Document Detail

Down-regulation of MT1-MMP expression suppresses tumor cell invasion in metastatic human SW626 ovarian cancer cells.
MedLine Citation:
PMID:  16391876     Owner:  NLM     Status:  MEDLINE    
Membrane-type 1 matrix metalloproteinase (MT1-MMP/MMP-14) is a key enzyme involved in degradation of extracellular matrix (ECM) and various surface-associated proteins that control cell growth, differentiation and survival, plays crucial roles in molecular carcinogenesis, tumor cell growth, invasion, and angiogenesis. We tested the inhibitory effect of antisense MT1-MMP on the ability of metastatic human ovarian carcinoma cell line SW626 in proliferation and invasion. RT-PCR was used to amplify MT1-MMP cDNA fragments with two different restriction sites at its 5'-end. Antisense MT1-MMP cloned in eukaryotic expression vector pMMP14as was transfected into SW626 cells. MT1-MMP protein expression, activities of MMP-2 and MMP-9, changes of cell proliferation, and cell invasion ability were detected by Western blot, optimized gelatin zymography, MTT assay and matrigel in vitro invasion assay, respectively. After 48 h transfection, decreased expression of endogenous MT1-MMP protein was detected in pMMP14as-transfected SW626 cells and showed significantly lower proliferation level when compared with control cells. The activation of proMMP-2 was inhibited markedly, and the mean percentage of invasive cells was 63.30+/-5.80% in pMMP14as-transfected cells, which was less than that (97.60+/-7.50%) in control cells (P<0.05). Both cell proliferation and invasion in SW626 cells were inhibited effectively by antisense MT1-MMP transfection, suggesting that MT1-MMP may be a proper target molecule for anti-invasion therapy for human ovarian cancers.
Mingfu Wu; Gang Xu; Ling Xi; Junchen Wei; Anping Song; Zhiqiang Han; Jianfeng Zhou; Shixuan Wang; Tao Zhu; Arli Zhang; Yunping Lu; Ding Ma
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Oncology reports     Volume:  15     ISSN:  1021-335X     ISO Abbreviation:  Oncol. Rep.     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2006-01-04     Completed Date:  2006-06-01     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9422756     Medline TA:  Oncol Rep     Country:  Greece    
Other Details:
Languages:  eng     Pagination:  501-5     Citation Subset:  IM    
Cancer Biology Research Center, Tongji Hospital, Tongji Medical School, Huazhong University of Science and Technology, 1095 Jiefang Ave., Wuhan, Hubei 430030, P.R. China.
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MeSH Terms
Blotting, Western
Cell Proliferation
Matrix Metalloproteinases / metabolism*
Matrix Metalloproteinases, Membrane-Associated
Neoplasm Invasiveness / pathology*
Ovarian Neoplasms / enzymology*,  pathology*
Reverse Transcriptase Polymerase Chain Reaction
Reg. No./Substance:
EC 3.4.24.-/Matrix Metalloproteinases; EC 3.4.24.-/Matrix Metalloproteinases, Membrane-Associated

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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