Establishment of an in vitro aerobic bacterial community as a model of the human lung microbiome.

A stable in vitro lung microbiome model with four bacterial species was established for 10 days at 34°C, enabling controlled studies of respiratory microbial interactions.

• Why it matters: The lung microbiome influences respiratory health and disease, but its complexity has limited detailed understanding; a simplified model is needed to explore these interactions.
• What they did: Researchers developed a reproducible co-culture of Pseudomonas koreensis, Rothia aeria, Neisseria cinerea, and Streptococcus downei, validated by multiple microbiological and bioinformatic methods.
• The result: This model provides a foundation for studying microbial interactions and drug effects, advancing insights into lung microbial ecology and potential therapeutic strategies.