New tools for assessing the individual risk of metastasis in renal cell carcinoma
New tools for assessing the individual risk of metastasis in renal cell carcinoma
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评估肾细胞癌个体转移风险的新工具
DOI:
10.1007/s10585-012-9529-6
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发表时间:
2013
影响因子:
4
通讯作者:
Goerge T
中科院分区:
文献类型:
--
作者:
Herrmann E;Weishaupt C;Pöppelmann B;Hillgruber C;Puhse G;Krabbe LM;Feld M;Steinhoff M;Goerge T
Localized renal cell carcinoma (RCC) progresses to metastastic disease in 20–40 % after surgical resection. Affected patients might benefit from adjuvant treatment and have to be reliably identified for treatment indication. However, existing molecular markers and classification nomograms lack sufficient validity for clinical application so far. Therefore, in order to improve diagnostic tools for the identification of patients at risk, we tested invasiveness and the capability to activate vascular endothelium of primary RCC cells as tumor specific functional parameters. As a parameter for cell invasiveness the ability of RCC cells to break-down transepithelial electrical resistance (TEER) of an epithelial cell monolayer was tested. Loss of resistance, calculated as invasivity index, resembled the degree of cell invasiveness. In addition, secretion of Von Willebrand Factor by endothelial cells incubated with RCC cell supernatant was measured as a surrogate marker for endothelial cell activation. TEER-assay results matched clinical status of disease in 9 out of 12 cases. Metastatic tumors and less differentiated tumors had a significant increase of invasivity index (p= 0.007;p= 0.034). Endothelial cell activation and clinical outcome matched in 5 out of 9 samples. In addition, tumor cell induced endothelial cell activation significantly correlated to the pathologic T classification status of RCC tumors (p= 0.009). Taken together, our study validated endothelial cell activation analysis and cell invasiveness as solitary prognostic markers for tumor dissemination. TEER-analysis has proven to be a useful functional assay giving highly relevant individual information on functional tumor cell characteristics that add to pathologic evaluation.
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DOI:
10.1152/ajprenal.00327.2001
发表时间:
2002
期刊:
American journal of physiology. Renal physiology
影响因子:
--
作者:
T. Ludwig;R. Ossig;S. Graessel;M. Wilhelmi;H. Oberleithner;S. Schneider
通讯作者:
S. Schneider
影响因子:
45.3
作者:
Motzer, RJ;Mazumdar, M;Ferrara, J
通讯作者:
Ferrara, J
DOI:
10.1007/s004240000282
发表时间:
2000
期刊:
Pflügers Archiv
影响因子:
--
作者:
J. Żak;S. Schneider;I. Eue;T. Ludwig;H. Oberleithner
通讯作者:
H. Oberleithner
DOI:
10.1007/bf01875708
发表时间:
1981
期刊:
The Journal of Membrane Biology
影响因子:
--
作者:
N. Simmons
通讯作者:
N. Simmons
影响因子:
4
作者:
R. Mandic;T. Ludwig;H. Oberleithner;J. Werner
通讯作者:
J. Werner