CDK4/6-inhibiting drug substitutes for p21 and p16 in senescence: duration of cell cycle arrest and MTOR activity determine geroconversion.
CDK4/6-inhibiting drug substitutes for p21 and p16 in senescence: duration of cell cycle arrest and MTOR activity determine geroconversion.
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DOI:
10.4161/cc.26130
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发表时间:
2013-09-15
期刊:
影响因子:
--
通讯作者:
Blagosklonny MV
中科院分区:
文献类型:
--
作者:
Leontieva OV;Blagosklonny MV
CDKN1A (p21) and CDKN2A (p16) inhibit CDK4/6, initiating senescence. According to our view on senescence, the role of p21 and p16 is to cause cell cycle arrest, whereas MTOR (mechanistic target of rapamycin) drives geroconversion to senescence. Recently we demonstrated that one of the markers of p21- and p16-initiated senescence is MEK-dependent hyper-elevation of cyclin D1. We noticed that a synthetic inhibitor of CDK 4/6 (PD0332991) also induced cyclin D1-positive senescence. We demonstrated that PD0332991 and p21 caused almost identical senescence phenotypes. p21, p16, and PD0332991 do not inhibit MTOR, and rapamycin decelerates geroconversion caused by all 3 molecules. Like p21, PD0332991 initiated senescence at any concentration that inhibited cell proliferation. This confirms the notion that a mere arrest in the presence of active MTOR may lead to senescence.
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影响因子:
64.5
作者:
Burd CE;Sorrentino JA;Clark KS;Darr DB;Krishnamurthy J;Deal AM;Bardeesy N;Castrillon DH;Beach DH;Sharpless NE
通讯作者:
Sharpless NE
DOI:
10.18632/aging.100443
发表时间:
2012-03
期刊:
Aging
影响因子:
--
作者:
Blagosklonny MV
通讯作者:
Blagosklonny MV
DOI:
10.18632/aging.100521
发表时间:
2012-12
期刊:
Aging
影响因子:
--
作者:
Halicka HD;Zhao H;Li J;Lee YS;Hsieh TC;Wu JM;Darzynkiewicz Z
通讯作者:
Darzynkiewicz Z
DOI:
10.18632/aging.100422
发表时间:
2011-12
期刊:
Aging
影响因子:
--
作者:
Blagosklonny MV
通讯作者:
Blagosklonny MV
影响因子:
17.1
作者:
Cao, Kan;Graziotto, John J.;Collins, Francis S.
通讯作者:
Collins, Francis S.