The dual implications of iron homeostasis as a bacterial threat: its roles in virulence and antimicrobial resistance

Naveenraj Rajasekar1,2, Vijaya Bharathi Srinivasan1, Karthikeyan Krishnan1,2

  • 1CSIR-Institute of Microbial Technology, Sector 39A, Chandigarh, India.

Archives of Microbiology
|December 9, 2025
PubMed

Insights

Antimicrobial resistance (AMR) is a growing global threat. Targeting bacterial iron homeostasis presents a promising strategy to develop novel therapeutics against drug-resistant pathogens.

Area of Science:

  • Microbiology
  • Pathogenesis
  • Drug Discovery

Background:

  • Antimicrobial resistance (AMR) poses a significant global health challenge, necessitating novel therapeutic approaches.
  • Bacterial pathogens employ diverse mechanisms to develop AMR, complicating treatment outcomes.
  • Iron is essential for bacterial survival, virulence, and pathogenesis, making it a critical factor in infection.

Purpose of the Study:

  • To explore the intricate relationship between iron homeostasis, virulence, and AMR in bacterial pathogens.
  • To identify molecular targets within iron homeostasis pathways for developing new antimicrobial strategies.
  • To review current therapeutic interventions targeting iron metabolism and their translational challenges.

Main Methods:

  • Literature review of studies on bacterial iron metabolism, virulence factors, and AMR mechanisms.
  • Analysis of the functional role of iron in regulating bacterial physiology and pathogenicity.
  • Synthesis of information on therapeutic strategies targeting iron homeostasis pathways.

Main Results:

  • Iron significantly influences bacterial virulence and pathogenicity.
  • Dysregulation of iron homeostasis is linked to the development of AMR in pathogens.
  • Targeting iron acquisition and utilization pathways shows potential for combating drug-resistant bacteria.

Conclusions:

  • Understanding bacterial iron homeostasis is crucial for developing effective treatments against AMR.
  • Therapeutic strategies focused on iron metabolism offer a promising avenue for novel antimicrobial drug discovery.
  • Overcoming translational challenges is key to realizing the clinical potential of iron-targeted therapies.

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