Effect of salvianolic acid B on proliferation,migration,glycolysis and epithelial-mesenchymal transition of colorectal cancer cell HCT116 and its mechanism
Objective To investigate the effects of salvianolic acid B on the proliferation,migration,glycolysis,and epithelial-mesenchymal transition(EMT)of colon cancer cells HCT116 and the related mechanism.Methods The proliferation of HCT116 cells was evaluated by CCK-8 assay and colony formation assay with salvianolic acid B(25,50,and 100 μmol·L1).The migration ability of HCT116 cells was evaluated by wound healing assay with salvianolic acid B.The glycolysis and lactate levels of HCT116 cells were detected by kit assay.The effects of salvianolic acid B on the EMT-related proteins E-cadherin,N-cadherin,Vimentin,and Snail,the glycolysis-related proteins GLUT1 and LDHA,and the p-serine/threonine kinase(AKT)/nuclear factor kappa B(NF-κB)signaling pathway-related proteins AKT and p-p65 were analyzed by Western blotting.Results Compared with the control group,50 and 100 μmol·L-1 salvianolic acid B significantly inhibited the proliferation of HCT116 cells(P<0.01,0.001),100 μmol·L-1 salvianolic acid B significantly blocked the migration of HCT116 cells(P<0.001),50 and 100 μmol·L-1 salvianolic acid B significantly reduced the protein expression of GLUT1 and LDHA in HCT116 cells(P<0.01,0.001),and significantly reduced the consumption of glucose and lactate in HCT116 cells(P<0.01,0.001).50 and 100 μmol L-1 of salvianolic acid B treatment resulted in a significant increase in the protein expression of epithelial marker E-cadherin(P<0.01,0.001),while the expression of mesenchymal markers N-cadherin,Vimentin,and transcription factor Snail significantly decreased(P<0.01,0.001),50 and 100 μmol·L-1 of salvianolic acid B significantly reduced the phosphorylation levels of AKT and the subunit p65 of NF-κB(P<0.01,0.001).Conclusion Salvianolic acid B can significantly inhibit the proliferation and migration of colon cancer cells,effectively inhibit the EMT process and glycolysis,and may achieve this by inhibiting the AKT/NF-κB signaling pathway.