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Non-proteolytic aer...
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Österlund, Camilla,1978-Umeå universitet,Lungmedicin
(author)
Non-proteolytic aeroallergens from mites, cat and dog exert adjuvant-like activation of bronchial epithelial cells
- Article/chapterEnglish2011
Publisher, publication year, extent ...
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2010-12-22
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S. Karger AG,2011
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:umu-39542
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https://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-39542URI
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https://doi.org/10.1159/000318743DOI
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http://kipublications.ki.se/Default.aspx?queryparsed=id:122656720URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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Background: Exposure to seasonal or indoor allergens may cause sensitisation and development of allergic airway diseases. We have previously demonstrated that the non-proteolytic major house dust mite (HDM) allergen Der p 2 stimulates pro-inflammatory responses in bronchial epithelial cells. We aimed to determine if other clinically relevant non-proteolytic aeroallergens originating from HDMs, storage mites, cat, dog, birch and timothy also activate respiratory epithelial cells. Methods: Cultures of human bronchial epithelial cell line BEAS-2B, normal human bronchial epithelial cells and alveolar epithelial cell line A549 were exposed to recombinant (r)Der p 2, natural (n)Der f 2, rEur m 2, rLep d 2, rFel d 1, nFel d 1, rCan f 2, rBet v 1 or rPhl p 5a. A panel of secreted mediators and expression of cell adhesion receptors involved in recruitment, survival and adhesion of inflammatory cells in asthmatic airways was assessed. Results: The mite allergens rDer p 2, nDer f 2, rEur m 2 and rLep d 2 as well as the cat and dog allergens rFel d 1, nFel d 1 and rCan f 2 induced granulocyte colony-stimulating factor, granulocyte-macrophage colony-stimulating factor, interleukin (IL)-6, IL-8, monocyte-chemotactic protein-1 and macrophage inflammatory protein-3α secretion from bronchial epithelial cells as well as surface expression of intracellular adhesion molecule-1. The pollen allergens rBet v 1 and rPhl p 5a from birch and timothy did not activate the cells. None of the studied allergens affected the alveolar epithelial cells. Conclusion: These results show that both mite and structurally unrelated cat and dog allergens can activate respiratory epithelial cells by adjuvant-like protease-independent mechanisms.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Grönlund, HansKarolinska Institutet
(author)
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Gafvelin, GuroKarolinska Institutet
(author)
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Bucht, AndersUmeå universitet,Lungmedicin(Swepub:umu)anbu0006
(author)
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Umeå universitetLungmedicin
(creator_code:org_t)
Related titles
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In:International Archives of Allergy and Immunology: S. Karger AG155:2, s. 111-1181018-24381423-0097
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