[Objectives]To observe the effects of Cigu Xiaozhi Formula on miR-378a-3p expression and Hh signaling pathway in TGF-β1 induced and activated LX2 cells.[Methods]Cells were divided into control group,induction group,d...[Objectives]To observe the effects of Cigu Xiaozhi Formula on miR-378a-3p expression and Hh signaling pathway in TGF-β1 induced and activated LX2 cells.[Methods]Cells were divided into control group,induction group,drug-containing serum group,miR-378a-3p inhibitor group,and miR inhibitor NC group.CCK-8 method was used to detect the cell viability of each group,and flow cytometry was used to detect the apoptosis rate of each group.RT-qPCR was used to detect the expression of miR-378a-3p in each group s cells,and RT-qPCR and Western blot were used to detect mRNA and protein expression of Shh,Gli1,Gli2,Col-I,andα-SMA in each group s cells.[Results]Compared with the control group,the cell viability and expression of Shh,Gli1,Gli2,Col-I,andα-SMA mRNA and protein in induction group increased(P<0.01),while the expression of miR-378a-3p decreased(P<0.01).Compared with the induction group,the cell viability and expression of Shh,Gli1,Gli2,Col-I,α-SMA mRNA andα-SMA and Gli2 protein decreased in drug-containing serum group(P<0.05),while cell apoptosis rate and miR-378a-3p expression increased(P<0.01).In miR-378a-3p inhibitor group,cell viability and the expression of Shh,Gli1,Gli2,Col-I,α-SMA mRNA and Gli1,Gli2,α-SMA protein increased(P<0.05,P<0.01),while the apoptosis rate and miR-378a-3p expression decreased(P<0.05,P<0.01).[Conclusions]Cigu Xiaozhi Formula containing serum can upregulate miR-378a-3p expression and downregulate the expression of Gli2 andα-SMA in TGF-β1 induced LX2 cells,thereby inhibiting the activation of LX2 cells and exerting the effects of anti liver fibrosis.展开更多
目的探讨miR-378在氧-糖剥夺(OGD)致小鼠成神经瘤N2A细胞缺血损伤中的作用及其可能分子机制研究。方法离体培养N2A细胞,采用3 h OGD/24 h复糖复氧模拟缺血/再灌细胞模型,3-(4,5-二甲基噻唑)-2,5-二苯基四氮唑溴盐(MTT)比色法检测N2A细...目的探讨miR-378在氧-糖剥夺(OGD)致小鼠成神经瘤N2A细胞缺血损伤中的作用及其可能分子机制研究。方法离体培养N2A细胞,采用3 h OGD/24 h复糖复氧模拟缺血/再灌细胞模型,3-(4,5-二甲基噻唑)-2,5-二苯基四氮唑溴盐(MTT)比色法检测N2A细胞生存率,蛋白印迹(Western blot)检测caspase-3蛋白表达,实时定量RT-PCR检测miR-378和caspase-3 mRNA表达,荧光素酶报告基因验证miR-378对caspase-3 mRNA 3'非翻译区(UTR)的直接调控作用。结果 miR-378在N2A细胞内表达水平,随着3 h OGD复糖复氧时间的增加,而显著降低(P<0.05,n=5);在3 h OGD/24 h复糖复氧致N2A细胞缺血损伤中,上调或下调miR-378的表达水平可显著提高或降低N2A细胞生存率(P<0.05,n=6);而在非OGD条件下,miR-378表达水平改变对N2A细胞生存率则无明显影响;同样,在3 h OGD/24 h复糖复氧条件下,miR-378表达水平的改变可显著影响caspase-3蛋白表达(P<0.05,n=3)而非caspase-3 mRNA表达水平;共转染pri-miR-378可显著抑制含caspase-3 mRNA 3'-UTR的荧光素酶报告基因的表达(P<0.05,n=6)。结论 miR-378可通过负性调节caspase-3蛋白表达水平,来减轻OGD致N2A细胞缺血损伤,所获实验结果有助于从miRNAs水平为缺血性脑卒中提供潜在的治疗靶点。展开更多
基金Supported by Regional Fund Project of National Natural Science Foundation of China(81860821)Gansu Province Higher Education Innovation Ability Enhancement Project in 2019(2019B-104)Innovation and Entrepreneurship Fund for Graduate Students of Gansu University of Chinese Medicine(2022CX64).
文摘[Objectives]To observe the effects of Cigu Xiaozhi Formula on miR-378a-3p expression and Hh signaling pathway in TGF-β1 induced and activated LX2 cells.[Methods]Cells were divided into control group,induction group,drug-containing serum group,miR-378a-3p inhibitor group,and miR inhibitor NC group.CCK-8 method was used to detect the cell viability of each group,and flow cytometry was used to detect the apoptosis rate of each group.RT-qPCR was used to detect the expression of miR-378a-3p in each group s cells,and RT-qPCR and Western blot were used to detect mRNA and protein expression of Shh,Gli1,Gli2,Col-I,andα-SMA in each group s cells.[Results]Compared with the control group,the cell viability and expression of Shh,Gli1,Gli2,Col-I,andα-SMA mRNA and protein in induction group increased(P<0.01),while the expression of miR-378a-3p decreased(P<0.01).Compared with the induction group,the cell viability and expression of Shh,Gli1,Gli2,Col-I,α-SMA mRNA andα-SMA and Gli2 protein decreased in drug-containing serum group(P<0.05),while cell apoptosis rate and miR-378a-3p expression increased(P<0.01).In miR-378a-3p inhibitor group,cell viability and the expression of Shh,Gli1,Gli2,Col-I,α-SMA mRNA and Gli1,Gli2,α-SMA protein increased(P<0.05,P<0.01),while the apoptosis rate and miR-378a-3p expression decreased(P<0.05,P<0.01).[Conclusions]Cigu Xiaozhi Formula containing serum can upregulate miR-378a-3p expression and downregulate the expression of Gli2 andα-SMA in TGF-β1 induced LX2 cells,thereby inhibiting the activation of LX2 cells and exerting the effects of anti liver fibrosis.
