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Omics · study · 2026

Conserved replication strategies facilitate the cross-species

Listed in NCBI GEO

A significant number of pandemics, endemics and even sporadic outbreaks trace back to zoonotic spillovers of emerging RNA viruses.

Description

Especially, zoonotic infections with the distantly related hepatitis E virus (HEV, species Paslahepevirus balayani) from various animal origins, such as pigs, deer, wild boar, rabbits and camelids, are well-documented and account for 20 million acute hepatitis cases each year. The detection of HEV RNA in rats surrounding pig farms suggest that they serve as an additional reservoir and source of zoonotic HEV infection.

Moreover, the rising number of zoonotic spillover events with the distantly related rat hepatitis E virus (ratHEV, species Rocahepevirus ratti) underscores the urgent need to elucidate the role of rats as a reservoir for HEV infection and in the transmission dynamics of viruses within the family Hepeviridae. Herein, we introduce a novel HEV reverse zoonosis model based on the infection of rat liver cells, which supports completion of the entire HEV replication cycle.

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RNA sequencing analyses unraveled distinct host responses to HEV infection characterized by minimal activation of innate immune responses. Importantly, host-directed antivirals targeting entry factors previously identified in human host cells effectively restricted HEV infection in rat liver cells. Furthermore, human-specific genomic rearrangements conferred increased fitness across human and rat hepatoma cells.

In conclusion, our study indicates conserved viral replication mechanisms of HEV between rats and humans, providing valuable insights into the molecular mechanisms of zoonotic spillover across species.

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From keywords
Life Sciences
Inferred from text
Evolutionary biology 70% · RNA sequencing 75% · Sequencing 75%
Provenance · 1 source records, 10 field assertions
SourceKeyLast seenRaw
NCBI GEOGSE32903114 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[field].anzsrc:group:3104enrichment · 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[modality].local:modality:rna-seqenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (75%)
concepts[modality].local:modality:sequencingenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (75%)
concepts[organism].NCBITaxon:10116source · 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