华西口腔医学杂志

• 专栏论著 • 上一篇    下一篇

肿瘤坏死因子α和白细胞介素2在大鼠皮肤移植中的作用

王军琳,金岩,刘晓亮   

  1. 710032 第四军医大学口腔医学院组织病理教研室
  • 收稿日期:2003-12-25 修回日期:2003-12-25 出版日期:2003-12-20 发布日期:2003-12-20
  • 基金资助:

    本课题为国家科技部“863”重大专项课题资助项目(编号 002AA205041)

Study on Tumor Necrosis Factor-αand Interleukin 2 in Rat Skin Allograft

WANGJunlin,JINYan,LIUXiaoliang.   

  1. Department ofOralHistology andPathology,College ofStomatology,the FourthMilit- aryMedical University,Xi′an710032,China
  • Received:2003-12-25 Revised:2003-12-25 Online:2003-12-20 Published:2003-12-20

摘要:

目的 探讨肿瘤坏死因子α(TNF-α)和白细胞介素2(IL-2)在同种异体大鼠皮肤移植后免疫排斥反应中的作用,研究组织工程皮肤的组织相容性。方法 取SD大鼠皮肤和实验室培养的组织工程SD大鼠皮肤移植于成年Wistar大鼠,移植成功后取不同时间点标本用免疫组织化学方法和Western blot方法检测TNF-α和IL-2在组织中的表达。结果 同种异体皮肤移植组,TNF-α和IL-2有显著表达;组织工程皮肤移植后,局部组织中TNF-α和IL-2 水平显著低于同种异体皮肤移植组。结论 TNF-α和IL-2水平的改变与同种异体皮肤移植后免疫排斥反应的发生密切相关,组织工程皮肤只具有很弱的免疫原性,不引起显著的排斥反应。

关键词: 肿瘤坏死因子α, 白细胞介素2, 组织工程, 同种异体移植

Abstract:

Objective To elucidate the histocompatibility of tissue engineered rat skin through studying the effect ofTNF- αand IL-2 in immunological rejection after rat skin allograft.Methods Tissue engineered skin thatthe basic materialswere taken from neonatal SD rats was cultured in lab, grafted to adult Wistar rats. The expressions of TNF-αand IL-2 in grafted tissue were detected with immunohistochemical staining and Western blot.Results The expressions of TNF-αand IL-2 were remarkable in skin allograft group, but low in tissue engineered skin group.Conclusion The expressions of TNF-αand IL-2 and the immuno- logical rejection were closely related after skin allograft, but the tissue engineered skin has favorable histocompatibility and doesn′t arose obvious immunological rejections.

Key words: tumor necrosis factor-α, interleukin-2, tissue engineering, allograft