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- Title
Inhibition of tumor growth and metastasis of human breast cancer cells transfected with tissue inhibitor of metalloproteinase 4.
- Authors
Wang, Mingsheng; Liu, Yiliang E; Greene, John; Sheng, Shijie; Fuchs, Alexander; Rosen, Eliot M; Shi, Y Eric
- Abstract
We recently identified, cloned, and characterized a novel human tissue inhibitor of metalloproteinases-4, TIMP-4 (Greene et al., 1996). To determine if TIMP-4 can modulate the in vivo growth of human breast cancers, we transfected a full-length TIMP-4 cDNA into MDA-MB-435 human breast cancer cells and studied the orthotopic growth of TIMP-4-transfected (TIMP4-435) versus control (neo-435) clones in the mammary fat pad of athymic nude mice. TIMP4-435 clones expressed TIMP-4 mRNA and produced anti-metalloproteinase (MMP) activity, while neo-435 clones did not express TIMP-4 mRNA or produce detectable anti-MMP activity. Overexpression of TIMP-4 inhibited the invasion potential of the cells in the in vitro invasion assay. When injected orthotopically into nude mice, TIMP-4 transfectants were significantly inhibited in tumor growth by 4 – 10-fold in primary tumor volumes; and in an axillary lymph node and lung metastasis as compared with controls. These results suggest the therapeutic potential of TIMP-4 in treating cancer malignant progression
- Subjects
TUMOR growth; METASTASIS; METALLOPROTEINASES
- Publication
Oncogene, 1997, Vol 14, Issue 23, p2767
- ISSN
0950-9232
- Publication type
Article
- DOI
10.1038/sj.onc.1201245