Increased UBE2L6 regulated by type 1 interferon as potential marker in TB

Area of Science:

• Immunology
• Molecular Biology
• Biochemistry

Background:

• Tuberculosis (TB) remains a significant global health challenge.
• Identifying reliable biomarkers for TB diagnosis and understanding disease mechanisms is crucial.

Purpose of the Study:

• To identify novel biomarkers for tuberculosis (TB).
• To elucidate the functional role of identified biomarkers in TB pathogenesis.
• To evaluate the diagnostic and differential diagnostic value of potential biomarkers.

Main Methods:

• Differential gene expression analysis of blood samples from a public database (GSE101805).
• Bioinformatic screening using STING and Cytoscape to identify key genes.
• Functional enrichment analysis, including ubiquitination pathways.
• Receiver Operating Characteristic (ROC) curve analysis for diagnostic value assessment.
• Experimental validation of UBE2L6 regulation by type I interferon.
• Investigation of UBE2L6's role in macrophage apoptosis and miR-146a-5p targeting.

Main Results:

• UBE2L6 was identified as a significantly upregulated gene related to ubiquitination with high diagnostic value for TB (AUC=0.791).
• UBE2L6 expression is upregulated by type I interferon and inhibits apoptosis in Mycobacterium tuberculosis (Mtb)-infected macrophages.
• miR-146a-5p, a potential target of UBE2L6, was found to be reduced in TB patients' peripheral blood mononuclear cells (PBMC) and plasma, showing diagnostic efficiency.
• UBE2L6 and miR-146a-5p demonstrate potential as biomarkers for TB diagnosis.

Conclusions:

• UBE2L6 and miR-146a-5p are identified as promising biomarkers for tuberculosis.
• UBE2L6 plays a role in TB pathogenesis by modulating Mtb-infected macrophage apoptosis.
• Further research into these biomarkers could lead to improved TB diagnostics and therapeutic strategies.