CD8+ T cells are recruited early to allergen exposure sites in atopy patch test reactions in human atopic dermatitis Ana Hennino, PhD, Catherine Jean-Decoster,

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Presentation transcript:

CD8+ T cells are recruited early to allergen exposure sites in atopy patch test reactions in human atopic dermatitis Ana Hennino, PhD, Catherine Jean-Decoster, PhD, Françoise Giordano-Labadie, MD, Sabine Debeer, PhD, Béatrice Vanbervliet, PhD, Aurore Rozières, PhD, Anne-Marie Schmitt, MD, PhD, Jean-François Nicolas, MD, PhD Journal of Allergy and Clinical Immunology Volume 127, Issue 4, Pages 1064-1067 (April 2011) DOI: 10.1016/j.jaci.2010.11.022 Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

Fig 1 A, Summary of the 9 patients included in the study. ∗Positivity of the APT (according to European Task Force on Atopic Dermatitis consensus) at 9 and 48 hours as well as at 72 hours in the preselection of the study. The severity of the disease is defined as mild (<500 pg/mL) and moderate (>500 pg/mL) according to chemokine (C-C motif) ligand 17 (CCL17) serum level (∗∗normal range, approximately 200 pg/mL). The numbers of CD8+ (B) and CD3+ (C) T cells/mm2 in skin in control (ctrl) or HDM APT are represented at 9 and 48 hours. D, Comparison between the number of CD8+ T cells and eosinophils at 9 and 48 hours in HDM APT. Journal of Allergy and Clinical Immunology 2011 127, 1064-1067DOI: (10.1016/j.jaci.2010.11.022) Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

Fig 2 A, Immunostaining of HDM APT or control APT in patient 9 with anti-CD8, anti-CD3, and anti–granzyme B (GrzB). Original magnification is ×200. Inset is magnified view (×400). Quantification of the number of CD8+, CD3+, and granzyme B+ cells/mm2 in HDM compared with control (ctrl) in whole skin (B) and in epidermis (C). Journal of Allergy and Clinical Immunology 2011 127, 1064-1067DOI: (10.1016/j.jaci.2010.11.022) Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions

Fig 3 Quantification of the mRNA by the TaqMan low-density array technique for several molecules indicated in the figure. Total mRNA was extracted from APT to HDM and control. The mRNA was normalized to 3 housekeeping genes (hypoxanthine phosphoribosyltransferase [HPRT], ubiquitin, and actin). Results are expressed in fold increase in HDM APT compared with control (petrolatum). A, C, D, Fold increase of indicated molecules at 9 hours. B, Fold increase of CD8 and CD4 mRNA at 9 and 48 hours. CCL, Chemokine (C-C motif) ligand; GNLY, granulysine; GZMB, granzyme B; NK, natural killer; PRF1, perforine. Journal of Allergy and Clinical Immunology 2011 127, 1064-1067DOI: (10.1016/j.jaci.2010.11.022) Copyright © 2010 American Academy of Allergy, Asthma & Immunology Terms and Conditions