Abstract
Pitx2 is a bicoid-related homeodomain factor that is required for effective cell type-specific proliferation directly activating a specific growth-regulating gene cyclin D2 . Here, we report that Pitx2, in response to the Wnt/β-catenin pathway and growth signals, also can regulate c -Myc and cyclin D1. Investigation of molecular mechanisms required for Pitx2-dependent proliferation, in these cases, further supports a nuclear role for β-catenin in preventing the histone deacetylase 1-dependent inhibitory functions of several DNA-binding transcriptional repressors, potentially including E2F4/p130 pocket protein inhibitory complex, as well as lymphoid enhancer factor 1 and Pitx2, by dismissal of histone deacetylase 1 and loss of its enzymatic activity. Thus, β-catenin plays a signal-integrating role in Wnt- and growth factor-dependent proliferation events in mammalian development by both derepressing several classes of repressors and by activating Pitx2, regulating the activity of several growth control genes.
Bibliography
Baek, S. H., Kioussi, C., Briata, P., Wang, D., Nguyen, H. D., Ohgi, K. A., Glass, C. K., Wynshaw-Boris, A., Rose, D. W., & Rosenfeld, M. G. (2003). Regulated subset of G 1 growth-control genes in response to derepression by the Wnt pathway. Proceedings of the National Academy of Sciences, 100(6), 3245â3250.
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Dates
Type | When |
---|---|
Created | 22 years, 5 months ago (March 18, 2003, 6:15 p.m.) |
Deposited | 3 years, 4 months ago (April 12, 2022, 8:46 a.m.) |
Indexed | 2 months, 1 week ago (June 23, 2025, 7:24 a.m.) |
Issued | 22 years, 5 months ago (March 10, 2003) |
Published | 22 years, 5 months ago (March 10, 2003) |
Published Online | 22 years, 5 months ago (March 10, 2003) |
Published Print | 22 years, 5 months ago (March 18, 2003) |
@article{Baek_2003, title={Regulated subset of G 1 growth-control genes in response to derepression by the Wnt pathway}, volume={100}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0330217100}, DOI={10.1073/pnas.0330217100}, number={6}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Baek, Sung Hee and Kioussi, Chrissa and Briata, Paola and Wang, Degeng and Nguyen, H. D. and Ohgi, Kenneth A. and Glass, Christopher K. and Wynshaw-Boris, Anthony and Rose, David W. and Rosenfeld, Michael G.}, year={2003}, month=mar, pages={3245–3250} }