›› 2007, Vol. 27 ›› Issue (1): 45-47.

• 论文 • 上一篇    下一篇

CTLA4-Ig腺病毒基因局部转染诱导大鼠肾移植免疫耐受

  

  1. 苏州大学附属第一医院泌尿外科,苏州 215006
  • 收稿日期:2006-08-18 出版日期:2007-01-31 发布日期:2007-01-31

Induction of Transplantation Tolerance by CTLA4-Ig Adenovirus Gene Local Transfection in Allogeneic Rats

  1. Department of Urology, the First Hospital Affiliated to Suzshou University, Suzhou 215006,China
  • Received:2006-08-18 Online:2007-01-31 Published:2007-01-31

摘要: 目的 通过CTLA4-Ig腺病毒基因治疗诱导异基因大鼠之间的肾脏移植免疫耐受,并探讨相关机制.方法 以CTLA4-Ig基因重组腺病毒为载体,将CTLA4-Ig基因局部转染入SD大鼠肾脏.将SD对Wistar大鼠原位肾移植模型分为三组:组Ⅰ为空白对照组;组Ⅱ为EGFP空载体对照组;组Ⅲ为CTLA4-Ig基因转染组.观察大鼠存活时间及肾功能变化.结果 组Ⅰ移植肾存活时间8.17±1.17 d;组Ⅱ移植肾存活时间8.00±1.55 d;组Ⅲ存活时间31.33±6.77 d.组Ⅲ存活时间明显延长.转染组术后血清肌酐较同期对照组为低.结论 CTLA4-Ig基因局部转染供肾的基因治疗,可诱导异基因大鼠间的肾脏移植免疫耐受,延长肾脏移植物存活时间.

关键词: 基因表达, 移植, 肾脏

Abstract: Objective To induce renal transplantation tolerance by CTLA4-Ig adenovirus gene therapy in allogeneic rats and study the relative mechanisms of transplantation tolerance.Methods The kidney of SD rats were transfected with CTLA4-Ig gene-recombined adenovirus.After the orthotopic renal transplantation between SD and Wistar rats was conducted,all the rats were divided into 3 groups:group I was the control;rats in group II were perfused with empty EGFP and there in group Ⅲ with CTLA4-Ig adenovirus. The allograft survival time and the allograft funtion between the three groups were compared. Result The survival time was significantly longer in rat of group Ⅲ than in other 2 groups(31.3 ±6.8 days vs 8.2 士 1.2 days and 8.0 土 1.6 days). The serum creatinine of transfection group at 7th and 14th postoperative days was lower than that of controls at 7th postoperative day. Conclusion Local transfection of CTLA4-Ig gene can augment the tolerance and prolong the survival time of renal allograft significantly.

Key words: Gene expression, Transplantation, Kidney