Resurrecting the intestinal microbiota to combat antibiotic-resistant pathogens

Area of Science:

• Microbiology
• Gastroenterology
• Pharmacology

Background:

• The intestinal microbiota, a complex community of bacteria, is crucial for preventing pathogen colonization.
• Antibiotic therapy can disrupt this protective barrier, leading to increased susceptibility to infections, including those caused by antibiotic-resistant strains.
• Restoring microbial balance is key to preventing post-antibiotic infections.

Purpose of the Study:

• To explore the potential of next-generation probiotics in reestablishing gut microbiota-mediated colonization resistance.
• To identify specific commensal bacterial species for probiotic development.
• To reduce infections caused by antibiotic-resistant bacteria.

Main Methods:

• Ongoing research focuses on identifying and characterizing beneficial commensal bacterial species.
• Studies involve various stages of discovery, preclinical testing, and production of potential probiotic candidates.
• Evaluation of these candidates for their ability to restore colonization resistance and eliminate pathogens.

Main Results:

• Next-generation probiotics are being developed to reestablish the protective functions of the intestinal microbiota.
• These live biotherapeutics aim to enhance colonization resistance against pathogens.
• The development pipeline includes candidates at different stages of validation and regulatory review.

Conclusions:

• Reestablishing gut microbiota-mediated colonization resistance through next-generation probiotics is a promising strategy.
• This approach can significantly reduce the incidence of infections, particularly those caused by highly antibiotic-resistant bacteria.
• The development and clinical implementation of these probiotics are warranted to combat healthcare-associated infections.