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2003 OCT 2 - (NewsRx.com & NewsRx.net) -- "Hepatocyte growth factor/scatter factor (HGF/SF) is a cytokine primarily produced by stromal fibroblasts and is a known angiogenic and invasion-inducing factor. It is increased in patients with breast cancer. This study examined the effect of NK4, a newly described HGF/SF antagonist, on HGF/SF-promoted growth of a human breast cancer," researchers in Wales report.
"Both in vitro (invasion and migration assays) and in vivo (murine tumor model) methods were used to ascertain the effect of NK4 on HGF/SF from two sources: human fibroblast-derived HGF/SF and recombinant HGF/SF. In the in vitro invasion assay and migration assay, both HGF/SF and human fibroblasts, which secrete bioactive HGF/SF, increased the invasiveness and migration of the breast cancer cells (MDA MB 231)," commented T.A. Martin and colleagues, University of Wales College of Medicine, Metastasis Research Group.
"NK4 significantly reduced this invasiveness and motility. In the animal model, tumor volume and weight was significantly reduced with addition of NK4. It also suppressed HGF/SF-induced growth and markedly retarded tumor growth induced by fibroblasts (MRC5) secreting bioactive HGF/SF."
"Tumor angiogenesis was assessed by ...
Source: HighBeam Research, The hepatocyte growth factor antagonist NK4 reduces breast...