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Chinese Journal of Cancer Biotherapy ; (6): 568-573, 2018.
Article in Chinese | WPRIM | ID: wpr-821056

ABSTRACT

@# Objective: To explore the effect of shRNA interfering BAMBI (bone morphogenetic protein and activin membrane bound inhibitor) on the proliferation, apoptosis, invasion and migration of human colon cancer SW480 cells and the possible mechanisms. Methods: After successful transfection with sh-BAMBI in SW480 cells, the mRNA and protein epxressions of BAMBI were detected by qRT-PCR and Western blotting, respectively. Cell proliferation was measured by MTT; apoptosis was tested by Hoechst33258 staining; cell invasion was detected by transwell assay; and cell migration was measured by wound healing assay. The expressions of TGF-β/ Smad/2 signaling pathway related proteins were detected by Western blotting. Results: The mRNA and protein levels of BAMBI in shBAMBI group were lower than those of control group (P<0.05). Compared with control group, cell proliferation in sh-BAMBI group was obviously decreased (P<0.05), while apoptosis was obviously increased (P<0.01); in the meanwhile, cell invasion and migration in sh-BAMBI group were significantly reduced (P<0.05). In addition, the protein level of TGF-β and the ratio of p-Smad/2/ Smad/2 in shBAMBI group were significantly higher than those in control group (P<0.05). Conclusion: Interference of BAMBI by shRNA inhibits proliferation, invasion and migration but induces apoptosis of human colon cancer SW480 cells and activates TGF-β/Smad/2 pathway.

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