首页> 外文期刊>Transplantation: Official Journal of the Transplantation Society >Cytotoxic effector molecule gene expression in acute renal allograft rejection: correlation with clinical outcome; histopathology and function of the allograft.
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Cytotoxic effector molecule gene expression in acute renal allograft rejection: correlation with clinical outcome; histopathology and function of the allograft.

机译:急性同种异体肾移植排斥反应中细胞毒性效应分子基因表达与临床结果的相关性同种异体移植的组织病理学和功能。

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BACKGROUND: Cytotoxic effector molecule expression in human renal allograft biopsies has been closely associated with acute rejection. Here we studied whether intragraft expression of perforin, granzyme B, and Fas ligand correlates with long-term clinical outcome of acute rejection episodes. Furthermore, we examined the relation to histopathology and function of the allograft during rejection. METHODS: Twenty-two human renal biopsies were quantified for mRNA expression of perforin, granzyme B, Fas ligand, and Fas with reverse transcription-polymerase chain reaction. Expression levels were correlated with clinical outcome after 12 months, Banff rejection grades, and allograft function in the course of acute rejection. RESULTS: Only Fas ligand, but not perforin or granzyme B, showed significantly higher up-regulation in seven samples with therapy-resistant acute rejections versus eight samples with therapy-sensitive acute rejection. We found no relation between cytotoxic marker expression and Banff rejection grades or serum creatinine peak levels. CONCLUSIONS: Fas ligand may be useful as an early marker of therapy-resistant acute rejection. Cells that express Fas ligand but not classical soluble cytotoxic molecules might influence clinical outcome of acute rejection episodes.
机译:背景:人肾同种异体移植活检中的细胞毒性效应分子表达与急性排斥反应密切相关。在这里,我们研究了穿孔素,粒酶B和Fas配体的移植内表达是否与急性排斥反应的长期临床结果相关。此外,我们检查了排斥反应期间同种异体移植物与组织病理学和功能的关系。方法:采用逆转录-聚合酶链反应,对22例人肾活检组织中穿孔素,颗粒酶B,Fas配体和Fas的mRNA表达进行定量。表达水平与12个月后的临床结果,Banff排斥等级和急性排斥过程中的同种异体移植功能相关。结果:在7例具有治疗耐受性急性排斥反应的样本中,只有8个样本对治疗敏感的急性排斥反应,只有Fas配体而非穿孔素或颗粒酶B表现出明显更高的上调。我们发现细胞毒性标志物表达与班夫排斥等级或血清肌酐峰值水平之间没有关系。结论:Fas配体可作为耐药性急性排斥反应的早期标志物。表达Fas配体但不表达经典可溶性细胞毒性分子的细胞可能会影响急性排斥反应的临床结果。

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