Evidence map›Paper›PMID 27129138›Full record

ArticleClinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology2016

Ana o 1 and Ana o 2 cashew allergens share cross-reactive CD4(+) T cell epitopes with other tree nuts.

L D Archila, I-T Chow, J W McGinty, A Renand, D Jeong, D Robinson, M L Farrington, W W Kwok

Abstract read
In one paragraph

Article in Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 36 citations in OpenAlex.

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  14. Pathogenic CD4The Journal of allergy and clinical immunology · 2017
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  16. IgE Cross-Reactivity of Cashew Nut Allergens.International archives of allergy and immunology
    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

8 authors at 2 institutions in 1 country.

L D ArchilaBenaroya Research Institute at Virginia Mason, Seattle, WA, USA.
I-T ChowBenaroya Research Institute at Virginia Mason, Seattle, WA, USA.
J W McGintyBenaroya Research Institute at Virginia Mason, Seattle, WA, USA.
A RenandBenaroya Research Institute at Virginia Mason, Seattle, WA, USA.
D JeongVirginia Mason Medical center, Seattle, WA, USA.
D RobinsonVirginia Mason Medical center, Seattle, WA, USA.
M L FarringtonVirginia Mason Medical center, Seattle, WA, USA.
W W KwokBenaroya Research Institute at Virginia Mason, Seattle, WA, USA.
Virginia Mason Medical Center · USBenaroya Research Institute

Funding

NIAID NIH HHS HHSN272200700046C
6 · The paper itself

Abstract

backgroundAllergies to cashew are increasing in prevalence, with clinical symptoms ranging from oral pruritus to fatal anaphylactic reaction. Yet, cashew-specific T cell epitopes and T cell cross-reactivity amongst cashew and other tree nut allergens in humans remain uncharacterized.

objectivesIn this study, we characterized cashew-specific T cell responses in cashew-allergic subjects and examined cross-reactivity of these cashew-specific cells towards other tree nut allergens.

methodsCD154 up-regulation assay was used to determine immunodominance hierarchy among cashew major allergens at the T cell level. The phenotype, magnitude and functionality of cashew-specific T cells were determined by utilizing ex vivo staining with MHC class II tetramers. Dual tetramer staining and proliferation experiments were used to determine cross-reactivity to other tree nuts.

resultsCD4(+) T cell responses were directed towards cashew allergens Ana o 1 and Ana o 2. Multiple Ana o 1 and Ana o 2 T cell epitopes were then identified. These epitopes elicited either TH 2 or TH 2/TH 17 responses in allergic subjects, which were either cashew unique epitope or cross-reactive epitopes. For clones that recognized the cross-reactive epitope, T cell clones responded robustly to cashew, hazelnut and/or pistachio but not to walnut.

conclusionsPhylogenetically diverse tree nut allergens can activate cashew-reactive T cells and elicit a TH 2-type response at an epitope-specific level. CLINICAL RELEVANCE: Lack of cross-reactivity between walnut and cashew suggests that cashew peptide immunotherapy approach may not be most effective for walnut.

Indexed as

AdolescentAdultAllergensAmino Acid SequenceAntigens, PlantBasophilsCD4-Positive T-LymphocytesChildCross ReactionsEpitope MappingEpitopes, T-LymphocyteFemaleHLA-DRB1 ChainsHumansImmunoglobulin EMaleAllergensAna o 1 protein, Anacardium occidentalAna o 2 allergen, cashewAntigens, PlantEpitopes, T-LymphocyteHLA-DRB1 ChainsImmunoglobulin EPlant ProteinsAna o 1Ana o 2cashewcross-reactivityepitopesfood allergyMHC class II tetramersT cellstree nuts

Identifiers

PMID27129138
PMCPMC5502816
OpenAlexW2344662455

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.