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- Title
Downregulation of CPPED1 Expression Improves Glucose Metabolism In Vitro in Adipocytes.
- Authors
Vaittinen, Maija; Kaminska, Dorota; Käkelä, Pirjo; Eskelinen, Matti; Kolehmainen, Marjukka; Pihlajamäki, Jussi; Uusitupa, Matti; Pulkkinen, Leena
- Abstract
We have previously demonstrated that the expression of calcineurin-like phosphoesterase domain containing 1 (CPPED1) decreases in adipose tissue (AT) after weight reduction. However, the function of CPPED1 in AT is unknown. Therefore, we investigated whether the change in CPPED1 expression is connected to changes in adipocyte glucose metabolism. First, we confirmed that the expression of CPPED1 decreased after weight loss in subcutaneous AT. Second, the expression of CPPED1 did not change during adipocyte differentiation. Third, CPPED1 knockdown with small interfering RNA increased expression of genes involved in glucose metabolism (adiponectin, adiponectin receptor 1, and GLUT4) and improved insulin-stimulated glucose uptake. To conclude, CPPED1 is a novel molecule involved in AT biology, and CPPED1 is involved in glucose uptake in adipocytes.
- Subjects
GLUCOSE metabolism; CALCINEURIN; ADIPOSE tissues; SMALL interfering RNA; ADIPONECTIN
- Publication
Diabetes, 2013, Vol 62, Issue 11, p3747
- ISSN
0012-1797
- Publication type
Article
- DOI
10.2337/db13-0830