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Publication : Nodal and Cripto-1: embryonic pattern formation genes involved in mammary gland development and tumorigenesis.

First Author  Kenney NJ Year  2004
Journal  J Mammary Gland Biol Neoplasia Volume  9
Issue  2 Pages  133-44
PubMed ID  15300009 Mgi Jnum  J:92911
Mgi Id  MGI:3054719 Doi  10.1023/B:JOMG.0000037158.91940.1c
Citation  Kenney NJ, et al. (2004) Nodal and cripto-1: embryonic pattern formation genes involved in mammary gland development and tumorigenesis. J Mammary Gland Biol Neoplasia 9(2):133-44
abstractText  Members of the TGFbeta superfamily and EGF-CFC family, such as Nodal and Cripto, are important mediators of anterior-posterior and left-right axis specification during embryogenesis. In this paper, we review the role of Nodal and Cripto as critical morphogen-like molecules, with an emphasis on Nodal and EGF-CFC signaling during embryonic pattern formation. New evidence from gene expression and transgenic mouse studies have shown that both Nodal and Cripto-1 are expressed within the mammary duct and that modulation of these genes can disrupt normal branching morphogenesis resulting in epithelial disorganization and defective ductal architecture. We describe these new findings and propose that Cripto and Nodal are candidate mammary morphogens. Finally, the data linking overexpression of Cripto and perturbations of Cripto signaling to cell transformation and tumor formation are discussed. The fact that Cripto can modulate multiple pathways suggests it may act to deregulate growth inhibitors/homeostasis factors early in the cell transformation process and then activate prosurvival pathways dependent on MAPK and PI3K/Akt later in fully transformed phenotypes.
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