p21 induces a senescence program and skeletal muscle dysfunction.
p21 induces a senescence program and skeletal muscle dysfunction.
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DOI:
10.1016/j.molmet.2022.101652
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发表时间:
2023-01
影响因子:
8.1
通讯作者:
LeBrasseur, Nathan K.
中科院分区:
文献类型:
--
作者:
Englund, Davis A.;Jolliffe, Alyssa;Aversa, Zaira;Zhang, Xu;Sturmlechner, Ines;Sakamoto, Ayumi E.;Zeidler, Julianna D.;Warner, Gina M.;McNinch, Colton;White, Thomas A.;Chini, Eduardo N.;Baker, Darren J.;van Deursen, Jan M.;LeBrasseur, Nathan K.
关键词:
Recent work has established associations between elevated p21, the accumulation of senescent cells, and skeletal muscle dysfunction in mice and humans. Using a mouse model of p21 overexpression (p21OE), we examined if p21 mechanistically contributes to cellular senescence and pathological features in skeletal muscle. We show that p21 induces several core properties of cellular senescence in skeletal muscle, including an altered transcriptome, DNA damage, mitochondrial dysfunction, and the senescence-associated secretory phenotype (SASP). Furthermore, p21OE mice exhibit manifestations of skeletal muscle pathology, such as atrophy, fibrosis, and impaired physical function when compared to age-matched controls. These findings suggest p21 alone is sufficient to drive a cellular senescence program and reveal a novel source of skeletal muscle loss and dysfunction. p21 induces a transcriptional program in skeletal muscle consistent with a senescence program. p21 induces core properties of senescence in skeletal muscle, including DNA damage, mitochondrial dysfunction, and the SASP. Mice that overexpress p21 exhibit signs of muscle pathology, such as atrophy, fibrosis, and impaired physical function.
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影响因子:
7.7
作者:
Schafer MJ;White TA;Evans G;Tonne JM;Verzosa GC;Stout MB;Mazula DL;Palmer AK;Baker DJ;Jensen MD;Torbenson MS;Miller JD;Ikeda Y;Tchkonia T;van Deursen JM;Kirkland JL;LeBrasseur NK
通讯作者:
LeBrasseur NK
影响因子:
4
作者:
Bass JJ;Hardy EJO;Inns TB;Wilkinson DJ;Piasecki M;Morris RH;Spicer A;Sale C;Smith K;Atherton PJ;Phillips BE
通讯作者:
Phillips BE
DOI:
10.1093/function/zqaa033
发表时间:
2021
期刊:
Function (Oxford, England)
影响因子:
--
作者:
Englund DA;Figueiredo VC;Dungan CM;Murach KA;Peck BD;Petrosino JM;Brightwell CR;Dupont AM;Neal AC;Fry CS;Accornero F;McCarthy JJ;Peterson CA
通讯作者:
Peterson CA
影响因子:
64.8
作者:
Baker DJ;Childs BG;Durik M;Wijers ME;Sieben CJ;Zhong J;Saltness RA;Jeganathan KB;Verzosa GC;Pezeshki A;Khazaie K;Miller JD;van Deursen JM
通讯作者:
van Deursen JM
影响因子:
64.8
作者:
Sousa-Victor, Pedro;Gutarra, Susana;Munoz-Canoves, Pura
通讯作者:
Munoz-Canoves, Pura