实验动物与比较医学 ›› 2018, Vol. 38 ›› Issue (4): 267-271.DOI: 10.3969/j.issn.1674-5817.2018.04.005

• 论著 • 上一篇    下一篇

小鼠特应性皮炎建模方法的改进

纪莲1, 马铁2, 狄正鸿3, 刘冬妍1   

  1. 中国医科大学附属盛京医院 1.实验研究中心,沈阳 110004; 2.病理科,沈阳 110004; 3.皮肤科,沈阳 110004
  • 收稿日期:2018-03-20 出版日期:2018-08-25 发布日期:2021-03-01
  • 作者简介:纪莲(1982-),女,助理实验师。E-mail:37243816@qq.com
  • 基金资助:
    国家自然科学基金(81301366)

Establishment of Atopic Dermatitis Mouse Model

JI Lian1, MA Tie2, DI Zheng-hong3, Liu Dong-yan1   

  1. 1. Department of Medical Research Center; 2. Department of Pathology Department; 3. Department of Dermatology of Shengjing Hospital,China Medical University,Shenyang 110004,China
  • Received:2018-03-20 Online:2018-08-25 Published:2021-03-01

摘要: 目的 用卵清蛋白(OVA)致敏小鼠特应性皮炎(atopic dermatitis,AD),建立一种更为简便、稳定的小鼠AD模型。方法 采用6周龄BALB/c雌性小鼠,第1日腹腔注射200 µg/mL OVA溶液0.5 mL系统致敏,第6日皮下注射100 µg/mL OVA溶液0.5 mL再次致敏。并于第18、39日背部局部贴含50 µL,1 000 µg/mLOVA的1.5 cm2的无菌纱布,每日更换,分2次局部致敏,各持续1周。第46日,观察小鼠皮肤及其病理学改变,酶联免疫吸附法(ELISA)测定血清中总IgE水平,统计成模率及动物死亡情况。结果 AD模型小鼠皮肤肉眼可见潮红、脱屑、偶见结痂等皮炎改变;病理可见表皮细胞增厚,过度角化,真皮内淋巴细胞等浸润。模型组小鼠血清总IgE水平为(6 296.17±1 021.28) ng/L,显著高于空白对照组的(1 280.97±501.24) ng/L和生理盐水组的(1 327.57±629.71) ng/L(均P<0.01)。成模率为94%,死亡率6%。结论 该方法可以成功建立小鼠AD模型,造模方法简单,成模率高。

关键词: 小鼠模型, 特异性皮炎(AD), 卵清蛋白(OVA)

Abstract: Objective To explore a novel method for atopic dermatitis (AD) model in mouse induced by ovalbumin (OVA).Method The 6-weeks BALB/c female mice were subcutaneously injected with 0.5 mL of 200 µg/mL OVA solution on 1st day and subcutaneously injected with 0.5 mL of 100 µg/mL OVA solution on 6th day to induce systemic sensitization again.On 18th day and 39th day,1.5 cm2 sterile gauze with 50 µL,1 000 µg/mL OVA solution were attached on the back of the mice and replaced every day for consecutive 7 days for the second local sensitization.On 46th day,the pathological changes in mouse skins were observed to judge whether mouse AD model was successfully established and the rates of being model and the mortality rate was calculated.Result The dermatitis changes,such as scab,flushing,desquamation,and so on,were shown in AD model mice.Also,the epidermal cells were thickened and the dermis was infiltrated with lymphocytes in AD model mice.The total serum IgE level in the AD model mice [(6 296.17±1 021.28) ng/Lsignificantly increased as compared with blank control mice [(1 280.97±501.24) ng/L](P<0.01) and the mice injected with saline [(1 327.57±629.71) ng/L(P<0.01).The rates of AD model and the mortality were respectively 94% and 6%.Conclusion Our study introduces a simple and stable method for mouse AD model induced by OVA.

Key words: Mouse model, Atopic dermatitis (AD), Ovalbumin (OVA)

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