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Liu S, Ren J, Liu S, Zhao X, Liu H, Zhou T, Wang X, Liu H, Tang L, Chen H. Resveratrol inhibits autophagy against myocardial ischemia-reperfusion injury through the DJ-1/MEKK1/JNK pathway. Eur J Pharmacol 2023; 951:175748. [PMID: 37149277 DOI: 10.1016/j.ejphar.2023.175748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/17/2023] [Accepted: 04/25/2023] [Indexed: 05/08/2023]
Abstract
Resveratrol (RES), a natural polyphenolic compound found in red wine and grape skins, has attracted significant attention due to its cardioprotective properties. DJ-1, a multifunctional protein that participated in transcription regulation and antioxidant defense, was shown to provide a significant protective impact in cardiac cells treated with ischemia-reperfusion. We created a myocardial ischemia-reperfusion (I/R) model in vivo and in vitro by ligating the left anterior descending branch of rats and subjecting H9c2 cells to anoxia/reoxygenation (A/R) to investigate whether RES reduces myocardial ischemia-reperfusion injury by upregulating DJ-1. We discovered that RES dramatically enhanced cardiac function in rats with I/R. Subsequently, we found that RES prevented the rise in autophagy (P62 degradation and LC3-II/LC3-I increase) induced by cardiac ischemia-reperfusion in vitro and in vivo. Notably, the autophagic agonist rapamycin (RAPA) eliminated RES-induced cardioprotective effects. In addition, Further data showed that RES significantly increased the expression of DJ-1 in the myocardium with the treatment of I/R. At the same time, pretreatment with RES reduced phosphorylation of MAPK/ERK kinase kinase 1 (MEKK1) and Jun N-terminal Kinase (JNK) stimulated by cardiac ischemia-reperfusion, and Beclin-1 mRNA and protein levels while decreasing lactate dehydrogenase (LDH) and improving cell viability. However, the lentiviral shDJ-1 and JNK agonist anisomycin disrupted the effects of RES. In summary, RES could inhibit autophagy against myocardial ischemia-reperfusion injury through DJ-1 modulation of the MEKK1/JNK pathway, providing a novel therapeutic strategy for cardiac homeostasis.
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Affiliation(s)
- Song Liu
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Jianmin Ren
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Shiyi Liu
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Xiaoyan Zhao
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Huiru Liu
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Tingting Zhou
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Xueying Wang
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Haoyue Liu
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Lei Tang
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China
| | - Heping Chen
- Provincial Key Laboratory of Basic Pharmacology, Nanchang University, Nanchang, Jiangxi, 330006, PR China.
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Xue Y, Liu H, Yang XX, Pang L, Liu J, Ng KTP, Yeung OWH, Lam YF, Zhang WY, Lo CM, Man K. Inhibition of Carnitine Palmitoyltransferase 1A Aggravates Fatty Liver Graft Injury via Promoting Mitochondrial Permeability Transition. Transplantation 2021; 105:550-560. [PMID: 32890136 DOI: 10.1097/tp.0000000000003437] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Hepatic steatosis is a major risk factor for graft failure due to increased susceptibility of fatty liver to ischemia-reperfusion injury (IRI) during transplantation. Here, we aimed to investigate the role of carnitine palmitoyltransferase 1A (CPT1A) in fatty liver graft injury and to explore the underlying mechanism and therapeutic potential on attenuating hepatic IRI. METHODS Intragraft CPT1A expression profile and the association with fatty graft injury were investigated in human and rat liver transplantation samples. The underlying mechanism and therapeutic potential of CPT1A activator against IRI were also explored in mouse hepatic ischemia-reperfusion plus major hepatectomy model and in in vitro. RESULTS CPT1A expression was significantly reduced (P = 0.0019; n = 96) in human fatty liver graft compared with normal one at early phase after transplantation. Low expression of CPT1A was significantly associated with high serum alanine aminotransferase (P = 0.0144) and aspartate aminotransferase (P = 0.0060) levels. The inhibited CPT1A and poor liver function were consistently observed in rat and mouse models with fatty livers. Furthermore, inhibition of CPT1A significantly promoted the translocation of chloride intracellular channel 1 to form chloride ion channel. The dysregulation of chloride ion channel activity subsequently triggered mitochondrial permeability transition (MPT) pore opening, exacerbated cellular oxidative stress, and energy depletion. Importantly, our intravital confocal imaging showed that CPT1A activation attenuated hepatic injury through preventing MPT after reperfusion in fatty mice. CONCLUSIONS CPT1A inhibition triggered MPT contributed to severe IRI in fatty liver graft. CPT1A restoration may offer therapeutic potential on attenuating hepatic IRI.
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Affiliation(s)
- Yan Xue
- Department of Surgery, HKU-SZH &LKS Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China
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Tetramethylpyrazine Attenuates the Endotheliotoxicity and the Mitochondrial Dysfunction by Doxorubicin via 14-3-3 γ/Bcl-2. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:5820415. [PMID: 31885804 PMCID: PMC6914960 DOI: 10.1155/2019/5820415] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Revised: 08/28/2019] [Accepted: 09/11/2019] [Indexed: 02/08/2023]
Abstract
Doxorubicin (Dox) with cardiotoxicity and endotheliotoxicity limits its clinical application for cancer. The toxicitic mechanism involves excess ROS generation. 14-3-3s have the protective effects on various injured tissues and cells. Tetramethylpyrazine (TMP) is an alkaloid extracted from the rhizome of Ligusticum wallichii and has multiple bioactivities. We hypothesize that TMP has the protective effects on vascular endothelium by upregulating 14-3-3γ. To test the hypothesis, Dox-induced endotheliotoxicity was used to establish vascular endothelium injury models in mice and human umbilical vein endothelial cells. The effects of TMP were assessed by determining thoracic aortic strips' endothelium-dependent dilation (EDD), as well as LDH, CK, caspase-3, SOD, CAT, GSH-Px activities and MDA level in serum, apoptotic rate, and histopathological changes of vascular tissue (in vivo). Also, cell viability, LDH and caspase-3 activities, ROS generation, levels of NAD+/NADH and GSH/GSSG, MMP, mPTP opening, and apoptotic rate were evaluated (in vitro). The expression of 14-3-3γ and Bcl-2, as well as phosphorylation of Bad (S112), were determined by Western blot. Our results showed that Dox-induced injury to vascular endothelium was decreased by TMP via upregulating 14-3-3γ expression in total protein and Bcl-2 expression in mitochondria, activating Bad (S112) phosphorylation, maintaining EDD, reducing LDH, CK, and caspase-3 activities, thereby causing a reduction in apoptotic rate, and histopathological changes of vascular endothelium (in vivo). Furthermore, TMP increased cell viability and MMP levels, maintained NAD+/NADH, GSH/GSSG balance, decreased LDH and caspase-3 activities, ROS generation, mPTP opening, and apoptotic rate (in vitro). However, the protective effects to vascular endothelium of TMP were significantly canceled by pAD/14-3-3γ-shRNA, an adenovirus that caused knockdown 14-3-3γ expression, or ABT-737, a specific Bcl-2 inhibitor. In conclusion, this study is the first to demonstrate that TMP protects the vascular endothelium against Dox-induced injury via upregulating 14-3-3γ expression, promoting translocation of Bcl-2 to the mitochondria, closing mPTP, maintaining MMP, inhibiting RIRR mechanism, suppressing oxidative stress, improving mitochondrial function, and alleviating Dox-induced endotheliotoxicity.
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Xu RY, Xu XW, Deng YZ, Ma ZX, Li XR, Zhao L, Qiu LJ, Liu HY, Chen HP. Resveratrol attenuates myocardial hypoxia/reoxygenation-induced cell apoptosis through DJ-1-mediated SIRT1-p53 pathway. Biochem Biophys Res Commun 2019; 514:401-406. [PMID: 31053297 DOI: 10.1016/j.bbrc.2019.04.165] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 04/24/2019] [Indexed: 02/04/2023]
Abstract
Resveratrol, a multi-functional phytoalexin, has been well indicated to exert cardioprotective effects by weakening ischemia/reperfusion (I/R) injury, and cell apoptosis is a vital way in I/R injury. SIRT1-p53 pathway has strong significance in regulating cell apoptosis. DJ-1 can directly bind to SIRT1 and stimulate the activity of SIRT1-p53. Therefore, the current study was determined whether Resveratrol attenuates hypoxia/reoxygenation (H/R)-induced cell apoptosis, and whether DJ-1-mediated SIRT1 activation involves in the cardioprotective effects of Resveratrol. The results showed that remarkable decrease in the number of apoptotic cells along with reduction of lactate dehydrogenase release and restoration of cell viability emerged when Resveratrol was applied in the H9c2 cells exposed to H/R. Moreover, Resveratrol increased DJ-1 expression and promoted the interaction of DJ-1 with SIRT1, which further contributed to subsequent restoration of SIRT1 activity and decrease of acetylation level of p53. However, above cardioprotective effects of Resveratrol were abrogated by DJ-1 siRNA and SIRT1 specific inhibitor Sirtinol. In conclusion, the current study demonstrated that Resveratrol suppressed H/R-induced cell apoptosis, which may be conducted by up-regulating DJ-1, and later activating SIRT1 activity and subsequently inhibiting p53 acetylation level in the H9c2 cells.
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Affiliation(s)
- Rui-Yuan Xu
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Xing-Wang Xu
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Yi-Zhang Deng
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Zhao-Xia Ma
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Xiao-Ran Li
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Le Zhao
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Le-Jia Qiu
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - Hao-Yue Liu
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China
| | - He-Ping Chen
- The Key Laboratory of Basic Pharmacology, School of Pharmaceutical Science, Nanchang University, Nanchang, 330006, PR China.
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Zhang WF, Jin YC, Li XM, Yang Z, Wang D, Cui JJ. Protective effects of leptin against cerebral ischemia/reperfusion injury. Exp Ther Med 2019; 17:3282-3290. [PMID: 30988703 PMCID: PMC6447799 DOI: 10.3892/etm.2019.7377] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 02/04/2019] [Indexed: 12/12/2022] Open
Abstract
In recent years, the use of thrombolytic therapy for treating ischemia/reperfusion injury has resulted in damage to the self-regulatory mechanisms of the brain. This is due to the increased production of free radicals, excitatory amino acids and pro-inflammatory cytokines causing secondary damage to the brain. Simple thrombolytic therapy has not been the best approach for treating ischemia/reperfusion injury. Excessive perfusion leads to failure of the body's self-regulatory functions, which in turn increases the area of cerebral edema and aggravates cerebral ischemia. Previous studies have evaluated the satiety hormone leptin as a link between energy expenditure and obesity. Of note, leptin, which is involved in brain development, synaptic transmission and angiogenesis following ischemia/reperfusion injury, has been considered an important factor for treating ischemia/reperfusion injury. The present review outlines the discovery of leptin and discusses its association with cerebral ischemia/reperfusion.
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Affiliation(s)
- Wen-Fang Zhang
- Department of Biomedical Research Center, Binzhou Medical University, Yantai, Shandong 264000, P.R. China
| | - Yin-Chuan Jin
- Department of Histology and Embryology, Binzhou Medical University, Yantai, Shandong 264000, P.R. China
| | - Xiao-Mei Li
- Department of Cardiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264000, P.R. China
| | - Zhi Yang
- Department of Cardiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264000, P.R. China
| | - Dong Wang
- Department of Cardiology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264000, P.R. China
| | - Jing-Jing Cui
- Department of Medical Affairs, Affiliated Hospital of Binzhou Medical College, Binzhou, Shandong 256603, P.R. China
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Zhang Y, Li XR, Zhao L, Duan GL, Xiao L, Chen HP. DJ-1 preserving mitochondrial complex I activity plays a critical role in resveratrol–mediated cardioprotection against hypoxia/reoxygenation–induced oxidative stress. Biomed Pharmacother 2018; 98:545-552. [DOI: 10.1016/j.biopha.2017.12.094] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 12/19/2017] [Accepted: 12/19/2017] [Indexed: 01/03/2023] Open
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