二氢杨梅素对子宫内膜癌细胞肿瘤生物学特性的影响机制研究OACSTPCD

Objective To explore the effects of dihydromyricetin on the proliferation,apoptosis,and invasion of endometrial cancer(EC)cells and its possible mechanisms.Methods Ishikawa cells in the logarithmic growth phase were taken and divided into the control group,20 µmol/L dihydromyricetin intervention group,40 µmol/L dihydromyricetin intervention group,and 80 µmol/L dihydromyricetin intervention group,which were treated with different final concentrations of dihydromyricetin(0 µmol/L,20 µmol/L,40 µmol/L,80 µmol/L).Then,CCK-8 assay and flow cytometry were used to detect the effects of dihydromyricetin on the cell proliferation and apoptosis.Transwell experiment was used to detect the effect of dihydromyricetin on the cell invasion.qRT-PCR and Western blot were used to detect the effects of dihydromyricetin on the cell expression of miR-21 and PTEN.Results Compared with the control group,the cell proliferation inhibition rate and apoptosis rate in the dihydromyricetin intervention group were significantly increased(P<0.05),and gradually increased with the increase of dihydromyricetin concentration(P<0.05).Compared with the control group,the numbers of migration and invasion cells in the dihydromyricetin intervention group were significantly decreased(P<0.05),and gradually decreased with the increase of dihydromyricetin concentration(P<0.05).Compared with the control group,the cell expression of miR-21 in the dihydromyricetin intervention group was significantly decreased(P<0.05),and gradually decreased with the increase of dihydromyricetin concentration(P<0.05),the expression levels of PTEN mRNA and protein were significantly increased(P<0.05),and gradually increased with the increase of dihydromyricetin concentration(P<0.05).Conclusion Dihydromyricetin can inhibit the growth and metastasis of EC cells,and the inhibitory effect is positively correlated with its concentration.The mechanism may be related to the effect of dihydromyricetin on the miR-21/PTEN signaling pathway of EC cells.