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Updated: Nov 12, 2025

Growing a Cystic Fibrosis-Relevant Polymicrobial Biofilm to Probe Community Phenotypes
Published on: April 19, 2024
One versus Many: Polymicrobial Communities and the Cystic Fibrosis Airway
Fabrice Jean-Pierre1, Arsh Vyas2, Thomas H Hampton1
1Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA.
Abstract:
Culture-independent studies have revealed that chronic lung infections in persons with cystic fibrosis (pwCF) are rarely limited to one microbial species. Interactions among bacterial members of these polymicrobial communities in the airways of pwCF have been reported to modulate clinically relevant phenotypes. Furthermore, it is clear that a single polymicrobial community in the context of CF airway infections cannot explain the diversity of clinical outcomes. While large 16S rRNA gene-based studies have allowed us to gain insight into the microbial composition and predicted functional capacities of communities found in the CF lung, here we argue that in silico approaches can help build clinically relevant in vitro models of polymicrobial communities that can in turn be used to experimentally test and validate computationally generated hypotheses. Furthermore, we posit that combining computational and experimental approaches will enhance our understanding of mechanisms that drive microbial community function and identify new therapeutics to target polymicrobial infections.
Insights
Chronic lung infections in cystic fibrosis (CF) patients involve complex microbial communities. Computational modeling can create in vitro models to study these polymicrobial infections and find new treatments.
Area of Science:
- Microbiology
- Computational Biology
- Infectious Diseases
Background:
- Chronic lung infections in cystic fibrosis (CF) are polymicrobial, not caused by single species.
- Interactions within CF airway polymicrobial communities influence clinical outcomes.
- Existing 16S rRNA gene studies provide insights but cannot fully explain clinical diversity.
Purpose of the Study:
- To advocate for in silico approaches to build clinically relevant in vitro models of CF polymicrobial communities.
- To enable experimental validation of computationally generated hypotheses.
- To enhance understanding of microbial community function and identify novel therapeutics.
Main Methods:
- Utilizing in silico (computational) approaches to design polymicrobial communities.
- Developing in vitro models based on computational predictions.
- Integrating computational and experimental methodologies.
Main Results:
- In silico methods can guide the construction of realistic polymicrobial communities for CF lung infections.
- This integrated approach facilitates hypothesis testing and validation.
- The combined strategy advances understanding of microbial dynamics and therapeutic targets.
Conclusions:
- Computational approaches are crucial for developing in vitro models of CF polymicrobial infections.
- Integrating in silico and experimental methods enhances the study of microbial community function.
- This synergy promises to accelerate the discovery of new treatments for CF lung infections.
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