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Omics · study · 2026

Muco-Obstructive Lung Disease Exhibits Distinct Hypoxic and Inflammatory Airway Epithelial Gene Pathways

Listed in NCBI GEO

Intraluminal obstruction produces chronic airway epithelial hypoxia.

Description

We investigated how chronic airway epithelial hypoxia and inflammatory stimuli (supernatatants of mucopurulent materials: SMM) interact in human bronchial epithelial (HBE) cultures and resected bronchiectatic lungs to produce the diseased epithelial environment characteristic of muco-obstructive diseases. Results: Hypoxia and supernatants of mucopurulent materials (SMM) regulated largely separate transcriptional programmes regardless of treatment order.

PTGS2 and CXCL8 represented a small number of genes additively upregulated by both hypoxia and SMM. HIF1A knockdown and EPAS1 knockdown produced distinct, often opposing, effects on hypoxia-responsive pathways. HIF1A dominated upregulation of glycolytic pathway signalling.

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EPAS1 regulated genes that increase mucus concentration under hypoxia (e.g., SCNN1G). Conclusion: Chronic hypoxia and inflammation regulated distinct genes/pathways that combine to produce complex diseased environments in muco-obstructed airways. HIF1α and EPAS1 regulated distinct hypoxia-induced transcriptional responses.

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Life Sciences
Inferred from text
Disease 75%
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
NCBI GEOGSE31401812 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[disease].local:disease:diseaseenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (75%)
concepts[field].local:field:life-sciencesmapping · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[method].geo_series_type:expression-profiling-by-high-throughput-sequencingsource · NCBI GEOconnector:ncbi_geo@1.0.0/gdstype
concepts[organism].NCBITaxon:9606source · NCBI GEOconnector:ncbi_geo@1.0.0/taxon
descriptionsource · NCBI GEOconnector:ncbi_geo@1.0.0/summary
publication_datesource · NCBI GEOconnector:ncbi_geo@1.0.0
titlesource · NCBI GEOconnector:ncbi_geo@1.0.0/title