الملخص
Purpose To investigate the effect of CD147 on the proliferation,invasion and migration of cervical cancer cells and its potential molecular mechanism.Methods The expres-sion data of BSG gene(encoding CD147 protein)in cervical cancer samples were downloaded from UCSC database,and the prognosis of different groups of samples was evaluated by Log-rank test.Western blot was used to detect CD147 expression in the Siha and Hela and H8 cells.The expression of CD147 was downregulated by the lentivirus transfection into Hela cells and its transfection efficiency was verified.Western blot was used to detect the expression of p-Akt,p-mTOR,ACC1,FASN,E-cad-herin and N-cadherin in each group.The content of fatty acids in the cells was detected by BODIPY staining and fatty acid kit.Cell proliferation,invasion and migration were detected by CCK-8,plate cloning and Transwell assay.The cell proliferation,in-vasion and migration ability were detected by plate cloning ex-periment and Transwell test.Results The expression of CD147 in cervical cancer tissues was higher than that in normal cervical tissues(P＜0.01).Patients with overexpression of CD147 had poor prognosis.Western blot results showed that compared with H8 cells,the expression of CD147 protein in Siha and Hela cells was increased(P=0.011).After down-regulation of CD147,the protein expression of CD147,ACC1 and FASN in the sh-CD147 group was decreased compared with those in the Hela group(P＜0.001).BODIPY fluorescence staining was weak-ened and fatty acid content was decreased(P＜0.001).The a-bility of cell colony formation,invasion and migration was de-creased.The expression of E-cadherin protein in sh-CD147 group was increased,and the expression of N-cadherin,p-Akt and p-mTOR was decreased.Compared to sh-CD147,after treatment with Akt agonist SC-79(sh-CD147-SC79),the ex-pression of p-Akt,p-mTOR,ACC1,FASN,N-cadherin in cells was increased,and the expression of E-cadherin was decreased,and the results of lipid staining and fatty acid content were con-sistent with the expression of key enzymes(P＜0.01),and the cell proliferation,invasion and migration ability were significant-ly enhanced.Conclusion CD147 through Akt/mTOR signaling pathways regulating the fatty acid synthesis promotes cervical cancer cell proliferation,invasion and migration.