Differential expression of miRNAs during white adipose tissue browning induced by different methods and its potential regulatory mechanisms
10.3760/cma.j.issn.0254-9026.2020.10.024
- VernacularTitle:不同方式诱导白色脂肪组织棕色化过程中差异表达微小RNA及其潜在调控机制
- Author:
Hangjiang REN
1
;
Tingting HAN
;
Qiyu PAN
;
Yong MAN
;
Dapeng DAI
;
Jian LI
;
Guoping LI
Author Information
1. 北京医院 国家老年医学中心 国家卫生健康委北京老年医学研究所 国家卫生健康委北京老年医学重点实验室 中国医学科学院老年医学研究院
- From:
Chinese Journal of Geriatrics
2020;39(10):1208-1213
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the differential expression of miRNAs during white adipose tissue(WAT)browning in mice under different stimulation conditions, and to analyze the potential regulatory mechanisms.Methods:Mouse models of subcutaneous WAT(sWAT)browning were established by different methods: cold-induced browning and intraperitoneal injection of CL316-243.HE staining and analysis of thermogenesis-related gene expression were used to validate the browning models.miRNAs expression profiles in different conditions were described by RNA-sequencing(RNA-seq)and miRNAs with similar expression patterns in the two groups were detected via screening.Target genes of miRNAs were predicted by bioinformatics, and their expression levels were verified by quantitative real-time PCR(qRT-PCR).Results:Both cold-induced browning and intraperitoneal injection of CL316-243 were able to activate the browning of sWAT, and the miRNA expression profile of sWAT showed significant differences before and after induction.After screening differentially expressed miRNAs, the expression of Mir-30E-3p was increased and the expression of Mir-181A-5p was decreased under different browning-inducing conditions in WAT.The prediction and validation of target genes revealed that cyclin-dependent kinase 6(Cdk6)and sirtuin 1(Sirt1)were potential targets regulated by miR-30e-3p and miR-181a-5p in the browning of sWAT, respectively.Conclusions:There are significant differences in miRNA expression during the browning of sWAT in mice induced by cold stimulation and CL316-243 injection.MiR-30e-3p and miR-181a-5p may be involved in the regulation of the sWAT browning process through target genes Cdk6 and Sirt1, respectively.
