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Changes in cell shape, cytoskeletal proteins and adhesion sites of cultured cells after extracellular Ca2+ chelation BJMBR
Mermelstein,C.S.; Rebello,M.I.L.; Amaral,L.M.; Costa,M.L..
Although much is known about the molecules involved in extracellular Ca2+ regulation, the relationship of the ion with overall cell morphology is not understood. The objective of the present study was to determine the effect of the Ca2+ chelator EGTA on the major cytoskeleton components, at integrin-containing adhesion sites, and their consequences on cell shape. Control mouse cell line C2C12 has a well-spread morphology with long stress fibers running in many different directions, as detected by fluorescence microscopy using rhodamine-phalloidin. In contrast, cells treated with EGTA (1.75 mM in culture medium) for 24 h became bipolar and showed less stress fibers running in one major direction. The adhesion plaque protein alpha5-integrin was detected by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cytoskeleton; Extracellular Ca2+; Cell shape; Microfilaments; Microtubules; Integrin.
Ano: 2003 URL:
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