
Has-miR-204-5p mediates intervertebral disc degeneration and associated pain symptoms: evidence from Mendelian randomization and bioinformatics
Li Ningdao, Zhao Runhan, Zhang Jun, Tang Dagang, Luo Xiaoji
Has-miR-204-5p mediates intervertebral disc degeneration and associated pain symptoms: evidence from Mendelian randomization and bioinformatics
Objective To identify novel MicroRNA biomarkers of intervertebral disc degeneration(IDD) and related pain symptoms,and to explore the underlying molecular mechanisms. Methods Genome-wide association studies(GWAS) data for MicroRNAs,back pain,and sciatica were obtained from a published article and the GWAS Catlog database. IDD-associated MicroRNA and mRNA expression data were downloaded from the GEO database. Key MicroRNAs were identified using Mendelian randomization and bioinformatics analyses. The biological functions of their target genes were explored based on the GeneMANIA database. Results Mendelian randomization analysis showed that has-miR-204-5p had significant causal effects with both back pain(GCST90018797,OR=0.9761) and sciatica(GCST90044614,OR=0.8957). Moreover,bioinformatics analysis revealed that has-miR-204-5p was significantly less expressed in IDD tissues,and its three target genes(COL3A1,RPLP1,and TCF4) were abnormally highly expressed in IDD tissues. In addition,biological function enrichment analysis revealed that the three target genes were mainly enriched in biological functions closely related to IDD,such as collagen,ribosome,and the Wnt signaling pathway. Conclusion Has-miR-204-5p is a reliable IDD biomarker that plays an important role in IDD and associated pain symptoms.
intervertebral disc degeneration / Mendelian randomization / bioinformatics / has-miR-204-5p
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