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Related Experiment Video

Updated: Jun 13, 2026

An In Vitro Batch-culture Model to Estimate the Effects of Interventional Regimens on Human Fecal Microbiota
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Metabolic model predictions enable targeted microbiome manipulation through precision prebiotics.

Georgios Marinos1, Inga K Hamerich2, Reena Debray3

  • 1Research Group Medical Systems Biology, University Hospital Schleswig-Holstein Campus Kiel, Kiel University, Kiel, Schleswig-Holstein, Germany.

Microbiology Spectrum
|January 17, 2024
PubMed
Summary

Researchers identified precision prebiotics to selectively boost beneficial gut bacteria. Metabolic modeling predicted compounds like L-serine, which were experimentally validated to increase target microbe abundance in vitro and in vivo.

Keywords:
Caenorhabditis elegansOchrobactrum vermis MYb71Pseudomonas lurida MYb11flux balance analysisgenome-scale metabolic modelsnutritional supplementsserine

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Area of Science:

  • Microbiome research
  • Metabolic engineering
  • Host-microbe interactions

Background:

  • Host-microbe interactions are crucial for health, but targeted modulation remains challenging.
  • Existing approaches lack specificity for manipulating microbiome composition.

Purpose of the Study:

  • To identify precision prebiotics that selectively increase the abundance of specific beneficial microbiome species.
  • To develop a metabolic modeling approach for designing precision prebiotics.

Main Methods:

  • Utilized constraint-based metabolic modeling to predict precision prebiotics.
  • Designed experiments using a two-member Caenorhabditis elegans microbiome community.
  • Validated predicted precision prebiotics in vitro and in vivo.

Main Results:

  • Metabolic modeling identified potential precision prebiotics.
  • Four compounds (L-serine, L-threonine, D-mannitol, γ-aminobutyric acid) selectively increased target species abundance.
  • L-serine demonstrated efficacy in vivo, increasing target microbe levels in the host.

Conclusions:

  • Metabolic modeling is an effective tool for designing precision prebiotics.
  • Precision prebiotics can selectively modulate microbiome composition.
  • This approach is a cornerstone for developing targeted microbiome-based therapies.