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Zheng K, Hao Y, Xia C, Cheng S, Yu J, Chen Z, Li Y, Niu Y, Ran S, Wang S, Ye W, Luo Z, Li X, Zhao J, Li R, Zong J, Zhang H, Lai L, Huang P, Zhou C, Xia J, Zhang X, Wu J. Effects and mechanisms of the myocardial microenvironment on cardiomyocyte proliferation and regeneration. Front Cell Dev Biol 2024; 12:1429020. [PMID: 39050889 PMCID: PMC11266095 DOI: 10.3389/fcell.2024.1429020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 06/20/2024] [Indexed: 07/27/2024] Open
Abstract
The adult mammalian cardiomyocyte has a limited capacity for self-renewal, which leads to the irreversible heart dysfunction and poses a significant threat to myocardial infarction patients. In the past decades, research efforts have been predominantly concentrated on the cardiomyocyte proliferation and heart regeneration. However, the heart is a complex organ that comprises not only cardiomyocytes but also numerous noncardiomyocyte cells, all playing integral roles in maintaining cardiac function. In addition, cardiomyocytes are exposed to a dynamically changing physical environment that includes oxygen saturation and mechanical forces. Recently, a growing number of studies on myocardial microenvironment in cardiomyocyte proliferation and heart regeneration is ongoing. In this review, we provide an overview of recent advances in myocardial microenvironment, which plays an important role in cardiomyocyte proliferation and heart regeneration.
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Affiliation(s)
- Kexiao Zheng
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanglin Hao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chenkun Xia
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shaoxian Cheng
- Jingshan Union Hospital, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jizhang Yu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhang Chen
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Li
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuqing Niu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuan Ran
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Song Wang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weicong Ye
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zilong Luo
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohan Li
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiulu Zhao
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ran Li
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Junjie Zong
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Zhang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Longyong Lai
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pinyan Huang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cheng Zhou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiahong Xia
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xi Zhang
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Wu
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Zhang C, Wang F, Hao C, Liang W, Hou T, Xin J, Su B, Ning M, Liu Y. Prognostic Impact of Early Administration of β-Blockers in Critically Ill Patients with Acute Myocardial Infarction. J Clin Pharmacol 2024; 64:410-417. [PMID: 37830391 DOI: 10.1002/jcph.2370] [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: 07/17/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
In critically ill patients with acute myocardial infarction (AMI), the relationship between the early administration of β-blockers and the risks of in-hospital and long-term mortality remains controversial. Furthermore, there are conflicting evidences for the efficacy of the early administration of intravenous followed by oral β-blockers in AMI. We conducted a retrospective analysis of critically ill patients with AMI who received the early administration of β-blockers within 24 hours of admission. The data were extracted from the Medical Information Mart for Intensive Care IV database. We enrolled 2467 critically ill patients with AMI in the study, with 1355 patients who received the early administration of β-blockers and 1112 patients who were non-users. Kaplan-Meier survival analysis and Cox proportional hazards models showed that the early administration of β-blockers was associated with a lower risk of in-hospital mortality (adjusted hazard ratio [aHR] 0.52; 95% confidence interval [95%CI] 0.42-0.64), 1-year mortality (aHR 0.54, 95%CI 0.47-0.63), and 5-year mortality (aHR 0.60, 95%CI 0.52-0.69). Furthermore, the early administration of both oral β-blockers and intravenous β-blockers followed by oral β-blockers may reduce the mortality risk, compared with non-users. The risks of in-hospital and long-term mortality were significantly decreased in patients who underwent revascularization with the early administration of β-blockers. We found that the early administration of β-blockers could lower the risks of in-hospital and long-term mortality. Furthermore, the early administration of both oral β-blockers and intravenous β-blockers followed by oral β-blockers may reduce the mortality risk, compared with non-users. Notably, patients who underwent revascularization with the early administration of β-blockers showed the lowest risks of in-hospital and long-term mortality.
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Affiliation(s)
- Chong Zhang
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, The Third Central Hospital of Tianjin, Tianjin, China
- Artificial Cell Engineering Technology Research Center, The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
| | - Fei Wang
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, The Third Central Hospital of Tianjin, Tianjin, China
- Artificial Cell Engineering Technology Research Center, The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
| | - Cuijun Hao
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, The Third Central Hospital of Tianjin, Tianjin, China
- Artificial Cell Engineering Technology Research Center, The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
| | - Weiru Liang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Tianhua Hou
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, The Third Central Hospital of Tianjin, Tianjin, China
- Artificial Cell Engineering Technology Research Center, The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
| | - Jiayan Xin
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, The Third Central Hospital of Tianjin, Tianjin, China
- Artificial Cell Engineering Technology Research Center, The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
| | - Bin Su
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, The Third Central Hospital of Tianjin, Tianjin, China
- Artificial Cell Engineering Technology Research Center, The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
| | - Meng Ning
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, The Third Central Hospital of Tianjin, Tianjin, China
- Artificial Cell Engineering Technology Research Center, The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
| | - Yingwu Liu
- The Third Central Clinical College of Tianjin Medical University, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, The Third Central Hospital of Tianjin, Tianjin, China
- Artificial Cell Engineering Technology Research Center, The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Institute of Hepatobiliary Disease, The Third Central Hospital of Tianjin, Tianjin, China
- Department of Heart Center, The Third Central Hospital of Tianjin, Tianjin, China
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Beisaw A, Wu CC. Cardiomyocyte maturation and its reversal during cardiac regeneration. Dev Dyn 2024; 253:8-27. [PMID: 36502296 DOI: 10.1002/dvdy.557] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 12/03/2022] [Accepted: 12/03/2022] [Indexed: 12/14/2022] Open
Abstract
Cardiovascular disease is a leading cause of death worldwide. Due to the limited proliferative and regenerative capacity of adult cardiomyocytes, the lost myocardium is not replenished efficiently and is replaced by a fibrotic scar, which eventually leads to heart failure. Current therapies to cure or delay the progression of heart failure are limited; hence, there is a pressing need for regenerative approaches to support the failing heart. Cardiomyocytes undergo a series of transcriptional, structural, and metabolic changes after birth (collectively termed maturation), which is critical for their contractile function but limits the regenerative capacity of the heart. In regenerative organisms, cardiomyocytes revert from their terminally differentiated state into a less mature state (ie, dedifferentiation) to allow for proliferation and regeneration to occur. Importantly, stimulating adult cardiomyocyte dedifferentiation has been shown to promote morphological and functional improvement after myocardial infarction, further highlighting the importance of cardiomyocyte dedifferentiation in heart regeneration. Here, we review several hallmarks of cardiomyocyte maturation, and summarize how their reversal facilitates cardiomyocyte proliferation and heart regeneration. A detailed understanding of how cardiomyocyte dedifferentiation is regulated will provide insights into therapeutic options to promote cardiomyocyte de-maturation and proliferation, and ultimately heart regeneration in mammals.
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Affiliation(s)
- Arica Beisaw
- Institute of Experimental Cardiology, Heidelberg University, Heidelberg, Germany
| | - Chi-Chung Wu
- European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
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Li H, Wang T, Feng Y, Sun K, Huang G, Cao Y, Xu A. Optimal transplantation strategy using human induced pluripotent stem cell-derived cardiomyocytes for acute myocardial infarction in nonhuman primates. MedComm (Beijing) 2023; 4:e289. [PMID: 37303812 PMCID: PMC10248032 DOI: 10.1002/mco2.289] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 04/27/2023] [Accepted: 05/08/2023] [Indexed: 06/13/2023] Open
Abstract
Cardiomyocytes derived from human induced pluripotent stem cells (hiPSC-CMs) have the potential to be a therapeutic option for myocardium restoration. However, hiPSC-CMs of varying maturation and transplantation routes exhibit different reactivity and therapeutic effects. We previously demonstrated that the saponin+ compound induces more mature hiPSC-CMs. The safety and efficacy of multi-route transplantation of saponin+ compound-induced hiPSC-CMs in a nonhuman primate with myocardial infarction will be investigated for the first time in this study. Our findings indicate that optimized hiPSC-CMs transplanted via intramyocardial and intravenous routes may affect myocardial functions by homing or mitochondrial transfer to the damaged myocardium to play a direct therapeutic role as well as indirect beneficial roles via anti-apoptotic and pro-angiogenesis mechanisms mediated by different paracrine growth factors. Due to significant mural thrombosis, higher mortality, and unilateral renal shrinkage, intracoronary transplantation of hiPSC-CMs requires closer attention to anticoagulation and caution in clinical use. Collectively, our data strongly indicated that intramyocardial transplantation of hiPSC-CMs is the ideal technique for clinical application; multiple cell transfers are recommended to achieve steady and protracted efficacy because intravenous transplantation's potency fluctuates. Thus, our study offers a rationale for choosing a therapeutic cell therapy and the best transplantation strategy for optimally induced hiPSC-CMs.
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Affiliation(s)
- Hong‐mei Li
- School of Life ScienceBeijing University of Chinese MedicineBeijingP. R. China
- Beizhong Jingyuan Biotechnology (Beijing) LimitedBeijingP. R. China
| | - Ting Wang
- School of Life ScienceBeijing University of Chinese MedicineBeijingP. R. China
| | - Yu‐yin Feng
- School of Life ScienceBeijing University of Chinese MedicineBeijingP. R. China
| | - Ke Sun
- School of Life ScienceBeijing University of Chinese MedicineBeijingP. R. China
| | - Guang‐rui Huang
- School of Life ScienceBeijing University of Chinese MedicineBeijingP. R. China
- Beizhong Jingyuan Biotechnology (Beijing) LimitedBeijingP. R. China
| | - Yu‐lin Cao
- Beizhong Jingyuan Biotechnology (Beijing) LimitedBeijingP. R. China
- Tangyi Holdings (Shenzhen) LimitedShenzhenP. R. China
| | - An‐long Xu
- School of Life ScienceBeijing University of Chinese MedicineBeijingP. R. China
- State Key Laboratory of BiocontrolGuangdong Province Key Laboratory for Pharmaceutical Functional GenesCollege of Life SciencesSun Yat‐Sen UniversityGuangdongP. R. China
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Xia ZM, Song MY, Chen YL, Cui G, Fan D. TIMP3 induces gene expression partly through PI3K and their association with vascularization and heart rate. Front Cardiovasc Med 2023; 10:1130388. [PMID: 37057103 PMCID: PMC10086129 DOI: 10.3389/fcvm.2023.1130388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 03/13/2023] [Indexed: 03/30/2023] Open
Abstract
BackgroundTissue inhibitor of metalloproteinase 3 (TIMP3) was recently demonstrated capable to regulate some gene expression in a myocardial infarction model. Here we aim to explore the gene expression profile in TIMP3-treated cardiomyocytes and related potential cardiovascular functions.MethodsTotal RNA extracted from cultured neonatal rat ventricular myocytes (NRVMs) were used for RNA sequencing analysis and real-time PCR. KEGG pathway enrichment assay and Ingenuity Pathway Analysis (IPA) were performed to study the signaling pathways and downstream effects. Western blot was used to detect phosphorylation of protein kinase B (Akt). A Cell Counting Kit-8 assay was employed to evaluate the proliferation of human umbilical vein endothelial cells (HUVECs). Contraction rate of NRVMs was measured with microscopy.ResultsRNA sequencing data showed that expression of 2,526 genes were significantly modulated by recombinant TIMP3 (rTIMP3, 100 ng/ml) in NRVMs. Some differentially expressed genes (DEGs) were validated with real-time PCR. Several KEGG pathways including the phosphoinositide-3-kinase (PI3K)-Akt pathway were significantly regulated by rTIMP3. Phosphorylation of Akt was increased by rTIMP3 and a PI3K inhibitor LY294002 suppressed rTIMP3-induced up-regulation of some genes. Some DEGs were predicted by IPA to increase vascularization, and some to decrease heart rate. RTIMP3 could reduce the contraction rate of NRVMs and its conditioned media increased the proliferation of HUVECs.ConclusionTIMP3 can regulate expression of multiple genes partly through PI3K. Some DEGs were associated with activation of vascularization and some with heart rate reduction. This study suggests that TIMP3 can potentially modulate cardiovascular functions via DEGs.
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Affiliation(s)
- Zi-Meng Xia
- Department of Pathology, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Meng-Yu Song
- Department of Pathology, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Yan-Ling Chen
- Department of Pathophysiology, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Guozhen Cui
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Dong Fan
- Department of Pathology, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
- Correspondence: Dong Fan
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Bai Y, Ren C, Hou C, Chen L, Wang Z, Li X, Zhang D. Phosphorylation and acetylation responses of glycolytic enzymes in meat to different chilling rates. Food Chem 2023; 421:135896. [PMID: 37098310 DOI: 10.1016/j.foodchem.2023.135896] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/03/2023] [Accepted: 03/05/2023] [Indexed: 03/11/2023]
Abstract
The aim of this study was to investigate the effects of chilling rate on phosphorylation and acetylation levels of the glycolytic enzymes in meat, including glycogen phosphorylase, phosphofructokinase, aldolase (ALDOA), triose-phosphate isomerase (TPI1), phosphoglycerate kinase, lactate dehydrogenase (LDH). The samples were assigned into three groups: Control, Chilling 1 and Chilling 2, corresponding to the chilling rates of 4.8 °C/h, 23.0 °C/h and 25.1 °C/h respectively. The contents of glycogen and ATP were significantly higher in samples from the chilling groups. The activity and phosphorylation level of the six enzymes were higher in samples at the chilling rate of 25.1 °C/h, while the acetylation level of ALDOA, TPI1 and LDH were inhibited. In brief, glycolysis was delayed and the activity of glycolytic enzymes were maintained at higher level by the changes of phosphorylation and acetylation levels at the chilling rates of 23.0 °C/h and 25.1 °C/h, which may partly explain why very fast chilling improves meat quality.
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Sorbini M, Arab S, Soni T, Frisiras A, Mehta S. How can the adult zebrafish and neonatal mice teach us about stimulating cardiac regeneration in the human heart? Regen Med 2023; 18:85-99. [PMID: 36416596 DOI: 10.2217/rme-2022-0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The proliferative capacity of mammalian cardiomyocytes diminishes shortly after birth. In contrast, adult zebrafish and neonatal mice can regenerate cardiac tissues, highlighting new potential therapeutic avenues. Different factors have been found to promote cardiomyocyte proliferation in zebrafish and neonatal mice; these include maintenance of mononuclear and diploid cardiomyocytes and upregulation of the proto-oncogene c-Myc. The growth factor NRG-1 controls cell proliferation and interacts with the Hippo-Yap pathway to modulate regeneration. Key components of the extracellular matrix such as Agrin are also crucial for cardiac regeneration. Novel therapies explored in this review, include intramyocardial injection of Agrin or zebrafish-ECM and NRG-1 administration. These therapies may induce regeneration in patients and should be further explored.
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Affiliation(s)
- Michela Sorbini
- Barts and the London School of Medicien and Dentistry, Queen Mary University of London, E1 2AD, London, UK.,Imperial College School of Medicine, SW7 2AZ, London, UK
| | - Sammy Arab
- Imperial College School of Medicine, SW7 2AZ, London, UK
| | - Tara Soni
- Imperial College School of Medicine, SW7 2AZ, London, UK
| | | | - Samay Mehta
- Imperial College School of Medicine, SW7 2AZ, London, UK
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Molecular mechanisms of exercise contributing to tissue regeneration. Signal Transduct Target Ther 2022; 7:383. [PMID: 36446784 PMCID: PMC9709153 DOI: 10.1038/s41392-022-01233-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 10/03/2022] [Accepted: 10/17/2022] [Indexed: 12/03/2022] Open
Abstract
Physical activity has been known as an essential element to promote human health for centuries. Thus, exercise intervention is encouraged to battle against sedentary lifestyle. Recent rapid advances in molecular biotechnology have demonstrated that both endurance and resistance exercise training, two traditional types of exercise, trigger a series of physiological responses, unraveling the mechanisms of exercise regulating on the human body. Therefore, exercise has been expected as a candidate approach of alleviating a wide range of diseases, such as metabolic diseases, neurodegenerative disorders, tumors, and cardiovascular diseases. In particular, the capacity of exercise to promote tissue regeneration has attracted the attention of many researchers in recent decades. Since most adult human organs have a weak regenerative capacity, it is currently a key challenge in regenerative medicine to improve the efficiency of tissue regeneration. As research progresses, exercise-induced tissue regeneration seems to provide a novel approach for fighting against injury or senescence, establishing strong theoretical basis for more and more "exercise mimetics." These drugs are acting as the pharmaceutical alternatives of those individuals who cannot experience the benefits of exercise. Here, we comprehensively provide a description of the benefits of exercise on tissue regeneration in diverse organs, mainly focusing on musculoskeletal system, cardiovascular system, and nervous system. We also discuss the underlying molecular mechanisms associated with the regenerative effects of exercise and emerging therapeutic exercise mimetics for regeneration, as well as the associated opportunities and challenges. We aim to describe an integrated perspective on the current advances of distinct physiological mechanisms associated with exercise-induced tissue regeneration on various organs and facilitate the development of drugs that mimics the benefits of exercise.
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Duan X, Liu X, Zhan Z. Metabolic Regulation of Cardiac Regeneration. Front Cardiovasc Med 2022; 9:933060. [PMID: 35872916 PMCID: PMC9304552 DOI: 10.3389/fcvm.2022.933060] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 06/13/2022] [Indexed: 12/16/2022] Open
Abstract
The mortality due to heart diseases remains highest in the world every year, with ischemic cardiomyopathy being the prime cause. The irreversible loss of cardiomyocytes following myocardial injury leads to compromised contractility of the remaining myocardium, adverse cardiac remodeling, and ultimately heart failure. The hearts of adult mammals can hardly regenerate after cardiac injury since adult cardiomyocytes exit the cell cycle. Nonetheless, the hearts of early neonatal mammals possess a stronger capacity for regeneration. To improve the prognosis of patients with heart failure and to find the effective therapeutic strategies for it, it is essential to promote endogenous regeneration of adult mammalian cardiomyocytes. Mitochondrial metabolism maintains normal physiological functions of the heart and compensates for heart failure. In recent decades, the focus is on the changes in myocardial energy metabolism, including glucose, fatty acid, and amino acid metabolism, in cardiac physiological and pathological states. In addition to being a source of energy, metabolites are becoming key regulators of gene expression and epigenetic patterns, which may affect heart regeneration. However, the myocardial energy metabolism during heart regeneration is majorly unknown. This review focuses on the role of energy metabolism in cardiac regeneration, intending to shed light on the strategies for manipulating heart regeneration and promoting heart repair after cardiac injury.
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Affiliation(s)
- Xuewen Duan
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Institute of Heart Failure, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xingguang Liu
- Department of Pathogen Biology, Naval Medical University, Shanghai, China
- Xingguang Liu,
| | - Zhenzhen Zhan
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Institute of Heart Failure, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Zhenzhen Zhan,
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Xia A. Potential benefits of Qi Gong meditation in quantifiable physiology: A five-year longitudinal observation. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2022. [DOI: 10.1016/j.jtcms.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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