北京大学学报（医学版）2024，Vol.56Issue(5)：756-762,7.DOI:10.19723/j.issn.1671-167X.2024.05.002
卵清蛋白诱导的特应性皮炎小鼠模型中白细胞介素-25的作用及其调控意义
The role and its regulatory significance of interleukin-25 in ovalbumin induced atopic dermatitis of mice
摘要
Abstract
Objective:To investigate the effect of interleukin-25(IL-25)on ovalbumin(OVA)in-duced atopic dermatitis of mice,and the significance of regulating IL-25.Methods:In this study,90 healthy male 6-week-old specific pathogen free(SPF)BALB/c mice were divided into 6 groups(15 in each group):① subcutaneous injection of phosphate buffered saline(PBS)group(normal control group);② subcutaneous injection of mouse IL-25 group(IL-25 group);③ subcutaneous injection of anti-mouse IL-25 monoclonal antibody(anti-IL-25 group),each group received subcutaneous injection once a day for 1 week,2 weeks apart,repeated daily subcutaneous injections for 1 week,2 weeks apart,and repeated daily subcutaneous injections for 1 week,for a total of 7 weeks;④OVA treated group(model group);⑤ OVA treated and IL-25 subcutaneous injection group(IL-25 treated dermatitis group);⑥ OVA treated and anti-mouse IL-25 monoclonal antibody injection group(anti-IL-25 treated dermatitis group).The ⑤ and ⑥ groups in the process of treatment with OVA,IL-25 or anti-IL-25 anti-body were given in the same way as the ② and ③ groups.Scratching behavior and skin performance of the mice were recorded during the seven-week-treatment.Twenty four hours after the final treatment,blood was taken from the mouse heart,and the serum was separated to detect the total IgE,IL-4,IL-5,IL-13,etc.The skin samples of the treatment sites were used for hematoxylin-eosin(HE)staining,im-munohistochemistry,real-time PCR and Western blot detections.A single factor(ANOVA)analysis of variance was used to compare the differences in various indicators between the groups.Results:The fre-quency of scratches in the IL-25 treated dermatitis group was higher than that in the model group,and the scratching behavior of the anti-IL-25 treated dermatitis group was significantly lower than that in the model group.The appearance of atopic dermatitis,thickening of the epidermis and the degree of dermal inflammation in the IL-25 treated dermatitis group were more serious than those in the model group and the anti-IL-25 treated dermatitis group.The levels of serum IgE,IL-4,IL-5,and IL-13 in the IL-25 treated dermatitis group were significantly higher than that in the model group and the anti-IL-25 treated dermatitis group.There were significantly more CD4+T cells in the dermis of IL-25 treated dermatitis group than that in the anti-IL-25 treated dermatitis group.The expression levels of filaggrin and defensinβ2 proteins in the IL-25 treated dermatitis group were significantly lower than those in the model group and the anti-IL-25 treated dermatitis group.Conclusion:In the OVA induced atopic dermatitis mice model,IL-25 can significantly promote the damage of the epidermal barrier function and aggravate the OVA-induced dermatitis.Antagonizing IL-25 can alleviate OVA induced dermatitis to a certain extent.关键词
特应性皮炎/白细胞介素-25/卵清蛋白/动物疾病模型Key words
Atopic dermatitis/Interleukin-25/Ovalbumin/Animal disease models分类
医药卫生引用本文复制引用
金江,陈雪,赵琰,贾军,张建中..卵清蛋白诱导的特应性皮炎小鼠模型中白细胞介素-25的作用及其调控意义[J].北京大学学报（医学版）,2024,56(5):756-762,7.基金项目
国家自然科学基金(81502720)Supported by the National Natural Science Foundation of China(81502720) （81502720）
