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Updated: Aug 12, 2026

Isolation and Differentiation of Stromal Vascular Cells to Beige/Brite Cells
Published on: March 28, 2013
Trans-differentiation of myoblasts to adipoblasts: triggering effects of fatty acids and thiazolidinediones
P A Grimaldi1, L Teboul, H Inadera
1Expression des Gènes et Nutriments Centre de Biochimie, UMR-134 CNRS, Université de Nice-Sophia Antipolis, Faculté des Sciences, Nice, France.
Abstract:
Long-chain fatty acids (LCFA) and thiazolidinediones are potent activators of differentiation of preadipose cells. These adipogenic effects are, at least in part, mediated by nuclear receptors of the peroxisome proliferator-activated receptor (PPAR) subfamily. This report describes the effects of these agents on the differentiation pathway of myoblasts. Exposure of C2C12 myoblasts to LCFA or thiazolidinediones prevents the formation of multinucleated myotubes and the expression of specific muscle markers, leading in parallel to the expression of a typical adipose differentiation program. Similar transdifferentiation also occurs in mouse muscle satellite cells maintained in primary cell culture. These observations indicate that PPAR activators, such as LCFA or thiazolidinediones, convert the differentiation pathway of myoblasts into that of adipoblasts. This phenomenon could explain the appearance of adipocytes into muscle which occurs in some pathological states characterized by an increase of fatty acid disposal, such as obesity or mitochondrial myopathy.
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