Cited by 52Mycobacterium research and diagnosisTuberculosis Research and EpidemiologyBurkholderia infections and melioidosis

Pleiotropic molecular effects of the Mycobacterium ulcerans virulence factor mycolactone underlying the cell death and immunosuppression seen in Buruli ulcer

Hall, Belinda, Simmonds, Rachel·2014·Biochemical Society Transactions

Abstract

Mycolactone is a polyketide macrolide lipid-like secondary metabolite synthesized by Mycobacterium ulcerans, the causative agent of BU (Buruli ulcer), and is the only virulence factor for this pathogen identified to date. Prolonged exposure to high concentrations of mycolactone is cytotoxic to diverse mammalian cells (albeit with varying efficiency), whereas at lower doses it has a spectrum of immunosuppressive activities. Combined, these pleiotropic properties have a powerful influence on local and systemic cellular function that should explain the pathophysiology of BU disease. The last decade has seen significant advances in our understanding of the molecular mechanisms underlying these effects in a range of different cell types. The present review focuses on the current state of our knowledge of mycolactone function, and its molecular and cellular targets, and seeks to identify commonalities between the different functional and cellular systems. Since mycolactone influences fundamental cellular processes (cell division, cell death and inflammation), getting to the root of how mycolactone achieves this could have a profound impact on our understanding of eukaryotic cell biology.

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Registry

Crossref · 10.1042/bst20130133

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56 of 56 references verified0 citation errors · 0 not checkable

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  • Mycolactone inhibits phagocytosis and hampers phagolysosomal maturation in macrophages.

    “This may be explained by the fact that mycolactone inhibits phagocytosis and hampers phagolysosomal maturation in macrophages (98, 99).”
  • Mycolactone contributes to immunosuppression by hampering the production of several cytokines and chemokines from macrophages.

    “In addition, mycolactone contributes to immunosuppression by hampering the production of several cytokines and chemokines from macrophages (Figure 2A) (99–101); mycolactone is effective at dampening the production of LPS-induced mediators.”
  • Mycolactone is effective at dampening the production of LPS-induced mediators.

    “In addition, mycolactone contributes to immunosuppression by hampering the production of several cytokines and chemokines from macrophages (Figure 2A) (99–101); mycolactone is effective at dampening the production of LPS-induced mediators.”

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Authors
Hall, B., & Simmonds, R.
Affiliations
University of Surrey (GB)
Corresponding author
  • Hall, Belinda
  • Simmonds, Rachel
Venue
Biochemical Society Transactions
Published
2014-01-23
Volume
42
Issue
1
Pages
177-183
ISSN
  • 0300-5127 (ISSN-L)
  • 1470-8752
OpenAlex
W1965747027
Cited by
52
References
57
Citations by year
2024: 3 · 2023: 5 · 2022: 3 · 2021: 5 · 2020: 5 · 2019: 5 · 2018: 6 · 2017: 5 · 2016: 5 · 2015: 6 · 2014: 4
FWCI
0.89
Type
journal article
Language
en
Open access
closed
Locations
  • Biochemical Society Transactions (publishedVersion)
  • PubMed (publishedVersion)
  • Surrey Research Insight Open Access (The University of Surrey) (submittedVersion)
Funders
Wellcome Trust (WT080114MA)
Topics
  • Health Sciences › Medicine › Epidemiology › Mycobacterium research and diagnosis
  • Health Sciences › Medicine › Infectious Diseases › Tuberculosis Research and Epidemiology
  • Health Sciences › Medicine › Epidemiology › Burkholderia infections and melioidosis
Keywords
mycolactone, Mycobacterium ulcerans, Buruli ulcer, virulence factors, cytotoxicity, cell death, immunosuppression, molecular targets, inflammation, cell division, eukaryotic cell biology
MeSH terms
Animals, Humans, Immune Tolerance, Immunity, Innate, Protein Biosynthesis, Apoptosis, Macrolides, Mycobacterium ulcerans, Virulence Factors, Buruli Ulcer, Host-Pathogen Interactions

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