Going to extremes: progress in exploring new environments for novel antibiotics

Area of Science:

• Microbiology
• Biotechnology
• Drug Discovery

Background:

• Antibiotics from soil microbes (e.g., Streptomyces) revolutionized infection control.
• Declining success rates of traditional methods and the rise of antimicrobial resistance (AMR) necessitate new approaches.
• Combinatorial chemistry and AI-designed ligands offer alternatives but have limitations in chemical diversity.

Purpose of the Study:

• To reassess nature's potential for discovering novel antibiotics from extreme environments.
• To explore extremotolerant organisms for unique bioactive metabolites.
• To investigate strategies for enhancing antibiotic production and combating AMR.

Main Methods:

• Identifying novel antibiotic-producing organisms from extreme and unusual environments.
• Analyzing the adapted physiologies of extremotolerant organisms.
• Examining regulatory insights for increasing antibiotic production.

Main Results:

• Organisms from extreme environments possess distinct bioactive metabolite repertoires, including antibiotics.
• Understanding extremotolerant physiology can enhance production of existing antibiotics.
• Insights gained can stimulate new antibiotic synthesis in mesophilic microorganisms.

Conclusions:

• Diverse discovery strategies, including exploring extreme environments, are crucial for addressing antimicrobial resistance (AMR).
• Nature remains a vital source for innovative antibiotic solutions.
• Harnessing extremophile biology and combinatorial insights can improve antibiotic efficacy and mitigate AMR.