Evidence map›Paper›PMID 26221749›Full record

ArticleAllergy2016

Epitope specificity determines cross-protection of a SIT-induced IgG4 antibody.

E Gadermaier, L K James, M H Shamji, K Blatt, K Fauland, P Zieglmayer, T Garmatiuk, M Focke-Tejkl, M Villalba, R Beavil and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Allergy, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.2field-weighted citation impact, top 23% of its field
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

10 citing papers in PubMed, 19 citations in OpenAlex.

  1. Trial
  2. Single-Domain Antibodies-Novel Tools to Study and Treat Allergies.International journal of molecular sciences · 2024
    Review
  3. Linear epitopes of bony fish β-parvalbumins.Frontiers in immunology · 2024
    Article
  4. Review
  5. Article
  6. Nanobodies-Useful Tools for Allergy Treatment?Frontiers in immunology · 2020
    Review
  7. Article
  8. Article
  9. Observational
  10. 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

16 authors at 6 institutions in 3 countries.

E GadermaierDivision of Immunopathology, Department of Pathophysiology and Allergy Research, Centre for Pathophysiology, Infectiology and Immunology, Vienna General Hospital, Medical University of Vienna, Vienna, Austria.
L K JamesRandall Division of Cell and Molecular Biophysics, King's College London, London, UK.ORCID http://orcid.org/0000-0002-2252-4636
M H ShamjiAllergy and Clinical Immunology, National Heart and Lung Institute, Imperial College London, London, UK.
K BlattDivision of Hematology and Hemostaseology, Department of Internal Medicine I, Vienna General Hospital, Medical University of Vienna, Vienna, Austria.
K FaulandInstitute of Molecular Biosciences, University of Graz, Graz, Austria.
P ZieglmayerVienna Challenge Chamber, Allergy Centre Vienna West, Vienna, Austria.
T GarmatiukDivision of Immunopathology, Department of Pathophysiology and Allergy Research, Centre for Pathophysiology, Infectiology and Immunology, Vienna General Hospital, Medical University of Vienna, Vienna, Austria.
M Focke-TejklDivision of Immunopathology, Department of Pathophysiology and Allergy Research, Centre for Pathophysiology, Infectiology and Immunology, Vienna General Hospital, Medical University of Vienna, Vienna, Austria.
M VillalbaDepartamento de Bioquımica y Biologıa Molecular I, Universidad Complutense de Madrid, Madrid, Spain.
R BeavilRandall Division of Cell and Molecular Biophysics, King's College London, London, UK.
W KellerInstitute of Molecular Biosciences, University of Graz, Graz, Austria.ORCID http://orcid.org/0000-0002-2261-958X
P ValentDivision of Hematology and Hemostaseology, Department of Internal Medicine I, Vienna General Hospital, Medical University of Vienna, Vienna, Austria.
S R DurhamAllergy and Clinical Immunology, National Heart and Lung Institute, Imperial College London, London, UK.
H J GouldRandall Division of Cell and Molecular Biophysics, King's College London, London, UK.
S FlickerDivision of Immunopathology, Department of Pathophysiology and Allergy Research, Centre for Pathophysiology, Infectiology and Immunology, Vienna General Hospital, Medical University of Vienna, Vienna, Austria.
R ValentaDivision of Immunopathology, Department of Pathophysiology and Allergy Research, Centre for Pathophysiology, Infectiology and Immunology, Vienna General Hospital, Medical University of Vienna, Vienna, Austria.
Vienna General Hospital · ATKing's College London · GBImperial College London · GBUniversity of Graz · ATUniversidad Complutense de Madrid · ESVienna Challenge Chamber · AT

Funding

Austrian Science Fund FWF F 4605Austrian Science Fund FWF F 4607Department of HealthMedical Research Council G1100090
6 · The paper itself

Abstract

backgroundThe calcium-binding 2EF-hand protein Phl p 7 from timothy grass pollen is a highly cross-reactive pollen pan-allergen that can induce severe clinical symptoms in allergic patients. Recently, a human monoclonal Phl p 7-specific IgG4 antibody (mAb102.1F10) was isolated from a patient who had received grass pollen-specific immunotherapy (SIT).

methodsWe studied epitope specificity, cross-reactivity, affinity and cross-protection of mAb102.1F10 towards homologous calcium-binding pollen allergens. Sequence comparisons and molecular modelling studies were performed with ClustalW and SPADE, respectively. Surface plasmon resonance measurements were made with purified recombinant allergens. Binding and cross-reactivity of patients' IgE and mAb102.1F10 to calcium-binding allergens and peptides thereof were studied with quantitative RAST-based methods, in ELISA, basophil activation and IgE-facilitated allergen presentation experiments.

resultsAllergens from timothy grass (Phl p 7), alder (Aln g 4), birch (Bet v 4), turnip rape (Bra r 1), lamb's quarter (Che a 3) and olive (Ole e 3, Ole e 8) showed high sequence similarity and cross-reacted with allergic patients' IgE. mAb102.1F10 bound the C-terminal portion of Phl p 7 in a calcium-dependent manner. It cross-reacted with high affinity with Ole e 3, whereas binding and affinity to the other allergens were low. mAb102.1F10 showed limited cross-inhibition of patients' IgE binding and basophil activation. Sequence comparison and surface exposure calculations identified three amino acids likely to be responsible for limited cross-reactivity.

conclusionsOur results demonstrate that a small number of amino acid differences among cross-reactive allergens can reduce the affinity of binding by a SIT-induced IgG and thus limit cross-protection.

Indexed as

ImmunotherapyAllergensAmino Acid SequenceAntibodies, MonoclonalAntibody AffinityAntigens, PlantCalciumCross ReactionsEpitopesHumansImmunoglobulin EImmunoglobulin GModels, MolecularPeptidesPollenProtein BindingAllergensAntibodies, MonoclonalAntigens, PlantCalciumEpitopesImmunoglobulin EImmunoglobulin GPeptidesRecombinant Proteinscalcium-binding proteincross-reactivitypollen allergenrecombinant allergenSIT-induced IgG antibody

Identifiers

PMID26221749
PMCPMC4716291
OpenAlexW1825000458

What OpenQuestion holds

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LicenceCC BY
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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.