Transplantation :尿液细胞mRNA检测有助预测和诊断移植肾纤维化

2012-07-20 范振光 手牵手博客

  肾小管间质纤维化是移植肾功能丢失的重要病理学特征,这需要通过侵袭性的肾脏病理活检才能确诊。如果能找到非侵袭性检查手段达到预测和早期诊断移植肾纤维化,将有效改善肾移植患者的预后。     法国学者Dany Anglicheau的团队的最新研究显示,检测尿液细胞mRNA有助早期诊断移植肾纤维化。研究者收集了114名肾移植受者的尿液标本,其中48名为肾活检确诊的移植肾纤维化患者,66名

  肾小管间质纤维化是移植肾功能丢失的重要病理学特征,这需要通过侵袭性的肾脏病理活检才能确诊。如果能找到非侵袭性检查手段达到预测和早期诊断移植肾纤维化,将有效改善肾移植患者的预后。
 
  法国学者Dany Anglicheau的团队的最新研究显示,检测尿液细胞mRNA有助早期诊断移植肾纤维化。研究者收集了114名肾移植受者的尿液标本,其中48名为肾活检确诊的移植肾纤维化患者,66名为肾活检正常者。研究者对这些尿液标本中细胞mRNA水平进行了定量检测并分析器水平与移植肾纤维化之间的关联后发现,尿液细胞中以下种类的mRNA与移植肾纤维化显著相关:波形蛋白(P<0.0001)、肝细胞生长因子(P<0.0001)、α-平滑肌肌动蛋白(P<0.0001)、纤维连接蛋白(P<0.0001)、穿孔素(P=0.0002)、纤溶酶原激活剂抑制物(P=0.0002)、转化生长因子β1(P=0.0004)、MMP1组织抑制物(P=0.0009)、颗粒酶B(P=0.0009)、成纤维细胞特异蛋白1(P=0.006)、CD103(P=0.02)以及胶原蛋白1A1(P=0.04)。在被检测的多种mRNA中,准确度最高且最经济的组合为波形蛋白、NKCC2、E-钙黏着蛋白和18S核糖体RNA,四种mRNA联合用于诊断移植肾移植的敏感性为93.8%,特异性为84.1%(P<0.0001)。研究者采用独立验证方法对上述四种mRNA预测移植肾纤维化的敏感性和特异性进行了计算,分别达77.3%和87.5%(P<0.0001)。
 
  该研究提示,尿液细胞mRNA检测有望成为预测和诊断移植肾纤维化的一种有效的非侵袭性手段。
   
链接:
Anglicheau, Dany1,2; Muthukumar, Thangamani1,3,4; Hummel, Aurélie5; Ding, Ruchuang3; Sharma, Vijay K.3; Dadhania, Darshana3,4; Seshan, Surya V.6; Schwartz, Joseph E.1,3,7; Suthanthiran, Manikkam1,3,4,8.Discovery and Validation of a Molecular Signature for the Noninvasive Diagnosis of Human Renal Allograft Fibrosis.Transplantation 2012 Jun 15;93(11):1136-1146

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    2013-02-18 bsmagic9140
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    2013-02-18 xuyu
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