Activin A inhibits differentiation of 3T3-L1 preadipocyte.
Mol Cell Endocrinol
; 232(1-2): 21-6, 2005 Mar 31.
Article
en En
| MEDLINE
| ID: mdl-15737465
ABSTRACT
We investigated the effect of activin A on differentiation of 3T3-L1 preadipocyte. Activin A suppressed the induction of terminal differentiation markers such as glycerol-3-phosphate dehydrogenase (GPDH) activity, lipid accumulation, and the expression of adipocyte fatty acid-binding protein (aP2) mRNA when the cells were treated with activin A throughout the differentiation period. Activin A treatment during the early phase decreased GPDH activity and aP2 mRNA level, and also reduced the expression of peroxisome proliferator-activated receptor (PPAR) gamma and CCAAT/enhancer binding protein (C/EBP) alpha mRNAs without affecting the expressions of the active isoforms of C/EBPbeta and its mRNA. On the other hand, activin A treatment had no effect on the mitotic clonal expansion. These results indicate that activin A inhibits adipogenesis via affecting the transcriptional factor cascade upstream of PPARgamma expression.
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Base de datos:
MEDLINE
Asunto principal:
Diferenciación Celular
/
Adipocitos
/
Activinas
/
Subunidades beta de Inhibinas
Idioma:
En
Revista:
Mol Cell Endocrinol
Año:
2005
Tipo del documento:
Article