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Is the variability of nickel patch test reactivity over time associated with fluctuations in the systemic T-cell reactivity to nickel?
Stockholm University, Faculty of Science, The Wenner-Gren Institute , Immunology.
Stockholm University, Faculty of Science, The Wenner-Gren Institute , Immunology.
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2009 (English)In: British Journal of Dermatology, ISSN 0007-0963, E-ISSN 1365-2133, Vol. 161, no 1, 102-109 p.Article in journal (Refereed) Published
Abstract [en]

Background Patch test reactivity to nickel varies over time. To what extent this variation is associated with fluctuations in the T-cell reactivity to nickel is not known. Objectives Our aim was to investigate the relationship between variation over time in the patch test and the systemic T-cell reactivity to nickel. Methods Patients (n = 15) with a history of contact allergy to nickel were subjected to three consecutive patch tests at 3-month intervals, utilizing NiSO4 at 10 concentrations ranging from 0.0032% to 12.5%. Prior to each patch test, blood mononuclear cells were analysed for T-cell reactivity to nickel by interleukin (IL)-4 and IL-13 enzyme-linked immunospot assay. Results Eleven patients reacted positively in all three patch tests, two patients reacted in one or two tests and two remained negative. All 13 positive patients displayed variability over time, in terms of the lowest dose of nickel to which they responded. Also the cytokine response to nickel varied over time but the patients' mean cytokine response was positively correlated with their mean patch test reactivity (r(s) = 0.70, P < 0.01 for IL-4; r(s) = 0.78, P < 0.001 for IL-13). However, although the changes over time in patch test reactivity and the cytokine responses to nickel displayed a similar pattern in many patients, there was no significant correlation between the individuals' variation over time in vivo and in vitro. Conclusions The overall magnitude of the T-cell reactivity to nickel and the patch test reactivity are closely associated but fluctuations in the systemic T-cell reactivity cannot be singled out as the major cause of longitudinal variability in nickel patch test reactivity.

Place, publisher, year, edition, pages
2009. Vol. 161, no 1, 102-109 p.
Keyword [en]
contact allergy, cytokine, enzyme-linked immunospot assay, patch test
National Category
Immunology
Identifiers
URN: urn:nbn:se:su:diva-60063DOI: 10.1111/j.1365-2133.2009.09182.xISI: 000267128500014OAI: oai:DiVA.org:su-60063DiVA: diva2:433191
Note
authorCount :5Available from: 2011-08-09 Created: 2011-08-08 Last updated: 2017-12-08Bibliographically approved

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