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Natural killer T cells expressing IFN-gamma and IL-4 in lesional skin of atopic eczema.
Allergy. 2009 Nov; 64(11):1681-4.A

Abstract

BACKGROUND

The inflammation of atopic eczema (AE) is orchestrated not only by T cells predominantly but also B cells, eosinophils and dendritic cells. Recently, a role of invariant natural killer T (NKT) cells has been reported in bronchial asthma and allergy. Natural killer T cells express a restricted repertoire of T-cell receptor alpha/beta and produce interferon (IFN)-gamma and/or interleukin (IL)-4 upon activation.

AIM OF THE STUDY

To determine the presence of NKT cells in lesional AE skin in comparison with other eczematous disorders and to analyse their cytokine expression.

METHODS

Immunofluorescence stainings were carried out using antibodies recognizing NKT cells, CD3+ and CD4+ cells, IFN-gamma and IL-4.

RESULTS

Natural killer T cells have been detected in small numbers in the majority of AE specimens as well as in atopy patch test (APT) reactions, allergic contact dermatitis (ACD) and irritant contact dermatitis (ICD). In AE, the proportion of NKT cells among CD3+ cells was approximately 5%. NKT cells expressed both IFN-gamma and IL-4 in AE, APT and ACD but predominantly IFN-gamma in ICD.

CONCLUSION

Natural killer T cells are part of the inflammatory infiltrate of AE as well as APT, ACD and ICD, suggesting a pathogenic role of NKT cells in eczematous skin disorders. The pattern of IFN-gamma and IL-4 cytokine expression by NKT cells varied depending on the type of eczematous disease.

Authors+Show Affiliations

Department of Dermatology, Inselspital, Bern University Hospital, Bern, Switzerland.No affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

19735490

Citation

Simon, D, et al. "Natural Killer T Cells Expressing IFN-gamma and IL-4 in Lesional Skin of Atopic Eczema." Allergy, vol. 64, no. 11, 2009, pp. 1681-4.
Simon D, Kozlowski E, Simon H. Natural killer T cells expressing IFN-gamma and IL-4 in lesional skin of atopic eczema. Allergy. 2009;64(11):1681-4.
Simon, D., Kozlowski, E., & Simon, H. (2009). Natural killer T cells expressing IFN-gamma and IL-4 in lesional skin of atopic eczema. Allergy, 64(11), 1681-4. https://doi.org/10.1111/j.1398-9995.2009.02097.x
Simon D, Kozlowski E, Simon H. Natural Killer T Cells Expressing IFN-gamma and IL-4 in Lesional Skin of Atopic Eczema. Allergy. 2009;64(11):1681-4. PubMed PMID: 19735490.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Natural killer T cells expressing IFN-gamma and IL-4 in lesional skin of atopic eczema. AU - Simon,D, AU - Kozlowski,E, AU - Simon,H, Y1 - 2009/09/07/ PY - 2009/9/9/entrez PY - 2009/9/9/pubmed PY - 2010/1/21/medline SP - 1681 EP - 4 JF - Allergy JO - Allergy VL - 64 IS - 11 N2 - BACKGROUND: The inflammation of atopic eczema (AE) is orchestrated not only by T cells predominantly but also B cells, eosinophils and dendritic cells. Recently, a role of invariant natural killer T (NKT) cells has been reported in bronchial asthma and allergy. Natural killer T cells express a restricted repertoire of T-cell receptor alpha/beta and produce interferon (IFN)-gamma and/or interleukin (IL)-4 upon activation. AIM OF THE STUDY: To determine the presence of NKT cells in lesional AE skin in comparison with other eczematous disorders and to analyse their cytokine expression. METHODS: Immunofluorescence stainings were carried out using antibodies recognizing NKT cells, CD3+ and CD4+ cells, IFN-gamma and IL-4. RESULTS: Natural killer T cells have been detected in small numbers in the majority of AE specimens as well as in atopy patch test (APT) reactions, allergic contact dermatitis (ACD) and irritant contact dermatitis (ICD). In AE, the proportion of NKT cells among CD3+ cells was approximately 5%. NKT cells expressed both IFN-gamma and IL-4 in AE, APT and ACD but predominantly IFN-gamma in ICD. CONCLUSION: Natural killer T cells are part of the inflammatory infiltrate of AE as well as APT, ACD and ICD, suggesting a pathogenic role of NKT cells in eczematous skin disorders. The pattern of IFN-gamma and IL-4 cytokine expression by NKT cells varied depending on the type of eczematous disease. SN - 1398-9995 UR - https://www.unboundmedicine.com/medline/citation/19735490/Natural_killer_T_cells_expressing_IFN_gamma_and_IL_4_in_lesional_skin_of_atopic_eczema_ L2 - https://doi.org/10.1111/j.1398-9995.2009.02097.x DB - PRIME DP - Unbound Medicine ER -