A bioinformatics analysis of exosomal microRNAs released following mycobacterial infection

Int J Mycobacteriol. 2019 Jul-Sep;8(3):218-222. doi: 10.4103/ijmy.ijmy_88_19.

Abstract

Background: Tuberculosis (TB) still remains a major health threat worldwide. The current TB diagnostics are suboptimal, and there is a high clinical need for identifying novel biomarkers of disease prevalence. Circulating exosomes have been currently attractive as novel biomarkers in a wide range of pathological conditions.

Methods: In this study, we performed bioinformatics analysis on the downstream targets of a dysregulated microRNA (miRNA) cluster induced by Bacillus Calmette-Guerin infection of human macrophages to provide greater understanding of their potential roles in disease pathogenesis.

Results: Our analysis demonstrated that these dysregulated miRNAs have central roles in the host metabolic and energy pathways.

Conclusion: This suggests that the host miRNA network is perturbed by Mycobacterium to re-patterning host metabolism machinery to favor its intracellular survival. The dysregulated miRNAs can be delivered to local and distal cells by exosomes and thereby modulate their function.

Keywords: Clusters; exosomal; microRNAs; tuberculosis.

MeSH terms

  • Biomarkers / analysis
  • Cells, Cultured
  • Computational Biology*
  • Exosomes*
  • Gene Expression Profiling
  • Humans
  • Macrophages / microbiology*
  • MicroRNAs / genetics*
  • Mycobacterium bovis*
  • Protein Interaction Maps

Substances

  • Biomarkers
  • MicroRNAs