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  • Title: Study on the effect of integrin ανβ6 on the proliferation and apoptosis of thyroid carcinoma cells.
    Author: Tian Z, Xi H, Wang X, Feng S, Jia G.
    Journal: J BUON; 2017; 22(3):704-708. PubMed ID: 28730778.
    Abstract:
    PURPOSE: To study the effect of integrin αvβ6 on the proliferation and apoptosis of thyroid carcinoma cells. METHODS: The experiment was conducted on 3 groups : the control group, the positive observation group (in which the ανβ6 on the surface of the thyroid carcinoma cell line SW579 was blocked by monoclonal antibody 10D5) and the negative observation group (in which the ανβ6 was dealt with the negative placebo of 10D5-the IgG2a). Cell proliferation was detected by MTT assay, apoptosis by flow cytometry and the protein levels in Caspase-3, CyclinB1 and Bcl-xl as well as the protein levels in ERK, p-ERK, JNK, p-JNK, p38 and p-p38 were detected by Western blot. RESULTS: The cell survival rates of the control group and the negative observation group were prominently higher than those of the positive observation group, following decrease in the apoptosis rates, and the differences were statistically significant (p<0.05). The protein levels in CyclinB1 and Bcl-x1 of the control group and the negative observation group were prominently higher than those of the positive observation group, whereas the levels in Caspase-3 were decreased; the differences were statistically significant (p<0.05). The protein levels in p-ERK, p-JNK and p-p38 of the control group and the negative observation group were prominently higher than those of the positive observation group, while the protein levels of ERK, JNK and p38 showed no difference. CONCLUSION: Integrin ανβ6 can mediate the MAPK signal pathway of the cells and regulate the expression of CyclinB1 and the apoptosis-related proteins like Bcl-x1 and Caspase-2, thus affecting the process of the proliferation and apoptosis of thyroid carcinoma cells.
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