Roles of microRNAs in renal disorders related to primary podocyte dysfunction

Area of Science:

• Molecular Biology
• Nephrology
• Genetics

Background:

• MicroRNAs (miRNAs) are key regulators of gene expression, influencing critical cellular functions like proliferation, differentiation, and apoptosis.
• Dysregulation of miRNA expression is implicated in kidney diseases, including chronic kidney disease (CKD) and acute kidney injury (AKI).
• miRNAs detected in urine show potential as non-invasive biomarkers for various kidney conditions.

Purpose of the Study:

• To review current research on microRNAs (miRNAs) involved in primary podocyte dysfunction-related renal disorders.
• To emphasize the role of miRNAs in Focal Segmental Glomerulosclerosis (FSGS), Minimal Change Disease (MCD), and Membranous Nephropathy (MN).

Main Methods:

• Review of high-throughput screening methods like small RNA sequencing and microarrays for detecting miRNA alterations.
• Analysis of studies investigating miRNA levels in urine (supernatant, sediment, exosomes) as potential biomarkers.
• Synthesis of research on the therapeutic applications of anti-miRNAs and miRNA administration.

Main Results:

• Alterations in kidney miRNA expression are observed in both animal models and human patients with CKD and AKI.
• Urinary miRNA profiles can serve as predictive biomarkers for kidney diseases such as IgA nephropathy, lupus nephritis, and diabetic nephropathy.
• Emerging evidence suggests therapeutic potential for miRNA-based interventions in kidney disorders.

Conclusions:

• miRNAs play a significant role in the pathogenesis of renal disorders stemming from podocyte dysfunction.
• Further research into miRNA mechanisms and therapeutic strategies is crucial for advancing the treatment of kidney diseases like FSGS, MCD, and MN.
• miRNAs represent promising targets for diagnostic and therapeutic development in nephrology.