Reanalysis of primate brain circadian transcriptomics reveals connectivity-related oscillations.

Reanalysis of primate brain circadian transcriptomics reveals connectivity-related oscillations.
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DOI:
10.1016/j.isci.2023.107810
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发表时间:
2023-10-20
期刊:
影响因子:
5.8
通讯作者:
Alachkar, Amal
Alachkar, Amal
中科院分区:
综合性期刊2区
文献类型:
--
作者:
Lee, Justine;Chen, Siwei;Monfared, Roudabeh Vakil;Derdeyn, Pieter;Leong, Kenneth;Chang, Tiffany;Beier, Kevin;Baldi, Pierre;Alachkar, Amal

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Research shows that brain circuits controlling vital physiological processes are closely linked with endogenous time-keeping systems. In this study, we aimed to examine oscillatory gene expression patterns of well-characterized neuronal circuits by reanalyzing publicly available transcriptomic data from a spatiotemporal gene expression atlas of a non-human primate. Unexpectedly, brain structures known for regulating circadian processes (e.g., hypothalamic nuclei) did not exhibit robust cycling expression. In contrast, basal ganglia nuclei, not typically associated with circadian physiology, displayed the most dynamic cycling behavior of its genes marked by sharp temporally defined expression peaks. Intriguingly, the mammillary bodies, considered hypothalamic nuclei, exhibited gene expression patterns resembling the basal ganglia, prompting reevaluation of their classification. Our results emphasize the potential for high throughput circadian gene expression analysis to deepen our understanding of the functional synchronization across brain structures that influence physiological processes and resulting complex behaviors. Our study provides novel insights into circadian gene expression in neuronal circuits Brain regions known for their circadian regulation show low robust transcript cycling The mammillary body’s gene oscillations challenge its traditional classifications Some related brain regions share distinct gene expression patterns while others do not Neuroscience; Bioinformatics; Expression study
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