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Integrative Analysis of miRNA and mRNA Expression Profiles in Calcium Oxalate Nephrolithiasis Rat Model

Chuangxin Lan1,2,3,4, Dong Chen1,2,3, Xiongfa Liang1,2,3

  • 1Department of Urology, Minimally Invasive Surgery Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.

Biomed Research International
|February 3, 2018
PubMed

Insights

This study reveals distinct microRNA (miRNA) and mRNA expression profiles in rat kidneys with calcium oxalate stones. These findings offer new insights into the molecular mechanisms underlying urolithiasis.

Area of Science:

  • Nephrology
  • Molecular Biology
  • Genomics

Background:

  • The role of microRNA (miRNA) expression and function in calcium oxalate nephrolithiasis is not well understood.
  • Investigating these molecular profiles is crucial for understanding kidney stone formation.

Purpose of the Study:

  • To investigate the miRNA and messenger RNA (mRNA) expression profiles in kidney tissues of rats with induced calcium oxalate stones.
  • To identify differentially expressed genes and pathways involved in nephrolithiasis.

Main Methods:

  • Utilized Sprague Dawley rats, divided into control and stone-forming groups.
  • Collected urine and kidney tissues for analysis after 4 weeks.
  • Employed miRNA and mRNA microarray analysis, validated by quantitative real-time PCR (qRT-PCR).

Main Results:

  • Identified 38 differentially expressed miRNAs and 2728 differentially expressed mRNAs in stone-forming kidneys.
  • Gene Ontology analysis indicated enrichment in oxidation reduction, ion transport, and inflammatory responses.
  • Kyoto Encyclopedia of Genes and Genomes pathway analysis highlighted roles in cytokine-cytokine receptor interaction and chemokine signaling.

Conclusions:

  • The study identified significant miRNA and mRNA expression changes in calcium oxalate stone-induced rat kidneys.
  • These findings provide a foundation for further research into the mechanisms of urolithiasis.
  • Differential gene expression patterns suggest key pathways involved in stone pathogenesis.

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