Evidence map›Paper›PMID 40974251›Full record

ArticleScandinavian journal of immunology2025

Evaluation of Inhibitory Activity of Novel Monoclonal Antibodies Against Cat Allergen Fel d 7 and Their Application to Analyse Allergen Extracts.

Vytautas Rudokas, Glorismer Pena-Amelunxen, Peter Briza, Lorenz Aglas, Aurelija Zvirbliene

Abstract read
In one paragraph

Article in Scandinavian journal of immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Vytautas RudokasDepartment of Immunology, Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania.ORCID https://orcid.org/0000-0001-8440-4448
Glorismer Pena-AmelunxenDepartment of Biosciences and Medical Biology, Paris Lodron University of Salzburg, Salzburg, Austria.ORCID https://orcid.org/0000-0002-6882-4714
Peter BrizaDepartment of Biosciences and Medical Biology, Paris Lodron University of Salzburg, Salzburg, Austria.
Lorenz AglasDepartment of Biosciences and Medical Biology, Paris Lodron University of Salzburg, Salzburg, Austria.ORCID https://orcid.org/0000-0002-1236-5934
Aurelija ZvirblieneDepartment of Immunology, Institute of Biotechnology, Life Sciences Center, Vilnius University, Vilnius, Lithuania.

Funding

Austrian Science Funds (FWF) I5312Austrian Science Funds (FWF) P34207Lietuvos Mokslo Taryba D-20-0929Research Collaboration Agreement between the University of Salzburg and Amsterdam Medical Center
6 · The paper itself

Abstract

Current characterisation of cat dander/hair extracts used for allergy diagnosis or allergen-specific immunotherapy is mainly standardised towards the major allergen Fel d 1, while other allergens such as the lipocalin Fel d 7 are insufficiently characterised in such allergen products. This study aimed to produce recombinant Fel d 7 (rFel d 7) and murine IgG monoclonal antibodies (mAbs) specific to it for quantification in allergen extracts and assess the potential of the mAbs in inhibiting patients' IgE in functional assays. rFel d 7 was expressed in E. coli, purified by Ni-affinity and ion exchange chromatography, and physicochemically characterised by circular dichroism, Fourier-transform infrared spectroscopy, dynamic light scattering and mass spectrometry. Twenty hybridoma cell lines producing Fel d 7-specific mAbs were generated and sandwich ELISA was established for the quantitation of Fel d 7. Six different cat allergen extracts from different manufacturers and prepared from different sources were analysed and the concentration ranged from 0.02 μg/mg to 22.59 μg/mg. A mAb pool recognising non-overlapping epitopes inhibited the binding of human IgE-antigen complex formation (63.7% highest inhibition) and IgE-Fel d 7 cross-linking and consequent degranulation of basophilic cells (57.2% highest inhibition). We demonstrate the vast difference of Fel d 7 content in different cat allergen extracts, highlighting the necessity of improved standardisation of cat allergen extracts. The inhibition results showed that the analysed mAbs effectively inhibit rFel d 7 binding to human IgE, an assay we recommend for assessing the potency of allergen extracts as part of extract standardisation.

Indexed as

AllergensAntibodies, MonoclonalGlycoproteinsAnimalsBasophilsCatsEnzyme-Linked Immunosorbent AssayHumansHypersensitivityImmunoglobulin EMiceRecombinant ProteinsAllergensAntibodies, MonoclonalGlycoproteinsImmunoglobulin ERecombinant Proteinsallergen extractallergycatFel d 7Felis domesticusmonoclonal antibody

Identifiers

PMID40974251
PMCPMC12449780

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.