Astragalus polysaccharide regulates brown adipocytes differentiation by miR-6911 targeting Prdm16.
Astragalus polysaccharide
PRDM16
brown adipogenesis
insulin sensitivity
miRNAs
Journal
Lipids
ISSN: 1558-9307
Titre abrégé: Lipids
Pays: United States
ID NLM: 0060450
Informations de publication
Date de publication:
01 2022
01 2022
Historique:
revised:
15
10
2021
received:
25
08
2021
accepted:
21
10
2021
pubmed:
6
11
2021
medline:
28
1
2022
entrez:
5
11
2021
Statut:
ppublish
Résumé
Brown adipose tissue (BAT) is a specialized tissue in mammals related to thermogenesis. The Astragalus polysaccharide (APS) is the major natural active component of Astragalus membranaceus, which has been recognized as one of the most popular herbal medicines worldwide. The role and possible mechanisms of APS on brown adipocytes differentiation is not well defined. Here, we explored the effect of APS on the differentiation of brown adipocytes in C3H10T 1/2 cells. The results showed that APS promoted the differentiation of brown adipocytes and improved insulin sensitivity along with significant increases in the expression of brown adipogenic marker proteins (C/EBPα, C/EBPβ, and PPARγ), thermogenesis marker proteins (UCP1, PRDM16, and PGC-1α), and insulin sensitivity marker protein (GLUT4). Meanwhile, the results showed that the amount of the phosphorylation of insulin receptor substrate 1 (p-IRS1) and phospho-AKT (p-AKT) which are critical factors in the insulin signaling pathway was increased without changing the total amount of IRS and AKT. Furthermore, the results of RNA-seq showed that APS altered the expression profiles of various miRNAs, and among which the expression of miR-6911 as a universal regulatory factor was significantly decreased. Importantly, we found that miR-6911 regulated the differentiation of brown adipocytes by targeting PR domain-containing 16 (Prdm16). In addition, after transfection of miR-6911 mimics, compared with the control and inhibitor group, PRDM16 protein expression significantly decreased, which was accompanied by the decrease of PPARγ, UCP1, and PGC-1α. Collectively, our results indicated that APS regulated brown adipocytes differentiation in C3H10T 1/2 cells via miRNA-6911 targeting Prdm16.
Substances chimiques
DNA-Binding Proteins
0
MicroRNAs
0
Polysaccharides
0
Prdm16 protein, mouse
0
Transcription Factors
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
45-55Informations de copyright
© 2021 AOCS.
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