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Mupirocin: A Useful Antibiotic for Methicillin-Resistant Staphylococcus aureus Decolonization: A Narrative Review
Yasin Saberi1, Kasra Javadi2,3, Arezoo Mirzaei4
1Student Research Committee, Babol University of Medical Sciences, Babol, Iran.
Microbial Drug Resistance (Larchmont, N.Y.)
|July 11, 2025
Summary
Mupirocin effectively treats skin infections and MRSA decolonization. However, increasing global resistance, particularly high-level resistance via mupA and mupB genes, necessitates careful Mupirocin use to maintain its efficacy.
Area of Science:
- Microbiology and Infectious Diseases
- Pharmacology and Therapeutics
Background:
- Mupirocin (MUP) is a topical antibiotic from Pseudomonas fluorescens.
- It is crucial for treating superficial skin infections and decolonizing methicillin-resistant Staphylococcus aureus (MRSA).
- MUP uniquely inhibits bacterial isoleucyl-transfer RNA synthetase, minimizing cross-resistance.
Purpose of the Study:
- To provide an updated review of Mupirocin's profile.
- To cover chemical structure, mechanism of action, clinical efficacy, and resistance.
- To analyze global resistance trends from 2017-2024.
Main Methods:
- Narrative review of scientific literature.
- Literature search focused on publications from 2017 to 2024.
- Synthesis of data on Mupirocin's clinical use and resistance patterns.
Main Results:
- Mupirocin remains effective for MRSA nasal decolonization.
- Increasing global reports of Mupirocin resistance.
- High-level resistance is linked to mupA and mupB genes.
Conclusions:
- Judicious use of Mupirocin is vital.
- Understanding resistance patterns is essential for preserving clinical utility.
- Antimicrobial resistance necessitates careful stewardship of Mupirocin.
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