuanyuan Li, Alimuddin Zumla, Xuechun Lu, Lei Shi, Hai Huang, Wei-Fen Xie, Siyu Wang, Yanning Song, Jiqiu Wen, Xiaojing Jiang, Yu Zhang, Markus Maeurer, Chao Zhang, Qing Mao, Fan Yang, Xin Zhang, and Lei Huang
- Subjects
medicine.medical_specialty ,Lung ,business.industry ,Incidence (epidemiology) ,Placebo ,Gastroenterology ,Umbilical cord ,medicine.anatomical_structure ,Internal medicine ,Diffusing capacity ,Clinical endpoint ,medicine ,Stem cell ,Adverse effect ,business - Abstract
BACKGROUNDTreatment of severe Corona Virus Disease 2019 (COVID-19) is challenging. We performed a phase 2 trial to assess the efficacy and safety of human umbilical cord-mesenchymal stem cells (UC-MSCs) to treat severe COVID-19 patients with lung damage, based on our phase 1 data.METHODSIn this randomized, double-blind, and placebo-controlled trial, we recruited 101 severe COVID-19 patients with lung damage. They were randomly assigned to receive either UC-MSCs (4 × 107 cells per infusion) or placebo on day 0, 3, and 6. The primary endpoint was an altered proportion of whole lung lesion volumes from baseline to day 28. Other imaging outcomes, 6-minute walk test, maximum vital capacity, diffusing capacity, and adverse events were recorded and analysed.RESULTS100 COVID-19 patients were finally recruited to receive either UC-MSCs (n = 65) or placebo (n = 35). UC-MSCs administration exerted numerical improvement in whole lung lesion volume from baseline to day 28 compared with the placebo (the median difference was -13.31%, 95%CI -29.14%, 2.13%, P=0.080). UC-MSCs significantly reduced the proportions of solid component lesion volume compared with the placebo (median difference: -15.45%; 95% CI -30.82%, -0.39%; P=0.043). The 6-minute walk test showed an increased distance in patients treated with UC-MSCs (difference: 27.00 m; 95% CI 0.00, 57.00; P=0.057). The incidence of adverse events was similar in the two groups.CONCLUSIONSUC-MSCs treatment is a safe and potentially effective therapeutic approach for COVID-19 patients with lung damage. (Funded by The National Key R&D Program of China and others. ClinicalTrials.gov number, NCT04288102.)
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- 2020
40. Study on the effect of regulation of Cordyceps militaris polypeptide on the immune function of mice based on a transcription factor regulatory network
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Guangxin Yuan, Liping An, Peige Du, Guangyu Xu, Yu Sheng, and Xuechun Lu
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0301 basic medicine ,Male ,Gene regulatory network ,Biology ,Cell Line ,Immunomodulation ,Proto-Oncogene Protein c-ets-1 ,03 medical and health sciences ,Hemolysin Proteins ,Immune System Phenomena ,Immunocompromised Host ,Mice ,Phosphatidylinositol 3-Kinases ,0302 clinical medicine ,Immune system ,ETS1 ,E2F2 Transcription Factor ,E2F1 ,Animals ,Smad3 Protein ,Gene ,Transcription factor ,Cyclophosphamide ,E2F2 ,Regulation of gene expression ,Mice, Inbred ICR ,General Medicine ,Vascular Endothelial Growth Factor Receptor-2 ,Cell biology ,030104 developmental biology ,Gene Expression Regulation ,Cyclooxygenase 2 ,030220 oncology & carcinogenesis ,Cordyceps ,Osteopontin ,Genes, rel ,Peptides ,E2F1 Transcription Factor ,Spleen ,Food Science ,Transcription Factors - Abstract
Background: The pathogenesis of the abnormality of the immune system is still not clear at present. Chemosynthetic drugs, human or animal immune products and microbiological drugs are used as the main drugs in clinics currently, but these drugs have different side effects. So researchers turned to safer natural products in order to find immunomodulatory active substances from natural products and their extracts. Methods: Immunosuppressed mice were induced by cyclophosphamide and administered with Cordyceps militaris polypeptide (CMP) for the study on the effect of CMP on the immune function of mice and its mechanism. Based on the 1748 differential gene sets selected in our previous work, the transcription factors and their corresponding target genes were screened by integrating the TRED (Transcriptional Regulatory Element Database), a transcriptional factor-target gene regulatory network was constructed, then the role of transcription factors in the regulatory network was elucidated by statistically analyzing the key nodes, and finally, the correlation of network genes with diseases was analyzed by using the DAVID database. Results: The results of animal experiments showed that CMP could increase the immune organ indexes, the number of white blood cells, the degree of delayed allergy and the content of hemolysin in the serum of mice. CMP was found to be involved in the regulation of immune function in mice through genes Kdr, Spp1, Ptgs2, Rel, and Smad3, and transcription factors Ets1, E2f2 and E2f1. E2F2 and E2F1 are members of the E2F family, so we speculated that the E2F family might play an important role, and its main regulatory pathways were the PI3K-Akt signaling pathway and TNF signaling pathway. Conclusion: CMP can improve the immunity of mice. CMP can regulate the immune function of mice through multiple genes and transcription factors, and may also play a role in immune-related diseases, such as cancer.
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- 2020
41. Treatment with Human Umbilical Cord-Derived Mesenchymal Stem Cells for Severe COVID-19 Patients with Lung Damage: A Randomised, Double-Blind, Placebo‑Controlled Phase 2 Trial
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Yuanyuan Li, Qi Li, Hai Huang, Chen Yao, Xin Zhang, Wei-Fen Xie, Xiaoyan Yan, Chao Zhang, Zhang Yu, Fan Yang, Xiaojing Jiang, Siyu Wang, Liangliang Sun, Tianyi Liu, Yanning Song, Zhe Xu, Bo Zhang, Fanping Meng, Qing Mao, Fu-Sheng Wang, Xuechun Lu, Lei Huang, Lei Shi, Junliang Fu, Xin Yuan, Ming Shi, Jiqiu Wen, Yongpei Yu, Ruonan Xu, Wei Qi Yao, and Jin-Wen Song
- Subjects
education.field_of_study ,medicine.medical_specialty ,business.industry ,Population ,Placebo ,Umbilical cord ,law.invention ,medicine.anatomical_structure ,Randomized controlled trial ,Informed consent ,law ,Diffusing capacity ,Internal medicine ,Clinical endpoint ,medicine ,Adverse effect ,education ,business - Abstract
Background: Treatment of severe Corona Virus Disease 2019 (COVID-19) is challenging. We performed a phase 2 trial to assess the efficacy and safety of human umbilical cord-mesenchymal stem cells (UC‑MSCs) to treat patients with severe COVID-19 with lung damage, based on our phase 1 data. Methods: In this randomised, double-blind, and placebo-controlled trial, we recruited 101 eligible patients with severe COVID-19 with lung damage aged between 18–74 years from two hospitals. Enrolled patients were randomly assigned at a 2:1 ratio to receive either UC-MSCs (4 × 107 cells per infusion) or placebo on day 0, 3, and 6. We excluded patients with malignant tumours, shock, or other organ failure. The primary endpoint was an altered proportion of whole lung lesion areas from baseline to day 28, measured by chest computed tomography. Other imaging outcomes, 6-minute walk test, maximum vital capacity, diffusing capacity, plasma biomarkers, and adverse events were recorded and analysed. Primary analysis was done in the modified intention-to-treat (mITT) population and safety analysis was done in all patients who started their assigned treatment. Findings: From March 5, 2020, to March 28, 2020, 100 patients were finally enrolled and received either UC-MSCs (n = 65) or placebo (n = 35). During follow-up, the patients receiving UC-MSCs exhibited a trend of numerical improvement in whole lung lesions from baseline to day 28 compared with the placebo cases. UC-MSCs administration significantly reduced the proportions of consolidation lesions from baseline to day 28 in the treated patients compared with the placebo subjects. The 6-minute walk test showed an increased distance in patients treated with UC-MSCs. Notably, UC-MSCs delivery was well tolerated, with no serious adverse events. Interpretation: UC-MSCs treatment is a safe and potentially effective therapeutic approach for patients with severe COVID‑19. The trial suggests that UC-MSCs administration might benefit patients with COVID-19 with lung damage at the convalescent stage as well as the progression stage. Trial Registration: This trial is registered with ClinicalTrials.gov, number NCT04288102. Funding Statement: This trial was supported by The National Key RD The Innovation Groups of the National Natural Science Foundation of China (81721002); The National Science and Technology Major Project (2017YFA0105703). Declaration of Interests: All authors declare no competing interests. Ethics Approval Statement: Ethical approval was obtained from the institutional review boards of each participating hospital. Written informed consent was obtained from all the enrolled patients or their legal representatives if they were unable to provide consent.
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- 2020
42. Isolation and purification of acidic polysaccharides from Agaricus blazei Murill and evaluation of their lipid-lowering mechanism
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Peige Du, Xuechun Lu, Guangyu Xu, Yuxin Li, Guo Xiao, Han Xiao, Liping An, and Yu Sheng
- Subjects
Male ,Cell Survival ,Agaricus ,Hyperlipidemias ,02 engineering and technology ,Polysaccharide ,Biochemistry ,Sepharose ,Rats, Sprague-Dawley ,03 medical and health sciences ,chemistry.chemical_compound ,Structural Biology ,In vivo ,Polysaccharides ,Animals ,Humans ,Molecular Biology ,Glucans ,030304 developmental biology ,Glucan ,chemistry.chemical_classification ,0303 health sciences ,biology ,General Medicine ,Hep G2 Cells ,021001 nanoscience & nanotechnology ,Lipid Metabolism ,Lipids ,In vitro ,Rats ,Up-Regulation ,Oleic acid ,Disease Models, Animal ,Dextran ,chemistry ,Liver ,ABCA1 ,biology.protein ,lipids (amino acids, peptides, and proteins) ,0210 nano-technology ,Oleic Acid ,Signal Transduction - Abstract
Polysaccharides are important active constituents of Agaricus blazei Morrill. In the present study, WABM-A was isolated from WABM using DEAE-cellulose, and subsequently purified using sepharose CL-6B to obtain the acidic polysaccharide WABM-A-b. WABM-A-b is mainly composed of Glc dextran, with a molecular weight of 10 KDa and β-1,6-D-Glcp as its main chain. The results of in vivo experiments show that in comparison with the MG, WABM-A significantly reduced the serum levels of TC, TG, and LDL-C, increased the serum levels of HDL-C (P
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- 2019
43. Effects of
- Author
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Yuxin, Li, Xuechun, Lu, Xiao, Li, Xiao, Guo, Yu, Sheng, Yingna, Li, Guangyu, Xu, Xiao, Han, Liping, An, and Peige, Du
- Subjects
Agaricus blazei Murrill ,genetic structures ,polysaccharide ,hyperlipidemia ,intestinal microflora ,Original Research - Abstract
The present research envisaged the effects of Agaricus blazei Murrill polysaccharides (ABPs) on blood lipids and its role in regulation of the intestinal microflora in hyperlipidemic rats. The acidic polysaccharide fraction of Agaricus blazei Murrill was obtained by DEAE‐cellulose ion exchange column chromatography. The sugar content of ABP was 75.1%. Compared with the model group (MG), the serum TC, TG, and LDL‐C levels decreased (p, Agaricus blazei Murrill polysaccharides (ABPs) could regulate the blood lipids in hyperlipidemic rats. The mechanism may be through the regulation of the imbalance of intestinal microflora induced by the high‐fat diet in rats, which may be one of the important ways of its intervention on the dyslipidemia induced by high‐fat diet.
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- 2019
44. Prevalence and influencing factors of multimorbidity among community diabetic patients in six provincial-level administrative divisions of China
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Xuechun LUO, Yingying JIANG, Ning JI, Fan MAO, Wenlan DONG, Yanzhi WANG, and Jianqun DONG
- Subjects
diabetes ,multimorbidity ,influencing factor ,community ,Public aspects of medicine ,RA1-1270 - Abstract
ObjectiveTo examine the prevalence and influencing factors of multimorbidity among community diabetic patients in six provincial-level administrative divisions (PLADs) of China for providing evidence to disease management and multimorbidity prevention in the patients. MethodsUsing stratified multistage random sampling, we selected 6 713 adult patients ( ≥ 18 years) with type 2 diabetics registered in local basic public health service systems in urban communities and rural villages in Tianjin and Chongqing municipality and Guangdong, Hubei, Heilongjiang, Gansu province. Relevant information of the participants were collected via face-to-face surveys with a self-designed questionnaire from December 2021 to March 2022 and analyzed using descriptive statistics and logistic regression. ResultsMultimorbidity was reported by 3235 (51.93%) of the 6230 patients with eligible responses. The top three most reported multimorbidities were hypertension (reported by 44.77% of the patients), coronary heart disease (12.34%) and stroke (4.65%) and the number (proportion) of the patients with one, two, and three or more multimorbidities were 2190 (35.15%), 754 (12.10%), and 291 (4.67%), respectively, with the most prevalent multimorbidity of diabetes and hyperten-sion reported by 29.15% of the patients. Multivariate unconditional logistic regression analysis indicated that aged 45 years and older, living in northern regions, having alcohol consumption and a diabetes duration of 10 years and more were significant risk factors for multimorbidity; whereas, being married was a significant protective factor. ConclusionThe prevalence of chronic disease comorbidity is relatively high and mainly influenced by age, marital status, living region, alcohol consumption and diabetes duration among community diabetic patients in urban and rural areas of six PLADs in China.
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- 2023
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45. Effects of Agaricus blazei polypeptide on cell senescence by regulation of Keap1/Nrf2/ARE and TLR4/NF-κBp65 signaling pathways and its mechanism in D-gal-induced NIH/3T3 cells
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Guangxin Yuan, Feng Qingxia, Qian Zhang, Xuechun Lu, and Liping An
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0301 basic medicine ,Aging ,Antioxidant ,genetic structures ,medicine.medical_treatment ,Cell ,Medicine (miscellaneous) ,ABp-RQR ,Cell morphology ,medicine.disease_cause ,TLR4/NF-κBp65 ,3T3 cells ,03 medical and health sciences ,0404 agricultural biotechnology ,Western blot ,medicine ,TX341-641 ,030109 nutrition & dietetics ,Nutrition and Dietetics ,medicine.diagnostic_test ,Nutrition. Foods and food supply ,Chemistry ,Nrf2/ARE ,Agaricus blazei ,04 agricultural and veterinary sciences ,040401 food science ,medicine.anatomical_structure ,Biochemistry ,TLR4 ,Signal transduction ,Oxidative stress ,Food Science - Abstract
Agaricus blazei is a kind of fungus plant with an edible as well as a medicinal use. Previous experiments have shown its crude peptide to possess an obvious anti-aging effect. In the present study three active components viz. ABp-RRQ, ABp-RQR and ABp-TRAR were obtained from the Agaricus blazei polypeptide. ABp-RQR was the main active component with a molecular weight of 458 Dalton, and HPLC confirmed it’s a purity > 98%. When the D-galactose(D-gal)-induced NIH/3T3 cells were treated with ABp-RQR, changes were observed in the oxidative stress activities and the contents of inflammatory factors. Cell morphology and the percentage of positive cells were observed using the β-galactosidase staining. Western blot was used to detect the expression levels of the proteins modulated in the inflammatory and antioxidant signaling pathways. Our study suggests that ABp-RQR may play an anti-aging role by alleviating the oxidative inflammatory reactions in D-gal-induced NIH/3T3 cells.
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- 2020
46. Downregulation of solute carriers of glutamate in gliosomes and synaptosomes may explain local brain metastasis in anaplastic glioblastoma
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Peng Wang, Xinguang Yu, Xuechun Lu, and Huaiyu Tong
- Subjects
biology ,Clinical Biochemistry ,SLC1A2 ,Glutamate receptor ,Cell Biology ,Biochemistry ,Solute carrier family ,Riluzole ,Glutamine ,Downregulation and upregulation ,Genetics ,biology.protein ,Cancer research ,Extracellular ,medicine ,Molecular Biology ,Intracellular ,medicine.drug - Abstract
Advanced grades of glioblastoma are highly aggressive, especially in terms of multisite spread within the brain or even to distant sites at the spinal cord. In advanced grades of glioblastoma, glutamate and glutamine are reported to be increased in concentration in the extracellular fluid. It has been reported that glutamate acts as an extracellular signaling molecule for facilitating local spread of advanced grades of glioblastoma. In the present study, we aimed to examine whether glutamate uptake mechanisms is impaired in advanced glioblastoma. The possible downregulated mechanisms of glutamate uptake would facilitate persistence of glutamate in the extracellular environment, rather than intracellular uptake. We obtained biobanked human specimens of glioblastoma and tested expression of proteins belonging to the solute carrier families of proteins that are known to function as membrane-located excitatory amino acid like glutamate transporters. The present study provides preliminary evidence of the downregulation of membrane expression of excitatory amino acid transporters solute carrier family 1 member 3 (SLC1A3) and its palmitoylated form in gliosomes, as well as SLC1A2 in the glio-synaptosomes. Compounds like riluzole used in the treatment of amyotrophic lateral sclerosis and the antibiotic ceftriaxone have the potential to facilitate glutamate uptake. These medications may be examined as adjunct chemotherapy in the massively aggressive tumor glioblastoma multiforme.
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- 2015
47. Protective effect of Schisandra chinensis extracts against H2O2-induced oxidative damage in RINm5F cells
- Author
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Meitong Pan, Peige Du, Xuechun Lu, Yunpeng Sun, Hui Yang, Yingnuo Li, Gong Lulu, Wei Dong, and Guangxin Yuan
- Subjects
Lignan ,biology ,Schisandra chinensis ,Pharmaceutical Science ,Pharmacology ,Schisandrin ,biology.organism_classification ,Malondialdehyde ,medicine.disease_cause ,High-performance liquid chromatography ,Superoxide dismutase ,chemistry.chemical_compound ,chemistry ,Drug Discovery ,biology.protein ,medicine ,Oxidative stress ,Intracellular - Abstract
Objective: To study the protective effect of Schisandra chinensis extracts (SCEs) on the RINm5F cells against H2O2-induced oxidative damage and to provide a basis for the study of the role of SCEs in the prevention and treatment of diabetic oxidative stress. Materials and Methods: We performed ultrasonic preparation of SCEs and verified the presence of 8 lignans by high-performance liquid chromatography (HPLC). An in vitro model of H2O2-induced oxidative damage was established using RINm5F cells and treated with various concentrations of SCEs (high dose, medium dose, and low dose). The antioxidative activity of SCEs was observed and its mechanisms were investigated by 3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide assay, and measuring malondialdehyde (MDA) and superoxide dismutase assay (SOD) according to the instructions of kits. Results: The total lignan content in SCEs was 18.86 mg/mL; the concentration of 8 kinds of lignans were schisandrin, 5.99 mg/mL; schisandrol B, 3.27 mg/mL; schisantherin A, 1.99 mg/mL; schisanhenol, 0.94 mg/mL; anwulignan, below the detection limit; deoxyschisandrin, 1.33 mg/mL; schisandrin B, 3.95 mg/mL; and schisandrin C, 1.39 mg/mL. SCEs promoted proliferation of islet cells and exhibited a protective effect against H2O2-induced oxidative damage in islet cells. The cell survival rates in the high-dose and medium-dose SCEs groups were greater than that in the model group by 63.4% and 45.6%, respectively; the protective effect of SCEs against oxidative damage was dose dependent. The intracellular MDA content was significantly decreased (P Abbreviation used: Schisandra chinensis Extracts (SCEs).
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- 2019
48. Chimeric Antigen Receptors Modified T-Cells for Cancer Therapy
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Weidong Han, Xuechun Lu, Hanren Dai, and Yao Wang
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0301 basic medicine ,Cancer Research ,medicine.drug_class ,T-Lymphocytes ,medicine.medical_treatment ,Antigens, CD19 ,Receptors, Antigen, T-Cell ,Review ,Monoclonal antibody ,Immune tolerance ,03 medical and health sciences ,Antigen ,Neoplasms ,Immune Tolerance ,Animals ,Humans ,Medicine ,Receptor ,Clinical Trials as Topic ,Evidence-Based Medicine ,Chimera ,business.industry ,Syndrome ,Immunotherapy ,T lymphocyte ,Chimeric antigen receptor ,030104 developmental biology ,Oncology ,Hematologic Neoplasms ,Immunology ,Cancer research ,Cytokines ,Signal transduction ,business ,Signal Transduction - Abstract
The genetic modification and characterization of T-cells with chimeric antigen receptors (CARs) allow functionally distinct T-cell subsets to recognize specific tumor cells. The incorporation of costimulatory molecules or cytokines can enable engineered T-cells to eliminate tumor cells. CARs are generated by fusing the antigen-binding region of a monoclonal antibody (mAb) or other ligand to membrane-spanning and intracellular-signaling domains. They have recently shown clinical benefit in patients treated with CD19-directed autologous T-cells. Recent successes suggest that the modification of T-cells with CARs could be a powerful approach for developing safe and effective cancer therapeutics. Here, we briefly review early studies, consider strategies to improve the therapeutic potential and safety, and discuss the challenges and future prospects for CAR T-cells in cancer therapy.
- Published
- 2016
49. Repeated transfusions of autologous cytokine-induced killer cells for treatment of haematological malignancies in elderly patients: a pilot clinical trial
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Yao Wang, Bo Yang, Yang Liu, Xiao-Hua Chi, Li-Li Cai, Rui-li Yu, Xuechun Lu, Hanren Dai, Hong-Li Zhu, and Weidong Han
- Subjects
Cancer Research ,Chemotherapy ,medicine.medical_specialty ,Cytokine-induced killer cell ,business.industry ,medicine.medical_treatment ,Salvage therapy ,Hematology ,General Medicine ,Immunotherapy ,medicine.disease ,Peripheral blood mononuclear cell ,Gastroenterology ,Autologous Cytokine-induced Killer Cells ,Leukemia ,Regimen ,Oncology ,Internal medicine ,Immunology ,medicine ,business - Abstract
The elderly population is susceptible to haematological malignancies, and these elderly patients are intolerant to cytotoxic drugs. Therefore, the exploration of a safe and reliable strategy exclusive of chemotherapy is critical in improving the prognosis of elderly patients with haematological malignancies. We evaluated the safety and the efficacy of autologous cytokine-induced killer (CIK) cells combined with recombinant human interleukin 2 (rhIL-2) in the treatment of haematological malignancies in elderly patients. Peripheral blood mononuclear cells were isolated from 20 elderly patients with haematological malignancies, then augmented by priming with interferon gamma, rhIL-2 and CD3 monoclonal antibody. The autologous CIK cells (2-3 × 10(9)) were transfused back to patients, followed by a subcutaneous injection of IL-2 (1 mU/day) for 10 consecutive days. The regimen was repeated every 4 weeks. The host cellular immune function, tumour-related biological parameters, imaging characteristics, disease condition, quality of life and survival time were assessed. Fourteen patients received 8 cycles of transfusion and 6 received 4 cycles. No adverse effects were observed. The percentages of CD3(+), CD3(+) CD8(+) and CD3(+) CD56(+) cells were significantly increased (p < 0.05), and the levels of serum β2 microglobulin and lactate dehydrogenase (LDH) were markedly decreased (p < 0.05) after autologous CIK cell transfusion. Cancer-related symptoms were profoundly alleviated, as demonstrated by the improved quality of life (p < 0.01). Complete remission was observed in 11 patients, persistent partial remission in 7 patients and stable disease in 2 patients. At the end of follow-up, the mean survival time was 20 months. Transfusion with autologous CIK cells plus rhIL-2 treatment is safe and effective for treating haematological malignancies in elderly patients.
- Published
- 2011
50. Analysis on Game Evolution of Latecomer Prefabricated Building Firm from the Perspective of Population Ecology
- Author
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Zaohong Zhou and Xuechun Luo
- Subjects
Prefabricated building ,Latecomer firm ,Tripartite game ,Evolutionarily stable strategy (ESS) ,Industrial development ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Based on the research and development (R&D) state of prefabricated buildings, this paper establishes an evolutionary game model involving such three parties as latecomer prefabricated building firm (LPBF), related firm, and university-research institute, and simulates the evolutionary results of the game to determine the evolutionarily stable strategy (ESS) of the game. The results show that: In the tripartite system evolution, the evolution and trend of each party are closely related with the strategies chosen by the other two parties; eventually, the LPBF strategy always converges to R&D, while the strategies of related firm, and university-research institute always converge to cooperation in R&D. Whether the game system converges to the desired equilibrium state hinges on the R&D profit and cost of, and opportunistic profit from subsequent cooperation with the LPBF. During the development of prefabricated buildings, the game parties should promote the high-quality development of the industry by stepping up technological R&D, forging a complete industrial chain, and implementing industry-university-research cooperation.
- Published
- 2022
- Full Text
- View/download PDF
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