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Related Experiment Video

Updated: Jun 16, 2026

Co-culture of Living Microbiome with Microengineered Human Intestinal Villi in a Gut-on-a-Chip Microfluidic Device
10:51

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Published on: August 30, 2016

In situ genetic modification of gut bacteria.

Amandine Maire1, Raphaël Laurenceau1, Nathalie Rolhion2

  • 1Institut Pasteur, Université Paris-Cité, UMR CNRS 3525, Synthetic Biology Unit, Paris, France.

Current Opinion in Microbiology
|June 13, 2026
PubMed
Summary

Scientists are developing new tools for precise, in situ genetic manipulation of gut bacteria. These methods allow engineering microbes in their natural habitat, overcoming limitations of traditional lab techniques for better microbiome research.

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Area of Science:

  • Microbiology
  • Genetics
  • Gastroenterology

Background:

  • The gut microbiome plays a critical role in human health.
  • Traditional methods for studying bacterial function require in vitro cultivation, which creates artificial conditions.
  • These artificial conditions disrupt microbial interactions and can obscure relevant phenotypes.

Purpose of the Study:

  • To review emerging tools for precise, in situ genetic manipulation of bacteria within the gut.
  • To highlight technologies enabling genetic engineering of microbes in their native environment.
  • To explore potential therapeutic applications of in situ microbiome editing.

Main Methods:

  • Review of emerging DNA delivery systems, including engineered temperate phages, phagemids, and conjugative plasmids.
  • Discussion of genetic perturbation strategies like CRISPR-Cas tools and transposons.
  • Analysis of methods for precise, in situ genetic manipulation of gut bacteria.

Main Results:

  • Emerging tools enable precise genetic manipulation of bacteria directly within the gut.
  • These technologies facilitate the engineering of previously unculturable microbes in their natural habitat.
  • In situ methods allow for genetic screens to investigate gene and pathway functions.

Conclusions:

  • In situ microbiome editing offers a powerful approach to overcome limitations of traditional functional genomic methods.
  • These advanced tools can provide deeper insights into bacterial functions within the complex gut ecosystem.
  • The potential therapeutic applications of in situ microbiome editing are significant for human health.