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Related Experiment Videos

"Salmonella, meet mycobacteria."

Stephanie R Lovell-Read1,2, Luiz Pedro Sorio de Carvalho3

  • 1Mycobacterial Metabolism and Antibiotic Research Laboratory, The Francis Crick Institute, London, UK.

The Journal of Experimental Medicine
|March 3, 2019
PubMed
Summary

Researchers discovered a new type of trehalose-containing cell wall lipids in virulent Salmonella serovars. These lipids are structurally similar to the mycobacterial immunogen, cord factor, offering new insights into bacterial pathogenesis.

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Area of Science:

  • Microbiology
  • Lipidomics
  • Immunology

Background:

  • Salmonella serovars are significant bacterial pathogens.
  • Bacterial cell wall composition is crucial for virulence.
  • Cord factor is a known mycobacterial immunogen.

Purpose of the Study:

  • To identify novel cell wall lipids in Salmonella.
  • To investigate the structural relationship between Salmonella lipids and known immunogens.

Main Methods:

  • Comparative lipidomics was employed.
  • Analysis focused on virulent Salmonella serovars.

Main Results:

  • A new family of trehalose-containing cell wall lipids was identified.
  • These lipids are enriched in virulent Salmonella serovars.

Related Experiment Videos

  • The identified lipids are structurally related to mycobacterial cord factor.

    • Conclusions:

    • The newly identified lipids represent a potential virulence factor in Salmonella.
    • Structural similarity to cord factor suggests possible roles in host-pathogen interactions.
    • Further research into these lipids could reveal new therapeutic targets.