Ketamine influences CLOCK:BMAL1 function leading to altered circadian gene expression.
Ketamine influences CLOCK:BMAL1 function leading to altered circadian gene expression.
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DOI:
10.1371/journal.pone.0023982
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发表时间:
2011
期刊:
影响因子:
3.7
通讯作者:
Sassone-Corsi P
中科院分区:
文献类型:
--
作者:
Bellet MM;Vawter MP;Bunney BG;Bunney WE;Sassone-Corsi P
Major mood disorders have been linked to abnormalities in circadian rhythms, leading to disturbances in sleep, mood, temperature, and hormonal levels. We provide evidence that ketamine, a drug with rapid antidepressant effects, influences the function of the circadian molecular machinery. Ketamine modulates CLOCK:BMAL1-mediated transcriptional activation when these regulators are ectopically expressed in NG108-15 neuronal cells. Inhibition occurs in a dose-dependent manner and is attenuated after treatment with the GSK3β antagonist SB21673. We analyzed the effect of ketamine on circadian gene expression and observed a dose-dependent reduction in the amplitude of circadian transcription of the Bmal1, Per2, and Cry1 genes. Finally, chromatin-immunoprecipitation analyses revealed that ketamine altered the recruitment of the CLOCK:BMAL1 complex on circadian promoters in a time-dependent manner. Our results reveal a yet unsuspected molecular mode of action of ketamine and thereby may suggest possible pharmacological antidepressant strategies.
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