Abstract
Objective Explore the specificity of siRNA interference targeting malignant glioma U251 cells, INTα_vβ_3 expression of cell growth after the role. Method U251 cells were transfected with INT α_vβ_3 specific siRNA by lipofectamine(LipefectamineTM~(2000)). RT-PCR, immune ceils staining and Western blot were used to determine the expression of INTα_vβ_3. Cell proliferation after the detection of changes in interference was tested by MTT. Results INTα_vβ_3 specific siRNA shown to inhibit U251 cell proliferation. There were statistical significance between siRNA group, liposome group and the control group at different time points. Green INTα_vβ_3 expression was found in control group and lipesome groups, and reduced in siRNA group. Western blotting and RT-PCR results shown that the expression of integrin could be inhibited by α_vβ_3 transfection in the protein and mRNA level Conclusions Integrin-specific siRNA INTα_vβ_3 can inhibit the U251 glioma cell proliferation. Key words: siRNA; Integrin α_vβ_3; Glioma; 13251 cells
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