Background Subcutaneous specific immunotherapy has been demonstrated to be capable of inducing T-cell regulatory response.Interleukin-10 （IL-10） plays a crucial role in inducing allergen-specific tolerance.However t...Background Subcutaneous specific immunotherapy has been demonstrated to be capable of inducing T-cell regulatory response.Interleukin-10 （IL-10） plays a crucial role in inducing allergen-specific tolerance.However the reports of the changes of IL-10 in house dust mite （HDM）-specific immunotherapy were varied.The aim of this study was to evaluate the function of IL-10-secreting regulatory T cells in asthma children successfully treated with HDM immunotherapy.Methods Peripheral blood mononuclear cells （PBMCs） were isolated from 27 patients following 1.5--2 years of HDM-specific immunotherapy （SIT, SIT group） and from 27 matched treated asthmatic children allergic to HDM （asthmagroup）.After 48 hours of in vitro stimulation with HDM extracts, IL-10-secreting regulatory T cells were measured by four colour flow cytometry.Sera were tested for allergen-specific IgG4 and IgE using the Immuno CAP 100 assay.Results PBMCs from children undergoing immunotherapy following HDM extracts stimuli produced significantly more IL-10 compared with the asthma group.The frequency of iTreg cells and aTreg cells increased in SIT group after HDM stimulation, while it was not affected in the asthma group.Among the iTreg cells and aTreg cells, the frequency of CD4＋CD25-Foxp3-IL-10＋ Treg cells increased the most which was 2 times higher than that in unstimulated cultures in SIT group.The levels of HDM-specific IgG4 of SIT group was significiently higher compared with asthma group, but there was no correlation of the levels of HDM-specific IgG4 and IL-10 secreting Treg cells.Conclusions HDM-specific immunotherapy can successfully upregulate the frequency of IL-10-secreting Treg cells.CD4＋CD25-Foxp3-IL-10＋ Treg cells may play a key role in inducing the immune tolerance in HDM-specific immunotherapy.展开更多
Allergic rhinitis affect 10%-20% of pediatric population and it is caused by the Ig E-sensitization to environmental allergens, most importantly grass pollens and house dust mites. Allergic rhinitis can influence pati...Allergic rhinitis affect 10%-20% of pediatric population and it is caused by the Ig E-sensitization to environmental allergens, most importantly grass pollens and house dust mites. Allergic rhinitis can influence patient's daily activity severely and may precede the development of asthma, especially if it is not diagnosed and treated correctly. In addition to subcutaneous immunotherapy, sublingual immunotherapy(SLIT) represents the only treatment being potentially able to cure allergic respiratory diseases, by modulating the immune system activity. This review clearly summarizes and analyzes the available randomized, double-blinded, placebo-controlled trials, which aimed at evaluating the effectiveness and the safety of grass pollen and house dust mite SLIT for the specific treatment of pediatric allergic rhinitis. Our analysis demonstrates the good evidence supporting the efficacy of SLIT for allergic rhinitis to grass pollens in children, whereas trials regarding pediatric allergic rhinitis to house dust mites present lower quality, although several studies supported its usefulness.展开更多
目的:观察舌下免疫治疗(SLIT)疗效与尘螨组分sIgE和sIgG4水平变化的相关性。方法:回顾性分析2018年4月~2021年10月就诊于某院过敏反应科并行SLIT的过敏性鼻炎患儿(n=37),根据治疗1年后症状和药物综合评分(CSMS)分为控制稳定组(n=25)和...目的:观察舌下免疫治疗(SLIT)疗效与尘螨组分sIgE和sIgG4水平变化的相关性。方法:回顾性分析2018年4月~2021年10月就诊于某院过敏反应科并行SLIT的过敏性鼻炎患儿(n=37),根据治疗1年后症状和药物综合评分(CSMS)分为控制稳定组(n=25)和控制不稳定组(n=12),比较两组患儿9种重要尘螨致敏蛋白组分(Derp1/Derf1、Derp2/Derf2、Derp5、Derp7、Derp10、Derp21和Derp23)sIgE和sIgG4的水平变化。结果:Derp1/Derf1和Derp2/Derf2为主要致敏蛋白组分,其治疗前sIgE阳性率为86.5%~94.6%,其中Der p 2的sIgE浓度高于Derp1(P<0.0001)、Derp5(P<0.001)、Derp7(P<0.001)、Derp10(P<0.001)、Derp21(P<0.01);Derf2的sIgE浓度高于Derf1(P<0.0001)、Derp5(P<0.0001)、Derp7(P<0.0001)、Der p 10(P<0.0001)、Der p 21(P<0.0001)和Der p 23(P<0.01)。治疗前Der f 2的sIgG4浓度高于其他组分(P<0.0001),控制不稳定组中Der f 1的sIgG4阳性率(33.3%)高于控制稳定组(4.0%,P<0.05),且控制不稳定组中Derf1和Derp10的sIgG4浓度高于控制稳定组(P<0.05)。治疗1年后,控制稳定组患儿Der f 1和Der p 2的sIgG4水平高于治疗前(P<0.05)。结论:尘螨致敏过敏性鼻炎患儿应用SLIT治疗后,Der f 1和Der p 2的sIgG4浓度升高明显,提示SLIT疗效较好,为临床评估SLIT疗效提供了线索。展开更多
文摘Background Subcutaneous specific immunotherapy has been demonstrated to be capable of inducing T-cell regulatory response.Interleukin-10 （IL-10） plays a crucial role in inducing allergen-specific tolerance.However the reports of the changes of IL-10 in house dust mite （HDM）-specific immunotherapy were varied.The aim of this study was to evaluate the function of IL-10-secreting regulatory T cells in asthma children successfully treated with HDM immunotherapy.Methods Peripheral blood mononuclear cells （PBMCs） were isolated from 27 patients following 1.5--2 years of HDM-specific immunotherapy （SIT, SIT group） and from 27 matched treated asthmatic children allergic to HDM （asthmagroup）.After 48 hours of in vitro stimulation with HDM extracts, IL-10-secreting regulatory T cells were measured by four colour flow cytometry.Sera were tested for allergen-specific IgG4 and IgE using the Immuno CAP 100 assay.Results PBMCs from children undergoing immunotherapy following HDM extracts stimuli produced significantly more IL-10 compared with the asthma group.The frequency of iTreg cells and aTreg cells increased in SIT group after HDM stimulation, while it was not affected in the asthma group.Among the iTreg cells and aTreg cells, the frequency of CD4＋CD25-Foxp3-IL-10＋ Treg cells increased the most which was 2 times higher than that in unstimulated cultures in SIT group.The levels of HDM-specific IgG4 of SIT group was significiently higher compared with asthma group, but there was no correlation of the levels of HDM-specific IgG4 and IL-10 secreting Treg cells.Conclusions HDM-specific immunotherapy can successfully upregulate the frequency of IL-10-secreting Treg cells.CD4＋CD25-Foxp3-IL-10＋ Treg cells may play a key role in inducing the immune tolerance in HDM-specific immunotherapy.
文摘Allergic rhinitis affect 10%-20% of pediatric population and it is caused by the Ig E-sensitization to environmental allergens, most importantly grass pollens and house dust mites. Allergic rhinitis can influence patient's daily activity severely and may precede the development of asthma, especially if it is not diagnosed and treated correctly. In addition to subcutaneous immunotherapy, sublingual immunotherapy(SLIT) represents the only treatment being potentially able to cure allergic respiratory diseases, by modulating the immune system activity. This review clearly summarizes and analyzes the available randomized, double-blinded, placebo-controlled trials, which aimed at evaluating the effectiveness and the safety of grass pollen and house dust mite SLIT for the specific treatment of pediatric allergic rhinitis. Our analysis demonstrates the good evidence supporting the efficacy of SLIT for allergic rhinitis to grass pollens in children, whereas trials regarding pediatric allergic rhinitis to house dust mites present lower quality, although several studies supported its usefulness.
文摘目的:观察舌下免疫治疗(SLIT)疗效与尘螨组分sIgE和sIgG4水平变化的相关性。方法:回顾性分析2018年4月~2021年10月就诊于某院过敏反应科并行SLIT的过敏性鼻炎患儿(n=37),根据治疗1年后症状和药物综合评分(CSMS)分为控制稳定组(n=25)和控制不稳定组(n=12),比较两组患儿9种重要尘螨致敏蛋白组分(Derp1/Derf1、Derp2/Derf2、Derp5、Derp7、Derp10、Derp21和Derp23)sIgE和sIgG4的水平变化。结果:Derp1/Derf1和Derp2/Derf2为主要致敏蛋白组分,其治疗前sIgE阳性率为86.5%~94.6%,其中Der p 2的sIgE浓度高于Derp1(P<0.0001)、Derp5(P<0.001)、Derp7(P<0.001)、Derp10(P<0.001)、Derp21(P<0.01);Derf2的sIgE浓度高于Derf1(P<0.0001)、Derp5(P<0.0001)、Derp7(P<0.0001)、Der p 10(P<0.0001)、Der p 21(P<0.0001)和Der p 23(P<0.01)。治疗前Der f 2的sIgG4浓度高于其他组分(P<0.0001),控制不稳定组中Der f 1的sIgG4阳性率(33.3%)高于控制稳定组(4.0%,P<0.05),且控制不稳定组中Derf1和Derp10的sIgG4浓度高于控制稳定组(P<0.05)。治疗1年后,控制稳定组患儿Der f 1和Der p 2的sIgG4水平高于治疗前(P<0.05)。结论:尘螨致敏过敏性鼻炎患儿应用SLIT治疗后,Der f 1和Der p 2的sIgG4浓度升高明显,提示SLIT疗效较好,为临床评估SLIT疗效提供了线索。
