Biological effect of human bone marrow mesenchymal stem cells on hepatocellular carcinoma cells / 中国组织工程研究

ABSTRACT

BACKGROUND:The metastatic potential of hepatocelular carcinoma cels is key factor influencing patient’s prognosis. To observe the effect of human bone marrow mesenchymal stem cels on metastasis of hepatocelular carcinoma is of great significance for improving the lifetime of hepatocelular carcinoma patients. OBJECTIVE:To explore the biological effect of human bone marrow mesenchymal stem cels on hepatocelular carcinoma cels with different metastatic potentials. METHODS:Human bone marrow mesenchymal stem cels and hepatocelular carcinoma cel suspension with high and low metastatic potentials were respectively injected into the Transwel chamber, and after 36 hours of co-culture, ELISA method was used to detect the absorbance value as wel as cel counting method was used to observe the changes in the invasion ability of hepatocelular carcinoma cels. The effects of human bone marrow mesenchymal stem cels on the proliferation of hepatocelular carcinoma cel suspension with high and low metastatic potentials were determined using cel counting kit-8. PCR method was adopted to measure the expression of osteopontin, bone specific sialoproteins, integration (alpha V), transforming growth factor beta 1 and programmed cel death protein 5. RESULTS AND CONCLUSION:(1) The number of migrated hepatocelular carcinoma cels was significantly lower in the co-culture group than the single culture group, and based on the semi-quantitative detection of invasion ability, the absorbance value of the co-culture group was significantly lower than that in the single culture group (P 0.05). In the co-culture group with low metastatic potential, the expression of osteopontin, bone specific sialoproteins, and integration (alpha V) were declined remarkably (P 0.05). However, in the co-culture group with low metastatic potential, the expression of transforming growth factor beta 1 and programmed cel death protein 5 was both increased dramaticaly (P < 0.05). These findings suggest that the human bone marrow mesenchymal stem cels reduce the invasion ability of hepatocelular carcinoma cels, and enhance their ability of proliferation.