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Treatment of Murine Allergic Contact Dermatitis with CTLA4-Ig
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF DERMATOLOGY
- Issue:
- 4
- DOI:
- 10.3760/j.issn:0412-4030.2002.04.002
- Key Word:
- 皮炎,变应性接触性;CTLA4-Ig
Abstract： 目的探讨B7/CD28共刺激通路阻断剂CTLA4-Ig对变应性接触性皮炎的作用.方法建立小鼠二硝基氟苯(DNFB)变应性接触性皮炎模型,以不同剂量的CTLA4-Ig进行静脉注射,通过检测小鼠耳廓肿胀度观察其对DNFB和FITC刺激的反应,并观察CTLA4-Ig的长期疗效,同时对治疗后的小鼠脾细胞进行体外淋巴细胞增殖实验.结果CTLA4-Ig有明显的治疗作用,DNFB变应性接触性皮炎小鼠经治疗耳廓肿胀抑制率最高达69.7%,而且治疗的小鼠在激发后的14d用DNFB再刺激能产生无应答反应,但对FITC的再刺激表现为耳廓肿胀明显,过继转移CTLA4-Ig治疗小鼠的淋巴细胞能诱导受体鼠对DNFB的刺激产生特异性免疫耐受.结论应用B7/CD28共刺激通路阻断剂CTLA4-Ig融合蛋白能有效地抑制接触性超敏反应,为临床治疗Ⅳ型变态反应性皮肤病如湿疹等提供一种新的可能的治疗策略.
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