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Updated: Feb 28, 2026

Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
Microbiota, Inflammation and Colorectal Cancer
Cécily Lucas1, Nicolas Barnich2, Hang Thi Thu Nguyen3
1M2iSH, UMR 1071 Inserm, University of Clermont Auvergne, INRA USC 2018, Clermont-Ferrand 63001, France. cecily.lucas@uca.fr.
The gut microbiome influences colorectal cancer (CRC) development. This review explores how specific bacteria promote CRC through inflammation, genotoxins, and toxic metabolites, and discusses microbiota-targeted therapies.
Area of Science:
- Gastroenterology
- Oncology
- Microbiology
Background:
- Colorectal cancer (CRC) is a major global health concern.
- CRC is influenced by genetic, environmental, and lifestyle factors.
- The intestinal microbiota plays a significant role in CRC development.
Purpose of the Study:
- To review the association between intestinal microbiota and CRC.
- To highlight the pro-carcinogenic mechanisms of gut bacteria.
- To discuss potential therapeutic strategies involving microbiota manipulation.
Main Methods:
- Literature review of current research on gut microbiota and CRC.
- Analysis of bacterial properties contributing to colorectal carcinogenesis.
- Exploration of therapeutic interventions targeting the gut microbiome.
Main Results:
- Alterations in gut microbiota composition are observed in CRC patients.
- Specific bacteria promote CRC by inducing inflammation.
- Bacterial genotoxins and toxic metabolites interfere with cell cycle regulation.
Conclusions:
- The intestinal microbiota is a key factor in colorectal cancer development.
- Understanding these microbial links can lead to novel therapeutic approaches.
- Targeting the gut microbiome offers potential for CRC treatment and prevention.
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