RESUMO
Objective To explore the expression,role and mechanism of miR-375 in prostate cancer (PCa) cells.Methods PCa cells were cultured and transfected with plasmid,the migration and invasion of PCa were detected by Transwell;the expression of miR-375 and KLF4 mRNA were detected by qPCR;the expression of KLF4 were detect by Western blot;the potential target genes of miR-375 were analyzed by bioinformatics and verified by dual luciferase report.Results The expression of miR-375 were significantly up-regulated in the PCa;Inhibited the expression of miR-375 could significantly inhibit the migration and invasion of PCa cells.KLF4 was the potential target genes of miR-375,which verified through bioinformatics analysis and dual luciferase report.The expression of KLF4 were significantly down-regulated in the PCa.Inhibited the expression of miR-375 could significantly up-regulated the expression of KLF4.Inhibited the KLF4 expression was able to reverse the suppressive effect miR-375 has on the migration and invasion of PCa cells.Conclusion miR-375 promotes the migration and invasion of PCa via inhibiting the expression of KLF4 and play the oncogene role.MiR-375 can be used as therapeutic targets for PCa,and provide a new direction for the treatment of PCa.
RESUMO
Objective To investigate the effect of Biling Zhidai Tablets(BZT) on monocyte chemotactic protein-1 (MCP-1), intercellular adhesion molecule-1 (ICAM-1)and tumor necrosis factor-alpha(TNF-α)levels as well as hemorheology of rats with sequela of pelvic inflammatory diseases(SPID). Methods One hundred Wistar rats were randomly divided into normal control group , sham-operation group , model group , BZT group(0.54 g·kg-1·d-1)and Fuke Baidai Tablets group(0.225 g·kg-1·d-1), 20 rats in each group . The rats of the model group, BZT group and Fuke Baidai Tablets group were given mechanical damage plus injection of mixed bacteria to induce SPID. After modeling for 2 weeks, the latter three groups were given intragastric administration of the medicine for 21 days. The uterine swelling rate, the serum levels of MCP-1, ICAM-1, TNF-α as well as hemorheological indexes of rats in various groups were detected. Results The uterine swelling rate in BZT group and Fuke Baidai Tablets group was significantly decreased as compared with that of the model group, and the uterine swelling inhibition rate of BZT group was higher than that of Fuke Baidai Tablets group (P<0.01). The levels of MCP-1, ICAM-1 and TNF-α of BZT group and Fuke Baidai Tablets group were significantly decreased as compared with those of the model group, and the effect of BZT group was better than t hat of Fuke Baidai Tablets group, the differences being statistically significant(P<0.05or P<0.01). The indexes of hemorheology in BZT group were significant improved as compared with Fuke Baidai Tablets group, and the improvement in BZT group was superior to that in Fuke Baidai Tablets group (P<0.05 or P<0.01). Conclusion B ZT e xert certain therapeutic effect on treating SPID rats, and the mechanism is related with the relief of swelling of uterus, decrease of serum MCP-1, ICAM-1 and TNF-αlevels and improvement of the indexes of hemorheology.