ArticleAllergy2026
Fel d 1-Expressing Plant-Derived Bioparticle: A Novel Treatment for Cat Allergy.
Article in Allergy, 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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17 authors.
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Abstract
backgroundAllergen immunotherapy (AIT) is the only disease-modifying therapeutic approach for cat allergy, though it requires at least three years of treatment and can potentially induce severe systemic reactions. Plant-derived bioparticles expressing Fel d 1 allergen (Fel d 1 eBP) have been developed as a novel therapeutic candidate for cat allergy. We aimed to investigate the allergenicity and immunogenicity profile of Fel d 1 eBP.
methodsFel d 1 eBP was synthesised in vivo in Nicotiana benthamiana and confirmed by cryo-electron microscopy and tomography. Immune modulatory properties of purified natural Fel d 1 (nFel d 1) and Fel d 1 eBP were assessed at T and B cells by flow cytometry in 12 cat-allergic subjects (CA) and 12 non-atopic controls (NAC). Single-cell RNA-seq was used to assess molecular mechanisms of Fel d 1 eBP immune skewing. The safety of Fel d 1 eBP was assessed by measuring basophil responsiveness in whole blood and further confirmed in vivo by its administration as a skin prick test (SPT) in 20 cat-allergic individuals.
resultsFel d 1 eBP was shown to be a strong inducer of Th1 cells (p < 0.05) and IL-10
conclusionsWe demonstrate that Fel d 1 eBP is hypoallergenic and demonstrates tolerogenic properties, making it a novel candidate for use in AIT for cat allergy.
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