Abstract
Background: Both human and mouse allergic contact dermatitis (ACD) frequently demonstrates a combined type 1 and type 2 immune response. However, the relative importance of type 2 immunity in this setting has been incompletely understood yet. Objective: To explore an effector function of type 2 immunity in ACD with mixed type 1/type 2 immune response. Methods: Gene expression characteristics of contact hypersensitivity (CHS) model was examined by quantitative polymerase chain reaction. Cytokine profile of T cells was analyzed by flow cytometry. The involvement of type 2 immunity was assessed by antibody-mediated cytokine neutralization and cell depletion. The role of specific subset of cutaneous dendritic cells was evaluated using diphtheria toxin-induced cell-depleting mouse strains. Results: Oxazolone-induced CHS revealed a combination of type 1/type 2 gene expression. The severity of oxazolone-induced CHS was ameliorated by neutralization of IL-4 but not of IFN-γ, indicating that type 2 immunity plays a dominant effector function in this mixed type 1/type 2 model. Mechanistically, type 2 effector immunity was mounted by CD301b+Langeirn− dermal dendritic cells in part through thymic stromal lymphopoietin-interleukin 7 receptor alpha signaling-dependent manner. Conclusion: Our findings suggest the clinical rationale for targeting type 2 immunity as a relevant therapeutic strategy for the mixed immune phenotype of ACD.
Original language | English |
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Pages (from-to) | 122-131 |
Number of pages | 10 |
Journal | Journal of Dermatological Science |
Volume | 104 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2021 Nov |
Bibliographical note
Funding Information:This research was supported by a Basic Science Research Program through the National Research Foundation of Republic of Korea funded by the Ministry of Education ( 2019R1A6A1A03032869 ) and Ministry of Science and Information and Communications Technology ( 2019M3A9E8022135, 2020R1C1C1014513 ), by a Korea Health Technology R&D Project through the Korea Health Industry Development Institute funded by the Ministry of Health and Welfare ( HP20C0019, HP20C0171 ) and Korea Centers for Disease Control and Prevention ( 2020-ER6714-00 ), and by a faculty research grant of Yonsei University College of Medicine ( 6-2018-0046 ).
Publisher Copyright:
© 2021 Japanese Society for Investigative Dermatology
All Science Journal Classification (ASJC) codes
- Biochemistry
- Molecular Biology
- Dermatology