A-to-I RNA editing enzyme ADAR2 regulates light-induced circadian phase-shift.
A-to-I RNA editing enzyme ADAR2 regulates light-induced circadian phase-shift.
复制标题
DOI:
10.1038/s41598-018-33114-6
复制
发表时间:
2018-10-04
影响因子:
4.6
通讯作者:
Fukada Y
中科院分区:
文献类型:
--
作者:
Terajima H;Yoshitane H;Yoshikawa T;Shigeyoshi Y;Fukada Y
In mammals, the central circadian clock is located in the suprachiasmatic nucleus (SCN) of the hypothalamus and it orchestrates peripheral clocks in the whole body to organize physiological and behavioral rhythms. Light-induced phase-shift of the SCN clock enables synchronization of the circadian clock system with 24-h environmental light/dark cycle. We previously found that adenosine deaminase acting on RNA 2 (Adar2), an A-to-I RNA editing enzyme catalyzing rhythmic A-to-I RNA editing, governs a wide range of mRNA rhythms in the mouse liver and regulates the circadian behavior. In brain, ADAR2-mediated A-to-I RNA editing was reported to occur in various transcripts encoding ion channels and neurotransmitter receptors, which could influence neuronal function of the SCN. Here we show that ADAR2 plays a crucial role for light-induced phase-shift of the circadian clock. Intriguingly, exposure of Adar2-knockout mice to a light pulse at late night caused an aberrant phase-advance of the locomotor rhythms. By monitoring the bioluminescence rhythms of the mutant SCN slices, we found that a phase-advance induced by treatment with pituitary adenylyl cyclase-activating polypeptide (PACAP) was markedly attenuated. The present study suggests that A-to-I RNA editing in the SCN regulates a proper phase response to light in the mouse circadian system.
登录
查看更多内容
影响因子:
11.4
作者:
Heale, Bret S. E.;Keegan, Liam P.;McGurk, Leeanne;Michlewski, Gracjan;Brindle, James;Stanton, Chloe M.;Caceres, Javier F.;O'Connell, Mary A.
通讯作者:
O'Connell, Mary A.
DOI:
10.1016/s0169-328x(03)00317-6
发表时间:
2003-10-07
期刊:
MOLECULAR BRAIN RESEARCH
影响因子:
--
作者:
Barbon, A;Vallini, I;Barlati, S
通讯作者:
Barlati, S
DOI:
10.1126/science.1195027
发表时间:
2010-12-03
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Bass J;Takahashi JS
通讯作者:
Takahashi JS
影响因子:
64.8
作者:
Higuchi, M;Stefan, M;Seeburg, PH
通讯作者:
Seeburg, PH
影响因子:
10.5
作者:
Kojima, Shihoko;Sher-Chen, Elaine L.;Green, Carla B.
通讯作者:
Green, Carla B.