Cross-reactivity among non-specific lipid-transfer proteins from food and pollen allergenic sources
Copyright © 2014 Elsevier Ltd. All rights reserved..
Non-specific lipid-transfer proteins (nsLTPs) are a family of pan-allergens present in foods and pollen. However, sequence homology among them is limited. The objective of this study was to evaluate the IgE-mediated cross-reactivity between nsLTPs from different sources and evaluate the allergenic properties of LTPs from peach (Pru p 3) and pellitory (Par j 1/Par j 2), major fruit and pollen allergens. Both proteins were purified and characterised. Cross-reactivity studies among nsLTPs from different foods and pollens were performed by immunoblot inhibition using sera specific to peach or pellitory pollen. Cross-reactivity with Pru p 3 was observed in hazelnut, onion, corn, peanut and apple while in pollens, none of the extracts was inhibited with Par j 1/2. In conclusion, Pru p 3 did not inhibit LTPs from most fruits. Therefore, although Pru p 3 covers the largest number of epitopes, diagnosis with only this allergen may not detect all LTP sensitivities.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2014 |
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| Erschienen: |
2014 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:165 |
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| Enthalten in: |
Food chemistry - 165(2014) vom: 15. Dez., Seite 397-402 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Morales, María [VerfasserIn] |
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| Links: |
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| Themen: |
37341-29-0 |
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| Anmerkungen: |
Date Completed 01.12.2015 Date Revised 21.07.2014 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.foodchem.2014.05.101 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 500 | |a published: Print-Electronic | ||
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| 520 | |a Copyright © 2014 Elsevier Ltd. All rights reserved. | ||
| 520 | |a Non-specific lipid-transfer proteins (nsLTPs) are a family of pan-allergens present in foods and pollen. However, sequence homology among them is limited. The objective of this study was to evaluate the IgE-mediated cross-reactivity between nsLTPs from different sources and evaluate the allergenic properties of LTPs from peach (Pru p 3) and pellitory (Par j 1/Par j 2), major fruit and pollen allergens. Both proteins were purified and characterised. Cross-reactivity studies among nsLTPs from different foods and pollens were performed by immunoblot inhibition using sera specific to peach or pellitory pollen. Cross-reactivity with Pru p 3 was observed in hazelnut, onion, corn, peanut and apple while in pollens, none of the extracts was inhibited with Par j 1/2. In conclusion, Pru p 3 did not inhibit LTPs from most fruits. Therefore, although Pru p 3 covers the largest number of epitopes, diagnosis with only this allergen may not detect all LTP sensitivities | ||
| 650 | 4 | |a Journal Article | |
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