E-selectin modulates the malignant properties of T84 colon carcinoma cells

被引:19
作者
Flugy, AM
D'Amato, M
Russo, D
Di Bella, MA
Alaimo, G
Kohn, EC
De Leo, G
Alessandro, R [1 ]
机构
[1] Univ Palermo, Dept Biopathol & Biomed Methodol, Sect Biol & Genet, Palermo, Italy
[2] NCI, Mol Signalling Sect, Pathol Lab, Bethesda, MD 20892 USA
关键词
E-selectin signaling; metastasis; colon carcinoma; tumor cells; endothelial cells;
D O I
10.1016/S0006-291X(02)00337-6
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The extravasation of metastatic cells is regulated by molecular events involving the initial adhesion of tumor cells to the endothelium and subsequently the migration of cells in the host connective tissue. E-selectin on endothelial cells and sialyl Lewis X carbohydrate component on tumor cells are mainly involved in the adhesion of colon carcinoma cells to the endothelium of target organ. Interaction of T84 colon cancer cells to purified E-selectin in vitro caused an increase in the tyrosine phosphorylation of a number of proteins as well as the modulation of cellular properties correlated to the metastatic phenotype. Specifically, E-selectin-stimulated actin reorganization, increased collagenase secretion, and induced cell migration. Treatment of T84 cells with herbimycin A inhibited cell adhesion as well as selectin-induced increase of cell migration, and cytoskeleton assembly. Our data demonstrate that binding of cancer cells to E-selectin starts signal transduction pathways which may affect the tumor metastatic abilities. (C) 2002 Elsevier Science (USA). All rights reserved.
引用
收藏
页码:1099 / 1106
页数:8
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