Objective: To study the inhibitory effect of Radix Salviae Miltiorrhizae (RSM) on adhesive and invasive ability of SMMC-7721 liver cancer cells, and on the metastasis and recurrence on post-hepatectomy liver cancer in nude mice.
Methods: Effect of RSM on SMMC-7721 cell membrane intercellular adhesive molecule-1 (ICAM-1) expression was observed by immunofluorescence flow cytometry; effect on invasive ability and of SMMC-7721 cell and the detachment of which attached to fibronectin (FN) by cell migration experiment; effcet on adhesion of SMMC-7721 cell with FN by MTT method and effect on adhesion between 7721-7721, 7721-lymphocyte and 7721-endothelial cell by cell adhesion experiment. LCI-D20 human liver cancer metastasis model, after hepatectomy, was used to observe the effect of RSM on recurrence and metastasis of liver carcinoma in nude mice.
Results: ICAM-1 expression in SMMC-7721 cells incubated with RSM was significantly lower than that in cells did not treated with RSM. RSM could inhibit the invasive ability of SMMC-7721 cell and made the cells already attached to FN exfoliated. It could also inhibit the adhesion of 7721-7721, 7721-lymphocyte and 7721-endothelial cell. And RSM showed preventive and therapeutic effect on intrahepatic and remote metastasis/recurrence of early and late human post-hepatectomy liver cacer in nude mice.
Conclusion: RSM could inhibit the invasion and adhesion of SMMC-7721 cell and could also prevent and inhibit metastasis and recurrence of human liver cancer after hepatectomy in nude mice.