Phospholipase D1: a key factor for the exocytotic machinery in neuroendocrine cells

Phospholipase D1: a key factor for the exocytotic machinery in neuroendocrine cells
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磷脂酶 D1:神经内分泌细胞胞吐机制的关键因素

DOI:
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发表时间:
2001
期刊:
影响因子:
11.4
通讯作者:
M. Bader
M. Bader
中科院分区:
生物学1区
文献类型:
--
作者:
N. Vitale;Anne‐Sophie Caumont;S. Chasserot;G. Du;Si Wu;V. A. Sciorra;A. Morris;M. Frohman;M. Bader

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磷脂酶D(PLD)已被提出介导细胞骨架重塑和囊泡运输沿着分泌途径。我们最近描述了ADP核糖基化因子调节的PLD在嗜铬细胞质膜上的激活,该细胞经历促分泌素刺激的胞吐作用。我们在这里表明,所涉及的同种型是PLD 1b,并且,使用单个细胞的真实的时间测定,PLD激活和胞吐密切相关。此外,过表达的PLD 1,而不是PLD 2,以磷脂酰肌醇4,5-二磷酸依赖的方式增加刺激的胞吐作用,而无催化活性的PLD 1抑制它。这些结果提供了第一个直接证据,表明PLD 1是神经内分泌细胞胞吐机制的重要组成部分。
Phospholipase D (PLD) has been proposed to mediate cytoskeletal remodeling and vesicular trafficking along the secretory pathway. We recently described the activation of an ADP ribosylation factor‐regulated PLD at the plasma membrane of chromaffin cells undergoing secretagogue‐stimulated exocytosis. We show here that the isoform involved is PLD1b, and, using a real‐time assay for individual cells, that PLD activation and exocytosis are closely correlated. Moreover, overexpressed PLD1, but not PLD2, increases stimulated exocytosis in a phosphatidylinositol 4,5‐bisphosphate‐dependent manner, whereas catalytically inactive PLD1 inhibits it. These results provide the first direct evidence that PLD1 is an important component of the exocytotic machinery in neuroendocrine cells.
DOI: --
发表时间: 1993
期刊: The Journal of biological chemistry
影响因子: --
作者:
Wick,PF;Senter,RA;Parsels,LA;Uhler,MD;Holz,RW
通讯作者: Holz,RW
DOI: 10.1073/pnas.88.23.10754
发表时间: 1991-12-01
影响因子: 11.1
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WIGHTMAN, RM;JANKOWSKI, JA;VIVEROS, OH
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PtdIns(4,5)P2 在胞吐膜融合中的作用。
DOI: 10.1042/bst0251137
发表时间: 1997
影响因子: 3.9
作者:
Martin,TF;Loyet,KM;Barry,VA;Kowalchyk,JA
通讯作者: Kowalchyk,JA