Changes in protein kinase C activity are associated with the differentiation of Friend erythroleukemia cells.
Changes in protein kinase C activity are associated with the differentiation of Friend erythroleukemia cells.
复制标题
蛋白激酶C活性的变化与Friend红白血病细胞的分化相关。
DOI：
10.1016/0167-4889(87)90141-8
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发表时间：
1987
期刊：
影响因子：
--
通讯作者：
Prochownik,EV
中科院分区：
文献类型：
--
作者：
Balazovich,KJ;Portnow,D;Boxer,LA;Prochownik,EV
We investigated the activity and cellular distribution of protein kinase C during the dimethylsulfoxide (DMSO) and hypoxanthine-induced differentiation of Friend murine erythroleukemia cells. Most of the cellular protein kinase C activity was found in the soluble fraction of unstimulated Friend cells. Within 15 min of the addition of DMSO or hypoxanthine, protein kinase C underwent a dramatic and prolonged reversal of this distribution which was accompanied by a gradual decline in total cellular protein kinase C activity over the ensuing 5 days. The loss of total activity was found to be dose dependent although maximal translocation from soluble to insoluble components occurred at even lower concentrations of the inducers tested. Two clones of Friend cells, selected for their failure to differentiate in response to DMSO, showed alterations in protein kinase C activity and/or distribution following DMSO addition when compared to wild-type Friend cells. These data show that different inducers of Friend cell differentiation have similar effects on cellular protein kinase C, that the protein kinase C changes accompanying this process are immediate but prolonged, and that changes in protein kinase C activity and distribution are associated with Friend cell differentiation.
