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Song X, Fan C, Wei C, Yu W, Tang J, Ma F, Chen Y, Wu B. Mitochondria fission accentuates oxidative stress in hyperglycemia-induced H9c2 cardiomyoblasts in vitro by regulating fatty acid oxidation. Cell Biol Int 2024. [PMID: 38922770 DOI: 10.1002/cbin.12204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 04/14/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024]
Abstract
Oxidative stress plays a pivotal role in the development of diabetic cardiomyopathy (DCM). Previous studies have revealed that inhibition of mitochondrial fission suppressed oxidative stress and alleviated mitochondrial dysfunction and cardiac dysfunction in diabetic mice. However, no research has confirmed whether mitochondria fission accentuates hyperglycemia-induced cardiomyoblast oxidative stress through regulating fatty acid oxidation (FAO). We used H9c2 cardiomyoblasts exposed to high glucose (HG) 33 mM to simulate DCM in vitro. Excessive mitochondrial fission, poor cell viability, and lipid accumulation were observed in hyperglycemia-induced H9c2 cardiomyoblasts. Also, the cells were led to oxidative stress injury, lower adenosine triphosphate (ATP) levels, and apoptosis. Dynamin-related protein 1 (Drp1) short interfering RNA (siRNA) decreased targeted marker expression, inhibited mitochondrial fragmentation and lipid accumulation, suppressed oxidative stress, reduced cardiomyoblast apoptosis, and improved cell viability and ATP levels in HG-exposed H9c2 cardiomyoblasts, but not in carnitine palmitoyltransferase 1 (CPT1) inhibitor etomoxir treatment cells. We also found subcellular localization of CPT1 on the mitochondrial membrane, FAO, and levels of nicotinamide adenine dinucleotide phosphate (NADPH) were suppressed after exposure to HG treatment, whereas Drp1 siRNA normalized mitochondrial CPT1, FAO, and NADPH. However, the blockade of FAO with etomoxir abolished the above effects of Drp1 siRNA in hyperglycemia-induced H9c2 cardiomyoblasts. The preservation of mitochondrial function through the Drp1/CPT1/FAO pathway is the potential mechanism of inhibited mitochondria fission in attenuating oxidative stress injury of hyperglycemia-induced H9c2 cardiomyoblasts.
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Affiliation(s)
- Xiaogang Song
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu, China
- Department of Cardiology, Xi'an Central Hospital, Xi'an, Shaanxi, China
- Department of Cardiology, Second Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Chongxi Fan
- Department of Gastroenterology, Air Force Medical Center, Beijing, China
| | - Chao Wei
- Department of Neurology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Wuhan Yu
- Department of General Surgery, Second Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Jichao Tang
- Key Laboratory of Stem Cells and Gene Drugs of Gansu Province, The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu, China
| | - Feng Ma
- Department of Cardiology, Xi'an Central Hospital, Xi'an, Shaanxi, China
| | - Yongqing Chen
- Department of Cardiology, Gansu Provincial Central Hospital, Lanzhou, Gansu, China
| | - Bing Wu
- Department of Geriatrics, The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, Gansu, China
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Zhao K, Tang J, Xie H, Liu L, Qin Q, Sun B, Qin ZH, Sheng R, Zhu J. Nicotinamide riboside attenuates myocardial ischemia-reperfusion injury via regulating SIRT3/SOD2 signaling pathway. Biomed Pharmacother 2024; 175:116689. [PMID: 38703508 DOI: 10.1016/j.biopha.2024.116689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/06/2024] Open
Abstract
Ischemic heart disease invariably leads to devastating damage to human health. Nicotinamide ribose (NR), as one of the precursors of NAD+ synthesis, has been discovered to exert a protective role in various neurological and cardiovascular disorders. Our findings demonstrated that pretreatment with 200 mg/kg NR for 3 h significantly reduced myocardial infarct area, decreased levels of CK-MB and LDH in serum, and improved cardiac function in the rats during myocardial ischemia-reperfusion (I/R) injury. Meanwhile, 0.5 mM NR also effectively increased the viability and decreased the LDH release of H9c2 cells during OGD/R. We had provided evidence that NR pretreatment could decrease mitochondrial reactive oxygen species (mtROS) production and MDA content, and enhance SOD activity, thereby mitigating mitochondrial damage and inhibiting apoptosis during myocardial I/R injury. Further investigations revealed that NR increased NAD+ content and upregulated SIRT3 protein expression in myocardium. Through using of SIRT3 small interfering RNA and the SIRT3 deacetylase activity inhibitor 3-TYP, we had confirmed that the cardioprotective effect of NR on cardiomyocytes was largely dependent on the inhibition of mitochondrial oxidative stress via SIRT3-SOD2 axis. Overall, our study suggested that exogenous supplementation with NR mitigated mitochondrial damage and inhibited apoptosis during myocardial I/R injury by reducing mitochondrial oxidative stress via SIRT3-SOD2-mtROS pathway.
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Affiliation(s)
- Kai Zhao
- Department of Anesthesiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jie Tang
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
| | - Hong Xie
- Department of Anesthesiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Lin Liu
- Department of Anesthesiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Qin Qin
- Department of Anesthesiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Bo Sun
- Department of Anesthesiology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Zheng-Hong Qin
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
| | - Rui Sheng
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China.
| | - Jiang Zhu
- Department of Anesthesiology, The Second Affiliated Hospital of Soochow University, Suzhou, China.
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Wei J, Zheng W, Teng C, An X, Li L, Zhong P, Peng C, Zhuge S, Akoto Ampadu J, Yu C, Cai X. Exogenous NADPH could mitigate pyroptosis-induced brain injury in fetal mice exposed to gestational intermittent hypoxia. Int Immunopharmacol 2024; 135:112311. [PMID: 38781607 DOI: 10.1016/j.intimp.2024.112311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 05/14/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
OBJECTIVE Obstructive Sleep Apnea (OSA) during pregnancy is characterized by intermittent hypoxia (IH) during sleep and will lead to the rise of oxidative stress in the fetal body. Pyroptosis, a type of inflammatory and programmable cell death mediated by Gasdermin D (GSDMD), plays a substantial role in oxygen deprivation's contribution to neural system damage. Existing research shows that Nicotinamide Adenine Dinucleotide Phosphate (NADPH) plays a protective role in alleviating brain tissue pyroptosis. We speculate that exogenous NADPH may play a protective role in OSA during pregnancy. METHODS A model of GIH group was established to simulate the pathophysiological mechanisms of OSA during pregnant and AIR group was established by giving the same frequency. Sham group was established by injecting NS and the NADPH group was established and given exogenous NADPH. We utilized the Morris Water Maze to assess cognitive function impairment, Luxol Fast Blue (LBF) staining to confirm myelin sheath formation, TUNEL staining to examine cell death in fetal mice brain tissue, and Western blotting to detect pertinent protein expressions. RESULTS The GIH group offspring exhibited decreases in spatial learning and memory abilities, reduced numbers of oligodendrocytes and formed myelin, as well as increased expression of pyroptosis-related proteins. The NADPH group offspring showed restoration in spatial learning and memory abilities increased counts of oligodendrocytes and formed myelin sheaths, in addition to decreased expression of pyroptosis-related. CONCLUSIONS This study demonstrates that early injection of exogenous NADPH can alleviate the damage to fetal brain development caused by gestational intermittent hypoxia (GIH).
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Affiliation(s)
- Jiayun Wei
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Weikun Zheng
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Chenjiong Teng
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Xueqian An
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Lingling Li
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Peipei Zhong
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Chenlei Peng
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Shurui Zhuge
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Janet Akoto Ampadu
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China
| | - Chenyi Yu
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China.
| | - Xiaohong Cai
- Department of Pediatrics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 109 Xueyuan Western Road, Wenzhou, Zhejiang 325027, PR China; The second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, PR China.
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Piao C, Wang Y, Lu X, Liu T, Ma Y, Li Y, Zhang J, Wang H. Met-Exo attenuates mitochondrial dysfunction after hepatic ischemia-reperfusion injury in rats by modulating AMPK/SIRT1 signaling pathway. Free Radic Biol Med 2024; 213:430-442. [PMID: 38301977 DOI: 10.1016/j.freeradbiomed.2024.01.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Hepatic ischemia-reperfusion injury (IRI) results in significant postoperative liver dysfunction, and the intricate mechanism of IRI poses challenges in developing effective therapeutic drugs. Mitigating the damage caused by hepatic IRI and promoting the repair of postoperative liver injury have become focal points in recent years, holding crucial clinical significance. Adipose mesenchymal stem cell derived exosomes (ADSCs-Exo) and metformin (Met) can play a mitochondrial protective role in the treatment of hepatic IRI, but whether there is a synergistic mechanism for their intervention is not yet known. Combining the unique advantages of exosomes as drug carriers, the aim of this study was to investigate the protective effects and mechanisms of the constructed Met and ADSCs-Exo complex (Met-Exo) on the liver IRI combined with partial resection injury in rat and hypoxic reoxygenation injury of rat primary hepatocytes (HCs). In this study, firstly, we detected that mitochondrial morphology and function were severely affected in hepatic tissues after hepatic IRI combined with partial resection, and then verified by in vitro experiments that Met-Exo could promote mitochondrial biosynthesis and fusion-associated protein expression and inhibit mitochondrial fission-related protein expression by modulating the AMPK/SIRT1 signalling pathway. This indicates that ADSCs-Exo can not only play a targeting role as a drug carrier but also has a great potential to act as a vehicle to act synergistically with drugs in the treatment of tissue and organ damage, which provides a new therapeutic strategy and experimental basis for the treatment of liver injury in medical science and clinical veterinary.
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Affiliation(s)
- Chenxi Piao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Yue Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Xiangyu Lu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Tao Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Yajun Ma
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Yuepeng Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Jiantao Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China
| | - Hongbin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, P.R. China.
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5
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Bei Y, Wang H, Liu Y, Su Z, Li X, Zhu Y, Zhang Z, Yin M, Chen C, Li L, Wei M, Meng X, Liang X, Huang Z, Cao RY, Wang L, Li G, Cretoiu D, Xiao J. Exercise-Induced miR-210 Promotes Cardiomyocyte Proliferation and Survival and Mediates Exercise-Induced Cardiac Protection against Ischemia/Reperfusion Injury. RESEARCH (WASHINGTON, D.C.) 2024; 7:0327. [PMID: 38410280 PMCID: PMC10895486 DOI: 10.34133/research.0327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/01/2024] [Indexed: 02/28/2024]
Abstract
Exercise can stimulate physiological cardiac growth and provide cardioprotection effect in ischemia/reperfusion (I/R) injury. MiR-210 is regulated in the adaptation process induced by exercise; however, its impact on exercise-induced physiological cardiac growth and its contribution to exercise-driven cardioprotection remain unclear. We investigated the role and mechanism of miR-210 in exercise-induced physiological cardiac growth and explored whether miR-210 contributes to exercise-induced protection in alleviating I/R injury. Here, we first observed that regular swimming exercise can markedly increase miR-210 levels in the heart and blood samples of rats and mice. Circulating miR-210 levels were also elevated after a programmed cardiac rehabilitation in patients that were diagnosed of coronary heart diseases. In 8-week swimming model in wild-type (WT) and miR-210 knockout (KO) rats, we demonstrated that miR-210 was not integral for exercise-induced cardiac hypertrophy but it did influence cardiomyocyte proliferative activity. In neonatal rat cardiomyocytes, miR-210 promoted cell proliferation and suppressed apoptosis while not altering cell size. Additionally, miR-210 promoted cardiomyocyte proliferation and survival in human embryonic stem cell-derived cardiomyocytes (hESC-CMs) and AC16 cell line, indicating its functional roles in human cardiomyocytes. We further identified miR-210 target genes, cyclin-dependent kinase 10 (CDK10) and ephrin-A3 (EFNA3), that regulate cardiomyocyte proliferation and apoptosis. Finally, miR-210 KO and WT rats were subjected to swimming exercise followed by I/R injury. We demonstrated that miR-210 crucially contributed to exercise-driven cardioprotection against I/R injury. In summary, this study elucidates the role of miR-210, an exercise-responsive miRNA, in promoting the proliferative activity of cardiomyocytes during physiological cardiac growth. Furthermore, miR-210 plays an essential role in mediating the protective effects of exercise against cardiac I/R injury. Our findings suggest exercise as a potent nonpharmaceutical intervention for inducing miR-210, which can alleviate I/R injury and promote cardioprotection.
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Affiliation(s)
- Yihua Bei
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Medicine,
Shanghai University, Shanghai 200444, China
| | - Hongyun Wang
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Medicine,
Shanghai University, Shanghai 200444, China
| | - Yang Liu
- Department of Cardiology, Shanghai Tongji Hospital,
Tongji University School of Medicine, Shanghai 200065, China
| | - Zhuhua Su
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Medicine,
Shanghai University, Shanghai 200444, China
| | - Xinpeng Li
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Medicine,
Shanghai University, Shanghai 200444, China
- School of Environmental and Chemical Engineering,
Shanghai University, Shanghai 200444, China
| | - Yujiao Zhu
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Medicine,
Shanghai University, Shanghai 200444, China
| | - Ziyi Zhang
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Medicine,
Shanghai University, Shanghai 200444, China
| | - Mingming Yin
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
| | - Chen Chen
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
| | - Lin Li
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
| | - Meng Wei
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
| | - Xiangmin Meng
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
| | - Xuchun Liang
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
| | - Zhenzhen Huang
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
| | - Richard Yang Cao
- Cardiac Rehabilitation Program, Shanghai Xuhui Central Hospital/Zhongshan-Xuhui Hospital,
Fudan University/Shanghai Clinical Research Center, Shanghai 200031, China
| | - Lei Wang
- Department of Rehabilitation Medicine,
Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Guoping Li
- Cardiovascular Division of the Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | - Dragos Cretoiu
- Department of Medical Genetics,
Carol Davila University of Medicine and Pharmacy, Bucharest 020031, Romania
- Materno-Fetal Assistance Excellence Unit, Alessandrescu-Rusescu National Institute for Mother and Child Health, Bucharest 011062, Romania
| | - Junjie Xiao
- Institute of Geriatrics (Shanghai University), Affiliated Nantong Hospital of Shanghai University (The Sixth People's Hospital of Nantong) and School of Life Science, Shanghai University, Nantong 226011, China
- Joint International Research Laboratory of Biomaterials and Biotechnology in Organ Repair (Ministry of Education),
Shanghai University, Shanghai 200444, China
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, Shanghai Engineering Research Center of Organ Repair, School of Medicine,
Shanghai University, Shanghai 200444, China
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6
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Yin X, Guo Z, Song C. AMPK, a key molecule regulating aging-related myocardial ischemia-reperfusion injury. Mol Biol Rep 2024; 51:257. [PMID: 38302614 DOI: 10.1007/s11033-023-09050-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 10/10/2023] [Indexed: 02/03/2024]
Abstract
Aging leads to the threat of more diseases to the biological anatomical structure and the decline of disease resistance, increasing the incidence and mortality of myocardial ischemia-reperfusion injury (MI/RI). Moreover, MI/RI promotes damage to an aging heart. Notably, 5'-adenosine monophosphate-activated protein kinase (AMPK) regulates cellular energy metabolism, stress response, and protein metabolism, participates in aging-related signaling pathways, and plays an essential role in ischemia-reperfusion (I/R) injury diseases. This study aims to introduce the aging theory, summarize the interaction between aging and MI/RI, and describe the crosstalk of AMPK in aging and MI/RI. We show how AMPK can offer protective effects against age-related stressors, lifestyle factors such as alcohol consumption and smoking, and hypertension. We also review some of the clinical prospects for the development of interventions that harness the effect of AMPK to treat MI/RI and other age-related cardiovascular diseases.
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Affiliation(s)
- Xiaorui Yin
- Department of Cardiology, Second Hospital of Jilin University, No.218 Ziqiang Street, Changchun, 130041, China
| | - Ziyuan Guo
- Department of Cardiology, Second Hospital of Jilin University, No.218 Ziqiang Street, Changchun, 130041, China
| | - Chunli Song
- Department of Cardiology, Second Hospital of Jilin University, No.218 Ziqiang Street, Changchun, 130041, China.
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7
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Qian K, Tang J, Ling YJ, Zhou M, Yan XX, Xie Y, Zhu LJ, Nirmala K, Sun KY, Qin ZH, Sheng R. Exogenous NADPH exerts a positive inotropic effect and enhances energy metabolism via SIRT3 in pathological cardiac hypertrophy and heart failure. EBioMedicine 2023; 98:104863. [PMID: 37950995 PMCID: PMC10663691 DOI: 10.1016/j.ebiom.2023.104863] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/18/2023] [Accepted: 10/18/2023] [Indexed: 11/13/2023] Open
Abstract
BACKGROUND Therapies are urgently required to ameliorate pathological cardiac hypertrophy and enhance cardiac function in heart failure. Our preliminary experiments have demonstrated that exogenous NADPH exhibits a positive inotropic effect on isolated heart. This study aims to investigate the positive inotropic effects of NADPH in pathological cardiac hypertrophy and heart failure, as well as the underlying mechanisms involved. METHODS Endogenous plasma NADPH contents were determined in patients with chronic heart failure and control adults. The positive inotropic effects of NADPH were investigated in isolated toad heart or rat heart. The effects of NADPH were investigated in isoproterenol (ISO)-induced cardiac hypertrophy or transverse aortic constriction (TAC)-induced heart failure. The underlying mechanisms of NADPH were studied using SIRT3 knockout mice, echocardiography, Western blotting, transmission electron microscopy, and immunoprecipitation. FINDINGS The endogenous NADPH content in the blood of patients and animals with pathological cardiac hypertrophy or heart failure was significantly reduced compared with age-sex matched control subjects. Exogenous NADPH showed positive inotropic effects on the isolated normal and failing hearts, while antagonism of ATP receptor partially abolished the positive inotropic effect of NADPH. Exogenous NADPH administration significantly reduced heart weight indices, and improved cardiac function in the mice with pathological cardiac hypertrophy or heart failure. NADPH increased SIRT3 expression and activity, deacetylated target proteins, improved mitochondrial function and facilitated ATP production in the hypertrophic myocardium. Importantly, inhibition of SIRT3 abolished the positive inotropic effect of NADPH, and the anti-heart failure effect of NADPH was significantly reduced in the SIRT3 Knockout mice. INTERPRETATION Exogenous NADPH shows positive inotropic effect and improves energy metabolism via SIRT3 in pathological cardiac hypertrophy and heart failure. NADPH thus may be one of the potential candidates for the treatment of pathological cardiac hypertrophy or heart failure. FUNDING This work was supported by grants from the National Natural Science Foundation of China (No. 81973315, 82173811, 81730092), Natural Science Foundation of Jiangsu Higher Education (20KJA310008), Jiangsu Key Laboratory of Neuropsychiatric Diseases (BM2013003) and the Priority Academic Program Development of the Jiangsu Higher Education Institutes (PAPD).
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Affiliation(s)
- Ke Qian
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Jie Tang
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Yue-Juan Ling
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Ming Zhou
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Xin-Xin Yan
- Department of Cardiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215008, China
| | - Yu Xie
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Lu-Jia Zhu
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Koju Nirmala
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Kang-Yun Sun
- Department of Cardiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, 215008, China
| | - Zheng-Hong Qin
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China
| | - Rui Sheng
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China.
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8
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Yin ZY, Fu T, He SM, Fu L, Li XZ, Xu L, Du L, Yang TT, Zhu X, Wang C, Qiao WL, Tang ZQ, Zhang XY, Li K, Zhang XY, Gong Z, Zhou XY, Zhang B, Sun H. 16α-OHE1, a novel oestrogen metabolite, attenuates dysfunction of left ventricle contractility via regulation of autophagy after myocardial ischemia and reperfusion. Int J Cardiol 2023; 388:131123. [PMID: 37330017 DOI: 10.1016/j.ijcard.2023.131123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 06/03/2023] [Accepted: 06/14/2023] [Indexed: 06/19/2023]
Abstract
BACKGROUND Myocardial ischemia-reperfusion (MI/R) can exacerbate the initial cardiac damage in the myocardial functional changes, including dysfunction of left ventricular contractility. Oestrogen has been proven to protect the cardiovascular system. However, whether the oestrogen or its metabolites play the main role in attenuating dysfunction of left ventricular contractility is unknown. METHODS AND RESULTS This study used the LC-MS/MS to detect oestrogen and its metabolites in clinical serum samples (n = 62) with heart diseases. After correlation analysis with markers of myocardial injury including cTnI (P < 0.01), CK-MB (P < 0.05), and D-Dimer (P < 0.001), 16α-OHE1 was identified. The result from LC-MS/MS in female and ovariectomised (OVX) rat serum samples (n = 5) matched the findings in patients. In MI/R model of animal, the recovery of left ventricular developed pressure (LVDP), rate pressure product (RPP), dp/dtmax and dp/dtmin after MI/R in OVX or male group were worsened than those in female group. Also, the infarction area of OVX or male group was larger than that in females (n = 5, p < 0.01). Furthermore, LC3 II in the left ventricle of OVX and male group was lower than that in females (n = 5, p < 0.01) by immunofluorescence. In H9C2 cells, after the application of 16α-OHE1, the number of autophagosomes was further increased and other organelles improved in MI/R. Simultaneously, LC3 II, Beclin1, ATG5, and p-AMPK/AMPK were increased, and p-mTOR/mTOR was decreased (n = 3, p < 0.01) by Simple Western. CONCLUSION 16α-OHE1 could attenuate left ventricle contractility dysfunction via autophagy regulation after MI/R, which also offered fresh perspectives on therapeutical treatment for attenuating MI/R injury.
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Affiliation(s)
- Ze-Yuan Yin
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK; Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Tong Fu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China; Departments of Gynecology and Obstetrics, Xuzhou Central Hospital, Xuzhou, China
| | - Shi-Min He
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China; Departments of Gynecology and Obstetrics, Xuzhou Central Hospital, Xuzhou, China
| | - Lu Fu
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | - Xi-Zhi Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Liu Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Lei Du
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Ting-Ting Yang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Xia Zhu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Cheng Wang
- Department of Cardiovascular Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Wei-Li Qiao
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | - Zi-Qing Tang
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | - Xiao-Yan Zhang
- Department of Physiology, Xuzhou Medical University, Xuzhou, China
| | - Kun Li
- Department of Bioinformatics, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xin-Yuan Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Zheng Gong
- The School of Public Affairs and Governance, Silliman University, Dumaguete, Philippines
| | - Xue-Yan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China.
| | - Bei Zhang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China; Departments of Gynecology and Obstetrics, Xuzhou Central Hospital, Xuzhou, China.
| | - Hong Sun
- Department of Physiology, Xuzhou Medical University, Xuzhou, China.
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9
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Qiu Z, Li Y, Fu Y, Yang Y. Research progress of AMP-activated protein kinase and cardiac aging. Open Life Sci 2023; 18:20220710. [PMID: 37671091 PMCID: PMC10476487 DOI: 10.1515/biol-2022-0710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 07/27/2023] [Accepted: 08/05/2023] [Indexed: 09/07/2023] Open
Abstract
The process of aging is marked by a gradual deterioration in the physiological functions and functional reserves of various tissues and organs, leading to an increased susceptibility to diseases and even death. Aging manifests in a tissue- and organ-specific manner, and is characterized by varying rates and direct and indirect interactions among different tissues and organs. Cardiovascular disease (CVD) is the leading cause of death globally, with older adults (aged >70 years) accounting for approximately two-thirds of CVD-related deaths. The prevalence of CVD increases exponentially with an individual's age. Aging is a critical independent risk factor for the development of CVD. AMP-activated protein kinase (AMPK) activation exerts cardioprotective effects in the heart and restores cellular metabolic functions by modulating gene expression and regulating protein levels through its interaction with multiple target proteins. Additionally, AMPK enhances mitochondrial function and cellular energy status by facilitating the utilization of energy substrates. This review focuses on the role of AMPK in the process of cardiac aging and maintaining normal metabolic levels and redox homeostasis in the heart, particularly in the presence of oxidative stress and the invasion of inflammatory factors.
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Affiliation(s)
- Zhengqi Qiu
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR 999078, China
| | - Yufei Li
- Faculty of Medicine, Macau University of Science and Technology, Taipa, Macao SAR 999078, China
| | - Yancheng Fu
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen University, Shenzhen518060, China
| | - Yanru Yang
- Guangdong Key Laboratory of Genome Stability and Human Disease Prevention, Carson International Cancer Center, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Health Science Center, Shenzhen University, Shenzhen518060, China
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10
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Li X, Ou W, Xie M, Yang J, Li Q, Li T. Nanomedicine-Based Therapeutics for Myocardial Ischemic/Reperfusion Injury. Adv Healthc Mater 2023; 12:e2300161. [PMID: 36971662 DOI: 10.1002/adhm.202300161] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 03/05/2023] [Indexed: 03/29/2023]
Abstract
Myocardial ischemic/reperfusion (IR) injury is a global cardiovascular disease with high mortality and morbidity. Therapeutic interventions for myocardial ischemia involve restoring the occluded coronary artery. However, reactive oxygen species (ROS) inevitably impair the cardiomyocytes during the ischemic and reperfusion phases. Antioxidant therapy holds great promise against myocardial IR injury. The current therapeutic methodologies for ROS scavenging depend predominantly on administering antioxidants. Nevertheless, the intrinsic drawbacks of antioxidants limit their further clinical transformation. The use of nanoplatforms with versatile characteristics greatly benefits drug delivery in myocardial ischemic therapy. Nanoplatform-mediated drug delivery significantly improves drug bioavailability, increases therapeutic index, and reduces systemic toxicity. Nanoplatforms can be specifically and reasonably designed to enhance molecule accumulation at the myocardial site. The present review initially summarizes the mechanism of ROS generation during the process of myocardial ischemia. The understanding of this phenomenon will facilitate the advancement of innovative therapeutic strategies against myocardial IR injury. The latest developments in nanomedicine for treating myocardial ischemic injury are then discussed. Finally, the current challenges and perspectives in antioxidant therapy for myocardial IR injury are addressed.
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Affiliation(s)
- Xi Li
- Department of Anesthesiology, Laboratory of Mitochondria and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, 610041, P. R. China
| | - Wei Ou
- Department of Anesthesiology, Laboratory of Mitochondria and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, 610041, P. R. China
- Department of Anesthesiology, Nanchong Central Hospital, Nanchong, 637000, P. R. China
| | - Maodi Xie
- Department of Anesthesiology, Laboratory of Mitochondria and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, 610041, P. R. China
| | - Jing Yang
- Department of Anesthesiology, Laboratory of Mitochondria and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, 610041, P. R. China
| | - Qian Li
- Department of Anesthesiology, Laboratory of Mitochondria and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, 610041, P. R. China
| | - Tao Li
- Department of Anesthesiology, Laboratory of Mitochondria and Metabolism, National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, 610041, P. R. China
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11
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Zhang YL, An Y, Sun LJ, Qu HL, Li X, He XT, Wu RX, Chen FM, Tian BM, Yin Y. NADPH-dependent ROS accumulation contributes to the impaired osteogenic differentiation of periodontal ligament stem cells under high glucose conditions. Front Endocrinol (Lausanne) 2023; 14:1152845. [PMID: 37351108 PMCID: PMC10282952 DOI: 10.3389/fendo.2023.1152845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/19/2023] [Indexed: 06/24/2023] Open
Abstract
Diabetes mellitus is an established risk factor for periodontal disease that can aggravate the severity of periodontal inflammation and accelerate periodontal destruction. The chronic high glucose condition is a hallmark of diabetes-related pathogenesis, and has been demonstrated to impair the osteogenic differentiation of periodontal ligament stem cells (PDLSCs), leading to delayed recovery of periodontal defects in diabetic patients. Reactive oxygen species (ROS) are small molecules that can influence cell fate determination and the direction of cell differentiation. Although excessive accumulation of ROS has been found to be associated with high glucose-induced cell damage, the underlying mechanisms remain unclear. Nicotinamide adenine dinucleotide phosphate (NADPH) is an important electron donor and functions as a critical ROS scavenger in antioxidant systems. It has been identified as a key mediator of various biological processes, including energy metabolism and cell differentiation. However, whether NADPH is involved in the dysregulation of ROS and further compromise of PDLSC osteogenic differentiation under high glucose conditions is still not known. In the present study, we found that PDLSCs incubated under high glucose conditions showed impaired osteogenic differentiation, excessive ROS accumulation and increased NADPH production. Furthermore, after inhibiting the synthesis of NADPH, the osteogenic differentiation of PDLSCs was significantly enhanced, accompanied by reduced cellular ROS accumulation. Our findings demonstrated the crucial role of NADPH in regulating cellular osteogenic differentiation under high glucose conditions and suggested a new target for rescuing high glucose-induced cell dysfunction and promoting tissue regeneration in the future.
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Affiliation(s)
| | | | | | | | | | | | | | - Fa-Ming Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi’an, China
| | - Bei-Min Tian
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi’an, China
| | - Yuan Yin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, Fourth Military Medical University, Xi’an, China
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12
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Gu C, Kong F, Zeng J, Geng X, Sun Y, Chen X. Remote ischemic preconditioning protects against spinal cord ischemia-reperfusion injury in mice by activating NMDAR/AMPK/PGC-1α/SIRT3 signaling. Cell Biosci 2023; 13:57. [PMID: 36927808 PMCID: PMC10018930 DOI: 10.1186/s13578-023-00999-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 02/27/2023] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND To study the protective effects of delayed remote ischemic preconditioning (RIPC) against spinal cord ischemia-reperfusion injury (SCIRI) in mice and determine whether SIRT3 is involved in this protection and portrayed its upstream regulatory mechanisms. METHODS In vivo, WT or SIRT3 global knockout (KO) mice were exposed to right upper and lower limbs RIPC or sham ischemia. After 24 h, the abdominal aorta was clamped for 20 min, then re-perfused for 3 days. The motor function of mice, number of Nissl bodies, apoptotic rate of neurons, and related indexes of oxidative stress in the spinal cord were measured to evaluate for neuroprotective effects. The expression and correlation of SIRT3 and NMDAR were detected by WB and immunofluorescence. In vitro, primary neurons were exacted and OGD/R was performed to simulate SCIRI in vivo. Neuronal damage was assessed by observing neuron morphology, detecting LDH release ratio, and flow cytometry to analyze the apoptosis. MnSOD and CAT enzyme activities, GSH and ROS level were also measured to assess neuronal antioxidant capacity. NMDAR-AMPK-PGC-1α signaling was detected by WB to portray upstream regulatory mechanisms of RIPC regulating SIRT3. RESULTS Compared to the SCIRI mice without RIPC, mice with RIPC displayed improved motor function recovery, a reduced neuronal loss, and enhanced antioxidant capacity. To the contrary, the KO mice did not exhibit any effect of RIPC-induced neuroprotection. Similar results were observed in vitro. Further analyses with spinal cord tissues or primary neurons detected enhanced MnSOD and CAT activities, as well as increased GSH level but decreased MDA or ROS production in the RIPC + I/R mice or NMDA + OGD/R neurons. However, these changes were completely inhibited by the absence of SIRT3. Additionally, NMDAR-AMPK-PGC-1α signaling was activated to upregulate SIRT3 levels, which is essential for RIPC-mediated neuroprotection. CONCLUSIONS RIPC enhances spinal cord ischemia tolerance in a SIRT3-dependent manner, and its induced elevated SIRT3 levels are mediated by the NMDAR-AMPK-PGC-1α signaling pathway. Combined therapy targeting SIRT3 is a promising direction for treating SCIRI.
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Affiliation(s)
- Changjiang Gu
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, People's Republic of China
| | - Fanqi Kong
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, People's Republic of China
| | - Junkai Zeng
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, People's Republic of China
| | - Xiangwu Geng
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, People's Republic of China
| | - Yanqing Sun
- Department of Orthopaedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 85 Wujin Road, 200080, Shanghai, PR China.
| | - Xiongsheng Chen
- Spine Center, Department of Orthopaedics, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, 200003, People's Republic of China. .,Department of Orthopaedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 85 Wujin Road, 200080, Shanghai, PR China.
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13
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STOML2 restricts mitophagy and increases chemosensitivity in pancreatic cancer through stabilizing PARL-induced PINK1 degradation. Cell Death Dis 2023; 14:191. [PMID: 36906621 PMCID: PMC10008575 DOI: 10.1038/s41419-023-05711-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 02/20/2023] [Accepted: 02/24/2023] [Indexed: 03/13/2023]
Abstract
Pancreatic cancer remains one of the most lethal diseases with a relatively low 5-year survival rate, and gemcitabine-based chemoresistance occurs constantly. Mitochondria, as the power factory in cancer cells, are involved in the process of chemoresistance. The dynamic balance of mitochondria is under the control of mitophagy. Stomatin-like protein 2 (STOML2) is located in the mitochondrial inner membrane and is highly expressed in cancer cells. In this study, using a tissue microarray (TMA), we found that high STOML2 expression was correlated with higher survival of patients with pancreatic cancer. Meanwhile, the proliferation and chemoresistance of pancreatic cancer cells could be retarded by STOML2. In addition, we found that STOML2 was positively related to mitochondrial mass and negatively related to mitophagy in pancreatic cancer cells. STOML2 stabilized PARL and further prevented gemcitabine-induced PINK1-dependent mitophagy. We also generated subcutaneous xenografts to verify the enhancement of gemcitabine therapy induced by STOML2. These findings suggested that STOML2 regulated the mitophagy process through the PARL/PINK1 pathway, thereby reducing the chemoresistance of pancreatic cancer. STOML2-overexpression targeted therapy might be helpful for gemcitabine sensitization in the future.
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14
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Tang B, Luo Z, Zhang R, Zhang D, Nie G, Li M, Dai Y. An update on the molecular mechanism and pharmacological interventions for Ischemia-reperfusion injury by regulating AMPK/mTOR signaling pathway in autophagy. Cell Signal 2023; 107:110665. [PMID: 37004834 DOI: 10.1016/j.cellsig.2023.110665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023]
Abstract
AMP-activated protein kinase (5'-adenosine monophosphate-activated protein kinase, AMPK)/mammalian target of rapamycin (mTOR) is an important signaling pathway maintaining normal cell function and homeostasis in vivo. The AMPK/mTOR pathway regulates cellular proliferation, autophagy, and apoptosis. Ischemia-reperfusion injury (IRI) is secondary damage that frequently occurs clinically in various disease processes and treatments, and the exacerbated injury during tissue reperfusion increases disease-associated morbidity and mortality. IRI arises from multiple complex pathological mechanisms, among which cell autophagy is a focus of recent research and a new therapeutic target. The activation of AMPK/mTOR signaling in IRI can modulate cellular metabolism and regulate cell proliferation and immune cell differentiation by adjusting gene transcription and protein synthesis. Thus, the AMPK/mTOR signaling pathway has been intensively investigated in studies focused on IRI prevention and treatment. In recent years, AMPK/mTOR pathway-mediated autophagy has been found to play a crucial role in IRI treatment. This article aims to elaborate the action mechanisms of AMPK/mTOR signaling pathway activation in IRI and summarize the progress of AMPK/mTOR-mediated autophagy research in the field of IRI therapy.
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Affiliation(s)
- Bin Tang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Zhijian Luo
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Rong Zhang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Dongmei Zhang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Guojun Nie
- The First Outpatient Department of People's Liberation Army Western Theater General Hospital, Cheng Du, Sichuan Province 61000, China
| | - Mingxing Li
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China.
| | - Yan Dai
- Department of pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China.
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15
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Zhou J, Liu H, Zhang T, Wang Z, Zhang J, Lu Y, Li Z, Kong W, Zhao J. MORN4 protects cardiomyocytes against ischemic injury via MFN2-mediated mitochondrial dynamics and mitophagy. Free Radic Biol Med 2023; 196:156-170. [PMID: 36682578 DOI: 10.1016/j.freeradbiomed.2023.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/21/2023]
Abstract
The imbalance of mitochondrial fission and fusion dynamics causes ischemic cardiomyocyte apoptosis and heart injury by affecting mitophagy. Regulation of mitochondrial dynamics is an important therapeutic strategy for ischemic heart diseases. Considering the important roles of MORN motifs in heart diseases and chloroplast fission, we aimed to investigate the possible role of MORN repeat-containing protein 4 (MORN4) in the progression of myocardial infarction (MI), ischemic cardiomyocyte apoptosis, mitochondrial dynamics, and mitophagy. We found that in the MI mouse, MORN4 knockdown remarkably accelerated cardiac injury and fibrosis with deteriorating cardiac dysfunction. Sphingosylphosphorylcholine (SPC) alleviated ischemic cardiomyocyte apoptosis and heart injury through increased level of MORN4, indicating a vital function of MORN4 in heart with SPC used to clarify the molecular mechanisms underlying the functions of MORN4. Mechanistically, we found that MORN4 directly binds to MFN2 and promotes the phosphorylation of MFN2 S442 through Rho-associated protein kinase 2 (ROCK2), which mediates beneficial mitophagy induced by mitochondrial dynamics, while SPC promoted the binding of MORN4 and MFN2 and the process. Taken together, our data reveal a new perspective role of MORN4 in ischemic heart injury, and report that SPC could regulate myocardial mitochondrial homeostasis by activating the MORN4-MFN2 axis during the ischemic situation, this finding provides novel targets for improving myocardial ischemia tolerance and rescue of acute myocardial infarction.
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Affiliation(s)
- Jinrun Zhou
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Honghong Liu
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Tianliang Zhang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, PR China; Experimental Center for Medical Research, Weifang Medical University, Weifang, 261000, PR China
| | - Zhaohui Wang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Jiaojiao Zhang
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Yao Lu
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Zhiliang Li
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Weihua Kong
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, PR China
| | - Jing Zhao
- Shandong Provincial Key Laboratory of Animal Cells and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, 266237, PR China.
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Liang Z, Yang Y, Wu X, Lu C, Zhao H, Chen K, Zhao A, Li X, Xu J. GAS6/Axl is associated with AMPK activation and attenuates H 2O 2-induced oxidative stress. Apoptosis 2022; 28:485-497. [PMID: 36580193 DOI: 10.1007/s10495-022-01801-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2022] [Indexed: 12/30/2022]
Abstract
Oxidative stress plays a key part in cardiovascular event. Growth arrest-specific gene 6 (GAS6) is a vitamin K-dependent ligand which has been shown to exert important effects in heart. The effects of GAS6 were evaluated against hydrogen peroxide (H2O2) ‑induced oxidative stress injury in HL-1 cardiomyocytes. A series of experimental methods were used to analyze the effects of GAS6 on cell viability, apoptosis, oxidative stress, mitochondrial function and AMPK/ACC signaling in H2O2‑injured HL-1 cells. In this study, we found that H2O2 reduced cell viability, increased apoptotic rate and intracellular reactive oxygen species (ROS). Meanwhile, H2O2 decreased the protein levels of GAS6, and increased the protein level of p-AMPK/AMPK, p-ACC/ACC. Then, we observed that overexpression of GAS6 significantly reduced cell death, manifested as increased cell viability, improved oxidative stress, apoptosis and upregulated the levels of GAS6, p-Axl/Axl, Nrf2, NQO1, HO-1, Bcl-2/Bax, PGC-1α, NRF1, TFAM, p-AMPK/AMPK, and p-ACC/ACC-related protein expression in HL-1 cells and H2O2‑injured cardiomyocytes. To further verify the results, we successfully constructed GAS6 lentiviral vectors, and found GAS6 shRNA partially reversed the above results. These data suggest that AMPK/ACC may be a downstream effector molecule in the antioxidant action of GAS6. In summary, our findings indicate that activation GAS6/Axl-AMPK signaling protects H2O2‑induced oxidative stress which is accompanied by the amelioration of oxidative stress, apoptosis, and mitochondrial function.
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Affiliation(s)
- Zhenxing Liang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe East, 450052, Zhengzhou, China
| | - Yang Yang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Faculty of Life Sciences, Ministry of Education, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Xue Wu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Faculty of Life Sciences, Ministry of Education, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Chenxi Lu
- Key Laboratory of Resource Biology and Biotechnology in Western China, Faculty of Life Sciences, Ministry of Education, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Huadong Zhao
- Department of General Surgery, Tangdu Hospital, The Airforce Medical University, 1 Xinsi Road, 710038, Xi'an, China
| | - Kehan Chen
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe East, 450052, Zhengzhou, China
| | - Aizhen Zhao
- Key Laboratory of Resource Biology and Biotechnology in Western China, Faculty of Life Sciences, Ministry of Education, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Xiyang Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Faculty of Life Sciences, Ministry of Education, Northwest University, 229 Taibai North Road, Xi'an, China
| | - Jing Xu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Zhengzhou University, 1 Jianshe East, 450052, Zhengzhou, China.
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17
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Role of AMPK in Myocardial Ischemia-Reperfusion Injury-Induced Cell Death in the Presence and Absence of Diabetes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:7346699. [PMID: 36267813 PMCID: PMC9578802 DOI: 10.1155/2022/7346699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 09/29/2022] [Indexed: 11/26/2022]
Abstract
Recent studies indicate cell death is the hallmark of cardiac pathology in myocardial infarction and diabetes. The AMP-activated protein kinase (AMPK) signalling pathway is considered a putative salvaging phenomenon, plays a decisive role in almost all cellular, metabolic, and survival functions, and therefore entails precise regulation of its activity. AMPK regulates various programmed cell death depending on the stimuli and context, including autophagy, apoptosis, necroptosis, and ferroptosis. There is substantial evidence suggesting that AMPK is down-regulated in cardiac tissues of animals and humans with type 2 diabetes or metabolic syndrome compared to non-diabetic control and that stimulation of AMPK (physiological or pharmacological) can ameliorate diabetes-associated cardiovascular complications, such as myocardial ischemia-reperfusion injury. Furthermore, AMPK is an exciting therapeutic target for developing novel drug candidates to treat cell death in diabetes-associated myocardial ischemia-reperfusion injury. Therefore, in this review, we summarized how AMPK regulates autophagic, apoptotic, necroptotic, and ferroptosis pathways in the context of myocardial ischemia-reperfusion injury in the presence and absence of diabetes.
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Cai J, Chen X, Liu X, Li Z, Shi A, Tang X, Xia P, Zhang J, Yu P. AMPK: The key to ischemia-reperfusion injury. J Cell Physiol 2022; 237:4079-4096. [PMID: 36134582 DOI: 10.1002/jcp.30875] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 08/08/2022] [Accepted: 08/23/2022] [Indexed: 11/09/2022]
Abstract
Ischemia-reperfusion injury (IRI) refers to a syndrome in which tissue damage is further aggravated and organ function further deteriorates when blood flow is restored after a period of tissue ischemia. Acute myocardial infarction, stress ulcer, pancreatitis, intestinal ischemia, intermittent claudication, acute tubular necrosis, postshock liver failure, and multisystem organ failure are all related to reperfusion injury. AMP-activated protein kinase (AMPK) has been identified in multiple catabolic and anabolic signaling pathways. The functions of AMPK during health and diseases are intriguing but still need further research. Except for its conventional roles as an intracellular energy switch, emerging evidence reveals the critical role of AMPK in IRI as an energy-sensing signal molecule by regulating metabolism, autophagy, oxidative stress, inflammation, and other progressions. At the same time, drugs based on AMPK for the treatment of IRI are constantly being researched and applied in clinics. In this review, we summarize the mechanisms underlying the effects of AMPK in IRI and describe the AMPK-targeting drugs in treatment, hoping to increase the understanding of AMPK in IRI and provide new insights into future clinical treatment.
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Affiliation(s)
- Jie Cai
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xinyue Chen
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xingyu Liu
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Zhangwang Li
- The Second Clinical Medical College of Nanchang University, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Ao Shi
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA.,Department of Biochemistry and Molecular Biology, Mayo Graduate School of Biomedical Science, Mayo Clinic, Rochester, Minnesota, USA
| | - Xiaoyi Tang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Panpan Xia
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang, China
| | - Jing Zhang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Peng Yu
- Department of Metabolism and Endocrinology, The Second Affiliated Hospital of Nanchang University, Jiangxi, Nanchang, China
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Koju N, Qin ZH, Sheng R. Reduced nicotinamide adenine dinucleotide phosphate in redox balance and diseases: a friend or foe? Acta Pharmacol Sin 2022; 43:1889-1904. [PMID: 35017669 PMCID: PMC9343382 DOI: 10.1038/s41401-021-00838-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 12/03/2021] [Accepted: 12/03/2021] [Indexed: 12/20/2022] Open
Abstract
The nicotinamide adenine dinucleotide (NAD+/NADH) and nicotinamide adenine dinucleotide phosphate (NADP+/NADPH) redox couples function as cofactors or/and substrates for numerous enzymes to retain cellular redox balance and energy metabolism. Thus, maintaining cellular NADH and NADPH balance is critical for sustaining cellular homeostasis. The sources of NADPH generation might determine its biological effects. Newly-recognized biosynthetic enzymes and genetically encoded biosensors help us better understand how cells maintain biosynthesis and distribution of compartmentalized NAD(H) and NADP(H) pools. It is essential but challenging to distinguish how cells sustain redox couple pools to perform their integral functions and escape redox stress. However, it is still obscure whether NADPH is detrimental or beneficial as either deficiency or excess in cellular NADPH levels disturbs cellular redox state and metabolic homeostasis leading to redox stress, energy stress, and eventually, to the disease state. Additional study of the pathways and regulatory mechanisms of NADPH generation in different compartments, and the means by which NADPH plays a role in various diseases, will provide innovative insights into its roles in human health and may find a value of NADPH for the treatment of certain diseases including aging, Alzheimer's disease, Parkinson's disease, cardiovascular diseases, ischemic stroke, diabetes, obesity, cancer, etc.
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Affiliation(s)
- Nirmala Koju
- grid.263761.70000 0001 0198 0694Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123 China
| | - Zheng-hong Qin
- grid.263761.70000 0001 0198 0694Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123 China
| | - Rui Sheng
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, 215123, China.
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Ge S, Zhang L, Cui X, Li Y. Protective effects of brain-targeted dexmedetomidine nanomicelles on mitochondrial dysfunction in astrocytes of cerebral ischemia/reperfusion injury rats. Neuroscience 2022; 498:203-213. [PMID: 35817219 DOI: 10.1016/j.neuroscience.2022.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 10/17/2022]
Abstract
Cerebral ischemia/reperfusion injury (CIRI) is closely related to mitochondrial dysfunction in astrocytes. Therefore, based on glucose transporter 1 (GLUT1), which is highly expressed in the brain tissue of rats with CIRI, we design a kind of brain-targeted dexmedetomidine (Man@Dex) nanomicelles. The results showed that Man@Dex not only had the advantages of small particle size, stability and non-toxicity, but also realized brain-targeted drug delivery. Primary astrocytes were cultured in vitro to construct CIRI cell model. It was found that Man@Dex could improve the activity of injured astrocytes. Man@Dex could exert antioxidant activity by inhibiting the reactive oxygen species (ROS) production of astrocytes, thus inhibiting the cytotoxicity induced by hypoxia and reoxygenation. Man@Dex could improve the ATP level and mitochondrial membrane potential (MMP) to protect mitochondrial function of damaged astrocytes. The CIRI rat model was constructed and confirmed by hematoxylin and eosin (HE), Triphenyl-2H-tetrazolium chloride (TTC) staining and nerve defect score. It indicated that Man@Dex could alleviate CIRI and improve MMP, which was beneficial to the recovery of brain injury in rats. This research provides a new theoretical basis and target for the development of brain-targeted nano-drugs of CIRI.
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Affiliation(s)
- Shusheng Ge
- Department of Anesthesoilogy, The First Affiliated Hospital of Hainan Medical University, No. 31 Longhua Road, Haikou, Hainan Province 570102, China
| | - Liwei Zhang
- Department of Neurology, Daqing Oilfield General Hospital, No. 9 Zhongkang Street, Sartu District, Daqing, Heilongjiang Province 163001, China
| | - Xiaoguang Cui
- Department of Anesthesoilogy, The First Affiliated Hospital of Hainan Medical University, No. 31 Longhua Road, Haikou, Hainan Province 570102, China
| | - Yuan Li
- Department of Anesthesoilogy, The First Affiliated Hospital of Hainan Medical University, No. 31 Longhua Road, Haikou, Hainan Province 570102, China.
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21
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Wu B, Li P, Hong X, Xu C, Wang R, Liang Y. The receptor-like cytosolic kinase RIPK activates NADP-malic enzyme 2 to generate NADPH for fueling ROS production. MOLECULAR PLANT 2022; 15:887-903. [PMID: 35276409 DOI: 10.1016/j.molp.2022.03.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 02/14/2022] [Accepted: 03/06/2022] [Indexed: 06/14/2023]
Abstract
Reactive oxygen species (ROS) production is a conserved immune response in Arabidopsis primarily mediated by respiratory burst oxidase homolog D (RBOHD), a nicotinamide adenine dinucleotide phosphate (NADPH) oxidase associated with the plasma membrane. A rapid increase in NADPH is necessary to fuel RBOHD proteins and thus maintain ROS production. However, the molecular mechanism by which NADPH is generated to fuel RBOHD remains unclear. In this study, we isolated a new mutant allele of FLAGELLIN-INSENSITIVE 4 (FIN4), which encodes the first enzyme in de novo NAD biosynthesis. fin4 mutants show reduced NADPH levels and impaired ROS production. However, FIN4 and other genes involved in NAD- and NADPH-generating pathways are not highly upregulated upon elicitor treatment, raising a possibility that a cytosolic NADP-linked dehydrogenase might be post-transcriptionally activated to maintain the NADPH supply close to RBOHD. To verify this possibility, we isolated the proteins associated with RPM1-INDUCED PROTEIN KINASE (RIPK), a receptor-like cytoplasmic kinase that regulates broad-spectrum ROS signaling in plant immunity, and identified NADP-malic enzyme 2 (NADP-ME2), an NADPH-generating enzyme. Compared with wild-type plants, nadp-me2 mutants display decreased NADP-ME activity, lower NADPH levels, and reduced ROS production in response to immune elicitors. Furthermore, we found that RIPK can directly phosphorylate NADP-ME2 and enhance its activity in vitro. The phosphorylation of the NADP-ME2 S371 residue contributes to ROS production upon immune elicitor treatment and susceptibility to the necrotrophic bacterium Pectobacterium carotovorum. Collectively, our study suggests that RIPK phosphorylates and activates NADP-ME2 to rapidly increase cytosolic NADPH, thus fueling RBOHD to sustain ROS production in plant immunity.
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Affiliation(s)
- Binyan Wu
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Ping Li
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Xiufang Hong
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Cuihong Xu
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Ran Wang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Yan Liang
- Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China.
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Hinokitiol Protects Cardiomyocyte from Oxidative Damage by Inhibiting GSK3β-Mediated Autophagy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2700000. [PMID: 35419165 PMCID: PMC9001072 DOI: 10.1155/2022/2700000] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/08/2022] [Indexed: 12/13/2022]
Abstract
More and more attention has been paid to the use of traditional phytochemicals. Here, we first verified the therapeutic potential of a natural bioactive compound called Hinokitiol in myocardial ischemia reperfusion injury. Hinokitiol exerts cardioprotective effect through inhibition of GSK-3β and subsequent elimination of excessive autophagy, tuning autophagic activity in moderate extent for remedial profit in acute myocardial infarction and myocardial ischemia reperfusion injury. Overall, our study establishes Hinokitiol as a novel available interventional treatment for myocardial ischemia reperfusion injury.
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Targeting AMPK signaling in ischemic/reperfusion injury: From molecular mechanism to pharmacological interventions. Cell Signal 2022; 94:110323. [DOI: 10.1016/j.cellsig.2022.110323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 12/16/2022]
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Yu Y, He C, Tan S, Huang M, Guo Y, Li M, Zhang Q. MicroRNA-137-3p Improves Nonalcoholic Fatty Liver Disease through Activating AMPK α. Anal Cell Pathol (Amst) 2021; 2021:4853355. [PMID: 35004133 PMCID: PMC8731301 DOI: 10.1155/2021/4853355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 12/02/2021] [Indexed: 12/13/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is one of the most common chronic liver diseases worldwide and can develop to nonalcoholic steatohepatitis and later hepatic cirrhosis with a high prevalence to hepatocellular carcinoma. Oxidative stress and chronic hepatic inflammation are implicated in the pathogenesis of NAFLD. MicroRNA-137-3p (miR-137-3p) are associated with oxidative stress and inflammation; however, its role and mechanism in NAFLD remain unclear. Mice were fed with a high-fat diet (HFD) for 24 weeks to establish the NAFLD model. To overexpress or suppress hepatic miR-137-3p expression, mice were intraperitoneally injected with the agomir, antagomir, or respective controls of miR-137-3p at a dose of 100 mg/kg weekly for 6 consecutive weeks before the mice were sacrificed. To validate the involvement of AMP-activated protein kinase alpha (AMPKα) or cAMP-specific phosphodiesterase 4D (PDE4D), HFD mice were intraperitoneally injected with 20 mg/kg compound C or 0.5 mg/kg rolipram every other day for 8 consecutive weeks before the mice were sacrificed. Hepatic miR-137-3p expression was significantly decreased in mice upon HFD stimulation. miR-137-3p agomir alleviated, while miR-137-3p antagomir facilitated HFD-induced oxidative stress, inflammation, and hepatic dysfunction in mice. Mechanistically, we revealed that miR-137-3p is directly bound to the 3'-untranslated region of PDE4D and subsequently increased hepatic cAMP level and protein kinase A activity, thereby activating the downstream AMPKα pathway. In summary, miR-137-3p improves NAFLD through activating AMPKα and it is a promising therapeutic candidate to treat NAFLD.
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Affiliation(s)
- Yuanjie Yu
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
- Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Chunping He
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
- Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Shiyun Tan
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
- Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Mengjun Huang
- Department of Nutrition, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, Hubei, China
| | - Yitian Guo
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
- Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Ming Li
- Department of Gastroenterology, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
- Hubei Key Laboratory of Digestive System Disease, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
| | - Qian Zhang
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Wuhan 430060, Hubei, China
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Ou D, Ni D, Li R, Jiang X, Chen X, Li H. Galectin‑1 alleviates myocardial ischemia‑reperfusion injury by reducing the inflammation and apoptosis of cardiomyocytes. Exp Ther Med 2021; 23:143. [PMID: 35069824 PMCID: PMC8756402 DOI: 10.3892/etm.2021.11066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 09/16/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Dengke Ou
- Department of Cardiovascular Medicine, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, P.R. China
| | - Dan Ni
- Department of Nuclear Medicine, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, P.R. China
| | - Rong Li
- Department of Interventional Therapy, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, P.R. China
| | - Xiaobo Jiang
- Department of Cardiovascular Medicine, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, P.R. China
| | - Xiaoxiao Chen
- Department of Cardiovascular Medicine, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, P.R. China
| | - Hongfei Li
- Department of Cardiovascular Medicine, Chengdu Fifth People's Hospital, Chengdu, Sichuan 611130, P.R. China
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Wang Y, Jin H, Wang Y, Yao Y, Yang C, Meng J, Tan X, Nie Y, Xue L, Xu B, Zhao H, Wang F. Sult2b1 deficiency exacerbates ischemic stroke by promoting pro-inflammatory macrophage polarization in mice. Am J Cancer Res 2021; 11:10074-10090. [PMID: 34815805 PMCID: PMC8581421 DOI: 10.7150/thno.61646] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 10/18/2021] [Indexed: 02/06/2023] Open
Abstract
Rationale: Stroke is a leading causes of human death worldwide. Ischemic damage induces the sterile neuroinflammation, which directly determines the recovery of patients. Lipids, a major component of the brain, significantly altered after stroke. Cholesterol sulfate, a naturally occurring analog of cholesterol, can directly regulate immune cell activation, indicating the possible involvement of cholesterol metabolites in neuroinflammation. Sulfotransferase family 2b member 1 (Sult2b1) is the key enzyme that catalyzes the synthesis of cholesterol sulfate. This study aimed to investigate the function of Sult2b1 and cholesterol sulfate in the neuroinflammation after ischemic stroke. Methods and Results: Sult2b1-/- and wild-type mice were subjected to transient middle cerebral artery occlusion. Our data showed that Sult2b1-/- mice had larger infarction and worse neurological scores. To determine whether immune cells were involved in the worsening stroke outcome in Sult2b1-/- mice, bone marrow transplantation, immune cell depletion, and adoptive monocyte transfer were performed. Combined with CyTOF and immunofluorescence techniques, we demonstrated that after stroke, the peripheral monocyte-derived macrophages were the dominant cell type promoting the pro-inflammatory status in Sult2b1-/-mice. Using primary bone marrow-derived macrophages, we showed that cholesterol sulfate could attenuate the pro-inflammatory polarization of macrophages under both normal and oxygen-glucose deprivation conditions by regulating the levels of nicotinamide adenine dinucleotide phosphate (NADPH), reactive oxygen species (ROS), and activating the AMP-activated protein kinase (AMPK) - cAMP responsive element-binding protein (CREB) signaling pathway. Conclusions:Sult2b1-/- promoted the polarization of macrophages into pro-inflammatory status. This trend could be attenuated by adding cholesterol sulfate, which promotes the polarization of macrophages into anti-inflammatory status by metabolic regulation. In this study, we established an inflammation-metabolism axis during the macrophage polarization after ischemic stroke.
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Fang J, Sheng R, Qin ZH. NADPH Oxidases in the Central Nervous System: Regional and Cellular Localization and the Possible Link to Brain Diseases. Antioxid Redox Signal 2021; 35:951-973. [PMID: 34293949 DOI: 10.1089/ars.2021.0040] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Significance: The significant role of reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (Nox) in signal transduction is mediated by the production of reactive oxygen species (ROS), especially in the central nervous system (CNS). The pathogenesis of some neurologic and psychiatric diseases is regulated by ROS, acting as a second messenger or pathogen. Recent Advances: In the CNS, the involvement of Nox-derived ROS has been implicated in the regulation of multiple signals, including cell survival/apoptosis, neuroinflammation, migration, differentiation, proliferation, and synaptic plasticity, as well as the integrity of the blood/brain barrier. In these processes, the intracellular signals mediated by the members of the Nox family vary among different tissues. The present review illuminates the regions and cellular, subcellular localization of Nox isoforms in the brain, the signal transduction, and the role of NOX enzymes in pathophysiology, respectively. Critical Issues: Different signal transduction cascades are coupled to ROS derived from various Nox homologues with varying degrees. Therefore, a critical issue worth noting is the varied role of the homologues of NOX enzymes in different signaling pathways and also they mediate different phenotypes in the diverse pathophysiological condition. This substantiates the effectiveness of selective Nox inhibitors in the CNS. Future Directions: Further investigation to elucidate the role of various homologues of NOX enzymes in acute and chronic brain diseases and signaling mechanisms, and the development of more specific NOX inhibitors for the treatment of CNS disease are urgently needed. Antioxid. Redox Signal. 35, 951-973.
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Affiliation(s)
- Jie Fang
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, College of Pharmaceutical Science, Soochow University, Suzhou, China
| | - Rui Sheng
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, College of Pharmaceutical Science, Soochow University, Suzhou, China
| | - Zheng-Hong Qin
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, College of Pharmaceutical Science, Soochow University, Suzhou, China
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He Z, Zeng X, Zhou D, Liu P, Han D, Xu L, Bu T, Wang J, Ke M, Pan X, Du Y, Xue H, Lu D, Luo B. LncRNA Chaer Prevents Cardiomyocyte Apoptosis From Acute Myocardial Infarction Through AMPK Activation. Front Pharmacol 2021; 12:649398. [PMID: 34335241 PMCID: PMC8322763 DOI: 10.3389/fphar.2021.649398] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/04/2021] [Indexed: 11/30/2022] Open
Abstract
Long non-coding RNA (lncRNA) is widely reported to be involved in cardiac (patho)physiology. Acute myocardial infarction, in which cardiomyocyte apoptosis plays an important role, is a life-threatening disease. Here, we report the lncRNA Chaer that is anti-apoptotic in cardiomyocytes during Acute myocardial infarction. Importantly, lncRNA Chaer is significantly downregulated in both oxygen-glucose deprivation (oxygen-glucose deprivation)-treated cardiomyocytes in vitro and AMI heart. In vitro, overexpression of lncRNA Chaer with adeno virus reduces cardiomyocyte apoptosis induced by OGD-treated while silencing of lncRNA Chaer increases cardiomyocyte apoptosis instead. In vivo, forced expression of lncRNA Chaer with AAV9 attenuates cardiac apoptosis, reduces infarction area and improves mice heart function in AMI. Interestingly, overexpression of lncRNA Chaer promotes the phosphorylation of AMPK, and AMPK inhibitor Compound C reverses the overexpression of lncRNA Chaer effect of reducing cardiomyocyte apoptosis under OGD-treatment. In summary, we identify the novel ability of lncRNA Chaer in regulating cardiomyocyte apoptosis by promoting phosphorylation of AMPK in AMI.
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Affiliation(s)
- Zhiyu He
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaojun Zeng
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Deke Zhou
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Traditional Chinese Medicine Hospital of Gaozhou, Department of Cardiology, Gaozhou, China
| | - Peiying Liu
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Dunzheng Han
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Lingling Xu
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Tong Bu
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jinping Wang
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Mengmeng Ke
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiudi Pan
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yipeng Du
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Hao Xue
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Dongfeng Lu
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Bihui Luo
- Department of Cardiology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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29
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高 俊, 刘 曼, 郭 召, 胡 春, 冯 珍, 严 军. [Puerarin alleviates insulin resistance in type 2 diabetic mice by modulating fetuin B-AMPK/ACC signaling pathway in the liver]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:839-846. [PMID: 34238735 PMCID: PMC8267996 DOI: 10.12122/j.issn.1673-4254.2021.06.05] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the role of fetuin B-AMPK/ACC signaling pathway in mediating the effect of puerarin on hepatic insulin resistance in mice with type 2 diabetes mellitus (T2DM). OBJECTIVE Forty C57BL/6J mouse models of T2DM induced by high-fat diet and intraperitoneal injection of streptozotocin were randomized into diabetic model (HFD) group and 3 puerarin groups for treatment with low-, moderate- and high- dose puerarin (50, 100 and 200 mg/kg, respectively), with another 10 mice fed a normal diet as the control group. After treatment for 8 weeks, the mice were examined for fasting blood glucose (FBG), fasting insulin (FINS), liver triglycerides (TG), cholesterol (TC) and free fatty acids (FFA) levels. The expression of fetuin B in the liver was detected by immunohistochemistry. RT-qPCR was used to detect the expressions of fetuin B, AMPK, and ACC mRNA in the liver, and the protein expressions of fetuin B, AMPKα1, ACC, P-AMPKαT183/T172, and P-ACC S79 were determined with Western blotting. OBJECTIVE Treatment with moderate- and high-dose puerarin significantly lowered TG, TC, FFA and FBG levels in diabetic mice (P < 0.01). Puerarin at all the 3 doses significantly lowered FINS and HOMA-IR of the mice (P < 0.01). In diabetic mice, hepatic expressions of fetuin B and ACC mRNA increased and AMPK mRNA decreased significantly (P < 0.01); the protein expressions of fetuin B and ACC increased while those of AMPKα1, P-AMPKαT183/T172 and P-ACC S79 decreased significantly (P < 0.01). Puerarin dose-dependently inhibited the mRNA and protein expressions of fetuin B and ACC, increased AMPK mRNA and protein expressions of AMPKα1, P-AMPKαT183/ T172, and P-ACC S79, and lowered fetuin B content in the liver of diabetic mice (P < 0.01). OBJECTIVE Puerarin alleviates insulin resistance and improves glucolipid metabolism in T2DM mice by modulating hepatic fetuin B-AMPK/ACC signaling pathway.
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Affiliation(s)
- 俊凤 高
- 上海中医药大学研究生院,上海 201203Graduate School, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- 上海中医药大学联合培养单位//上海市嘉定区中医医院内分泌科,上海 201899Cooperation Research Center of Shanghai University of Traditional Chinese Medicine//Department of Endocrinology, Traditional Chinese Medicine Hospital of Jiading District, Shanghai 201899, China
| | - 曼曼 刘
- 上海中医药大学联合培养单位//上海市嘉定区中医医院内分泌科,上海 201899Cooperation Research Center of Shanghai University of Traditional Chinese Medicine//Department of Endocrinology, Traditional Chinese Medicine Hospital of Jiading District, Shanghai 201899, China
| | - 召平 郭
- 上海中医药大学联合培养单位//上海市嘉定区中医医院内分泌科,上海 201899Cooperation Research Center of Shanghai University of Traditional Chinese Medicine//Department of Endocrinology, Traditional Chinese Medicine Hospital of Jiading District, Shanghai 201899, China
| | - 春平 胡
- 上海中医药大学联合培养单位//上海市嘉定区中医医院内分泌科,上海 201899Cooperation Research Center of Shanghai University of Traditional Chinese Medicine//Department of Endocrinology, Traditional Chinese Medicine Hospital of Jiading District, Shanghai 201899, China
| | - 珍凤 冯
- 上海中医药大学联合培养单位//上海市嘉定区中医医院内分泌科,上海 201899Cooperation Research Center of Shanghai University of Traditional Chinese Medicine//Department of Endocrinology, Traditional Chinese Medicine Hospital of Jiading District, Shanghai 201899, China
| | - 军 严
- 上海中医药大学联合培养单位//上海市嘉定区中医医院内分泌科,上海 201899Cooperation Research Center of Shanghai University of Traditional Chinese Medicine//Department of Endocrinology, Traditional Chinese Medicine Hospital of Jiading District, Shanghai 201899, China
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Wang D, Li T, Xu Y, Yang X, He M, Zhang Z, Wu W, Yan Y. [Platelet-rich plasma alleviates myocardial ischemia-reperfusion injury in rats]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2021; 41:775-782. [PMID: 34134967 DOI: 10.12122/j.issn.1673-4254.2021.05.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the protective effect of platelet-rich plasma (PRP) against acute myocardial ischemiareperfusion (IR) injury and the possible mechanism. OBJECTIVE Aortic blood samples were collected from 10 SD rats to prepare PRP, in which the concentrations of platelet-derived growth factor-BB (PDGF-BB) and transforming growth factor-β1 (TGF-β1) were measured. Cell models of IR injury were established in primary cultures of neonatal SD rat cardiomyocytes by exposing the cells to 3 h of hypoxia. The cells were then reoxygenated and co-cultured with 1%, 5%, 10%, and 20% volume of PRP for 12 h, and the changes in cell viability was assessed. Immunofluorescence staining of the cardiomyocytes was performed, and the cellular expression of AMPK and its phosphorylation level were detected. The effects of PRP on the proliferation and migration of rat aortic endothelial cells (RAOECs) were examined. In a SD rat model of myocardial IR injury, 100 μL of PRP (n= 20) or normal saline (n=20) was injected at 4 sites around the ligation site immediately after cardiac reperfusion. One day after the injection, 6 rats were selected from each group for TTC staining of the myocardial tissues and measurement of troponin Ⅰ content. One week later, the cardiac function of the remaining rats was assessed by echocardiography, and HE staining of the myocardial tissues was performed. The effect of PRP treatment for 24 h on polarization of M1 and M2 macrophages was also examined by flow cytometry in RAW264.7 cells after hypoxic exposure for 3 h. OBJECTIVE The concentrations of PDGF-BB and TGF-β1 were significantly higher in PRP than in whole blood. Addition of 1% volume of PRP significantly reduced death of the cardiomyocytes following reoxygenation, and this effect was closely related with the activation of AMPK. Treatment with PRP obviously promoted the proliferation and migration of RAOECs. In rat models of acute myocardial IR injury, injections of PRP significantly reduced the infarct size and troponin Ⅰ concentration as compared with saline injection (P < 0.001). One week after PRP injection, the rats showed significantly improved cardiac function with a lowered level of inflammatory response in comparison with the rats with saline injection. In RAW264.7 cells with hypoxic exposure, treatment with PRP obviously decreased the number of M1 macrophages and increase the number of M2 macrophages. OBJECTIVE PRP can improve acute myocardial IR injury in rats by phosphorylating AMPK and regulating macrophage polarization, which produces a protective immunomodulatory effect on the ischemic myocardial tissues.
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Affiliation(s)
- D Wang
- Department of Cardiology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China.,Translational Research Centre of Regenerative Medicine and 3D Printing, Guangzhou Medical University, Guangzhou 510150, China.,State Key Laboratory of Organ Failure Research, Department of Pathophysiology, Guangzhou 510515, China
| | - T Li
- Department of Cardiology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China.,State Key Laboratory of Organ Failure Research, Department of Pathophysiology, Guangzhou 510515, China.,Guangdong Provincial Key Laboratory for Shock and Microcirculation Research, Southern Medical University, Guangzhou 510515, China
| | - Y Xu
- Department of Cardiology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China.,Guangdong Provincial Key Laboratory for Shock and Microcirculation Research, Southern Medical University, Guangzhou 510515, China
| | - X Yang
- Department of Cardiology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China.,Guangdong Provincial Key Laboratory for Shock and Microcirculation Research, Southern Medical University, Guangzhou 510515, China
| | - M He
- State Key Laboratory of Organ Failure Research, Department of Pathophysiology, Guangzhou 510515, China
| | - Z Zhang
- Translational Research Centre of Regenerative Medicine and 3D Printing, Guangzhou Medical University, Guangzhou 510150, China
| | - W Wu
- Guangdong Provincial Key Laboratory for Shock and Microcirculation Research, Southern Medical University, Guangzhou 510515, China
| | - Y Yan
- Department of Cardiology, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, China.,Translational Research Centre of Regenerative Medicine and 3D Printing, Guangzhou Medical University, Guangzhou 510150, China.,State Key Laboratory of Organ Failure Research, Department of Pathophysiology, Guangzhou 510515, China
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Li W, Zhu Q, Xu X, Hu X. MiR-27a-3p suppresses cerebral ischemia-reperfusion injury by targeting FOXO1. Aging (Albany NY) 2021; 13:11727-11737. [PMID: 33875617 PMCID: PMC8109123 DOI: 10.18632/aging.202866] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 03/05/2021] [Indexed: 12/12/2022]
Abstract
Cerebral ischemia-reperfusion (CI/R) injury is a serious complication when treating patients experiencing ischemic stroke. Although the microRNA miR-27a-3p reportedly participates in ischemia/reperfusion (I/R) injury, its actions in CI/R remain unclear. To mimic CI/R in vitro, HT22 cells were subjected to oxygen glucose deprivation/reoxygenation (OGD/R). The results indicate that OGD inhibited growth and induced apoptosis among HT22 cells. The apoptosis was accompanied by increases in activated caspases 3 and 9 and decreases in Bcl-2. Oxidative stress was also increased, as indicated by increases in ROS and malondialdehyde and decreases in glutathione and superoxide dismutase. In addition, OGD induced G1 arrest in HT22 cells with corresponding upregulation of FOXO1 and p27 Kip1, suggesting the cell cycle arrest was mediated by FOXO1/p27 Kip1 signaling. Notably, FOXO1 was found to be the direct target of miR-27a-3p in HT22 cells. MiR-27a-3p was downregulated in OGD/R-treated HT22 cells, and miR-27a-3p mimics partially or entirely reversed all of the in vitro effects of OGD. Moreover, miR-27a-3p agomir significantly alleviated the symptoms of CI/R in vivo in a rat model of CI/R. Thus, MiR-27a-3p appears to suppress CI/R injury by targeting FOXO1.
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Affiliation(s)
- Wenyu Li
- Department of Neurology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 133000, Zhejiang, China
| | - Qiongbin Zhu
- Department of Neurology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 133000, Zhejiang, China
| | - Xiaoyan Xu
- Department of Neurology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 133000, Zhejiang, China
| | - Xingyue Hu
- Department of Neurology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 133000, Zhejiang, China
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High Throughput Proteomic Exploration of Hypothermic Preservation Reveals Active Processes within the Cell Associated with Cold Ischemia Kinetic. Int J Mol Sci 2021; 22:ijms22052384. [PMID: 33673561 PMCID: PMC7956856 DOI: 10.3390/ijms22052384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/19/2021] [Accepted: 02/23/2021] [Indexed: 12/28/2022] Open
Abstract
The demand for organs to be transplanted increases pressure on procurement centers, to the detriment of organ quality, increasing complications. New preservation protocols are urgently needed, requiring an in-depth understanding of ischemia-reperfusion mechanisms. We performed a proteomic analysis using LC-MS/MS-TOF data analyzed through R software and Cytoscape's ClueGO application, comparing the proteome of kidney endothelial cells, key cell type, subjected to 3, 6, 12, 19, and 24 h of cold ischemia and 6 h reperfusion. Critical pathways such as energy metabolism, cytoskeleton structure/transport system, and gene transcription/translation were modulated. Important time windows were revealed: a-during the first 3 h, central proteins were upregulated within these pathways; b-the majority of these upregulations were maintained until 12 h cold ischemia time (CIT); c-after that time, the overall decrease in protein expression was observed; d-at reperfusion, proteins expressed in response to cold ischemia were all downregulated. This shows that cold ischemia is not a simple slowing down of metabolism, as deep changes take place within the proteome on major pathways. Time-sensitive expression of key protein reveals possible quality biomarkers as well as potential targets for new strategies to maintain or optimize organ quality.
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Huang Q, Su H, Qi B, Wang Y, Yan K, Wang X, Li X, Zhao D. A SIRT1 Activator, Ginsenoside Rc, Promotes Energy Metabolism in Cardiomyocytes and Neurons. J Am Chem Soc 2021; 143:1416-1427. [PMID: 33439015 DOI: 10.1021/jacs.0c10836] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Targeting SIRT1 signaling pathway could improve glucose aerobic metabolism and mitochondrial biosynthesis to resist cardiac and neurological injuries. Ginsenoside Rc has been identified for targeting mitochondrial function, but how ginsenoside Rc interacts with SIRT1 to regulate energy metabolism in cardiomyocytes and neurons under physiological or ischemia/reperfusion (I/R)-injured conditions has not been clearly investigated. Here, we confirm the interaction of Rc on the residue sites of SIRT1 in promoting its activity. Ginsenoside Rc significantly promotes mitochondrial biogenesis and increases the levels of electron-transport chain complex II-IV in cardiomyocytes and neurons. Meanwhile, ginsenoside Rc pretreatment increases ATP production, glucose uptake, and the levels of hexokinase I/II and mitochondrial pyruvate carrier I/II in both cell models. In addition, ginsenoside Rc activates the PGC1α pathway to induce mitochondrial biosynthesis. More importantly, ginsenoside Rc reduces mitochondrial damage and apoptosis through SIRT1 restoration-mediated reduction of PGC1α acetylation in the I/R-induced cardiac and neuronal models. Collectively, the in vitro and in vivo data indicate that ginsenoside Rc as a SIRT1 activator promotes energy metabolism to improve cardio- and neuroprotective functions under normal and I/R injury conditions, which provides new insights into the molecular mechanism of ginsenoside Rc as a protective agent.
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Affiliation(s)
| | | | | | | | | | - Xinglin Wang
- Guangdong Hanfang Health Research Institute, Guangzhou 510550, P. R. China
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Xin T, Lu C. SirT3 activates AMPK-related mitochondrial biogenesis and ameliorates sepsis-induced myocardial injury. Aging (Albany NY) 2020; 12:16224-16237. [PMID: 32721927 PMCID: PMC7485737 DOI: 10.18632/aging.103644] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/22/2020] [Indexed: 12/15/2022]
Abstract
Sirtuin-3 (SirT3) and AMPK stimulate mitochondrial biogenesis, which increases mitochondrial turnover and cardiomyocyte regeneration. We studied the effects of SirT3, AMPK, and mitochondrial biogenesis on sepsis-induced myocardial injury. Our data showed that after treating cardiomyocytes with lipopolysaccharide, SirT3 and AMPK levels decreased, and this was followed by mitochondrial dysfunction and cardiomyocyte death. Overexpression of SirT3 activated the AMPK pathway and improved mitochondrial biogenesis, which is required to sustain mitochondrial redox balance, maintain mitochondrial respiration, and suppress mitochondrial apoptosis. Inhibition of mitochondrial biogenesis abolished SirT3/AMPK-induced cardioprotection by causing mitochondrial damage. These findings indicate that SirT3 reduces sepsis-induced myocardial injury by activating AMPK-related mitochondrial biogenesis.
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Affiliation(s)
- Ting Xin
- Department of Cardiology, Tianjin First Central Hospital, Tianjing 300192, P.R. China
| | - Chengzhi Lu
- Department of Cardiology, Tianjin First Central Hospital, Tianjing 300192, P.R. China
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