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Yu F, Liu J, Wei X. Circ-ABCA1 promotes oxidized low-density lipoprotein-induced inflammation and phenotypic switch in vascular smooth muscle cells. Clinics (Sao Paulo) 2024; 79:100343. [PMID: 38554490 PMCID: PMC10998038 DOI: 10.1016/j.clinsp.2024.100343] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 03/03/2024] [Indexed: 04/01/2024] Open
Abstract
OBJECTIVE Atherosclerosis (AS) is a chronic inflammatory disease of the arterial wall, in which Human Vascular Smooth Muscle Cells (HVSMCs) are involved. Nevertheless, the functions and mechanisms of circRNAs in oxidized Low-Density Lipoprotein (ox-LDL)-induced vascular smooth muscle cells remain unclear. METHODS Circ-ABCA1 expression was measured in the models of AS. Then, in the vitro model, oligonucleotide transfection was performed, followed by an analysis of VSMC proliferation, migration, inflammation, and phenotypic switch. Also, in the in vivo model, mice were injected with shRNA lentivirus, followed by histological examination of aortic tissues. Finally, the interaction of circ-ABCA1, miR-885-5p, and ROCK2 was identified. RESULTS Circ-ABCA1, was confirmed to be overexpressed in ox-LDL-induced VSMCs and mouse models of AS. Functionally, silencing circ-ABCA1 via oligonucleotide transfection suppressed VSMC proliferation, migration, inflammation, and phenotypic switch in vitro and prevented AS development in mice in vivo. Mechanistically, circ-ABCA1 absorbed miR-885-5p, which targeted ROCK2. CONCLUSION Taken together, the data from this study suggest that circ-ABCA1 mediates cellular inflammation and phenotype switching through the miR-885-5p/ROCK2 axis in ox-LDL-induced VSMCs, and the circ-ABCA1/miR-885-5p/ROCK2 axis is a new potential biomarker for the treatment of AS.
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Affiliation(s)
- Fang Yu
- Department of Cardiac Catheterization Room, Yantaishan Hospital, Yantai City, Shandong Province, China
| | - JiWei Liu
- Department of Emergency, Ezhou Central Hospital, Ezhou City, Hubei Province, China
| | - Xiao Wei
- Department of 120 Emergency Center, The First People's Hospital of Jiangxia District, Wuhan City, Hubei Province, China.
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2
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Zhao XY, Liu YY, Li LP, Liu JW. [Circ_0026134 regulates the miR-1270/GRB2 pathway to affect the radiosensitivity of hepatoma cells]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:40-48. [PMID: 38320790 DOI: 10.3760/cma.j.cn501113-20231129-00250] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Objective: To investigate whether circular RNA 0026134 (circ_0026134) affects the radiosensitivity of hepatoma cells by regulating the miR-1270/growth factor receptor-bound protein 2 (GRB2) pathway. Methods: Real-time quantitative PCR (RT-qPCR) was used to detect the expression levels of circ_0026134, miR-1270, and GRB2 in liver cancer tissues and cells. Bioinformatics analysis, a dual-luciferase gene reporter assay, RT-qPCR, and western blot were used to analyze the targeting relationships between circ_0026134 and miR-1270 and miR-1270 and GRB2. The effects of circ_0026134, miR-1270, and GRB2 expression combined with 6 Gy on the proliferation, invasion, migration, and apoptosis of Huh7 and SK-HEP-1 cells were detected by a cell counting kit, a transwell assay, a scratch assay, and flow cytometry. The tumorigenesis experiment was used to detect the effect of silencing circ_0026134 in nude mice. Measurement data are expressed as the mean ± standard deviation. The independent sample t-test was used for comparison between two groups, and the one-way analysis of variance and SNK-q test were used for comparison between multiple groups. P < 0.05 was considered statistically significant. Results: The expression levels of circ_0026134 and GRB2, Huh7, and SK-HEP-1 cells in liver cancer tissues were significantly increased, while the expression levels of miR-1270 were significantly decreased (P < 0.05). The expression of circ_0026134 in Huh7 and SK-HEP-1 decreased significantly after radiotherapy (P < 0.05). circ_0026134 binds directly to miR-1270 and negatively regulates miR-1270 expression (P < 0.05). miR-1270 binds directly to GRB2 and negatively regulates GRB2 expression (P < 0.05). 6 Gy radiation significantly inhibited the proliferation, migration, and invasion of Huh7 and SK-HEP-1 cells and induced apoptosis (P < 0.05). Silencing circ_0026134 or overexpression of miR-1270 significantly enhanced the anti-proliferation, anti-migration, invasion, and pro-apoptosis effects of 6 Gy treatment on hepatoma cells (P < 0.05). Inhibition of miR-1270 significantly weakened the effects of silencing circ_0026134 combined with 6 Gy radiation on proliferation, migration, invasion, and apoptosis of hepatoma cells (P < 0.05). Overexpression of GRB2 significantly weakened the effects of miR-1270 overexpression combined with 6 Gy radiation on proliferation, migration, invasion, and apoptosis of hepatoma cells (P < 0.05). circ_0026134 knockdown significantly delayed tumor growth in vivo (P < 0.05). Conclusion: Silencing circ_0026134 strengthens radiation treatment's anti-proliferation, anti-migration, invasion, and pro-apoptotic effects in hepatoma cells by negatively regulating the miR-1270/GRB2 pathway, thereby enhancing radiosensitivity.
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Affiliation(s)
- X Y Zhao
- Department of Comprehensive Intervention, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University; Zhengzhou 450000, China
| | - Y Y Liu
- Department of Comprehensive Intervention, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University; Zhengzhou 450000, China
| | - L P Li
- Department of Comprehensive Intervention, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University; Zhengzhou 450000, China
| | - J W Liu
- Department of Comprehensive Intervention, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University; Zhengzhou 450000, China
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Wang MD, Liang ZY, Chen ZZ, Liu ZJ, Liu JW, Li SY. [Research progress on distribution characteristics and health risk assessment of bioaerosols in medical institutions]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:1254-1260. [PMID: 38044055 DOI: 10.3760/cma.j.cn112147-20230823-00102] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Bioaerosols in healthcare facilities are closely related to the health of medical staff and patients. Inhalation of microbial aerosol particles can lead to both infectious and non-infectious diseases. However, a systematic summary of bioaerosol types, sources, impact factors and health risk analysis is lacking.This article condutcted a literature review to understand the distribution characteristics, sources, influencing factors and health risks of bioaerosols in healthcare facilities, both domestically and internationally. The goal is to increase awareness of the distribution characteristics of bioaerosols in healthcare facilities and health risk of bioaerosols in medical institutions. This article also provides a reference for prevention and control of bioaerosols.
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Affiliation(s)
- M D Wang
- National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Z Y Liang
- National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Z Z Chen
- National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Z J Liu
- Department of Power Engineering, North China Electric Power University, Baoding 071003, China
| | - J W Liu
- National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - S Y Li
- National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Respiratory and Critical Care Medicine, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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4
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Liu JW, Zhang XN, Lin G, Li J. [The impact of the highest mediastinal lymph node metastasis on postoperative recurrence and survival in non-small cell lung cancer patients]. Zhonghua Wai Ke Za Zhi 2023; 61:1086-1092. [PMID: 37932145 DOI: 10.3760/cma.j.cn112139-20230217-00065] [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: 11/08/2023]
Abstract
Objective: To examine whether the highest mediastinal lymph node (HMLN) metastasis had an influence on postoperative recurrence and survival among non-small cell lung cancer (NSCLC) patients with pN2 lymph node metastasis. Methods: A total of 261 patients who underwent radical resection of lung cancer and systematic lymph node dissection in the Department of Thoracic Surgery of Peking University First Hospital from January 2007 to December 2016 were retrospectively analyzed. There were 180 males and 81 females, aged (61.5±9.4) years (range: 31 to 83 years). There were 128 cases of HMLN-positive and 133 cases of HMLN-negative. They were pathologically confirmed N2 stage NSCLC and postoperative recurrence and survival were followed up. The Kaplan-Meier method was used to calculate disease-free survival (DFS) and overall survival (OS) curves according to whether HMLN metastasize or not. The Cox proportional hazards regression model was used for the prognostic analysis. Results: The median DFS and the median OS of the whole group were 28 months and 44 months, respectively. The median DFS in HMLN-positive and HMLN-negative patients was 19 months and 33 months, respectively (P=0.005). The median OS of HMLN-positive and HMLN-negative group was 37 months and 49 months, respectively (P=0.005). Multivariate analysis showed that pneumonectomy and visceral pleural invasion were independent risk factors for both postoperative OS (HR=1.85, 95%CI: 1.25 to 2.72, P=0.002; HR=1.82, 95%CI: 1.30 to 2.56, P=0.007) and DFS (HR=1.61, 95%CI: 1.10 to 2.35, P=0.014; HR=1.77, 95%CI: 1.27 to 2.46,P=0.001). HMLN metastasis and lymphovascular invasion were independent risk factors for only postoperative DFS (HR=1.39, 95%CI: 1.03 to 1.87, P=0.030; HR=1.40, 95%CI: 0.99 to 1.81, P=0.042). Conclusions: For patients of pN2 stage NSCLC, both postoperative recurrence and long-term survival were significantly worse in the HMLN metastatic group. In addition, pneumonectomy and visceral pleural invasion were unfavorable factors that affected both recurrence and overall survival. HMLN metastasis and lymphovascular invasion could shorten the postoperative time for DFS.
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Affiliation(s)
- J W Liu
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - X N Zhang
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - G Lin
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - J Li
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
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5
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Jiang M, Xu Q, Yang C, Li D, Liu JW, Zhang Y, Zhu YC, Xiong ZQ. Activity-Dependent Phosphorylation of CDKL5 at Serine 407 Regulates Synaptogenesis and Plasticity. Neurosci Bull 2023; 39:1454-1458. [PMID: 37198422 PMCID: PMC10465469 DOI: 10.1007/s12264-023-01066-1] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 03/05/2023] [Indexed: 05/19/2023] Open
Affiliation(s)
- Mengying Jiang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiwu Xu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Can Yang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Dan Li
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Ji-Wei Liu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Yuxian Zhang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yong-Chuan Zhu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200030, China
| | - Zhi-Qi Xiong
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, 200031, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Shanghai Center for Brain Science and Brain-Inspired Intelligence Technology, Shanghai, 201210, China.
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China.
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Chen D, Ning Z, Chen H, Lu C, Liu X, Xia T, Qi H, Wang W, Ling T, Guo X, Tekcham DS, Liu X, Liu J, Wang A, Yan Q, Liu JW, Tan G, Piao HL. Correction to: An integrative pan-cancer analysis of biological and clinical impacts underlying ubiquitin-specific-processing proteases. Oncogene 2022; 41:5413. [PMID: 36400973 DOI: 10.1038/s41388-022-02514-4] [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: 11/19/2022]
Affiliation(s)
- Di Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Zhen Ning
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,The First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, 116000, China
| | - Huan Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chang Lu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,The First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, 116000, China
| | - Xiaolong Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Tian Xia
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Huan Qi
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Wen Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Ting Ling
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xin Guo
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.,The First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, 116000, China
| | - Dinesh Singh Tekcham
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiumei Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Jing Liu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Aman Wang
- The First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, 116000, China
| | - Qiu Yan
- The First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, 116000, China
| | - Ji-Wei Liu
- The First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, 116000, China.
| | - Guang Tan
- The First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, 116000, China.
| | - Hai-Long Piao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Scientific Research Center for Translational Medicine, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China. .,University of Chinese Academy of Sciences, Beijing, 100049, China.
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Dai MY, Zhang YL, Sun YX, Lyu X, Zhang XX, Sun XL, Fang FQ, Liu JW, Xia YL, Liu Y. [Cardiovascular events and risk factors in hematological neoplasms patients treated with anthracyclines]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:1058-1063. [PMID: 36418272 DOI: 10.3760/cma.j.cn112148-20220727-00584] [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: 06/16/2023]
Abstract
Objective: To explore the incidence and risk factors of cardiovascular events in hematological neoplasms patients treated with anthracyclines in the real world. Methods: A total of 408 patients with lymphoma and leukemia, who were treated with anthracyclines during hospitalization in the First Affiliated Hospital of Dalian Medical University from January 1, 2018 to July 31, 2021, were included in this retrospective study. Patients were divided into cardiovascular event group (n=74) and non-cardiovascular event group (n=334). The primary endpoint was cardiovascular events (arrhythmia, heart failure, acute myocardial infarction etc.) after anthracyclines therapy. The secondary endpoint was all-cause mortality, cardiovascular-cause death, discontinued chemotherapy due to cardiovascular events. Multivariate regression analysis was used to investigate the risk factors of cardiovascular events. Kaplan-Meier was performed to calculate the incidence of all-cause mortality. Results: The mean age was (55.6±14.9) years, and there were 227 male patients (55.6%) in this cohort. The median follow-up time was 45 months. During follow-up, cardiovascular adverse events occurred in 74 patients (18.1%), including 45 heart failure (38 were heart failure with preserved ejection fraction), 30 arrhythmia, 4 acute myocardial infarction and 2 myocarditis/pericarditis. Multivariate regression analysis showed age (OR=1.024, 95%CI 1.003-1.045, P=0.027) and history of hypertension over 10 years (OR=2.328, 95%CI 1.055-5.134, P=0.036) were independent risk factors for the cardiovascular events. Kaplan-Meier survival curve showed mortality was significantly higher in cardiovascular event group than in non-cardiovascular event group (47.3% vs. 26.6%, P=0.001). In the cardiovascular event group, chemotherapy was discontinued in 9 cases (12.2%) due to cardiovascular events and cardiovascular death occurred in 7 cases (9.5%). Conclusions: Although heart failure is the main cardiovascular event in lymphoma and leukemia patients post anthracyclines therapy, other cardiovascular events especially arrhythmias are also common. The presence of cardiovascular events is associated with higher risk of all-cause mortality in these patients. Age and long-term hypertension are independent risk factors for cardiovascular events in lymphoma and leukemia patients after anthracyclines treatment.
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Affiliation(s)
- M Y Dai
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Y L Zhang
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Y X Sun
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - X Lyu
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - X X Zhang
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - X L Sun
- Department of Hematology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - F Q Fang
- Department of Oncology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - J W Liu
- Department of Oncology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Y L Xia
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
| | - Y Liu
- Department of Cardiology, First Affiliated Hospital of Dalian Medical University, Dalian 116011, China
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Wei MY, Fang SA, Liu JW. Design and Implementation of a New Training Flight Simulator System. Sensors (Basel) 2022; 22:7933. [PMID: 36298291 PMCID: PMC9667527 DOI: 10.3390/s22207933] [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] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/08/2022] [Accepted: 10/16/2022] [Indexed: 06/16/2023]
Abstract
Aircraft flight simulators have good cost efficiency, high reusability, and high flight safety. All airlines and aircraft manufacturing companies choose it as sophisticated training equipment for ground simulation, effectively reducing pilot training costs, ensuring personnel safety and aircraft wear and tear. The new simulator proposed in this paper combines a digital motion-cueing algorithm, flight software and motion platform to make pilots feel as if they are in the real world. By using EtherCAT technology to drive the motion-cueing platform, it can improve the data transmission speed of the simulator as well as the strong anti-interference ability of communication and the control operation efficiency. Therefore, the simulated flight subjects can perform long-distance and large-angle training. Next, a set of measurement systems was established to provide monitoring items including attitude, velocity and acceleration, which can be displayed on the screen and recorded on the computer in real time and dynamically. Finally, seven training subjects were implemented to demonstrate the feasibility and correctness of the proposed method.
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Liu JW, Li H, Zhang Y. Npas3 regulates stemness maintenance of radial glial cells and neuronal migration in the developing mouse cerebral cortex. Front Cell Neurosci 2022; 16:865681. [PMID: 36313621 PMCID: PMC9608153 DOI: 10.3389/fncel.2022.865681] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
The neuronal PAS domain 3 (NPAS3) is a member of the basic helix-loop-helix (bHLH) PAS family of transcription factors and is implicated in psychiatric and neurodevelopmental disorders. NPAS3 is robustly expressed in the cortical ventricle zone (VZ), a transient proliferative zone containing progenitor cells, mainly radial glial cells, destined to give rise to cortical excitatory neurons. However, the role of NPAS3 in corticogenesis remains largely unknown. In this study, we knocked down Npas3 expression in the neural progenitor cells residing in the cortical VZ to investigate the role of Npas3 in cerebral cortical development in mice. We demonstrated that Npas3 knockdown profoundly impaired neuronal radial migration and changed the laminar cell fate of the cells detained in the deep cortical layers. Furthermore, the downregulation of Npas3 led to the stemness maintenance of radial glial cells and increased the proliferation rate of neural progenitor cells residing in the VZ/subventricular zone (SVZ). These findings underline the function of Npas3 in the development of the cerebral cortex and may shed light on the etiology of NPAS3-related disorders.
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Liu YY, Li ZX, Tan ZJ, Fang W, Tan HM, Fu D, Huang ZG, Liu JW, Liu T, He GH, Zhu S, Ma WJ. [A time-series study on the association of ambient temperature with daily outpatient visits of eczema in Huizhou city]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1423-1428. [PMID: 36274608 DOI: 10.3760/cma.j.cn112150-20220402-00316] [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: 06/16/2023]
Abstract
Objective: To explore the impact of environmental temperature exposure on eczema visits. Methods: Eczema clinic data from January 1, 2016 to December 31, 2019 were collected from the Huizhou Dermatology Hospital, and data on meteorological factors (average daily temperature and relative humidity) for the same period were derived from 86 meteorological stations of the Guangdong Provincial Climate Center. A distributed lag nonlinear model (DLNM) was used to assess the lagged effect of environmental temperature exposure on eczema, and a natural smooth spline function was used to control the nonlinear confounding of humidity. Results: There were 254 053 eczema outpatient visits at the Huizhou Dermatology Hospital within four years, with an average of 173.89 visits per day. The relationship between daily average temperature and the number of visits was non-linear (U shape). The risk of eczema increased by 2.20% (1.19%-3.21%) for every 1 ℃ decrease for the low temperature, and increased by 2.35% (1.24%-3.5%) for every 1 ℃ increase for the high temperature. The effect of high temperature was greater than that of low temperature. In all cases, 1.60% (0.44%-2.68%) of eczema outpatient visits were attributed to low temperature and the attributable number was 4 065 (1 128-6 798), while 6.33% (1.40%-10.87%) of eczema outpatient visits were due to high temperature and the attributable number was 16 082 (3 557-27 616). Conclusion: Both high temperature and low temperature are associated with increased risk of eczema.
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Affiliation(s)
- Y Y Liu
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - Z X Li
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - Z J Tan
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - W Fang
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - H M Tan
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - D Fu
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - Z G Huang
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - J W Liu
- Huizhou Dermatology Hospital, Huizhou 516008, China
| | - T Liu
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - G H He
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - S Zhu
- School of Medicine, Jinan University, Guangzhou 510632, China
| | - W J Ma
- School of Medicine, Jinan University, Guangzhou 510632, China
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11
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Wang L, Otkur W, Wang A, Wang W, Lyu Y, Fang L, Shan X, Song M, Feng Y, Zhao Y, Piao HL, Qi H, Liu JW. Norcantharidin overcomes vemurafenib resistance in melanoma by inhibiting pentose phosphate pathway and lipogenesis via downregulating the mTOR pathway. Front Pharmacol 2022; 13:906043. [PMID: 36034784 PMCID: PMC9411668 DOI: 10.3389/fphar.2022.906043] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 06/28/2022] [Indexed: 12/04/2022] Open
Abstract
Melanoma is the most aggressive type of skin cancer with a high incidence and low survival rate. More than half of melanomas present the activating BRAF mutations, along which V600E mutant represents 70%–90%. Vemurafenib (Vem) is an FDA-approved small-molecule kinase inhibitor that selectively targets activated BRAF V600E and inhibits its activity. However, the majority of patients treated with Vem develop acquired resistance. Hence, this study aims to explore a new treatment strategy to overcome the Vem resistance. Here, we found that a potential anticancer drug norcantharidin (NCTD) displayed a more significant proliferation inhibitory effect against Vem-resistant melanoma cells (A375R) than the parental melanoma cells (A375), which promised to be a therapeutic agent against BRAF V600E-mutated and acquired Vem-resistant melanoma. The metabolomics analysis showed that NCTD could, especially reverse the upregulation of pentose phosphate pathway and lipogenesis resulting from the Vem resistance. In addition, the transcriptomic analysis showed a dramatical downregulation in genes related to lipid metabolism and mammalian target of the rapamycin (mTOR) signaling pathway in A375R cells, but not in A375 cells, upon NCTD treatment. Moreover, NCTD upregulated butyrophilin (BTN) family genes, which played important roles in modulating T-cell response. Consistently, we found that Vem resistance led to an obvious elevation of the p-mTOR expression, which could be remarkably reduced by NCTD treatment. Taken together, NCTD may serve as a promising therapeutic option to resolve the problem of Vem resistance and to improve patient outcomes by combining with immunomodulatory therapy.
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Affiliation(s)
- Lei Wang
- Department of Oncology, First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- Department of Geriatric Oncology, Dalian Friendship Hospital, Dalian, China
| | - Wuxiyar Otkur
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Aman Wang
- Department of Oncology, First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Wen Wang
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Yitong Lyu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Lei Fang
- Department of Thoracic Surgery, Lung Cancer Diagnosis and Treatment Center of Dalian, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiu Shan
- Department of Oncology, First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Mingzhou Song
- Department of Computer Science, New Mexico State University, Las Cruces, NM, United States
- Graduate Program in Molecular Biology and Interdisciplinary Life Sciences, New Mexico State University, Las Cruces, NM, United States
| | - Yan Feng
- Department of Geriatric Oncology, Dalian Friendship Hospital, Dalian, China
| | - Yi Zhao
- Department of Oncology, First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
| | - Hai-Long Piao
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- *Correspondence: Hai-Long Piao, ; Ji-Wei Liu, ; Huan Qi,
| | - Huan Qi
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
- *Correspondence: Hai-Long Piao, ; Ji-Wei Liu, ; Huan Qi,
| | - Ji-Wei Liu
- Department of Oncology, First Affiliated Hospital of Dalian Medical University, Dalian Medical University, Dalian, China
- *Correspondence: Hai-Long Piao, ; Ji-Wei Liu, ; Huan Qi,
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12
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Zheng FM, Long ZJ, Hou ZJ, Luo Y, Xu LZ, Xia JL, Lai XJ, Liu JW, Wang X, Kamran M, Yan M, Shao SJ, Lam EWF, Wang SW, Lu G, Liu Q. Correction: A Novel Small Molecule Aurora Kinase Inhibitor Attenuates Breast Tumor Initiating Cells and Overcomes Drug Resistance. Mol Cancer Ther 2022; 21:856. [PMID: 35506259 DOI: 10.1158/1535-7163.mct-22-0150] [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: 11/16/2022]
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13
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Liu JW, Zhang XN. [Recent advances in diagnosis of pulmonary nodule]. Zhonghua Wai Ke Za Zhi 2022; 60:498-503. [PMID: 35359092 DOI: 10.3760/cma.j.cn112139-20211123-00551] [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: 06/14/2023]
Abstract
With the popularization of health screening and the widespread use of low-dose computed tomography, the detection rate of lung nodules has increased year after year. However, the false positive rates testified by surgery of these lung nodules are still high. Therefore, it is vital in clinical practice to avoid overtreatment or undertreatment. But a series of problems on how to make an accurate diagnosis, how to reduce the psychological pressure of patients and follow up with regular imaging, how to clarify the indications for surgery and adopt the most minimally invasive diagnosis and treatment methods, etc. remain unsolved. Over the past decade, the diagnostic techniques for pulmonary nodules have improved significantly, including imaging progress such as the optimization of traditional imaging techniques (CT, MRI) and the emergence of new technologies (radiomics, artificial intelligence). In addition, histological improvements including percutaneous transthoracic needle biopsy, bronchoscopy, and minimally invasive surgical biopsy, etc. have brought more reliable and precise options for characterization of pulmonary nodules.
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Affiliation(s)
- J W Liu
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - X N Zhang
- Department of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
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14
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Li E, Zou XL, Xu LQ, Chu YQ, Feng X, Lian H, Liu HQ, Liu AD, Han MK, Dong JQ, Wang HH, Liu JW, Zang Q, Wang SX, Zhou TF, Huang YH, Hu LQ, Zhou C, Qu HX, Chen Y, Lin SY, Zhang B, Qian JP, Hu JS, Xu GS, Chen JL, Lu K, Liu FK, Song YT, Li JG, Gong XZ. Experimental Evidence of Intrinsic Current Generation by Turbulence in Stationary Tokamak Plasmas. Phys Rev Lett 2022; 128:085003. [PMID: 35275672 DOI: 10.1103/physrevlett.128.085003] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 09/16/2021] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
High-β_{θe} (a ratio of the electron thermal pressure to the poloidal magnetic pressure) steady-state long-pulse plasmas with steep central electron temperature gradient are achieved in the Experimental Advanced Superconducting Tokamak. An intrinsic current is observed to be modulated by turbulence driven by the electron temperature gradient. This turbulent current is generated in the countercurrent direction and can reach a maximum ratio of 25% of the bootstrap current. Gyrokinetic simulations and experimental observations indicate that the turbulence is the electron temperature gradient mode (ETG). The dominant mechanism for the turbulent current generation is due to the divergence of ETG-driven residual flux of current. Good agreement has been found between experiments and theory for the critical value of the electron temperature gradient triggering ETG and for the level of the turbulent current. The maximum values of turbulent current and electron temperature gradient lead to the destabilization of an m/n=1/1 kink mode, which by counteraction reduces the turbulence level (m and n are the poloidal and toroidal mode number, respectively). These observations suggest that the self-regulation system including turbulence, turbulent current, and kink mode is a contributing mechanism for sustaining the steady-state long-pulse high-β_{θe} regime.
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Affiliation(s)
- Erzhong Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - X L Zou
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
| | - L Q Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Y Q Chu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - X Feng
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - H Lian
- University of California Los Angeles, Los Angeles, California 90095, USA
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - A D Liu
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - M K Han
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, People's Republic of China
| | - J Q Dong
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, People's Republic of China
| | - H H Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J W Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - Q Zang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - T F Zhou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Y H Huang
- Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - L Q Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - C Zhou
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - H X Qu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - Y Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - S Y Lin
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - B Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J P Qian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J S Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - G S Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J L Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - K Lu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - F K Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Y T Song
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J G Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - X Z Gong
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
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Manawasinghe IS, Calabon MS, Jones EBG, Zhang YX, Liao CF, Xiong YR, Chaiwan N, Kularathnage ND, Liu NG, Tang SM, Sysouphanthong P, Du TY, Luo M, Pasouvang P, Pem D, Phonemany M, Ishaq M, Chen JW, Karunarathna SC, Mai ZL, Rathnayaka AR, Samarakoon MC, Tennakoon DS, Wijesinghe SN, Yang YH, Zhao HJ, Fiaz M, Doilom M, Dutta AK, Khalid AN, Liu JW, Thongklang N, Senanayake IC, Tibpromma S, You LQ, Camporesi E, Gafforov YS, Hyde KD KD. Mycosphere notes 345–386. MYCOSPHERE 2022. [DOI: 10.5943/mycosphere/13/1/3] [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: 11/06/2022] Open
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16
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Liu JW, Supandi F, Dhillon SK. Ferroptosis-Related Long Noncoding RNA Signature Predicts Prognosis of Clear Cell Renal Carcinoma. Folia Biol (Praha) 2022; 68:1-15. [PMID: 36201853] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Clear cell renal cell carcinoma (ccRCC) is very common and accounts for most kidney cancer deaths. While many studies are being conducted in finding the prognostic signatures of ccRCC, we believe that ferroptosis, which involves programmed cell death dependent on iron accumulation, has therapeutic potential in ccRCC. Recent research has shown that long noncoding RNAs (lncRNAs) are involved in ferroptosis-related tumour processes and are closely related to survival in patients with ccRCC. Hence, in this study we aim to further explore the role of ferroptosis-related lncRNAs (FRLs) in ccRCC, hoping to establish a signature to predict the survival outcome of ccRCC. We analysed transcriptome data from The Cancer Genome Atlas database (TCGA) and ferroptosis-related genes (FRGs) from FerrDb to identify FRLs using Pearson's correlation. Lasso Cox regression analysis and multivariate Cox proportional hazards models screened seventeen optimal FRLs for developing prognostic signatures. Kaplan-Meier survival curves and ROC curves were then plotted for validating the sensitivity, specificity, and accuracy of the identified signatures. Gene Set Enrichment Analysis and CIBERSORT algorithm were deployed to explore the role of these FRLs in the tumour microenvironment. It was concluded that these models demonstrate excellent performance in predicting prognosis among patients with ccRCC, also indicating association with the clinicopathologic parameters such as tumour grade, tumour stage and tumour immune infiltration. In conclusion, our findings provide novel insights into ferroptosis-related lncRNAs in ccRCC, which are important targets for investigating the tumorigenesis of ccRCC.
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Affiliation(s)
- J W Liu
- Institute of Biological Sciences, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia
| | - F Supandi
- Institute of Biological Sciences, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia
| | - S K Dhillon
- Institute of Biological Sciences, Faculty of Science, University Malaya, Kuala Lumpur, Malaysia
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Liu JW, Liu HT, Chen L. The Therapeutic Role of Slit2 in Anti-fibrosis, Anti-inflammation and Anti-oxidative Stress in Rats with Coronary Heart Disease. Cardiovasc Toxicol 2021; 21:973-983. [PMID: 34410632 DOI: 10.1007/s12012-021-09688-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/05/2021] [Indexed: 11/28/2022]
Abstract
To investigate the efficacy of Slit2 in the rats with coronary heart disease (CHD). CHD model were constructed by feeding high-fat food and injecting with pituitrin in rat, followed by recombinant Slit2 treatment, and then the cardiac function was evaluated by echocardiography, and the indicators concerning the cardiomyocyte injury markers and lipoprotein status and oxidative stress were measured. The Slit2 expression in the heart tissues was identified by immunofluorescence. Enzyme-linked immunosorbent assay (ELISA) was carried out to detect inflammatory cytokines, H2DCFDA staining to determine the ROS generation in heart tissues, Masson trichrome staining to observe myocardial fibrosis, and qRT-PCR and Western blotting to detect gene and protein expressions. Slit2 decreased the levels of LDH, CK-MB, cTnI, TG, TC and LDL-C and increased HDL-C level in CHD rats. In the normal heart tissues, Slit2 expression was significantly lower in cardiomyocytes than cardiac fibroblasts. Furthermore, the expressions of VCAM-1, ICAM-1, fibronectin and TGF-β1 were increased in the heart tissues of CHD rats with the obvious myocardial fibrosis, which were dose-dependently reversed by recombinant Slit2. In addition, recombinant Slit2 also dose-dependently increased the activity of NO, SOD, CAT and GSH-Px, and decreased TNF-α, IL-6, MCP-1, MDA and ROS in CHD rats. Slit2 was downregulated in myocardial tissue and plasma of CHD rats. Recombinant Slit2, by regulating the level of blood lipid, can relieve the myocardial fibrosis, inflammation and oxidative stress in CHD.
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Affiliation(s)
- Ji-Wei Liu
- Heart Function Examination Room, Jingzhou Central Hospital, Hubei, China
| | - Hai-Tao Liu
- Department of Cardiovascular Medicine, Binzhou People's Hospital, Shandong, China
| | - Lin Chen
- Department of Cardiology, the People's Hospital of Rizhao, No. 126, Tai'an Road, Rizhao, 276826, China.
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18
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He CH, Liu JW, Zhu ZH, Pan HW, Zheng ZF, He J, Liu ZY, Zhang Y, Wang CL, Rong JJ, Tang Y, Zhang QH. [Establishment and validation of a new predictive equation with multiple risk factors for the development of cardiorenal syndrome type 1 in patients with acute myocardial infarction]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:802-808. [PMID: 34404190 DOI: 10.3760/cma.j.cn112148-20201118-00916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the independent risk factors of cardiorenal syndrome type 1 (CRS1) in patients with acute myocardial infarction (AMI) and to build a predictive equation for the development of CRS1 in these patients. Method: Consecutive inpatients with AMI, who hospitalized from January 2017 to December 2018 in the Hunan Provincial People's Hospital, were enrolled in this case-control study. Patients were divided into CRS1 group and non-CRS1 group according to the presence or absence of CRS1.The clinical data were collected through the electronic medical record system of Hunan Provincial People's Hospital. The matching process was conducted with a minimum-distance scoring method and a 1∶1 match between the CRS1 group and the no-CRS1 group, the propensity score was calculated through the logistic regression model. Factors with statistically significant differences in univariate analysis were included in the multivariate logistic regression model to analyze the risk factors of AMI patients with CRS1, then the independent risk factors were used to establish a predicting equation for CRS1 by logistic regression function for model building. Area under the curve (AUC) value and the best cut-off value of the combined predictors was determined according to the ROC curve. Python 3.8 software was used to perform 10-fold cross-validation on modeling samples. Results: A total of 942 patients were included, there were 113 cases in CRS1 group and 829 cases in non-CRS1 group. Ultimately, 99 CRS1 patients were successfully matched to 99 non-CRS1 patient using 1∶1 matching. After propensity score matching, the baseline age and sex along with heart rate, mean arterial pressure, percentage of people with a history of diabetes, hypertension, ST-segment elevation myocardial infarction, myocardial ischemia time, angiotensin converting enzyme inhibitors or angiotensin Ⅱ receptor blockers use, and β receptor blocker use were similar between the two groups(all P>0.05). The contrast agent dosage was also similar between the two groups (P=0.266). The peak cardiac troponin I (cTnI), N-terminal pro-brain natriuretic peptide(NT-proBNP), white blood cell count, base estimated glomerular filtration rate (eGFR), albumin and hemoglobin levels were statistically significant between the two groups (all P<0.05). Multivariate logistic regression analysis showed that decreased baseline eGFR, increased NT-proBNP, peak cTnI concentrations and white blood cell count were independent risk factors of CRS1 in AMI patients (all P<0.01).The predicting equation of the combined predictor was established by transforming the logistic model equation, L=0.031×cTnI+0.000 2×NT-proBNP-0.024×eGFR+0.254×white blood cell count, where L represented the combined predictor. ROC curve analysis indicated that the AUC of the peak cTnI, NT-proBNP, baseline eGFR, white blood cell count, and combined predictor were 0.76, 0.85, 0.79, 0.81, and 0.92 respectively (all P<0.05), and the cutoff value of combined predictor was 2.6. The AUC of ROC curve after the model's ten-fold cross validation was 0.89. Conclusions: Decreased baseline eGFR, increased NT-proBNP, peak cTnI concentrations and white blood cell count are the independent risk factors for CRS1 in AMI patients. The combined predictor equation based on the above 4 biomarkers presents a good predictive value for CRS1 in AMI patients.
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Affiliation(s)
- C H He
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - J W Liu
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Z H Zhu
- Department of Cardiology, Luohe Central Hospital, Luohe 462000, China
| | - H W Pan
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Z F Zheng
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - J He
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Z Y Liu
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Y Zhang
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - C L Wang
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - J J Rong
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Y Tang
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
| | - Q H Zhang
- Department of Cardiology, Hunan Provincial People's Hospital, First Affiliated Hospital of Hunan Normal University, Changsha 410000, China
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19
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Fan JY, Li SL, Jiang M, Tao B, Cao RH, Zhang JB, Tian L, Liu JW, Wang HB, Cao F. [Biocompatibility of extracellular matrix hydrogel with human iPSCs differentiated cardiomyocytes]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:487-495. [PMID: 34034383 DOI: 10.3760/cma.j.cn112148-20200909-00721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the biocompatibility of porcine omental derived extracellular matrix (ECM) hydrogel with human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) and the feasibility of ECM hydrogel as a delivery vector of cell transplantation. Methods: A series of chemical, physical and enzymatic methods were applied to acellularize the porcine omentum. Subsequently, the extracted ECM was prepared into thermosensitive hydrogel. The biochemical composition of the hydrogel was identified by histological staining. The microstructure was observed by scanning electron microscopy. The hydrogel was then injected into the myocardium of mice to observe its in situ gelation ability. Differentiation of human induced pluripotent stem cells into cardiomyocytes was achieved by small molecule induction, and then the obtained hiPSC-CMs were cultured. hiPSC-CMs cultured onto the prepared hydrogel were defined as the hydrogel group, while conventionally cultured hiPSC-CMs were defined as the control group. Cardiomyocyte viability and growth patterns were detected using live/dead staining, CCK-8 and phalloidin staining. Immunofluorescence staining and Western blot of cardiomyocytes were used to determine the survival and phenotypic maintenance markers of cardiomyocytes in materials. Results: The results of HE staining, oil red O staining and DAPI fluorescence staining showed that there was no significant cell debris, nucleus and lipid residue in the prepared ECM hydrogel. The Sirius red staining and Alcian blue staining showed that the hydrogel retained collagen and glycolaminoglycan, which were the main components of ECM. The prepared hydrogel behaves as a viscous liquid at 4 ℃ and as a gel state at 37 ℃. Scanning electron microscope results showed that the microstructure of the hydrogel was composed of irregular fibers and pores of different sizes. Under the guidance of ultrasound, the prepared ECM hydrogel could be successfully injected into the myocardium of mice. Immediately after the injection, the hyperechoic signal could be observed under ultrasound, suggesting that the hydrogel remained in the myocardium. HE staining of myocardial tissue evidenced that there was lump of gel in the injection area. The differentiated hiPSC-CMs were co-cultured with the prepared ECM hydrogel, and the results of live/dead staining showed that most of the hiPSC-CMs in the hydrogel group and the control group were alive, dead cells were scanty. The results of CCK-8 test showed that the absorbance values of the two groups were similar (P>0.05). The results of phalloidin staining showed that hiPSC-CMs could extend normally when co-cultured with ECM hydrogel. The cell morphology of the hydrogel group was similar with that of the control group, and there was no statistically significant difference in the F-actin coverage area per cell between the two groups (P>0.05). Immunofluorescence staining of cardiomyocyte markers showed that there was no significant difference in the coverage area of α-actinin and connexin-43 (Cx-43) per field between the hydrogel group and the control group (both P>0.05), the quantitative results of DAPI staining showed that there was no statistically significant difference in the number of cells between the two groups (P>0.05). Meanwhile, the results of Western blot showed that the expression levels of α-actinin and Cx-43 in cardiomyocytes in the hydrogel group were similar as those in the control group (both P>0.05). Conclusions: These results show that preparation of the ECM hydrogel from porcine omentum is successful. The hydrogel has good biocompatibility and no obvious cytotoxicity. Besides, the hydrogel can support the survival of hiPSC-CMs in vitro and maintain its phenotype. These properties make it a promising injectable cardiac tissue engineering material.
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Affiliation(s)
- J Y Fan
- Department of Medicine, Qingdao University, Qingdao 266071, China Second Medical Center, PLA General Hospital, Beijing 100853, China National Clinical Medical Research Center for Geriatric Diseases, PLA General Hospital, Beijing 100853, China
| | - S L Li
- Second Medical Center, PLA General Hospital, Beijing 100853, China
| | - M Jiang
- Second Medical Center, PLA General Hospital, Beijing 100853, China
| | - B Tao
- Second Medical Center, PLA General Hospital, Beijing 100853, China
| | - R H Cao
- Second Medical Center, PLA General Hospital, Beijing 100853, China
| | - J B Zhang
- Second Medical Center, PLA General Hospital, Beijing 100853, China
| | - L Tian
- Second Medical Center, PLA General Hospital, Beijing 100853, China
| | - J W Liu
- Second Medical Center, PLA General Hospital, Beijing 100853, China
| | - H B Wang
- College of Life Sciences and Bioengineering, Beijing Jiaotong University, Beijing 100044, China
| | - F Cao
- Department of Medicine, Qingdao University, Qingdao 266071, China Second Medical Center, PLA General Hospital, Beijing 100853, China National Clinical Medical Research Center for Geriatric Diseases, PLA General Hospital, Beijing 100853, China
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Huang LJ, Shi ST, Cui J, Liu JW, Ouyang LZ, Wang H. Thermally-assisted milling and hydrogenolysis for synthesizing ultrafine MgH 2with destabilized thermodynamics. Nanotechnology 2021; 32:285402. [PMID: 33765675 DOI: 10.1088/1361-6528/abf20e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
A novel process has been developed to synthesize MgH2nanoparticles by combining ball milling and thermal hydrogenolysis of di-n-butylmagnesium (C4H9)2Mg, denoted as MgBu2. With the aid of mechanical impact, the hydrogenolysis temperature of MgBu2in heptane and cyclohexane solution was considerably lowered down to 100 °C, and the MgH2nanoparticles with an average particle size ofca.8.9 nm were obtained without scaffolds. The nano-size effect of the MgH2nanoparticles causes a notable decrease in the onset dehydrogenation temperature of 225 °C and enthalpy of 69.78 kJ mol-1 · H2. This thermally-assisted milling and hydrogenolysis process may also be extended for synthesizing other nanomaterials.
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Affiliation(s)
- L J Huang
- Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, South China University of Technology, Guangzhou, 510641, People's Republic of China
| | - S T Shi
- Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, South China University of Technology, Guangzhou, 510641, People's Republic of China
| | - J Cui
- Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, South China University of Technology, Guangzhou, 510641, People's Republic of China
| | - J W Liu
- Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, South China University of Technology, Guangzhou, 510641, People's Republic of China
| | - L Z Ouyang
- Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, South China University of Technology, Guangzhou, 510641, People's Republic of China
| | - H Wang
- Key Laboratory of Advanced Energy Storage Materials of Guangdong Province, South China University of Technology, Guangzhou, 510641, People's Republic of China
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21
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Yang LP, Wang ZX, Zhang R, Zhou N, Wang AM, Liang W, Wang ZQ, Luo HY, Wang F, Liu JW, Liu F, Zhang XC, Liu YP, Jin Y. Association between cigarette smoking and colorectal cancer sidedness: A multi-center big-data platform-based analysis. J Transl Med 2021; 19:150. [PMID: 33858440 PMCID: PMC8048178 DOI: 10.1186/s12967-021-02815-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 04/02/2021] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Sidedness (right/left) of colorectal cancer (CRC) is essential for treatment. Whether carcinogenesis of tobacco varies by sidedness remains unclear. The present study aims to evaluate the sidedness tendency of cigarette smoking and to explore its impact on prognosis. METHODS In the multi-center retrospective study, data on 46 166 Chinese CRC patients were extracted from a big-data platform. Logistic regression analyses were performed to evaluate qualitative and quantitative associations between smoking and tumor sidedness. Survival analyses were conducted in metastatic CRC. RESULTS History of smoking was associated with left-sided CRC (LSCRC; Adjusted odds ratio, 1.25; 95% CI, 1.16 - 1.34; P < .001). The sidedness tendency towards LSCRC increased from non-smokers, to ex-smokers, and to current smokers (P for trend < .001). Longer duration (P for trend < .001) and larger total amount of cigarette smoking (P for trend < .001) were more associated with LSCRC, respectively. The association was confirmed in both left-sided colon cancer and rectal cancer, but was stronger for rectal cancer (P = .016). Alcoholism significantly enhanced the association by 7% (P = .027). Furthermore, prognostic advantage of metastatic LSCRC diminished among ever-smokers, with contrary survival impacts of smoking on either side of CRC. CONCLUSIONS History of smoking was associated with LSCRC in a positive dose-response relationship, and presented opposite prognostic impacts on right- and left-sided tumors. Smoking potentially plays an instrumental role in the mechanism for sidedness heterogeneity in CRC.
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Affiliation(s)
- Lu-Ping Yang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dong Feng Road East, Guangzhou, 510060, China
| | - Zi-Xian Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dong Feng Road East, Guangzhou, 510060, China
| | - Rui Zhang
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, China
| | - Na Zhou
- Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, No. 59 Haier Road, Qingdao, 266016, China
| | - A-Man Wang
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, China
| | - Wei Liang
- Yiducloud Technology Ltd, Beijing, 100083, China
| | - Zhi-Qiang Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dong Feng Road East, Guangzhou, 510060, China
| | - Hui-Yan Luo
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dong Feng Road East, Guangzhou, 510060, China
| | - Feng Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dong Feng Road East, Guangzhou, 510060, China
| | - Ji-Wei Liu
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, 116011, China
| | - Fang Liu
- Department of Colorectal Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, China
| | - Xiao-Chun Zhang
- Precision Medicine Center of Oncology, The Affiliated Hospital of Qingdao University, No. 59 Haier Road, Qingdao, 266016, China.
| | - Yun-Peng Liu
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang, 110001, China.
| | - Ying Jin
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-Sen University Cancer Center, 651 Dong Feng Road East, Guangzhou, 510060, China.
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22
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Liang FQ, Gao JY, Liu JW. C-X-C motif chemokine 16, modulated by microRNA-545, aggravates myocardial damage and affects the inflammatory responses in myocardial infarction. Hum Genomics 2021; 15:15. [PMID: 33637127 PMCID: PMC7908694 DOI: 10.1186/s40246-021-00314-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 10/18/2020] [Accepted: 02/11/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Myocardial infarction (MI), a common type of coronary heart disease, is the major cause of morbidity and mortality around the world. Chemokine-mediated inflammatory cell infiltration and local inflammatory damage response are recent research hotspots. Hence, we attempted to examine the role of C-X-C motif chemokine 16 (CXCL16) as a potential candidate in MI. METHODS Human cardiomyocytes were treated with hypoxia/reoxygenation (H/R) to establish an in vitro cell model. GEO database provided the clinical data of MI patients and GSEA verified the relationship of chemokine and MI. CCK-8 and flow cytometry analyses were used to measure cell viability and apoptosis. Bioinformatics analysis and luciferase reporter assay were conducted to determine the correlation between CXCL16 and miR-545. qRT-PCR and western blot assays were performed to investigate the expression level of the indicated genes. The activity of lactate dehydrogenase (LDH) and the levels of TNF-α, IL-6, IL-1β, and IL-10 were explored using ELISA assay. RESULTS CXCL16 was increased in MI. CXCL16 knockdown can reverse the inhibitory effect of H/R treatment on cell viability, while overexpression of CXCL16 showed the opposite trend. MiR-545 directly targeted CXCL16 and negatively regulated CXCL16 levels. MiR-545 promoted cell proliferation and inhibited apoptosis in the MI cell model, which attenuated the CXCL16-induced injury on cardiomyocytes. CONCLUSION These findings demonstrated that CXCL16 aggravated MI damage through being directly targeted by miR-545 and mediating inflammatory responses, thereby providing potential therapeutic targets for MI therapy.
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Affiliation(s)
- Fang-Qian Liang
- Department of General practice, North China University of science and technology affiliated Hospital, Tangshan, 063000, Hebei, People's Republic of China
| | - Jing-Yuan Gao
- Department of General practice, North China University of science and technology affiliated Hospital, Tangshan, 063000, Hebei, People's Republic of China
| | - Ji-Wei Liu
- Jingzhou Central Hospital, Heart function examination room, No.60 Jingzhong Road, Jingzhou District (Jingzhou ancient town flower terrace), Jingzhou, 434020, Hubei, People's Republic of China.
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23
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Li HC, Ma J, Zhang H, Cheng Y, Wang X, Hu ZW, Li N, Deng XR, Zhang Y, Zheng XZ, Yang F, Weng HY, Dong JP, Liu JW, Wang YY, Liu XM. [Thoughts and practice on the treatment of severe and critical new coronavirus pneumonia]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:396-400. [PMID: 32186172 DOI: 10.3760/cma.j.cn112147-20200312-00320] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Severe and critical coronavirus pneumonia 2019 (COVID-19) often occurs in elder patients with multiple comorbidities, and severe hypoxemia events constitute a key factor for the deterioration of some cases. The critical type of COVID-19 could progress into acute respiratory distress syndrome and multi-organ dysfunction, which are the major causes of death. Early non-invasive ventilation (NIV) treatment of possible pathophysiological abnormalities is helpful to improve prognosis. Close monitoring of oxygenation, reducing patients' oxygen consumption, active psychological intervention, and rapid handling of severe hypoxemia events are the key factors for successful NIV treatment. In addition, active adjuvant therapies such as correcting coagulation dysfunction, providing proper nutritional support, accurate volume control, and safe individualized blood glucose monitoring are of great significance.
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Affiliation(s)
- H C Li
- Division of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - J Ma
- Division of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - H Zhang
- Division of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Y Cheng
- Division of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - X Wang
- Division of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Z W Hu
- Division of Respiratory and Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - N Li
- Division of Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - X R Deng
- Division of Rheumatology, Peking University First Hospital, Beijing 100034, China
| | - Y Zhang
- Division of Endocrinology, Peking University First Hospital, Beijing 100034, China
| | - X Z Zheng
- Division of Nephrology, Peking University First Hospital, Beijing 100034, China
| | - F Yang
- Division of Cardiology, Peking University First Hospital, Beijing 100034, China
| | - H Y Weng
- Division of Cardiology, Peking University First Hospital, Beijing 100034, China
| | - J P Dong
- Division of Digestive Disease, Peking University First Hospital, Beijing 100034, China
| | - J W Liu
- Division of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - Y Y Wang
- Division of Thoracic Surgery, Peking University First Hospital, Beijing 100034, China
| | - X M Liu
- Division of Geriatrics, Peking University First Hospital, Beijing 100034, China
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24
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Liu ZH, Liu JW, Chan FS, Li MK, Fan JK. Intraoperative colonoscopy in laparoscopic colorectal surgery: A review of recent publications. Asian J Endosc Surg 2020; 13:19-24. [PMID: 30997741 DOI: 10.1111/ases.12704] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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] [Received: 12/13/2018] [Revised: 02/11/2019] [Accepted: 02/28/2019] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Laparoscopic colorectal resection is becoming the gold standard for treating colorectal cancers because it offers superior short-term and comparable long-time outcomes compared to open surgery. Intraoperative colonoscopy (IOC) is increasingly performed for tumor localization and mucosal assessment. The aim of this report was to review the safety and efficacy of IOC in laparoscopic colorectal surgery. METHOD A MEDLINE search of studies of IOC in laparoscopic colorectal surgery was performed. We focused on three aspects of IOC use: (i) IOC for intraoperative tumor localization; (ii) colonic irrigation and IOC for obstructive left-sided colorectal cancers; and (iii) IOC for assessing colorectal anastomosis. RESULTS During laparoscopic colorectal surgery, IOC enables accurate localization of early mucosal tumors, detection of lesions in the proximal unexamined colon for obstructive left-sided cancer, and visual assessment of anastomosis. Additionally, IOC allows for proper surgical resection, management of concomitant lesions, immediate maintenance of hemostasis, suture repair of leaks, and the creation of a protective stoma as necessary. CONCLUSIONS Intraoperative colonoscopy is beneficial in laparoscopic colorectal surgery. Experienced surgical endoscopists should be trained to safely perform IOC.
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Affiliation(s)
- Z H Liu
- Department of Surgery, The University Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - J W Liu
- Department of Surgery, The University Hong Kong-Shenzhen Hospital, Shenzhen, China
| | - Fion Sy Chan
- Department of Surgery, The University Hong Kong-Shenzhen Hospital, Shenzhen, China.,Department of Surgery, The University of Hong Kong, HKSAR, China
| | | | - Joe Km Fan
- Department of Surgery, The University Hong Kong-Shenzhen Hospital, Shenzhen, China.,Department of Surgery, The University of Hong Kong, HKSAR, China.,Asia Pacific Endo-Lap Surgery Group, HKSAR, China
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25
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Chen D, Ning Z, Chen H, Lu C, Liu X, Xia T, Qi H, Wang W, Ling T, Guo X, Tekcham DS, Liu X, Liu J, Wang A, Yan Q, Liu JW, Tan G, Piao HL. An integrative pan-cancer analysis of biological and clinical impacts underlying ubiquitin-specific-processing proteases. Oncogene 2019; 39:587-602. [DOI: 10.1038/s41388-019-1002-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 08/19/2019] [Accepted: 08/24/2019] [Indexed: 12/11/2022]
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26
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Liu JW, Wang P, Huang J, Nie XJ, Zhao F, Chen LZ, Li Z, Yu ZH. [Genetic variants of familial hematuria associated genes in three families with hematuria with probands initially diagnosed as IgA nephropathy]. Zhonghua Er Ke Za Zhi 2019; 57:674-679. [PMID: 31530352 DOI: 10.3760/cma.j.issn.0578-1310.2019.09.006] [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 genetic variants of familial hematuria (FH) associated genes in 3 families with hematuria with probands initially diagnosed with IgA nephropathy (IgAN). Methods: A retrospective analysis was performed on the clinical data, laboratory tests and genetic test results of three children with hematuria and the probands in three families with hematuria. The families were ascertained at the Department of Pediatrics, Fuzhou General Hospital of Nanjing Military Command from August 2014 to May 2018. Results: The proband of Family One, an 8-year-old boy, manifested gross hematuria. His renal biopsy pathology revealed IgAN. His father also manifested hematuria. Genetic testing showed that the proband and his father carried a heterozygous variant of the CFHR5 gene,533A>G (Asn178Ser). The child of Family Two, a 4-year-old girl, manifested hematuria. Her father, the proband of the family, was 36 years old, and manifested hematuria, proteinuria, high-frequency sensorineural deafness and renal insufficiency. He was diagnosed as IgAN according to clinical manifestations, renal pathology and routine immunohistochemistry without renal biopsy electron microscopy, renal tissue type Ⅳ collagen α3, α4, α5 chains immunofluorescence and skin type Ⅳ collagen α5 chain immunofluorescence. Genetic testing showed that the girl carried a heterozygous variant of the COL4A5 gene,566G>T (Gly189Val), and her father carried the hemizygous variant. The child of Family Three, a 7-year-old girl, manifested hematuria and proteinuria. Her mother, the proband of the family, was 34 years old, and manifested hematuria and proteinuria as well. The proband was diagnosed as IgAN by the same method used for Family Two. The girl's grandfather died of uremia at the age of 44. Genetic testing showed that the girl and her mother carried a heterozygous variant 539G>A (Gly180Glu)in COL4A5 gene. Conclusions: The variant of the CFHR5 gene identified in Family One is of uncertain signifance, and the two variants of the COL4A5 gene identified in Families Two and Three are pathogenic. The probands of Families Two and Three are diagnosed as Alport syndrome. The study suggests that clinicians should examine genetic variants of FH associated genes in families with hematuria when the probands were diagnosed as IgAN by their clinical manifestations, renal pathology and routine immunohistochemistry.
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Affiliation(s)
- J W Liu
- Department of Pediatrics, Fuzhou Clinical Medical College, Naval Medical University, Fuzhou 350025, China
| | - P Wang
- Department of Pediatrics, Fuzhou Clinical Medical College, Naval Medical University, Fuzhou 350025, China
| | - J Huang
- Department of Pediatrics, the 900th Hospital of Joint Logistic Support Force, the People's Liberation Army, Fuzhou 350025, China
| | - X J Nie
- Department of Pediatrics, the 900th Hospital of Joint Logistic Support Force, the People's Liberation Army, Fuzhou 350025, China
| | - F Zhao
- Department of Pediatrics, the 900th Hospital of Joint Logistic Support Force, the People's Liberation Army, Fuzhou 350025, China
| | - L Z Chen
- Department of Pediatrics, the 900th Hospital of Joint Logistic Support Force, the People's Liberation Army, Fuzhou 350025, China
| | - Z Li
- Department of Pediatrics, the 900th Hospital of Joint Logistic Support Force, the People's Liberation Army, Fuzhou 350025, China
| | - Z H Yu
- Department of Pediatrics, the 900th Hospital of Joint Logistic Support Force, the People's Liberation Army, Fuzhou 350025, China
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27
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Han Y, Liu JW, Chen Y, Zha DJ, Qiu JH. [Comparison of the treatment effect for stage Ⅰepitympanic cholesteatoma with atticotomy and Bondy modified radical mastoidectomy]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:537-541. [PMID: 31163530 DOI: 10.13201/j.issn.1001-1781.2019.06.015] [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] [Received: 01/22/2019] [Indexed: 11/12/2022]
Abstract
Objective:To compare the efficacy and safety between Bondy modified radical mastoidectomy (BMRM) and atticotomy for stage Ⅰ epitympanic cholesteatoma. Method:A retrospective analysis of 36 cases with stage Ⅰ epitympanic cholesteatoma was performed. According to different surgery methods, the cases were divided into the atticotomy group (21 cases) and the BMRM group (15 cases). Hearing function, the dry ear ratio after two months of the surgery, and the epithelial time were observed. The complications for the retraction of tympanic membrane, residual or recurrence of cholesteatoma, and otorrhea were analyzed. Result:There was no significant difference between the two groups in average air-bone gaps (ABG) and ABG gain before and after surgery (P>0.05). The preoperative hearing was preserved both in the atticotomy group and the BMRM group. However, more surgery time, lower ratio of the dry ear after two months of the surgery, and longer epithelial time were observed in the BMRM group than those in the atticotomy group(P<0.05). No cholesteatoma residual or recurrence was observed in both groups. Conclusion:For stage Ⅰ epitympanic cholesteatoma lateral to an intact ossicular chain, atticotomy has the advantage of complete removal of the cholesteatoma matrix, avoiding big mastoidal cavity, keeping normal anatomical structure of external auditory canal, better hearing preservation, and faster healing. Therefore, atticotomy has better clinical and practical value.
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Affiliation(s)
- Y Han
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - J W Liu
- Student Company No. 4, Air Force Medical University
| | - Y Chen
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - D J Zha
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
| | - J H Qiu
- Department of Otolaryngology, Xijing Hospital, Air Force Medical University, Xi'an, 710032, China
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Zhu ZC, Liu JW, Yang C, Zhao M, Xiong ZQ. XPO1 inhibitor KPT-330 synergizes with Bcl-xL inhibitor to induce cancer cell apoptosis by perturbing rRNA processing and Mcl-1 protein synthesis. Cell Death Dis 2019; 10:395. [PMID: 31113936 PMCID: PMC6529444 DOI: 10.1038/s41419-019-1627-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 04/02/2019] [Accepted: 04/08/2019] [Indexed: 01/19/2023]
Abstract
XPO1 (exportin1) mediates nuclear export of proteins and RNAs and is frequently overexpressed in cancers. In this study, we show that the orally bioavailable XPO1 inhibitor KPT-330 reduced Mcl-1 protein level, by which it synergized with Bcl-xL inhibitor A-1331852 to induce apoptosis in cancer cells. KPT-330/A-1331852 combination disrupted bindings of Mcl-1 and Bcl-xL to Bax, Bak, and/or Bim, elicited mitochondrial outer membrane permeabilization, and triggered apoptosis. KPT-330 generally mitigated mRNA expression and protein synthesis rather than mRNA nuclear export or protein stability of Mcl-1. KPT-330 inhibited mTORC1/4E-BP1 and Mnk1/eIF4E axes, which disrupted the eIF4F translation initiation complex but was dispensable for Mcl-1 reduction and KPT-330/A-1331852 combination-induced apoptosis. Mature rRNAs are integral components of the ribosome that determines protein synthesis ability. KPT-330 impeded nucleolar rRNA processing and reduced total levels of multiple mature rRNAs. Reconstitution of XPO1 by expressing degradation-resistant C528S mutant retained rRNA amount, Mcl-1 expression, and Bcl-xL inhibitor resistance upon KPT-330 treatment. KPT-330/A-1331852 combination suppressed growth and enhanced apoptosis of non-small cell lung cancer xenografts. Therefore, we clarify the reason of apoptosis resistance of cancer cells to XPO1 inhibition and develop a potential strategy for treating solid tumors.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Apoptosis/drug effects
- Benzothiazoles/pharmacology
- Benzothiazoles/therapeutic use
- Carcinoma, Non-Small-Cell Lung/drug therapy
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Cell Line, Tumor
- Down-Regulation/drug effects
- Drug Synergism
- Eukaryotic Initiation Factor-4F/metabolism
- Humans
- Hydrazines/pharmacology
- Hydrazines/therapeutic use
- Isoquinolines/pharmacology
- Isoquinolines/therapeutic use
- Karyopherins/antagonists & inhibitors
- Karyopherins/genetics
- Karyopherins/metabolism
- Lung Neoplasms/drug therapy
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Male
- Mechanistic Target of Rapamycin Complex 1/metabolism
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Myeloid Cell Leukemia Sequence 1 Protein/antagonists & inhibitors
- Myeloid Cell Leukemia Sequence 1 Protein/genetics
- Myeloid Cell Leukemia Sequence 1 Protein/metabolism
- RNA, Ribosomal/metabolism
- Receptors, Cytoplasmic and Nuclear/antagonists & inhibitors
- Receptors, Cytoplasmic and Nuclear/genetics
- Receptors, Cytoplasmic and Nuclear/metabolism
- Triazoles/pharmacology
- Triazoles/therapeutic use
- Exportin 1 Protein
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Affiliation(s)
- Zhi-Chuan Zhu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
| | - Ji-Wei Liu
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Can Yang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Miao Zhao
- Department of Neurology and Institute of Neurology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Zhi-Qi Xiong
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, Shanghai, China.
- University of Chinese Academy of Sciences, Beijing, China.
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China.
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29
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Affiliation(s)
- Ying Liu
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
| | - Yan-Li Zhang
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
| | - Ji-Wei Liu
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
| | - Feng-Qi Fang
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
| | - Jian-Ming Li
- Cardiovascular Division, University of Minnesota, Minneapolis, MN 55417, USA
| | - Yun-Long Xia
- Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, China
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30
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Guo YL, Tong ZH, Xu X, Zhao Y, Liu JW, Wang HG, Dong GL. [Colorectal resection combined with simultaneous radiofrequency ablation in the treatment of synchronous colorectal liver metastases: a retrospective analysis]. Zhonghua Yi Xue Za Zhi 2018; 97:925-928. [PMID: 28355754 DOI: 10.3760/cma.j.issn.0376-2491.2017.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 compare the efficacy and safety of colorectal resection combined with simultaneous radiofrequency ablation (RFA) in the treatment of synchronous colorectal liver metastases(SCRLM). Methods: This retrospective study involved the patients admitted between January 1st 2010 and September 1st 2013. A total of 20 patients who underwent colorectal resection combined with simultaneous RFA of SCRLM were enrolled. Those patients (RFA group) were matched with 20 patients (Resection group) who underwent simultaneous resections of colorectal cancer and SCRLM based on the propensity scores. Perioperative parameters and survival outcomes were compared between the two groups. Results: The RFA and Resection groups were comparable in demographics, cancer characteristics and chemotherapy treatment (all P>0.05). The estimated blood loss and intraoperative blood transfusions in the RFA group were significantly lower than those in the resection group [150.00(100.00-200.00) vs 200.00(112.50-650.00), 1 vs 7, all P>0.05]. The postoperative stay in the RFA group was significantly shorter than that in laparoscopic group [8.50(8.00-10.75) vs 11.00(8.25-14.25), P=0.043]. There was no significant difference in postoperative complications (P>0.05). The 3-year disease free survival rate was 14.00% in the RFA group, and 31.20% in the Resection group (P=0.047). However, the 3-year overall rates were similar between the two groups (P>0.05). Conclusions: Compared with simultaneous resections of colorectal cancer and SCRLM resections, colorectal resection combined with simultaneous RFA of SCRLM was associated with less surgical blood loss and shorter hospitalization. Although inferior to simultaneous resections of colorectal cancer and SCRLM resections in survival outcomes, this approach extends the capability of delivering potentially curative treatment for colorectal cancer patients with unresectable SCRLM.
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Affiliation(s)
- Y L Guo
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
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31
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Zhu ZC, Liu JW, Li K, Zheng J, Xiong ZQ. KPNB1 inhibition disrupts proteostasis and triggers unfolded protein response-mediated apoptosis in glioblastoma cells. Oncogene 2018; 37:2936-2952. [PMID: 29520102 PMCID: PMC5978811 DOI: 10.1038/s41388-018-0180-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 11/28/2017] [Accepted: 02/02/2018] [Indexed: 12/29/2022]
Abstract
The nuclear import receptor karyopherin β1 (KPNB1) is involved in the nuclear import of most proteins and in the regulation of multiple mitotic events. Upregulation of KPNB1 has been observed in cancers including glioblastoma. Depletion of KPNB1 induces mitotic arrest and apoptosis in cancer cells, but the underlying mechanism is not clearly elucidated. Here, we found that downregulation and functional inhibition of KPNB1 in glioblastoma cells induced growth arrest and apoptosis without apparent mitotic arrest. KPNB1 inhibition upregulated Puma and Noxa and freed Mcl-1-sequestered Bax and Bak, leading to mitochondrial outer membrane permeabilization (MOMP) and apoptosis. Moreover, combination of Bcl-xL inhibitors and KPNB1 inhibition enhanced apoptosis in glioblastoma cells. KPNB1 inhibition promoted cytosolic retention of its cargo and impaired cellular proteostasis, resulting in elevated polyubiquitination, formation of aggresome-like-induced structure (ALIS), and unfolded protein response (UPR). Ubiquitination elevation and UPR activation in KPNB1-deficient cells were reversed by KPNB1 overexpression or inhibitors of protein synthesis but aggravated by inhibitors of autophagy-lysosome or proteasome, indicating that rebalance of cytosolic/nuclear protein distribution and alleviation of protein overload favor proteostasis and cell survival. Chronic activation of eIF2α/ATF4 cascade of UPR was responsible for the upregulation of Puma and Noxa, apoptosis and ABT-263 sensitivity. Taken together, our findings demonstrate that KPNB1 is required for proteostasis maintenance and its inhibition induces apoptosis in glioblastoma cells through UPR-mediated deregulation of Bcl-2 family members.
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Affiliation(s)
- Zhi-Chuan Zhu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Ji-Wei Liu
- School of Pharmacy, East China University of Science and Technology, 200237, Shanghai, China
| | - Kui Li
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 200031, Shanghai, China
| | - Jing Zheng
- School of Pharmacy, East China University of Science and Technology, 200237, Shanghai, China
| | - Zhi-Qi Xiong
- Institute of Neuroscience, State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Chinese Academy of Sciences, 200031, Shanghai, China.
- University of Chinese Academy of Sciences, 100049, Beijing, China.
- School of Life Science and Technology, ShanghaiTech University, 201210, Shanghai, China.
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Wang HY, Liu JW, Li Q, Tan LS, Lin L, Pan YP. [A preliminary study on the effect of histatin 5 inhibiting Porphyromonas gingivalis and Fusobacterium nucleatum co-aggregation]. Zhonghua Kou Qiang Yi Xue Za Zhi 2018; 53:150-156. [PMID: 29972970 DOI: 10.3760/cma.j.issn.1002-0098.2018.03.002] [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 detect the inhibitory ability of histatin 5 on the auto-aggregation of Porphyromonas gingivalis (Pg), and the co-aggregation of Pg with Fusobacterium nucleatum (Fn); and to provide a theoretical basis for the role of oral innate immunity played in the inhibition of chronic periodontitis. Methods: Saliva and supragingival, subgingival plaque samples were collected from 49 chronic periodontitis patients in School of Stomatology, China Medical University and 27 periodontal healthy individuals. Enzyme linked immunosorbent assay was used to assess the amount of histatin 5 in saliva, absolute quantitative real-time PCR (qPCR) was applied to detect the DNA copies of Fn, Pg and total bacteria in supragingival and subgingival plaque samples. The effects of histatin 5 on auto- and co-aggregation were assessed by bacterial adhesion test and scanning electron microscopy. Hemagglutinin gene, arginine-gingipains gene in Pg and FomA gene in Fn were tested by relative qPCR. Independent samples t-test was used to calculate the significance between the experimental group and the control group. P-value<0.05 was considered statistically significant. Results: For chronic periodontitis patients, there was an inverse correlation between the concentration of histatin 5 and Fn and Pg in supragingival plaque samples (r=-0.379, r=-0.624). Similarly, an inverse correlation was also observed between the concentration of histatin 5 and subgingival Fn and Pg, respectively (r=-0.404, r=-0.314). As for periodontally healthy individuals, there was an inverse correlation between the concentration of histatin 5 and supragingival and subgingival Pg (r=-0.572, r=-0.533). Bacterial adhesion test and scanning electron microscopy certified that 25 mg/L histatin 5 inhibited the auto-aggregation of Pg-Pg and the co-aggregation of Pg-Fn. Results of qPCR showed that 25 mg/L histatin 5 up-regulated hemagglutinin gene by (14.52±3.25) fold and down-regulated FomA gene to (0.22±0.10) fold. Conclusions: Histatin 5 could inhibit the auto-aggregation of Pg-Pg and the co-aggregation of Pg-Fn by regulating hemagglutinin gene and FomA gene expression.
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Affiliation(s)
- H Y Wang
- Department of Periodontics, School of Stomatology, China Medical University & Liaoning Institute of Dental Research, Shenyang 110002, China
| | - J W Liu
- Department of Periodontics, School of Stomatology, China Medical University & Liaoning Institute of Dental Research, Shenyang 110002, China
| | - Q Li
- Department of Oral Biology, School of Stomatology, China Medical University & Liaoning Institute of Dental Research, Shenyang 110002, China
| | - L S Tan
- Department of Periodontics, School of Stomatology, China Medical University & Liaoning Institute of Dental Research, Shenyang 110002, China
| | - L Lin
- Department of Periodontics, School of Stomatology, China Medical University & Liaoning Institute of Dental Research, Shenyang 110002, China
| | - Y P Pan
- Department of Periodontics, School of Stomatology, China Medical University & Liaoning Institute of Dental Research, Shenyang 110002, China
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Tan GH, Liu YY, Wang L, Li K, Zhang ZQ, Li HF, Yang ZF, Li Y, Li D, Wu MY, Yu CL, Long JJ, Chen RC, Li LX, Yin LP, Liu JW, Cheng XW, Shen Q, Shu YS, Sakimura K, Liao LJ, Wu ZY, Xiong ZQ. PRRT2 deficiency induces paroxysmal kinesigenic dyskinesia by regulating synaptic transmission in cerebellum. Cell Res 2017; 28:90-110. [PMID: 29056747 PMCID: PMC5752836 DOI: 10.1038/cr.2017.128] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [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: 05/08/2017] [Revised: 06/28/2017] [Accepted: 07/26/2017] [Indexed: 01/22/2023] Open
Abstract
Mutations in the proline-rich transmembrane protein 2 (PRRT2) are associated with paroxysmal kinesigenic dyskinesia (PKD) and several other paroxysmal neurological diseases, but the PRRT2 function and pathogenic mechanisms remain largely obscure. Here we show that PRRT2 is a presynaptic protein that interacts with components of the SNARE complex and downregulates its formation. Loss-of-function mutant mice showed PKD-like phenotypes triggered by generalized seizures, hyperthermia, or optogenetic stimulation of the cerebellum. Mutant mice with specific PRRT2 deletion in cerebellar granule cells (GCs) recapitulate the behavioral phenotypes seen in Prrt2-null mice. Furthermore, recording made in cerebellar slices showed that optogenetic stimulation of GCs results in transient elevation followed by suppression of Purkinje cell firing. The anticonvulsant drug carbamazepine used in PKD treatment also relieved PKD-like behaviors in mutant mice. Together, our findings identify PRRT2 as a novel regulator of the SNARE complex and provide a circuit mechanism underlying the PRRT2-related behaviors.
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Affiliation(s)
- Guo-He Tan
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.,Department of Human Anatomy, Guangxi Key Laboratory of Regenerative Medicine & Guangxi Collaborative Innovation Center of Biomedicine, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Yuan-Yuan Liu
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Lu Wang
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Kui Li
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ze-Qiang Zhang
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hong-Fu Li
- Department of Neurology and Research Center of Neurology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Zhong-Fei Yang
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yang Li
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Dan Li
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ming-Yue Wu
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Chun-Lei Yu
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Juan-Juan Long
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ren-Chao Chen
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Li-Xi Li
- Department of Neurology and Research Center of Neurology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Lu-Ping Yin
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Ji-Wei Liu
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Xue-Wen Cheng
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Qi Shen
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - You-Sheng Shu
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
| | - Kenji Sakimura
- Department of Cellular Neurobiology, Brain Research Institute, Niigata University, Niigata 951-8585, Japan
| | - Lu-Jian Liao
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Zhi-Ying Wu
- Department of Neurology and Research Center of Neurology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, China
| | - Zhi-Qi Xiong
- Institute of Neuroscience and State Key Laboratory of Neuroscience, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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Liu JW, Lu X, Yang ZM, Deng LJ, Yang L. [Immune effects of specific CTLs response induced by dendritic cells pulsed with NY-ESO-1 peptide]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:840-846. [PMID: 29045966] [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: 06/07/2023]
Abstract
OBJECTIVE To explore the potential of autologous dendritic cells (DCs) pulsed with caner/testis antigen NY-ESO-1 peptides in inducing specific cytotoxic T lymphocyte (CTLs) response and antineoplastic immune function of specific CTLs. METHODS Fifteen patients with II to III stage positive HLA -A0201+ and NY-ESO-1+ were enrolled in the Cancer Hospital Chinese Academy of Medical Sciences on the basis of preclinical experiments from November 2014 to October 2015, and their peripheral blood mononuclear cells (PBMCs) and peripheral blood lymphocytes (PBLs) were isolated. The PBMCs were induced into DCs and pulsed with NY-ESO-1 peptide. The phenotypes of DCs were stained with antibodies against HLA-DR+CD11c+,CD80+,CD83+ and CD86+, and subsequently analyzed by multichannel flow cytometry (FCM). The killing effects of CTLs pulsed with HLA-A0201-binding peptide NY-ESO-1 and the potential of autologous DCs pulsed with NY-ESO-1 peptides in inducing specific cytotoxic T lymphocytes (CTLs) responses were determined. The patients were administered two infusions of auto-logous CTLs for 1 time every two weeks. The total infusion was with 2 times. The immunological responses and clinical responses were examined in 1 week after the final administration. RESULTS The immunophenotype of DCs pulsed with NY-ESO-1 peptide was analyzed, HLA-DR+CD11c+ cells (93.6%±1.2%), CD80+ cells (87.3%±3.6%), CD83+ cells (82.8%±2.5%) and CD86+ cells (93.4%±6.4%). PBLs isolated from patients primed by DCs pulsed with NY-ESO-1 peptide proliferated continuously and the proliferation index (PI) of the PBLs were analyzed. There was significant difference between the DCs loaded with polypeptides and those unloaded, though it could promote the proliferation of PBLs, but the PI was significantly lower than that of the DCs loaded with NY-ESO-1 peptide (P<0.05). The average percentage of special CTLs primed by DCs pulsed with NY-ESO-1 peptides was significantly higher than that in the control group (5.2%±1.2% vs. 0.4%±0.1%). CTLs induced by NY-ESO-1 pulsed DCs exerted a stronger killing effect on T2 cell line pulsed with NY-ESO-1 peptide than that in the control group at the ratio of E (effect) to T (target) as 30:1, P<0.05. The cytokine levels in the patients'sera such as IFN-γ, IL-2 and IL-12 were increased after treatments [(132.9±10.2) μg/L vs. (46.4±3.1) μg/L; (101.3±6.4) μg/L vs. (26.7±1.2) μg/L; (51.3±2.6) μg/L vs. (26.4±1.1) μg/L; all P<0.05], and the percentages of antigen-specific CD8+IFN-γ+ increased in these patients (P<0.01). CONCLUSION Auto-DCs pulsed with NY-ESO-1 peptides can induce the proliferation of allogenic CTLs, which elicit specific immune responses ex vivo or in vivo, and boost anticancer immunity markedly.
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Affiliation(s)
- J W Liu
- Beijing Biohealthcare Biotechnology Co. Ltd, Beijing 101318, China
| | - X Lu
- Beijing Biohealthcare Biotechnology Co. Ltd, Beijing 101318, China
| | - Z M Yang
- Beijing Biohealthcare Biotechnology Co. Ltd, Beijing 101318, China
| | - L J Deng
- Beijing Biohealthcare Biotechnology Co. Ltd, Beijing 101318, China
| | - L Yang
- National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Abstract
OBJECTIVE To investigate the influence of job burnout on sleep quality of oilfield workers. METHODS In January to August, 2014, the Chinese Maslach Burnout Inventory(CMBI) and Pittsburgh Sleep Quality Index(PSQI) were used to conduct investigation on job burnout and sleep quality in 1180 oilfield workers. RESULTS The scores on each subscale of CMBI showed significant differences between workers with different characteristics(marital status, working years, educational background, and type of work) (P<0.05). The global PSQI score for oilfield workers was 5.55±3.26, which was significantly higher than the national norm(3.88±2.52) (P<0.05), and the incidence of issues related to sleep quality was 32.54%. The PSQI score showed significant differences between workers with different characteristics(sex and working years)(P<0.05). The multivariate logistic regression analysis showed that working years, sex, emotional exhaustion, and depersonalization were the major factors affecting sleep quality, and the workers with long working years, male workers with job burnout, and oilfield workers with issues related to sleep quality tend to have a high incidence of issues related to sleep quality. CONCLUSION Job burnout is the major factor influencing the sleep quality of oilfield workers, and reducing job burnout of such workers is an effective way to improve sleep quality.
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Affiliation(s)
- Y Jiang
- Department of Public Health, Xinjiang Medical University, Urumqi 830054, China
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Liu JW, Zhu ZC, Li K, Wang HT, Xiong ZQ, Zheng J. UMI-77 primes glioma cells for TRAIL-induced apoptosis by unsequestering Bim and Bak from Mcl-1. Mol Cell Biochem 2017; 432:55-65. [DOI: 10.1007/s11010-017-2997-x] [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] [Received: 10/13/2016] [Accepted: 03/04/2017] [Indexed: 01/09/2023]
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Zhang JJ, Jia JM, Tao N, Song ZX, Ge H, Jiang Y, Tian H, Qiu EC, Tang JH, Liu JW. [Mediator effect analysis of the trait coping style on job stress and fatigue of the military personnel stationed in plateau and high cold region]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:176-180. [PMID: 28511300 DOI: 10.3760/cma.j.issn.1001-9391.2017.03.004] [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 investigate the fatigue status of military personnel stationed in plateau and high cold region, and to analyze the mediator effect of trait coping style on job stress and fatigue. Methods: In October 2010, with the method of cluster random sampling survey, 531 military personnel stationed in plateau and high cold region were chosen as subject. The fatigue status were evaluated by the Chinese version multidimensional fatigue inventory (MFI-20) , job stress were evaluated by the Job Stress Survey (JSS) , and trait coping style were evaluated by the Trait Coping Style Questionnaire (TCSQ) . Results: According to the information of different population characteristics, mean rank of physical fatigue about the urban (town) group were higher than that of rural group (Z=-2.200, P<0.05) ; mean rank of reduced motivation about the urban (town) group were higher than that of rural group (Z=-2.781, P<0.05) ; mean rank of general fatigue scores about the urban (town) group were higher than that of rural group (Z=-3.026, P<0.05) ; mean rank of physical fatigue about the up or equal 20-years old age group were higher than that of below 20-years old age group (Z=-4.045, P<0.05) ; mean rank of reduced motivation about the up or equal 20-years old age group were higher than that of below 20-years old age group (Z=-2.182, P<0.05) ; mean rank of mental fatigue about the up or equal 20-years old age group were higher than that of below 20-years old age group (Z=-2.879, P<0.05) ; mean rank of general fatigue scores about the up or equal 20-years old age group were higher than that of below 20-years old age group (Z=-3.647, P<0.05) ; mean rank of reduced motivation were significant statistical difference among the military officers, sergeancy and soldier group (F=18.965, P<0.05) ; mean rank of general fatigue scores were significant statistical difference among the military officers, sergeancy and soldier group (F=14.711, P<0.05) . The score of negative coping style were positively correlated with the score of physical fatigue (r(s)=0.129) , reduced activity (r(s)=0.123) , reduced motivation (r(s)=0.149) and general fatigue (r(s)=0.174) respectively, the score of organizational support lack strength were positively correlated with the score of physical fatigue (r(s)=0.090) , reduced activity (r(s)=0.098) , reduced motivation (r(s)=0.099) and general fatigue (r(s)=0.130) respectively. The mediator effect of negative coping style on the job stress and fatigue was 0.013 (P<0.01) . Conclusion: The fatigue statuses of the urban (town) group and the up or equal 20-years old age group are poor, and the negative coping style plays mediator effect on the job stress and fatigue.
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Affiliation(s)
- J J Zhang
- Department of Occupational and Environmental Health, School of Public Health, Xinjiang Medical University, Urumqi 830011, China
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Yang LQ, Sun XC, Qin SK, Chen YX, Zhang HL, Cheng Y, Chen ZD, Shi JH, Wu Q, Bai YX, Han BH, Liu W, Ouyang XN, Liu JW, Zhang ZH, Li YQ, Xu JM, Yu SY. Transdermal granisetron for the prevention of nausea and vomiting following moderately or highly emetogenic chemotherapy in Chinese patients: a randomized, double-blind, phase III study. Chin Clin Oncol 2016; 5:79. [DOI: 10.21037/cco.2016.12.04] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 12/11/2016] [Indexed: 11/06/2022]
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Jin DH, Du SF, Chen BY, Liu JW, Fu ZX, Wang HJ. [Changes on patterns of sleep duration: findings from China Health and Nutrition Survey in population in 9 provinces]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:1366-1369. [PMID: 27765127 DOI: 10.3760/cma.j.issn.0254-6450.2016.10.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the changes on patterns of sleep duration of the China Health and Nutrition Survey (CHNS) cohort in 9 provinces from 2004 to 2011. Methods: Four rounds of CHNS data were used. Urban/rural, age and gender specific insufficient sleeping rates and excessive sleeping rates were analyzed. Results: In 2004, 2006, 2009 and 2011, a total of 274, 281, 329 and 304 children aged 3-5 years; 874, 806, 768 and 742 children aged 6-12 years; 789, 529, 426 and 367 children aged 13-17 years; 9 568, 9 530, 9 942 and 9 609 adults aged ≥18 years were surveyed respectively. The lowest insufficient sleeping rate was 53.9% (200/371) in 3-17 years old children in rural area in 2006, the highest insufficient sleeping rate was 77.2% (44/57) in 3-5 years old children in urban area in 2004. The insufficient sleeping rate increased in rural 3-5 years old children from 2004 to 2011. For the adults aged ≥18 years, the insufficient sleeping rate ranged from 4.2% (82/1 954) in females aged 18-44 years in 2004 and 2009 to 20.8% (211/1 015) in urban residents aged > 60 years in 2011. The insufficient sleeping rate in age-groups 44-59 years and ≥60 years increased in both males and females and in both urban area and rural area from 2004 to 2011. The gender specific excessive sleeping rate in 3-17 years old children was very low in both urban area and rural area and no difference was found in different rounds of survey. The excessive sleeping rate in adults ranged from 18.4% (569/3 093) in urban population in 2011 to 32.5% (1 617/4 969) in females in 2004. The excessive sleeping rate of adult decreased from 2004 to 2011. Conclusion: We should pay attention to the fact that the insufficient sleeping rate in adolescents is high and in increase in rural 3-5 years old children and adults aged ≥45 years.
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Affiliation(s)
- D H Jin
- Department of Chronic Disease, Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - S F Du
- the University of North Carolina at Chapel Hill, Chapel Hill 27516-2524, NC, USA
| | - B Y Chen
- Department of Chronic Disease, Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - J W Liu
- Department of Chronic Disease, Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - Z X Fu
- Department of Chronic Disease, Hunan Provincial Center for Disease Control and Prevention, Changsha 410005, China
| | - H J Wang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Zhang JJ, Tao N, Jia JM, Qin X, Tian H, Qiu EC, Liu JW. [Effects of job content on psychological stress in young recruits]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:246-9. [PMID: 27514254 DOI: 10.3760/cma.j.issn.1001-9391.2016.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the effects of job content on psychological stress in young recruits. METHODS In October 2014, 625 young recruits enrolled in one troop of Xinjiang Military Command in 2014 were chosen as subjects by multi-stage stratified random sampling. The Chinese version of the job content questionnaire (JCQ)and the psychological stress self evaluation test (PEST)were used to investigate the subjects. The subjects were divided into two groups with scores higher and lower than the mean score of three subscales (job requirement, degree of autonomy, and social support)of JCQ to explore the effects of job content on psychological stress in young recruits. The correlation of psychological stress with three subscales of job content was evaluated using the Pearson' s correlation analysis. Binary logistic regression analysis was used to analyze the influencing factors for psychological stress. RESULTS The PEST score of young recruits was 49.98±9.98. Forty-five (7.68%)out of them had scores of ≥70 points and were diagnosed with high levels of psychological stress. When the subjects were grouped based on socio-demographic characteristics, a high level of psychological stress was significantly more frequent in subjects less than 20 years of age than in those not less than 20 years of age, in smoking subjects than in non-smoking subjects, and in urban residents than in rural residents (10.42% vs 5.03%, P<0.05; 10.14% vs 5.33%, P<0.05; 10.85% vs 5.88% , P <0.05). There were no significant differences in educational level or identity before recruitment between subjects with different levels of psychological stress (P>0.05). In various job content domains that had impacts on psychological stress, subjects with a low score of social support had significantly higher PEST scores than those with a high score of social support (50.96±10.35 vs 48.49±9.22, P<0.01). The PEST score was negatively correlated with the degree of autonomy and social support (r=-0.103, P<0.05; r=-0.239, P<0.05). The results of logistic regression analysis showed that job requirement and social support were influencing factors for psychological stress (OR=0.718, 95% CI= 0.718 (0.607~0.851), P<0.05; OR=1.185, 95% CI=1.185 (1.087~1.292), P<0.05). CONCLUSION Psychological stress of young recruits in army is not optimistic. Psychological stress is weakly negatively correlated with social support. The low scores on job requirement subscale and social support subscale may be potential protective factor and risk factor for psychological stress, respectively.
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Affiliation(s)
- J J Zhang
- Department of Occupational and Environmental Health, School of Public Health, Xinjiang Medical University, Urumqi 830011, China
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Abstract
To investigate the protective mechanism of quercetin on acute myocardial infarction (AMI) rats, an AMI rat model was established by ligating the left coronary anterior descending branch. The rats were randomly divided into the model group and low- and high-dose quercetin groups. The control group comprised sham-operated rats. The rats in the low- and high-dose quercetin groups were administered 100 and 400 mg/kg quercetin, respectively, by gavage. The rats in the control and model groups were administered isometric normal saline once daily for one week. The mRNA and protein levels of TNF-α and IL-1β in the myocardial tissue of rats were detected in each group by real time polymerase chain reaction and enzyme-linked immunosorbent assay. Malondialdehyde (MDA) content in the myocardial tissue and superoxide dismutase (SOD) and catalase (CAT) activities were detected using a colorimetric method. The level of apoptosis was detected by terminal deoxynucleotidyl transferase dUTP nick end labeling. Compared with those in the control group, the mRNA and protein levels of TNF-α, IL-1β and MDA content in the model, low-, and high-dose groups significantly increased. SOD and CAT activities decreased significantly. The cell apoptosis index increased significantly (P < 0.05). Compared with those in the model group, the mRNA and protein levels of TNF-α and IL-1β and MDA content in myocardial tissue of rats in the low-dose and high-dose groups decreased significantly. SOD and CAT activities increased significantly. The cell apoptosis index significantly reduced (P < 0.05). In conclusion, quercetin has significant anti-inflammatory, antioxidant, and anti-apoptotic effects on AMI rats and can effectively protect against myocardium damage.
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Affiliation(s)
- B Li
- Department of Cardiology II, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - M Yang
- Department of Cardiology I, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - J W Liu
- Department of Cardiology II, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
| | - G T Yin
- Department of Cardiology II, The Third Affiliated Hospital of Xinxiang Medical University, Xinxiang, China
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Li B, Yang M, Liu JW. Expression of STK39 in peripheral blood of hypertension patients and the relationship between its genetic polymorphism and blood pressure. Genet Mol Res 2015; 14:16461-8. [PMID: 26662444 DOI: 10.4238/2015.december.9.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study investigated the STK39 expression in peripheral blood of hypertension patients and the relation between its genetic polymorphism and blood pressure. The observation group comprised of 42 primary hypertension patients admitted to our hospital, and the control group comprised of 30 healthy individuals who underwent physical examination in our hospital during the same period. Fasting venous blood was collected from both groups in the morning to determine the STK39 mRNA and protein levels in peripheral blood using quantitative real-time PCR and western blot. STK39 gene SNP (rs6433027) was sequenced using PCR and its genetic variation was analyzed. The relationship between STK39 protein level, genetic variation, and diastolic and systolic blood pressure was also analyzed. The observation group showed increased STK39 mRNA and protein levels in peripheral blood compared to the control group, and the difference was statistically significant (P < 0.05), suggesting C/T mutation in STK39 gene SNP (rs6433027). Correlation analysis showed positive association between STK39 protein level and diastolic and systolic blood pressure (P < 0.05), indicating a positive association between C/T genetic mutation and diastolic and systolic blood pressure (P < 0.05). In conclusion, STK39 mRNA and protein express abnormally in primary hypertension patients with genetic variation, which is related to the blood pressure.
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Affiliation(s)
- B Li
- Department of Cardiology II, The Third Affiliated Hospital of Xinxiang Medical University, Xingxiang, China
| | - M Yang
- Department of Cardiology I, The Third Affiliated Hospital of Xinxiang Medical University, Xingxiang, China
| | - J W Liu
- Department of Cardiology II, The Third Affiliated Hospital of Xinxiang Medical University, Xingxiang, China
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Li DM, Zhao CY, Liu XR, Liu XF, Lin YJ, Liu JW, Chen HM, L FB. De novo assembly and characterization of the root transcriptome and development of simple sequence repeat markers in Paphiopedilum concolor. Genet Mol Res 2015; 14:6189-201. [PMID: 26125820 DOI: 10.4238/2015.june.9.5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Paphiopedilum orchids (Orchidaceae) have attracted much attention from botanists and horticulturists because of their peculiar leaves and beautiful flowers. Furthermore, the dry roots of Paphiopedilum plants have well-known medicinal uses. However, it is unknown how sensitive and plastic the root genes are to environmental changes or how these environmental changes regulate the biosynthesis of active ingredients. In this study, we chose Paphiopedilum concolor for root sequencing, as it is widely used as a parent in breeding experiments. A total of 3.77 Gb of sequence data were generated by Illumina paired-end sequencing. De novo assemblies yielded 72,952 contigs, 67,434 scaffolds, 64,304 unigenes with average lengths of 937, 1022, and 1047 bp, respectively. Based on Basic Local Alignment Search Tool with known protein sequences, 40,815 (63.5%) unigenes were annotated with an E-value cutoff of 1.0E-5. Among the unigenes, 24,605 were classified in the Gene Ontology database, 17,361 were assigned to Cluster of Orthologous Groups, and 14,170 were annotated in Kyoto Encyclopedia of Genes and Genomes. Among these annotations, over 1195 unigenes related to secondary metabolic pathways, as well as 609 unigenes involved in plant hormone synthesis and signal transduction, were identified. In addition, 5322 potential simple sequence repeats (SSRs) were identified, and 4989 primer pairs for 3975 sequences containing SSRs were obtained. This study provides valuable insights into the mechanisms of genes that regulate root growth and development and provides a comprehensive resource for genes related to secondary metabolism in roots and for marker-assisted studies in Paphiopedilum.
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Affiliation(s)
- D M Li
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - C Y Zhao
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - X R Liu
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - X F Liu
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Y J Lin
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - J W Liu
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - H M Chen
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - F B L
- Guangdong Key Laboratory of Ornamental Plant Germplasm Innovation and Utilization, Environmental Horticulture Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
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Yao D, Liu ZZ, Zhang J, Liu SY, Qu J, Guan SY, Pan LD, Wang D, Liu JW, Wang PW. Analysis of quantitative trait loci for main plant traits in soybean. Genet Mol Res 2015; 14:6101-9. [PMID: 26125811 DOI: 10.4238/2015.june.8.8] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Plant traits are important indices for regulating and controlling yield ability in soybean varieties. It is important to comprehensively study the quantitative trait locus (QTL) mapping for soybean plant traits, cloning related genes, and marker assistant breeding. In this study, 236 F2 generation plants and a derivative group were constructed by using Jiyu50 and Jinong18, obtained from Jilin Province. A total of 102 simple sequence repeat markers were used to construct a genetic linkage map. With 2 years of molecular and phenotypic data, QTL analyses and mapping were conducted for soybean maturity, plant height, main stem node, main stem branch, seed weight per plant, and more. Five main plant traits were analyzed via inclusive composite interval mapping using QTL IciMapping v2.2. Using one-dimensional scanning, a total of 30 QTLs were detected and distributed across 1 (A1), 4 (C2), and 12 (G). There were 9 linkage groups, including 16 major QTLs. Using two-dimensional scanning, 7 pairs of epistatic QTL interactions for maturity and plant height were detected in the soybean.
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Affiliation(s)
- D Yao
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - Z Z Liu
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - J Zhang
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - S Y Liu
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - J Qu
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - S Y Guan
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - L D Pan
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - D Wang
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - J W Liu
- Biotechnology Center, Jilin Agricultural University, Changchun, China
| | - P W Wang
- Biotechnology Center, Jilin Agricultural University, Changchun, China
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Dong Y, Liu JW, Gao YJ, Zhou T, Chen YM. Relationship between DNA repair gene XPD751 single-nucleotide polymorphisms and prognosis of colorectal cancer. Genet Mol Res 2015; 14:5390-8. [PMID: 26125734 DOI: 10.4238/2015.may.22.8] [Citation(s) in RCA: 8] [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] [Indexed: 12/14/2022]
Abstract
We examined the relationships between single-nucleotide polymorphisms (SNPs) in the DNA repair gene XPD751 and the efficacy and time to disease progression (TTP) in colorectal cancer patients after platinum-based chemotherapy. Ninety-eight patients diagnosed with advanced colorectal cancer were subjected to oxaliplatin and 5-fluorouracil combination therapy. DNA was extracted from venous blood before chemotherapy. Polymerase chain reaction-restriction fragment length polymorphism analysis was used to detect XPD751 SNPs. The relationship between genotypes and prognosis was compared. The frequencies of the XPD751 Lys/Lys, Lys/Gln, and Gln/Gln genotypes were 76 (77.55%), 17 (17.35%), and 5 (5.10%), respectively. The efficiency of XPD751 Lys/Lys, Lys/Gln and Gln/Gln genotypes were 50.00, 29.41, and 20%, respectively. The efficiency rate between XPD751 Lys/Lys and Lys/Gln showed a significant difference (c² = 4.04, P < 0.05). After adjusting for gender, age, and metastasis location, chemotherapy failure in patients carrying XPD751 Lys/Gln was 3.404-fold higher than in patients carrying the Lys/Lys genotype. Median TTP was 304 days (10.1 months) and median TTP in patients with XPD751 Lys/Lys and ≥1 Gln genotype was 340 and 87 days. After comparing TTP in patients carrying Lys/Lys and patients carrying ≥1 Gln, the difference was significant. SNPs in the DNA repair gene XPD751 may be associated with oxaliplatin and 5-fluorouracil chemotherapy sensitivity in colorectal cancer patients. These polymorphisms may be associated with TTP in patients with advanced colorectal cancer after first-line chemotherapy of oxaliplatin. XPD751 SNPs may be predictive factors of prognosis in colorectal cancer patients receiving oxaliplatin and 5-fluorouracil chemotherapy.
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Affiliation(s)
- Y Dong
- First Affiliated Hospital of Medical University, Dalian, China
| | - J W Liu
- First Affiliated Hospital of Medical University, Dalian, China
| | - Y J Gao
- First Affiliated Hospital of Medical University, Dalian, China
| | - T Zhou
- First Affiliated Hospital of Medical University, Dalian, China
| | - Y M Chen
- First Affiliated Hospital of Medical University, Dalian, China
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Abstract
We examined expression differences in breast cancer stem cells (BCSCs) of the doxorubicin-resistant breast cancer cell line MCF-7/ADM and doxorubicin-sensitive cell line MCF-7/S. The effects of Chinese medicine β-elemene on BCSCs and resistance protein expression were determined. The serum-free cell culture method was used for cell culture, and morphology was observed to determine the rate of cell sphere formation. Reverse transcription-polymerase chain reaction was used to detect breast cancer resistance protein (BCRP) and P-glycoprotein (P-gp) gene expression. Flow cytometry was used to determine BCRP- and P-gp-positive cell rates and CD44 + CD24-/low cell ratios. Morphological observation and gene amplification showed that compared with MCF-7/S cells, the serum-free cell sphere-forming rate and P-gp and BCRP gene expression levels were higher in MCF-7/ADM cells. Flow cytometry results showed that P-gp and BCRP protein expression in MCF-7/ADM cells was 77.78 ± 9.55% and 32.33 ± 5.12%, respectively, and the CD44 + CD24-/low cell rate was 64.79 ± 11.78%, which were all significantly higher than those in MCF-7/S cells (3.97 ± 1.51, 14.26 ± 2.51, 18.79 ± 3.28%; P < 0.05). β-elemene significantly decreased the serum-free cell sphere-forming rate in MCF-7/ADM cells and BCRP and P-gp gene/protein expression (P < 0.01). The proportion of CD44 + CD24-/low cells was reduced. MCF-7/ADM highly expressed the drug-resistant proteins BCRP and P-gp, which can be used for long-term in vitro culture and as a seed cell for studies of BCSCs. β-elemene can inhibit BCSC and the sphere-forming rate in MCF-7/ADM cells and reduce BCRP expression.
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Affiliation(s)
- Y Dong
- First Affiliated Hospital of Medical University, Dalian, China
| | - L Li
- First Affiliated Hospital of Medical University, Dalian, China
| | - L Wang
- First Affiliated Hospital of Medical University, Dalian, China
| | - T Zhou
- First Affiliated Hospital of Medical University, Dalian, China
| | - J W Liu
- First Affiliated Hospital of Medical University, Dalian, China
| | - Y J Gao
- First Affiliated Hospital of Medical University, Dalian, China
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Liu Y, Ban LY, Su X, Gao S, Liu JW, Cui XN. Effects of cinobufacini injection on cell proliferation and the expression of topoisomerases in human HepG-2 hepatocellular carcinoma cells. Mol Med Rep 2015; 12:1598-604. [PMID: 25815590 DOI: 10.3892/mmr.2015.3552] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 03/09/2015] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to investigate the effects of cinobufacini injection on the proliferation and expression of topoisomerases in human HepG-2 hepatocarcinoma cells. The cells were divided into a control group and an experimental group, in which 0.105, 0.21, 0.42 mg/l cinobufacini was injected. Cell proliferation was assessed using a 3-(4,5-dimethylthiazol-2-yl) -2,5-diphenyltetrazolium bromide assay, levels of apoptosis were detected using annexin V/propidium iodide staining and cell cycles were analyzed using flow cytometric analysis. The mRNA and protein expression levels of topoisomerase (TOPO) I and TOPO II were determined by reverse transcription-quantitative polymerase chain reaction and western blotting, respectively. Cinobufacini injection significantly inhibited the proliferation of the HepG-2 cells (P<0.05), induced apoptosis (P<0.05) in a dose- and time-dependent manner, induced tumor cell arrest at the S phase in a dose-dependent manner, and downregulated the mRNA and protein expression levels of TOPO I and TOPO II (P<0.05) in a dose-dependent manner. Therefore, cinobufacini was found to inhibit human HepG-2 hepatocellular carcinoma cell proliferation, and downregulation of the expression levels of TOPO I and TOPO II may contribute to the effect on proliferation observed in the Hep‑G2 cells following cinobbufacini injection.
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Affiliation(s)
- Ying Liu
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Li-Ying Ban
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Xi Su
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Shan Gao
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Ji-Wei Liu
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Xiao-Nan Cui
- Department of Oncology, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
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Tang YP, Liu SM, Wei W, Wei XD, Gong YX, Wang R, Li SH, Liu JW. [Effect of pungent dispersion bitter purgation method on the esophageal mucosal intercellular space of reflux esophagitis model rats]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2014; 34:1335-1341. [PMID: 25566625] [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
OBJECTIVE To observe the effect of pungent dispersion bitter purgation method (PDBPM) on the esophageal mucosal intercellular space of reflux esophagitis (RE) model rats. METHODS Totally 100 Wistar rats were randomly divided into the control group, the model group, the Western medicine group (WM), the Chinese medicine group (CM), 25 rats in each group. Rats in the control group only received switch operation. Rats in the rest three groups received modified partial cardia muscle incision combined pylorus ligation of external parts to prepare the RE rat model. Starting from the 3rd day after operation, WM mixture (Motilium 3. 2 mg/kg + Omeprazole Capsule 4.3 mg/kg + Hydrotalcite Tablet 161.4 mg/kg) was administered by gastrogavage to rats in the WM group. Rats in the CM group was administered by gastrogavage with Modified Banxia Xiexin Decoction (5.7 g/kg), 2.5 mL each time, twice daily for 14 consecutive days. Equal volume of normal saline was administered by gastrogavage to rats in the control group and the model group. On day 7 and 14, the lower esophagus pH value, general specimen of mucosa and histopathologic changes were observed. Intercellular spaces of esophageal epithelium were measured for a control study. RESULTS Compared with the same group at day 7, the lower esophagus pH value increased at day 14 (P < 0.01); the naked eye integral of esophageal mucosa and intercellular spaces of esophageal epithelium also decreased at day 14 in the CM group and the WM group (P < 0.05). Compared with the control group at the same time point, the lower esophagus pH value decreased in the model group (P < 0.01). The naked eye integral of esophageal mucosa, and intercellular spaces of esophageal epithelium increased in the model group with increased intercellular spaces (P < 0.01). Compared with the model group at the same time point, the lower esophagus pH value increased and the naked eye integral of esophageal mucosa decreased in the CM group and the WM group at day 7 and 14 (P < 0.01). Intercellular spaces of esophageal epithelium of RE model rats at day 14 was lower in the CM group and the WM group than in the model group (P < 0.01). Compared with the WM group, the lower esophagus pH value decreased at day 7 in the CM group (P < 0.05); the naked eye integral of esophageal mucosa and intercellular spaces of esophageal epithelium decreased at day 14 in the CM group (P < 0.05). CONCLUSIONS PDBPM had favorable treatment effect on RE model rats. The therapeutic effect was more obvious along with the therapeutic course went by. Its mechanism might be achieved through good repair effect on damaged mucosa, increasing the pressure of esophageal sphincter, and inhibiting gastric acid.
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Affiliation(s)
- Yan-Ping Tang
- Department of Digestive Disease, Wangjing Hospital, , Chinese Academy of Medical Sciences, Beijing, China.
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Li K, Liu JW, Zhu ZC, Wang HT, Zu Y, Liu YJ, Yang YH, Xiong ZQ, Shen X, Chen R, Zheng J, Hu ZL. DSTYK kinase domain ablation impaired the mice capabilities of learning and memory in water maze test. Int J Clin Exp Pathol 2014; 7:6486-6492. [PMID: 25400726 PMCID: PMC4230056] [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] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Accepted: 08/23/2014] [Indexed: 06/04/2023]
Abstract
DSTYK (Dual serine/threonine and tyrosine protein kinase) is a putative dual Ser/Thr and Tyr protein kinase with unique structural features. It is proposed that DSTYK may play important roles in brain because of its high expression in most brain areas. In the present study, a DSTYK knockout (KO) mouse line with the ablation of C-terminal of DSTYK including the kinase domain was generated to study the physiological function of DSTYK. The DSTYK KO mice are fertile and have no significant morphological defects revealed by Nissl staining compared with wildtype mice. Open field test and rotarod test showed there is no obvious difference in basic motor and balance capacity between the DSTYK homozygous KO mice and DSTYK heterozygous KO mice. In water maze test, however, the DSTYK homozygous KO mice show impaired capabilities of learning and memory compared with the DSTYK heterozygous KO mice.
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Affiliation(s)
- Kui Li
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
- Shanghai Institute of Materia Medica, Chinese Academy of SciencesShanghai, China
| | - Ji-Wei Liu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
| | - Zhi-Chuan Zhu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
| | - Hong-Tao Wang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
| | - Yong Zu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
| | - Yong-Jie Liu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
| | - Yan-Hong Yang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
| | - Zhi-Qi Xiong
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
| | - Xu Shen
- Shanghai Institute of Materia Medica, Chinese Academy of SciencesShanghai, China
| | - Rui Chen
- Department of Molecular and Human Genetics, Baylor College of MedicineHouston, Texas, United States of America
| | - Jing Zheng
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
| | - Ze-Lan Hu
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology130 Meilong Road, Shanghai, China
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Liu D, Cui KZ, Sun YM, Liu JW, Li YB, Su Y. Protective effects of the sodium/calcium exchanger inhibitor on endothelial dysfunction induced by high glucose. Exp Clin Endocrinol Diabetes 2014; 123:7-10. [PMID: 25148264 DOI: 10.1055/s-0034-1385924] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
This study was designed to investigate the protective effects of KB-R7943, an inhibitor of sodium/calcium exchanger (NCX) on endothelial dysfunction induced by high glucose in endothelial cells. NCX expression, NCX activity and oxidative stress index were determined after endothelial cells were exposed to high glucose in the absence and presence of KB-R7943. Coincubation of endothelial cells with high glucose for 6, 12, 24 and 48 h resulted in a significant decrease in NCX expression, superoxide dismutase (SOD) activity and the release of nitric oxide (NO), and increased NCX activity and malondialdehyde (MDA) production. These effects were abolished by KB-R7943. A similar effect was observed after treatment of endothelial cells with H-7, a protein kinase C (PKC) inhibitor and NADPH oxidase inhibitor (DPI). These results suggest that the sodium/calcium exchanger inhibitor exerts beneficial effects on high glucose-induced endothelial dysfunction, which may be related to PKC signal pathway.
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Affiliation(s)
- D Liu
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, China
| | - K Z Cui
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, China
| | - Y M Sun
- Department of Cardiology, The First Clinical Hospital of Harbin Medical University, Harbin, China
| | - J W Liu
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, China
| | - Y B Li
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, China
| | - Y Su
- Department of Endocrinology, The First Clinical Hospital of Harbin Medical University, Harbin, China
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