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Omics · study · 2026

Cattle and human organoids recapitulate the trans-species transmission of H5N1 2.3.4.4b virus and reveal cross-reactive neutralizing antibodies in humans

Listed in NCBI GEO

The unexpected circulation of clade 2.3.4.4b H5N1 influenza viruses in dairy cattle and the transmission to diverse mammalian species poses a pandemic risk.

Description

We sought to explore cattle and human respiratory susceptibility to the 2.3.4.4b H5N1 virus. We establish long-term expandable cattle airway and mammary organoids.

The 2.3.4.4b H5N1 virus exhibits high replicative fitness in cattle mammary organoids, recapitulating its remarkable mammary tropism. The virus also replicates robustly in cattle airway organoids, suggesting an underrecognized respiratory component in ongoing outbreaks. Interestingly, human airway and nasal organoids are highly susceptible to the 2.3.4.4b H5N1 virus.

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Yet, a novel organoid-based neutralization assay reveals that N1 antibodies in human sera had cross-neutralizing activity against the 2.3.4.4b H5N1 and ancestral H5N1-VN1194 viruses. The cross-neutralization, exclusively manifested in the organoid-based assay, is enhanced after seasonal influenza vaccination and diminished after depleting N1-specific antibodies. Therefore, cross-neutralizing N1 antibodies are likely limiting zoonotic infection by H5N1 viruses in humans.

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Life Sciences
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Zoology 70%
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
NCBI GEOGSE30604315 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[field].anzsrc:group:3109enrichment · NCBI GEOtaxonomy-embedding@1.1.0title+keywords+description (70%)
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