Metastatic effect of LY-6K gene in breast cancer cells.

Abstract:

:The over-expression of urokinase receptor in breast cancer cells results in increased tumor invasion, growth and metastasis. As LY-6K belongs to the Ly6/uPAR superfamily, we assessed the association of LY-6K with metastasis in breast cancer cell lines and how the LY-6K gene mediates cancer cell metastasis. The migration ability of cells in which expression of LY-6K gene is up- or down-regulated was investigated by transfecting LY-6K naked DNA and treating LY-6K siRNA. Assays of wound healing, migration and invasion were performed. The assays demonstrated that cell migration significantly increased when LY-6K gene is over-expressed or LY-6K protein is abnormally expressed in breast cancer cells. In addition, LY-6K caused cancer cell metastasis and it is linked to the Ras/ERK signaling pathway. Our results suggest that LY-6K meaningfully participates in breast cancer cell metastasis by influencing cell migration and invasion through the Ras/ERK pathway.

journal_name

Int J Oncol

authors

Choi SH,Kong HK,Park SY,Park JH

doi

10.3892/ijo_00000371

subject

Has Abstract

pub_date

2009-09-01 00:00:00

pages

601-7

issue

3

eissn

1019-6439

issn

1791-2423

journal_volume

35

pub_type

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