Abstract
Background: Sea urchin roe can cause anaphylactic reactions the first time they are consumed; therefore, careful clinical attention should be paid to their effects. However, no previous study has examined the allergens in sea urchin roe using sera from more than one patient. We attempted to identify sea urchin allergens using sera from 5 patients with sea urchin allergies. Methods: We enrolled 5 patients with relevant medical histories, positive results on a skin prick test and/or a food challenge test, and high levels of sea urchinspecific IgE in an enzyme-linked immunosorbent assay. We performed SDS-PAGE, immunoblotting, immunoblot inhibition, and N-terminal amino acid sequence detection. Results: Ten protein bands ranging from 18 to 170 kDa were detected in more than 2 patients' sera. In immunoblotting, the protein band for the 170-kDa major yolk protein was recognized by 4 of the 5 sera. Furthermore, the reaction between IgE and the protein band for egg cortical vesicle protein (18 kDa) was inhibited by the addition of salmon roe extract. Conclusion: Major yolk protein was confirmed to beone of the main allergens in sea urchin roe. In addition, egg cortical vesicle protein (18 kDa) was demonstrated to be an important protein for cross-reactivity with salmon roe.
| Original language | English |
|---|---|
| Pages (from-to) | 222-227 |
| Number of pages | 6 |
| Journal | International Archives of Allergy and Immunology |
| Volume | 164 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 07-11-2014 |
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All Science Journal Classification (ASJC) codes
- Immunology and Allergy
- Immunology
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Allergen analysis of sea urchin roe using sera from five patients. / Tanaka, Kenichi; Kondo, Yasuto; Inuo, Chisato; Nakajima, Yoichi; Tsuge, Ikuya; Doi, Satoru; Yanagihara, Shigeto; Yoshikawa, Tetsushi; Urisu, Atsuo.
In: International Archives of Allergy and Immunology, Vol. 164, No. 3, 07.11.2014, p. 222-227.Research output: Contribution to journal › Article
TY - JOUR
T1 - Allergen analysis of sea urchin roe using sera from five patients
AU - Tanaka, Kenichi
AU - Kondo, Yasuto
AU - Inuo, Chisato
AU - Nakajima, Yoichi
AU - Tsuge, Ikuya
AU - Doi, Satoru
AU - Yanagihara, Shigeto
AU - Yoshikawa, Tetsushi
AU - Urisu, Atsuo
PY - 2014/11/7
Y1 - 2014/11/7
N2 - Background: Sea urchin roe can cause anaphylactic reactions the first time they are consumed; therefore, careful clinical attention should be paid to their effects. However, no previous study has examined the allergens in sea urchin roe using sera from more than one patient. We attempted to identify sea urchin allergens using sera from 5 patients with sea urchin allergies. Methods: We enrolled 5 patients with relevant medical histories, positive results on a skin prick test and/or a food challenge test, and high levels of sea urchinspecific IgE in an enzyme-linked immunosorbent assay. We performed SDS-PAGE, immunoblotting, immunoblot inhibition, and N-terminal amino acid sequence detection. Results: Ten protein bands ranging from 18 to 170 kDa were detected in more than 2 patients' sera. In immunoblotting, the protein band for the 170-kDa major yolk protein was recognized by 4 of the 5 sera. Furthermore, the reaction between IgE and the protein band for egg cortical vesicle protein (18 kDa) was inhibited by the addition of salmon roe extract. Conclusion: Major yolk protein was confirmed to beone of the main allergens in sea urchin roe. In addition, egg cortical vesicle protein (18 kDa) was demonstrated to be an important protein for cross-reactivity with salmon roe.
AB - Background: Sea urchin roe can cause anaphylactic reactions the first time they are consumed; therefore, careful clinical attention should be paid to their effects. However, no previous study has examined the allergens in sea urchin roe using sera from more than one patient. We attempted to identify sea urchin allergens using sera from 5 patients with sea urchin allergies. Methods: We enrolled 5 patients with relevant medical histories, positive results on a skin prick test and/or a food challenge test, and high levels of sea urchinspecific IgE in an enzyme-linked immunosorbent assay. We performed SDS-PAGE, immunoblotting, immunoblot inhibition, and N-terminal amino acid sequence detection. Results: Ten protein bands ranging from 18 to 170 kDa were detected in more than 2 patients' sera. In immunoblotting, the protein band for the 170-kDa major yolk protein was recognized by 4 of the 5 sera. Furthermore, the reaction between IgE and the protein band for egg cortical vesicle protein (18 kDa) was inhibited by the addition of salmon roe extract. Conclusion: Major yolk protein was confirmed to beone of the main allergens in sea urchin roe. In addition, egg cortical vesicle protein (18 kDa) was demonstrated to be an important protein for cross-reactivity with salmon roe.
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UR - http://www.scopus.com/inward/citedby.url?scp=84906004959&partnerID=8YFLogxK
U2 - 10.1159/000365728
DO - 10.1159/000365728
M3 - Article
VL - 164
SP - 222
EP - 227
JO - International Archives of Allergy and Immunology
JF - International Archives of Allergy and Immunology
SN - 1018-2438
IS - 3
ER -