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RNAi targeting CXCR4 inhibits tumor growth through inducing cell cycle arrest and apoptosis.

ABSTRACT: CXC chemokine receptor 4 (CXCR4) is involved in many human malignant tumors and plays an important role in tumor growth and metastasis. To explore the effects of CXCR4 expression on the malignant cells of oral squamous cell carcinoma (OSCC), Tca8113 and SCC-9 cell lines, as well as their xenograft models, of nude mice were used to detect cancer cell proliferation alteration. This study also examined the corresponding molecular mechanism after CXCR4 knockdown using a recombinant lentiviral vector expressing small interference RNA (siRNA) for CXCR4. RNA interference-mediated knockdown of CXCR4 in highly aggressive (Tca8113 and SCC-9) tumor cells significantly inhibited the proliferation of the two cell lines in vitro and in vivo. The expression levels of >1,500 genes involved in cell cycle, apoptosis, and multiple signaling pathways were also altered. These results provide new evidence of CXCR4 as a promising tumor gene therapeutic target.

SUBMITTER: Yu T 

PROVIDER: S-EPMC3277223 | biostudies-literature | 2012 Feb

REPOSITORIES: biostudies-literature

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RNAi targeting CXCR4 inhibits tumor growth through inducing cell cycle arrest and apoptosis.

Yu Tao T   Wu Yingying Y   Huang Yi Y   Yan Chaoran C   Liu Ying Y   Wang Zongsheng Z   Wang Xiaoyi X   Wen Yuming Y   Wang Changmei C   Li Longjiang L  

Molecular therapy : the journal of the American Society of Gene Therapy 20111122 2

CXC chemokine receptor 4 (CXCR4) is involved in many human malignant tumors and plays an important role in tumor growth and metastasis. To explore the effects of CXCR4 expression on the malignant cells of oral squamous cell carcinoma (OSCC), Tca8113 and SCC-9 cell lines, as well as their xenograft models, of nude mice were used to detect cancer cell proliferation alteration. This study also examined the corresponding molecular mechanism after CXCR4 knockdown using a recombinant lentiviral vector  ...[more]

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