Role of microRNAs in Staphylococcus aureus infection: Potential biomarkers and mechanism
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Updated: Dec 18, 2025

A Tandem Liquid Chromatography–Mass Spectrometry-based Approach for Metabolite Analysis of Staphylococcus aureus
Published on: March 28, 2017
Rasoul Mirzaei1, Rokhsareh Mohammadzadeh2, Hamed Mirzaei3
1Department of Microbiology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
Abstract:
Staphylococcus aureus is known as a common pathogen that colonizes 30% of healthy humans. Additionally, this bacterium can cause a number of serious infections, that is, endocarditis, bacteremia, pneumonia, wound, skin infections, and tissue abscesses. A variety of cellular and molecular pathways and targets are involved in response against S. aureus. Among them, microRNAs (miRNAs) have crucial roles in response against S. aureus. In this regard, it has been shown that these molecules exert their regulatory roles via modulating a wide range of events, such as inflammatory reactions, host innate, and adaptive immunity. Current works have provided insight into the crucial involvement of miRNAs in immune defense toward Staphylococcal infections. Herein, we highlighted the current findings on the deregulation of different miRNAs in S. aureus-infected cells. Moreover, we summarized the mechanisms and targets of miRNAs in S. aureus infections.
Insights
MicroRNAs (miRNAs) play a vital role in the immune response against Staphylococcus aureus infections. This study details how altered miRNAs impact host defense mechanisms and identifies their targets in bacterial infections.
Area of Science:
- Microbiology
- Immunology
- Molecular Biology
Background:
- Staphylococcus aureus is a prevalent pathogen causing diverse infections.
- Host immune responses involve complex cellular and molecular pathways.
- MicroRNAs (miRNAs) are key regulators in immunity and host defense.
Purpose of the Study:
- To review current findings on miRNA deregulation during S. aureus infections.
- To summarize miRNA mechanisms and targets in combating S. aureus.
- To highlight the role of miRNAs in immune defense against staphylococcal infections.
Main Methods:
- Literature review of studies investigating miRNA expression in S. aureus-infected cells.
- Analysis of reported miRNA regulatory roles in inflammation and immunity.
- Identification of known and potential miRNA targets relevant to S. aureus.
Main Results:
- Specific miRNAs are consistently deregulated in S. aureus-infected cells.
- miRNAs modulate inflammatory responses and both innate and adaptive immunity.
- Deregulation impacts various cellular processes crucial for host defense.
Conclusions:
- MicroRNAs are critical components of the host defense against S. aureus.
- Understanding miRNA pathways offers potential therapeutic strategies.
- Further research into miRNA-host-pathogen interactions is warranted.
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