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Pathogenic archaea: do they exist?

Ricardo Cavicchioli1, Paul M G Curmi, Neil Saunders

  • 1School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, Australia. r.cavicchioli@unsw.edu.au

Bioessays : News and Reviews in Molecular, Cellular and Developmental Biology
|October 28, 2003
PubMed
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Archaea are microorganisms not currently considered pathogens, but this review suggests they have the potential to become pathogenic. Further research is needed to understand archaeal roles in disease.

Area of Science:

  • Microbiology
  • Pathogen Discovery
  • Microbial Ecology

Background:

  • Archaea are distinct microorganisms found ubiquitously in diverse ecosystems, including human microbiota.
  • Despite their prevalence and association with hosts, no pathogenic archaea have been identified.
  • This has led to an assumption that archaea are inherently non-pathogenic.

Purpose of the Study:

  • To critically evaluate the assumption that archaea cannot be pathogenic.
  • To investigate the potential for archaea to emerge as pathogens.
  • To identify knowledge gaps regarding archaeal pathogenicity.

Main Methods:

  • Reviewing archaeal diversity in comparison to known pathogens.
  • Assessing opportunities for archaea to exhibit and be detected as pathogens.

Related Experiment Videos

  • Examining existing reports linking archaea with disease.
  • Analyzing immune responses to archaea.
  • Investigating molecular and genomic data for pathogenic systems.

    • Main Results:

    • Archaea are currently classified as non-pathogenic.
    • Evidence suggests archaea possess the potential to become pathogens.
    • A significant lack of knowledge currently obscures the true potential of archaea in disease.

    Conclusions:

    • The current belief in the absence of archaeal pathogens is not well-supported by comprehensive data.
    • Archaea have the potential to be discovered as pathogens in the future.
    • Addressing the knowledge deficit is crucial for understanding potential future health implications.