Integrating transcriptome-wide association study and mRNA expression profiling identified candidate genes and...

Area of Science:

• Genetics
• Molecular Biology
• Bioinformatics

Background:

• Osteomyelitis (OM) is a severe inflammatory bone disease with limited understanding of its genetic underpinnings.
• Exploring the genetic basis of OM is crucial for developing targeted therapies.

Purpose of the Study:

• To identify candidate genes and biological pathways associated with osteomyelitis using an integrative approach.
• To leverage genome-wide association study (GWAS) data and transcriptome-wide association study (TWAS) for novel discoveries.

Main Methods:

• Utilized UK Biobank GWAS data for osteomyelitis.
• Performed TWAS using FUSION tool with lymphocyte and blood gene expression data.
• Conducted Gene Ontology (GO) enrichment analysis on TWAS-identified genes.
• Integrated TWAS findings with genome-wide mRNA expression profiling of OM.

Main Results:

• TWAS identified 86 genes (lymphocytes) and 387 genes (blood) associated with OM.
• Eight common genes, including VWF, CCDC50, and TPD52, were detected by comparing TWAS and mRNA expression profiling.
• GO analysis revealed OM-associated terms like peroxisomal matrix and extracellular exosome.
• Extracellular exosome was identified as a common GO term between TWAS and mRNA expression profiling.

Conclusions:

• This integrative study successfully identified multiple candidate genes and GO terms implicated in osteomyelitis.
• The findings provide novel genetic insights into the pathogenesis of OM.
• Further research into these identified genes and pathways could elucidate OM mechanisms.