Phosphoinositides specify polarity during epithelial organ development.

Comer, Frank I; Parent, Carole A · Cell · 2007

basic_science · Level V

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Abstract

The molecular mechanisms that integrate cellular polarity with tissue architecture during epithelial morphogenesis are poorly understood. Using a three-dimensional model of epithelial morphogenesis, report that the phosphatase PTEN and phosphatidylinositol (4,5)-bisphosphate [PI(4,5)P2] regulate the GTPase Cdc42 and the kinase aPKC to generate the apical plasma membrane domain and maintain apical-basolateral polarity.

Medical subject headings