Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8645594 | Gene | 2018 | 20 Pages |
Abstract
The core circadian clock gene, Clock, is a positive component of the transcription/translation feedback loop in the master pacemaker suprachiasmatic nucleus (SCN) in mammals. The robust daytime peak of some clock genes in the wild-type SCN is absent in Clock mutant mice. However, very little is known about the impact of Clock mutation on the expression of other functional genes in SCN. Here, we performed cDNA microarray and found 799 differentially expressed genes (DEGs) at zeitgeber time 2 (ZT2) and 1289 DEGs at ZT14 in SCN of Clockâ³19/â³19 mutant mice. KEGG pathway analysis showed that the changed mRNAs were highly associated with hedgehog signaling pathway, retinol metabolism, allograft rejection, drug metabolism, hematopoietic cell lineage and neuroactive ligand-receptor interaction. The top 14 and 71 hub genes were identified from the protein-protein interaction (PPI) network at ZT2 and ZT14, respectively. The sub-networks revealed hub genes were involved in olfactory transduction and neuroactive ligand-receptor interaction pathways. These results demonstrate the Clockâ³19/â³19 mutation alters the expression of various genes involved in a wide spectrum of biological function in mouse SCN, which are helpful for better understanding the function of Clock and potential regulatory mechanisms.
Keywords
SCNVIPR2NPY1RHoxA5GABRA2GATA binding protein 4GATA4MT2MT1vasopressin 1a receptorAVPR1aTLRqRT-PCRVIPDEGsAVPbipolar disorderMolecular functionMicroarrayReal time quantitative PCRCircadian ClockFcaBiological processeswild typeSuprachiasmatic nucleusvasopressinvasoactive intestinal peptideolfactory bulbDifferentially expressed genesToll-like receptors
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Genetics
Authors
Yanli Wang, Ke Lv, Mei Zhao, Fengji Liang, Hailong Chen, Guohua Ji, Tingmei Wang, Yongliang Zhang, Hongqing Cao, Yinghui Li, Lina Qu,