The thick waxy coat of mycobacteria, a protective layer against antibiotics and the host's immune system

Biochem J. 2020 May 29;477(10):1983-2006. doi: 10.1042/BCJ20200194.

Abstract

Tuberculosis, caused by the pathogenic bacterium Mycobacterium tuberculosis (Mtb), is the leading cause of death from an infectious disease, with a mortality rate of over a million people per year. This pathogen's remarkable resilience and infectivity is largely due to its unique waxy cell envelope, 40% of which comprises complex lipids. Therefore, an understanding of the structure and function of the cell wall lipids is of huge indirect clinical significance. This review provides a synopsis of the cell envelope and the major lipids contained within, including structure, biosynthesis and roles in pathogenesis.

Keywords: biosynthesis; cell wall; lipids; mycobacterium tuberculosis; mycolic acids.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Anti-Bacterial Agents / pharmacology
  • Cell Wall* / chemistry
  • Cell Wall* / immunology
  • Host Microbial Interactions
  • Immune System
  • Lipid Metabolism
  • Lipids / biosynthesis
  • Mycobacterium tuberculosis* / cytology
  • Mycobacterium tuberculosis* / drug effects
  • Mycobacterium tuberculosis* / immunology
  • Mycobacterium tuberculosis* / metabolism
  • Mycolic Acids / metabolism*
  • Tuberculosis / drug therapy
  • Tuberculosis / microbiology*

Substances

  • Anti-Bacterial Agents
  • Lipids
  • Mycolic Acids