Circadian control of the NAD+ salvage pathway by CLOCK-SIRT1.
Circadian control of the NAD+ salvage pathway by CLOCK-SIRT1.
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Clock-sirt1对NAD+打捞途径的昼夜节律控制。
DOI:
10.1126/science.1170803
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发表时间:
2009-05-01
期刊:
影响因子:
--
通讯作者:
Sassone-Corsi P
中科院分区:
文献类型:
--
作者:
Nakahata Y;Sahar S;Astarita G;Kaluzova M;Sassone-Corsi P
Many metabolic and physiological processes display circadian oscillations. We have shown that the core circadian regulator, CLOCK, is a histone acetyltransferase whose activity is counterbalanced by the NAD+-dependent histone deacetylase SIRT1. Here we show that intracellular NAD+ levels cycle with a 24 h rhythm, an oscillation driven by the circadian clock. CLOCK:BMAL1 regulate the circadian expression of NAMPT (nicotinamide phosphoribosyltransferase), a rate limiting step enzyme in the NAD+ salvage pathway. SIRT1 is recruited to the Nampt promoter and contributes to the circadian synthesis of its own coenzyme. Using the specific inhibitor FK866, we demonstrate that NAMPT is required to modulate circadian gene expression. Our findings reveal an interlocked transcriptional-enzymatic feedback loop that governs the molecular interplay between cellular metabolism and circadian rhythms.
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DOI:
10.1083/jcb.200504028
发表时间:
2005-08-01
期刊:
The Journal of cell biology
影响因子:
--
作者:
Wang J;Zhai Q;Chen Y;Lin E;Gu W;McBurney MW;He Z
通讯作者:
He Z
影响因子:
29
作者:
Revollo, Javier R.;Koerner, Antje;Imai, Shin-Ichiro
通讯作者:
Imai, Shin-Ichiro
影响因子:
56.9
作者:
Turek, FW;Joshu, C;Bass, J
通讯作者:
Bass, J
影响因子:
64.5
作者:
Nakahata Y;Kaluzova M;Grimaldi B;Sahar S;Hirayama J;Chen D;Guarente LP;Sassone-Corsi P
通讯作者:
Sassone-Corsi P
影响因子:
64.5
作者:
Asher, Gad;Gatfield, David;Schibler, Ueli
通讯作者:
Schibler, Ueli