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Patterning of cell assemblies regulated by adhesion receptors of the cadherin superfamily Takeichi M; Nakagawa S; Aono S; Usui T; Uemura TPhilos Trans R Soc Lond B Biol Sci 2000[Jul]; 355 (1399): 885-90During morphogenesis, cell-cell association patterns are dynamically altered. We are interested in how cell adhesion molecules can regulate the patterning of cellular assemblies. Cadherins, a group of cell-cell adhesion receptors, are crucial for the organized assembly of many cell types, but they also regulate dynamic aspects of cell association. For example, during neural crest emigration from the neural tube, the cadherin subtypes expressed by crest cells are switched from one subtype to another. Artificial perturbation of this switch results in blocking of their escape from the neural tube. Intracellular modulations of cadherin activity also seem to play a role in regulation of cell adhesion. We identified p120ctn as a regulator of cadherin function in carcinoma cells. With such regulators, cells may make a choice as to whether they should maintain stable cell contacts or disrupt their association. Finally, we found another type of cadherin-mediated cell patterning: Flamingo, a seven-pass transmembrane cadherin, regulates planar cell polarity in Drosophila imaginal discs. Thus, the cadherin superfamily receptors control the patterning of cell assemblies through a variety of mechanisms.|Animals[MESH]|Cadherins/*metabolism[MESH]|Catenins[MESH]|Cell Adhesion[MESH]|Cell Adhesion Molecules/*metabolism[MESH]|Cell Polarity[MESH]|Delta Catenin[MESH]|Neural Crest[MESH]|Phosphoproteins/*metabolism[MESH] |
