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Changes of peripheral blood CD4+CD25+ regulatory T cells and TREG-related Foxp3 gene expression at the onset of chronic allograft nephropathy
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- Author:
- No author available
- Journal Title:
- Journal of Southern Medical University
- Issue:
- 9
- DOI:
- 10.3969/j.issn.1673-4254.2012.09.035
- Key Word:
- 肾移植;慢性移植肾肾病;免疫调节细胞;CD4+CD25+;叉状头/翅膀状螺旋转录因子
Abstract： 目的 研究慢性移植肾病(CAN)发生初期外周血CD4+CD25+Foxp3+T(TREG)细胞变化及意义.方法 对25例初发CAN的受者外周血CD4+CD25+high/CD4+T比率及Foxp3表达进行了检测,同时与使用同一抗排斥治疗方案、移植肾功能正常的30例受者、以及未行肾移植的慢性肾功能不全尿毒症期的20例和正常人20例进行比较,研究了CAN发生初期TREG细胞的变化.结果 CAN发生初期的受者,CD4+CD25+Thigh/CD4+比率为0.71±0.33,Foxp3表达率为62.75±10.80;移植肾功正常者,两指标分别为1.17±0.25及70.42±6.87,移植肾病组两指标均明显低于移植肾功能正常组(P＜0.01).无论移植肾功能正常与否,移植受者的CD4+CD25+high/CD4+比率和Foxp3表达率均较未行移植尿毒症患者(1.53±0.35及77.86±7.09)及正常人(1.65±0.28及81.35±2.39)明显降低(P＜0.01),而正常人及未移植尿毒症患者两指标无明显差别.结论 与移植肾功能正常者相比,CAN发生初期患者外周血中CD4+CD25+hight/CD4+比率及Foxp3表达率均明显降低,且与肌酐增高无关,提示TREG在CAN的发生中具有一定意义.
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