Extracellular ATP increases cytoplasmic free Ca2+ concentration in clonal insulin-producing RINm5F cells. A mechanism involving direct interaction with both release and refilling of the inositol 1,4,5-trisphosphate-sensitive Ca2+ pool.

Extracellular ATP increases cytoplasmic free Ca2+ concentration in clonal insulin-producing RINm5F cells. A mechanism involving direct interaction with both release and refilling of the inositol 1,4,5-trisphosphate-sensitive Ca2+ pool.

Effects of extracellularly applied ATP (added as disodium salt) on stimulus-secretion coupling were investigated in clonal insulin-producing RINm5F cells. Cytoplasmic free Ca2+ concentration [( Ca2+]i), electrical activity, membrane potential, formation of InsP3 and insulin release were measured. Ad...

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Bibliographic Details
Main Authors:	Arkhammar, P, Hallberg, A, Kindmark, H, Nilsson, T, Rorsman, P, Berggren, P
Format:	Journal article
Language:	English
Published:	1990

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