Differentially expressed circulating miRNAs in postmenopausal osteoporosis: a meta-analysis.

Area of Science:

• Molecular Biology
• Genetics
• Biomarker Discovery

Background:

• MicroRNAs (miRNAs) are critical in postmenopausal osteoporosis (PMO) pathogenesis.
• Increasing research focuses on miRNAs as diagnostic markers for PMO.
• Identifying specific miRNAs can aid in early detection and management of PMO.

Purpose of the Study:

• To identify key microRNAs (miRNAs) in postmenopausal osteoporosis (PMO) as potential biomarkers.
• To evaluate the diagnostic value of specific miRNAs in PMO.
• To explore the therapeutic potential of identified miRNAs in PMO.

Main Methods:

• Systematic literature search of PubMed, Web of Science, Embase, and Cochrane Library.
• Meta-analysis using robust rank aggregation (RRA) on 16 miRNA expression studies (327 PMO patients, 328 controls).
• Bioinformatics analysis for target gene prediction and pathway enrichment (Kyoto Encyclopedia of Genes and Genomes).

Main Results:

• A significant meta-signature of up-regulated hsa-miR-133a-3p (P = 1.38e-03) was identified in PMO.
• Bioinformatics analysis linked hsa-miR-133a-3p to pathways including adrenergic signaling, adherens junction, PI3K-Akt, and AMPK signaling.
• Six hub genes (CDC42, RHOA, EGFR, VAMP2, PIK3R2, FN1) were identified, enriched in signaling and cancer pathways.

Conclusions:

• Circulating hsa-miR-133a-3p may serve as a potential non-invasive biomarker for PMO.
• hsa-miR-133a-3p presents a potential therapeutic target for postmenopausal osteoporosis.
• Further research is warranted to validate hsa-miR-133a-3p as a clinical biomarker for PMO.