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Fabry nephropathy transcriptome

ABSTRACT: Fabry nephropathy (FN) is a rare disorder caused by mutations in the alpha-galactosidase A gene. In this study we aim at providing a framework allowing selection of biomarkers and drug-targets. Two independent Fabry Nephropathy cohorts (FA.NO and CH.RO) were subjected to RNAseq from archival kidney biopsies taken prior and up to 10 years of Enzyme Replacement Therapy. Four compartments were laser capture microdissected (glomeruli, proximal tubuli, distal tubuli and arteries). We found several pathways that were consistently altered and that these kidney compartments’ transcriptional landscapes can be leveraged in the search for drug-targets and biomarkers.

ORGANISM(S): Homo sapiens

PROVIDER: GSE178947 | GEO | 2023/07/17

REPOSITORIES: GEO

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Project description:Fabry disease, an X-linked lysosomal storage disorder caused by galactosidase alpha (GLA) gene mutations, exhibits diverse clinical manifestations, and poses significant diagnostic challenges. Early diagnosis and treatment are crucial for improved patient outcomes, pressing the need for reliable biomarkers. In this study, we aimed to identify miRNA candidates as potential biomarkers for Fabry disease using the KingFisher™ automated isolation method and NanoString nCounter® miRNA detection assay. Clinical serum samples were collected from both healthy subjects and Fabry disease patients. RNA extraction from the samples was performed using the KingFisher™ automated isolation method with the MagMAX mirVana™ kit or manually using the Qiagen miRNeasy kit. The subsequent NanoString nCounter® miRNA detection assay showed consistent performance and no correlation between RNA input concentration and raw count, ensuring reliable and reproducible results. Interestingly, the detection range and highly differential miRNA between the control and disease groups were found to be distinct depending on the isolation method employed. Nevertheless, enrichment analysis of miRNA-targeting genes consistently revealed significant associations with angiogenesis pathways in both isolation methods. Additionally, our investigation into the impact of enzyme replacement therapy on miRNA expression indicated that some differential miRNAs may be sensitive to treatment. Our study provides valuable insights to identify miRNA biomarkers for Fabry disease. While different isolation methods yielded various detection ranges and highly differential miRNAs, the consistent association with angiogenesis pathways suggests their significance in disease progression. These findings lay the groundwork for further investigations and validation studies, ultimately leading to the development of non-invasive and reliable biomarkers to aid in early diagnosis and treatment monitoring for Fabry disease.

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Fabry nephropathy transcriptome

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