Regulation of Id1 protein expression in mouse embryo fibroblasts by the type 1 insulin-like growth factor receptor.

Abstract

The activated type 1 insulin-like growth factor (IGF-IR) increases the expression of Id1 proteins in mouse embryo fibroblasts (MEF). Up-regulation depends on a functional receptor and on multiple pathways originating from different domains of the receptor. In MEF, Id1 protein expression is also up-regulated by serum and certain oncogenes. Signaling through Stat3 plays an important, but not exclusive, role in the up-regulation of Id1 protein levels. In all instances, the increase in Id1 protein expression is paralleled by a corresponding increase in Id1 promoter activity, as measured with a reporter gene.

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@article{Belletti2002RegulationOI, title={Regulation of Id1 protein expression in mouse embryo fibroblasts by the type 1 insulin-like growth factor receptor.}, author={Barbara Belletti and Robert A Drakas and Andrea Morrione and Xiao Tu and Marco Prisco and Tina Chien-Wen Yuan and Ivan Casaburi and Renato Baserga}, journal={Experimental cell research}, year={2002}, volume={277 1}, pages={107-18} }