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High nuclear Livin expression is a favourable prognostic indicator in renal cell carcinoma

2008; Wiley; Volume: 102; Issue: 11 Linguagem: Inglês

10.1111/j.1464-410x.2008.07910.x

1464-410X

Axel Haferkamp, Jens Bedke, Caroline Vetter, Maria Pritsch, Nina Wagener, Stephan Buse, Irena Crnković‐Mertens, Karin Hoppe‐Seyler, Stephan Macher‐Goeppinger, Felix Hoppe‐Seyler, Frank Autschbach, Markus Hohenfellner,

Pancreatic and Hepatic Oncology Research

To assess the protein expression of Livin, an apoptosis inhibitor, in renal cell carcinoma (RCC) and to determine its prognostic relevance.Immunohistochemical staining for Livin was performed in tissue microarrays (TMAs), including tumour tissue cores, from patients with RCC who had undergone renal surgery. In 682 TMAs cytoplasmatic staining intensity and nuclear staining quantity were evaluated, and the association of Livin expression with progression-free survival (PFS) and cancer-specific survival (CSS) was analysed with a multivariate Cox regression model.Over a median (range) follow-up of 5.2 (0-16.1) years, 204 patients (28%) had died from their disease. The CSS rates at 1 and 5 years for the entire cohort was 88% and 71%. Cytoplasmatic Livin staining was absent in 516 (76%) specimens; staining was positive in 166 (24%) specimens. Weak nuclear Livin staining ( 25%) nuclear Livin expression was a favourable independent predictor of PFS and CSS even after adjusting for tumour stage, Fuhrman grade, age, sex and Karnofsky severity rating. Cytoplasmatic Livin expression did not offer additional prognostic information.High nuclear Livin expression is a favourable independent predictor of PFS and CSS in patients with RCC.