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首页> 外文期刊>Current Molecular Biology Reports >Harnessing Epicardial Progenitor Cells and Their Derivatives for Rescue and Repair of Cardiac Tissue After Myocardial Infarction
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Harnessing Epicardial Progenitor Cells and Their Derivatives for Rescue and Repair of Cardiac Tissue After Myocardial Infarction

机译:利用心外膜祖细胞及其衍生物挽救和修复心肌梗死后的心组织

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Purpose of Review Ischemic heart disease and stroke lead to the greatest number of deaths worldwide. Despite decreased time to intervention and improvements in the standard of care, one out of five patients who survive a myocardial infarction (MI) still face long-term chronic heart failure and a 5-year mortality rate of about 50. Based on their multi-potency for differentiation and paracrine activity, epicardial cells and their derivatives have potential to rescue jeopardized tissue and/or promote cardiac regeneration. Here, we review the diagnosis and treatment of MI, basic epicardial cell biology, and potential treatment strategies designed to harness the repara-tive properties of epicardial cells.Recent Findings During cardiac development, epicardial cells covering the surface of the heart generate migratory progenitor cells that contribute to the coronary vasculature and the interstitial fibroblasts. Epicardial cells also produce paracrine signals required for myocardial expansion and cardiac growth. In adults with myocardial infarction, epicardial cells and their derivatives provide paracrine factors that affect myocardialremodeling and repair. At present, the intrinsic mechanisms and extrinsic signals that regulate epicardial cell fate and para-crine activity in adults remain poorly understood. Summary Human diseases that result in heart failure due to negative remodeling or extensive loss of viable cardiac tissue require new, effective treatments. Improved understanding of epicardial cell function(s) and epicardial-mediated secretion of growth factors, cytokines, and hormones during cardiac growth, homeostasis, and injury may lead to new ways to treat patients with myocardial infarction.
机译:综述目的 缺血性心脏病和中风导致全世界死亡人数最多。尽管干预时间缩短,护理标准有所提高,但五分之一的心肌梗死 (MI) 幸存者仍面临长期慢性心力衰竭,5 年死亡率约为 50%。基于其分化和旁分泌活性的多效性,心外膜细胞及其衍生物有可能挽救受损组织和/或促进心脏再生。在这里,我们回顾了心肌梗死的诊断和治疗、基本的心外膜细胞生物学以及旨在利用心外膜细胞的修复特性的潜在治疗策略。最新发现 在心脏发育过程中,覆盖心脏表面的心外膜细胞产生迁移性祖细胞,这些细胞有助于冠状动脉血管系统和间质成纤维细胞。心外膜细胞还产生心肌扩张和心脏生长所需的旁分泌信号。在患有心肌梗死的成人中,心外膜细胞及其衍生物提供影响心肌重塑和修复的旁分泌因子。目前,调节成人心外膜细胞命运和旁分泌活性的内在机制和外在信号仍然知之甚少。摘要 由于阴性重塑或活心脏组织的广泛丧失而导致心力衰竭的人类疾病需要新的有效治疗方法。提高对心外膜细胞功能的理解以及心外膜介导的生长因子、细胞因子和激素在心脏生长、稳态和损伤期间的分泌,可能会为治疗心肌梗死患者带来新的方法。

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