Evidence for the role of AMPK in regulating PGC-1 alpha expression and mitochondrial proteins in mouse epididymal adipose tissue
Journal article
Wan, Zhongxiao, Root-Mccaig, Jared, Castellani, Laura, Kemp, Bruce, Steinberg, Gregory and Wright, David. (2014). Evidence for the role of AMPK in regulating PGC-1 alpha expression and mitochondrial proteins in mouse epididymal adipose tissue. Obesity: a resourch journal. 22(3), pp. 730 - 738. https://doi.org/10.1002/oby.20605
Authors | Wan, Zhongxiao, Root-Mccaig, Jared, Castellani, Laura, Kemp, Bruce, Steinberg, Gregory and Wright, David |
---|---|
Abstract | Objective: PGC-1α is a transcriptional co-activator and master regulator of mitochondrial biogenesis. While extensively studied in skeletal and cardiac muscle, recent findings suggest that white adipose tissue PGC-1α plays an important role in regulating glucose homeostasis. The purpose of the present investigation was to evaluate the role of AMPK in regulating PGC-1α and mitochondrial enzymes in mouse epididymal and inguinal subcutaneous adipose tissue. Methods: Mitochondrial protein content and norepinephrine and CL 316,243-induced PGC-1α mRNA expression were studied in mouse epididymal and inguinal adipose tissue from wild-type and AMPK β1−/− mice. Results: The protein content and phosphorylation of AMPKα was reduced in epididymal adipose tissue from AMPK β1−/− compared to WT mice, concomitant with decreases in PGC-1α and mitochondrial marker proteins. Norepinephrine and CL 316,243-mediated induction of PGC-1α were decreased in cultured epididymal adipose tissue from AMPK β1−/− relative to WT mice. In inguinal adipose tissue from AMPK β1−/− mice, mitochondrial marker protein content and norepinephrine and CL 316,243-mediated increases in PGC-1α were normal despite reductions in the content and phosphorylation of AMPKα. Conclusions: Norepinephrine- and CL 316,243-mediated induction of PGC-1α and mitochondrial protein expression is regulated by AMPK in epididymal, but not inguinal adipose tissue. |
Year | 2014 |
Journal | Obesity: a resourch journal |
Journal citation | 22 (3), pp. 730 - 738 |
ISSN | 1071-7323 |
Digital Object Identifier (DOI) | https://doi.org/10.1002/oby.20605 |
Page range | 730 - 738 |
Publisher's version | File Access Level Controlled |
https://acuresearchbank.acu.edu.au/item/895yz/evidence-for-the-role-of-ampk-in-regulating-pgc-1-alpha-expression-and-mitochondrial-proteins-in-mouse-epididymal-adipose-tissue
Restricted files
Publisher's version
100
total views0
total downloads2
views this month0
downloads this month