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MicroRNA Expression and Target Prediction in Children with Nephrotic Syndrome.
Pricilla Charmine1, Vettriselvi Venkatesan2, Sangeetha Geminiganesan3
1Faculty of Clinical Research, Sri Ramachandra Institute of Higher Education and Research (SRIHER), Porur, Chennai, India.
Indian Journal of Nephrology
|January 28, 2025
Summary
MicroRNAs miR-424 and miR-155 are upregulated in children with steroid-resistant nephrotic syndrome (SRNS), while miR-17 is downregulated. This finding aids understanding of childhood nephrotic syndrome pathogenesis.
Area of Science:
- Pediatric Nephrology
- Molecular Biology
- Biomarkers
Background:
- Nephrotic syndrome is a significant pediatric kidney disease.
- MicroRNAs are implicated in various pathophysiological processes.
- Understanding microRNA roles is crucial for disease mechanisms.
Purpose of the Study:
- To investigate microRNA expression patterns in childhood nephrotic syndrome.
- To compare microRNA profiles in steroid-sensitive (SSNS) and steroid-resistant (SRNS) nephrotic syndrome.
- To identify potential microRNA biomarkers for disease classification.
Main Methods:
- Urine samples collected from SSNS, SRNS, and healthy control groups (n=100 each).
- Quantitative real-time PCR (RT-PCR) used to determine microRNA expression levels.
- Bioinformatics tools (miRWalk, miR-Tar link) and g:Profiler software employed for target prediction and functional analysis.
Main Results:
- miR-424-5p and miR-155p showed significant upregulation in the SRNS group compared to controls.
- miR-17-5p demonstrated significant downregulation in the SRNS group.
- Distinct microRNA expression profiles were observed between SSNS and SRNS.
Conclusions:
- The study identified specific microRNAs (miR-424-5p, miR-155p, miR-17-5p) with altered expression in childhood nephrotic syndrome.
- These microRNAs may serve as potential biomarkers for distinguishing between SSNS and SRNS.
- Combined analysis of microRNA and gene expression can enhance understanding of nephrotic syndrome pathogenesis.
