A PGC-1α isoform induced by resistance training regulates skeletal muscle hypertrophy.
A PGC-1α isoform induced by resistance training regulates skeletal muscle hypertrophy.
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DOI:
10.1016/j.cell.2012.10.050
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发表时间:
2012-12-07
期刊:
影响因子:
64.5
通讯作者:
Spiegelman BM
中科院分区:
文献类型:
--
作者:
Ruas JL;White JP;Rao RR;Kleiner S;Brannan KT;Harrison BC;Greene NP;Wu J;Estall JL;Irving BA;Lanza IR;Rasbach KA;Okutsu M;Nair KS;Yan Z;Leinwand LA;Spiegelman BM
PGC-1α is a transcriptional coactivator induced by exercise that gives muscle many of the best known adaptations to endurance-type exercise, but has no effects on muscle strength or hypertrophy. We have identified a novel form of PGC-1α (PGC-1α4) that results from alternative promoter usage and splicing of the primary transcript. PGC-1α4 is highly expressed in exercised muscle but does not regulate most known PGC-1α targets such as the mitochondrial OXPHOS genes. Rather, it specifically induces IGF1 and represses myostatin, and expression of PGC-1α4 in vitro and in vivo induces robust skeletal muscle hypertrophy. Importantly, mice with skeletal muscle-specific transgenic expression of PGC-1α4 show increased muscle mass and strength, and dramatic resistance to the muscle wasting of cancer cachexia. Expression of PGC-1α4 is preferentially induced in mouse and human muscle during resistance exercise. These studies identify a novel PGC-1α protein that regulates and coordinates factors involved in skeletal muscle hypertrophy.
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影响因子:
4.8
作者:
Dinchuk, Joseph E.;Cao, Carolyn;Carboni, Joan M.
通讯作者:
Carboni, Joan M.
影响因子:
3.3
作者:
MCMILLAN, DN;NOBLE, BS;MALTIN, CA
通讯作者:
MALTIN, CA
影响因子:
56.9
作者:
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通讯作者:
Hoefler, Gerald
DOI:
10.1073/pnas.0409103102
发表时间:
2005-01-25
影响因子:
11.1
作者:
Li, SJ;Czubryt, MP;Olson, EN
通讯作者:
Olson, EN
影响因子:
15.9
作者:
Handschin, Christoph;Choi, Cheol Soo;Spiegelman, Bruce M.
通讯作者:
Spiegelman, Bruce M.