کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1929668 | 1050470 | 2012 | 8 صفحه PDF | دانلود رایگان |
F9 embryonic carcinoma (EC) cells undergo extra-embryonic endodermal (ExE) differentiation in response to retinoic acid (RA) treatment, which induces the expression of two isoforms (p96 and p67) of the adaptor protein, Disabled-2 (Dab2). In the current study, constitutive and ectopic expression of the p96 isoform induced ExE differentiation in F9 EC cells in the absence of RA treatment via the activation of GATA-4 by p96. During the RA-induced differentiation process, Dab2 expression is induced by the GATA factors in a coherent feed-forward loop; on the other hand, we showed that p96 regulates GATA-4 in a positive feed-back manner in this study. Our results indicate that p96 Dab2 plays a key role in the ExE differentiation process.
► Disabled-2 (Dab2) p96 regulates GATA-4 in a feed-back manner.
► Constitutive expression of p96 induces differentiation in F9 cells without RA.
► p96 induces differentiation via activation of GATA-4 in RA-induced differentiation.
► We propose that the new regulatory circuits involved in RA-induced differentiation.
Journal: Biochemical and Biophysical Research Communications - Volume 421, Issue 3, 11 May 2012, Pages 591–598