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The WinCF Model - An Inexpensive and Tractable Microcosm of a Mucus Plugged Bronchiole to Study the Microbiology of Lung Infections
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Integrative microbiomics in bronchiectasis exacerbations.

Micheál Mac Aogáin1, Jayanth Kumar Narayana1, Pei Yee Tiew1,2

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Summary
This summary is machine-generated.

Bronchiectasis patients at high risk of exacerbation show less complex airway microbiomes. Understanding microbial interactions, not just abundance, improves predicting exacerbation risk in this chronic airway disease.

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Purifying the Impure: Sequencing Metagenomes and Metatranscriptomes from Complex Animal-associated Samples

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Area of Science:

  • Microbiology
  • Pulmonary Medicine
  • Bioinformatics

Background:

  • Bronchiectasis is a chronic airway disease marked by persistent microbial presence and infections.
  • Assessing the airway microbiome is crucial for understanding disease progression and exacerbation risk.

Purpose of the Study:

  • To develop an integrative microbiomics approach for analyzing bacterial, viral, and fungal communities in bronchiectasis.
  • To investigate the relationship between airway microbiome complexity, interactions, and exacerbation risk.

Main Methods:

  • Weighted similarity network fusion was used to integrate multi-biome data.
  • Longitudinal analysis of airway microbiomes and interactomes was performed.
  • Shotgun metagenomic sequencing validated findings in an independent cohort.

Main Results:

  • Patients at high risk for exacerbation exhibited less complex microbial networks, reduced diversity, and increased microbial antagonism.
  • Microbial antagonism was observed during exacerbations and resolved post-treatment.
  • Pseudomonas interactome analysis indicated that interaction networks, not just abundance, correlate with exacerbation risk.

Conclusions:

  • Integrative microbiomics, by capturing microbial interactions, offers a more accurate assessment of exacerbation risk in bronchiectasis than single-group analysis.
  • Microbial interaction networks may be a more relevant target for antibiotic strategies in respiratory infections.