The GOLPH3 pathway regulates Golgi shape and function and is activated by DNA damage

被引：37

作者：

Buschman, Matthew D. ^{[1
]}

Xing, Mengke ^{[1
]}

Field, Seth J. ^{[1
]}

机构：

[1] Univ Calif San Diego, Div Endocrinol & Metab, Dept Med, La Jolla, CA 92093 USA

来源：

FRONTIERS IN NEUROSCIENCE | 2015年 / 9卷

关键词：

Golgi; phosphatidylinosito1-4-phosphate; GOLPH3; MY018A; secretory trafficking; DNA damage; cancer; neurodegenerative disease; PHOSPHATIDYLINOSITOL; 4-PHOSPHATE; LIPID PHOSPHATASE; CELL-MIGRATION; BREAST-CANCER; SECRETION; COMPLEX; ACTIN; TRAFFICKING; MORPHOLOGY; BINDING;

D O I：

10.3389/fnins.2015.00362

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The Golgi protein GOLPH3 binds to PtdIns(4)P and MY018A, linking the Golgi to the actin cytoskeleton. The GOLPH3 pathway is essential for vesicular trafficking from the Golgi to the plasma membrane. A side effect of GOLPH3-dependent trafficking is to generate the extended ribbon shape of the Golgi. Perturbation of the pathway results in changes to both Golgi morphology and secretion, with functional consequences for the cell. The cellular response to DNA damage provides an example of GOLPH3-mediated regulation of the Golgi. Upon DNA damage, DNA-PK phosphorylation of GOLPH3 increases binding to MY018A, activating the GOLPH3 pathway, which consequently results in Golgi fragmentation, reduced trafficking, and enhanced cell survival. The PtdIns(4)P/GOLPH3/MY018A/F-actin pathway provides new insight into the relationship between Golgi morphology and function, and their regulation.

引用

页数：6

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