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Updated: Mar 26, 2026
Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
Published on: March 3, 2023
Survival proteomes: the emerging proteotype of antimicrobial resistance
Amber J Park1, Jonathan R Krieger2, Cezar M Khursigara3
1Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON N1G 2W1, Canada.
Abstract:
Antimicrobial resistance is one of the greatest challenges in modern medicine. Infectious diseases that have historically been eliminated with routine antibiotic therapy are now re-emerging as life threatening illnesses. A better understanding of the specific mechanisms that contribute to resistance are required to optimize the treatment of infectious microorganisms and limit the survival of recalcitrant populations. This challenging area of research is made more problematic by the observation that multiple, overlapping, and/or compensatory resistance mechanism are often present within a single bacterial species. High-resolution proteomics has emerged as an effective tool to study antimicrobial resistance as it allows for the quantitative investigation of multiple systems concurrently. Furthermore, the ability to examine extracellular mechanisms of resistance and important post-translational modifications make this research tool well suited for the challenge. This review discusses how proteomics has contributed to the understanding of antimicrobial resistance and focuses on advances afforded by the more recent development of technologies that produce quantitative high-resolution proteomic information. We discuss current strategies for studying resistance, including comparative analysis of resistant and susceptible strains and protein-based responses to antimicrobial challenge. Lastly, we suggest specific experimental approaches aimed at advancing our understanding of protein-based resistance mechanisms and maximizing therapeutic outcomes in the future.
Insights
High-resolution proteomics aids understanding of antimicrobial resistance mechanisms. This approach quantifies multiple resistance factors, crucial for combating evolving infectious diseases and improving antibiotic treatments.
Area of Science:
- Microbiology
- Proteomics
- Molecular Biology
Background:
- Antimicrobial resistance (AMR) poses a significant threat to modern medicine, leading to re-emerging life-threatening infectious diseases.
- Understanding complex, often overlapping, resistance mechanisms within bacterial species is critical for effective treatment.
- Traditional methods struggle to capture the multifaceted nature of bacterial resistance.
Purpose of the Study:
- To review the contribution of proteomics to understanding antimicrobial resistance.
- To highlight advances in quantitative high-resolution proteomics for AMR research.
- To discuss current and future experimental strategies for studying protein-based resistance.
Main Methods:
- Utilizing high-resolution proteomics for quantitative analysis of bacterial proteomes.
- Investigating extracellular resistance mechanisms and post-translational modifications.
- Employing comparative proteomics of resistant versus susceptible bacterial strains.
- Analyzing protein-based responses to antimicrobial challenge.
Main Results:
- Proteomics enables concurrent quantitative investigation of multiple resistance mechanisms.
- High-resolution techniques provide insights into complex and compensatory resistance pathways.
- Proteomic analysis can identify key proteins and modifications involved in antimicrobial tolerance.
- This approach is vital for understanding recalcitrant bacterial populations.
Conclusions:
- High-resolution proteomics is an effective tool for dissecting complex antimicrobial resistance.
- Quantitative proteomic data is essential for optimizing current treatments and developing new therapeutic strategies.
- Future research should leverage advanced proteomic technologies to advance AMR understanding and clinical outcomes.
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