Inhibitory effect of MMP-7 antisense oligodeoxynucleotide on proliferation of human pneumonic adenocarcinoma cell line A549
- VernacularTitle:MMP-7反义寡核苷酸抑制肺腺癌A549细胞体外增殖活性的实验研究
- Author:
Bo YANG
;
Zhixin WANG
- Publication Type:Journal Article
- Keywords:
matrilysin,antisense oligodeoxynucleotide,lung adenocarcinoma cell line A549
- From:Journal of Third Military Medical University
1983;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the possibility of inhibiting the malignant proliferation of tumor cells in vitro through down-regulating the expression of MMP-7 by antisense gene technology. Methods A Phosphorothioate antisense oligodeoxynucleotide (ASODN) and scrambled oligodeoxynucleotide (SCODN) against MMP-7 were respectively transfected into A549 cells mediated by liposome. The expression of MMP-7 and cell proliferation in the cells were respectively examined by immunohistochemical assay and MTT. Flow cytometry was used to detect the cell cycles. Results After A549 cells were transfected with MMP-7 ASODN, the cell number was decreased. MTT method indicated that the proliferation of A549 cells was inhibited by MMP-7 ASODN at different concentrations, with the inhibition reaching the peak at 48 h. ASODN transfection downregulated the expression levels of MMP-7 protein, and inhibited the transition period of G_ 0 /G_ 1 phase to S phase. Conclusion The artificial MMP-7 ASODN can specifically inhibit the expression of MMP-7 protein and regulate cell cycle and cell proliferation in A549 cells.
