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Mobile genetic elements: the hidden puppet masters underlying infant gut microbiome assembly?
Kim Kreuze1,2, Ville-Petri Friman2, Tommi Vatanen1,2,3,4,5
1Institute of Biotechnology, Helsinki Institute of Life Science, University of Helsinki, Helsinki FI-00014, Finland.
Microbiome Research Reports
|April 10, 2025
Summary
Mobile genetic elements (MGEs) like phages play a key role in infant gut microbiota assembly. These elements influence bacterial interactions and colonization, impacting infant gut health.
Area of Science:
- Microbiology
- Infant Gut Microbiome Research
- Mobile Genetic Elements
Background:
- The infant gut microbiome is crucial for development.
- Mother-to-infant transmission shapes the initial gut microbiota.
- The role of mobile genetic elements (MGEs) in infant gut assembly is understudied.
Purpose of the Study:
- To explore the potential roles of MGEs (phages, conjugative elements) in infant gut microbiota assembly.
- To discuss the impact of MGEs on bacterial colonization and interactions.
- To highlight research methodologies for studying MGEs in the infant gut.
Main Methods:
- Perspective article discussing existing literature.
- Analysis of potential parasitic and mutualistic interactions of MGEs with bacterial hosts.
- Consideration of horizontal and vertical transmission of MGEs.
Main Results:
- MGEs can be detrimental or beneficial to bacterial hosts.
- MGEs can facilitate niche colonization, bacterial antagonism, and protection.
- High rates of MGE horizontal transfer likely occur in the infant gut.
Conclusions:
- MGEs significantly influence infant gut microbiota composition and function.
- Horizontal gene transfer mediated by MGEs affects bacterial adaptation.
- Further in silico, in vitro, and in vivo studies are needed to understand MGE dynamics.
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