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Background

Clinical treatment with high-dose of steroid hormone causes steroid-induced osteonecrosis of the femoral head (SONFH), whereas the internal regulation mechanism remains elusive. Numerous studies have reported that microRNAs participated in the development of SONFH through modulating gene expression. The aim of the current study was to clarify the function of microRNA-23b-3p (miR-23b-3p) and ZNF667 in SONFH.

Experimental design

Bioinformatics prediction and luciferase reporter system were utilized to confirm the target relation between miR-23b-3p and ZNF667. To examine the function of miR-23b-3p in vivo, rat SONFH models were established by specific inducers. The morphological changes, plasma viscosity, blood lipid, and inflammatory cytokines were measure by corresponding experiments.

Results

MiR-23b-3p and ZNF667 was negatively correlated in SONFH patient tissues, miR-23b-3p was down-regulated, while ZNF667 was up-regulated. MiR-23b-3p targeted ZNF667, the expression level of ZNF667 was suppressed by miR-23b-3p activation whereas strengthened by miR-23b-3p inhibition. SONHF rats with overexpressed miR-23b-3p displayed alleviated symptoms, including reduced plasma viscosity, declined blood lipids, decreased levels of pro-inflammatory cytokines and improved bone integrality. Moreover, elevation of ZNF667 reversed the repression of SONFH induced by miR-23b-3p overexpression.

Conclusions

We found that miR-23b-3p played a protective role in SONFH by targeting ZNF667, which provided a novel reference for SONFH prevention and therapy."xsd:string
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http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Gao Y."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Liu Y."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Ma X."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Jiang C."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Lin Y."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Zhou L."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Zong Y."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Wang N."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Xia W."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/author"Shan H."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/date"2020"xsd:gYear
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/name"Steroids"xsd:string
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http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/title"MicroRNA-23b-3p participates in steroid-induced osteonecrosis of the femoral head by suppressing ZNF667 expression."xsd:string
http://purl.uniprot.org/citations/32730776http://purl.uniprot.org/core/volume"163"xsd:string
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