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Allergen‐specific immunotherapy induces regulatory T cells in an atopic dermatitis mouse model

机译:特异性免疫疗法诱导特应性皮炎小鼠模型中的调节性T细胞

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摘要

Abstract Background Several studies have demonstrated that allergen‐specific immunotherapy (SIT) can be an effective treatment for atopic dermatitis (AD). However, there is no relevant mouse model to investigate the mechanism and validate the novel modality of SIT in AD. Methods NC/Nga mice with induced AD‐like skin lesions received a subcutaneous injection of SIT (an extract of the house dust mite Dermatophagoides farinae [ DfE ]) or placebo for 5?weeks). Clinical and histological improvements of AD‐like skin lesions were examined. The responses of local and systemic regulatory T (Treg) cells, natural killer (NK) cells, B cells, serum immunoglobulin, and T‐cell cytokine response to DfE were evaluated to determine the underlying mechanism of the observed results. Results Specific immunotherapy significantly improved AD‐like skin lesions. Histologically, SIT decreased epidermal thickness and reduced inflammatory cell infiltration, especially that of eosinophils. Concomitantly, SIT suppressed Th2 responses and induced local infiltration of Treg cells into the skin. Also, SIT induced the immunoglobulin G4 and attenuated allergen‐specific immunoglobulin E. Furthermore, SIT induced local and systemic IL‐10‐producing Treg cells and regulatory NK cells. Conclusion We established a SIT model on AD mice and showed that our model correlates well with previous reports about SIT‐treated patients. Also, we revealed NK cells as another possible resource of IL‐10 in SIT. Based on our results, we suggest our SIT model as a useful tool to investigate mechanism of action of SIT and to validate the efficacy of new SIT modalities for the treatment of AD.
机译:摘要背景已经证明了过敏原特异性免疫疗法(SIT)可以是针对特应性皮炎(AD)的有效治疗方法。然而,没有相关的鼠标模型来调查机制并验证广告中的坐下的新型方式。方法NC / NGA小鼠具有诱导的Ad样皮肤病变,受到皮下注射坐的静脉注射(房屋粉尘皮肤病的提取物Farinae [dfe])或安慰剂5?周)。检查了临床和组织学改进的ad样皮肤病变。评价局部和全身调节T(Treg)细胞,天然杀伤(NK)细胞,B细胞,血清免疫球蛋白和T细胞对DFE的响应的响应,以确定所观察结果的潜在机制。结果特异性免疫疗法显着改善了adl样皮肤病变。组织学上,坐下的表皮厚度和降低的炎症细胞浸润,尤其是嗜酸性粒细胞。同时,静脉抑制TH2反应并诱导Treg细胞局部浸润到皮肤中。此外,静置诱导免疫球蛋白G4并减弱过敏原特异性免疫球蛋白E.此外,鉴于产生局部和全身性IL-10产生的Treg细胞和调节NK细胞。结论我们在广告小鼠中建立了一个坐在型模型,并表明我们的模型与先前关于临床治疗患者的报告相关联。此外,我们揭示了NK细胞作为IL-10的另一个可能的资源。根据我们的结果,我们建议我们的坐标模型作为调查坐垫行动机制的有用工具,并验证新坐在广告治疗的新坐下方式的疗效。

著录项

  • 来源
    《Allergy》 |2018年第9期|共11页
  • 作者单位

    Department of Dermatology &

    Cutaneous Biology Research InstituteYonsei University College of;

    Department of Dermatology &

    Cutaneous Biology Research InstituteYonsei University College of;

    Department of Dermatology &

    Cutaneous Biology Research InstituteYonsei University College of;

    Department of Dermatology &

    Cutaneous Biology Research InstituteYonsei University College of;

    Department of Dermatology &

    Cutaneous Biology Research InstituteYonsei University College of;

    Department of Internal MedicineYonsei University College of MedicineSeoul Korea;

    Department of Internal MedicineYonsei University College of MedicineSeoul Korea;

    Department of Dermatology &

    Cutaneous Biology Research InstituteYonsei University College of;

    Department of Dermatology &

    Cutaneous Biology Research InstituteYonsei University College of;

    Department of Internal MedicineYonsei University College of MedicineSeoul Korea;

    Department of Environmental Medical BiologyInstitute of Tropical MedicineSeoul Korea;

    Department of Internal MedicineYonsei University College of MedicineSeoul Korea;

    Department of Dermatology &

    Cutaneous Biology Research InstituteYonsei University College of;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 医学免疫学;
  • 关键词

    allergen‐specific immunotherapy; atopic dermatitis; Dermatophagoides farinae extract; regulatory T (Treg) cells;

    机译:特异性免疫疗法;特应性皮炎;皮肤科氏菌酪虫肝脏;调控性T(Treg)细胞;

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