Retinoic acid specifically activates an oleate‐dependent phospholipase D in the nuclei of LA‐N‐1 neuroblastoma cells
Retinoic acid specifically activates an oleate‐dependent phospholipase D in the nuclei of LA‐N‐1 neuroblastoma cells
复制标题
视黄酸特异性激活 LA-N-1 神经母细胞瘤细胞核中的油酸依赖性磷脂酶 D
DOI:
10.1016/s0014-5793(03)00313-2
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发表时间:
2003
期刊:
影响因子:
3.5
通讯作者:
L. Freysz
中科院分区:
文献类型:
--
作者:
P. Antony;J. Kanfer;L. Freysz
Earlier studies showed that treatment of LA-N-1 cells with TPA, a tumoral promoter, leads to the stimulation of a G protein-regulated phospholipase D (PLD) in the nuclei. Now we demonstrate that retinoic acid, a cellular differentiation inducing agent, activates a nuclear oleate-dependent PLD in LA-N-1 cells. Treatment of the nuclei with retinoic acid induces the breakdown of phosphatidylcholine (PtdCho). Our results indicate that PLD is regulated differentially depending on the nature of the stimulatory agent. These results strongly suggest the existence of two nuclear PLD isoforms in LA-N-1 nuclei that hydrolyze PtdCho.