Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA.
Trends Mol Med. 2016 Aug;22(8):725-738. doi: 10.1016/j.molmed.2016.06.005. Epub 2016 Jul 14.
Aging can be defined as the progressive decline in the ability of a cell or organism to resist stress and disease. Recent advances in cellular reprogramming technologies have enabled detailed analyses of the aging process, often involving cell types derived from aged individuals, or patients with premature aging syndromes. In this review we discuss how cellular reprogramming allows the recapitulation of aging in a dish, describing novel experimental approaches to investigate the aging process. Finally, we explore the role of epigenetic dysregulation as a driver of aging, discussing how epigenetic reprogramming may be harnessed to ameliorate aging hallmarks, both in vitro and in vivo. A better understanding of the reprogramming process may indeed assist the development of novel therapeutic strategies to extend a healthy lifespan.
衰老是指细胞或生物体抵抗压力和疾病的能力逐渐下降。最近细胞重编程技术的进步使得对衰老过程的详细分析成为可能,这些分析通常涉及来自老年个体或早老综合征患者的细胞类型。在这篇综述中,我们讨论了细胞重编程如何允许在培养皿中重现衰老,描述了用于研究衰老过程的新实验方法。最后,我们探讨了表观遗传失调作为衰老驱动因素的作用,讨论了如何利用表观遗传重编程来改善体外和体内的衰老特征。对重编程过程的更好理解确实可能有助于开发新的治疗策略来延长健康寿命。