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Mehrdana F, Lavilla M, Kania PW, Pardo MÁ, Audicana MT, Longo N, Buchmann K. Evidence of IgE-Mediated Cross-Reactions between Anisakis simplex and Contracaecum osculatum Proteins. Pathogens 2021; 10:pathogens10080950. [PMID: 34451414 PMCID: PMC8399947 DOI: 10.3390/pathogens10080950] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 11/17/2022] Open
Abstract
Fish consumers may develop allergic reactions following the ingestion of fish products containing nematode larvae within the genus Anisakis. Sensitized patients may cross-react with proteins from insects, mites and mollusks, leading to allergic reactions even in the absence of the offending food. Potential cross-reactivity in Anisakis-allergic patients with larval proteins from other zoonotic parasites present in freshwater and sea fish should be investigated due to an increasing occurrence in certain fish stocks, particularly Contracaecum osculatum. In this work, we evaluated IgE-cross reactions by in vivo (skin prick tests with parasites extracts) and in vitro methods (IgE-ELISA and IgE-immunoblot). In vivo skin prick tests (SPT) proved the reactivity of Anisakis-sensitized patients when exposed to C. osculatum antigens. Sera from Anisakis-sensitized patients confirmed the reaction with somatic antigens (SA) and excretory/secretory proteins (ES) from C. osculatum. Only anecdotal responses were obtained from other freshwater worm parasites. Consequently, it is suggested that Anisakis-sensitized humans, especially patients with high levels of specific anti-Anisakis antibodies, may react to C. osculatum proteins, possibly due to IgE-mediated cross-reactivity.
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Affiliation(s)
- Foojan Mehrdana
- Laboratory of Aquatic Pathobiology, Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark; (F.M.); (P.W.K.)
| | - María Lavilla
- AZTI-BRTA, Food Research, Parque Tecnológico de Bizkaia, Astondo Bidea-Edificio 609, E-48160 Derio, Spain; (M.L.); (M.Á.P.)
| | - Per Walter Kania
- Laboratory of Aquatic Pathobiology, Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark; (F.M.); (P.W.K.)
| | - Miguel Ángel Pardo
- AZTI-BRTA, Food Research, Parque Tecnológico de Bizkaia, Astondo Bidea-Edificio 609, E-48160 Derio, Spain; (M.L.); (M.Á.P.)
| | - María Teresa Audicana
- Allergy Department, Araba Integrated Health Organization, Bioaraba.Osakidetza, Basque Health Service, Jose Atxotegui s/n, E-01009 Vitoria, Spain; (M.T.A.); (N.L.)
| | - Natividad Longo
- Allergy Department, Araba Integrated Health Organization, Bioaraba.Osakidetza, Basque Health Service, Jose Atxotegui s/n, E-01009 Vitoria, Spain; (M.T.A.); (N.L.)
| | - Kurt Buchmann
- Laboratory of Aquatic Pathobiology, Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870 Frederiksberg C, Denmark; (F.M.); (P.W.K.)
- Correspondence: ; Tel.: +45-35-33-27-00
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