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Related Experiment Video

Updated: Jun 13, 2025

A Tandem Liquid Chromatography–Mass Spectrometry-based Approach for Metabolite Analysis of Staphylococcus aureus
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Adaptive physiological and metabolic alterations in Staphylococcus aureus evolution under vancomycin exposure.

Xin Cheng1, Yue Shi1, Yadong Liu2,3

  • 1Clinical Laboratory Center, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China.

World Journal of Microbiology & Biotechnology
|September 16, 2024
PubMed
Summary

Staphylococcus aureus develops vancomycin resistance and evades immune cells through metabolic shifts. Understanding these changes offers new strategies against antibiotic-resistant bacterial infections.

Keywords:
Staphylococcus aureusRaw264.7Untargeted metabolomicsVancomycin exposure

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Area of Science:

  • Microbiology
  • Metabolomics
  • Immunology

Background:

  • Staphylococcus aureus infections are challenging due to antibiotic resistance and immune evasion.
  • Metabolic underpinnings of S. aureus resistance and immune evasion remain largely unknown.

Purpose of the Study:

  • To investigate metabolic alterations in vancomycin-intermediate Staphylococcus aureus (VISA) and their impact on phagocytosis resistance.
  • To identify differential metabolites associated with VISA phenotype and enhanced immune evasion.

Main Methods:

  • Derivation of a vancomycin-intermediate variant strain (C1V) from parental S. aureus (C1).
  • Comparative analysis of C1 and C1V strains, including survival during phagocytosis by Raw264.7 cells.
  • Untargeted metabolomics analysis of strains pre- and post-induction and pre- and post-phagocytosis.

Main Results:

  • C1V exhibited vancomycin intermediate resistance and enhanced survival against phagocytosis compared to C1.
  • Significant metabolic differences were observed between C1 and C1V, and in response to phagocytosis.
  • C1V showed altered morphology, reduced adhesion, and impaired virulence.

Conclusions:

  • Metabolic reprogramming is crucial for Staphylococcus aureus vancomycin resistance and immune evasion.
  • Differential metabolites identified may represent targets for overcoming antibiotic resistance and enhancing host immunity.
  • Manipulating bacterial metabolism could be a viable strategy against resistant S. aureus infections.