Evaluation of IgE reactivity of active and thermally inactivated actinidin, a biomarker of kiwifruit allergy
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2012
Authors
Grozdanović, MilicaPopović, Milica M.
Polović, Natalija
Burazer, Lidija M.
Vučković, Olga
Atanasković-Marković, Marina
Lindner, Buko
Petersen, Arnd
Gavrović-Jankulović, Marija
Article (Published version)
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Actinidin, an abundant cysteine protease from kiwifruit, is a specific biomarker of isolated allergy to kiwifruit. This study evaluates the IgE-binding properties of biologically active and thermally inactivated actinidin. Employing two different activity assays (caseinolytic assay and zymogram with gelatin) we showed that actinidin obtained from kiwifruit extract under native conditions represents a mixture of inactive and active enzyme. The structural integrity of actinidin was confirmed by SDS-PAGE. Edman degradation, mass fingerprint and Western blot with polyclonal antibodies. Although it was capable of inducing positive skin prick test reactions, we failed to detect IgE reactivity of active actinidin in Western blot with patient sera. Thermally inactivated actinidin exhibited IgE reactivity both in vivo and in vitro, indicating that heat processed kiwifruit products may induce clinical reactivity. These findings imply that apart from the allergenic epitopes on its surface, actini...din also contains hidden epitopes inside the protein which become accessible to IgE upon thermal treatment. (C) 2011 Elsevier Ltd. All rights reserved.
Keywords:
Act d 1 / Actinidin / Food allergy / Cysteine protease / IgE reactivitySource:
Food and Chemical Toxicology, 2012, 50, 3-4, 1013-1018Publisher:
- Pergamon-Elsevier Science Ltd, Oxford
Funding / projects:
- Allergens, antibodies, enzymes and small physiologically important molecules: design, structure, function and relevance (RS-MESTD-Basic Research (BR or ON)-172049)
DOI: 10.1016/j.fct.2011.12.030
ISSN: 0278-6915
PubMed: 22227218
WoS: 000303284600081
Scopus: 2-s2.0-84856410784
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Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Grozdanović, Milica AU - Popović, Milica M. AU - Polović, Natalija AU - Burazer, Lidija M. AU - Vučković, Olga AU - Atanasković-Marković, Marina AU - Lindner, Buko AU - Petersen, Arnd AU - Gavrović-Jankulović, Marija PY - 2012 UR - https://cherry.chem.bg.ac.rs/handle/123456789/1286 AB - Actinidin, an abundant cysteine protease from kiwifruit, is a specific biomarker of isolated allergy to kiwifruit. This study evaluates the IgE-binding properties of biologically active and thermally inactivated actinidin. Employing two different activity assays (caseinolytic assay and zymogram with gelatin) we showed that actinidin obtained from kiwifruit extract under native conditions represents a mixture of inactive and active enzyme. The structural integrity of actinidin was confirmed by SDS-PAGE. Edman degradation, mass fingerprint and Western blot with polyclonal antibodies. Although it was capable of inducing positive skin prick test reactions, we failed to detect IgE reactivity of active actinidin in Western blot with patient sera. Thermally inactivated actinidin exhibited IgE reactivity both in vivo and in vitro, indicating that heat processed kiwifruit products may induce clinical reactivity. These findings imply that apart from the allergenic epitopes on its surface, actinidin also contains hidden epitopes inside the protein which become accessible to IgE upon thermal treatment. (C) 2011 Elsevier Ltd. All rights reserved. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Food and Chemical Toxicology T1 - Evaluation of IgE reactivity of active and thermally inactivated actinidin, a biomarker of kiwifruit allergy VL - 50 IS - 3-4 SP - 1013 EP - 1018 DO - 10.1016/j.fct.2011.12.030 ER -
@article{ author = "Grozdanović, Milica and Popović, Milica M. and Polović, Natalija and Burazer, Lidija M. and Vučković, Olga and Atanasković-Marković, Marina and Lindner, Buko and Petersen, Arnd and Gavrović-Jankulović, Marija", year = "2012", abstract = "Actinidin, an abundant cysteine protease from kiwifruit, is a specific biomarker of isolated allergy to kiwifruit. This study evaluates the IgE-binding properties of biologically active and thermally inactivated actinidin. Employing two different activity assays (caseinolytic assay and zymogram with gelatin) we showed that actinidin obtained from kiwifruit extract under native conditions represents a mixture of inactive and active enzyme. The structural integrity of actinidin was confirmed by SDS-PAGE. Edman degradation, mass fingerprint and Western blot with polyclonal antibodies. Although it was capable of inducing positive skin prick test reactions, we failed to detect IgE reactivity of active actinidin in Western blot with patient sera. Thermally inactivated actinidin exhibited IgE reactivity both in vivo and in vitro, indicating that heat processed kiwifruit products may induce clinical reactivity. These findings imply that apart from the allergenic epitopes on its surface, actinidin also contains hidden epitopes inside the protein which become accessible to IgE upon thermal treatment. (C) 2011 Elsevier Ltd. All rights reserved.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Food and Chemical Toxicology", title = "Evaluation of IgE reactivity of active and thermally inactivated actinidin, a biomarker of kiwifruit allergy", volume = "50", number = "3-4", pages = "1013-1018", doi = "10.1016/j.fct.2011.12.030" }
Grozdanović, M., Popović, M. M., Polović, N., Burazer, L. M., Vučković, O., Atanasković-Marković, M., Lindner, B., Petersen, A.,& Gavrović-Jankulović, M.. (2012). Evaluation of IgE reactivity of active and thermally inactivated actinidin, a biomarker of kiwifruit allergy. in Food and Chemical Toxicology Pergamon-Elsevier Science Ltd, Oxford., 50(3-4), 1013-1018. https://doi.org/10.1016/j.fct.2011.12.030
Grozdanović M, Popović MM, Polović N, Burazer LM, Vučković O, Atanasković-Marković M, Lindner B, Petersen A, Gavrović-Jankulović M. Evaluation of IgE reactivity of active and thermally inactivated actinidin, a biomarker of kiwifruit allergy. in Food and Chemical Toxicology. 2012;50(3-4):1013-1018. doi:10.1016/j.fct.2011.12.030 .
Grozdanović, Milica, Popović, Milica M., Polović, Natalija, Burazer, Lidija M., Vučković, Olga, Atanasković-Marković, Marina, Lindner, Buko, Petersen, Arnd, Gavrović-Jankulović, Marija, "Evaluation of IgE reactivity of active and thermally inactivated actinidin, a biomarker of kiwifruit allergy" in Food and Chemical Toxicology, 50, no. 3-4 (2012):1013-1018, https://doi.org/10.1016/j.fct.2011.12.030 . .