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Neonatal injury models: integral tools to decipher the molecular basis of cardiac regeneration
Basic Research in Cardiology ( IF 9.5 ) Pub Date : 2022-05-03 , DOI: 10.1007/s00395-022-00931-w
Alessia Costa 1, 2 , Sarah Cushman 1 , Bernhard J Haubner 3, 4 , Anselm A Derda 1, 5 , Thomas Thum 1, 2, 6 , Christian Bär 1, 2, 6
Affiliation  

Myocardial injury often leads to heart failure due to the loss and insufficient regeneration of resident cardiomyocytes. The low regenerative potential of the mammalian heart is one of the main drivers of heart failure progression, especially after myocardial infarction accompanied by large contractile muscle loss. Preclinical therapies for cardiac regeneration are promising, but clinically still missing. Mammalian models represent an excellent translational in vivo platform to test drugs and treatments for the promotion of cardiac regeneration. Particularly, short-lived mice offer the possibility to monitor the outcome of such treatments throughout the life span. Importantly, there is a short period of time in newborn mice in which the heart retains full regenerative capacity after cardiac injury, which potentially also holds true for the neonatal human heart. Thus, in vivo neonatal mouse models of cardiac injury are crucial to gain insights into the molecular mechanisms underlying the cardiac regenerative processes and to devise novel therapeutic strategies for the treatment of diseased adult hearts. Here, we provide an overview of the established injury models to study cardiac regeneration. We summarize pioneering studies that demonstrate the potential of using neonatal cardiac injury models to identify factors that may stimulate heart regeneration by inducing endogenous cardiomyocyte proliferation in the adult heart. To conclude, we briefly summarize studies in large animal models and the insights gained in humans, which may pave the way toward the development of novel approaches in regenerative medicine.



中文翻译:

新生儿损伤模型:破译心脏再生分子基础的完整工具

心肌损伤常因驻留心肌细胞的丢失和再生不足而导致心力衰竭。哺乳动物心脏的低再生潜能是心力衰竭进展的主要驱动因素之一,尤其是在伴有大量收缩性肌肉丧失的心肌梗塞之后。心脏再生的临床前治疗很有希望,但临床上仍然缺乏。哺乳动物模型代表了一个优秀的转化体内平台,用于测试促进心脏再生的药物和治疗。特别是,短命小鼠提供了在整个生命周期内监测此类治疗结果的可能性。重要的是,新生小鼠的心脏在心脏损伤后会在短时间内保持完全的再生能力,这可能也适用于新生儿心脏。因此,心脏损伤的体内新生小鼠模型对于深入了解心脏再生过程的分子机制和设计治疗患病成人心脏的新治疗策略至关重要。在这里,我们概述了用于研究心脏再生的已建立损伤模型。我们总结了先驱性研究,这些研究证明了使用新生儿心脏损伤模型来识别可能通过在成人心脏中诱导内源性心肌细胞增殖来刺激心脏再生的因素的潜力。最后,我们简要总结了大型动物模型的研究和在人类身上获得的见解,这可能为再生医学新方法的发展铺平道路。心脏损伤的新生小鼠体内模型对于深入了解心脏再生过程的分子机制和设计治疗患病成人心脏的新治疗策略至关重要。在这里,我们概述了用于研究心脏再生的已建立损伤模型。我们总结了先驱性研究,这些研究证明了使用新生儿心脏损伤模型来识别可能通过在成人心脏中诱导内源性心肌细胞增殖来刺激心脏再生的因素的潜力。最后,我们简要总结了大型动物模型的研究和在人类身上获得的见解,这可能为再生医学新方法的发展铺平道路。心脏损伤的新生小鼠体内模型对于深入了解心脏再生过程的分子机制和设计治疗患病成人心脏的新治疗策略至关重要。在这里,我们概述了用于研究心脏再生的已建立损伤模型。我们总结了先驱性研究,这些研究证明了使用新生儿心脏损伤模型来识别可能通过在成人心脏中诱导内源性心肌细胞增殖来刺激心脏再生的因素的潜力。最后,我们简要总结了大型动物模型的研究和在人类身上获得的见解,这可能为再生医学新方法的发展铺平道路。

更新日期:2022-05-05
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