ArticlePoultry science2026
Single-cell transcriptomics of chicken ovarian cancer identifying immune subsets with prognostic implications.
Article in Poultry science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
Ovarian cancer (OC) is a lethal gynecological malignancy with a low 5-year survival rate. The lack of preclinical models accurately capturing OC's early pathogenesis contributes to this poor prognosis. The domestic laying hen uniquely develops spontaneous OC, but its single-cell-level insights for pathogenesis have been lacking. Here, we present the first single-cell transcriptomic atlas of ovarian tissues from 110-week-old laying hens with or without OC. We annotated 12 core cellular lineages and characterized tumor-associated changes, including increased CD4+ and CD8+ T cells and reduced macrophages in OC samples. T cells sub-clustering revealed conserved cell subtype-specific pH homeostasis regulation profiles across species. Notably, gene signatures from the two dominant Cyto_CD8+ subsets exhibited opposing prognostic roles when validated against human OC datasets (GSE18520, GSE26712, GSE49997). This study confirms the laying hen as a valuable OC model by demonstrating cross-species conservation in cellular heterogeneity and oncogenic pathways, advancing it from a pathologically analogous system to a molecularly traceable tool.
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