let-7-repressesed Shc translation delays replicative senescence.
let-7-repressesed Shc translation delays replicative senescence.
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let-7-抑制的Shc翻译延迟复制衰老
DOI:
10.1111/acel.12176
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发表时间:
2014-02
期刊:
影响因子:
7.8
通讯作者:
Wang W
中科院分区:
文献类型:
--
作者:
Xu F;Pang L;Cai X;Liu X;Yuan S;Fan X;Jiang B;Zhang X;Dou Y;Gorospe M;Wang W
The p66Shc adaptor protein is an important regulator of lifespan in mammals, but the mechanisms responsible are still unclear. Here, we show that expression of p66Shc, p52Shc, and p46Shc is regulated at the post-transcriptional level by the microRNA let-7a. The levels of let-7a correlated inversely with the levels of Shc proteins without affecting Shc mRNA levels. We identified ‘seedless’ let-7a interaction elements in the coding region of Shc mRNA; mutation of the ‘seedless’ interaction sites abolished the regulation of Shc by let-7a. Our results further revealed that repression of Shc expression by let-7a delays senescence of human diploid fibroblasts (HDFs). In sum, our findings link let-7a abundance to the expression of p66Shc, which in turn controls the replicative lifespan of HDFs.
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影响因子:
4
作者:
Luzi, L;Confalonieri, S;Pelicci, PG
通讯作者:
Pelicci, PG
影响因子:
11.2
作者:
Sampson, Valerie B.;Rong, Nancy H.;Krueger, Leslie J.
通讯作者:
Krueger, Leslie J.
影响因子:
8
作者:
Trinei, M;Giorgio, M;Pelicci, PG
通讯作者:
Pelicci, PG
DOI:
10.1083/jcb.201009094
发表时间:
2011-02-21
期刊:
The Journal of cell biology
影响因子:
--
作者:
Rodier F;Campisi J
通讯作者:
Campisi J
影响因子:
64.5
作者:
Yu, Fengyan;Yao, Herui;Song, Erwei
通讯作者:
Song, Erwei