Tags

Type your tag names separated by a space and hit enter

Skin-homing, CLA+ memory T cells are activated in atopic dermatitis and regulate IgE by an IL-13-dominated cytokine pattern: IgG4 counter-regulation by CLA- memory T cells.
J Immunol. 1997 Nov 01; 159(9):4611-9.JI

Abstract

Cutaneous lymphocyte-associated Ag (CLA) is a skin-homing receptor displayed by memory/effector T cells recognizing skin-related allergens. Here we demonstrate that peripheral blood CLA+ CD45RO+ T cells in patients with atopic dermatitis (AD) are in vivo activated. They spontaneously proliferate and release an IL-13-dominated Th2 cytokine profile and are capable of inducing IgE in autologous B cells without further activation. The spontaneous cytokine release occurred within the first hour of culture and was not inhibited by cycloheximide or by other immunosuppressive drugs, indicating that cytokine transcription and translation had been completed in vivo. In contrast, the CLA- CD45RO+ T cells from the same patients and from nonatopic controls represented a resting memory T cell subset, secreted borderline quantities of cytokines, and induced IgG4. Polyclonal activation by the anti-CD2/anti-CD3/anti-CD28 mAb mixture generated distinct cytokine patterns in the two memory/effector T cell subsets. CLA+ T cells secreted Th2 cytokines with high IL-13 levels, and the CLA- subset mainly produced IFN-gamma. There was no difference in in vitro activated cytokine pattern between AD patients and nonatopic subjects. These results indicate that the CLA+ memory/effector T cells of AD patients are activated in vivo and play a pivotal role in allergic inflammation by production of IL-13 and induction of IgE Abs. In contrast, the CLA- resting memory T cell population may exert immunoprotective properties toward allergen by high IFN-gamma secretion and induction of IgG4.

Authors+Show Affiliations

Swiss Institute of Allergy and Asthma Research, Davos. SIAF@siaf.unizh.chNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

9379063

Citation

Akdis, M, et al. "Skin-homing, CLA+ Memory T Cells Are Activated in Atopic Dermatitis and Regulate IgE By an IL-13-dominated Cytokine Pattern: IgG4 Counter-regulation By CLA- Memory T Cells." Journal of Immunology (Baltimore, Md. : 1950), vol. 159, no. 9, 1997, pp. 4611-9.
Akdis M, Akdis CA, Weigl L, et al. Skin-homing, CLA+ memory T cells are activated in atopic dermatitis and regulate IgE by an IL-13-dominated cytokine pattern: IgG4 counter-regulation by CLA- memory T cells. J Immunol. 1997;159(9):4611-9.
Akdis, M., Akdis, C. A., Weigl, L., Disch, R., & Blaser, K. (1997). Skin-homing, CLA+ memory T cells are activated in atopic dermatitis and regulate IgE by an IL-13-dominated cytokine pattern: IgG4 counter-regulation by CLA- memory T cells. Journal of Immunology (Baltimore, Md. : 1950), 159(9), 4611-9.
Akdis M, et al. Skin-homing, CLA+ Memory T Cells Are Activated in Atopic Dermatitis and Regulate IgE By an IL-13-dominated Cytokine Pattern: IgG4 Counter-regulation By CLA- Memory T Cells. J Immunol. 1997 Nov 1;159(9):4611-9. PubMed PMID: 9379063.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Skin-homing, CLA+ memory T cells are activated in atopic dermatitis and regulate IgE by an IL-13-dominated cytokine pattern: IgG4 counter-regulation by CLA- memory T cells. AU - Akdis,M, AU - Akdis,C A, AU - Weigl,L, AU - Disch,R, AU - Blaser,K, PY - 1997/10/31/pubmed PY - 1997/10/31/medline PY - 1997/10/31/entrez SP - 4611 EP - 9 JF - Journal of immunology (Baltimore, Md. : 1950) JO - J. Immunol. VL - 159 IS - 9 N2 - Cutaneous lymphocyte-associated Ag (CLA) is a skin-homing receptor displayed by memory/effector T cells recognizing skin-related allergens. Here we demonstrate that peripheral blood CLA+ CD45RO+ T cells in patients with atopic dermatitis (AD) are in vivo activated. They spontaneously proliferate and release an IL-13-dominated Th2 cytokine profile and are capable of inducing IgE in autologous B cells without further activation. The spontaneous cytokine release occurred within the first hour of culture and was not inhibited by cycloheximide or by other immunosuppressive drugs, indicating that cytokine transcription and translation had been completed in vivo. In contrast, the CLA- CD45RO+ T cells from the same patients and from nonatopic controls represented a resting memory T cell subset, secreted borderline quantities of cytokines, and induced IgG4. Polyclonal activation by the anti-CD2/anti-CD3/anti-CD28 mAb mixture generated distinct cytokine patterns in the two memory/effector T cell subsets. CLA+ T cells secreted Th2 cytokines with high IL-13 levels, and the CLA- subset mainly produced IFN-gamma. There was no difference in in vitro activated cytokine pattern between AD patients and nonatopic subjects. These results indicate that the CLA+ memory/effector T cells of AD patients are activated in vivo and play a pivotal role in allergic inflammation by production of IL-13 and induction of IgE Abs. In contrast, the CLA- resting memory T cell population may exert immunoprotective properties toward allergen by high IFN-gamma secretion and induction of IgG4. SN - 0022-1767 UR - https://www.unboundmedicine.com/medline/citation/9379063/Skin_homing_CLA+_memory_T_cells_are_activated_in_atopic_dermatitis_and_regulate_IgE_by_an_IL_13_dominated_cytokine_pattern:_IgG4_counter_regulation_by_CLA__memory_T_cells_ L2 - http://www.jimmunol.org/cgi/pmidlookup?view=long&pmid=9379063 DB - PRIME DP - Unbound Medicine ER -