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Excel · study · 2026

Pulmonary ILC2-mediated Serotonergic Circuit in RSV‐evoked Airway Hyperreactivity and Cough hypersensitivity

Listed in NCBI GEO

Respiratory syncytial virus (RSV) infection-induced inflammatory mediators interact with immune cells or vagal sensory neurons (VSNs), leading to airway hyperreactivity (AHR) or cough hypersensitivity, both hallmarks of asthma.

Description

Neuronal modulation of group 2 innate lymphoid cells (ILC2s) plays a pivotal role in asthma development and progression. However, the role of ILC2-derived serotonergic signaling in AHR and cough hypersensitivity remains unexplored.

Here, we found that ILC2 expressed Tph1 and released serotonin through C/EBPβ signaling. Utilizing conditional deletion of Tph1 in ILC2s and adoptive transfer approaches in murine asthmatic models, we revealed the contribution of ILC2-derived serotonin in asthma pathogenesis. Mechanistically, we identified that 5-HT2A/NF-κB signaling promotes ILC2 activation.

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Moreover, we discovered an ILC2-vagal sensory neuron interaction via the serotonin/5-HT3A axis, participating in cough hypersensitivity. Clinically, Tph1 and serotonin expressions are elevated and correlate with type 2 cytokine levels in asthma. Collectively, our findings demonstrate an ILC2-dependent serotonergic circuit that regulates immune responses and neuron activation, contributing to AHR and cough in RSV-induced airway disease.

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From keywords
Life Sciences
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Disease 75%
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
NCBI GEOGSE30705914 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:10090source · 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