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Qu Z, Pang X, Mei Z, Li Y, Zhang Y, Huang C, Liu K, Yu S, Wang C, Sun Z, Liu Y, Li X, Jia Y, Dong Y, Lu M, Ju T, Wu F, Huang M, Li N, Dou S, Jiang J, Dong X, Zhang Y, Li W, Yang B, Du W. The positive feedback loop of the NAT10/Mybbp1a/p53 axis promotes cardiomyocyte ferroptosis to exacerbate cardiac I/R injury. Redox Biol 2024; 72:103145. [PMID: 38583415 PMCID: PMC11002668 DOI: 10.1016/j.redox.2024.103145] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 03/28/2024] [Accepted: 03/30/2024] [Indexed: 04/09/2024] Open
Abstract
Ferroptosis is a nonapoptotic form of regulated cell death that has been reported to play a central role in cardiac ischemia‒reperfusion (I/R) injury. N-acetyltransferase 10 (NAT10) contributes to cardiomyocyte apoptosis by functioning as an RNA ac4c acetyltransferase, but its role in cardiomyocyte ferroptosis during I/R injury has not been determined. This study aimed to elucidate the role of NAT10 in cardiac ferroptosis as well as the underlying mechanism. The mRNA and protein levels of NAT10 were increased in mouse hearts after I/R and in cardiomyocytes that were exposed to hypoxia/reoxygenation. P53 acted as an endogenous activator of NAT10 during I/R in a transcription-dependent manner. Cardiac overexpression of NAT10 caused cardiomyocyte ferroptosis to exacerbate I/R injury, while cardiomyocyte-specific knockout of NAT10 or pharmacological inhibition of NAT10 with Remodelin had the opposite effects. The inhibition of cardiomyocyte ferroptosis by Fer-1 exerted superior cardioprotective effects against the NAT10-induced exacerbation of post-I/R cardiac damage than the inhibition of apoptosis by emricasan. Mechanistically, NAT10 induced the ac4C modification of Mybbp1a, increasing its stability, which in turn activated p53 and subsequently repressed the transcription of the anti-ferroptotic gene SLC7A11. Moreover, knockdown of Mybbp1a partially abolished the detrimental effects of NAT10 overexpression on cardiomyocyte ferroptosis and cardiac I/R injury. Collectively, our study revealed that p53 and NAT10 interdependently cooperate to form a positive feedback loop that promotes cardiomyocyte ferroptosis to exacerbate cardiac I/R injury, suggesting that targeting the NAT10/Mybbp1a/p53 axis may be a novel approach for treating cardiac I/R.
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Affiliation(s)
- Zhezhe Qu
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Xiaochen Pang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Zhongting Mei
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Ying Li
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yaozhi Zhang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Chuanhao Huang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Kuiwu Liu
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Shuting Yu
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Changhao Wang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Zhiyong Sun
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yingqi Liu
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Xin Li
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yingqiong Jia
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yuechao Dong
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Meixi Lu
- Traditional Chinese Medicine School, Beijing University of Chinese Medicine, Beijing, China
| | - Tiantian Ju
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Fan Wu
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Min Huang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Na Li
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Shunkang Dou
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Jianhao Jiang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Xianhui Dong
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Yi Zhang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Wanhong Li
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China
| | - Baofeng Yang
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, China; Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, 2019RU070, Harbin, China.
| | - Weijie Du
- State Key Laboratory of Frigid Zone Cardiovascular Diseases (SKLFZCD), Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, China; Research Unit of Noninfectious Chronic Diseases in Frigid Zone, Chinese Academy of Medical Sciences, 2019RU070, Harbin, China; Eye Hospital, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang Province, China.
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Yan W, He X, Wang G, Hu G, Cui B. Adipokine vaspin maintains angiogenesis and neurological function during cerebral ischemia-reperfusion via suppressing endoplasmic reticulum stress. Clin Hemorheol Microcirc 2024:CH232077. [PMID: 38517781 DOI: 10.3233/ch-232077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
INTRODUCTION Visceral adipose tissue-derived serine protease inhibitor (vaspin) is an adipokine. It has been reported that decreased serum vaspin levels are significantly associated with stroke severity and prognosis. PURPOSE This article aims to explore the theoretical feasibility of vaspin supplementation for cerebral ischemia-reperfusion (I/R) injury. METHODS The I/R mouse models were constructed by the middle cerebral artery occlusion (MCAO) method, and the effects of vaspin on cerebral infarction, neurological function, angiogenesis and endoplasmic reticulum (ER) stress were explored. To verify the mediation of ER stress in the regulation of vaspin, human brain microvascular endothelial cells (HBMECs) were subjected to ER stress agonist tunicamycin in vitro. The impacts of vaspin and tunicamycin on oxygen glucose deprivation/ recovery (OGD/R)-induced cell viability, apoptosis, and angiogenesis were examined. RESULTS Vaspin inhibited blood-brain barrier breakdown and infarction occurred in the brain tissue of the I/R mice. Vaspin also enhanced cerebral neovascularization and reduced the apoptosis. Additional tunicamycin increased the apoptosis of HBMECs and inhibited angiogenesis, reversing the protective effect of vaspin on cells. CONCLUSION Together, this study reveals that vaspin supplementation reduces cerebral infarction and works against neurological dysfunction. It maintains the survival and angiogenesis capacity of HBMECs by inhibiting ER stress.
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Affiliation(s)
- Wentao Yan
- Department of Stroke, Xuchang Central Hospital, Henan University of Science and Technology, Xuchang, Henan, China
| | - Xiuhua He
- Department of Cardiovascular Medicine, Xuchang Central Hospital, Henan University of Science and Technology, Xuchang, Henan, China
| | - Guanjun Wang
- Department of Neurosurgery, Xuchang Central Hospital, Henan University of Science and Technology, Xuchang, Henan, China
| | - Guochao Hu
- Department of Stroke, Xuchang Central Hospital, Henan University of Science and Technology, Xuchang, Henan, China
| | - Bin Cui
- Department of Neurosurgery, Aviation General Hospital, Beijing, China
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Yin S, Liu J, Zhao X, Dong H, Cao Y, Zhang S, Dong X, Zhang G, Jin S, Shi W, Xiang F, Gong J, Wang Z, Han B, Zhang N, Tan X, Wang Z. Chitosan oligosaccharide attenuates acute kidney injury and renal interstitial fibrosis induced by ischemia-reperfusion. Ren Fail 2023; 45:2238831. [PMID: 37482748 PMCID: PMC10367574 DOI: 10.1080/0886022x.2023.2238831] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023] Open
Abstract
Acute kidney injury (AKI) and renal interstitial fibrosis are global clinical syndromes associated with high morbidity and mortality. Renal ischemia-reperfusion (I/R) injury, which commonly occurs during surgery, is one of the major causes of AKI. Nevertheless, an efficient therapeutic approach for AKI and the development of renal interstitial fibrosis is still lacking due to its elusive pathogenetic mechanism. Here, we showed that chitosan oligosaccharide (COS), a natural oligomer polysaccharide degraded from chitosan, significantly attenuates I/R-induced AKI and maintains glomerular filtration function by inhibiting oxidative stress, mitochondrial damage, and excessive endoplasmic reticulum stress both in vitro and in vivo. In addition, long-term administration of COS can also attenuate the proliferation of myofibroblasts, mitigate extra cellular matrix deposition, and thus inhibit the transition of AKI to chronic kidney disease through participating in metabolic and redox biological processes. Our findings provide novel insights into the protective role of COS against acute kidney injury.
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Affiliation(s)
- Shulan Yin
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
| | - Jiane Liu
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, Qingdao, Shandong, China
| | - Xiangzhong Zhao
- Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Hanyu Dong
- Department of Endocrinology, Zibo Maternal and Child Health Care Hospital, Zibo, Shandong, China
| | - Yanjing Cao
- Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
| | - Sudan Zhang
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, Qingdao, Shandong, China
| | - Xiaolei Dong
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, Qingdao, Shandong, China
| | - Guangmin Zhang
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, Qingdao, Shandong, China
| | - Shengxi Jin
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, Qingdao, Shandong, China
| | - Weiping Shi
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Fenggang Xiang
- Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jizheng Gong
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, Qingdao, Shandong, China
| | - Ziyi Wang
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, Qingdao, Shandong, China
| | - Baoqin Han
- Laboratory for Marine Drugs and Bioproducts of Pilot National Laboratory for Marine Science and Technology, Ocean University of China, Qingdao, China
| | - Na Zhang
- Yantai Zhifu Baoshang Hemodialysis Center, Yantai, Shandong, China
| | - Xiaohua Tan
- Department of Pathology, School of Basic Medicine, Qingdao University, Qingdao, Shandong, China
| | - Zheng Wang
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
- Department of Genetics and Cell Biology, Basic Medical College, Qingdao University, Qingdao, Shandong, China
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Luo Q, Zheng J, Fan B, Liu J, Liao W, Zhang X. Enriched environment attenuates ferroptosis after cerebral ischemia/reperfusion injury by regulating iron metabolism. Brain Res Bull 2023; 203:110778. [PMID: 37812906 DOI: 10.1016/j.brainresbull.2023.110778] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/20/2023] [Accepted: 10/06/2023] [Indexed: 10/11/2023]
Abstract
Preventing neuronal death after ischemic stroke (IS) is crucial for neuroprotective treatment, yet current management options are limited. Enriched environment (EE) is an effective intervention strategy that promotes the recovery of neurological function after cerebral ischemia/reperfusion (I/R) injury. Ferroptosis has been identified as one of the mechanisms of neuronal death during IS, and inhibiting ferroptosis can reduce cerebral I/R injury. Our previous research has demonstrated that EE reduced ferroptosis by inhibiting lipid peroxidation, but the underlying mechanism still needs to be investigated. This study aims to explore the potential molecular mechanisms by which EE modulates iron metabolism to reduce ferroptosis. The experimental animals were randomly divided into four groups based on the housing environment and the procedure the animals received: the sham-operated + standard environment (SSE) group, the sham-operated + enriched environment (SEE) group, the ischemia/reperfusion + standard environment (ISE) group, and the ischemia/reperfusion + enriched environment (IEE) group. The results showed that EE reduced IL-6 expression during cerebral I/R injury, hence reducing JAK2-STAT3 pathway activation and hepcidin expression. Reduced hepcidin expression led to decreased DMT1 expression and increased FPN1 expression in neurons, resulting in lower neuronal iron levels and alleviated ferroptosis. In addition, EE also reduced the expression of TfR1 in neurons. Our research suggested that EE played a neuroprotective role by modulating iron metabolism and reducing neuronal ferroptosis after cerebral I/R injury, which might be achieved by inhibiting inflammatory response and down-regulating hepcidin expression.
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Affiliation(s)
- Qihang Luo
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jun Zheng
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Bin Fan
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jingying Liu
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Weijing Liao
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Xin Zhang
- Department of Rehabilitation Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.
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Wang Y, Pu M, Yan J, Zhang J, Wei H, Yu L, Yan X, He Z. 1,2-Bis(2-aminophenoxy)ethane- N, N, N', N'-tetraacetic Acid Acetoxymethyl Ester Loaded Reactive Oxygen Species Responsive Hyaluronic Acid-Bilirubin Nanoparticles for Acute Kidney Injury Therapy via Alleviating Calcium Overload Mediated Endoplasmic Reticulum Stress. ACS Nano 2023; 17:472-491. [PMID: 36574627 DOI: 10.1021/acsnano.2c08982] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Calcium overload is one of the early determinants of the core cellular events that contribute to the pathogenesis of acute kidney injury (AKI), which include oxidative stress, ATP depletion, calcium overload, and inflammatory response with self-amplifying and interactive feedback loops that ultimately lead to cellular injury and renal failure. Excluding adjuvant therapy, there are currently no approved pharmacotherapies for the treatment of AKI. Using an adipic dihydride linker, we modified the hyaluronic acid polymer chain with a potent antioxidant, bilirubin, to produce an amphiphilic conjugate. Subsequently, we developed a kidney-targeted and reactive oxygen species (ROS)-responsive drug delivery system based on the flash nanocomplexation method to deliver a well-known intracellular calcium chelator, 1,2-bis(2-aminophenoxy)ethane-N,N,N',N'-tetraacetic acid acetoxymethyl ester (BAPTA-AM, BA), with the goal of rescuing renal cell damage via rapidly scavenging of intracellularly overloaded Ca2+. In the ischemia-reperfusion (I/R) induced AKI rat model, a single dose of as-prepared formulation (BA 100 μg·kg-1) 6 h post-reperfusion significantly reduced renal function indicators by more than 60% within 12 h, significantly alleviated tissular pathological changes, ameliorated tissular oxidative damage, significantly inhibited apoptosis of renal tubular cells and the expression of renal tubular marker kidney injury molecule 1, etc., thus greatly reducing the risk of kidney failure. Mechanistically, the treatment with BA-loaded NPs significantly inhibited the activation of the ER stress cascade response (IRE1-TRAF2-JNK, ATF4-CHOP, and ATF6 axis) and regulated the downstream apoptosis-related pathway while also reducing the inflammatory response. The BA-loaded NPs hold great promise as a potential therapy for I/R injury-related diseases.
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Affiliation(s)
- Yanan Wang
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Minju Pu
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Jiahui Yan
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Jingwen Zhang
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Huichao Wei
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Liangmin Yu
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Xuefeng Yan
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
| | - Zhiyu He
- Frontiers Science Center for Deep Ocean Multispheres and Earth Systems, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao266003, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao266003, China
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Sun S, Yu W, Xu H, Li C, Zou R, Wu NN, Wang L, Ge J, Ren J, Zhang Y. TBC1D15-Drp1 interaction-mediated mitochondrial homeostasis confers cardioprotection against myocardial ischemia/reperfusion injury. Metabolism 2022; 134:155239. [PMID: 35680100 DOI: 10.1016/j.metabol.2022.155239] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 01/14/2022] [Revised: 05/17/2022] [Accepted: 06/03/2022] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Mitochondria are essential for myocardial ischemia/reperfusion (I/R) injury. TBC domain family member 15 (TBC1D15) participates in the regulation of mitochondrial homeostasis although its role remains elusive in I/R injury. METHODS AND MATERIALS This study examined the role of TBC1D15 in mitochondrial homeostasis under myocardial I/R injury using inducible cardiac-specific TBC1D15 knockin (TBC1D15CKI) and knockout (TBC1D15CKO) mice. RESULTS TBC1D15 mRNA/protein levels were downregulated in human ischemic cardiomyopathy samples, mouse I/R hearts and neonatal mouse cardiomyocytes with H/R injury, consistent with scRNA sequencing finding from patients with coronary heart disease. Cardiac-specific knockin of TBC1D15 attenuated whereas cardiac-specific knockout of TBC1D15 overtly aggravated I/R-induced cardiomyocyte apoptosis and cardiac dysfunction. TBC1D15CKI mice exhibited reduced mitochondrial damage and mitochondrial fragmentation following myocardial I/R injury, while TBC1D15CKO mice displayed opposite results. TBC1D15 preserved mitochondrial function evidenced by safeguarding MMP and oxygen consumption capacity, antagonizing ROS accumulation and cytochrome C release, which were nullified by TBC1D15 knockdown. Time-lapse confocal microscopy revealed that TBC1D15 activated asymmetrical mitochondrial fission through promoting mitochondria-lysosome contacts untethering in NMCMs under H/R injury, whereas overexpression of TBC1D15 mutants (R400K and ∆231-240) failed to regulate asymmetrical fission and knockdown of TBC1D15 slowed down asymmetrical fission. Moreover, TBC1D15-offered benefits were mitigated by knockdown of Fis1 and Drp1. Mechanistically, TBC1D15 recruited Drp1 to mitochondria-lysosome contact sites via direct interaction with Drp1 through its C terminus (574-624) domain. Interfering with interaction between TBC1D15 and Drp1 abrogated asymmetrical mitochondrial fission and mitochondrial function. Cardiac phenotypes of TBC1D15CKO mice upon I/R injury were rescued by adenovirus-mediated overexpression of wild-type but not mutants (R400K, ∆231-240 and ∆574-624) TBC1D15. CONCLUSIONS TBC1D15 ameliorated I/R injury through a novel modality to preserve mitochondrial homeostasis where mitochondria-lysosome contacts (through the TBC1D15/Fis1/RAB7 cascade) regulate asymmetrical mitochondrial fission (TBC1D15/Drp1 interaction), suggesting promises of targeting TBC1D15 in the management of myocardial I/R injury.
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Affiliation(s)
- Shiqun Sun
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wenjun Yu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Cardiovascular Surgery, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Haixia Xu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Cardiology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Congye Li
- Department of Cardiology, Xijing Hospital, the Air Force Military Medical University, Xi'an 710038, China
| | - Rongjun Zou
- Heart Center, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, China
| | - Ne N Wu
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Li Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Junbo Ge
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jun Ren
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China; Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA 98195, USA.
| | - Yingmei Zhang
- Department of Cardiology and Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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Shi L, Gao X, Bi Y, Li M, Sun H, Tian X, Bi W. Gli ko BMSC: A potential strategy of treatment for renal fibrosis. Regen Ther 2022; 20:157-164. [PMID: 35620638 PMCID: PMC9111922 DOI: 10.1016/j.reth.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/27/2022] [Accepted: 04/07/2022] [Indexed: 11/28/2022] Open
Abstract
Objective There are many researches on using bone marrow mesenchymal stem cells (BMSCs) in the treatment of acute kidney injury (AKI), which has certain effects, but the mechanism of action is still unclear. Previous researches show that glioma-associated oncogene homolog 1 (Gli 1) can promote the proliferation and migration of cells, which can also promote renal fibrosis. Therefore, we investigate the influence of Gli-regulated BMSCs on repairing AKI and renal fibrosis induced by limb Ischemia-Reperfusion (I/R). Methods The Crispr-Cas9 technique was adopted to knock out the Gli1 gene from the mouse BMSCs according to green fluorescent tracing, and the BMSCs (BMSCs-Gliko) with Gli1 gene knocked out and the BMSCs as control group were obtained. The cell proliferation, apoptosis, cycle and SHH signal pathway gene level were tested. The mice were built to the AKI model with inducing I/R injury, then the BMSCs-Gliko and BMSCs cells were injected into the mice, and their IL-1, IL-1B, TNF-a, serum creatinine (Scr) and blood urea nitrogen (BUN) levels were tested; Western blot was employed to test the expression of α-SMA, SMAD2 and SMAD4 in the renal tissues of mice. Finally, flow cytometry was used to test the content of BMSCs containing green fluorescence in the blood of mice. Results The BMSCs-Gliko containing green fluorescence and the mouse AKI model were built; both BMSCs and BMSCs-Gliko can reduce the damage level, and BMSCs-Gliko outperformed BMSCs in protecting renal tubules and anti-fibrosis. Our study also shows that BMSCs-Gliko stayed longer in the blood of mice, which might also be one of the reasons why BMSCs-Gliko outperformed BMSCs in preventing renal tubules and fibrosis. To sum it up, could be key target of using.
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Affiliation(s)
- Long Shi
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, China
| | - Xiang Gao
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, China
| | - Yue Bi
- Department of Neurosurgery, The Second Hospital of Hebei Medical University, China
| | - Meng Li
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, China
| | - Huanhuan Sun
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, China
| | - Xiaochao Tian
- Department of Cardiology, The Second Hospital of Hebei Medical University, China
| | - Wei Bi
- Department of Vascular Surgery, The Second Hospital of Hebei Medical University, China
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8
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Chen C, Zhang H, Xie R, Wang Y, Ma Y. Gut microbiota aggravate cardiac ischemia-reperfusion injury via regulating the formation of neutrophils extracellular traps. Life Sci 2022; 303:120670. [PMID: 35640777 DOI: 10.1016/j.lfs.2022.120670] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 05/24/2022] [Accepted: 05/24/2022] [Indexed: 02/06/2023]
Abstract
AIMS Myocardial infarction (MI) is a leading cause of death worldwide for which there is no cure. Percutaneous coronary intervention (PCI) can restore blood supply in a timely manner, which greatly reduces the mortality of patients, but ischemia/reperfusion (I/R) injury is inevitable. A number of clinical studies have shown that gut microbiota play an essential role in cardiovascular diseases. This study aims to explore the mechanism of gut microbiota to limit I/R injury. MATERIALS AND METHODS This study adopted the myocardial I/R model using gut microbiota clearance mice, neutrophil clearance mice and double-scavenging mice, and explored the relationship between gut microbiota and NETs during I/R injury. Neutrophils were isolated in vitro to explore the effect of NETs on myocardial cell injury and its molecular mechanism. KEY FINDINGS Gut microbiota aggravate cardiac I/R injury via regulating the formation of NETs. The migration of gut microbiota to blood stimulated the formation of NETs after cardiac I/R. NETs, which can directly lead to apoptosis of myocardial cells and myocardial microvascular endothelial cells. The time point of NETs formation in tissue and blood after I/R were determined by experiments. SIGNIFICANCE It was confirmed that gut microbiota participates in cardiac I/R injury by regulating the formation of NETs, which reveals a new mechanism of I/R injury and provides a new potential target for the treatment of I/R injury.
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Affiliation(s)
- Chunxia Chen
- Joint National Laboratory for Antibody Drug Engineering, the First Affiliated Hospital, Henan University, Kaifeng 475004, PR China
| | - Hao Zhang
- Joint National Laboratory for Antibody Drug Engineering, the First Affiliated Hospital, Henan University, Kaifeng 475004, PR China
| | - Ran Xie
- Joint National Laboratory for Antibody Drug Engineering, the First Affiliated Hospital, Henan University, Kaifeng 475004, PR China
| | - Yaohui Wang
- Joint National Laboratory for Antibody Drug Engineering, the First Affiliated Hospital, Henan University, Kaifeng 475004, PR China.
| | - Yuanfang Ma
- Joint National Laboratory for Antibody Drug Engineering, the First Affiliated Hospital, Henan University, Kaifeng 475004, PR China.
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9
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Liu Z, Li Y, Li C, Yu L, Chang Y, Qu M. Delivery of coenzyme Q10 with mitochondria-targeted nanocarrier attenuates renal ischemia-reperfusion injury in mice. Mater Sci Eng C Mater Biol Appl 2021; 131:112536. [PMID: 34857313 DOI: 10.1016/j.msec.2021.112536] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 10/18/2021] [Accepted: 11/02/2021] [Indexed: 10/19/2022]
Abstract
Ischemia-reperfusion (I/R) injury causes high morbidity, mortality, and healthcare costs. I/R induces acute kidney injury through exacerbating the mitochondrial damage and increasing inflammatory and oxidative responses. Here, we developed the mitochondria-targeted nanocarrier to delivery of Coenzyme Q10 (CoQ10) for renal I/R treatment in animal model. The mitochondria-targeted TPP CoQ10 nanoparticles (T-NPCoQ10) were synthesized through ABC miktoarm polymers method and characterized by dynamic light scattering (DLS) and transmission electron microscopy (TEM). The I/R mouse model and oxygen-glucose deprivation/reperfusion (D/R) model were created to examine the role of T-NPCoQ10 on renal I/R. Mitochondrial DNA damage, apoptosis, and inflammatory cytokines were measured in I/R injury mice. Plasma creatinine, urea nitrogen, tubular injury score was tested to assess the renal function. T-NPCoQ10 nanoparticles could be delivered to renal mitochondria preciously and efficiently. T-NPCoQ10 administration attenuated oxidative injury in both cell and animal models significantly, alleviated mtDNA damage, suppressed inflammatory and apoptotic responses, and improved renal function. The mitochondria specific CoQ10 delivery provided a precious and efficient method for protecting inflammatory and oxidative responses of I/R-induced renal damage.
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Affiliation(s)
- Zhaohui Liu
- Department of Anesthesiology, Cangzhou Central Hospital, Teaching Hospital of Tianjin Medical University, Cangzhou 061000, Hebei, China.
| | - Yan Li
- Department of Anesthesiology, Cangzhou Central Hospital, Teaching Hospital of Tianjin Medical University, Cangzhou 061000, Hebei, China
| | - Chunlei Li
- Department of Anesthesiology, Cangzhou Central Hospital, Teaching Hospital of Tianjin Medical University, Cangzhou 061000, Hebei, China
| | - Lili Yu
- Department of Anesthesiology, Cangzhou Central Hospital, Teaching Hospital of Tianjin Medical University, Cangzhou 061000, Hebei, China
| | - Yulin Chang
- Department of Anesthesiology, Cangzhou Central Hospital, Teaching Hospital of Tianjin Medical University, Cangzhou 061000, Hebei, China
| | - Min Qu
- Department of Anesthesiology, Cangzhou Central Hospital, Teaching Hospital of Tianjin Medical University, Cangzhou 061000, Hebei, China
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10
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Wang X, Xu Q, Wang S. Overexpression of miR-149-5p Attenuates Cerebral Ischemia/Reperfusion (I/R) Injury by Targeting Notch2. Neuromolecular Med 2021. [PMID: 34581980 DOI: 10.1007/s12017-021-08685-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 08/04/2021] [Indexed: 10/20/2022]
Abstract
Ischemic stroke is one of the leading causes of death and disability worldwide. Although miR-149-5p downregulation is observed in rats after ischemia/reperfusion (I/R) injury, its function and role in ischemic stroke remain unclear. This study aimed to investigate the roles of miR-149-5p in I/R injury. The results showed that miR-149-5p was significantly downregulated in brain tissues of rats subjected to middle cerebral artery occlusion (MCAO) and primary cortical neurons subject to oxygen and glucose deprivation (OGD). MiR-149-5p overexpression effectively reduced MCAO/R-induced infarct volume, neurological score, and brain water content as well as OGD/R-induced cortical neurons apoptosis and OGD/R-induced expression of TNF-α, IL-4, IL-6, IL-1β, and COX-2. Moreover, Notch2 was identified as a target of miR-149-5p and Notch2 overexpression significantly attenuated the inhibitory effects of miR-149-5p mimics on inflammation and apoptosis. Taken together, our study revealed that miR-149-5p overexpression protects the rat brain against I/R injury by regulating Notch2-mediated inflammation and apoptosis pathway.
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11
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Lee CY, Lee S, Jeong S, Lee J, Seo HH, Shin S, Park JH, Song BW, Kim IK, Choi JW, Kim SW, Han G, Lim S, Hwang KC. Suppressing Pyroptosis Augments Post-Transplant Survival of Stem Cells and Cardiac Function Following Ischemic Injury. Int J Mol Sci 2021; 22:7946. [PMID: 34360711 DOI: 10.3390/ijms22157946] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/20/2021] [Accepted: 07/20/2021] [Indexed: 12/11/2022] Open
Abstract
The acute demise of stem cells following transplantation significantly compromises the efficacy of stem cell-based cell therapeutics for infarcted hearts. As the stem cells transplanted into the damaged heart are readily exposed to the hostile environment, it can be assumed that the acute death of the transplanted stem cells is also inflicted by the same environmental cues that caused massive death of the host cardiac cells. Pyroptosis, a highly inflammatory form of programmed cell death, has been added to the list of important cell death mechanisms in the damaged heart. However, unlike the well-established cell death mechanisms such as necrosis or apoptosis, the exact role and significance of pyroptosis in the acute death of transplanted stem cells have not been explored in depth. In the present study, we found that M1 macrophages mediate the pyroptosis in the ischemia/reperfusion (I/R) injured hearts and identified miRNA-762 as an important regulator of interleukin 1β production and subsequent pyroptosis. Delivery of exogenous miRNA-762 prior to transplantation significantly increased the post-transplant survival of stem cells and also significantly ameliorated cardiac fibrosis and heart functions following I/R injury. Our data strongly suggest that suppressing pyroptosis can be an effective adjuvant strategy to enhance the efficacy of stem cell-based therapeutics for diseased hearts.
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12
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Cissom C, J Paris J, Shariat-Madar Z. Dynorphins in Development and Disease: Implications for Cardiovascular Disease. Curr Mol Med 2021; 20:259-274. [PMID: 31746302 DOI: 10.2174/1566524019666191028122559] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/18/2019] [Accepted: 10/18/2019] [Indexed: 12/12/2022]
Abstract
It is well-established that cardiovascular disease continues to represent a growing health problem and significant effort has been made to elucidate the underlying mechanisms. In this review, we report on past and recent high impact publications in the field of intracrine network signaling, focusing specifically on opioids and their interrelation with key modulators of the cardiovascular system and the onset of related disease. We present an overview of studies outlining the scope of cardiovascular and cerebrovascular processes that are affected by opioids, including heart function, ischemia, reperfusion, and blood flow. Specific emphasis is placed on the importance of dynorphin molecules in cerebrovascular and cardiovascular regulation. Evidence suggests that excessive or insufficient dynorphin could make an important contribution to cardiovascular physiology, yet numerous paradoxical observations frequently impede a clear understanding of the role of dynorphin. Thus, we argue that dynorphin-mediated signaling events for which an immediate regulatory effect is disputed should not be dismissed as unimportant, as they may play a role in cross-talk with other signaling networks. Finally, we consider the most recent evidence on the role of dynorphin during cardiovascular-related inflammation and on the potential value of endogenous and exogenous inhibitors of kappa-opioid receptor, a major dynorphin A receptor, to limit or prevent cardiovascular disease and its related sequelae.
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Affiliation(s)
- Cody Cissom
- William Carey College of Osteopathic Mississippi University, Medical School, Hattiesburg, Mississippi, United States
| | - Jason J Paris
- Department of Biomolecular Sciences, Division of Pharmacology, University of Mississippi, United States.,The National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, University of Mississippi, United States
| | - Zia Shariat-Madar
- Department of Biomolecular Sciences, Division of Pharmacology, University of Mississippi, United States.,The National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, University of Mississippi, United States.,Light Microscopy Core, University of Mississippi, University, Mississippi, United States
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13
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Yang Y, Jiang K, Liu X, Qin M, Xiang Y. CaMKII in Regulation of Cell Death During Myocardial Reperfusion Injury. Front Mol Biosci 2021; 8:668129. [PMID: 34141722 PMCID: PMC8204011 DOI: 10.3389/fmolb.2021.668129] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/10/2021] [Indexed: 12/11/2022] Open
Abstract
Cardiovascular disease is the leading cause of death worldwide. In spite of the mature managements of myocardial infarction (MI), post-MI reperfusion (I/R) injury results in high morbidity and mortality. Cardiomyocyte Ca2+ overload is a major factor of I/R injury, initiating a cascade of events contributing to cardiomyocyte death and myocardial dysfunction. Ca2+/calmodulin-dependent protein kinase II (CaMKII) plays a critical role in cardiomyocyte death response to I/R injury, whose activation is a key feature of myocardial I/R in causing intracellular mitochondrial swelling, endoplasmic reticulum (ER) Ca2+ leakage, abnormal myofilament contraction, and other adverse reactions. CaMKII is a multifunctional serine/threonine protein kinase, and CaMKIIδ, the dominant subtype in heart, has been widely studied in the activation, location, and related pathways of cardiomyocytes death, which has been considered as a potential targets for pharmacological inhibition. In this review, we summarize a brief overview of CaMKII with various posttranslational modifications and its properties in myocardial I/R injury. We focus on the molecular mechanism of CaMKII involved in regulation of cell death induced by myocardial I/R including necroptosis and pyroptosis of cardiomyocyte. Finally, we highlight that targeting CaMKII modifications and cell death involved pathways may provide new insights to understand the conversion of cardiomyocyte fate in the setting of myocardial I/R injury.
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Affiliation(s)
- Yingjie Yang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Kai Jiang
- Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Xu Liu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Mu Qin
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yaozu Xiang
- Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
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14
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Clemente-Moragón A, Gómez M, Villena-Gutiérrez R, Lalama DV, García-Prieto J, Martínez F, Sánchez-Cabo F, Fuster V, Oliver E, Ibáñez B. Metoprolol exerts a non-class effect against ischaemia-reperfusion injury by abrogating exacerbated inflammation. Eur Heart J 2021; 41:4425-4440. [PMID: 33026079 PMCID: PMC7752252 DOI: 10.1093/eurheartj/ehaa733] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 07/11/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023] Open
Abstract
Aims Clinical guidelines recommend early intravenous β-blockers during ongoing myocardial infarction; however, it is unknown whether all β-blockers exert a similar cardioprotective effect. We experimentally compared three clinically approved intravenous β-blockers. Methods and results Mice undergoing 45 min/24 h ischaemia–reperfusion (I/R) received vehicle, metoprolol, atenolol, or propranolol at min 35. The effect on neutrophil infiltration was tested in three models of exacerbated inflammation. Neutrophil migration was evaluated in vitro and in vivo by intravital microscopy. The effect of β-blockers on the conformation of the β1 adrenergic receptor was studied in silico. Of the tested β-blockers, only metoprolol ameliorated I/R injury [infarct size (IS) = 18.0% ± 0.03% for metoprolol vs. 35.9% ± 0.03% for vehicle; P < 0.01]. Atenolol and propranolol had no effect on IS. In the three exacerbated inflammation models, neutrophil infiltration was significantly attenuated only in the presence of metoprolol (60%, 50%, and 70% reductions vs. vehicle in myocardial I/R injury, thioglycolate-induced peritonitis, and lipopolysaccharide-induced acute lung injury, respectively). Migration studies confirmed the particular ability of metoprolol to disrupt neutrophil dynamics. In silico analysis indicated different intracellular β1 adrenergic receptor conformational changes when bound to metoprolol than to the other two β-blockers. Conclusions Metoprolol exerts a disruptive action on neutrophil dynamics during exacerbated inflammation, resulting in an infarct-limiting effect not observed with atenolol or propranolol. The differential effect of β-blockers may be related to distinct conformational changes in the β1 adrenergic receptor upon metoprolol binding. If these data are confirmed in a clinical trial, metoprolol should become the intravenous β-blocker of choice for patients with ongoing infarction. ![]()
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Affiliation(s)
- Agustín Clemente-Moragón
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain
| | - Mónica Gómez
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain
| | - Rocío Villena-Gutiérrez
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain
| | - Doménica V Lalama
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain
| | - Jaime García-Prieto
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, C/ Monforte de Lemos 3-5. Pabellón 11. Planta 0 28029 Madrid, Spain
| | - Fernando Martínez
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, C/ Monforte de Lemos 3-5. Pabellón 11. Planta 0 28029 Madrid, Spain
| | - Fátima Sánchez-Cabo
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain
| | - Valentín Fuster
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain.,Division of Cardiology, Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicina at Mount Sinai School, 1 Gustave L. Levy Place. 10029-5674 New York, NY, USA
| | - Eduardo Oliver
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, C/ Monforte de Lemos 3-5. Pabellón 11. Planta 0 28029 Madrid, Spain
| | - Borja Ibáñez
- Myocardial Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), c/Melchor Fernandez Almagro, 3. 28029 Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Instituto de Salud Carlos III, C/ Monforte de Lemos 3-5. Pabellón 11. Planta 0 28029 Madrid, Spain.,Department of Cardiology, Instituto de Investigación Sanitaria (IIS)-Fundación Jiménez Díaz, Calle Isaac Peral, 42. 28015 Madrid, Spain
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15
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Wang J, Zhang J, Ma Y, Zeng Y, Lu C, Yang F, Jiang N, Zhang X, Wang Y, Xu Y, Hou H, Jiang S, Zhuang S. WTAP promotes myocardial ischemia/reperfusion injury by increasing endoplasmic reticulum stress via regulating m 6A modification of ATF4 mRNA. Aging (Albany NY) 2021; 13:11135-11149. [PMID: 33819187 PMCID: PMC8109143 DOI: 10.18632/aging.202770] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Accepted: 02/03/2021] [Indexed: 12/19/2022]
Abstract
Myocardial infarction (MI) is one of the leading causes of death. Wilms' tumor 1-associating protein (WTAP), one of the components of the m6A methyltransferase complex, has been shown to affect gene expression via regulating mRNA modification. Although WTAP has been implicated in various diseases, its role in MI is unclear. In this study, we found that hypoxia/reoxygenation (H/R) time-dependently increased WTAP expression, which in turn promoted endoplasmic reticulum (ER) stress and apoptosis, in human cardiomyocytes (AC16). H/R effects on ER stress and apoptosis were all blocked by silencing of WTAP, promoted by WTAP overexpression, and ameliorated by administration of ER stress inhibitor, 4-PBA. We then investigated the underlying molecular mechanism and found that WTAP affected m6A methylation of ATF4 mRNA to regulate its expression, and that the inhibitory effects of WTAP on ER stress and apoptosis were ATF4 dependent. Finally, WTAP’s effects on myocardial I/R injury were confirmed in vivo. WTAP promoted myocardial I/R injury through promoting ER stress and cell apoptosis by regulating m6A modification of ATF4 mRNA. These findings highlight the importance of WTAP in I/R injury and provide new insights into therapeutic strategies for MI.
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Affiliation(s)
- Jiayi Wang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Jiehan Zhang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Yan Ma
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Yuxiao Zeng
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Cheng Lu
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Fenghua Yang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Nianxin Jiang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Xuan Zhang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Yuhua Wang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Yinghui Xu
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Hanjing Hou
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Shengyang Jiang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
| | - Shaowei Zhuang
- Department of Cardiology, Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai 200137, China
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16
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Liu Y, Wang M, Wang D, Fay WP, Korthuis RJ, Sowa G. Elevated postischemic tissue injury and leukocyte-endothelial adhesive interactions in mice with global deficiency in caveolin-2: role of PAI-1. Am J Physiol Heart Circ Physiol 2021; 320:H1185-H1198. [PMID: 33416452 PMCID: PMC8362680 DOI: 10.1152/ajpheart.00682.2020] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 01/14/2021] [Accepted: 01/15/2021] [Indexed: 01/13/2023]
Abstract
Ischemia/reperfusion (I/R)-induced rapid inflammation involving activation of leukocyte-endothelial adhesive interactions and leukocyte infiltration into tissues is a major contributor to postischemic tissue injury. However, the molecular mediators involved in this pathological process are not fully known. We have previously reported that caveolin-2 (Cav-2), a protein component of plasma membrane caveolae, regulated leukocyte infiltration in mouse lung carcinoma tumors. The goal of the current study was to examine if Cav-2 plays a role in I/R injury and associated acute leukocyte-mediated inflammation. Using a mouse small intestinal I/R model, we demonstrated that I/R downregulates Cav-2 protein levels in the small bowel. Further study using Cav-2-deficient mice revealed aggravated postischemic tissue injury determined by scoring of villi length in H&E-stained tissue sections, which correlated with increased numbers of MPO-positive tissue-infiltrating leukocytes determined by IHC staining. Intravital microscopic analysis of upstream events relative to leukocyte transmigration and tissue infiltration revealed that leukocyte-endothelial cell adhesive interactions in postcapillary venules, namely leukocyte rolling and adhesion were also enhanced in Cav-2-deficient mice. Mechanistically, Cav-2 deficiency increased plasminogen activator inhibitor-1 (PAI-1) protein levels in the intestinal tissue and a pharmacological inhibition of PAI-1 had overall greater inhibitory effect on both aggravated I/R tissue injury and enhanced leukocyte-endothelial interactions in postcapillary venules in Cav-2-deficient mice. In conclusion, our data suggest that Cav-2 protein alleviates tissue injury in response to I/R by dampening PAI-1 protein levels and thereby reducing leukocyte-endothelial adhesive interactions.NEW & NOTEWORTHY The role of caveolin-2 in regulating ischemia/reperfusion (I/R) tissue injury and the mechanisms underlying its effects are unknown. This study uses caveolin-2-deficient mouse and small intestinal I/R injury models to examine the role of caveolin-2 in the leukocyte-dependent reperfusion injury. We demonstrate for the first time that caveolin-2 plays a protective role from the I/R-induced leukocyte-dependent reperfusion injury by reducing PAI-1 protein levels in intestinal tissue and leukocyte-endothelial adhesive interactions in postcapillary venules.
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Affiliation(s)
- Yajun Liu
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Meifang Wang
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - Derek Wang
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
| | - William P Fay
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
- Department of Medicine, University of Missouri, Columbia, Missouri
| | - Ronald J Korthuis
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
- The Dalton Cardiovascular Research Center, University of Missouri, Columbia, Missouri
| | - Grzegorz Sowa
- Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri
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Mammucari C. In the right place at the right time: ROS and Ca 2+ are allies in the battle for survival. Cell Calcium 2021; 95:102354. [PMID: 33581406 DOI: 10.1016/j.ceca.2021.102354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/05/2021] [Accepted: 01/05/2021] [Indexed: 11/21/2022]
Abstract
Both Ca2+ and reactive oxygen species (ROS) are double face entities, acting as signaling messengers or cell fate determinants according to their concentration and to spatial temporal restrictions. Recently, Beretta and colleagues found that ROS generated at ER-mitochondria contact sites (MAMs) support cell survival in stress conditions by decreasing inter-organelle Ca2+ transfer.
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18
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Xue T, Sun Q, Zhang Y, Wu X, Shen H, Li X, Wu J, Li H, Wang Z, Chen G. Phosphorylation at S548 as a Functional Switch of Sterile Alpha and TIR Motif-Containing 1 in Cerebral Ischemia/Reperfusion Injury in Rats. Mol Neurobiol 2021; 58:453-469. [PMID: 32968873 DOI: 10.1007/s12035-020-02132-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 09/14/2020] [Indexed: 12/18/2022]
Abstract
Sterile alpha and Toll/interleukin-1 receptor motif-containing 1 (SARM1) is a pro-degenerative molecule in Wallerian degeneration, which is mainly expressed in brain/neurons and colocalized with mitochondria and microtubules. The aim of this study was to determine the role of SARM1 in cerebral ischemia/reperfusion (I/R) injury and the underlying mechanisms. In vivo, a middle cerebral artery occlusion/reperfusion (MCAO/R) model in adult male Sprague Dawley rats (250-300 g) was established, and in vitro, cultured primary neurons were subjected to oxygen-glucose deprivation/reoxygenation (OGD/R) to imitate I/R injury. Overexpression lentiviruses encoding wild-type SARM1 and SARM1 with serine 548 alanine mutation (S548A) were constructed and administered to rats by intra-penumbral injection. First, the potential role of SARM1 in cerebral I/R injury was confirmed by the increased protein levels of SARM1 within penumbra tissue, especially in neurons. Second, there was an increase in the phosphorylation ratio of p-SARM1(S548)/SARM1 at 2 h after MCAO/R. Third, on the basis of site-specific mutagenesis, we identified S548 as a key site for SARM1 phosphorylation in I/R conditions. Fourth, SARM1 (S548A) overexpression reduced infarct size, neuronal death, and neurobehavioral dysfunction, while wild-type SARM1 overexpression had the opposite effects. Finally, we found that SARM1 phosphorylation at the S548 site switched SARM1 function from promoting mitochondrial transport to inhibiting mitochondrial transport along axons after I/R injury. Restriction of SARM1 phosphorylation at S548 may be a promising intervention target for I/R injury; thus, exogenous administration of SARM1 (S548A) may be a novel strategy for improving neurological outcomes.
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Affiliation(s)
- Tao Xue
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Qing Sun
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Yijie Zhang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Xin Wu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Haitao Shen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Xiang Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Jiang Wu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
| | - Haiying Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China.
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China.
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China
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Xie LH, Gwathmey JK, Zhao Z. Cardiac adaptation and cardioprotection against arrhythmias and ischemia-reperfusion injury in mammalian hibernators. Pflugers Arch 2021; 473:407-416. [PMID: 33394082 DOI: 10.1007/s00424-020-02511-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/04/2020] [Accepted: 12/23/2020] [Indexed: 12/15/2022]
Abstract
Hibernation allows animals to enter an energy conserving state to survive severe drops in external temperatures and a shortage of food. It has been observed that the hearts of mammalian hibernators exhibit intrinsic protection against ischemia-reperfusion (I/R) injury and cardiac arrhythmias in the winter whether they are hibernating or not. However, the molecular and ionic mechanisms for cardioprotection in mammalian hibernators remain elusive. Recent studies in woodchucks (Marmota monax) have suggested that cardiac adaptation occurs at different levels and mediates an intrinsic cardioprotection prior to/in the winter. The molecular/cellular remodeling in the winter (with or without hibernation) includes (1) an upregulation of transcriptional factor, anti-apoptotic factor, nitric oxide synthase, protein kinase C-ε, and phosphatidylinositol-4,5-bisphosphate 3-kinase; (2) an upregulation of antioxidant enzymes (e.g. superoxide dismutase and catalase); (3) a reduction in the oxidation level of Ca2+/calmodulin-dependent protein kinase II (CaMKII); and (4) alterations in the expression and activity of multiple ion channels/transporters. Therefore, the cardioprotection against I/R injury in the winter is most likely mediated by enhancement in signaling pathways that are shared by preconditioning, reduced cell apoptosis, and increased detoxification of reactive oxygen species (ROS). The resistance to cardiac arrhythmias and sudden cardiac death in the winter is closely associated with an upregulation of the antioxidant catalase and a downregulation of CaMKII activation. This remodeling of the heart is associated with a reduction in the incidence of afterdepolarizations and triggered activities. In this short review article, we will discuss the seasonal changes in gene and protein expression profiles as well as alterations in the function of key proteins that are associated with the occurrence of cardioprotection against myocardial damage from ischemic events and fatal arrhythmias in a mammalian hibernator. Understanding the intrinsic cardiac adaptive mechanisms that confer cardioprotection in hibernators may offer new strategies to protect non-hibernating animals, especially humans, from I/R injury and ischemia-induced fatal cardiac arrhythmias.
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Affiliation(s)
- Lai-Hua Xie
- Department of Cell Biology and Molecular Medicine, Rutgers-New Jersey Medical School, Newark, NJ, 07103, USA.
| | - Judith K Gwathmey
- Department of Cell Biology and Molecular Medicine, Rutgers-New Jersey Medical School, Newark, NJ, 07103, USA
| | - Zhenghang Zhao
- Department of Pharmacology, School of Medicine, Xi'an Jiaotong University, Xi'an, 710061, China
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20
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Cheng L, Wu Y, Tang J, Zhang C, Cheng H, Jiang Q, Jian C. Remifentanil protects against myocardial ischemia/reperfusion injury via miR-205-mediated regulation of PINK1. J Toxicol Sci 2021. [PMID: 34078833 DOI: 10.2131/jts.46.263.pubmed:34078833] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Myocardial ischemia/reperfusion (I/R) injury could lead to severe cardiovascular ischemic disease, including myocardial infarction and contractile dysfunction. Remifentanil demonstrated protective effect on myocardial I/R injury. The underlying pathophysiological mechanism was then investigated in this study. In the current study, primary cardiomyocytes were isolated from rats, and then preconditioned with remifentanil. Rats, tail vein injected with miR-205 antagomir, were subjected to infusion of remifentanil, and then subjected to regional ischemia followed by reperfusion. The results demonstrated that cell viability of hypoxia/reoxygenation-induced cardiomyocytes was increased post remifentanil, while the apoptosis was decreased accompanied with reduced cleaved caspase-3 expression. Hypoxia/reoxygenation treatment increased miR-205 and decreased PINK1 (PTEN induced putative kinase 1) expression. However, preconditioning with remifentanil reduced miR-205 and enhanced PINK1. Moreover, over-expression of miR-205 decreased PINK1 expression and counteracted the effects of remifentanil-induced increase of cell viability and decrease of cell apoptosis in hypoxia/reoxygenation-induced cardiomyocytes. Injection with miR-205 antagomir improved remifentanil-induced decrease of infarct size and LDH (lactic acid dehydrogenase) activity in rat model with I/R injury. In conclusion, miR-205 might participate in the protective effect of remifentanil in rat myocardial I/R injury via regulation of PINK1, providing a potential target for amelioration of cardiovascular ischemic disease.
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Affiliation(s)
- Lu Cheng
- Department of Cardiovascular Internal Medicine, The Affiliated Cardiovascular Hospital of Qindao University, China
| | - Yifan Wu
- Department of Cardiovascular Internal Medicine, Central People's Hospital of Zhanjiang, China
| | - Jiayu Tang
- Department of Medical Laboratory, Central People's Hospital of Zhanjiang, China
| | - Chao Zhang
- Department of Cardiovascular Internal Medicine, The Affiliated Cardiovascular Hospital of Qindao University, China
| | - Huan Cheng
- Department of Uitrasound, The Affiliated Hospital of Qindao University, China
| | - Qi Jiang
- Department of Cardiovascular Internal Medicine, The Affiliated Cardiovascular Hospital of Qindao University, China
| | - Chunyan Jian
- Department of Cardiovascular Internal Medicine, Central People's Hospital of Zhanjiang, China
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21
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Cheng L, Wu Y, Tang J, Zhang C, Cheng H, Jiang Q, Jian C. Remifentanil protects against myocardial ischemia/reperfusion injury via miR-205-mediated regulation of PINK1. J Toxicol Sci 2021; 46:263-271. [PMID: 34078833 DOI: 10.2131/jts.46.263] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Myocardial ischemia/reperfusion (I/R) injury could lead to severe cardiovascular ischemic disease, including myocardial infarction and contractile dysfunction. Remifentanil demonstrated protective effect on myocardial I/R injury. The underlying pathophysiological mechanism was then investigated in this study. In the current study, primary cardiomyocytes were isolated from rats, and then preconditioned with remifentanil. Rats, tail vein injected with miR-205 antagomir, were subjected to infusion of remifentanil, and then subjected to regional ischemia followed by reperfusion. The results demonstrated that cell viability of hypoxia/reoxygenation-induced cardiomyocytes was increased post remifentanil, while the apoptosis was decreased accompanied with reduced cleaved caspase-3 expression. Hypoxia/reoxygenation treatment increased miR-205 and decreased PINK1 (PTEN induced putative kinase 1) expression. However, preconditioning with remifentanil reduced miR-205 and enhanced PINK1. Moreover, over-expression of miR-205 decreased PINK1 expression and counteracted the effects of remifentanil-induced increase of cell viability and decrease of cell apoptosis in hypoxia/reoxygenation-induced cardiomyocytes. Injection with miR-205 antagomir improved remifentanil-induced decrease of infarct size and LDH (lactic acid dehydrogenase) activity in rat model with I/R injury. In conclusion, miR-205 might participate in the protective effect of remifentanil in rat myocardial I/R injury via regulation of PINK1, providing a potential target for amelioration of cardiovascular ischemic disease.
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Affiliation(s)
- Lu Cheng
- Department of Cardiovascular Internal Medicine, The Affiliated Cardiovascular Hospital of Qindao University, China
| | - Yifan Wu
- Department of Cardiovascular Internal Medicine, Central People's Hospital of Zhanjiang, China
| | - Jiayu Tang
- Department of Medical Laboratory, Central People's Hospital of Zhanjiang, China
| | - Chao Zhang
- Department of Cardiovascular Internal Medicine, The Affiliated Cardiovascular Hospital of Qindao University, China
| | - Huan Cheng
- Department of Uitrasound, The Affiliated Hospital of Qindao University, China
| | - Qi Jiang
- Department of Cardiovascular Internal Medicine, The Affiliated Cardiovascular Hospital of Qindao University, China
| | - Chunyan Jian
- Department of Cardiovascular Internal Medicine, Central People's Hospital of Zhanjiang, China
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Zhang Y, Fan X, Yang H. Long noncoding RNA FTX ameliorates hydrogen peroxide-induced cardiomyocyte injury by regulating the miR-150/KLF13 axis. Open Life Sci 2020; 15:1000-1012. [PMID: 33817286 PMCID: PMC7874544 DOI: 10.1515/biol-2020-0100] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 07/07/2020] [Accepted: 07/31/2020] [Indexed: 01/04/2023] Open
Abstract
Background Myocardial reperfusion is an effective therapy for acute myocardial infarction (AMI). However, ischemia/reperfusion (I/R) injury following myocardial reperfusion is a significant limitation for AMI treatment. Five prime to Xist (FTX) was recognized as a biomarker of multiple diseases, including heart disease. However, the molecular mechanism of FTX in I/R injury is unclear. Methods Cell viability was evaluated by using cell counting kit-8 (CCK-8) assay. Apoptosis was analyzed by using a caspase-3 activity detection kit and flow cytometry. The expression of FTX, microRNA (miR)-150, and Kruppel-like factor 13 (KLF13) was measured by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). The interaction of miR-150 and FTX or KLF13 was confirmed by a dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. Protein expression of KLF13 was examined by Western blot. The role of FTX was detected in I/R-injured heart tissues in vivo. Results Hydrogen peroxide (H2O2) induced cardiomyocyte injury by decreasing cell viability and expediting cell apoptosis. However, FTX alleviated cardiomyocyte injury by promoting cell proliferation and restricting cell apoptosis of H9C2 cells that were treated with H2O2. In addition, we discovered that FTX directly interacted with miR-150, while KLF13 was a target of miR-150. Rescue experiments showed that miR-150 neutralized the FTX-mediated promotion of cell progression and restriction of cell apoptosis in H9C2 cells treated with H2O2. KLF13 knockdown restored the effect of miR-150 on increased proliferation and decrease in apoptosis in H2O2-treated cardiomyocytes. Furthermore, FTX enhanced the expression of KLF13 protein through interaction with miR-150. Upregulation of FTX repressed apoptosis in I/R-injured heart tissues in vivo. Conclusion FTX relieves H2O2-induced cardiomyocyte injury by increasing KLF13 expression via depletion of miR-150, thus providing a novel therapeutic target for the alleviation of I/R injury.
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Affiliation(s)
- Yamin Zhang
- Department of Cardiology, The First Affiliated Hospital of Airforce Military Medical University, No. 127, Changle West Road, Xi'an, Shaanxi, 710032, China
| | - Xiaoying Fan
- Department of Cardiology, The First Affiliated Hospital of Airforce Military Medical University, No. 127, Changle West Road, Xi'an, Shaanxi, 710032, China
| | - Hua Yang
- Department of Cardiology, The First Affiliated Hospital of Airforce Military Medical University, No. 127, Changle West Road, Xi'an, Shaanxi, 710032, China
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23
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Reiterer C, Hu K, Sljivic S, Falkner von Sonnenburg M, Fleischmann E, Kainz A, Kabon B. Mannitol and renal graft injury in patients undergoing deceased donor renal transplantation - a randomized controlled clinical trial. BMC Nephrol 2020; 21:307. [PMID: 32723374 DOI: 10.1186/s12882-020-01961-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 07/17/2020] [Indexed: 02/07/2023] Open
Abstract
Background Ischaemia/reperfusion (I/R) injury is associated with renal tissue damage during deceased donor renal transplantation. The effect of mannitol to reduce I/R injury during graft reperfusion in renal transplant recipients is based on weak evidence. We evaluated the effect of mannitol to reduce renal graft injury represented by 16 serum biomarkers, which are indicators for different important pathophysiological pathways. Our primary outcome were differences in biomarker concentrations between the mannitol and the placebo group 24 h after graft reperfusion. Additionally, we performed a linear mixed linear model to account biomarker concentrations before renal transplantation. Methods Thirty-four patients undergoing deceased donor renal transplantation were randomly assigned to receive either 20% mannitol or 0.9% NaCl placebo solution before, during, and after graft reperfusion. Sixteen serum biomarkers (MMP1, CHI3L1, CCL2, MMP8, HGF, GH, FGF23, Tie2, VCAM1, TNFR1, IGFBP7, IL18, NGAL, Endostatin, CystC, KIM1) were measured preoperatively and 24 h after graft reperfusion using Luminex assays and ELISA. Results Sixteen patients in each group were analysed. Tie2 differed 24 h after graft reperfusion between both groups (p = 0.011). Change of log2 transformed concentration levels over time differed significantly in four biomarkers (VCAM1,Endostatin, KIM1, GH; p = 0.007; p = 0.013; p = 0.004; p = 0.033; respectively) out of 16 between both groups. Conclusion This study showed no effect of mannitol on I/R injury in patients undergoing deceased renal transplantation. Thus, we do not support the routinely use of mannitol to attenuate I/R injury. Trial registration NCT02705573. Registered on 10th March 2016.
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24
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Zhong J, Ouyang H, Zheng S, Guo Z, Chen Y, Zhong Y, Zhong W, Zuo L, Lu J. The YAP/SERCA2a signaling pathway protects cardiomyocytes against reperfusion-induced apoptosis. Aging (Albany NY) 2020; 12:13618-13632. [PMID: 32645692 PMCID: PMC7377864 DOI: 10.18632/aging.103481] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/27/2020] [Indexed: 12/12/2022]
Abstract
Mitochondria and the endoplasmic reticulum (ER) are known to promote cardiac ischemia/reperfusion (I/R) injury. Overexpression of yes-associated protein (YAP) and/or sarcoplasmic reticulum calcium ATPase 2a (SERCA2a) has been shown to protect cardiomyocytes against I/R-induced injury. Here, we show that activation of the YAP/SERCA2a pathway attenuated mitochondrial damage and ER stress (ERS) to maintain cardiomyocyte viability in the setting of I/R injury. Our results demonstrate that I/R treatment reduced the transcription and expression of YAP and SERCA2a, along with a decline in cardiomyocyte viability. The overexpression of YAP promoted SERCA2a transcription, whereas SERCA2a upregulation did not affect the YAP transcription, suggesting that YAP functions upstream of SERCA2a. Activation of the YAP/SERCA2a pathway suppressed mitochondrial damage by sustaining the mitochondrial redox balance and restoring mitochondrial bioenergetics. Additionally, its activation repressed ERS, reduced calcium overload, and eventually blocked caspase activation. The knockdown of SERCA2a suppressed the protective effects of YAP overexpression on mitochondrial damage and ERS. Overall, our findings reveal that the YAP/SERCA2a pathway attenuates the mitochondrial damage and ERS in response to cardiac I/R injury by regulating the mitochondria–ER communication.
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Affiliation(s)
- Jiankai Zhong
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528308, Guangdong, China
| | - Haichun Ouyang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528308, Guangdong, China
| | - Sulin Zheng
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528308, Guangdong, China
| | - Zhongzhou Guo
- Department of Cardiology, Huiqiao Medical Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Yuying Chen
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528308, Guangdong, China
| | - Yuanlin Zhong
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528308, Guangdong, China
| | - Wenhao Zhong
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528308, Guangdong, China
| | - Liuer Zuo
- Department of Intensive Care Unit, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528308, Guangdong, China
| | - Jianhua Lu
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Foshan 528308, Guangdong, China
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Dong Q, Jie Y, Ma J, Li C, Xin T, Yang D. Wnt/β-catenin signaling pathway promotes renal ischemia-reperfusion injury through inducing oxidative stress and inflammation response. J Recept Signal Transduct Res 2020; 41:15-18. [PMID: 32580617 DOI: 10.1080/10799893.2020.1783555] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Oxidative stress and inflammation response have been found to be associated with renal ischemia reperfusion (I/R) injury through an undefined mechanism. The aim of our study is to explore the influence of Wnt/β-catenin signaling pathway on oxidative stress and inflammation response during renal I/R injury. The results of our study demonstrated that oxidative stress was induced whereas antioxidative factors were suppressed by renal I/R injury. Besides, the transcriptions and activities of pro-inflammation factors were also upregulated by renal I/R injury. Interestingly, inhibition of Wnt/β-catenin signaling pathway significantly attenuated I/R-mediated oxidative stress and inflammation response. Therefore, our results report a novel pathway responsible for renal I/R injury. Inhibition of Wnt/β-catenin signaling pathway would be considered as an effective approach to regulate oxidative stress and inflammation response in reperfused kidney.
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Affiliation(s)
- Qi Dong
- Department of Nephrology, Tianjin Hospital, Tianjin, P.R. China
| | - Yingxin Jie
- Department of Emergency, Tianjin Hospital, Tianjin, P.R. China
| | - Jian Ma
- Tianjin Women's and Children's Health Center, Tianjin Hospital, Tianjin, P.R. China
| | - Chen Li
- Department of Orthopaedics, Tianjin Hospital, Tianjin, P.R. China
| | - Ting Xin
- Department of Cardiology, Tianjin First Central Hospital, Tianjin, P.R. China
| | - Dingwei Yang
- Department of Nephrology, Tianjin Hospital, Tianjin, P.R. China
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26
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Pang Y, Zhu S, Pei H. Pachymic acid protects against cerebral ischemia/reperfusion injury by the PI3K/Akt signaling pathway. Metab Brain Dis 2020; 35:673-680. [PMID: 32140824 DOI: 10.1007/s11011-020-00540-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 10/15/2019] [Accepted: 01/23/2020] [Indexed: 12/26/2022]
Abstract
Pachymic acid (PA) from medicinal fungus Poria cocos has a variety of pharmacological potentials. However, there are no reports of the effects of PA on cerebral ischemia/reperfusion (I/R) injury. The purpose of this study was to investigate the mechanisms of PA on cerebral I/R injury in rats. The effects of PA on cerebral infarction size, brain water content, neurological symptoms and cerebral blood flow were evaluated. Nissl staining was used to observe the damage of ischemic brain neurons after I/R in rats. Apoptosis of ischemic brain neurons after I/R was observed by TUNEL staining. The effect of PA on the expression of some components of PI3K/Akt was detected by Western blotting. PA significantly increased cerebral blood flow after I/R in rats, reduced infarct volume and brain water content, and downgrade neurological function scores, significantly reduced neuronal damage after I/R in rats, and significantly decreased neuronal apoptosis. The effect of PA on rat I/R can be eliminated by LY294002. In addition, PA significantly up-regulated the protein expression of p-PTEN (Ser380), p-PDK1 (Ser241), p-Akt (Ser473), pc-Raf (Ser259) and p-BAD (Ser136), and down-regulated Cleaved caspase protein expression. LY294002 can reverse the effect of PA on the expression of PI3K / Akt signaling pathway related protein in rats after I/R. PA had obviously neuroprotective effects on brain I/R injury and neuronal apoptosis, and its mechanism may be related to activation of PI3K / Akt signaling pathway.
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Affiliation(s)
- Yingqiao Pang
- Medical School of Qingdao University, No. 38 Dengzhou Road, Qingdao City, Shandong Province, 266021, People's Republic of China
| | - Shaozhi Zhu
- Medical School of Qingdao University, No. 38 Dengzhou Road, Qingdao City, Shandong Province, 266021, People's Republic of China
| | - Haitao Pei
- Department of Neurology, The Affiliated Hospital of the Qingdao University, No.19 Jiangsu Road, Qingdao City, Shandong Province, 266011, People's Republic of China.
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27
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Peng L, Zhou Y, Jiang N, Wang T, Zhu J, Chen Y, Li L, Zhang J, Yu S, Zhao Y. DJ-1 exerts anti-inflammatory effects and regulates NLRX1-TRAF6 via SHP-1 in stroke. J Neuroinflammation 2020; 17:81. [PMID: 32151250 PMCID: PMC7061472 DOI: 10.1186/s12974-020-01764-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 02/28/2020] [Indexed: 12/11/2022] Open
Abstract
Background Acute inflammation induced by reactive astrocytes after cerebral ischemia/reperfusion (I/R) injury is important for protecting the resultant lesion. Our previous study demonstrated that DJ-1 is abundantly expressed in reactive astrocytes after cerebral I/R injury. Here, we show that DJ-1 negatively regulates the inflammatory response by facilitating the interaction between SHP-1 and TRAF6, thereby inducing the dissociation of NLRX1 from TRAF6. Methods We used oxygen-glucose deprivation/reoxygenation (OGD/R) in vitro in primary astrocyte cultures and transient middle cerebral artery occlusion/reperfusion (MCAO/R) in vivo to mimic I/R insult. Results The inhibition of DJ-1 expression increased the expression of the inflammatory cytokines TNF-α, IL-1β, and IL-6. DJ-1 knockdown facilitated the interaction between NLRX1 and TRAF6. However, the loss of DJ-1 attenuated the interaction between SHP-1 and TRAF6. In subsequent experiments, a SHP-1 inhibitor altered the interaction between SHP-1 and TRAF6 and facilitated the interaction between NLRX1 and TRAF6 in DJ-1-overexpressing astrocytes. Conclusion These findings suggest that DJ-1 exerts an SHP-1-dependent anti-inflammatory effect and induces the dissociation of NLRX1 from TRAF6 during cerebral I/R injury. Thus, DJ-1 may be an efficacious therapeutic target for the treatment of I/R injury.
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Affiliation(s)
- Li Peng
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yang Zhou
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Ning Jiang
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Tingting Wang
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Jin Zhu
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Yanlin Chen
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Linyu Li
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Jinyan Zhang
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China
| | - Shanshan Yu
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China. .,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China. .,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China. .,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
| | - Yong Zhao
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, Chongqing, 400016, People's Republic of China. .,Molecular Medical Laboratory, Chongqing Medical University, Chongqing, 400016, People's Republic of China. .,Institute of Neuroscience, Chongqing Medical University, Chongqing, 400016, People's Republic of China. .,Key Laboratory of Neurobiology, Chongqing Medical University, Chongqing, 400016, People's Republic of China.
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Pei YH, Chen J, Wu X, He Y, Qin W, He SY, Chang N, Jiang H, Zhou J, Yu P, Shi HB, Chen XH. LncRNA PEAMIR inhibits apoptosis and inflammatory response in PM2.5 exposure aggravated myocardial ischemia/reperfusion injury as a competing endogenous RNA of miR-29b-3p. Nanotoxicology 2020; 14:638-653. [PMID: 32100595 DOI: 10.1080/17435390.2020.1731857] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The sensitivity of myocardium is enhanced to ischemia/reperfusion (I/R) injury under PM2.5 exposure. It is still under prelude for lncRNA-miRNA pair in the study of aggravated myocardial I/R injury under PM2.5 exposure. In this study, we first built a rat model of 30 min ischemia and 24 h reperfusion followed PM2.5 (6.0 mg/kg) exposure. We found PM2.5 exposure could obviously aggravate I/R injury in the fields of myocardium damage, apoptosis levels and cardiac function which were evaluated by TTC staining, TUNEL and echocardiography, respectively. Then, based on results of sequencing and RT-qPCR, we selected NONRATT003473.2 in the follow-up experiments and named this lncRNA as PM2.5 exposure aggravated myocardial I/R injury lncRNA (PEAMIR). Consistent with the results rat model, we confirmed PEAMIR to be a protective lncRNA against PM + HR triggered damages in H9c2 cells. Next, according to the bioinformatics analysis from miRanda database and a series of gain- and loss-of-function experiments, we proved PEAMIR to be a ceRNA for miR-29b-3p to inhibit cardiac inflammation and apoptosis. Finally, using Target-Scan database, the conserved binding sites for miR-29b-3p was identified in the 3'UTR of PI3K (p85a), a key protein of apoptosis. Our subsequent experiments validated the regulatory relationship between PEAMIR-miR-29b-3p ceRNA pair and PI3K (p85a)/Akt/GSK3b/p53 cascade pathway. In conclusion, our study demonstrated the role and mechanism of PEAMIR in the augment of I/R injury under PM2.5 exposure, suggesting a promising strategy for the prevention and treatment of I/R injury under PM2.5 exposure.
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Affiliation(s)
- Ying-Hao Pei
- Department of Intensive Care Unit, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Jie Chen
- Department of Gynecology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Xiang Wu
- Department of Geriatrics, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Yun He
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Wei Qin
- Jiangsu Environmental Monitoring Center, Nanjing, China
| | - Shu-Yin He
- Department of Intensive Care Unit, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Ning Chang
- Department of Intensive Care Unit, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Hua Jiang
- Department of Intensive Care Unit, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Jiang Zhou
- Department of Intensive Care Unit, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Peng Yu
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Hai-Bo Shi
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
| | - Xiao-Hu Chen
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People's Republic of China
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Yao P, Li YL, Chen Y, Shen W, Wu KY, Xu WH. Overexpression of long non-coding RNA Rian attenuates cell apoptosis from cerebral ischemia-reperfusion injury via Rian/miR-144-3p/GATA3 signaling. Gene 2020; 737:144411. [PMID: 32006596 DOI: 10.1016/j.gene.2020.144411] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 01/14/2020] [Accepted: 01/27/2020] [Indexed: 12/31/2022]
Abstract
Long non-coding RNAs (lncRNAs) have been identified in cerebral ischemia-reperfusion (I/R) injury nowadays. Herein, we uncovered the function and underlying mechanism of the lncRNA Rian in cerebral I/R injury. The oxygen-glucose deprivation model in N2a cells was offered to mimic cerebral I/R injury in vitro. Trypan blue staining, reactive oxygen species (ROS) production, and caspase-3 activity were used to evaluate cell apoptosis. Then, middle cerebral artery occlusion was conducted to evaluate the function of lncRNA Rian in mice. Real-time PCR and western blotting were performed to determine the expression of lncRNA Rian, miR-144-3p, GATA binding protein 3 (GATA3), caspase-3, Bax, and Bcl-2. The results showed that both Rian and GATA3 were downregulated, and miR-144-3p was upregulated in cerebral I/R injury in vitro and in vivo. Overexpression of Rian could inhibit the cell apoptosis induced by oxygen-glucose deprivation. Furthermore, overexpression of Rian distinctly reduced the infarct size, and it also improved the neurological score. Overexpression of Rian could abolish miR-144-3p-mediated I/R injury in vitro and in vivo. Besides, GATA3 was the target of miR-144-3p and GATA3 could be regulated co-operatively by miR-144-3p and Rian. Consequently, these findings showed that the Rian/miR-144-3p/GATA3 axis is an essential signaling in cerebral I/R injury. The lncRNA Rian may serve as a potential target for novel treatment in patients with ischemic stroke.
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Affiliation(s)
- Peng Yao
- Department of Intensive Care Unit (ICU), Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China
| | - Yi-Ling Li
- Department of Anesthesiology, Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China
| | - Yong Chen
- Department of Anesthesiology, The Second Affiliated Medicine of Nanchang University, No. 1 Mingde Road, Nanchang, Jiangxi Province 330000, China
| | - Wei Shen
- Department of Intensive Care Unit (ICU), Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China
| | - Ke-Yan Wu
- Department of Intensive Care Unit (ICU), Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China
| | - Wen-Hao Xu
- Department of Intensive Care Unit (ICU), Xiaogan Central Hospital, Wuhan University of Science and Technology, No. 6 Square Road, South District, Xiaogan, Hubei Province 432000, China.
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Baehr A, Klymiuk N, Kupatt C. Evaluating Novel Targets of Ischemia Reperfusion Injury in Pig Models. Int J Mol Sci 2019; 20:E4749. [PMID: 31557793 PMCID: PMC6801853 DOI: 10.3390/ijms20194749] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 09/10/2019] [Revised: 09/19/2019] [Accepted: 09/22/2019] [Indexed: 12/12/2022] Open
Abstract
Coronary heart diseases are of high relevance for health care systems in developed countries regarding patient numbers and costs. Disappointingly, the enormous effort put into the development of innovative therapies and the high numbers of clinical studies conducted are counteracted by the low numbers of therapies that become clinically effective. Evidently, pre-clinical research in its present form does not appear informative of the performance of treatments in the clinic and, even more relevant, it appears that there is hardly any consent about how to improve the predictive capacity of pre-clinical experiments. According to the steadily increasing relevance that pig models have gained in biomedical research in the recent past, we anticipate that research in pigs can be highly predictive for ischemia-reperfusion injury (IRI) therapies as well. Thus, we here describe the significance of pig models in IRI, give an overview about recent developments in evaluating such models by clinically relevant methods and present the latest insight into therapies applied to pigs under IRI.
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Affiliation(s)
- Andrea Baehr
- Klinikum Rechts der Isar, Internal Medicine I, Technical University of Munich, 81675 Munich, Germany.
- German Centre for Cardiovascular Research, Munich Heart Alliance, 80802 Munich, Germany.
| | - Nikolai Klymiuk
- Klinikum Rechts der Isar, Internal Medicine I, Technical University of Munich, 81675 Munich, Germany.
- German Centre for Cardiovascular Research, Munich Heart Alliance, 80802 Munich, Germany.
| | - Christian Kupatt
- Klinikum Rechts der Isar, Internal Medicine I, Technical University of Munich, 81675 Munich, Germany.
- German Centre for Cardiovascular Research, Munich Heart Alliance, 80802 Munich, Germany.
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31
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Zadeh JK, Garcia-Bardon A, Hartmann EK, Pfeiffer N, Omran W, Ludwig M, Patzak A, Xia N, Li H, Gericke A. Short-Time Ocular Ischemia Induces Vascular Endothelial Dysfunction and Ganglion Cell Loss in the Pig Retina. Int J Mol Sci 2019; 20:E4685. [PMID: 31546635 DOI: 10.3390/ijms20194685] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/16/2019] [Accepted: 09/18/2019] [Indexed: 12/15/2022] Open
Abstract
Visual impairment and blindness are often caused by retinal ischemia-reperfusion (I/R) injury. We aimed to characterize a new model of I/R in pigs, in which the intraocular pathways were not manipulated by invasive methods on the ocular system. After 12 min of ischemia followed by 20 h of reperfusion, reactivity of retinal arterioles was measured in vitro by video microscopy. Dihydroethidium (DHE) staining, qPCR, immunohistochemistry, quantification of neurons in the retinal ganglion cell layer, and histological examination was performed. Retinal arterioles of I/R-treated pigs displayed marked attenuation in response to the endothelium-dependent vasodilator, bradykinin, compared to sham-treated pigs. DHE staining intensity and messenger RNA levels for HIF-1α, VEGF-A, NOX2, and iNOS were elevated in retinal arterioles following I/R. Immunoreactivity to HIF-1α, VEGF-A, NOX2, and iNOS was enhanced in retinal arteriole endothelium after I/R. Moreover, I/R evoked a substantial decrease in Brn3a-positive retinal ganglion cells and noticeable retinal thickening. In conclusion, the results of the present study demonstrate that short-time ocular ischemia impairs endothelial function and integrity of retinal blood vessels and induces structural changes in the retina. HIF-1α, VEGF-A, iNOS, and NOX2-derived reactive oxygen species appear to be involved in the pathophysiology.
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Muessig JM, Kaya S, Moellhoff L, Noelle J, Hidalgo Pareja L, Masyuk M, Gerdes N, Pernow J, Kelm M, Jung C. A Model of Blood Component-Heart Interaction in Cardiac Ischemia-Reperfusion Injury using a Langendorff-Based Ex Vivo Assay. J Cardiovasc Pharmacol Ther 2019; 25:164-173. [PMID: 31495204 DOI: 10.1177/1074248419874348] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Myocardial infarction is one of the leading causes of morbidity and mortality worldwide. Cellular interactions of red blood cells (RBCs) and platelets with endothelial cells and cardiomyocytes play a crucial role in cardiac ischemia/reperfusion (I/R) injury. However, addressing the specific impact of such cell-to-cell interactions in commonly employed in vivo models of cardiac I/R injury is challenging due to overlap of neuronal, hormonal, and immunological pathways. This study aimed to refine a Langendorff-based ex vivo transfer model to evaluate the impact of specific blood components on cardiac I/R injury. MATERIAL AND METHODS Murine whole blood, defined murine blood components (RBCs, platelet-rich plasma [PRP], and platelet-poor plasma [PPP], respectively) as well as human RBCs were loaded to the coronary system of isolated murine hearts in a Langendorff system before initiating global ischemia for 40 minutes. Following 60 minutes of reperfusion with Krebs Henseleit Buffer, left ventricular function and coronary flow were assessed. Infarct size was determined by specific histological staining following 120 minutes of reperfusion. RESULTS Loading of murine whole blood to the coronary system of isolated murine hearts at the beginning of 40 minutes of global ischemia improved left ventricular function after 60 minutes of reperfusion and reduced the infarct size in comparison to buffer-treated controls. Similarly, isolated murine RBCs, PRP, and PPP mediated a protective effect in the cardiac I/R model. Furthermore, human RBCs showed a comparable protective capacity as murine RBCs. CONCLUSION This Langendorff-based transfer model of cardiac I/R injury is a feasible, time-, and cost-effective model to evaluate the impact of blood components on myocardial infarction. The presented method facilitates loading of blood components of genetically modified mice to murine hearts of a different mouse strain, thus complementing time- and cost-intensive chimeric models and contributing to the development of novel targeted therapies.
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Affiliation(s)
- Johanna M Muessig
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Sema Kaya
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Luise Moellhoff
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Johanna Noelle
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Leonie Hidalgo Pareja
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Maryna Masyuk
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - Norbert Gerdes
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
| | - John Pernow
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Malte Kelm
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany.,CARID, Cardiovascular Research Institute Duesseldorf, Düsseldorf, Germany
| | - Christian Jung
- Division of Cardiology, Pulmonology, and Vascular Medicine, Medical Faculty, University Hospital Düsseldorf, Heinrich-Heine-University, Düsseldorf, Germany
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Jiang L, Zeng H, Ni L, Qi L, Xu Y, Xia L, Yu Y, Liu B, Yang H, Hao H, Li P. HIF-1α Preconditioning Potentiates Antioxidant Activity in Ischemic Injury: The Role of Sequential Administration of Dihydrotanshinone I and Protocatechuic Aldehyde in Cardioprotection. Antioxid Redox Signal 2019; 31:227-242. [PMID: 30799630 DOI: 10.1089/ars.2018.7624] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Aims: The management of myocardial ischemia has been challenged by reperfusion injury. Reactive oxygen species (ROS) production is the critical cause of reperfusion injury, but antioxidant treatment failed to gain satisfactory effects. We hypothesized that improvement of redox homeostasis by preconditioning regulation should potentiate the ability of antioxidants to protect the heart from reperfusion injury. Results: By phenotype-based screening, we identified that dihydrotanshinone I (DT) and protocatechuic aldehyde (PCA) potently protected cardiomyocytes through preconditioning regulation and antioxidant activity, respectively. DT induced transient ROS generation via reversible inhibition of mitochondrial respiratory complex I and thereby stabilizing HIF-1α, while PCA elevated the levels of reduced glutathione (GSH) by providing reducing equivalents to scavenge ROS. HIF-1α, stabilized by DT, transcriptionally upregulated Nrf2 and thereby activated antioxidant enzymes, potentiating PCA to protect cardiomyocytes from reperfusion injury by strengthening intrinsic ROS scavenging capacity. In rat ischemia/reperfusion (I/R) model, sequential administration of DT and PCA, but not in reverse, additively protected the heart from I/R injury, manifested by reduced infarct size and improved cardiac function. These results were further supported by sequential administration of metformin and vitamin E in the rat and porcine I/R models. Innovation and Conclusion: Our work demonstrates that preconditioning regulation of redox state is essential for antioxidants to protect the heart from I/R injury, providing a new direction for the treatment of myocardial injury.
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Affiliation(s)
- Lifeng Jiang
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Hao Zeng
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Lihong Ni
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Lifengrong Qi
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yanmin Xu
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ludan Xia
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yinghua Yu
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Baolin Liu
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Hua Yang
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Haiping Hao
- 2 State Key Laboratory of Natural Medicines, Department of Pharmacokinetics, College of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ping Li
- 1 State Key Laboratory of Natural Medicines, Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
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Zhu Y, Hu C, Du Y, Zhang J, Liu J, Han H, Zhao Y. Significant association between admission serum monocyte chemoattractant protein-1 and early changes in myocardial function in patients with first ST-segment elevation myocardial infarction after primary percutaneous coronary intervention. BMC Cardiovasc Disord 2019; 19:107. [PMID: 31077149 PMCID: PMC6511179 DOI: 10.1186/s12872-019-1098-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 05/03/2019] [Indexed: 12/31/2022] Open
Abstract
Background Recent studies have indicated that monocyte chemoattractant protein-1 (MCP-1) plays an important role in the initiation and progression of ischaemic heart disease. However, no previous research has investigated the correlation between serum MCP-1 levels and early changes in myocardial function in patients with ST-segmental elevation myocardial infarction (STEMI) after primary percutaneous coronary intervention (PCI). Methods A total of 87 STEMI patients who had undergone a successful primary PCI were consecutively recruited. All the patients included in this study were grouped into two subgroups according to the median value of MCP-1 upon admission. An early change in left ventricular ejection fraction (LVEF) was defined as (LVEF at 3 months post-STEMI)-(LVEF at 2 days post-STEMI). Results Serum MCP-1 levels increased gradually over time during the first 72 h after the onset of STEMI. The concentration of hypersensitive cardiac troponin I (hs-cTnI) upon admission as well as at 24 h and 72 h after primary PCI, especially the peak hs-cTnI concentration, declined significantly in the low admission MCP-1 group. As continuous variable, admission MCP-1 also correlated positively with admission hs-cTnI, hs-cTnI at 24 h after primary PCI, and peak hs-cTnI. Additionally, the absolute early change in LVEF improved markedly in the low admission MCP-1 group (3.77% ± 6.05% vs − 0.18% ± 7.69%, p = 0.009) compared to that in the high admission MCP-1 group. Most importantly, the global LVEF in the low admission MCP-1 group also improved significantly at 3 months compared to baseline LVEF (55.79% ± 7.05% vs 59.60% ± 6.51%, p = 0.011), while an improvement in global LVEF was not observed in the high admission MCP-1 group. Furthermore, as a continuous variable, the MCP-1 level up admission also correlated negatively with early changes in LVEF (r = − 0.391, p = 0.001). After assessment by multiple linear regression analysis, the MCP-1 level upon admission remained correlated with early changes in LVEF [beta = − 0.089, 95% CI (− 0.163 to − 0.015), p = 0.020]. Conclusion MCP-1 upon admission not only correlated positively with hs-cTnI at different time points and peak hs-cTnI, but also associated inversely with early improvements in myocardial function in patients with first STEMI. So we speculated that suppression the expression of MCP-1 via various ways may be a promising therapeutic target in myocardial I/R injury in the future.
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Affiliation(s)
- Yong Zhu
- Department of cardiology, Beijing Anzhen Hospital, Capital Medical University, #2, Anzhenlu, Chaoyang District, Beijing, 100029, China
| | - Chengping Hu
- Department of cardiology, Beijing Anzhen Hospital, Capital Medical University, #2, Anzhenlu, Chaoyang District, Beijing, 100029, China
| | - Yu Du
- Department of cardiology, Beijing Anzhen Hospital, Capital Medical University, #2, Anzhenlu, Chaoyang District, Beijing, 100029, China
| | - Jianwei Zhang
- Department of cardiology, Beijing Anzhen Hospital, Capital Medical University, #2, Anzhenlu, Chaoyang District, Beijing, 100029, China
| | - Jinxing Liu
- Department of cardiology, Beijing Anzhen Hospital, Capital Medical University, #2, Anzhenlu, Chaoyang District, Beijing, 100029, China
| | - Hongya Han
- Department of cardiology, Beijing Anzhen Hospital, Capital Medical University, #2, Anzhenlu, Chaoyang District, Beijing, 100029, China
| | - Yingxin Zhao
- Department of cardiology, Beijing Anzhen Hospital, Capital Medical University, #2, Anzhenlu, Chaoyang District, Beijing, 100029, China.
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Tian H, Tan R, Ye B, Yan S, Sui M, Zhao W, Zhang L, Zhu Y, Zeng L. SHP-1 inhibits renal ischemia reperfusion injury via dephosphorylating ASK1 and suppressing apoptosis. Biochem Biophys Res Commun 2019; 513:360-367. [PMID: 30961932 DOI: 10.1016/j.bbrc.2019.03.187] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 03/27/2019] [Indexed: 12/14/2022]
Abstract
Apoptosis of tubular epithelium cells (TECs) plays critical roles in renal ischemia reperfusion (I/R) injury, but the molecular regulatory mechanisms of apoptosis still require further investigation. Recently, phosphatase family members have been suggested to regulate multiple aspects of the injury and regeneration response. However, the roles of SHP-1, an important protein-tyrosine phosphatase, in the regulation of renal I/R injury remain unknown. Here, we found that SHP-1 knockdown in vivo significantly increased renal I/R injury and aggravated the apoptosis of TECs. Consistently, after SHP-1 knockdown in TECs in vitro, a sharp increase of apoptosis induced by cobalt dichloride was found. The protective role of SHP-1 was also validated in a TEC cell line stably overexpressing SHP-1. Mechanistically, the ASK1/MKK4/JNK pro-apoptosis signal was over activated after SHP-1 knockdown, and SHP-1 could bind to and dephosphorylate ASK1 to inhibit its activation, thus repressing apoptosis.
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Affiliation(s)
- Hongzhe Tian
- Department of Organ Transplantation, Changhai Hospital, Second Military Medical University, Shanghai, 200433, PR China
| | - Rumeng Tan
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Bogen Ye
- Department of Organ Transplantation, Changhai Hospital, Second Military Medical University, Shanghai, 200433, PR China
| | - Sijia Yan
- Department of Organ Transplantation, Changhai Hospital, Second Military Medical University, Shanghai, 200433, PR China
| | - Mingxing Sui
- Department of Organ Transplantation, Changhai Hospital, Second Military Medical University, Shanghai, 200433, PR China
| | - Wenyu Zhao
- Department of Organ Transplantation, Changhai Hospital, Second Military Medical University, Shanghai, 200433, PR China
| | - Lei Zhang
- Department of Organ Transplantation, Changhai Hospital, Second Military Medical University, Shanghai, 200433, PR China
| | - Youhua Zhu
- Department of Organ Transplantation, Changhai Hospital, Second Military Medical University, Shanghai, 200433, PR China
| | - Li Zeng
- Department of Organ Transplantation, Changhai Hospital, Second Military Medical University, Shanghai, 200433, PR China.
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Wang C, Zhu G, He W, Yin H, Lin F, Gou X, Li X. BMSCs protect against renal ischemia-reperfusion injury by secreting exosomes loaded with miR-199a-5p that target BIP to inhibit endoplasmic reticulum stress at the very early reperfusion stages. FASEB J 2019; 33:5440-5456. [PMID: 30640521 DOI: 10.1096/fj.201801821r] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Bone marrow-derived mesenchymal stem cells (BMSCs) have been recently reported to play a variety of vital roles in organ and tissue damage repair, mainly via potent paracrine activity, including secreting extracellular vesicles, such as exosomes, that serve as mediators facilitating intercellular communication and reprogramming recipient cells by delivering their contents to target cells. However, the underlying mechanisms are diverse and complex, and the influencing characteristics have rarely been studied. Accordingly, we designed this study to explore the time dependence of the effects of exosomes derived from BMSCs (BMexos) on renal ischemia-reperfusion (I/R) injury and the underlying mechanisms associated with the reperfusion time. Impressively, our study is the first to find that BMexos protected against renal I/R injury in vitro and in vivo at the very early reperfusion stages, especially 4-8 h after reperfusion in vitro and 8-16 h after reperfusion in vivo. Interestingly, we simultaneously found that endoplasmic reticulum (ER) stress was significantly suppressed following the administration of BMexos in vitro and in vivo with a similar time dependence. Additionally, we discovered that miR-199a-5p, which was abundant in the BMSCs, was transferred into renal tubular epithelial cells (NRK-52E) in a time-dependent manner and significantly inhibited I/R-induced ER stress by targeting binding immunoglobulin protein (BIP). Cocultivation with miR-199a-5p-overexpressing BMSCs amplified the suppression of ER stress and further protected against I/R injury. However, coculture with miR-199a-5p-knockdown BMSCs obviously increased ER stress and reversed the BMexos-induced protection, and silencing BIP by small interfering RNA-1098 in NRK-52E inhibited these effects. This study provides evidence that administering BMexos at the very early reperfusion stages significantly protects against renal I/R injury, and ER stress is closely linked to this protection. These results suggest a novel therapeutic strategy during the very early reperfusion stages of renal I/R injury.-Wang, C., Zhu, G., He, W., Yin, H., Lin, F., Gou, X., Li, X. BMSCs protect against renal ischemia-reperfusion injury by secreting exosomes loaded with miR-199a-5p that target BIP to inhibit endoplasmic reticulum stress at the very early reperfusion stages.
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Affiliation(s)
- Chenyang Wang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, China.,Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Chin
| | - Gongmin Zhu
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, China
| | - Weiyang He
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hubin Yin
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, China
| | - Fan Lin
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, China
| | - Xin Gou
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xinyuan Li
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Chongqing Key Laboratory of Molecular Oncology and Epigenetics, Chongqing, China
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Peng L, Zhao Y, Li Y, Zhou Y, Li L, Lei S, Yu S, Zhao Y. Effect of DJ-1 on the neuroprotection of astrocytes subjected to cerebral ischemia/reperfusion injury. J Mol Med (Berl) 2018; 97:189-199. [PMID: 30506316 PMCID: PMC6348070 DOI: 10.1007/s00109-018-1719-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 11/04/2018] [Accepted: 11/06/2018] [Indexed: 11/14/2022]
Abstract
Abstract Astrocytes are involved in neuroprotection, and DJ-1 is an important antioxidant protein that is abundantly expressed in reactive astrocytes. However, the role of DJ-1 in astrocytes’ neuroprotection in cerebral ischemia/reperfusion injury and its potential mechanism is unclear. Thus, to explore effects and mechanisms of DJ-1 on the neuroprotection of astrocytes, we used primary co-cultures of neurons and astrocytes under oxygen and glucose deprivation/reoxygenation in vitro and transient middle cerebral artery occlusion/reperfusion in vivo to mimic ischemic reperfusion insult. Lentiviral was used to inhibit and upregulate DJ-1 expression in astrocytes, and DJ-1 siRNA blocked DJ-1 expression in rats. Inhibiting DJ-1 expression led to decreases in neuronal viability. DJ-1 knockdown also attenuated total and nuclear Nrf2 and glutathione (GSH) levels in vitro and vivo. Similarly, loss of DJ-1 decreased Nrf2/ARE-binding activity and expression of Nrf2/ARE pathway-driven genes. Overexpression of DJ-1 yielded opposite results. This suggests that the mechanism of action of DJ-1 in astrocyte-mediated neuroprotection may involve regulation of the Nrf2/ARE pathway to increase GSH after cerebral ischemia/reperfusion injury. Thus, DJ-1 may be a new therapeutic target for treating ischemia/reperfusion injury. Key Messages Astrocytes protect neurons in co-culture after OGD/R DJ-1 is upregulated in astrocytes and plays an important physiological roles in neuronal protection under ischemic conditions DJ-1 protects neuron by the Nrf2/ARE pathway which upregulates GSH
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Affiliation(s)
- Li Peng
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, 400016, Chongqing, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, 400016, Chongqing, People's Republic of China
| | - Yipeng Zhao
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, 400016, Chongqing, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, 400016, Chongqing, People's Republic of China
| | - Yixin Li
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, 400016, Chongqing, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, 400016, Chongqing, People's Republic of China
| | - Yang Zhou
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, 400016, Chongqing, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, 400016, Chongqing, People's Republic of China
| | - Linyu Li
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, 400016, Chongqing, People's Republic of China.,Molecular Medical Laboratory, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Institute of Neuroscience, Chongqing Medical University, 400016, Chongqing, People's Republic of China.,Key Laboratory of Neurobiology, Chongqing Medical University, 400016, Chongqing, People's Republic of China
| | - Shipeng Lei
- Department of Respiratory Medicine, Jiangjin Center Hospital, Chongqing, China
| | - Shanshan Yu
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, 400016, Chongqing, People's Republic of China. .,Molecular Medical Laboratory, Chongqing Medical University, 400016, Chongqing, People's Republic of China. .,Institute of Neuroscience, Chongqing Medical University, 400016, Chongqing, People's Republic of China. .,Key Laboratory of Neurobiology, Chongqing Medical University, 400016, Chongqing, People's Republic of China.
| | - Yong Zhao
- Department of Pathology, Chongqing Medical University, Yixueyuan Road 1, 400016, Chongqing, People's Republic of China. .,Molecular Medical Laboratory, Chongqing Medical University, 400016, Chongqing, People's Republic of China. .,Institute of Neuroscience, Chongqing Medical University, 400016, Chongqing, People's Republic of China. .,Key Laboratory of Neurobiology, Chongqing Medical University, 400016, Chongqing, People's Republic of China.
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Bai H, Zhao L, Liu H, Guo H, Guo W, Zheng L, Liu X, Wu X, Luo J, Li X, Gao L, Feng D, Qu Y. Adiponectin confers neuroprotection against cerebral ischemia-reperfusion injury through activating the cAMP/PKA-CREB-BDNF signaling. Brain Res Bull 2018; 143:145-154. [PMID: 30395885 DOI: 10.1016/j.brainresbull.2018.10.013] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 12/20/2022]
Abstract
Ischemic stroke is a severe cerebrovascular disease. Although great progress has been made, the consequent ischemia-reperfusion (I/R) injury is inevitable and affects the therapeutic effect. Adiponectin (APN) is a fat-derived plasma protein that has beneficial actions on cardiovascular disorders. The present study aims to investigate the effect of APN on I/R injury and the potential underlying mechanisms. In step 1, APN were administered for three times (once every 8 h) 24 h before middle cerebral artery occlusion (MCAO). The results indicated that APN treatment reduced infarct volume, neurological deficits and brain water content after I/R injury. Meanwhile, APN was proved to increase the expression of cAMP, PKA, CREB, and BDNF. In step 2, mice were randomly assigned into the Vehicle + I/R, APN + I/R, PKA activator + I/R, PKA inhibitor + APN + I/R groups. PKA activator, PKA inhibitor, as well as APN were administered for three times before MCAO. The results indicated that PKA inhibitor downregulated the expressions of cAMP, PKA, CREB, and BDNF which subsequently weakened the protective effects of APN on cerebral I/R injury. In conclusion, our findings further suggest that APN exerts protective effect against cerebral I/R injury might through the cAMP/PKA-CREB-BDNF signaling pathway. APN is a novel candidate in the treatment of I/R diseases in the future.
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Affiliation(s)
- Hao Bai
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Lei Zhao
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Haixiao Liu
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Hao Guo
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Wei Guo
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Longlong Zheng
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Xunyuan Liu
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Xun Wu
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Jianing Luo
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Xia Li
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Li Gao
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Dayun Feng
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China
| | - Yan Qu
- Department of Neurosurgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, 710038, China.
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Bredthauer A, Lehle K, Scheuerle A, Schelzig H, McCook O, Radermacher P, Szabo C, Wepler M, Simon F. Intravenous hydrogen sulfide does not induce neuroprotection after aortic balloon occlusion-induced spinal cord ischemia/reperfusion injury in a human-like porcine model of ubiquitous arteriosclerosis. Intensive Care Med Exp 2018; 6:44. [PMID: 30357563 PMCID: PMC6200829 DOI: 10.1186/s40635-018-0209-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 06/22/2018] [Accepted: 10/14/2018] [Indexed: 12/02/2022] Open
Abstract
Objective In rodents, intravenous sulfide protected against spinal cord ischemia/reperfusion (I/R) injury during aortic balloon occlusion. We investigated the effect of intravenous sulfide on aortic occlusion-induced porcine spinal cord I/R injury. Methods Anesthetized and mechanically ventilated “familial hypercholesterolemia Bretoncelles Meishan” (FBM) pigs with high-fat-diet-induced hypercholesterolemia and atherosclerosis were randomized to receive either intravenous sodium sulfide 2 h (initial bolus, 0.2 mg kg body weight (bw)−1; infusion, 2 mg kg bw−1 h−1; n = 4) or vehicle (sodium chloride, n = 4) prior to 45 min of thoracic aortic balloon occlusion and for 8 h during reperfusion (infusion, 1 mg kg bw−1 h−1). During reperfusion, noradrenaline was titrated to maintain blood pressure at above 80% of the baseline level. Spinal cord function was assessed by motor evoked potentials (MEPs) and lower limb reflexes using a modified Tarlov score. Spinal cord tissue damage was evaluated in tissue collected at the end of experiment using hematoxylin and eosin and Nissl staining. Results A balloon occlusion time of 45 min resulted in marked ischemic neuron damage (mean of 16% damaged motoneurons in the anterior horn of all thoracic motor neurons) in the spinal cord. In the vehicle group, only one animal recovered partial neuronal function with regain of MEPs and link motions at each time point after deflating. All other animals completely lost neuronal functions. The intravenous application of sodium sulfide did not prevent neuronal cell injury and did not confer to functional recovery. Conclusion In a porcine model of I/R injury of the spinal cord, treatment with intravenous sodium sulfide had no protective effect in animals with a pre-existing arteriosclerosis.
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Affiliation(s)
- Andre Bredthauer
- Department of Anesthesiology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany. .,Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Helmholtzstraße 8/1, 89081, Ulm, Germany.
| | - Karla Lehle
- Department of Cardiothoracic Surgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Angelika Scheuerle
- Institute of Pathology - Section Neuropathology, University Hospital Ulm, Albert-Einstein-Allee 23, 89081, Ulm, Germany
| | - Hubert Schelzig
- Department of Vascular and Endovascular Surgery, Heinrich-Heine-Universität Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
| | - Oscar McCook
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Helmholtzstraße 8/1, 89081, Ulm, Germany
| | - Peter Radermacher
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Helmholtzstraße 8/1, 89081, Ulm, Germany
| | - Csaba Szabo
- Department of Anesthesiology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX, 77555, USA
| | - Martin Wepler
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Helmholtzstraße 8/1, 89081, Ulm, Germany
| | - Florian Simon
- Institute of Anesthesiological Pathophysiology and Process Engineering, University Hospital Ulm, Helmholtzstraße 8/1, 89081, Ulm, Germany.,Department of Vascular and Endovascular Surgery, Heinrich-Heine-Universität Düsseldorf, Moorenstraße 5, 40225, Düsseldorf, Germany
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Abstract
OBJECTIVES miRNAs are a family of non-coding RNAs that affect cell growth, migration and apoptosis. However, little is known on the behavior of miRNAs in neurons. Hence, this work aimed to investigate the functions and roles of miRNA-451 in neurons induced by ischemia/reperfusion injury. MATERIALS AND METHODS In this study, we established a 12- or 24-hour oxygen and glucose deprivation/reoxygenation (OGD/R) cell model. miR-451 mimic, si-CUGBP Elav-like family member 2 (siCELF2), oeCELF2 and the corresponding negative controls were transfected into the 24-hour OGD/R cells. The transfection efficiency and the relative expression of miR-451 and CELF2 were measured using quantitative reverse transcription PCR and Western blot analysis. Cell viability, apoptosis, oxidative stress and cleaved-caspase-3 expression were assessed using Cell Counting Kit-8, LDH, SOD, malondialdehyde, ROS assays, flow cytometry and Western blot analysis upon miR-451 overexpression, CELF2 silencing or overexpression of both. Bioinformatics analysis and the dual-luciferase reporter assay were used to examine the relationship between CELF2 and miR-451 in the OGD/R cells. RESULTS The results showed that miR-451 was downregulated in the OGD/R cells. The overexpression of miR-451 increased cell viability and SOD activity, but decreased apoptosis rate, levels of LDH, MDA, ROS and cleaved caspase-3 expression. CELF2 silencing inhibited apoptosis and oxidative stress. The results suggested that CELF2 was a target of miR-451, and that CELF2 overexpression alleviated the inhibitory effect of miR-451 on apoptosis and oxidative stress of the OGD/R cells. CONCLUSION The results demonstrated that miR-451 could protect cells against OGD/R-induced apoptosis and oxidative stress by targeting CELF2.
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Affiliation(s)
- Qian Liu
- Department of Neurological Rehabilitation, Gansu Provincial Hospital, Gansu 730000, China
| | - Yaguang Hu
- Department of Pharmacy, Gansu Provincial Maternity and Child-Care Hospital, Gansu 730050, China,
| | - Min Zhang
- Department of Pathology, Gansu Provincial Hospital, Gansu 730000, China
| | - Yousheng Yan
- National Centre for Human Genetic Resources, National Research Institute for Health and Family Planning, Beijing 100089, China
| | - Hongmei Yu
- Department of Neurological Rehabilitation, Gansu Provincial Hospital, Gansu 730000, China
| | - Li Ge
- Department of Neurological Rehabilitation, Gansu Provincial Hospital, Gansu 730000, China
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Surinkaew P, Sawaddiruk P, Apaijai N, Chattipakorn N, Chattipakorn SC. Role of microglia under cardiac and cerebral ischemia/reperfusion (I/R) injury. Metab Brain Dis 2018; 33:1019-1030. [PMID: 29656335 DOI: 10.1007/s11011-018-0232-4] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [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: 12/07/2017] [Accepted: 04/06/2018] [Indexed: 12/27/2022]
Abstract
Both cerebral and cardiac ischemia causes loss of cerebral blood flow, which may lead to neuronal cell damage, neurocognitive impairment, learning and memory difficulties, neurological deficits, and brain death. Although reperfusion is required immediately to restore the blood supply to the brain, it could lead to several detrimental effects on the brain. Several studies demonstrate that microglia activity increases following cerebral and cardiac ischemic/reperfusion (I/R) injury. However, the effects of microglial activation in the brain following I/R remains unclear. Some reports demonstrated that microglia were involved in neurodegeneration and oxidative stress generation, whilst others showed that microglia did not respond to I/R injury. Moreover, microglia are activated in a time-dependent manner, and in a specific brain region following I/R. Recently, several therapeutic approaches including pharmacological interventions and electroacupuncture showed the beneficial effects, while some interventions such as hyperthermia and hyperoxic resuscitation, demonstrated the deteriorated effects on the microglial activity after I/R. Therefore, the present review summarized and discussed those studies regarding the effects of global and focal cerebral as well as cardiac I/R injury on microglia activation, and the therapeutic interventions.
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Affiliation(s)
- Poomarin Surinkaew
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
- Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
- Department of Anesthesiology, Lamphun Hospital, Lamphun, 51000, Thailand
| | - Passakorn Sawaddiruk
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
- Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
- Department of Anesthesiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nattayaporn Apaijai
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
- Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Nipon Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
- Center of Excellence in Cardiac Electrophysiology, Chiang Mai University, Chiang Mai, 50200, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Siriporn C Chattipakorn
- Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand.
- Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Li X, Wang J, Song X, Wu H, Guo P, Jin Z, Wang C, Tang C, Wang Y, Zhang Z. Ketamine ameliorates ischemia-reperfusion injury after liver autotransplantation by suppressing activation of Kupffer cells in rats. Can J Physiol Pharmacol 2018; 96:886-892. [PMID: 29975111 DOI: 10.1139/cjpp-2018-0046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This study aimed to investigate the protective effects of ketamine against hepatic ischemia-reperfusion (I/R) injury by suppressing activation of Kupffer cells (KCs) in rat liver autotransplantation. Male Sprague-Dawley rats were randomized into 3 groups (n = 10 each). Group I, the sham group, received saline. Group II received saline and underwent orthotopic liver autotransplantation (OLAT). Group III received 10 mg/kg ketamine and underwent OLAT. Blood samples were obtained at 3, 6, 12, and 24 h after I/R, and following ALT, AST, LDH, IL-6, TNF-α, IL-1β, and IL-10 in serum were detected. Model rats were sacrificed at the indicated time points and the graft liver tissues were evaluated histologically. KCs were isolated from rat liver tissues, and inflammatory products and proteins of NF-κB signaling pathway were detected using quantitative RT-PCR and Western blotting. Our results showed that ketamine significantly decreased ALT, AST, LDH, IL-6, TNF-α, and IL-1β levels and increased IL-10 level. Furthermore, ketamine alleviated the histopathology changes, by less KC infiltration and lower hepatocyte apoptosis. Moreover, activity of NF-κB signaling pathway in KCs was suppressed. In addition, production of pro- and anti-inflammatory factors is consistent with the results in tissues. Ketamine ameliorated I/R injury after liver transplantation by suppressing activation of KCs in rats.
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Affiliation(s)
- Xinyi Li
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Jin Wang
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Xuemin Song
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Huisheng Wu
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Peipei Guo
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Zhao Jin
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Chengyao Wang
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Chaoliang Tang
- b Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, China; Department of Anesthesiology, The First Affiliated Hospital of USTC; Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, Anhui, China
| | - Yanlin Wang
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
| | - Zongze Zhang
- a Department of Anesthesiology, Zhongnan Hospital of Wuhan University, Wuhan, 430071, Hubei, China
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Liu H, Zhong L, Zhang Y, Liu X, Li J. Rutin attenuates cerebral ischemia-reperfusion injury in ovariectomized rats via estrogen-receptor-mediated BDNF-TrkB and NGF-TrkA signaling. Biochem Cell Biol 2018; 96:672-681. [PMID: 29420916 DOI: 10.1139/bcb-2017-0209] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Rutin, a flavonoid glycoside, has been reported to exert neuroprotective effects. Loss of endogenous estrogen and dysregulation of the estrogen receptor (ER) signaling pathway are associated with the increased risk of stroke in women after menopause. This study was performed to investigate whether rutin could protect against cerebral ischemia by modulating the ER pathway. Ovariectomized (OVX) rats were given intraperitoneal injections of vehicle (dimethyl sulfoxide), rutin (100 mg/kg body mass) or 17β-estradiol (100 μg/kg body mass) for 5 consecutive days. Then, the rats were subjected to middle cerebral artery occlusion (MCAO) for 1 h followed by a 24 h reperfusion to establish the cerebral ischemia-reperfusion (I/R) injury. We found that rutin improved the sensorimotor performance and recognition memory of rats subjected to I/R, decreased the infarct size, and attenuated neuron loss. Rutin treatment also increased the levels of ERα, ERβ, brain-derived neurotrophic factor (BDNF), nerve growth factor (NGF), tropomyosin receptor kinase A (TrkA), TrkB, and phospho-cAMP-responsive element binding protein (p-CREB) in rat hippocampus and cerebral cortex. The protective effects of rutin were comparable to that of 17β-estradiol, and were partially blocked by ICI182780, an ER antagonist. The above results suggest that rutin preconditioning ameliorates cerebral I/R injury in OVX rats through ER-mediated BDNF-TrkB and NGF-TrkA signaling.
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Affiliation(s)
- Hong Liu
- a Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, Heilongjiang Province, P.R. China.,b Postdoctoral Program, Heilongjiang University of Chinese Medicine, Harbin 150040, Heilongjiang Province, P.R. China.,c Key Laboratory of Education Ministry for Myocardial Ischemia, Harbin Medical University, Harbin 150081, Heilongjiang Province, P.R. China
| | - Lili Zhong
- b Postdoctoral Program, Heilongjiang University of Chinese Medicine, Harbin 150040, Heilongjiang Province, P.R. China.,d Department of Pathology, The First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin 150001, Heilongjiang Province, P.R. China
| | - Yuwei Zhang
- e Department of Physiology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, Heilongjiang Province, P.R. China
| | - Xuewei Liu
- f Department of Neuropharmacology, Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar 161006, Heilongjiang Province, P.R. China
| | - Ji Li
- g Department of Formulaology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, Heilongjiang Province, P.R. China
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Li Y, Lou C, Wang W. STIM1 deficiency protects the liver from ischemia/reperfusion injury in mice. Biochem Biophys Res Commun 2018; 496:422-428. [PMID: 29305862 DOI: 10.1016/j.bbrc.2018.01.006] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 01/02/2018] [Indexed: 02/07/2023]
Abstract
Hepatic ischemia reperfusion (I/R) injury is unavoidable in various clinical conditions. Despite considerable investigation, the underlying molecular mechanism revealing liver I/R injury remains elusive. Stromal interaction molecule 1 (STIM1) plays essential role in regulating the induction of cellular responses to a number of stress conditions, including temperature changes, elevated ROS, and hypoxia. Here, to explore if STIM1 is involved in hepatic injury, wild type (WT) and STIM1-knockout (STIM1-/-) mice were subjected to I/R. Our results indicated that the WT mice with hepatic I/R injury showed higher STIM1 expressions from gene and protein levels in liver tissue samples. Similar results were observed in hypoxia-exposed cells in vitro. Significantly, STIM1-/- attenuated hepatic injury compared to the WT mice after I/R, as evidenced by the improved pathological alterations in liver sections. WT mice subjected to liver I/R showed higher serum alanine aminotransferase (ALT) and aminotransferase (AST) levels, as well as pro-inflammatory cytokines, tumor necrosis factor-α (TNF-α), interleukin (IL)-6 and IL-1β, which were significantly reduced by STIM1-/-. In addition, STIM1-/- also decreased the liver mRNA levels of pro-inflammatory cytokines in mice after I/R injury. Furthermore, significantly decreased oxidative stress was found in STIM1-/- mice after I/R injury compared to the WT group of mice, evidenced by the enhanced superoxide dismutase (SOD) activity and the reduced malondialdehyde (MDA) and reactive oxygen species (ROS) levels in liver tissue samples. Moreover, STIM1-/- mice with hepatic I/R injury displayed the down-regulated nuclear factor of activated T cell (NFAT1), Orai1 and cleaved Caspase-3 levels in liver, contributing to apoptosis suppression. The results above were confirmed in hypoxia-treated cells lacking of STIM1 expression. Together, the findings suggested that STIM1-deletion protects the liver from I/R injury in mice through inhibiting inflammation, oxidative stress and apoptosis. STIM1 could be considered as a potential therapeutic target to ameliorate I/R injury.
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Affiliation(s)
- Yanyang Li
- Department of Pediatrics, Huaihe Hospital, Henan University, Kaifeng 475000, China.
| | - Chunyan Lou
- Department of Pediatrics, Huaihe Hospital, Henan University, Kaifeng 475000, China
| | - Weiying Wang
- Department of Pediatrics, Huaihe Hospital, Henan University, Kaifeng 475000, China
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Luo Y, Shang P, Li D. Luteolin: A Flavonoid that Has Multiple Cardio-Protective Effects and Its Molecular Mechanisms. Front Pharmacol 2017; 8:692. [PMID: 29056912 PMCID: PMC5635727 DOI: 10.3389/fphar.2017.00692] [Citation(s) in RCA: 148] [Impact Index Per Article: 21.1] [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: 07/15/2017] [Accepted: 09/19/2017] [Indexed: 01/14/2023] Open
Abstract
Cardiovascular disease (CVD) has become the leading cause of morbidity and mortality worldwide. A well-monitored diet with a sufficient intake of fruits and vegetables has been confirmed as a primary prevention of CVD. Plant constituents such as flavonoids have been shown to confer healthy benefits. Luteolin (Lut), a kind of flavonoid, possesses anti-oxidative, anti-tumor, and anti-inflammatory properties. Recent scientific literature has reported the cardiac protective effects of Lut in vitro and in vivo. Therefore, the aim of this review is to provide an update and detailed overview with cardio-protective molecular mechanisms of Lut with a focus on multiple intrinsic and extrinsic effectors. We further explore how these mechanisms participate in ischemia/reperfusion (I/R) injury, heart failure (HF) and atherosclerosis (AS). A proper understanding of the cardiovascular protective effects and the relative mechanisms of Lut may provide the possibility of new drug design and development for CVD. With the previous studies mainly focused on basic research, we need to advance the prospects of its further clinical utilization against CVD, large prospective clinical trials of Lut are needed to observe its therapeutic effects on patients with I/R injury, HF and AS, especially on the effective therapeutic dosage, and safety of long-term administration.
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Affiliation(s)
- Yuanyuan Luo
- The First Clinical College, Nanjing University of Chinese Medicine, Nanjing, China.,The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Pingping Shang
- Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, China
| | - Dongye Li
- The First Clinical College, Nanjing University of Chinese Medicine, Nanjing, China.,The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China.,Institute of Cardiovascular Disease Research, Xuzhou Medical University, Xuzhou, China
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Kristensen MLV, Kierulf-Lassen C, Nielsen PM, Krag S, Birn H, Nejsum LN, Nørregaard R. Remote ischemic perconditioning attenuates ischemia/reperfusion-induced downregulation of AQP2 in rat kidney. Physiol Rep 2016; 4:4/13/e12865. [PMID: 27405971 PMCID: PMC4945844 DOI: 10.14814/phy2.12865] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Accepted: 06/21/2016] [Indexed: 12/28/2022] Open
Abstract
Renal ischemia/reperfusion (I/R) can lead to impaired urine concentration ability and increased fractional excretion of sodium (FeNa). Local ischemic preconditioning improves renal water and sodium handling after I/R injury. Here, we investigate whether remote ischemic perconditioning (rIPeC) prevents dysregulation of renal water and salt handling in response to I/R injury and mechanisms that may be involved. Rats were subjected to right nephrectomy and randomized into a sham group or an I/R group. In the I/R group, rats were subjected to 37 min of renal ischemia and 3 days of reperfusion. rIPeC was applied to the abdominal aorta. Blood and urine were collected on day 3 postoperatively for clearance studies. The expression of aquaporins (AQPs) and the sodium transporter Na-K-ATPase were analyzed using immunoblotting and immunohistochemistry. I/R injury resulted in polyuria, increased FeNa, and decreased urine osmolality compared to sham rats. rIPeC attenuated the increase in FeNa and the decrease in urine osmolality. Expression of AQP1, AQP2, phosphorylated AQP2 (pAQP2), and Na-K-ATPase was downregulated in I/R rats. rIPeC attenuated the reductions in AQP2 and pAQP2 expression. Immunohistochemistry revealed decreased labeling of Na-K-ATPase in the outer medulla in I/R kidneys compared to kidneys from sham and I/R + rIPeC rats. After renal ischemia, the expression of Na-K-ATPase was substantially reduced in the outer medullary thick ascending limb. In conclusion, our data suggest that rIPeC might prevent dysregulation of renal water and salt handling via regulation of AQP2 expression and phosphorylation as well as via regulation of Na-K-ATPase expression in I/R rat kidneys.
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Affiliation(s)
| | | | - Per Mose Nielsen
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Søren Krag
- Department of Pathology, Aarhus University, Aarhus, Denmark
| | - Henrik Birn
- Department of Biomedicine, Aarhus University, Aarhus, Denmark Department of Renal Medicine, Aarhus University, Aarhus, Denmark
| | - Lene N Nejsum
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Rikke Nørregaard
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Dong W, Yang R, Yang J, Yang J, Ding J, Wu H, Zhang J. Resveratrol pretreatment protects rat hearts from ischemia/reperfusion injury partly via a NALP3 inflammasome pathway. Int J Clin Exp Pathol 2016; 8:8731-41. [PMID: 26464617 DOI: pmid/26464617] [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: 06/22/2015] [Accepted: 07/26/2015] [Indexed: 11/18/2022]
Abstract
Inflammatory responses are key players in myocardial ischemia/reperfusion (I/R) injury. Our previous studies showed that resveratrol alleviated I/R injury in myocardial I/R animal models, but whether the NALP3 inflammasome pathway contributes to the mechanisms remains to be elucidated. In this study, we explored the modulation effect of resveratrol on myocardial I/R-induced inflammatory responses in rats. Myocardial I/R rat animal models were induced by occlusion of the left anterior descending coronary arteries (LADs) for 30 min, followed by 2 h of reperfusion. Resveratrol was administered in different doses (2.5, 5, and 10 mg/kg) at the same time as the onset of reperfusion. The serum concentrations of the trinitrotoluene (TnT) and MB isoenzyme creatine kinase (CK-MB) were detected using an automatic biochemical analyzer. Myocardial ultrastructure and morphology were observed with an electron microscope and a light microscope. Myocardial ischemia and infarct sizes were evaluated using Evans blue and tetrazolium chloride (TTC) staining. The NALP3, Caspase1, interleukin 1β (IL-1β) and interleukin 18 (IL-18) mRNA levels were evaluated using RT-PCR. The NALP3 and Caspase1 protein expression levels were detected by western blotting. The IL-1β and IL-18 content in peripheral blood was measured by enzyme-linked immunosorbent assay (ELISA). The myocardial structure in myocardial ischemia reperfusion injury (MI/RI) rats was extensively damaged. After preconditioning with different concentrations of resveratrol (2.5, 5 and 10 mg/kg), the pathology and morphology were significantly improved in a dose-dependent manner. Our results showed that resveratrol treatment significantly reduced the infarct volume and myocardial fibrosis, resulting in myocardial cells that lined up in a more orderly fashion and dose-dependent decreases in TnT and CK-MB levels in the serum of the I/R rats. Resveratrol also significantly modulated mRNA and protein levels by down-regulating NALP3 and Caspase1 expression and IL-1β and IL-18 activation. These results suggest that the NALP3 inflammasome is activated during the myocardial I/R injury process and that the secretion of the inflammatory cytokines IL-1β and IL-18 mediates the cascade inflammatory response. Resveratrol may play an important role in protecting the myocardium against I/R injury in rats by inhibiting the expression and activation of the NALP3 inflammatory body. Therefore, the attenuation of the inflammatory response may be involved in the cardioprotective mechanisms of resveratrol in response to myocardial I/R injury.
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Affiliation(s)
- Wusong Dong
- Department of Cardiology, The First College of Clinical Medicine, China Three Gorges University Yichang, Hubei, China
| | - Rui Yang
- Department of Medicine, University of Vermont Burlington, vt, USA ; Tongji Medical College, Huazhong University of Science and Technology Wuhan, Hubei Province, China
| | - Jian Yang
- Department of Cardiology, The First College of Clinical Medicine, China Three Gorges University Yichang, Hubei, China
| | - Jun Yang
- Department of Cardiology, The First College of Clinical Medicine, China Three Gorges University Yichang, Hubei, China
| | - Jiawang Ding
- Department of Cardiology, The First College of Clinical Medicine, China Three Gorges University Yichang, Hubei, China
| | - Hui Wu
- Department of Cardiology, The First College of Clinical Medicine, China Three Gorges University Yichang, Hubei, China
| | - Jing Zhang
- Department of Cardiology, The First College of Clinical Medicine, China Three Gorges University Yichang, Hubei, China
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Fan G, Yu J, Asare PF, Wang L, Zhang H, Zhang B, Zhu Y, Gao X. Danshensu alleviates cardiac ischaemia/reperfusion injury by inhibiting autophagy and apoptosis via activation of mTOR signalling. J Cell Mol Med 2016; 20:1908-19. [PMID: 27385290 PMCID: PMC5020629 DOI: 10.1111/jcmm.12883] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 04/09/2016] [Indexed: 12/20/2022] Open
Abstract
The traditional Chinese medicine Danshensu (DSS) has a protective effect on cardiac ischaemia/reperfusion (I/R) injury. However, the molecular mechanisms underlying the DSS action remain undefined. We investigated the potential role of DSS in autophagy and apoptosis using cardiac I/R injury models of cardiomyocytes and isolated rat hearts. Cultured neonatal rat cardiomyocytes were subjected to 6 hrs of hypoxia followed by 18 hrs of reoxygenation to induce cell damage. The isolated rat hearts were used to perform global ischaemia for 30 min., followed by 60 min. reperfusion. Ischaemia/reperfusion injury decreased the haemodynamic parameters on cardiac function, damaged cardiomyocytes or even caused cell death. Pre-treatment of DSS significantly improved cell survival and protected against I/R-induced deterioration of cardiac function. The improved cell survival upon DSS treatment was associated with activation of mammalian target of rapamycin (mTOR) (as manifested by increased phosphorylation of S6K and S6), which was accompanied with attenuated autophagy flux and decreased expression of autophagy- and apoptosis-related proteins (including p62, LC3-II, Beclin-1, Bax, and Caspase-3) at both protein and mRNA levels. These results suggest that alleviation of cardiac I/R injury by pre-treatment with DSS may be attributable to inhibiting excessive autophagy and apoptosis through mTOR activation.
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Affiliation(s)
- Guanwei Fan
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Jiahui Yu
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Patrick Fordjour Asare
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lingyan Wang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Han Zhang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Boli Zhang
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yan Zhu
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China. .,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China. .,Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
| | - Xiumei Gao
- State Key Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China. .,Ministry of Education Key Laboratory of Pharmacology of Traditional Chinese Medical Formulae, Tianjin University of Traditional Chinese Medicine, Tianjin, China. .,Institute of Traditional Chinese Medicine Research, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
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Yu H, Shi L, Qi G, Zhao S, Gao Y, Li Y. Gypenoside Protects Cardiomyocytes against Ischemia-Reperfusion Injury via the Inhibition of Mitogen-Activated Protein Kinase Mediated Nuclear Factor Kappa B Pathway In Vitro and In Vivo. Front Pharmacol 2016; 7:148. [PMID: 27313532 PMCID: PMC4887463 DOI: 10.3389/fphar.2016.00148] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [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: 02/17/2016] [Accepted: 05/19/2016] [Indexed: 11/13/2022] Open
Abstract
Gypenoside (GP) is the major effective component of Gynostemma pentaphyllum and has been shown to encompass a variety of pharmacological activities. In this study, we investigated whether GP is able to protect cardiomyocytes against injury myocardial ischemia-reperfusion (I/R) injury by using in vitro oxygen-glucose deprivation-reoxygenation (OGD/R) H9c2 cell model and in vivo myocardial I/R rat model. We found that GP pre-treatment alleviated the impairments on the cardiac structure and function in I/R injured rats. Moreover, pre-treatment with GP significantly inhibited IκB-α phosphorylation and nuclear factor (NF)-κB p65 subunit translocation into nuclei. GP and the MAPK pathway inhibitors also reduced the phosphorylation of ERK, JNK, and p38 in vitro. Specific inhibition of ERK, JNK, and p38 increased the cell viability of OGD/R injured cells. Taken together, our data demonstrated that GP protects cardiomyocytes against I/R injury by inhibiting NF-κB p65 activation via the MAPK signaling pathway both in vitro and in vivo. These findings suggest that GP may be a promising agent for the prevention or treatment of myocardial I/R injury.
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Affiliation(s)
- Haijie Yu
- Department of Cardiology, The First Affiliated Hospital of China Medical University Shenyang, China
| | - Liye Shi
- Department of Geriatrics, The First Affiliated Hospital of China Medical University Shenyang, China
| | - Guoxian Qi
- Department of Geriatrics, The First Affiliated Hospital of China Medical University Shenyang, China
| | - Shijie Zhao
- Department of Geriatrics, The First Affiliated Hospital of China Medical University Shenyang, China
| | - Yuan Gao
- Department of Cardiology, The First Affiliated Hospital of China Medical University Shenyang, China
| | - Yuzhe Li
- Department of Cardiology, The First Affiliated Hospital of China Medical University Shenyang, China
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50
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Isbambetov A, Baimakhanov Z, Soyama A, Hidaka M, Sakai Y, Takatsuki M, Kuroki T, Eguchi S. Equal distribution of mesenchymal stem cells after hepatic ischemia-reperfusion injury. J Surg Res 2016; 203:360-7. [PMID: 27363644 DOI: 10.1016/j.jss.2016.03.057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 03/15/2016] [Accepted: 03/24/2016] [Indexed: 01/20/2023]
Abstract
BACKGROUND Liver ischemia-reperfusion (I/R) injury is one of the major causes of hepatocellular injury-related mortality and morbidity after liver transplantation. Mesenchymal stem cells (MSCs) have been shown to reduce liver I/R injury and improve regeneration. The purpose of the present study was to investigate the difference in the distribution of systemically delivered MSCs in the recipient's liver between the ischemic injury area and nonischemic area. MATERIAL AND METHODS Fishers' rats (7-8 week of age) were used as donors of MSCs and recipients. Bone marrow-derived MSCs were isolated from the donor's femur. Before systemic administration, MSCs were labeled with the fluorescent dye PKH26. The rats were divided into four groups: (1) I/R injury + MSC group, (2) MSC only, without I/R injury, (3) I/R injury + saline group, and (4) the Sham group. I/R injury was performed by clamping the inflow vascular structures of the left and middle lobes of the recipient's liver for 60 min. The right lobe was considered as a nonischemic part. Subsequently, 1.5 × 10(6) of MSCs or saline (NaCl, 0.9%) was administrated via the rat's tail vein. Thereafter, the rats were killed after days one, three, or seven for the analyses. RESULTS A fluorescent microscopy assay for labeled MSCs showed positive cells in both ischemic and nonischemic parts of the recipient's liver. The number of cells was significantly higher in the I/R injury + MSC group compared with the only MSC, without I/R injury group. Immunohistochemical staining showed that there was no significant difference in the proliferation of Ki-67-positive cells between the I/R + MSCs and I/R + saline groups. In addition, the serum transaminase levels were not different between the I/R + MSCs and I/R + saline groups. CONCLUSIONS After partial liver I/R injury, transplanted MSCs migrate equally to the ischemic and nonischemic parts of the recipient's liver. Considering the unique ability of the liver to regenerate, both parts of the liver presumably receive signals for regeneration.
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