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Cheng Y, Fan Y, Zhao Y, Huang D, Li X, Zhang P, Kang M, Yang N, Zhong D, Wang Z, Yu Y, Zhang Y, Zhao J, Qin T, Chen C, Leaw S, Zheng W, Song Y. Tislelizumab Plus Platinum and Etoposide Versus Placebo Plus Platinum and Etoposide as First-Line Treatment for Extensive-Stage SCLC (RATIONALE-312): A Multicenter, Double-Blind, Placebo-Controlled, Randomized, Phase 3 Clinical Trial. J Thorac Oncol 2024:S1556-0864(24)00115-1. [PMID: 38460751 DOI: 10.1016/j.jtho.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/26/2024] [Accepted: 03/05/2024] [Indexed: 03/11/2024]
Abstract
INTRODUCTION Extensive-stage SCLC (ES-SCLC) prognosis remains poor. The phase 3 RATIONALE-312 study aimed to evaluate the efficacy and safety of tislelizumab plus chemotherapy as first-line treatment for ES-SCLC. METHODS RATIONALE-312 is a randomized, double-blind, placebo-controlled trial, conducted in the People's Republic of China. Eligible patients with previously untreated ES-SCLC were randomized 1:1 to receive four cycles of tislelizumab 200 mg or placebo, with etoposide plus carboplatin or cisplatin intravenously every 3 weeks, followed by tislelizumab 200 mg or placebo as maintenance. The primary end point was overall survival (OS). Secondary end points included progression-free survival and safety. RESULTS Between July 22, 2019 and April 21, 2021, 457 patients were randomized to tislelizumab (n = 227) or placebo (n = 230), plus chemotherapy. Baseline demographics were generally balanced between arms. At the data cutoff (April 19, 2023), the median study follow-up was 14.2 months (interquartile range: 8.6-25.3). Tislelizumab plus chemotherapy exhibited a statistically significant OS benefit versus placebo plus chemotherapy (stratified hazard ratio = 0.75 [95% confidence interval (CI): 0.61-0.93]; one-sided p = 0.0040; median: 15.5 [95% CI: 13.5-17.1] versus 13.5 mo [95% CI: 12.1-14.9], respectively). Progression-free survival was significantly improved in the tislelizumab versus placebo arm (stratified hazard ratio = 0.64 [95% CI: 0.52-0.78]; p < 0.0001; median: 4.7 [95% CI: 4.3-5.5] versus 4.3 mo [95% CI: 4.2-4.4], respectively). Grade greater than or equal to 3 treatment-related adverse events were reported in 86% of patients in each treatment arm and were mostly hematologic. CONCLUSIONS Tislelizumab plus chemotherapy exhibited statistically significant clinical benefit and manageable safety compared with placebo plus chemotherapy as first-line treatment in patients with advanced ES-SCLC.
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Affiliation(s)
- Ying Cheng
- Department of Thoracic Oncology, Jilin Cancer Hospital, Changchun, People's Republic of China.
| | - Yun Fan
- Department of Thoracic Oncology, Zhejiang Cancer Hospital, Hangzhou, People's Republic of China
| | - Yanqiu Zhao
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital, Zhengzhou, People's Republic of China
| | - Dingzhi Huang
- Pulmonary Oncology Department, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Xingya Li
- Department of Medical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, People's Republic of China
| | - Peng Zhang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Mafei Kang
- Department of Medical Oncology, The Affiliated Hospital of Guilin Medical University, Guilin, People's Republic of China
| | - Nong Yang
- Lung Cancer and Gastrointestinal Unit, Department of Medical Oncology, Hunan Cancer Hospital/The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, People's Republic of China
| | - Diansheng Zhong
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin, People's Republic of China
| | - Zhen Wang
- Guangdong Lung Cancer Institute, Guangdong Provincial Key Laboratory of Translational Medicine in Lung Cancer, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, People's Republic of China
| | - Yan Yu
- Harbin Medical University Cancer Hospital, Harbin, People's Republic of China
| | - Yu Zhang
- Department of Respiratory Medicine, Nanjing Chest Hospital, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, People's Republic of China
| | - Jun Zhao
- Department of Thoracic Oncology, Beijing Cancer Hospital, Beijing, People's Republic of China
| | - Tai Qin
- Clinical Development, Solid Tumors, BeiGene (Beijing) Co., Ltd., Beijing, People's Republic of China
| | - Chenqi Chen
- Statistics, BeiGene (Shanghai) Co., Ltd., Shanghai, People's Republic of China
| | - Shiangjiin Leaw
- Statistics, BeiGene (Shanghai) Co., Ltd., Shanghai, People's Republic of China
| | - Wenjuan Zheng
- Clinical Development, Solid Tumors, BeiGene (Beijing) Co., Ltd., Beijing, People's Republic of China
| | - Yong Song
- Department of Respiratory and Critical Care Medicine, Jinling Hospital, Nanjing Medical University, Nanjing, People's Republic of China
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Jin XJ, Teng ZQ, Xu PX, Sun XR, Wang W, Qin XC, Qin T. [Simultaneous detection of 7 important Rickettsiales pathogens by TaqMan-probe quantitative real-time PCR]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:816-822. [PMID: 37221073 DOI: 10.3760/cma.j.cn112338-20221011-00875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Objective: To establish and optimize a TaqMan-probe quantitative real-time PCR (qPCR) assay for the detection of 7 important Rickettsiales pathogens and simultaneous identification of the infection types. Methods: Based on the ompB gene of Rickettsia prowazekii, Rickettsia mooseri and spotted fever group rickettsiae, the groEL gene of Orientia tsutsugamushi, the 16S rRNA of Ehrlichia chaffeensis, the gltA gene of Anaplasma phagocytophilum and the com1 gene of Coxiella burnetii, we synthesized primers and TaqMan-probes and optimized the reaction system and reaction process to same solution. The sensitivity, specificity and reproducibility of this assay were evaluated and the assay was used for the detection of simulated and actual samples. Results: The Ct value of the standard curves of the 7 pathogens showed a good linear relationship with the number of DNA copies (all R2 >0.990 0), the minimum detection limit was 10 copies/μl, showing good specificity. In the 96 tick nucleic acid extracts, Coxiella burnetii was detected in 1 sampleand spotted fever group Rickettsiae was detected in 3 samples. In the 80 blood samples from patients with undefined febrile illness, Orientia tsutsugamushi was detected in 1 sample and spotted fever group rickettsiae was detected in 2 samples. Conclusions: In this study, based on the established TaqMan-probe qPCR assay, the reaction system and reaction condition of the 7 important pathogens of Rickettsiales were optimized to the same solution. This method overcomes the shortcomings of using different reaction systems and reaction conditions for different pathogens, which can precisely identify the species of 7 important pathogens of Rickettsiales in clinical sample detections and is important for the infection type identification and laboratory detection time reduction to facilitate precise treatment of the patients.
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Affiliation(s)
- X J Jin
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Z Q Teng
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - P X Xu
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X R Sun
- Nanchang Center for Disease Control and Prevention, Nanchang 330038, China
| | - W Wang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - X C Qin
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - T Qin
- Department of Epidemiology, School of Public Health, Shanxi Medical University, Taiyuan 030001, China National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
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Peng XR, Chang YN, Qin T, Shang TT, Xu HM. [Advances in clinical diagnosis and treatment of drug-induced liver injury in children]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:440-444. [PMID: 37248985 DOI: 10.3760/cma.j.cn501113-20220309-00105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Drug-induced liver injury (DILI) is one of the most common adverse drug reactions that may seriously threaten the health of children and is receiving increasing clinical attention day by day. There is still no independent diagnosis and treatment guideline for DILI in children, but its clinical features are not completely similar to those in adults. This article reviews the epidemiology, clinical features, diagnosis, and treatment progress in order to provide a reference for the management of DILI in children.
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Affiliation(s)
- X R Peng
- Department of Infectious Disease, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - Y N Chang
- Department of Infectious Disease, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - T Qin
- Department of Infectious Disease, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - T T Shang
- Department of Infectious Disease, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
| | - H M Xu
- Department of Infectious Disease, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing 400014, China
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Han L, Zhang YF, Teng ZQ, Kan B, Qin T. [Epidemiological characteristics of typhus in China, 1950-2021]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:430-437. [PMID: 36942338 DOI: 10.3760/cma.j.cn112338-20220805-00690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Objective: To analyze the epidemiological characteristics of typhus in China from 1950 to 2021, and discuss the challenges in typhus prevention and control in China and suggest future prevention and control strategies. Methods: Based on the reported data of typhus from 1950 to 2021 in China from the Infectious Disease History Database of China Public Health Science Data Center and the National Notifiable Infectious Disease Reporting Information System of Chinese Center for Disease Control and Prevention, we conducted a descriptive statistical analysis. Mann-Kendall test and circular distribution method were used to analyze the incidence, mortality and case fatality of typhus to reveal the temporal, spatial and population distributions and diagnosis of typhus in China. Results: From 1950 to 2021, a total of 452 965 typhus cases and 7 339 typhus deaths were reported in China, with the cases numbers exceeding 10 000 in 14 years of the 1950s, 1960s and 1980s, respectively. Since 1990s, the reported cases and incidence rate of typhus have decreased dramatically and the most cases were sporadic. However, the reported typhus cases in Anhui, Hubei, Hunan Provinces showed significant uptrends. Although typhus could occur all the year round, but the seasonality was observed with the incidence mainly in summer and autumn. For different provinces from the north to the south, the peaks of typhus' monthly incidence tended to shift to earlier dates. The male to female ratio of the cases was 1.01∶1 (18 529∶18 366). However, more cases occurred in women in recent years. The cases aged ≤9 years accounted for the highest proportion (18.9%), but the number of cases aged ≥50 years showed an upward trend. Most cases were farmers with the proportion increasing year by year. Moreover, the cases in students and scattered-living children also accounted for relatively higher proportions. The median of the interval between onset and diagnosis of typhus was 6 days. Most cases were clinically diagnosed, while the proportion of laboratory-confirmed cases was low and most laboratory cases were confirmed by Well-Felix reaction. Conclusions: Although the incidence and mortality of typhus in China has decreased significantly, the risk for local typhus outbreaks still exists. The prevention and control of typhus still face many challenges. It is indispensable to strengthen the pathogen detection and surveillance for typhus in China.
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Affiliation(s)
- L Han
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - Y F Zhang
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - Z Q Teng
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - B Kan
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
| | - T Qin
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention/State Key Laboratory of Infectious Disease Prevention and Control, Beijing 102206, China
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Yao G, Zhu C, Qin T, Wang M, Sun Z, Tang R, Zhao C, Jiang H, Xu H. Oxidative Annulation of Aldehydes, 5‐Aminopyrazoles, and Nitriles: Synthesis and Applications of Pyrazolo[3,4‐
d
]Pyrimidines. Adv Synth Catal 2023. [DOI: 10.1002/adsc.202300189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- G. Yao
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - C. Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology 510640 Guangzhou People's Republic of China
| | - T. Qin
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - M. Wang
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - Z. Sun
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - R.‐Y. Tang
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - C. Zhao
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - H. Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology 510640 Guangzhou People's Republic of China
| | - H. Xu
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
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Li J, Chu R, Wang Z, Chen G, Shen Y, Lou Y, Li L, Sun C, Li K, Song L, Qin T, Li J, Yin Y, Chen Z, Liu P, Song K, Kong B. Analysis of the Safety and Pregnancy Outcomes of Fertility-sparing Surgery in Ovarian Malignant Sex Cord-stromal Tumours: A Multicentre Retrospective Study. Clin Oncol (R Coll Radiol) 2023; 35:e206-e214. [PMID: 36494251 DOI: 10.1016/j.clon.2022.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 10/21/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022]
Abstract
AIMS To assess the difference in survival between fertility-sparing surgery (FSS) and radical surgery and explore pregnancy outcomes after FSS in stage I malignant sex cord-stromal tumours (MSCSTs). MATERIALS AND METHODS We carried out a multicentre retrospective cohort study on patients who were diagnosed with MSCSTs and the tumour was confined to one ovary. The patients were divided into FSS and radical surgery groups. Inverse probability of treatment weighting (IPTW) was used to balance variables between the two groups. Kaplan-Meier analysis was used to compare the difference in disease-free survival (DFS). Univariate and multivariate Cox regression analysis was used to find risk factors of DFS. Univariate logistic regression analysis was used to assess risk factors of pregnancy. RESULTS In total, 107 patients were included, of whom 54 (50.5%) women underwent FSS and 53 (49.5%) received radical surgery. After IPTW, a pseudo-population of 208 was determined and all of the covariates were well balanced. After a median follow-up time of 50 months (range 7-156 months), 10 patients experienced recurrence and two died. There was no significant difference in DFS between the two groups, both in unweighted (P = 0.969) or weighted cohorts (P = 0.792). In the weighted cohort, stage IC (P = 0.014), tumour diameter >8 cm (P = 0.003), incomplete staging surgery (P = 0.003) and no adjuvant chemotherapy (P < 0.001) were the four high-risk factors associated with a shorter DFS. Among 14 patients who had pregnancy desire, 11 (78.6%) women conceived successfully; the live birth rate was 76.9%. In univariate analysis, only adjuvant chemotherapy (P = 0.009) was associated with infertility. CONCLUSIONS On the premise of complete staging surgery, FSS is safe and feasible in early stage MSCSTs with satisfactory reproductive outcomes.
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Affiliation(s)
- J Li
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - R Chu
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Z Wang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - G Chen
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Y Shen
- Department of Gynecologic Oncology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, PR China
| | - Y Lou
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China
| | - L Li
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China; Gynecology Oncology Key Laboratory, Qilu Hospital of Shandong University, Jinan, Shandong, PR China.
| | - C Sun
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - K Li
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - L Song
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China; Gynecology Oncology Key Laboratory, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - T Qin
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - J Li
- Department of Gynecologic Oncology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, PR China
| | - Y Yin
- Department of Gynecology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, PR China
| | - Z Chen
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - P Liu
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - K Song
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China; Gynecology Oncology Key Laboratory, Qilu Hospital of Shandong University, Jinan, Shandong, PR China.
| | - B Kong
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China; Gynecology Oncology Key Laboratory, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
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Wang W, Zhang YH, Yang TT, Li N, Luo QK, Qin T, Lei L. [Comparison of three different measurement methods to determine resting energy expenditure in patients with decompensated hepatitis B cirrhosis]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:65-69. [PMID: 36948851 DOI: 10.3760/cma.j.cn501113-20210906-00455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Objective: To compare the differences to determine resting energy expenditure (REE) measured with indirect calorimetry and REE predicted by formula method and body composition analyzer in patients with decompensated hepatitis B cirrhosis, so as to provide theoretical guidance for the implementation of precision nutrition intervention. Methods: Patients with decompensated hepatitis B cirrhosis who were admitted to Henan Provincial People's Hospital from April 2020 to December 2020 were collected. REE was determined by the body composition analyzer and the H-B formula method. Results: were analyzed and compared to REE measured by the metabolic cart. Results A total of 57 cases with liver cirrhosis were included in this study. Among them, 42 were male, aged (47.93 ± 8.62) years, and 15 were female aged (57.20 ± 11.34) years. REE measured value in males was (1 808.14 ± 201.47) kcal/d, compared with the results calculated by the H-B formula method and the measured result of body composition, and the difference was statistically significant (P = 0.002 and 0.003, respectively). REE measured value in females was (1 496.60 ± 131.28) kcal/d, compared with the results calculated by the H-B formula method and the measured result of body composition, and the difference was statistically significant (P = 0.016 and 0.004, respectively). REE measured with the metabolic cart had correlation with age and area of visceral fat in men (P = 0.021) and women (P = 0.037). Conclusion: Metabolic cart use will be more accurate to obtain resting energy expenditure in patients with decompensated hepatitis B cirrhosis. Body composition analyzer and formula method may underestimate REE predictions. Simultaneously, it is suggested that the effect of age on REE in H-B formula should be fully considered for male patients, while the area of visceral fat may have a certain impact on the interpretation of REE in female patients.
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Affiliation(s)
- W Wang
- Department of Nutrition, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450000, China
| | - Y H Zhang
- Department of Nutrition, The Second People's Hospital of Shizuishan, Shizhuishan 753000, China
| | - T T Yang
- Department of Nutrition, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450000, China
| | - N Li
- College of Food Science and Technology, Henan Agricultural University, Zhengzhou 450046, China
| | - Q K Luo
- Department of Hepatobiliary and Pancreatic Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450000, China
| | - T Qin
- Department of Hepatobiliary and Pancreatic Surgery, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450000, China
| | - L Lei
- Department of Gastroenterology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou 450000, China
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Qin T, Xu HM. [Antibiotic therapy in pediatric bacterial gastroenteritis]. Zhonghua Er Ke Za Zhi 2022; 60:852-854. [PMID: 35922205 DOI: 10.3760/cma.j.cn112140-20220621-00573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- T Qin
- Department of Infectious Diseases,Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
| | - H M Xu
- Department of Infectious Diseases,Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Infection and Immunity, Chongqing 400014, China
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Tian XY, Duan WJ, Wu XQ, Zhang C, Wang ZW, Cao GH, Ji BQ, Gu Y, Qin T, Yan TZ. [Analysis of the efficacy and safety of low-dose aspirin in preventing renal artery stenosis in kidney transplantation]. Zhonghua Yi Xue Za Zhi 2022; 102:273-278. [PMID: 35073676 DOI: 10.3760/cma.j.cn112137-20210817-01869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the clinical value of aspirin as a prophylactic for transplant renal artery stenosis (TRAS). Methods: From January 2017 to November 2019, clinical data of 307 patients who had undergone renal transplant in Zhengzhou University People's Hospital were collected. Patients were divided into two groups: the treatment group (124 recipients who had taken oral aspirin 100 mg/d after transplant) and the control group (183 recipients who had not taken aspirin after transplant). The general data, incidence of initially diagnosed and confirmed TRAS, type of renal artery anastomosis vessels, duration of stenosis, location of stenosis, and complications were compared between the two groups. The treatment group was further divided into two subgroups, the early group (92 recipients) and the delayed group (32 recipients), according to the time of starting aspirin after operation. Subgroup analysis was performed. Results: Among all 307 patients included, there were 241 males and 66 females, aged 19-64 years. There were no statistical difference between the treatment and control groups in terms of gender, age, comorbidities, number of arterial vessels, type of graft, and acute rejection all P>0.05. Among 46 initially diagnosed TRAS patients, 13 (10.5%) and 33 (18.0%) cases were in the treatment and control group respectively, with no statistically significant difference in stenosis rate (P>0.05). The number of confirmed TRAS patients was 1 (0.8%) and 24 (13.1%) in the treatment and control group respectively, with statistically significant difference in stenosis rate (P<0.001). The proportion of patients with bleeding disorders in the treatment group was slightly higher than that in the control group (13.7% vs 8.7%), and the proportion of infarct diseases was slightly lower than that in the control group (1.6% vs 4.9%). But there was no significant difference in aspirin-related complications between the two groups (P>0.05). Subgroup analysis showed that there was no significant difference in initially diagnosed and confirmed TRAS and aspirin-related complications between the early group and the delayed group (all P>0.05). Conclusions: Oral low-dose aspirin after kidney transplantation can effectively reduce the incidence of TRAS, without increasing the risk of aspirin-related complications.
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Affiliation(s)
- X Y Tian
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - W J Duan
- Department of Clinical Medical Research Center, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - X Q Wu
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - C Zhang
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - Z W Wang
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - G H Cao
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - B Q Ji
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - Y Gu
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
| | - T Qin
- Department of Hepatobilliary and Pancreatic surgery, Zhengzhou University People's Hospital, Zhengzhou 450003, China
| | - T Z Yan
- Department of Urology, Zhengzhou University People's Hospital, Henan Provincial Clinical Research Center for Kidney Disease, Zhengzhou 450003, China
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10
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Burleson M, Deng JJ, Qin T, Duong TM, Yan Y, Gu X, Das D, Easley A, Liss MA, Yew PR, Bedolla R, Kumar AP, Huang THM, Zou Y, Chen Y, Chen CL, Huang H, Sun LZ, Boyer TG. GLI3 Is Stabilized by SPOP Mutations and Promotes Castration Resistance via Functional Cooperation with Androgen Receptor in Prostate Cancer. Mol Cancer Res 2022; 20:62-76. [PMID: 34610962 PMCID: PMC9258906 DOI: 10.1158/1541-7786.mcr-21-0108] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 08/24/2021] [Accepted: 09/28/2021] [Indexed: 11/16/2022]
Abstract
Although the Sonic hedgehog (SHH) signaling pathway has been implicated in promoting malignant phenotypes of prostate cancer, details on how it is activated and exerts its oncogenic role during prostate cancer development and progression is less clear. Here, we show that GLI3, a key SHH pathway effector, is transcriptionally upregulated during androgen deprivation and posttranslationally stabilized in prostate cancer cells by mutation of speckle-type POZ protein (SPOP). GLI3 is a substrate of SPOP-mediated proteasomal degradation in prostate cancer cells and prostate cancer driver mutations in SPOP abrogate GLI3 degradation. Functionally, GLI3 is necessary and sufficient for the growth and migration of androgen receptor (AR)-positive prostate cancer cells, particularly under androgen-depleted conditions. Importantly, we demonstrate that GLI3 physically interacts and functionally cooperates with AR to enrich an AR-dependent gene expression program leading to castration-resistant growth of xenografted prostate tumors. Finally, we identify an AR/GLI3 coregulated gene signature that is highly correlated with castration-resistant metastatic prostate cancer and predictive of disease recurrence. Together, these findings reveal that hyperactivated GLI3 promotes castration-resistant growth of prostate cancer and provide a rationale for therapeutic targeting of GLI3 in patients with castration-resistant prostate cancer (CRPC). IMPLICATIONS: We describe two clinically relevant mechanisms leading to hyperactivated GLI3 signaling and enhanced AR/GLI3 cross-talk, suggesting that GLI3-specific inhibitors might prove effective to block prostate cancer development or delay CRPC.
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Affiliation(s)
- Marieke Burleson
- Department of Molecular Medicine, UT Health San Antonio, San Antonio, Texas
| | - Janice J Deng
- Department of Cell Systems & Anatomy, UT Health San Antonio, San Antonio, Texas
| | - Tai Qin
- Department of Cell Systems & Anatomy, UT Health San Antonio, San Antonio, Texas
| | - Thu Minh Duong
- Department of Molecular Medicine, UT Health San Antonio, San Antonio, Texas
| | - Yuqian Yan
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Xiang Gu
- Department of Cell Systems & Anatomy, UT Health San Antonio, San Antonio, Texas
| | - Debodipta Das
- Department of Cell Systems & Anatomy, UT Health San Antonio, San Antonio, Texas
| | - Acarizia Easley
- Department of Cell Systems & Anatomy, UT Health San Antonio, San Antonio, Texas
| | - Michael A Liss
- Department of Urology, UT Health San Antonio, San Antonio, Texas
| | - P Renee Yew
- Department of Molecular Medicine, UT Health San Antonio, San Antonio, Texas
| | - Roble Bedolla
- Department of Urology, UT Health San Antonio, San Antonio, Texas
| | | | - Tim Hui-Ming Huang
- Department of Molecular Medicine, UT Health San Antonio, San Antonio, Texas
| | - Yi Zou
- Greehey Children's Cancer Research Institute, UT Health San Antonio, San Antonio, Texas
| | - Yidong Chen
- Greehey Children's Cancer Research Institute, UT Health San Antonio, San Antonio, Texas
| | - Chun-Liang Chen
- Department of Molecular Medicine, UT Health San Antonio, San Antonio, Texas
| | - Haojie Huang
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Lu-Zhe Sun
- Department of Cell Systems & Anatomy, UT Health San Antonio, San Antonio, Texas.
| | - Thomas G Boyer
- Department of Molecular Medicine, UT Health San Antonio, San Antonio, Texas.
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11
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Huang H, Wu J, Qin T, Xu Z, Qu S, Pan L, Cai W, Liu J, Wang H, Sun Q, Jiao M, Gao Q, Gale R, Xiao Z. Topic: AS01-Diagnosis/AS01c-Molecular aberrations (cytogenetic, genetic, gene expression). Leuk Res 2021. [DOI: 10.1016/j.leukres.2021.106679.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Qin T, Xue JF, Zu L. Structural effect on electron impact decomposition of 1,3- and 1,4-cyclohexane dinitrites. CHINESE J CHEM PHYS 2021. [DOI: 10.1063/1674-0068/cjcp2102024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Tai Qin
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Jun-fei Xue
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lily Zu
- College of Chemistry, Beijing Normal University, Beijing 100875, China
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13
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Duong TM, Burleson MO, Deng JJ, Qin T, D D, Sun LZ, Boyer TG. Abstract 2856: GLI3-mediated HH regulates prostate cancer progression. Cancer Res 2021. [DOI: 10.1158/1538-7445.am2021-2856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Although prostate cancer patients initially respond to androgen deprivation therapy, they eventually progress to lethal castration resistant prostate cancer (CRPC), characterized by restoration of the androgen receptor (AR) signaling despite castrate levels of circulating androgens. Mechanisms proposed to underlie CRPC include AR crosstalk with alternative signaling pathways. Among these, the Sonic hedgehog (SHH)Hedgehog (HH) pathway, an essential signaling axis in prostate development and homeostasis, has been implicated in prostate cancerCRPC progression. SHH pathway is regulated by transcription factors and effectors Glioma-associated oncogene family zinc finger (GLI) proteins 1, 2, and 3. Previous studies reported that GLI1 and GLI2 drive androgen-independent growth of prostate cancer by upregulating androgen-stimulated genes. However, whether and how GLI3 plays a role in prostate cancer progression remains unclear. In the present study, we investigated the role of GLI3 in the progression of prostate cancer cells. Like GLI2, GLI3 is the a downstream transcriptional factor effector of the SHH signaling pathway that can exist as a full-length activator form or a cleaved repressor form. Our data showed an increase in GLI3 expression in prostate cancer cells growing under androgen deprived conditions. Thuserefore, we hypothesize that androgen deprivation leads to activation of the SHH signaling pathway which consequently activates GLI3 to promote androgen-independent growth of prostate cancer cells. We showed that knockdown of GLI3 repressed while overexpression of GLI3 promoted androgen-independent growth of prostate cancer cells. GLI3 knockdown also resulted in regression of castration-resistant outgrowth of xenograft tumors in mice. Additionally, transcriptomic analysis of GLI3 knockdown cells revealed that the SHH signaling pathway and epithelial mesenchymal transition (EMT) genes are altered suggesting that GLI3 regulates androgen-independent growth of prostate cancer cells through canonical SHH signaling pathway and likely contributes to prostate cancer metastasis. Lastly, our data demonstrated a physical and functional relationship between GLI3 and AR suggesting a functional crosstalk between SHH signaling and AR signaling pathways in advanced prostate cancer.
Citation Format: Thu Minh Duong, Marieke Oldenbroek Burleson, J J. Deng, T Qin, Das D, L-z Sun, T G. Boyer. GLI3-mediated HH regulates prostate cancer progression [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 2856.
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Affiliation(s)
- Thu Minh Duong
- 1University of Texas Health San Antonio, San Antonio, TX
| | | | - J J. Deng
- 1University of Texas Health San Antonio, San Antonio, TX
| | - T Qin
- 1University of Texas Health San Antonio, San Antonio, TX
| | - Das D
- 1University of Texas Health San Antonio, San Antonio, TX
| | - L-z Sun
- 1University of Texas Health San Antonio, San Antonio, TX
| | - T G. Boyer
- 1University of Texas Health San Antonio, San Antonio, TX
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14
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Yao KH, Qin T, Meng QH. [The origin of the name "100-day cough"]. Zhonghua Yi Shi Za Zhi 2021; 50:355-359. [PMID: 33596612 DOI: 10.3760/cma.j.cn112155-20200506-00061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Many studies in modern times claim that the name " 100-day cough" is from traditional Chinese medicine, and even think that there is a description of pertussis as early as the Sui Dynasty classics. By reviewing the original texts of the classics, we found that these interpretations are not exactly. The description of the pertussis and the chronological distribution of the literature in traditional Chinese books are similar to those of Western medicine. They started about 500 years ago, and then become more detailed and specific. The domestic medical community has a variety of nomenclature for this disease, and there is no sign or evidence to uniformly use "100-day cough" as the disease name. The literature records suggest that "100-day cough" first became a more recognized disease name in Japan, and through the direct input of medical education, entered the modern medical textbooks of western medicine in China.
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Affiliation(s)
- K H Yao
- Laboratory of Microbiology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University; National Center for Children's Health, Beijing 100045, China
| | - T Qin
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Q H Meng
- Laboratory of Microbiology, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University; National Center for Children's Health, Beijing 100045, China
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15
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Cheng W, Duan J, Ge M, Yang L, Qin T, Wang H, Bei T, Han-Zhang H. P35.11 Molecular Profiling Can Distinguish Multiple Lung Primary Tumors From Intrapulmonary Metastases. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Xue J, Qin T, Zu L. Intramolecular charge transfer excitation induced by CH 3O substitution in the 3-methoxy-1-propoxy radical. Phys Chem Chem Phys 2021; 23:2586-2593. [PMID: 33474557 DOI: 10.1039/d0cp06094a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The oxy-substituted alkoxy radicals are generated from the oxidation of ethers. Their degradation path affects ozone production and the formation of the secondary organic aerosol in the atmosphere. In this work, three alkoxy radicals with methoxy (CH3O) substitution at β, γ, and δ carbon are studied using laser-induced fluorescence (LIF) spectroscopy and theoretical calculation methods. A charge transfer (CT) excited state induced by the CH3O substitution is identified to be because of the intramolecular electron transfer from the C-O-C p orbital to the radical O p orbital. Comparison of the structure and CT transition strength between GGt and TTt conformers of the 3-methoxy-1-propoxy radical (CH3OCH2CH2CH2O) suggests that this long-range charge transfer effect is mainly a through-bond interaction. The CT excited state of CH3OCH2CH2CH2O has a conical intersection with the CO σ → O p excited state, which, hence, changes the LIF spectrum of the radical. Only the decomposition product HCHO was observed in the LIF spectrum of β substituted radical CH3OCH2CH2O. For δ substituted radical CH3OCH2CH2CH2CH2O, the substitution effect on the radical stability is negligible and its LIF spectrum is close to that of unsubstituted alkoxy radicals. The results provide information for understanding the degradation chemistry of oxygenated hydrocarbon molecules in the atmosphere.
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Affiliation(s)
- Junfei Xue
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China.
| | - Tai Qin
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China.
| | - Lily Zu
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China.
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17
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Wu HW, Sun L, Zhang L, Xi ZL, Qin T, Wang CT, Li DM. [Clinical analysis of 30 cases of traumatic aortic injury]. Zhonghua Wai Ke Za Zhi 2020; 58:929-935. [PMID: 33249811 DOI: 10.3760/cma.j.cn112139-20200101-00001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the clinical treatment methods and short- and mid-term results of traumatic aortic injury (TAI). Methods: The clinical data of 30 patients suffering from TAI who were admitted to Department of Cardiothoracic Surgery, General Hospital of Eastern Theater Command from January 2010 to December 2018 were summarized and analyzed retrospectively. All patients were diagnosed as TAI by aortic CT angiography. There were 20 males and 10 females, aging (46.4±15.2) years (range: 17 to 76 years). One patient was diagnosed as extensive intramural hematoma (IMH). The other 29 cases had aortic intimal injury, and the primary intimal tear of all these patients was located in the isthmus of descending aorta. There were 2 cases of ulcer-like changes combined with IMH, and 27 cases of traumatic aortic dissection (TAD) including 23 cases of localized TAD and 4 cases of extensive TAD. Endovascular repair, artificial vascular replacement or conservative treatment were performed according to the patient's specific condition. The patients were followed up in outpatient or by telephone. The clinical data of all the patients of the in-hospital treatment and during follow-up period was analyzed retrospectively. Results: One patient with IMH was treated conservatively. Surgical intervention was performed in 29 cases with intimal injury, of which 14 cases underwent emergency surgery on the day of admission or the next day, and 15 cases underwent elective surgery. Twenty-seven cases underwent thoracic endovascular aortic repair (TEVAR), and 2 cases underwent artificial vascular replacement. Nine cases suffered combined operations in early or late stage. All patients were cured and discharged with in-hospital stay of (13.2±5.4) days (range: 7 to 30 days). There was no in-hospital death. Two patients underwent tracheotomy, and the rest had no serious complications. Up to the last follow-up in June 2019, 4 patients were lost to follow-up, and the remaining 26 patients were followed up for (50.6±34.1) months (range: 6 to 112 months) and survived healthily without new aortic events. Conclusions: Most of TAD cases are ascribed to Stanford type B aortic dissection, and a satisfactory short-term and mid-term result can be achieved by emergency TEVAR in most patients. Some patients can achieve good long-term results by open surgery with artificial vascular replacement.
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Affiliation(s)
- H W Wu
- Department of Cardiothoracic Surgery, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - L Sun
- Department of Cardiothoracic Surgery, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - L Zhang
- Department of Cardiothoracic Surgery, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - Z L Xi
- Department of Cardiothoracic Surgery, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - T Qin
- Department of Cardiothoracic Surgery, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - C T Wang
- Department of Cardiothoracic Surgery, General Hospital of Eastern Theater Command, Nanjing 210002, China
| | - D M Li
- Department of Cardiothoracic Surgery, General Hospital of Eastern Theater Command, Nanjing 210002, China
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18
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Huang H, Yu H, Li X, Yang W, Shao Y, Liu H, Chen S, Qin T, Lin X, Han-Zhang H, Zhang L, Liu Q, Liu J. Predictive biomarkers for non-muscle invasive bladder cancer patients undergoing BCG treatment. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33496-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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19
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Xia L, Bouamar H, Gu X, Zeballos C, Qin T, Wang B, Zhou Y, Wang Y, Yang J, Zhu H, Zhang W, Houghton PJ, Sun LZ. Gli2 mediates the development of castration‑resistant prostate cancer. Int J Oncol 2020; 57:100-112. [PMID: 32319599 PMCID: PMC7252461 DOI: 10.3892/ijo.2020.5044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 02/10/2020] [Indexed: 12/17/2022] Open
Abstract
Glioma‑associated oncogene family zinc finger 2 (Gli2), a key component of the hedgehog signaling pathway, has been previously demonstrated to promote the malignant properties of prostate cancer in vitro. However, the role of Gli2 in the development of castration‑resistant prostate cancer (CRPC) has yet to be fully elucidated. In the present study, Gli2 expression was knocked down in androgen‑responsive prostate cancer cells using an inducible Gli2 short hairpin RNA. Suppression of Gli2 expression resulted in significant reduction of cell viability, increased the proportion of cells in the G0/G1 phases of the cell cycle and reduced the expression of genes associated with cell cycle progression. Gli2 knockdown sensitized both androgen‑dependent and ‑independent prostate cancer cells to the antiandrogen drug Casodex and prevented the outgrowth of LNCaP prostate cancer cells. In addition, Gli2 knockdown significantly suppressed the development of CRPC in a LNCaP xenograft mouse model, which was reversed by the re‑expression of Gli2. In conclusion, to the best of our knowledge, the present study was the first occasion in which the essential role of Gli2 in the development of CRPC was demonstrated, providing a potential therapeutic target for the intervention of CRPC.
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Affiliation(s)
- Lu Xia
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Hakim Bouamar
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Xiang Gu
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Carla Zeballos
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Tai Qin
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Bingzhi Wang
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - You Zhou
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Yuhui Wang
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Junhua Yang
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Haiyan Zhu
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
| | - Weishe Zhang
- Department of Gynecology and Obstetrics, Xiangya Hospital and Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, P.R. China
| | - Peter J Houghton
- Greehey Children Cancer Research Institute, University of Texas Health Science Center at San Antonio, TX 78229, USA
| | - Lu-Zhe Sun
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX 78229, USA
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20
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Geng TR, Han Y, Qiu ZF, Du TK, Jiang W, Shi JH, Qin T, Fan HW, Li TS. [Characteristics and prognostic value of peripheral blood T lymphocyte subsets in patients with severe influenza]. Zhonghua Nei Ke Za Zhi 2020; 59:200-206. [PMID: 32146746 DOI: 10.3760/cma.j.issn.0578-1426.2020.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the characteristics and prognostic value of peripheral blood T lymphocyte subsets in patients with severe influenza. Methods: This was a single-center cross-sectional study in influenza patients admitted to Peking Union Medical College Hospital from August 2017 to April 2018. Peripheral blood lymphocyte subsets were detected by flow cytometry in both patients and 108 healthy controls. Influenza patients were divided into mild group and severe group. Severe patients were further classified into alive and fatal subgroups. Results: A total of 42 influenza patients were recruited in this study, including 24 severe cases (6 deaths). The remaining 18 cases were mild. The peripheral blood lymphocyte counts and lymphocyte subset counts (B, NK, CD4(+)T, CD8(+)T) in either mild patients[795 (571,1 007), 43 (23,144), 70 (47,135), 330 (256,457), 226 (148,366) cells/μl respectively] or severe patients[661 (474,1 151),92 (52,139), 54 (34,134), 373 (235,555), 180 (105,310) cells/μl respectively] were both significantly lower than those of healthy controls [1 963 (1 603,2 394),179 (119,239), 356 (231,496), 663 (531,824), 481 (341,693) cells/μl respectively]. Meanwhile, the T cells and CD8(+)T counts in fatal patients [370 (260,537) cells/μl and 87 (74,105) cells/μl] were significantly lower than those in severe and alive patients [722 (390,990) cells/μl and 222 (154,404) cells/μl]. CD8(+)HLA-DR/CD8(+)and CD8(+)CD38(+)/CD8(+)T cell activating subgroups in mild cases[(53.7±19.2)% and 74.8% (64.1%,83.7%) respectively] were significantly higher than those in severe cases[(38.5±21.7)% and 53.3% (45.3%,67.2%) respectively].Moreover,CD8(+)HLA-DR/CD8(+)count in severe and alive group was higher than that in fatal group [(46.1±19.1)% vs. (18.2±14.6)%, P<0.01]. Logistic regression analysis showed that CD8(+)T cell count (OR=0.952, 95%CI 0.910-0.997, P=0.035) and CD8(+)HLA-DR/CD8(+)T (OR=0.916, 95%CI 0.850-0.987, P=0.022) were both negatively correlated with mortality.Peripheral blood lymphocyte counts in mild cases rapidly decreased within 1 day after diagnosis, and returned to the basic level one week later. Conclusions: All peripheral blood lymphocyte subsets (T,B,NK) in patients with influenza are significantly reduced. These findings are consistent with the immunological characteristics of respiratory viral infections, in which peripheral lymphocytes (especially T cells) migrate to respiratory tract in the early stage and circulate to the peripheral blood after recovery. The activated CD8(+)T cell counts in peripheral blood are negatively correlated with the severity of disease, which could be considered as a prognostic indicator of severe influenza.
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Affiliation(s)
- T R Geng
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Han
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z F Qiu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T K Du
- Emergency Department, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W Jiang
- Medical Intensive Care Unit, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J H Shi
- Department of Respiration, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T Qin
- National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H W Fan
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - T S Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China;Clinical Immunology Center, Chinese Academy of Medical Sciences, Beijing 100730, China
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Qin T, Li N, Tan XF, Zheng JH, Tao R, Chen MH. Works on heart, how about brain? Effect of hyperkalemia on focal cerebral ischemia/reperfusion injury in rats. Eur Rev Med Pharmacol Sci 2019; 22:2839-2846. [PMID: 29771437 DOI: 10.26355/eurrev_201805_14985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the effects of hyperkalemia on the brain after I/R in h transient middle cerebral artery occlusion (tMCAO) model. MATERIALS AND METHODS A total of 120 adult male SD rats were randomly assigned to four groups: (1) hyperkalemia 80 µg/g (HK80) group; (2) hyperkalemia 40 µg/g (HK40) group; (3) normal saline (NS) group; (4) sham (SH) group. The concentration of serum K+ was elevated in HK80 and HK40 groups. The transient middle cerebral artery occlusion (tMCAO) model was used to assess the effect of hyperkalemia on the brain after I/R. After 24 h reperfusion, the infarct volume and cell damage of rat's I/R brain tissue sections were analyzed. The concentration of K+, Ca2+ and calmodulin (CaM), the activity of Ca-ATPase, the expression of Western blot of Ca2+/calmodulin-dependent protein kinase II (CaMKII) and Na+/Ca2+ exchanger 1 (NCX1), were also measured. RESULTS After 24 h reperfusion, compared with NS group, the two-hyperkalemia groups (HK80 and HK40) were with less infarct volume and cell damage, higher concentration of K+ but lower Ca2+ and CaM compared with NS group. The activity of Ca-ATPase was also elevated, the expression of CaMK II and NCX1 were down-regulated in the two hyperkalemia groups. CONCLUSIONS Hyperkalemia could also ameliorate the brain I/R injury by alleviating calcium overload inhibiting the activity of NCX1, lowering the concentration of Ca2+.
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Affiliation(s)
- T Qin
- Intensive Care Unit, the Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, China.
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Zhao Z, Liu X, Luan C, Liu X, Wang D, Qin T, Sui L, Zhang W. Architecting hierarchical shell porosity of hollow prussian blue-derived iron oxide for enhanced Li storage. J Microsc 2019; 276:53-62. [PMID: 31603242 DOI: 10.1111/jmi.12836] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/12/2019] [Accepted: 10/01/2019] [Indexed: 11/28/2022]
Abstract
Delicate architecture of active material enables improving the performacne of lithium ion batteries. Environmental-friendly Fe2 O3 anode has high theoretical specific capacity (1007 mAh g-1 ) in lithium ion batteries, but suffers from structural collapsing and poor electronic conductivity. Herein, we design an unique hierarchical iron oxide by regulating the initial precursor prussian blue and targeting hollow-shell structures with full consideration of temperature controls. Among them, Fe2 O3 with a sheet-crossing structure at 650°C, affords obvious advantages of improved electronic conductivity, short ionic diffusion length, prevented particle agglomeration, and buffer volume change. Thus, we achieve a superior discharge specific capacity of 611 mAh g-1 at 500 mA g-1 . Regulating hierarchical structure of prussian blue-assisted oxides enables effectively enchancing Li storge performance. LAY DESCRIPTION: Nanoparticle self-assembly, one of bottom-up methods is often used to prepare hollow hierarchical structures, whereas it suffers from low productivity and insufficient stability. Hence, we designed a unique hierarchical iron oxide by top-down method with regulating the initial precursor PB and targeting hollow-shell structures through full consideration of temperature controls. Delicate architecture of active material enables improving the performacne of lithium ion batteries. Environmental-friendly Fe2 O3 anode has high theoretical specific capacity (1007 mAh g-1 ) in lithium ion batteries, but suffers from structural collapsing and poor electronic conductivity. Hence, we prepared Prussian Blue (PB) materials with different sizes and calcined them at different temperatures. We found that no matter what the size of PB, the sheet-crossing morphology appeared at 650°C, and the interlaced morphology was the key to improve the performance of lithium batteries. If the size of PB precursor is too large or too small, it has adverse effects on lithium batteries. Only when the size and calcination temperature of PB precursor reach the optimum state, the best performance can be obtained. The calcination PB-K-3 at 650°C has a unique hierarchical structure of sheet-crossing. An obvious advantages include the prevention of particle agglomeration, short ionic diffusion lengths, and buffering volume changes. As a consequence, 611 mAh g-1 was obtained at the current density of 500 mA g-1 . In addition, we observed the structural changes of electrode plates at different reaction potentials, according to the reaction equation of Fe2 O3 +xLi+ +xe→Lix Fe2 O3 . With the proceeding charge process, the voltage increases from 0.01 to 3 V, the lithium ions gradually comes out of the iron oxide electrode surface. Whereas the discharging process reverses the aforementioned phenomena. Even if the changing volumes, however, the shape of cubic blocks for the PB-K-3 is preserved at different potentials. Taking these advantages into account, our designed MOFs-derived struture was an effective way to prepare hollow hierarchical structure with enhanced Li storage performacne. Such work is expected to facilitate the design of new electrode structure of lithium batteries.
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Affiliation(s)
- Z Zhao
- Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun, China
| | - X Liu
- Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun, China.,College of Biological and Agricultural Engineering, Jilin University, Changchun, China
| | - C Luan
- Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun, China
| | - X Liu
- Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun, China
| | - D Wang
- State Key Laboratory of Chem/Bio-Sensing and Chemometrics, Provincial Hunan Key Laboratory for Graphene Materials and Devices, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - T Qin
- Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun, China
| | - L Sui
- Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun, China
| | - W Zhang
- Key Laboratory of Mobile Materials MOE, School of Materials Science & Engineering, Electron Microscopy Center, International Center of Future Science, Jilin University, Changchun, China.,Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, China
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Qin T, Xue J, Huo D, Zu L. Direct observation of the intermediate radical in the photodissociation of 1,3-cyclohexane dinitrite. Phys Chem Chem Phys 2019; 21:19359-19364. [PMID: 31455949 DOI: 10.1039/c9cp03895g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A two-step photodissociation mechanism was proposed in the literature for dinitrites in the absence of direct evidence of the intermediate species. In this work, photodissociation dynamics of cis and trans 1,3-cyclohexane dinitrites are investigated by laser-induced fluorescence (LIF) spectroscopy and theoretical calculation methods. Observation of the fluorescence spectra of the 3-nitrosooxy cyclohexoxy radical provides direct experimental evidence that the intermediate species exists. The results indicate that photodissociation of dinitrites indeed follows a two-step mechanism, i.e. one of the O-NO bonds of the molecule breaks first upon 355 nm laser photolysis and generates an alkoxy radical (RO) plus NO; the alkoxy radical further dissociates in the secondary dissociation step and produces small fragments such as vinoxy etc.
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Affiliation(s)
- Tai Qin
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China.
| | - Junfei Xue
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China.
| | - Dayujia Huo
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China.
| | - Lily Zu
- College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China.
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Wang J, Chen W, Jiang Z, Lin X, Qin T, Yang X, Liu T, Hu H, Li Z, Xie D, Yao H, Song E. Abstract P4-04-11: A small amount of primary breast cancer shows high tumor mutation burden that may benefit from immune checkpoint inhibitor therapy. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-04-11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Targeted therapy using immune checkpoint inhibitors (ICIs) is a major breakthrough in cancer treatment in the last decade. ICIs like PD1 or PD-L1 antibodies have been shown to be quite effective in cancer like melanoma. However, in most other tumor types including breast cancer, the situation is not as optimistic. Only a small percentage of those patients respond to ICIs therapy. This highlights the importance of identifying biomarkers to predict which patients may benefit from such treatment. Tumor Mutation Burden (TMB) has been shown to be a sensitive marker for ICI treatment. This study is to investigate whether TBM could be used as a biomarker for breast cancer treatment.
Methods: We reviewed next generation sequencing studies of breast cancer. Two such studies with raw data provided were included in our analysis. One study entitled METABRIC performed targeted sequencing of 173 cancer-related genes in around 2500 primary breast cancer tissues. The other study was from TCGA breast cancer project, which performed Whole Exome Sequencing (WES) of around 1000 primary breast cancer samples. Mutation data were downloaded from public data deposit. The number of mutations per sample was calculated. TBM was calculated by divide the coverage in million base pair from that of the total mutation counts.
Results: In METABRIC study, 17272 mutations were identified in 2369 samples, with a median of 7 mutations per sample (95% CI: 6 ˜ 7). The median TMB of METABRIC dataset was 5.8 SNVs/Mb (95% CI: 5 ˜ 5.8). Totally 30 out 2369 (1.3%) samples had a TMB equal or large than 20 SNVs/Mb. In another cohort from TCGA breast cancer study using WES technology, 90172 mutations were identified in 977 samples, with a median of 44 mutations per sample (95% CI: 39 ˜ 50). The median TMB was 1 SNVs/Mb (95% CI: 0.9 ˜ 1.1). Totally 13 out 977 (1.3%) samples had a TMB equal or large than 20 SNVs/Mb.
Conclusions: Breast cancer shows middle to low mutation burden compared to other cancer types. Around 1.3% of breast cancer has quite high TMB of at least 20 SNVs/Mb, which may be qualified for immune checkpoint inhibitors therapy. Our study indicates that TMB may be incorporated as a standard test for late stage breast cancer patients in the clinical practice.
Keywords: Breast cancer, Tumor Mutation Burden, Whole exome sequencing, Targeted sequencing, Immune checkpoint
Citation Format: Wang J, Chen W, Jiang Z, Lin X, Qin T, Yang X, Liu T, Hu H, Li Z, Xie D, Yao H, Song E. A small amount of primary breast cancer shows high tumor mutation burden that may benefit from immune checkpoint inhibitor therapy [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-04-11.
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Affiliation(s)
- J Wang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - W Chen
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Z Jiang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - X Lin
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - T Qin
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - X Yang
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - T Liu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - H Hu
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Z Li
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - D Xie
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - H Yao
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - E Song
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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Liu J, Jiang W, Zhao K, Wang H, Zhou T, Bai W, Wang X, Zhao T, Huang C, Gao S, Qin T, Yu W, Yang B, Li X, Fu D, Tan W, Yang S, Ren H, Hao J. Tumoral EHF predicts the efficacy of anti-PD1 therapy in pancreatic ductal adenocarcinoma. J Exp Med 2019; 216:656-673. [PMID: 30733283 PMCID: PMC6400540 DOI: 10.1084/jem.20180749] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 11/05/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022] Open
Abstract
EHF transcriptionally inhibits the expressions of TGFβ1 and GM-CSF to decrease T reg cell and MDSC accumulation, making it a promising biomarker to evaluate the immune microenvironment in PDAC. EHF overexpression may improve the efficacy of checkpoint immunotherapy in PDAC. Pancreatic ductal adenocarcinoma (PDAC) is a highly immune-suppressive tumor with a low response rate to single checkpoint blockade therapy. ETS homologous factor (EHF) is a tumor suppressor in PDAC. Here, we report a novel function of EHF in pancreatic cancer immune microenvironment editing and efficacy prediction for anti-PD1 therapy. Our findings support that the deficiency of tumoral EHF induced the accumulation of regulatory T (T reg) cells and myeloid-derived suppressor cells (MDSCs) and a decrease in the number of tumor-infiltrating CD8+ T cells. Mechanistically, EHF deficiency induced the conversion and expansion of T reg cells and MDSCs through inhibiting tumor TGFβ1 and GM-CSF secretion. EHF suppressed the transcription of TGFB1 and CSF2 by directly binding to their promoters. Mice bearing EHF overexpression tumors exhibited significantly better response to anti-PD1 therapy than those with control tumors. Our findings delineate the immunosuppressive mechanism of EHF deficiency in PDAC and highlight that EHF overexpression may improve PDAC checkpoint immunotherapy.
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Affiliation(s)
- Jing Liu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Department of Breast Oncoplastic Surgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, Key Laboratory of Breast Cancer Prevention and Therapy, Tianjin Medical University, Ministry of Education, China
| | - Wenna Jiang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China.,Department of Clinical Laboratory, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin's Clinical Research Center for Cancer, China
| | - Kaili Zhao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Hongwei Wang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Tianxing Zhou
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Weiwei Bai
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Xiuchao Wang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Tiansuo Zhao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Chongbiao Huang
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Song Gao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Tai Qin
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Wenwen Yu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Bo Yang
- Department of Pathology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Xin Li
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Danqi Fu
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Wei Tan
- Biosion, Inc., Jiangsu, China
| | - Shengyu Yang
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA
| | - He Ren
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
| | - Jihui Hao
- Department of Pancreatic Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, China
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26
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Huang Y, Sun Y, Qin T, Liu Y. The Structural Integrity of Plasmid-Encoded Pgp3 Is Essential for Induction of Hydrosalpinx by Chlamydia muridarum. Front Cell Infect Microbiol 2019; 9:13. [PMID: 30805313 PMCID: PMC6370636 DOI: 10.3389/fcimb.2019.00013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 01/16/2019] [Indexed: 11/17/2022] Open
Abstract
Pgp3 consists of globular N- and C-terminal domains connected by a triple-helical coiled-coil middle domain. We demonstrated previously that Pgp3 is required for induction of hydrosalpinx by Chlamydia muridarum. We constructed C. muridarum transformants harboring deletion of the Pgp3 N-terminus (pgp3Δn), C-terminus (pgp3Δc), or middle domain (pgp3Δm). C3H/HeJ and CBA/J mice infected with pgp3Δn or pgp3Δm failed to induce hydrosalpinx in oviduct tissue. However, the pgp3Δc transformant induced mild hydrosalpinx in 20% of C3H/HeJ mice (severity score 0.2 ± 0.6) and in 40% of CBA/J mice (severity score 0.8 ± 1.3). The attenuated pathogenicity of the transformants harboring Pgp3 domain deletions was correlated with impaired in vitro growth and significantly reduced infectivity in the mouse lower genital tract. Moreover, the oviduct tissue of C3H/HeJ and CBA/J mice infected with the Pgp3-domain-deficient transformants displayed less inflammatory cell infiltration. Thus, the structural integrity of plasmid-encoded Pgp3 is essential for induction of hydrosalpinx by C. muridarum.
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Affiliation(s)
- Yumeng Huang
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Yina Sun
- Key Laboratory of Hormones and Development (Ministry of Health), Tianjin Key Laboratory of Metabolic Diseases, Tianjin Metabolic Diseases Hospital and Tianjin Institute of Endocrinology, Tianjin Medical University, Tianjin, China
| | - Tai Qin
- Key Laboratory of Cancer Prevention and Therapy, Department of Pancreatic Cancer, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yuanjun Liu
- Department of Dermatovenereology, Tianjin Medical University General Hospital, Tianjin, China
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27
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Huo D, Qin T, Zu L. Energetic switch of the proline effect in collision-induced dissociation of singly and doubly protonated peptide Ala-Ala-Arg-Pro-Ala-Ala. J Mass Spectrom 2019; 54:55-65. [PMID: 30426600 DOI: 10.1002/jms.4311] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 10/30/2018] [Accepted: 11/06/2018] [Indexed: 06/09/2023]
Abstract
Suppression of the selective cleavage at N-terminal of proline is observed in the peptide cleavage by proteolytic enzyme trypsin and in the fragment ion mass spectra of peptides containing Arg-Pro sequence. An insight into the fragmentation mechanism of the influence of arginine residue on the proline effect can help in prediction of mass spectra and in protein structure analysis. In this work, collision-induced dissociation spectra of singly and doubly charged peptide AARPAA were studied by ESI MS/MS and theoretical calculation methods. The proline effect was evaluated by comparing the experimental ratio of fragments originated from cleavage of different amide bonds. The results revealed that the backbone amide bond cleavage was selected by the energy barrier height of the fragmentation pathway although the strong proton affinity of the Arg side chain affected the stereostructure of the peptide and the dissociation mechanism. The thermodynamic stability of the fragment ions played a secondary role in the abundance ratio of fragments generated via different pathways. Fragmentation studies of protonated peptide AACitPAA supported the energy-dependent hypothesis. The results provide an explanation to the long-term arguments between the steric conflict and the proton mobility mechanisms of proline effect.
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Affiliation(s)
- Dayujia Huo
- College of Chemistry, Beijing Normal University, Beijing, China
| | - Tai Qin
- College of Chemistry, Beijing Normal University, Beijing, China
| | - Lily Zu
- College of Chemistry, Beijing Normal University, Beijing, China
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28
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Shi G, Lv C, Yang Z, Qin T, Sun L, Pan P, Wang D. TRIM31 promotes proliferation, invasion and migration of glioma cells through Akt signaling pathway. Neoplasma 2019; 66:727-735. [DOI: 10.4149/neo_2019_190106n21] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 03/20/2019] [Indexed: 11/08/2022]
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29
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Qin T, Barron L, Xia L, Huang H, Villarreal MM, Zwaagstra J, Collins C, Yang J, Zwieb C, Kodali R, Hinck CS, Kim SK, Reddick RL, Shu C, O'Connor-McCourt MD, Hinck AP, Sun LZ. A novel highly potent trivalent TGF-β receptor trap inhibits early-stage tumorigenesis and tumor cell invasion in murine Pten-deficient prostate glands. Oncotarget 2018; 7:86087-86102. [PMID: 27863384 PMCID: PMC5349899 DOI: 10.18632/oncotarget.13343] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 11/07/2016] [Indexed: 11/25/2022] Open
Abstract
The effects of transforming growth factor beta (TGF-β) signaling on prostate tumorigenesis has been shown to be strongly dependent on the stage of development, with TGF-β functioning as a tumor suppressor in early stages of disease and as a promoter in later stages. To study in further detail the paradoxical tumor-suppressive and tumor-promoting roles of the TGF-β pathway, we investigated the effect of systemic treatment with a TGF-β inhibitor on early stages of prostate tumorigenesis. To ensure effective inhibition, we developed and employed a novel trivalent TGF-β receptor trap, RER, comprised of domains derived from the TGF-β type II and type III receptors. This trap was shown to completely block TβRII binding, to antagonize TGF-β1 and TGF-β3 signaling in cultured epithelial cells at low picomolar concentrations, and it showed equal or better anti-TGF-β activities than a pan TGF-β neutralizing antibody and a TGF-β receptor I kinase inhibitor in various prostate cancer cell lines. Systemic administration of RER inhibited prostate tumor cell proliferation as indicated by reduced Ki67 positive cells and invasion potential of tumor cells in high grade prostatic intraepithelial neoplasia (PIN) lesions in the prostate glands of Pten conditional null mice. These results provide evidence that TGF-β acts as a promoter rather than a suppressor in the relatively early stages of this spontaneous prostate tumorigenesis model. Thus, inhibition of TGF-β signaling in early stages of prostate cancer may be a novel therapeutic strategy to inhibit the progression as well as the metastatic potential in patients with prostate cancer.
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Affiliation(s)
- Tai Qin
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX, USA.,Department of Vascular Surgery, Second Xiangya Hospital and Xiangya School of Medicine, Central South University, Hunan, China
| | - Lindsey Barron
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX, USA
| | - Lu Xia
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX, USA.,Department of Gynecology and Obstetrics, Xiangya Hospital and Xiangya School of Medicine, Central South University, Hunan, China
| | - Haojie Huang
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Maria M Villarreal
- Department of Biochemistry, University of Texas Health Science Center, San Antonio, TX, USA
| | - John Zwaagstra
- National Research Council Human Health Therapeutics Portfolio, Montréal, Quebec, Canada, Maureen O'Connor-McCourt is currently affiliated with Formation Biologics, Montréal, Quebec, Canada
| | - Cathy Collins
- National Research Council Human Health Therapeutics Portfolio, Montréal, Quebec, Canada, Maureen O'Connor-McCourt is currently affiliated with Formation Biologics, Montréal, Quebec, Canada
| | - Junhua Yang
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX, USA
| | - Christian Zwieb
- Department of Biochemistry, University of Texas Health Science Center, San Antonio, TX, USA
| | - Ravindra Kodali
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Cynthia S Hinck
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Sun Kyung Kim
- Department of Biochemistry, University of Texas Health Science Center, San Antonio, TX, USA
| | - Robert L Reddick
- Department of Pathology, University of Texas Health Science Center, San Antonio, TX, USA
| | - Chang Shu
- Department of Vascular Surgery, Second Xiangya Hospital and Xiangya School of Medicine, Central South University, Hunan, China
| | - Maureen D O'Connor-McCourt
- National Research Council Human Health Therapeutics Portfolio, Montréal, Quebec, Canada, Maureen O'Connor-McCourt is currently affiliated with Formation Biologics, Montréal, Quebec, Canada
| | - Andrew P Hinck
- Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA USA
| | - Lu-Zhe Sun
- Department of Cell Systems and Anatomy, University of Texas Health Science Center, San Antonio, TX, USA.,Cancer Therapy and Research Center, University of Texas Health Science Center at San Antonio, Texas, USA
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30
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Mellgren T, Qin T, Öhman-Mägi C, Zhang Y, Wu B, Xia W, Engqvist H. Calcium Phosphate Microspheres as a Delivery Vehicle for Tooth-Bleaching Agents. J Dent Res 2017; 97:283-288. [DOI: 10.1177/0022034517741295] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- T. Mellgren
- Materials in Medicine Group, Division of Applied Materials Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - T. Qin
- Materials in Medicine Group, Division of Applied Materials Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - C. Öhman-Mägi
- Materials in Medicine Group, Division of Applied Materials Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - Y. Zhang
- Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - B. Wu
- Division of Advanced Prosthodontics, School of Dentistry, University of California, Los Angeles, CA, USA
| | - W. Xia
- Materials in Medicine Group, Division of Applied Materials Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
| | - H. Engqvist
- Materials in Medicine Group, Division of Applied Materials Science, Department of Engineering Sciences, Uppsala University, Uppsala, Sweden
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31
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Wang S, Lu Q, Qin T, Xu F, Zeng Y, Xia W, Zheng Q, Lee K, Zhang K, Qin G, Kong M, Hong R, Shi Y, Yuan Z. Clinical implication of PLR and PD-L1 in breast cancer patients. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx363.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Qin T, Barron L, Xia L, Huang H, Villarreal MM, Zwaagstra J, Collins C, Yang J, Zwieb C, Kodali R, Hinck CS, Kim SK, Reddick RL, Shu C, O'Connor-McCourt MD, Hinck AP, Sun LZ. Correction: A novel highly potent trivalent TGF-β receptor trap inhibits early-stage tumorigenesis and tumor cell invasion in murine Pten-deficient prostate glands. Oncotarget 2017; 8:57905. [PMID: 28915722 PMCID: PMC5593694 DOI: 10.18632/oncotarget.20370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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Wang X, Dong J, Jia L, Zhao T, Lang M, Li Z, Lan C, Li X, Hao J, Wang H, Qin T, Huang C, Yang S, Yu M, Ren H. HIF-2-dependent expression of stem cell factor promotes metastasis in hepatocellular carcinoma. Cancer Lett 2017; 393:113-124. [DOI: 10.1016/j.canlet.2017.01.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 01/21/2017] [Accepted: 01/23/2017] [Indexed: 12/12/2022]
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Naghavi SS, Fabrizio M, Qin T, Tosatti E. Nanoscale orbital excitations and the infrared spectrum of a molecular Mott insulator: A15-Cs 3C 60. Nanoscale 2016; 8:17483-17488. [PMID: 27714176 DOI: 10.1039/c6nr05725j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The quantum physics of ions and electrons behind low-energy spectra of strongly correlated molecular conductors, superconductors and Mott insulators is poorly known, yet fascinating especially in orbitally degenerate cases. The fulleride insulator Cs3C60 (A15), one such system, exhibits infrared (IR) spectra with low temperature peak features and splittings suggestive of static Jahn-Teller distortions with a breakdown of orbital symmetry in the molecular site. That is puzzling, since there is no detectable static distortion, and because the features and splittings disappear upon modest heating, which they should not. Taking advantage of the Mott-induced collapse of electronic wavefunctions from lattice-extended to nanoscale localized inside a caged molecular site, we show that the unbroken spin and orbital symmetry of the ion multiplets explains the IR spectrum without adjustable parameters. This demonstrates the importance of a fully quantum treatment of nuclear positions and orbital momenta in the Mott insulator sites, dynamically but not statically distorted. The observed demise of these features with temperature is explained by the thermal population of a multiplet term whose nuclear positions are essentially undistorted, but whose energy is very low-lying. That term is in fact a scaled-down orbital excitation analogous to that of other Mott insulators, with the same spin 1/2 as the ground state, but with a larger orbital momentum of two instead of one.
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Affiliation(s)
- S S Naghavi
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, USA
| | - M Fabrizio
- International School for Advanced Studies (SISSA), and CNR-IOM Democritos National Simulation Center, Via Bonomea 265, I-34136 Trieste, Italy.
| | - T Qin
- International School for Advanced Studies (SISSA), and CNR-IOM Democritos National Simulation Center, Via Bonomea 265, I-34136 Trieste, Italy. and Institut für Theoretische Physik, Goethe-Universität, 60438 Frankfurt am Main, Germany
| | - E Tosatti
- International School for Advanced Studies (SISSA), and CNR-IOM Democritos National Simulation Center, Via Bonomea 265, I-34136 Trieste, Italy. and International Centre for Theoretical Physics (ICTP), Strada Costiera 11, I-34151 Trieste, Italy
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Abstract
Objectives The primary purpose of this meta-analysis was to determine whether statin usage could reduce the risk of glucocorticoid-related osteonecrosis in animal models. Methods A systematic literature search up to May 2015 was carried out using the PubMed, Ovid, EBM reviews, ISI Web of Science, EBSCO, CBM, CNKI databases with the term and boolean operators: statins and osteonecrosis in all fields. Risk ratio (RR), as the risk estimate of specific outcome, was calculated along with 95% confidence intervals (CI). The methodological quality of individual studies was assessed using a quantitative tool based on the updated Stroke Therapy Academic Industry Roundtable (STAIR) recommendations. Results A total of 11 eligible studies were included according to predetermined criteria. The pooled data demonstrated that animals with statin usage, either alone or combined with other treatments, were at a decreased risk of developing glucocorticoid-related osteonecrosis (RR = 2.06, 95% confidence interval (CI) 1.71 to 2.50). Moreover, subgroup analysis revealed that compared with statins alone, statins combined with other treatments significantly decreased the risk of osteonecrosis (RR = 1.23, 95% CI 1.02 to 1.47). However, we could find no significant risk difference for different gender, or for different time points. Conclusions The present study suggests that statins combined with other treatments are efficient in preventing the development of glucocorticoid-related osteonecrosis in animals. These results might shed light on clinical practice when glucocorticoids are prescribed, and could be further investigated in high-quality clinical trials. Cite this article: Z. Yang, H. Liu, D. Li, X. Xie, T. Qin, J. Ma, P. Kang. The efficacy of statins in preventing glucocorticoid-related osteonecrosis in animal models: A meta-analysis. Bone Joint Res 2016;5:393–402. DOI: 10.1302/2046-3758.59.2000500.
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Affiliation(s)
- Z Yang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - H Liu
- Department of Rehabilitation Medicine, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, China
| | - D Li
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - X Xie
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - T Qin
- Chinese Evidence-Based Medicine Centre/Cochrane Center, West China Hospital, Chengdu, China
| | - J Ma
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
| | - P Kang
- Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, China
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Qin T, Bi R, Fan W, Kang H, Ma P, Gu B. Novel mutations in quinolone resistance-determining regions of gyrA, gyrB, parC and parE in Shigella flexneri clinical isolates from eastern Chinese populations between 2001 and 2011. Eur J Clin Microbiol Infect Dis 2016; 35:2037-2045. [PMID: 27620866 DOI: 10.1007/s10096-016-2761-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 08/16/2016] [Indexed: 11/30/2022]
Abstract
The aim of this study was to evaluate the prevalence of fluoroquinolone resistance and mechanisms of selected fluoroquinolone resistance in Shigella flexneri isolates. A total of 624 S. flexneri strains isolated between 2001 and 2011 in Jiangsu Province of China were analysed for their fluoroquinolone susceptibility. The quinolone resistance-determining region of gyrA, gyrB, parC and parE were amplified and sequenced. In general, 90.5 % of S. flexneri exhibited resistance to nalidixic acid. The mean norfloxacin resistance rate was 22.4 % during the 11 years from 2001 to 2011 (6.4 % from 2001 to 2005 and 36.8 % from 2006 to 2011). Sequencing of gyrA, gyrB, parC and parE genes of all S. flexneri isolates showed that the mutation rate was as high as 93.9 %. In addition, 91.8 % and 92.3 % of S. flexneri harboured mutations in gyrA and parC, respectively. About 35.2 % of S. flexneri isolates susceptible to nalidixic acid contained mutations. Meanwhile, mutations were detected in 91.2 % of norfloxacin-susceptible strains, and almost all S. flexneri isolates resistant to fluoroquinolone contained mutations. To the best of our knowledge, this is the first study reporting the occurrence of point mutations Asn57Lys and His80Pro in gyrA and Ala85Thr, Asp111His and Ser129Pro in parC. Emerging fluoroquinolone resistance with a significantly high mutation rate of the gyrA and parC genes in S. flexneri in Jiangsu Province deserves attention, and monitoring antibiotic susceptibility is important for the effective management of S. flexneri infections.
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Affiliation(s)
- T Qin
- Medical Technology Institute of Xuzhou Medical University, Xuzhou, 221004, China
| | - R Bi
- Medical Technology Institute of Xuzhou Medical University, Xuzhou, 221004, China
| | - W Fan
- Medical Technology Institute of Xuzhou Medical University, Xuzhou, 221004, China
| | - H Kang
- Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China
| | - P Ma
- Medical Technology Institute of Xuzhou Medical University, Xuzhou, 221004, China. .,Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China.
| | - B Gu
- Medical Technology Institute of Xuzhou Medical University, Xuzhou, 221004, China. .,Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, China.
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Li S, Zhou Y, Williams G, Jaakkola J, Ou C, Chen S, Yao T, Qin T, Wu S, Guo Y. Seasonality and temperature effects on fasting plasma glucose: A population-based longitudinal study in China. Diabetes & Metabolism 2016; 42:267-75. [DOI: 10.1016/j.diabet.2016.01.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 01/05/2016] [Accepted: 01/08/2016] [Indexed: 01/05/2023]
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Xia L, Qin T, Sun L. Abstract 5173: Role of Gli2 in mediating the progression of prostate cancer to CRPC. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-5173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Prostate cancer is a leading cause of cancer-related death in the US men, largely due to the development of castration resistant prostate cancer (CRPC) in the patients treated with androgen deprivation therapy. There is increasing evidence indicating that Hedgehog pathway is involved in the malignancy of prostate cancer, which includes the finding of two prostate tumors with loss-of-function mutations in the SuFu gene, correlation of tumor grade with high expression of Sonic hedgehog, Gli2 and/or hedgehog target genes including Ptch1 and HIP, and increased Gli2 expression in therapy-resistant tumor cells from patients. In addition, treatment of mice with hedgehog inhibitors significantly attenuated the growth of prostate tumor xenografts. Some recent studies also implicated a crosstalk between Hedgehog/Gli signaling and androgen signaling pathways in prostate cancer. However, the role of Gli2 in CRPC progression has not been investigated. Methods: A human Gli2 specific small hairpin RNA (shRNA) expression vector was constructed using Tet-PLKO-puro lentivector, which was delivered into the androgen-dependent human prostate cancer LNCaP cells. RT-PCR, Western Blot and Luciferase Reporter Assay were performed to confirm doxycycline-inducible Gli2 knockdown. The effect of Gli2 knockdown on anchorage-dependent or -independent growth was assessed with MTT and Soft Agar Assays respectively. Cells were cultured in androgen depleted medium or treated with the anti-androgen, Casodex, to mimic androgen deprivation condition. Mouse xenograft models were used to assess the role of Gli2 in the development of CRPC in vivo. Results: Androgen deprivation promoted the expression of Hedgehog signaling components including Gli2 in the LNCaP cells. Gli2 knockdown inhibited anchorage-dependent and -independent growth of LNCaP cells. Casodex complemented the inhibition of Gli2 knockdown on the growth of LNCaP cells. Gli2 knockdown prevented the outgrowth of androgen-independent cells from LNCaP cells cultured in androgen depleted medium. Induced-knockdown of Gli2 by doxycycline inhibited the growth of castration-resistant tumors in vivo in mice. Conclusions: Our study demonstrated the important role of Gli2 in the development of CRPC. Therefore, it may have the potential to serve as a novel therapeutic target for the prevention of CRPC.
Citation Format: Lu Xia, Tai Qin, Luzhe Sun. Role of Gli2 in mediating the progression of prostate cancer to CRPC. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 5173.
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Wang S, Zheng Q, Nie M, Xu F, Xia W, Yuan Z, Peng R, An X, Qin T, Qin G. Abstract P3-07-21: Non-alcoholic fatty liver disease induced by selective estrogen receptor modulators is a protective factor for breast cancer survival. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p3-07-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: Non-alcoholic fatty liver disease (NAFLD) induced by selective estrogen receptor modulators (SERMs) treatment may be related to treatment efficacy for the antagonism of circulating estrogens. We conducted a retrospective study to investigate the relationship between survival outcomes and NAFLD in breast cancer patients treated with tamoxifen or toremifene.
Patients and methods: 785 eligible patients received tamoxifen or toremifene in Sun Yat-sen university cancer center from January 2005 to December 2009 were included in our study. All patients have at less one abdominal ultrasonography measurement at baseline and every year's follow-up. Patients who diagnosed NAFLD by ultrasonography during three-year's follow-up were classified into NAFLD cohort, others were classified into no-NAFLD cohort. Univariate and multivariate Cox regression was utilized to analyse the relationship between NAFLD and disease-free survival (DFS) and overall survival (OS).
Results:158 patients had reported NAFLD in the first 3 years' follow-up. Patients who developed NAFLD had better DFS and OS than those not developing NAFLD. The 5-years DFS was 91.56% and 85.01% at NAFLD and no-NAFLD cohort (univariate hazard ratio [HR]: 0.59 [95%CI 0.37-0.96], P=0.034), respectively. The 5-years OS was 96.64% and 93.31% at NAFLD and no-NAFLD cohort (univariate HR: 0.39 [95%CI 0.16-0.99], P=0.047), respectively. Multivariate analysis revealed that NAFLD is an independent prognostic factor on DFS in breast cancer patients with SERMs treated. Women treated with SERMs experienced NAFLD in the first three-year's follow-up had a reduced risk of DFS of 42% (multivariate HR: 0.58; [95%CI 0.36-0.95], P=0.032) compared with patients without NAFLD.
Conclusion: NAFLD induced by SERMs seems to be associated with better survival outcomes and may therefore be helpful in predicting treatment responses in breast cancer patients treated with SERMs.
Citation Format: Wang S, Zheng Q, Nie M, Xu F, Xia W, Yuan Z, Peng R, An X, Qin T, Qin G. Non-alcoholic fatty liver disease induced by selective estrogen receptor modulators is a protective factor for breast cancer survival. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P3-07-21.
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Affiliation(s)
- S Wang
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Q Zheng
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - M Nie
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - F Xu
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - W Xia
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - Z Yuan
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - R Peng
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - X An
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - T Qin
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
| | - G Qin
- Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China
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Yin Y, Qin T, Wang X, Lin J, Yu Q, Yang Q. CpG DNA assists the whole inactivated H9N2 influenza virus in crossing the intestinal epithelial barriers via transepithelial uptake of dendritic cell dendrites. Mucosal Immunol 2015; 8:799-814. [PMID: 25492476 DOI: 10.1038/mi.2014.110] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2014] [Accepted: 10/09/2014] [Indexed: 02/04/2023]
Abstract
Intestinal mucosa remains a pivotal barrier for the oral vaccine absorption of H9N2 whole inactivated influenza virus (WIV). However, CpG DNA, as an adjuvant, can effectively improve relevant mucosal and systemic immunity. The downstream mechanism is well confirmed, yet the evidence of CpG DNA assisting H9N2 WIV in transepithelial delivery is lacking. Here, we reported both in vitro and in vivo that CpG DNA combined with H9N2 WIV was capable of recruiting additional dendritic cells (DCs) to the intestinal epithelial cells (ECs) to form transepithelial dendrites (TEDs) for luminal viral uptake. Both CD103(+) and CD103(-) DCs participated in this process. The engagement of the chemokine CCL20 from the apical ECs and the DCs drove DC recruitment and TED formation. Virus-loaded CD103(+) but not CD103(-) DCs also quickly migrated into mesenteric lymph nodes within 2 h. Moreover, the mechanism of CpG DNA was independent of epithelial transcytosis and disruption of the epithelial barriers. Finally, the subsequent phenotypic and functional maturation of DCs was also enhanced. Our findings indicated that CpG DNA improved the delivery of H9N2 WIV via TEDs of intestinal DCs, and this may be an important mechanism for downstream effective antigen-specific immune responses.
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Affiliation(s)
- Y Yin
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
| | - T Qin
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
| | - X Wang
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
| | - J Lin
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
| | - Q Yu
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
| | - Q Yang
- Key Lab of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China
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Gui J, Pan CM, Jin Y, Qin T, Lo JC, Lee BJ, Spergel SH, Mertzman ME, Pitts WJ, La Cruz TE, Schmidt MA, Darvatkar N, Natarajan SR, Baran PS. Practical olefin hydroamination with nitroarenes. Science 2015; 348:886-91. [DOI: 10.1126/science.aab0245] [Citation(s) in RCA: 313] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 04/07/2015] [Indexed: 12/24/2022]
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Wang J, Qin T, Xu Z, Zhang Y, Gale R, Fang L, Zhang H, Pan L, Hu N, Qu S, Li B, Xiao Z. 255 RESPONSE TO THALIDOMIDE AND CYCLOSPORINE IN PATIENTS WITH LOWER-RISK MYELODYSPLASTIC SYNDROME WITHOUT ISOLATED DEL(5Q). Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30256-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Li Y, Qin T, Zhang Y, Xu Z, Fang L, Zhang H, Pan L, Hu N, Qu S, Li B, Xiao Z. 254 PROGNOSTIC EVALUATION OF COMORBIDITIES IN PATIENTS WITH MYELODYSPLASTIC SYNDROME. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30255-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Yang Z, Liu H, Xie X, Tan Z, Qin T, Kang P. The influence of diabetes mellitus on the post-operative outcome of elective primary total knee replacement: a systematic review and meta-analysis. Bone Joint J 2015; 96-B:1637-43. [PMID: 25452366 DOI: 10.1302/0301-620x.96b12.34378] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Total knee replacement (TKR) is an effective method of treating end-stage arthritis of the knee. It is not, however, a procedure without risk due to a number of factors, one of which is diabetes mellitus. The purpose of this study was to estimate the general prevalence of diabetes in patients about to undergo primary TKR and to determine whether diabetes mellitus adversely affects the outcome. We conducted a systematic review and meta-analysis according to the Meta-analysis Of Observational Studies in Epidemiology (MOOSE) guidelines. The Odds Ratio (OR) and mean difference (MD) were used to represent the estimate of risk of a specific outcome. Our results showed the prevalence of diabetes mellitus among patients undergoing TKR was 12.2%. Patients with diabetes mellitus had an increased risk of deep infection (OR = 1.61, 95% confidence interval (CI), 1.38 to 1.88), deep vein thrombosis (in Asia, OR = 2.57, 95% CI, 1.58 to 4.20), periprosthetic fracture (OR = 1.89, 95% CI, 1.04 to 3.45), aseptic loosening (OR = 9.36, 95% CI, 4.63 to 18.90), and a poorer Knee Society function subscore (MD = -5.86, 95% CI, -10.27 to -1.46). Surgeons should advise patients specifically about these increased risks when obtaining informed consent and be meticulous about their peri-operative care.
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Affiliation(s)
- Z Yang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - H Liu
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - X Xie
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
| | - Z Tan
- Department of Orthopedics , West China Hospital, Sichuan University, Chengdu, China
| | - T Qin
- Chinese Evidence-Based Medicine Centre, West China Hospital, Sichuan University, Chengdu, China
| | - P Kang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, China
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Wu CS, Wang XW, Qin T, Chen Z, Sun S, Li JM, Liu HL, Feng H, Han JQ. Primary intraosseous ganglioneuromatous paraganglioma of the sacrum with immunopositivity for cytokeratin. Eur Rev Med Pharmacol Sci 2015; 19:931-935. [PMID: 25855915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND Paragangliomas are derived from neurosecretory cells believed to be of neural crest origin. A spinal location of paraganglioma is rare and usually presents as an intradural mass. PATIENT AND METHODS A primary intraosseous paraganglioma of sacrum is extremely unusual, and only 6 cases were reported. In this study, we report a rare case of a 44-year-old man with the complaint of low back pain and lower extremity weakness. Imaging workup, including computerized tomography (CT), and magnetic resonance imaging (MRI) presented an intraosseous sacral lesion with invasion of sacrum in the S1-S3 vertebrae, and extension to L4-L5 spinal canal. The patient underwent subtotal tumor resection, followed by radiation therapy. RESULTS The morphological and immunohistochemical studies revealed a composite tumor of paraganglioma and ganglioneuroma components, with immunopositivity for cytokeratin. CONCLUSIONS To the best of our knowledge, this is the first report in the literature demonstrating an intraosseous sacral paraganglioma with these 2 pathological features.
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Affiliation(s)
- C-S Wu
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University, Jinan, Shandong, P.R. China.
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Chen JR, Wang J, Li C, Qin T, Cen X, Li J. How Well the Pragmatic Randomized Controls in Joint Replacement Field: Results from Precis, Consort and Iom Tools' Assessment. Value Health 2014; 17:A732. [PMID: 27202617 DOI: 10.1016/j.jval.2014.08.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- J R Chen
- Sichuan University, Chengdu, China
| | - J Wang
- Sichuan University, Chengdu, China
| | - C Li
- Sichuan University, Chengdu, China
| | - T Qin
- Sichuan University, Chengdu, China
| | - X Cen
- Sichuan University, Chengdu, China
| | - J Li
- Sichuan University, Chengdu, China
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Qin T, Zhu H, Wang D, Hao H, Du W. Genomic organization and expression of immunoglobulin genes in the Chinese hamster (Cricetulus griseus). Scand J Immunol 2014; 81:11-22. [PMID: 25271137 DOI: 10.1111/sji.12243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 09/12/2014] [Indexed: 11/26/2022]
Abstract
In science, the hamsters are widely used as a model for studying the human diseases because they display many features like humans. The utility of the Chinese hamster as a biology model can be further enhanced by further characterization of the genes encoding components of the immune system. Here, we report the genomic organization and expression of the Chinese hamster immunoglobulin heavy and light chain genes. The Chinese hamster IgH locus contains 268 VH segments (132 potentially functional genes, 12 ORFs and 124 pseudogenes), 4 DH segments, 6 JH segments, four constant region genes (μ, γ, ε and α) and one reverse δ remnant fragment. The Igκ locus contains only a single Cκ gene, 4 Jκ segments and 48 Vκ segments (15 potentially functional genes and 33 pseudogenes), whereas the Igλ locus contains 4 Cλ genes, but only Cλ 3 and Cλ 4 each preceded by a Jλ gene segment. A total of 49 Vλ segments (39 potentially functional genes, 3 ORFs and 7 pseudogenes) were identified. Analysis of junctions of the recombined V(D)J transcripts reveals complex diversity in both expressed H and κ sequences, but the microhomology-directed VJ recombination obviously results in very limited diversity in the Chinese hamster λ gene despite more potential germline-encoded combinatorial diversity. This is the first study to make a comprehensive analysis of the Ig genes in the Chinese hamster, which provides insights into the Ig genes in placental mammals.
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Affiliation(s)
- T Qin
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China
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Li Z, Zhou T, Huang Y, Zhao H, Chen L, Zhao Y, Fang W, Yang P, Hou X, Xue C, Ma X, Hu Z, Qin T, Liang W, Wu X, Hong S. Open, Single Arm Trial of Erlotinib As the 2Nd/3Rd Line Treatment in Advanced or Recurrent Non-Small Cell Lung Cancer with Epidermal Growth Factor Receptor Wild Type and C-Met Negative Expression (Ml28941, C-Tong 1306). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu348.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Zhao XM, Ren JJ, Zhao SJ, Cui LS, Hao HS, Wang HY, Du WH, Qin T, Liu Y, Wang D, Zhu HB. Apoptosis-like events and in vitro fertilization capacity of sex-sorted bovine sperm. Reprod Domest Anim 2014; 49:543-549. [PMID: 24894655 DOI: 10.1111/rda.12305] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 02/14/2014] [Indexed: 12/24/2022]
Abstract
This study utilized three staining assays (Annexin V, mitochondrial membrane potential (JC-1) and TUNEL) for flow cytometric analysis of apoptosis in sex-sorted sperm from four different bulls (A, B, C and D). Correlations between sperm quality and IVF efficiency were then assessed to determine which assay provided the best prediction of IVF efficiency. The results of the Annexin V assays, as well as measures of viable sperm, early apoptosis, necrotic sperm and mitochondrial membrane potential (∆ψm) showed that the sex-sorted sperm collected from bull A significantly differed from those of the other three bulls (p < 0.05). In addition, the levels of DNA fragmentation in sex-sorted sperm from bull A were significantly lower than those from bulls B and C (p < 0.05). The percentage of cells reaching the cleavage and blastocyst stages in sex-sorted sperm from bull A were significantly greater than those from the other bulls (p < 0.05). A significant positive correlation was observed between viable sperm and the percentage of cells at the cleavage or blastocyst stages (p < 0.05). In contrast, a negative correlation was found between early apoptotic sperm and the percentage of cells at the cleavage or blastocyst stages (p < 0.05). In conclusion, these results indicated that the Annexin V assay was the most reliable technique for the prediction of the IVF success of sex-sorted bovine sperm.
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Affiliation(s)
- X-M Zhao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - J-J Ren
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - S-J Zhao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - L-S Cui
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - H-S Hao
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - H-Y Wang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - W-H Du
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - T Qin
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Y Liu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - D Wang
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - H-B Zhu
- Embryo Biotechnology and Reproduction Laboratory, Institute of Animal Science (IAS), Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
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50
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Qin T, Liu CJ, Zhang HW, Pan YF, Tang Q, Liu JK, Wang YZ, Hu MX, Xue F. Effect of the IkBα mutant gene delivery to mesenchymal stem cells on rat chronic pancreatitis. Genet Mol Res 2014; 13:371-85. [PMID: 24535864 DOI: 10.4238/2014.january.21.5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This study aimed to investigate the effect of inhibitors of the NF-kΒ alpha mutant gene (IkBaM) delivery to mensenchymal stem cells (MSCs) on rat chronic pancreatitis (CP). A total of 120 Sprague-Dawley rats were randomly divided into 6 groups of 20: Group A was injected with sterile saline solution, Group B was injected with allogenic MSCs, Group C1 was injected with allogenic IkBαM-MSCs cultured in vitro 4 h before CP modeling, Group C2 was injected with allogenic IkBαM-MSCs cultured in vitro during CP modeling, Group C3 was cultured with allogenic IkBαM-MSCs cultured in vitro 4 h after CP modeling, and Group D was injected with rAAV2-MSCs. Cytokine levels of ICAM-1, CTGF, IL-1, IL-6, IL-8, TNF-α, TIMP-1, TIMP-2, IL-10, FN, MMP-1, MMP-2, MMP-3, and MMP-9 were examined. The results indicated that allogenic IκBαM-MSCs could reduce pro-inflammatory cytokine levels and increase anti-inflammatory cytokine levels in CP. The allogenic IkBαM-MSCs reduced the activation and promoted the apoptosis of pancreatic stellate cells in the rat model of CP. IkBαM-MSCs influenced the proliferation and apoptosis of pancreatic stellate cells by regulating the activation of the PPAR, MAPK, mTOR, TGF-β, NOD-like receptor, Notch, WNT, TGF-β1-SMAD-2/3, and P53 signal transduction pathways.
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Affiliation(s)
- T Qin
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - C J Liu
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - H W Zhang
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - Y F Pan
- Department of Infection Disease, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China
| | - Q Tang
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - J K Liu
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - Y Z Wang
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - M X Hu
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
| | - F Xue
- Department of Hepatobiliary Pancreatic Surgery, Henan People's Hospital, Zhengzhou, Henan Province, China
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