The Role of Bacterial Siderophores in Infection Therapy: From Anti-Infective Mechanisms to Therapeutic Advances.
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanisms and therapeutic applications with no new empirical human data or systematic review methodology.
PubMed 41488863 · doi:10.2147/IJN.S576272
What was done
This narrative review synthesized the structural diversity, regulatory networks, and virulence roles of bacterial siderophores in host-pathogen interactions. It examined therapeutic approaches leveraging siderophore pathways, including siderophore-antibiotic conjugates (such as cefiderocol), non-antibiotic conjugates (metal complexes, peptides, nucleic acids, vaccines, nanomaterials), antifungal/antiparasitic applications, and diagnostic imaging probes, alongside translational barriers.
What was found
The abstract provides no quantitative data or specific numerical outcomes. It describes qualitative findings: bacterial siderophores overcome host nutritional immunity, modulate immune responses, promote biofilm formation, and coordinate metal homeostasis. Siderophore-based therapeutic platforms show conceptual utility for targeted anti-infective delivery and imaging, but translation is restricted by adaptive resistance mechanisms, pharmacokinetic instability, and competition with endogenous host or microbial siderophores.
Why it matters
Exploiting microbial iron uptake pathways provides a viable strategy for delivering antimicrobial agents and imaging payloads directly into resistant pathogens. Understanding both the mechanisms and pharmacokinetic hurdles helps guide the design of next-generation engineered conjugates and nanomedicine-based delivery platforms.
Limits
The abstract reports no primary experimental data, quantitative comparisons, or clinical trials. As a narrative review, it lacks systematic search criteria or formal quality appraisal of cited studies, and discussed therapies remain largely pre-clinical or limited by in vivo pharmacokinetic instability and resistance.
Cited by
- supports Pathogens feed on and utilize iron in the body.