CsA的相对不溶性使其易于沉积在肾小管上皮细胞中,这是它最易导致肾小管上皮细胞损伤的重要原因[5]。本组病例中,CsA和P-gp在肾小管表达最多,进一步提示CsA可能主要沉积在肾小管上皮导致肾毒性。 检测移植肾组织中CsA和P-gp表达,为寻找诊断CsA导致肾毒性的方法提供了线索。为证实上述结论的正确性,除需进一步增加病例外,尚需对应用CsA而移植肾功能正常的移植受者肾组织进行对照观察研究。 倪灿荣(上海第二军医大学免疫病理室) 唐孝达(上海市第一人民医院泌尿科 上海,200080) 参考文献 1,Jette L,Beaulieu E,Leclerc JM et al.Cyclosporine A treatment induces over expression of P-glycoprotein in the kidney and other tissues.Am J Physiol,1996 May,270(5 Pt 2):F756 2,朱有华,孟 钢,闵志廉等.肾移植受者环孢素A治疗窗浓度的临床研究.中华泌尿外科杂志,1998,2:67 3,Benigni A,Bruzzi I,Mister M et al.Nature and mediators of renal lesions in kidney transplant patients given cyclosporine for more than one year.Kidney Int,1999 Feb,55(2):674 4,Al-Awwa IA,Hariharan S,First MR.Importance of allograft biopsy in renal transplant recipients:correlation between clinical and histological diagnosis.Am J Kidney Dis,1998 Jun,31(6 Suppl 1):S15 5,郑绮宜,郑克立.移植与环孢素.见:苏泽轩,于立新,黄洁夫主编.现代移植学.北京:人民卫生出版社,1998.170 6,Mihastsh MJ,Antonovych T,Bohman S-O et al.Cyclosporine A nephropathy:standardization of the evaluation of kidney biopsies.Clin Nephrol,1994,41:23 7,Mihastsh MJ,Thiel G,Ryffel B.Histopathology of cyclosporin nephrotoxicity.Transplant Proc,1988,20:759 收稿1999-12-10 |
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