Department of Cell and Molecular Biology, Karolinska Institute, Berzelius väg 35, Stockholm SE 171 65, Sweden.
Department of Internal Medicine, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA.
Eur Heart J. 2017 Aug 7;38(30):2333-2342. doi: 10.1093/eurheartj/ehx343.
The capacity of the mammalian heart to regenerate cardiomyocytes has been debated over the last decades. However, limitations in existing techniques to track and identify nascent cardiomyocytes have often led to inconsistent results. Radiocarbon (14C) birth dating, in combination with other quantitative strategies, allows to establish the number and age of human cardiomyocytes, making it possible to describe their age distribution and turnover dynamics. Accurate estimates of cardiomyocyte generation in the adult heart can provide the foundation for novel regenerative strategies that aim to stimulate cardiomyocyte renewal in various cardiac pathologies.
几十年来,关于哺乳动物心脏的再生能力一直存在争议。然而,现有的追踪和识别新生心肌细胞的技术存在局限性,这往往导致结果不一致。放射性碳(14C)出生标记与其他定量策略相结合,可确定人类心肌细胞的数量和年龄,从而有可能描述其年龄分布和更替动态。准确估计成年心脏中的心肌细胞生成可以为旨在刺激各种心脏病变中心肌细胞更新的新型再生策略提供基础。