雌二醇通過ERα抑制miR-16表達(dá)并促進(jìn)蛻膜間充質(zhì)干細(xì)胞生長
[Abstract]:Aim: to study the effect of estradiol (E2) on the (MSCs) activity of placental decidual derived mesenchymal stem cells by regulating the expression of tiny RNA-16 (miR-16). Methods: the concentrations of E2 in peripheral blood of normal pregnant women and patients with severe preeclampsia (PE) were detected respectively. The effect of E2 at different concentrations on MSCs activity was analyzed by CCK-8 method. The effect of MSCs treated with different concentrations of E2 on miR-16 expression was analyzed by Real-time PCR. To explore the receptors through which E2 regulates the expression of miR-16. Results: compared with normal pregnant women, the concentration of E _ 2 in peripheral blood of patients with severe PE was significantly lower than that of normal pregnant women (P0.01). After treated with MSCs for 48 h, the activity of MSCs increased significantly (P0.05). The expression level of miR-16 was down-regulated (P0.05), but the expression of miR-16 was down-regulated with time after MSCs was treated with 10 nmol/L E2 (0 h, 3 h, 6 h, 12 h and 24 h). The activity of miR-16, cells pretransfected before E2 treatment was significantly reversed. After pretreatment with estrogen receptor antagonist ICI 182780 and tamoxifen at 6 h before E2 treatment, E2 had no inhibitory effect on miR-16. After MSCs was treated with estrogen receptor 偽 (ER 偽) agonist propylpyrazoltriol (PPT) and ER 尾 receptor agonist diarylpropionitrile (DPN), only PPT could significantly inhibit miR-16 expression. Conclusion: estradiol may inhibit the expression of miR-16 through ER 偽 and promote the growth of decidua MSCs.
【作者單位】: 南京大學(xué)醫(yī)學(xué)院附屬鼓樓醫(yī)院;
【基金】:國家自然科學(xué)基金資助項(xiàng)目(No.81401223)
【分類號(hào)】:R714.244
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