Probiotic-derived postbiotics: a perspective on next-generation therapeutics

Area of Science:

• Microbiology
• Immunology
• Metabolic Science

Background:

• The gut microbiome is crucial for host health, with dysbiosis linked to diseases like cancer and IBD.
• Probiotics are used for microbial balance but face challenges like inconsistent colonization and gene transfer.
• Postbiotics, non-viable microbial metabolites, emerge as a safer, effective alternative.

Purpose of the Study:

• To review the literature on postbiotics as a therapeutic alternative to probiotics.
• To summarize the properties and applications of key postbiotic classes.
• To discuss advancements in postbiotic formulation and future research directions.

Main Methods:

• Literature review focusing on postbiotics and their therapeutic potential.
• Analysis of exopolysaccharides, cell-free supernatants, short-chain fatty acids, and bacteriocins.
• Examination of formulation techniques like encapsulation for enhanced stability.

Main Results:

• Postbiotics exhibit immunomodulatory, antimicrobial, antioxidant, and anti-cancer effects.
• Formulation strategies like encapsulation improve postbiotic stability and bioavailability.
• Key postbiotic classes include exopolysaccharides, SCFAs, and bacteriocins.

Conclusions:

• Postbiotics represent a sustainable, non-viable, and functionally rich therapeutic option.
• Further research is needed to standardize composition, clarify mechanisms, and assess safety.
• Postbiotics align with global health goals for safer, scalable health solutions.