Calcium mobilization and exocytosis after one mechanical stretch of lung epithelial cells.


Deep inflation of the lung stimulates surfactant secretion by unknown mechanisms. The hypothesis that mechanical distension directly stimulates type II cells to secrete surfactant was tested by stretching type II cells cultured on silastic membranes. The intracellular Ca2+ concentration was measured in single cells, before and after stretching. A single… (More)


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