期刊
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
卷 358, 期 1, 页码 117-123出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bbrc.2007.04.098
关键词
Met; colon cancer; HGF; liver metastasis; NK4; tumor angiogenesis
NK4, originally prepared as a competitive antagonist for hepatocyte growth factor (HGF), is a bifunctional molecule that acts as an HGF-antagonist and angiogenesis inhibitor. When the expression plasmid for NK4 gene was administered into mice by hydrodynamicsbased delivery, the repetitive increase in the plasma NK4 protein level was achieved by repetitive administration of NK4 gene. Mice were subcutaneously implanted with colon cancer cells and weekly given with the NK4 plasmid. The repetitive delivery and expression of NK4 gene inhibited angiogenesis and invasiveness of colon cancer cells in subcutaneous tumor tissue and this was associated with suppression of primary tumor growth. By fifty days after tumor implantation, cancer cells naturally metastasized to the liver, whereas NK4 gene expression potently inhibited liver metastasis. Inhibition of the HGF-Met receptor pathway and tumor angiogenesis by NK4 gene expression has potential therapeutic value toward inhibition of invasion, growth, and metastasis of colon cancer. (c) 2007 Elsevier Inc. All rights reserved.
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