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Lu H, Gong J, Zhang T, Jiang Z, Dong W, Dai J, Ma F. Leonurine pretreatment protects the heart from myocardial ischemia-reperfusion injury. Exp Biol Med (Maywood) 2023; 248:1566-1578. [PMID: 37873701 PMCID: PMC10676124 DOI: 10.1177/15353702231198066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/14/2023] [Indexed: 10/25/2023] Open
Abstract
Myocardial ischemia-reperfusion (I/R), an important complication of reperfusion therapy for myocardial infarction, is characterized by hyperactive oxidative stress and inflammatory response. Leonurine (4-guanidino-n-butyl syringate, SCM-198), an alkaloid extracted from Herbaleonuri, was previously found to be highly cardioprotective both in vitro and in vivo. Our current study aimed to investigate the effect of SCM-198 preconditioning on myocardial I/R injury in vitro and in vivo, respectively, as well as to decipher the mechanism involved. Rats were pretreated with SCM-198 before subjected to 45 min of myocardial ischemia, which was followed by 24 h of reperfusion. Primary neonatal rat cardiac ventricular myocytes (NRCMs) were exposed to hypoxia (95% N2 + 5% CO2) for 12 h, and then to 12 h reoxygenation so as to mimic I/R. The enzymatic measurements demonstrated that SCM-198 reduced the release of infarction-related enzymes, and the hemodynamic and echocardiography measurements showed that SCM-198 restored cardiac functions, which suggested that SCM-198 could significantly reduce infarct size, maintaining cardiomyocyte morphology, and that SCM-198 pretreatment could significantly reduce cardiomyocytes apoptosis. Moreover, we demonstrated that SCM-198 could exert a cardioprotective effect by reducing reactive oxygen species (ROS) level and Akt phosphorylation while reducing the phosphorylation of p38 and JNK. In addition, the upregulation of p-Akt, Bcl-2/Bax induced by SCM-198 treatment were blocked by PI3K inhibitor LY294002, and the total protein level of Akt was not affected by SCM-198 pretreatment. Our experimental results indicated that SCM-198 could have a cardioprotective effect on I/R injury, which confirmed the utility of SCM-198 preconditioning as a strategy to prevent I/R injury.
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Affiliation(s)
- Huiping Lu
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Jingru Gong
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Tongtong Zhang
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Zhe Jiang
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Wenmin Dong
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Jing Dai
- Department of Clinical Diagnostics, Hebei Medical University, Shijiazhuang 050017, China
| | - Fenfen Ma
- Department of Pharmacy, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai 201399, China
- School of Pharmacy, Fudan University, Shanghai 201203, China
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2
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Chen Z, Wu J, Li S, Liu C, Ren Y. Inhibition of Myocardial Cell Apoptosis Is Important Mechanism for Ginsenoside in the Limitation of Myocardial Ischemia/Reperfusion Injury. Front Pharmacol 2022; 13:806216. [PMID: 35300297 PMCID: PMC8921549 DOI: 10.3389/fphar.2022.806216] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/09/2022] [Indexed: 12/25/2022] Open
Abstract
Ischemic heart disease has a high mortality, and the recommended therapy is reperfusion. Nevertheless, the restoration of blood flow to ischemic tissue leads to further damage, namely, myocardial ischemia/reperfusion injury (MIRI). Apoptosis is an essential pathogenic factor in MIRI, and ginsenosides are effective in inhibiting apoptosis and alleviating MIRI. Here, we reviewed published studies on the anti-apoptotic effects of ginsenosides and their mechanisms of action in improving MIRI. Each ginsenoside can regulate multiple pathways to protect the myocardium. Overall, the involved apoptotic pathways include the death receptor signaling pathway, mitochondria signaling pathway, PI3K/Akt signaling pathway, NF-κB signaling pathway, and MAPK signaling pathway. Ginsenosides, with diverse chemical structures, regulate different apoptotic pathways to relieve MIRI. Summarizing the effects and mechanisms of ginsenosides contributes to further mechanism research studies and structure–function relationship research studies, which can help the development of new drugs. Therefore, we expect that this review will highlight the importance of ginsenosides in improving MIRI via anti-apoptosis and provide references and suggestions for further research in this field.
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Affiliation(s)
- Zhihan Chen
- School of Acupuncture Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jingping Wu
- Department of Medical Cosmetology, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Sijing Li
- School of Acupuncture Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Caijiao Liu
- School of Acupuncture Moxibustion and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yulan Ren
- School of Chinese Classics, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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3
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PSMB4 inhibits cardiomyocyte apoptosis via activating NF-κB signaling pathway during myocardial ischemia/reperfusion injury. J Mol Histol 2021; 52:693-703. [PMID: 33954843 DOI: 10.1007/s10735-021-09977-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 04/22/2021] [Indexed: 01/16/2023]
Abstract
Myocardial ischemia/reperfusion (I/R) injury induces cardiomyocyte apoptosis to deteriorate heart function. Thus, how to inhibit cardiomyocyte apoptosis is the focus of recent researches. Proteasome family member PSMB4 (proteasome subunit beta type-4) promotes cell survival. The relationship between PSMB4 and cardiomyocyte apoptosis during myocardial I/R is unknown. In this study, PSMB4 expression increased in rat myocardial I/R model, positively correlated with cleaved caspase-3 expression, negatively correlated with Bcl-2 expression. In vitro, neonatal ventricle cardiomyocyte hypoxia/reoxygenation (H/R) model was constructed to mimic myocardial I/R. PSMB4 silence promoted cardiomyocyte apoptosis and IκBα expression, inhibited the activation of NF-κB. On the contrary, PSMB4 overexpession inhibited cardiomyocyte apoptosis and IκBα expression, promoted the activation of NF-κB. Additionally, PSMB4-IκBα interaction was identified, suggesting that PSMB4 might participate in the proteasome dependent degradation of IκBα. The data indicates that PSMB4 inhibits cardiomyocyte apoptosis via activating NF-κB signaling pathway during myocardial I/R, which can supply novel molecular target for the treatment of ischemic heart disease.
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Yao B, Wan X, Zheng X, Zhong T, Hu J, Zhou Y, Qin A, Ma Y, Yin D. Critical roles of microRNA-141-3p and CHD8 in hypoxia/reoxygenation-induced cardiomyocyte apoptosis. Cell Biosci 2020; 10:20. [PMID: 32123560 PMCID: PMC7035710 DOI: 10.1186/s13578-020-00384-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 02/11/2020] [Indexed: 12/11/2022] Open
Abstract
Background Cardiovascular diseases are currently the leading cause of death in humans. The high mortality of cardiac diseases is associated with myocardial ischemia and reperfusion (I/R). Recent studies have reported that microRNAs (miRNAs) play important roles in cell apoptosis. However, it is not known yet whether miR-141-3p contributes to the regulation of cardiomyocyte apoptosis. It has been well established that in vitro hypoxia/reoxygenation (H/R) model can follow in vivo myocardial I/R injury. This study aimed to investigate the effects of miR-141-3p and CHD8 on cardiomyocyte apoptosis following H/R. Results We found that H/R remarkably reduces the expression of miR-141-3p but enhances CHD8 expression both in mRNA and protein in H9c2 cardiomyocytes. We also found either overexpression of miR-141-3p by transfection of miR-141-3p mimics or inhibition of CHD8 by transfection of small interfering RNA (siRNA) significantly decrease cardiomyocyte apoptosis induced by H/R. Moreover, miR-141-3p interacts with CHD8. Furthermore, miR-141-3p and CHD8 reduce the expression of p21. Conclusion MiR-141-3p and CHD8 play critical roles in cardiomyocyte apoptosis induced by H/R. These studies suggest that miR-141-3p and CHD8 mediated cardiomyocyte apoptosis may offer a novel therapeutic strategy against myocardial I/R injury-induced cardiovascular diseases.
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Affiliation(s)
- Bifeng Yao
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Xiaoya Wan
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Xinbin Zheng
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Ting Zhong
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Jia Hu
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Yu Zhou
- 2Department of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060 Hubei China
| | - Anna Qin
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Yeshuo Ma
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China
| | - Deling Yin
- 1Xiangya School of Pharmaceutical Science, Central South University, Changsha, 410008 Hunan China.,3Department of Internal Medicine, College of Medicine, East Tennessee State University, Johnson City, TN 37604 USA
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Wang X, Lu L, Tan Y, Jiang L, Zhao M, Gao E, Yu S, Liu J. GPR 30 reduces myocardial infarct area and fibrosis in female ovariectomized mice by activating the PI3K/AKT pathway. Life Sci 2019; 226:22-32. [PMID: 30905784 DOI: 10.1016/j.lfs.2019.03.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 03/14/2019] [Accepted: 03/20/2019] [Indexed: 12/30/2022]
Abstract
AIMS Estrogen plays an important role in cardioprotection. Animal experiments showed that the G-protein coupled estrogen receptor 30 (GPR30) specific agonist G1 could reduce post-ischemic dysfunction and inhibit cardiac fibroblast proliferation. However, the underlying mechanism of action is not clear. The current study tests the hypothesis that GPR30 reduces myocardial infarct area and fibrosis in female ovariectomized (OVX) mice by activating the PI3K/AKT pathway. MAIN METHODS In this study, we established a myocardial infarction (MI) animal model derived from OVX C57BL/6 female mice, and investigated the effect of G1 on cardiac function by echocardiography and Hemodynamics, morphology and expression of fibrosis-related and apoptosis-related proteins by Masson's trichrome and H&E, Immunofluorescence, Western blotting and TUNEL. KEY FINDINGS Combination with OVX significantly increased myocardial fibrosis and MI area compared to MI treatment alone, as determined by echocardiography and hemodynamics. Further addition of G1 changed the expression of apoptosis-related proteins, decreased the levels of tumor necrosis factor-α and interleukin-10, and reduced the degree of myocardial fibrosis and myocardial infarct area. Primary cultured cardiac fibroblasts (CFs) were subjected to hypoxia/serum deprivation (H/SD) simulating the in vivo ischemia model. When the PI3K/AKT pathway was inhibited by wortmanin in H/SD CFs, G1 failed to induce significant changes in the expression of apoptosis-related proteins. SIGNIFICANCE It suggested that GPR30 may improve cardiac function in female OVX mice by activating the PI3K/AKT pathway and reducing myocardial infarct size and fibrosis.
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Affiliation(s)
- Xiaowu Wang
- Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Linhe Lu
- Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Yanzhen Tan
- Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Liqing Jiang
- Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Minggao Zhao
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an 710032, PR China
| | - Erhe Gao
- Center for Translational Medicine, Lewis Katz School of Medicine at Temple University, Philadelphia, PA 19140, USA
| | - Shiqiang Yu
- Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Jincheng Liu
- Cardiovascular Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China.
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Sheng Z, Lu W, Zuo Z, Wang D, Zuo P, Yao Y, Ma G. MicroRNA-7b attenuates ischemia/reperfusion-induced H9C2 cardiomyocyte apoptosis via the hypoxia inducible factor-1/p-p38 pathway. J Cell Biochem 2018; 120:9947-9955. [PMID: 30548297 DOI: 10.1002/jcb.28277] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 10/24/2018] [Indexed: 12/30/2022]
Abstract
OBJECTIVE MicroRNAs (miRNAs) have been shown to play crucial roles in the occurrence, development, and treatment of many cardiovascular diseases. Coronary heart disease (CAD)-related miRNAs are still a growing research area. miR-7b was reported to be downregulated in acute myocardial infarction (AMI) myocardium tissues. However, it remains largely unknown whether miR-7b is involved in the pathogenesis and progression of the AMI ischemia/reperfusion (I/R) injury. METHODS Male C57BL/6 J mice and H9C2 cells were used as models in this study. Masson staining, real-time polymerase chain reaction, Western blot analysis, and terminal deoxynucleotidyl transferase-mediated dUTP nick-end-labeling immunofluorescence staining assays were performed to detect the related indicators in the study. SPSS 17.0 software was used to calculate the experimental data. RESULTS The results showed that miR-7b expression is downregulated after I/R in mice, and miR-7b could inhibit apoptosis in I/R-induced H9C2 cells via upregulating hypoxia-inducible factor 1a (HIF1a). The inhibitory effect of miR-7b on I/R-induced apoptosis in H9C2 cells was blocked by HIF1a silencing. In addition, our data suggested that the p-P38 pathway may be involved in the role of miR-7 in I/R-induced H9C2 cell apoptosis. CONCLUSION We confirmed that the overexpression of miR-7b inhibits I/R-induced apoptosis in H9C2 cells by targeting the HIF1a/p-P38 pathway. Our findings not only demonstrate the potential role of miR-7b in attenuating I/R-induced apoptosis but also provide a new insight into the better prevention of the I/R injury by mediating HIF-1 and p-P38.
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Affiliation(s)
- Zulong Sheng
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Wenbin Lu
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Zhi Zuo
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Dong Wang
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Pengfei Zuo
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Yuyu Yao
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
| | - Genshan Ma
- Department of Cardiology, Zhongda Hospital, Medical School of Southeast University, Nanjing, China
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7
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Liu AJ, Pang CX, Liu GQ, Wang SD, Chu CQ, Li LZ, Dong Y, Zhu DZ. Ameliorative effect of sevoflurane on endoplasmic reticulum stress mediates cardioprotection against ischemia-reperfusion injury 1. Can J Physiol Pharmacol 2018; 97:345-351. [PMID: 29894643 DOI: 10.1139/cjpp-2018-0016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We aimed to investigate whether the cardioprotection of sevoflurane against ischemia-reperfusion (IR) injury is via inhibiting endoplasmic reticulum stress. The rat in vivo model of myocardial IR injury was induced by ligation of the left anterior descending coronary artery. Sevoflurane significantly ameliorated the reduced cardiac function, increased infarct size, and elevated troponin I level and lactate dehydrogenase activity in plasma induced by IR injury. Sevoflurane suppressed the IR-induced myocardial apoptosis. The increased protein levels of glucose-regulated protein 78 and C/EBP homologous protein (CHOP) after myocardial IR were significantly reduced by sevoflurane. The protein levels of phosphorylated protein kinase RNA-like endoplasmic reticulum kinase (PERK), phosphorylated eukaryotic initiation factor 2 (eIF2α), and activating transcription factor 4 (ATF4) were significantly increased in rats with IR and attenuated by sevoflurane treatment. The phosphorylation of Akt was further activated by sevoflurane. The cardioprotection of sevoflurane could be blocked by wortmannin, a PI3K/Akt inhibitor. Our results suggest that the cardioprotection of sevoflurane against IR injury might be mediated by suppressing PERK/eIF2a/ATF4/CHOP signaling via activating the Akt pathway, which helps in understanding the novel mechanism of the cardioprotection of sevoflurane.
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Affiliation(s)
- Ai-Jie Liu
- a Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, China, 266000
| | - Chun-Xia Pang
- a Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, China, 266000
| | - Guo-Qiang Liu
- a Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, China, 266000
| | - Shi-Duan Wang
- a Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, China, 266000
| | - Chun-Qin Chu
- a Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, China, 266000
| | - Lin-Zhang Li
- a Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, China, 266000
| | - Yan Dong
- b Department of Operating Room, Affiliated Hospital of Qingdao University, Qingdao, China, 266000
| | - De-Zhang Zhu
- a Department of Anesthesiology, Affiliated Hospital of Qingdao University, Qingdao, China, 266000
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Du Y, Wang M, Liu X, Zhang J, Xu X, Xu H, Sun G, Sun X. Araloside C Prevents Hypoxia/Reoxygenation-Induced Endoplasmic Reticulum Stress via Increasing Heat Shock Protein 90 in H9c2 Cardiomyocytes. Front Pharmacol 2018; 9:180. [PMID: 29719506 PMCID: PMC5914297 DOI: 10.3389/fphar.2018.00180] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 02/19/2018] [Indexed: 01/06/2023] Open
Abstract
Araloside C (AsC) is a cardioprotective triterpenoid compound that is mainly isolated from Aralia elata. This study aims to determine the effects of AsC on hypoxia-reoxygenation (H/R)-induced apoptosis in H9c2 cardiomyocytes and its underlying mechanisms. Results demonstrated that pretreatment with AsC (12.5 μM) for 12 h significantly suppressed the H/R injury in H9c2 cardiomyocytes, including improving cell viability, attenuating the LDH leakage and preventing cardiomyocyte apoptosis. AsC also inhibited H/R-induced ER stress by reducing the activation of ER stress pathways (PERK/eIF2α and ATF6), and decreasing the expression of ER stress-related apoptotic proteins (CHOP and caspase-12). Moreover, AsC greatly improved the expression level of HSP90 compared with that in the H/R group. The use of HSP90 inhibitor 17-AAG and HSP90 siRNA blocked the above suppression effect of AsC on ER stress-related apoptosis caused by H/R. Taken together, AsC could reduce H/R-induced apoptosis possibly because it attenuates ER stress-dependent apoptotic pathways by increasing HSP90 expression.
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Affiliation(s)
- Yuyang Du
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
| | - Min Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
| | - Xuesong Liu
- Center of Research and Development on Life Sciences and Environmental Sciences, Harbin University of Commerce, Harbin, China
| | - Jingyi Zhang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
| | - Xudong Xu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
| | - Huibo Xu
- Academy of Chinese Medical Sciences of Jilin Province, Changchun, China
| | - Guibo Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
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9
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Liu ZM, Zhang XY, Chen J, Shen JT, Jiang ZY, Guan XD. Terlipressin protects intestinal epithelial cells against oxygen-glucose deprivation/re-oxygenation injury via the phosphatidylinositol 3-kinase pathway. Exp Ther Med 2017; 14:260-266. [PMID: 28672923 PMCID: PMC5488628 DOI: 10.3892/etm.2017.4502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 02/01/2017] [Indexed: 12/29/2022] Open
Abstract
Intestinal ischemia/reperfusion (I/R) injury is associated with a high morbidity and mortality. Vasopressin is administered to critically ill patients with potential intestinal I/R. However, the impacts of vasopressin on intestinal epithelia under ischemic/anoxic conditions remain unclear. The aim of the present study was to evaluate the effects of terlipressin, a highly selective vasopressin V1 receptor agonist, on oxygen and glucose deprivation/re-oxygenation (OGD/R)-induced damage in intestinal epithelial cells (IEC-6). IEC-6 cells were subjected to OGD for 4 h, followed by 4 h re-oxygenation. Terlipressin was incubated with cells for 4 h following OGD. Following OGD/R, IEC-6 cell viability, proliferation and apoptosis, as well as cell cycle dynamics, were assessed and the levels of tumor necrosis factor (TNF)-α and 15-F2t-isoprostane in the culture medium were measured. In addition, wortmannin, a specific phosphatidylinositol 3-kinase (PI3K) inhibitor, was administrated to investigate the mechanism of terlipressin action. The results demonstrated that IEC-6 cell viability and proliferation decreased, and cell apoptosis increased, following OGD/R. However, IEC-6 cell cycle dynamics did not significantly change 4 h after OGD. Incubation with 25 nM terlipressin significantly improved cell viability, proliferation and apoptosis. Furthermore, terlipressin inhibited the secretion of TNF-α and 15-F2t-isoprostane from IEC-6 cells following OGD/R. The aforementioned effects of terlipressin were completely abolished following the application of 2 µM wortmannin. Therefore, the current study demonstrated that terlipressin administration following OGD attenuates OGD/R-induced cell damage via the PI3K signaling pathway. These results may help physicians to better understand and more effectively use terlipressin in a clinical setting.
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Affiliation(s)
- Zi-Meng Liu
- Surgical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xu-Yu Zhang
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Juan Chen
- Surgical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Jian-Tong Shen
- Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Zhi-Yi Jiang
- Surgical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xiang-Dong Guan
- Surgical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong 510080, P.R. China
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10
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Expression and Critical Role of Interleukin Enhancer Binding Factor 2 in Hepatocellular Carcinoma. Int J Mol Sci 2016; 17:ijms17081373. [PMID: 27556459 PMCID: PMC5000768 DOI: 10.3390/ijms17081373] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 08/05/2016] [Accepted: 08/08/2016] [Indexed: 02/05/2023] Open
Abstract
Interleukin enhancer binding factor 2 (ILF2), a transcription factor, regulates cell growth by inhibiting the stabilization of mRNA. Currently, its role has gained recognition as a factor in the tumorigenic process. However, until now, little has been known about the detailed role ILF2 plays in hepatocellular carcinoma (HCC). In this study, we investigated the expression levels of ILF2 in HCC tissue with Western blot and immunohistochemical assays. To examine the effect of ILF2 on liver cancer cell growth and apoptosis, small interfering RNAs (siRNAs) targeting ILF2 were recombined to create lentiviral overexpression vectors. Our results showed higher expression levels of ILF2 mRNA and ILF2 protein in HCC tissue compared with matched peritumoral tissue. Expression of ILF2 may regulate cell growth and apoptosis in liver cancer cells via regulation of B-cell lymphoma 2 (Bcl-2), Bcl-2 related ovarian killer (Bok), Bcl-2-associated X protein (BAX), and cellular inhibitor of apoptosis 1 (cIAP1). Moreover, we inoculated nude mice with liver cancer cells to investigate the effect of ILF2 on tumorigenesis in vivo. As expected, a rapid growth was observed in cancer cells inoculated with a lentiviral vector coding Flag-ILF2 (Lenti-ILF2) compared with the control cells. Hence, these results promote a better understanding of ILF2’s potential role as a therapeutic target in HCC.
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11
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Yin MS, Xu SH, Wang Y, Jie L, Zhang Q, Zheng WM, Sun XH, Liang C, Wang FW, Xi XH, Mu YL. Methylamine irisolidone, a novel compound, increases total ATPase activity and inhibits apoptosis in vivo and in vitro. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2016; 18:562-575. [PMID: 26898948 DOI: 10.1080/10286020.2015.1133610] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 12/14/2015] [Indexed: 06/05/2023]
Abstract
We propose to further research the protective effect of MMI on myocardium ischemic rat model and H9c2 cells that underwent cell apoptosis induced by hypoxia. We established the myocardium ischemic rat model via the cardiac surgical procedures in vivo and treated the model rats with different concentration of MMI. In vitro, with the pretreatment of MMI for 12 h in the model of Na2S2O4-induced hypoxia injury, the H9c2 cells viability was determined by MTT assay. We found that MMI had significantly improved cardiac function of the myocardial ischemia, and significantly decreased the reactive oxygen species level. The expression of P53, Bcl-2, Bax, and caspase-9 was also induced by MMI. In vitro study revealed a concentration-dependent increase in cell viability associated with MMI pretreatment. Annexin V-FITC and PI staining results showed that MMI had a preventive effect on hypoxia-induced apoptosis in H9c2 cells. MMI also inhibited the mitochondrial membrane potential decrease and increased total ATPase activity during hypoxia in H9c2 cells. In conclusion, MMI can enhance the cardiac function in myocardial ischemic rat and increase cell viability and attenuate the apoptosis in H9c2 cells induced by hypoxia, which was associated with inhibiting MMP decreasion and increasing total ATPase activity.
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Affiliation(s)
- Mao-Shan Yin
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
- b School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan 250200 , China
| | - Shu-Hong Xu
- c Department of Pharmacology , China Pharmaceutical University , Nanjing 211198 , China
| | - Yan Wang
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
| | - Li Jie
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
| | - Qiang Zhang
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
| | - Wu-Mei Zheng
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
- b School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan 250200 , China
| | - Xiao-Hui Sun
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
- b School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan 250200 , China
| | - Chen Liang
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
- b School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan 250200 , China
| | - Fu-Wen Wang
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
| | - Xiao-Hui Xi
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
- b School of Medicine and Life Sciences , University of Jinan-Shandong Academy of Medical Sciences , Jinan 250200 , China
| | - Yan-Ling Mu
- a Key Laboratory for Rare Disease of Shandong Province, Department of Pharmacology , Institute of Materia Medica, Shandong Academy of Medical Sciences , Jinan 250062 , China
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