Whole transcriptome expression profiles in kidney samples from rats with hyperuricaemic nephropathy

Area of Science:

• Genomics
• Molecular Biology
• Nephrology

Background:

• Hyperuricaemic nephropathy (HN) is a serious complication of hyperuricaemia (HUA).
• Understanding the molecular mechanisms of HN is crucial for developing effective treatments.
• Previous studies have not fully elucidated the genetic and network dysregulations in HN.

Purpose of the Study:

• To identify dysregulated genes, pathways, and networks in hyperuricaemic nephropathy (HN).
• To investigate the potential molecular mechanisms underlying HN using whole transcriptome sequencing.
• To establish a competitive endogenous RNA (ceRNA) network for a comprehensive understanding of HN pathogenesis.

Main Methods:

• Whole transcriptome RNA sequencing was performed on kidney samples from HN and control groups.
• Analysis included differentially expressed genes (DEGs), Gene Ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis.
• A ceRNA network was constructed to explore interactions between lncRNAs, circRNAs, mRNAs, and miRNAs.

Main Results:

• Significant differential expression was observed for 2250 mRNAs, 306 lncRNAs, 5 circRNAs, and 70 miRNAs in HN compared to controls.
• Quantitative real-time PCR validated the differential expression of 8 ncRNAs.
• DE-ncRNAs were significantly enriched in inflammatory reaction-related pathways.

Conclusions:

• Hyperuricaemia (HUA) induces abnormal gene expression and regulates signalling pathways in kidney tissues.
• The study identified potentially crucial genes and pathways involved in the pathogenesis of HN.
• Findings provide a foundation for further research into HN mechanisms and therapeutic targets.