What does this research mean for the field?

Pediatric postinfectious bronchiolitis obliterans is characterized by a CXCL8-centric inflammatory protein network and disrupted vitamin B6 homeostasis, which converge to drive airway epithelial injury, inflammatory activation, and tissue remodeling. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.ESTABLISHES_NEW_DIRECTION.

What question did this study set out to answer?

To elucidate the pathogenic mechanisms and identify molecular drivers of pediatric postinfectious bronchiolitis obliterans through integrated airway multiomics.

August 30, 2026Respiratory ResearchOpen Access

Integrated multiomics reveals a clinically relevant CXCL8-centric protein network in pediatric postinfectious bronchiolitis obliterans

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Authors

MJMingjun Jiang LGLiwei Gao JYJu Yin

Discussion

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Overview

Multiomic analysis reveals a CXCL8-driven inflammatory network and altered vitamin B6 metabolism in pediatric postinfectious bronchiolitis obliterans, highlighting potential therapeutic targets.

Key Points

To elucidate the pathogenic mechanisms and identify molecular drivers of pediatric postinfectious bronchiolitis obliterans through integrated airway multiomics.
Analyzed bronchoalveolar lavage fluid from children with postinfectious bronchiolitis obliterans (n=6) and controls (n=3) using transcriptomics, proteomics, and untargeted metabolomics.
Validated candidate protein biomarkers via ELISA and evaluated their correlation with pulmonary function, specifically predicted FEV1%.
Assessed the regulatory effect of pyridoxine (vitamin B6) on CXCL8 secretion in small airway epithelial cells in vitro.
Identified CXCL8 as the central hub of a 54-protein network associated with epithelial injury, tissue remodeling, and inflammation, with elevated CXCL8 levels correlating positively with predicted FEV1%.
Metabolomic analysis identified pyridoxine as the most significantly altered metabolite, showing a strong negative correlation with CXCL8 and key inflammatory proteins.
In vitro pyridoxine treatment significantly attenuated CXCL8 secretion in small airway epithelial cells, indicating a metabolic link to airway inflammation.

Cite This Study

Jiang et al. (2026) studied this question.

synapsesocial.com/papers/6a93f0476c1a8fb52e79c482 https://doi.org/10.1186/s12931-026-03882-1

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August 30, 2026Respiratory ResearchOpen Access

Integrated multiomics reveals a clinically relevant CXCL8-centric protein network in pediatric postinfectious bronchiolitis obliterans

View Full Paper

Ask AI

Bookmark

Authors

MJMingjun Jiang LGLiwei Gao JYJu Yin

Discussion

Member takes

Overview

Multiomic analysis reveals a CXCL8-driven inflammatory network and altered vitamin B6 metabolism in pediatric postinfectious bronchiolitis obliterans, highlighting potential therapeutic targets.

Key Points

To elucidate the pathogenic mechanisms and identify molecular drivers of pediatric postinfectious bronchiolitis obliterans through integrated airway multiomics.
Analyzed bronchoalveolar lavage fluid from children with postinfectious bronchiolitis obliterans (n=6) and controls (n=3) using transcriptomics, proteomics, and untargeted metabolomics.
Validated candidate protein biomarkers via ELISA and evaluated their correlation with pulmonary function, specifically predicted FEV1%.
Assessed the regulatory effect of pyridoxine (vitamin B6) on CXCL8 secretion in small airway epithelial cells in vitro.
Identified CXCL8 as the central hub of a 54-protein network associated with epithelial injury, tissue remodeling, and inflammation, with elevated CXCL8 levels correlating positively with predicted FEV1%.
Metabolomic analysis identified pyridoxine as the most significantly altered metabolite, showing a strong negative correlation with CXCL8 and key inflammatory proteins.
In vitro pyridoxine treatment significantly attenuated CXCL8 secretion in small airway epithelial cells, indicating a metabolic link to airway inflammation.

Cite This Study

Jiang et al. (2026) studied this question.

synapsesocial.com/papers/6a93f0476c1a8fb52e79c482 https://doi.org/10.1186/s12931-026-03882-1

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