期刊
TRENDS IN CELL BIOLOGY
卷 31, 期 12, 页码 994-1006出版社
CELL PRESS
DOI: 10.1016/j.tcb.2021.06.009
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资金
- US National Institutes of Health
SIRT6 plays a crucial role in maintaining genome and epigenome stability and is linked to longevity. SIRT6, together with lamins, control aging and rejuvenation by maintaining epigenetic silencing of repetitive elements.
Sirtuin 6 (SIRT6) has been in the spotlight of aging research because progeroid phenotypes are associated with SIRT6 deficiency. SIRT6 has multiple molecular functions, including DNA repair and heterochromatin regulation, which position SIRT6 as a hub that regulates genome and epigenome stability. Genomic instability caused by persistent DNA damage and accumulating mutations, together with alterations in the epigenetic landscape and derepression of repetitive genetic elements, have emerged as mechanisms driving organismal aging. Enhanced levels of SIRT6 expression or activity provide avenues for rejuvenation strategies. This review focuses on the role of SIRT6 in the maintenance of genome and epigenome stability and its link to longevity. We propose a model where SIRT6 together with lamins control aging and rejuvenation by maintaining epigenetic silencing of repetitive elements.
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