Phosphoinositide signaling pathways: promising role as builders of epithelial cell polarity. Gassama-Diagne, A. & Payrastre, B. Int Rev Cell Mol Biol, 273:313–43, 2009. abstract bibtex Polarity is a prerequisite for proper development and function of epithelia in metazoa. The major feature of polarized epithelial cells is the presence of specialized domains with asymmetric distribution of macromolecular contents including proteins and lipids. The apical domain is involved in exchange with the organ lumen, and the basolateral membrane maintains contact with neighboring cells and the underlying extracellular matrix. The two domains are separated by tight junctions, which act as a diffusion barrier to prevent free mixing of domain-specific proteins and lipids. Extensive studies have shed light on the numerous protein families involved in cell polarization. However, many questions still remain regarding the molecular mechanisms of polarity regulation and in particular very little is known about the role of lipids in building polarity. In this chapter, essential determinants of epithelial polarity will be reviewed with a particular focus on metabolism and function of phosphoinositides.
@article{gassama-diagne_phosphoinositide_2009,
title = {Phosphoinositide signaling pathways: promising role as builders of epithelial cell polarity},
volume = {273},
issn = {1937-6448 (PRINT)},
shorttitle = {Phosphoinositide signaling pathways: promising role as builders of epithelial cell polarity},
abstract = {Polarity is a prerequisite for proper development and function of epithelia in metazoa. The major feature of polarized epithelial cells is the presence of specialized domains with asymmetric distribution of macromolecular contents including proteins and lipids. The apical domain is involved in exchange with the organ lumen, and the basolateral membrane maintains contact with neighboring cells and the underlying extracellular matrix. The two domains are separated by tight junctions, which act as a diffusion barrier to prevent free mixing of domain-specific proteins and lipids. Extensive studies have shed light on the numerous protein families involved in cell polarization. However, many questions still remain regarding the molecular mechanisms of polarity regulation and in particular very little is known about the role of lipids in building polarity. In this chapter, essential determinants of epithelial polarity will be reviewed with a particular focus on metabolism and function of phosphoinositides.},
journal = {Int Rev Cell Mol Biol},
author = {Gassama-Diagne, A. and Payrastre, B.},
year = {2009},
keywords = {Animals, Cell, Cells/, Epithelial, Humans, Phosphatidylinositols/chemistry/, Polarity, Signal, Transduction, cytology, metabolism},
pages = {313--43},
}
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