Effects of miR-101, miR-345 on HBV replication regulation and on the growth of liver cancer cells.

Abstract

The aim of the study was to investigate the effects of miRNA-101 and miRNA-345 on HBV replication and liver cancer cell growth. qPCR was performed to detect the expression of miRNA-101 and miRNA-345. The expression of HBV RNA was detected by PCR. The expression of HbsAg was detected using ELISA. BEL-7404 cell line proliferation was detected by MTT assay. The expression levels of miR-101 and miR-345 in BEL-7404 pSUPER.neo-miR-101 group and BEL-7404 pSUPER.neo-miR-345 group were significantly higher than those in BEL-7404 pSUPER.neo group (P<0.05). The expression levels of miR-101 and miR-345 in MHCC97-L pSUPER.neo-miR-101 group and MHCC97-L pSUPER.neo-miR-345 group were significantly higher than those in MHCC97-L pSUPER.neo group (P<0.05). The expression of HBV DNA in MHCC97-L pSUPER.neo-miR-101 group was significantly lower than that in MHCC97-L pSUPER.neo group (P<0.05), and the expression of HBV DNA in MHCC97-L pSUPER.neo-miR-345 group was significantly higher than that in MHCC97-L pSUPER.neo group (P<0.05). The expression of HbsAg in MHCC97-L pSUPER.neo-miR-101 group was significantly lower than that in MHCC97-L pSUPER.neo group (P<0.05), and the expression of HbsAg in MHCC97-L pSUPER.neo-miR-345 group was significantly higher than that in MHCC97-L pSUPER.neo group (P<0.05). There was a significant difference in terms of HbsAg expression between the MHCC97-L pSUPER.neo-miR-101 and MHCC97-L pSUPER.neo-miR-345 groups (P<0.05). The proliferation of BEL-7404 cells in the BEL-7404 pSUPER.neo-miR-101 group was significantly lower than that in the BEL-7404 pSUPER.neo group (P<0.05). The proliferation of BEL-7404 cells in the BEL-7404 pSUPER.neo-miR-345 group was significantly higher than that in the BEL-7404 pSUPER.neo group (P<0.05). The proliferation of BEL-7404 cells in BEL-7404 pSUPER.neo-miR-101 group was different from that in BEL-7404 pSUPER.neo-miR-345 group (P<0.05). miR-101 reduced the level of HBV replication, and inhibited the proliferation of liver cancer cells. miR-345 also upregulated the level of HBV replication, and promoted the proliferation of liver cancer cells.