Iron sequestrant DIBI, a potential alternative for nares decolonization of methicillin-resistant Staphylococcus aureus, is anti-infective and inhibitory for mupirocin-resistant isolates

David S. Allan, Maria Del Carmen Parquet, Kimberley A. Savage, Bruce E. Holbein

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Methicillin-resistant Staphylococcus aureus (MRSA) opportunistic infections are a major health burden. Decolonization of hospitalized patients with mupirocin (MUP) has reduced the incidence of infection but has led to MUP resistance. DIBI is a developmental-stage anti-infective agent that sequesters bacterial iron and bolsters innate host iron-withdrawal defenses. Clinical isolates possessing low, high, or no MUP resistance all had similarly high susceptibilities to DIBI. Intranasal DIBI reduced nares bacterial burdens in mice to the same extent as MUP. No resistance was found after exposure to DIBI.

Original languageEnglish
Article numbere02353
JournalAntimicrobial Agents and Chemotherapy
Volume64
Issue number3
DOIs
Publication statusPublished - 2020

Bibliographical note

Publisher Copyright:
Copyright © 2020 American Society for Microbiology. All Rights Reserved.

ASJC Scopus Subject Areas

  • Pharmacology
  • Pharmacology (medical)
  • Infectious Diseases

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