Silencing of CXCR4 inhibits the proliferation, adhesion, chemotaxis and invasion of salivary gland mucoepidermoid carcinoma Mc3 cells in vitro.

Abstract:

:Mucoepidermoid carcinoma is the most common malignant tumor in salivary glands and high-grade mucoepidermoid carcinoma is often accompanied with poor prognosis. Many recent research works demonstrated that stromal cell-derived factor-1 (SDF-1) and its receptor CXC chemokine receptor-4 (CXCR4) interaction was critical for metastasis of various cancers. In this study, the immunoexpression of CXCR4 in human salivary gland mucoepidermoid carcinoma in different grades was detected by immunohistochemical analysis and the expression of CXCR4 and its ligand SDF-1 in mucoepidermoid carcinoma MEC-1 cell line and its highly metastatic clone Mc3 was examined by RT-PCR, flow cytometry and immunocytochemical analysis. It was found that CXCR4 was over-expressed in Mc3 cell line and SDF-1 was expressed in both cell lines at a nearly equal level. We further constructed CXCR4-shRNA expression vector to stably transfect Mc3 cells. We found that silencing of endogenous CXCR4 gene expression in Mc3 cells resulted in inhibition of the proliferation, adhesion, chemotaxis and invasion of Mc3 cells in vitro. This study implies that CXCR4 molecule is a potential factor controlling the proliferation and metastasis of Mc3 cells.

journal_name

Oral Oncol

journal_title

Oral oncology

authors

Wen DS,Zhu XL,Guan SM,Wu YM,Yu LL,Wu JZ

doi

10.1016/j.oraloncology.2007.06.016

subject

Has Abstract

pub_date

2008-06-01 00:00:00

pages

545-54

issue

6

eissn

1368-8375

issn

1879-0593

pii

S1368-8375(07)00184-4

journal_volume

44

pub_type

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