| First Author | Chou CF | Year | 2014 |
| Journal | Diabetes | Volume | 63 |
| Issue | 9 | Pages | 2949-61 |
| PubMed ID | 24722250 | Mgi Jnum | J:229875 |
| Mgi Id | MGI:5754706 | Doi | 10.2337/db13-1901 |
| Citation | Chou CF, et al. (2014) KSRP ablation enhances brown fat gene program in white adipose tissue through reduced miR-150 expression. Diabetes 63(9):2949-61 |
| abstractText | Brown adipose tissue oxidizes chemical energy for heat generation and energy expenditure. Promoting brown-like transformation in white adipose tissue (WAT) is a promising strategy for combating obesity. Here, we find that targeted deletion of KH-type splicing regulatory protein (KSRP), an RNA-binding protein that regulates gene expression at multiple levels, causes a reduction in body adiposity. The expression of brown fat-selective genes is increased in subcutaneous/inguinal WAT (iWAT) of Ksrp(-/-) mice because of the elevated expression of PR domain containing 16 and peroxisome proliferator-activated receptor gamma coactivator 1alpha, which are key regulators promoting the brown fat gene program. The expression of microRNA (miR)-150 in iWAT is decreased due to impaired primary miR-150 processing in the absence of KSRP. We show that miR-150 directly targets and represses Prdm16 and Ppargc1a, and that forced expression of miR-150 attenuates the elevated expression of brown fat genes caused by KSRP deletion. This study reveals the in vivo function of KSRP in controlling brown-like transformation of iWAT through post-transcriptional regulation of miR-150 expression. |
