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BAG-1 accelerates cell motility of human gastric cancer cells.

Abstract：

:BAG-1 is a Hsp70/Hsc70-binding protein that interacts with Bcl-2, Raf-1, steroid hormone receptors, Siah-1, and hepatocyte growth factor (HGF) receptors, implying multiple functions for the BAG-1 protein. Here, we provide evidence that gene transfer-mediated overexpression of BAG-1 markedly enhances the motility of human gastric cancer cells. Two independent in vitro migration assays showed that the BAG-1-expressing MKN74 cells exhibited more active migration compared with control transfectants or parent MKN74 cells. In MKN74 cells, the overexpression of BAG-1 affected neither cell adhesion capability nor migration responses to HGF. The promotive effect of BAG-1 on cell migration was similarly observed in transfectants of another human gastric cancer MKN45 cell line. In BAG-1 transfected gastric cancer MKN74 cells, BAG-1 colocalized with cytokeratin as well as actin filaments, and was concentrated at membrane ruffles induced by lysophosphatidic acid (LPA). Taken together, these studies demonstrate that BAG-1 has a novel function as promoter of cell migration in human gastric cancer cells, possibly through cooperation with cytoskeletal proteins.

journal_name

Oncogene

journal_title

Oncogene

authors

Naishiro Y,Adachi M,Okuda H,Yawata A,Mitaka T,Takayama S,Reed JC,Hinoda Y,Imai K

doi

10.1038/sj.onc.1202661

subject

Has Abstract

pub_date

1999-05-27 00:00:00

pages

3244-51

issue

21

eissn

0950-9232

issn

1476-5594

journal_volume

18

pub_type

杂志文章

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