Why is antibiotic resistance a deadly emerging disease?

Area of Science:

• Microbiology
• Evolutionary Biology
• Genetics

Background:

• Antimicrobial resistance (AMR) in bacteria, including multidrug resistance, is a significant and escalating global health threat.
• The evolution of resistance is an inherent and unstoppable aspect of bacterial adaptation to selective pressures, such as antibiotic use.

Purpose of the Study:

• To review the biochemical and genetic mechanisms employed by bacteria to overcome antibiotic selective pressure.
• To provide insights into strategies for delaying the emergence and dissemination of antibiotic-resistant bacteria and resistance genes.

Main Methods:

• This review synthesizes data primarily from laboratory-based research.
• It examines existing literature on bacterial resistance mechanisms.

Main Results:

• Bacteria evolve diverse biochemical and genetic strategies to survive and proliferate in the presence of antibiotics.
• These mechanisms include enzymatic inactivation of antibiotics, modification of drug targets, and active efflux of antimicrobial agents.

Conclusions:

• Understanding bacterial resistance mechanisms is crucial for developing effective strategies to combat AMR.
• Delaying the spread of resistance through targeted interventions remains the primary approach to managing this evolving challenge.