Volume 28, Issue 8 pp. 1079-1086
Original Article

The Imbalance of Th17 cells and CD4+CD25highFoxp3+ Treg cells in patients with atopic dermatitis

L. Ma

L. Ma

Department of Dermatology, Binzhou Medical University Hospital, Binzhou, China

L. Ma, H.-B. Xue and X.-H. Guan contributed equally to this work.Search for more papers by this author
H.-B. Xue

Corresponding Author

H.-B. Xue

Department of Endocrinology and Metabolism, Binzhou Medical University Hospital, Binzhou, China

L. Ma, H.-B. Xue and X.-H. Guan contributed equally to this work.Correspondence: H.-B. Xue. E-mail: [email protected]Search for more papers by this author
X.-H. Guan

X.-H. Guan

State Key Department of Dermatology, Hospital of China Medical University, Shenyang, China

L. Ma, H.-B. Xue and X.-H. Guan contributed equally to this work.Search for more papers by this author
C.-M. Shu

C.-M. Shu

Department of Dermatology, Binzhou Medical University Hospital, Binzhou, China

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F. Wang

F. Wang

Department of Dermatology, Binzhou Medical University Hospital, Binzhou, China

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J.-H. Zhang

J.-H. Zhang

Department of Dermatology, Binzhou Medical University Hospital, Binzhou, China

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R.-Z. An

R.-Z. An

Department of Dermatology, Binzhou Medical University Hospital, Binzhou, China

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First published: 07 November 2013
Citations: 69

Conflicts of interest

None declared.

Funding sources

None declared.

Abstract

Background

Th17/Treg imbalance is involved in several autoimmune, inflammatory and allergic reactions. Nevertheless, the possible contribution of Th17/Treg imbalance in atopic dermatitis (AD) remains unknown.

Objective

To explore the possible role of Th17/Treg imbalance in AD.

Methods

Th17 and Treg cells percentage in peripheral blood mononuclear cells (PBMCs) and skin specimens, specific transcription factor retinoic acid-related orphan receptor (ROR)γt and Foxp3 mRNA levels in PBMCs, as well as Th17- and Treg-related cytokines mRNA levels in PBMCs, serum concentrations, and expression levels in PBMCs culture supernatant after recombinant Dermatophagoides pteronyssinus antigen stimulation were detected in AD patients. Controls included patients with psoriasis, allergic contact dermatitis (ACD) and healthy donors.

Results

Th17 cells percentage, RORγt, IL-17 and IL-23 levels in peripheral circulation of AD patients were significantly higher than those in ACD patients and healthy controls, but lower than those of psoriasis patients. Treg cells percentage, Foxp3 and TGF-β mRNA levels were reduced in AD patients compared with healthy controls, while there were no significant differences among AD, ACD and psoriasis patients. Th17 cells percentage, IL-17 and IL-23 levels were increased, while Treg cells percentage and TGF-β level were decreased in AD lesion and PBMCs culture supernatant respectively. There was a negative association between Th17 and Treg cells percentage in AD patients. AD severity score positively correlated with Th17 cells percentage and Th17/Treg ratio, while negatively correlated with Treg cells percentage. Serum IgE levels positively correlated with Th17/Treg ratio.

Conclusion

In AD, there exists an immune imbalance in Th17 and Treg cells, which may contribute to its pathogenesis and development.

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