{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T00:57:00Z","timestamp":1760057820909,"version":"build-2065373602"},"reference-count":33,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2025,2,25]],"date-time":"2025-02-25T00:00:00Z","timestamp":1740441600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Antibodies"],"abstract":"<jats:p>Background:\u00a0Anisakis allergy has been increasing, and the diagnosis of it is based on specific serum IgE detection. Recently, the IgE-crosslinking-induced luciferase expression (EXiLE) test has been proposed as convenient tool for detecting functionally specific IgE antibodies. Here, we investigated if the EXiLE test is a useful tool in the diagnosis of Anisakis allergy. Methods: HuRa-40 cells were sensitized using six serum types from three patients with Anisakis allergy at the time of the initial test and after 6\u201312 months. Thereafter, various concentrations of Anisakis worm protein (AWP) were reacted to measure the degree of EXiLE. The degree of EXiLE was compared with Anisakis-specific IgE antibody levels measured by the CAP-FEIA method, and the IgE-antibody-binding protein profile was examined using IgE immunoblotting. Results: The results showed a good correlation between the CAP-FEIA values and EXiLE obtained with 5 \u03bcg\/mL of AWP (R = 0.91, p &lt; 0.01), a strong response on IgE immunoblotting in the region containing proteins weighing \u226540,000 Da. In addition, after the onset of Anisakis allergy, the degree of serum EXiLE decreased in two patients whose Anisakis-specific IgE antibody levels decreased over time but increased in one patient whose specific IgE antibodies increased after repeated antigen sensitization. Conclusions: Based on these data, the AWP-induced EXiLE test seemed to be useful and convenient for the diagnosis of Anisakis allergy, supplementing specific IgE determinants. After allergy onset, the use of this method to observe changes in specific IgE levels over time may be important for predicting the risk of recurrence.<\/jats:p>","DOI":"10.3390\/antib14010019","type":"journal-article","created":{"date-parts":[[2025,2,25]],"date-time":"2025-02-25T12:01:17Z","timestamp":1740484877000},"page":"19","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["IgE-Crosslinking-Induced Luciferase Expression Test as a Sensitive Indicator of Anisakis Allergy"],"prefix":"10.3390","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0965-0451","authenticated-orcid":false,"given":"Haruyo","family":"Akiyama","sequence":"first","affiliation":[{"name":"Division of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Teikyo Heisei University, Nakano-ku, Tokyo 164-8530, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masashi","family":"Niwa","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Medicine, Okayama University of Sciences, Imabari 794-8555, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chisato","family":"Kurisaka","sequence":"additional","affiliation":[{"name":"Division of Pharmacotherapeutics, Faculty of Pharmaceutical Sciences, Teikyo Heisei University, Nakano-ku, Tokyo 164-8530, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3234-652X","authenticated-orcid":false,"given":"Yuto","family":"Hamada","sequence":"additional","affiliation":[{"name":"Clinical Research Center for Allergy and Rheumatology, NHO Sagamihara National Hospital, Sagamihara 252-0392, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9913-4524","authenticated-orcid":false,"given":"Yuma","family":"Fukutomi","sequence":"additional","affiliation":[{"name":"Clinical Research Center for Allergy and Rheumatology, NHO Sagamihara National Hospital, Sagamihara 252-0392, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-1112-5180","authenticated-orcid":false,"given":"Reiko","family":"Teshima","sequence":"additional","affiliation":[{"name":"Faculty of Veterinary Medicine, Okayama University of Sciences, Imabari 794-8555, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,2,25]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1047","DOI":"10.1016\/j.ijpara.2013.08.001","article-title":"Anisakis\u2014A food-borne parasite that triggers allergic host defences","volume":"43","author":"Nieuwenhuizen","year":"2013","journal-title":"Int. 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