Matrix metalloproteinase 11 depletion inhibits cell proliferation in gastric cancer cells.

Abstract

Our previous study has shown that matrix metalloproteinase 11 (MMP11) is highly expressed in tumor cell lines and primary tumor of gastric cancer (GC). In order to reveal the correlation between expression of MMP11 and biological features of GC cell, we have constructed the recombinant plasmids producing hairpin small interfering RNA (siRNA) to target MMP11 mRNA using a vector-based RNA interference technology. Stable transfection of recombinants into GC cell line BGC823 specifically depleted the mRNA and protein of MMP11 as demonstrated by RT-PCR and Western blotting analysis. The siRNA-treated cells exhibited significantly decreased growth ability compared with mock transfectants and parental BGC823 cells. Furthermore, colony formation of MMP11 deficient cells was dramatically inhibited in soft agar and tumorigenicity was reduced in nude mice, respectively. These results provide new insights into the function of MMP11 and suggest that MMP11 may play an important role in the control of cell proliferation and tumor development in GC.

• Authors: Hua Deng, Rui-Fang Guo, Wen-Mei Li, Min Zhao, You-Yong Lu
• Journal: Biochemical and biophysical research communications (Biochem Biophys Res Commun) Vol. 326 Issue 2 Pg. 274-81 (Jan 14 2005) ISSN: 0006-291X [Print] United States
• PMID: 15582574 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• RNA, Messenger
• Matrix Metalloproteinase 11
• Metalloendopeptidases

Topics

• Animals
• Base Sequence
• Cell Line, Tumor
• Cell Proliferation
• Cell Transformation, Neoplastic
• Down-Regulation
• Humans
• Matrix Metalloproteinase 11
• Metalloendopeptidases (chemistry, deficiency, genetics, metabolism)
• Mice
• Molecular Sequence Data
• Plasmids (genetics)
• RNA Interference
• RNA, Messenger (genetics, metabolism)
• Stomach Neoplasms (enzymology, genetics, pathology)