Slik Sterile-20 kinase regulates Moesin activity to promote epithelial integrity during tissue growth
Copyright policy )Slik Sterile-20 kinase regulates Moesin activity to promote epithelial integrity during tissue growth
The Drosophila Sterile-20 kinase Slik promotes tissue growth during development by stimulating cell proliferation and by preventing apoptosis. Proliferation within an epithelial sheet requires dynamic control of cellular architecture. Epithelial integrity fails in slik mutant imaginal discs. Cells leave the epithelium and undergo apoptosis. The abnormal behavior of slik mutant cells is due to failure to phosphorylate and activate Moesin, which leads to excess Rho1 activity. This is distinct from Slik's effects on cell proliferation, which are mediated by Raf. Thus Slik acts via distinct pathways to coordinate cell proliferation with epithelial cell behavior during tissue growth.
rho GTP-Binding Proteins, Saccharomyces cerevisiae Proteins, Microvilli, Cell Survival, Microfilament Proteins, Intracellular Signaling Peptides and Proteins, Apoptosis, Cell Differentiation, Epithelial Cells, Protein Serine-Threonine Kinases, MAP Kinase Kinase Kinases, Actins, Larva, Mutation, Animals, Drosophila Proteins, Wings, Animal, Drosophila, Phosphorylation, Cell Division
rho GTP-Binding Proteins, Saccharomyces cerevisiae Proteins, Microvilli, Cell Survival, Microfilament Proteins, Intracellular Signaling Peptides and Proteins, Apoptosis, Cell Differentiation, Epithelial Cells, Protein Serine-Threonine Kinases, MAP Kinase Kinase Kinases, Actins, Larva, Mutation, Animals, Drosophila Proteins, Wings, Animal, Drosophila, Phosphorylation, Cell Division
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