prior treatment with pertussis toxin of g0-arrested hamster fibroblasts ( ccl39 ) results in a dose-dependent inhibition of two early events of the mitogenic response elicited by alpha-thrombin : accumulation of inositol phosphates in li+-treated cells , and activation of the na+/h+ antiport , measured either by the amiloride-sensitive 22na+ influx or by the increase in intracellular ph .
C0016030
fibroblasts
C0007634
cells