Abstract
Isolated myometrial cells prepared by collagenase and pronase treatment of the tissue were rendered permeable to charged molecules and Ca ions. ATP dependent Ca uptake studied in these cells showed that Ca uptake by the intracellular organelles was well preserved. Inhibitors of mitrochondrial metabolism caused about 90% inhibition of Ca uptake by the cells. Whereas D-600 had no effect on Ca uptake, diethylstilbestrol caused a signficant inhibition. This preparation which requires no homogenization should prove useful for study of Ca uptake and possibly other processes requiring exogenous ATP.
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