摘要
注入自体干细胞最近被提出作为替代策略用于心肌梗塞再生和恢复病变心脏的收缩功能。在一些动物模型中,越来越多的细胞类型被发现诱导心脏缺血性心肌的修复,包括人类心脏祖细胞(hCPCs)、人类胚胎干细胞(为)、人类间充质干细胞(hMSCs)和内皮祖细胞(hEPCs)。临床前研究的热情却被临床实践中所质疑,因为基于细胞治疗对动物模型心脏修复的程度是不够的。毫无疑问,需要对信号转导途径进行深入研究,才能大大促进急性心肌梗塞(AMI)的再生医学,并指导干细胞向损伤部位转移及其后续治疗的有效性。本文将重点阐述在细胞内钙离子浓度的幅度变化可能使干细胞促进缺血性心肌的再生。我们将描述如何操纵细胞内钙离子峰值重新定向干细胞的分化方向,从而恢复心脏和血管的收缩性。
关键词: 急性心肌梗死,祖细胞,心脏重构,内皮祖细胞,细胞内Ca2+离子幅度,间质干细胞
Current Drug Targets
Title:Intracellular Ca2+ Signals to Reconstruct A Broken Heart: Still A Theoretical Approach?
Volume: 16 Issue: 8
Author(s): Francesco Moccia, Federico Alessandro Ruffinatti and Estella Zuccolo
Affiliation:
关键词: 急性心肌梗死,祖细胞,心脏重构,内皮祖细胞,细胞内Ca2+离子幅度,间质干细胞
摘要: The infusion of autologous stem cells has recently been put forward as an alternative strategy to regenerate infarcted myocardium and restore the contractile functions of diseased hearts. A growing number of cell types have been probed to induce cardiac repair in several animal models of ischemic myocardium, including human cardiac progenitor cells (hCPCs), human embryonic stem cells (hESCs), human mesenchymal stem cells (hMSCs) and human endothelial progenitor cells (hEPCs). The enthusiasm raised by pre-clinical studies has been dampened by clinical practice, according to which the extent of cardiac repair by cell based therapy is inadequate with respect to animal models. There is no doubt that regenerative medicine of acute myocardial infarction (AMI) will greatly benefit from the full comprehension of the signal transduction pathways which guide stem cell towards the injury site and their subsequent acquisition of a therapeutically relevant phenotype. The present review will focus on the role that oscillations in intracellular Ca2+ concentration might play to promote the stem cells-dependent regrowth of ischemic myocardium. We will describe how intracellular Ca2+ spikes may be manipulated to redirect stem cell fate to the most suitable lineage to restore cardiac vascularisation and contractility.
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Cite this article as:
Francesco Moccia, Federico Alessandro Ruffinatti and Estella Zuccolo , Intracellular Ca2+ Signals to Reconstruct A Broken Heart: Still A Theoretical Approach?, Current Drug Targets 2015; 16 (8) . https://dx.doi.org/10.2174/1389450116666141219121723
DOI https://dx.doi.org/10.2174/1389450116666141219121723 |
Print ISSN 1389-4501 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5592 |
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