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Omics · study · 2026

Heterologous expression of interferon-stimulated genes reveals conserved anti-Toxoplasma properties between human and porcine cells

Listed in NCBI GEO

Toxoplasma is a zoonotic parasite that can cause life-threatening illness in humans and animals.

Description

The similarities in Toxoplasma pathogenesis between pigs and humans make pigs an attractive model for studying human toxoplasmosis. However, the mechanisms underpinning these similarities remain poorly understood.

Since interferon-gamma (IFNg) is crucial for immunity to Toxoplasma, we hypothesized that IFNg signaling pathways conserved between humans and pigs contribute to comparable Toxoplasma pathogenesis. Using a genetic gain-of-function strategy, we observed that human or porcine interferon regulatory factor 1 (IRF1) and indoleamine 2,3-dioxygenase 1 (IDO1) inhibited Toxoplasma replication in both homologous and heterologous human and porcine cells.

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IRF1-depleted porcine cells that failed to control Toxoplasma growth could be rescued by ectopic expression of human IRF1, which induces genes similar to those regulated by porcine IRF1. Additionally, the expression of either human or pig IRF1 dampened Toxoplasma-induced transcriptional remodeling of porcine genes. These findings highlight conserved IFN-induced anti-Toxoplasma mechanisms between pigs and humans and enhance the potential of pigs as large animal models for human toxoplasmosis.

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Life Sciences
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Animal production 70%
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
NCBI GEOGSE32619613 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[field].anzsrc:group:3003enrichment · 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:9823source · 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