Putative Biomarker Genes for Grading Clear Cell Renal Cell Carcinoma

被引：10
作者：
Maruschke, M. [1 ]
Koczan, D. [2 ]
Reuter, D. [2 ]
Ziems, B. [4 ]
Nizze, H. [3 ]
Hakenberg, O. W. [1 ]
Thiesen, H. -J. [2 ]
机构：
[1] Univ Rostock, Dept Urol, DE-18055 Rostock, Germany
[2] Univ Rostock, Inst Immunol, DE-18055 Rostock, Germany
[3] Univ Rostock, Inst Pathol, DE-18055 Rostock, Germany
[4] Gesell Individualisierte Med mbH IndyMed, Rostock, Germany
来源：
UROLOGIA INTERNATIONALIS | 2011年 / 87卷 / 02期
关键词：
Renal cell carcinoma; Metastasis; Gene expression; Event ratio scoring; Prognostic factors; Ceruloplasmin; HORMONE-RELATED PROTEIN; KIDNEY CANCER; STAGING SYSTEM; IN-VIVO; EXPRESSION; CERULOPLASMIN; IDENTIFICATION; TUMOR; SURVIVAL; INTERLEUKIN-20;
D O I：
10.1159/000328196
中图分类号：
R5 [内科学]; R69 [泌尿科学（泌尿生殖系疾病）];
学科分类号：
1002 ; 100201 ;
摘要：
Objective: The initial objective of this renal cancer study was to identify gene sets in clear cell renal cell carcinoma (ccRCC) to support grading of ccRCC histopathology. Materials and Methods: Preselected ccRCC tumor tissues of grade 1 (G1, n = 14) and grade 3 (G3, n = 15) as well es 14 normal kidney tissues thereof were subjected to microarray expression analysis using Human Genome U133 Plus 2.0 Array. Event ratio scoring, hierarchical clustering and principal component analysis were used to determine gene sets that distinguish expression profiles from normal kidney tissue, G1 and G3 tumor tissues. Results: An initial set of 73 genes provided seven gene subclusters (SC01 to SC07) that distinguish RNA expression profiles from G1, G3 tumor and normal kidney tissues. A ranked list of 24 genes was determined that separated G1 from G3 tumors in high concordance with histopathological grading confirmed by immunohistochemical analysis of ceruloplasmin protein expression. Conclusion: A final set of 24 genes has been determined awaiting further validation on the RNA as well as on the protein level by studying an additional cohort of ccRCC patients. A reliable separation of G1 and G3 tumor grades will be instrumental to foster and direct the administration of upcoming targeted therapeutics of ccRCC tumors in a more predictive and reliable manner. Copyright (C) 2011 S. Karger AG, Basel
引用
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页码：205 / 217
页数：13
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