Microbiome-innate immune crosstalk in acute exacerbation of idiopathic pulmonary fibrosis: an amplification framework
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By
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May 1, 2026
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1
Acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF) significantly contributes to short-term mortality and requires further investigation into its biological mechanisms.
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2
The distal lung microbiome is not sterile; it harbors microorganisms that may interact with host immune responses in the context of AE-IPF.
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3
Pulmonary dysbiosis and microbial stimulation can enhance immune signaling, modify macrophage behavior, and provoke harmful neutrophil responses.
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4
Increased microbial load in IPF correlates with worse clinical outcomes, although specific causative pathogens remain to be definitively identified.
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The proposed amplification model highlights the interplay between microbial activation and immune responses, suggesting a self-perpetuating cycle in AE-IPF.
