circ_WBSCR17 attenuates high glucose-induced fibrosis and inflammation in human mesangial cells by regulating the miR-30a-5p /JAK1 axis / 安徽医科大学学报
Acta Universitatis Medicinalis Anhui
; (6): 1756-1762,1768, 2023.
Article
de Zh
| WPRIM
| ID: wpr-1038363
Bibliothèque responsable:
WPRO
ABSTRACT
Objective @# To investigate the influences of circ_WBSCR17 on high glucose-induced fibrosis and inflammation in human mesangial cells by regulating the miR-30a-5p /JAK1 axis.@*Methods @#Human mesangial cells HMCL were grouped into : NG group (5.5 mmol / L glucose-treated HMCL cells) ,HG group (30 mmol / L glucose- treated cells) ,si-NC group (30 mmol / L glucose + transfected with si-NC) ,si-circ_WBSCR17 group (30 mmol / L glucose + transfected with si-circ _ WBSCR17 ) ,si-circ _ WBSCR17 + inhibitor-NC group ( 30 mmol / L glucose + co-transfected with si-circ_WBSCR17 and inhibitor-NC) ,and si-circ_WBSCR17 + miR-30a-5p inhibitor group (30 mmol / L glucose + co-transfected with si-circ_WBSCR17 and miR-30a-5p inhibitor) ; RT-qPCR was performed to detect the expression of circ_WBSCR17 and miR-30a-5p in cells ; CCK-8 assay was performed to detect cell prolifer- ation ; flow cytometry was performed to detect apoptosis ; ELISA was performed to detect the expression levels of tumor necrosis factor-α (TNF-α) ,interleukin (IL) -6 and IL-8 ; Western blot was performed to detect the expression of JAK1,proliferating cell nuclear antigen ( PCNA) ,Bax,transforming growth factor-β1 ( TGF-β1 ) ,fibronectin (FN) ,collagen IV,and α-smooth muscle actin ( α-SMA) ; distribution of WBSCR17 was detected by fluorescence in situ hybridization (FISH) ; dual-luciferase reporter gene experiment was performed to verify the relationship between circ _ WBSCR17 and miR-30a-5p,miR-30a-5p and JAK1,respectively. @*Results @#Compared with the NG group,the HMCL cell proliferation ability of the HG group decreased,the levels of TNF-α , IL-6 and IL-8,the pro- tein expressions of p-JAK1 /JAK1,p-STAT1 / STAT1,p-STAT3 / STAT3,TGF-β1,FN,collagenIV and α-SMA,and the apoptosis ability increased (P<0. 05) ; compared with HG group and si-NC group,the expression of miR-30a- 5p,OD450 value and PCNA expression in HMCL cells of si-circ_WBSCR17 group increased,the levels of TNF-α , IL- 6 and IL-8,the expressions of circ_WBSCR17,p-JAK1 /JAK1,p-STAT1 / STAT1,p-STAT3 / STAT3,Bax,TGF-β1, FN,collagenIV and α-SMA decreased ( P <0. 05 ) ; inhibition of miR-30a-5p attenuated the promoting effect of knockdown of circ_WBSCR17 on proliferation of HMCL cells,and enhanced apoptosis,cellular fibrosis and inflammatory responses ; FISH experiment confirmed that WBSCR17 was mainly distributed in the cytoplasm ; dual-luciferase reporter gene experiment confirmed that circ_WBSCR17,JAK1 and miR-30a-5p had a targeted regulatory rela- tionship.@*Conclusion @#Knockdown of circ_WBSCR17 can reduce high glucose-induced fibrosis and inflammation in human mesangial cells by regulating the miR-30a-5p /JAK1 axis.
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Indice:
WPRIM
langue:
Zh
Texte intégral:
Acta Universitatis Medicinalis Anhui
Année:
2023
Type:
Article