Heat shock proteins 27, 60 and 70 as prognostic markers of prostate cancer

Autor: Rolf Lewensohn, Bo Nilsson, Axel Glaessgen, Sara Jonmarker, Alexander Valdman, Lars Egevad, Peter Ekman, Anna Lena Lindberg
Rok vydání: 2008
Předmět:
Zdroj: APMIS. 116:888-895
ISSN: 1600-0463
0903-4641
DOI: 10.1111/j.1600-0463.2008.01051.x
Popis: Heat shock proteins (HSPs) protect cells against stress-associated injury and are overexpressed in several malignant tumors. We aimed to investigate their value as prognostic markers in prostate cancer. A tissue microarray (TMA) was constructed of 289 prostate cancers from radical prostatectomy (RP) specimens with median follow-up of 48.9 months. Slides were immunostained for HSP27, HSP60 and HSP70. Intensity and extent of immunoreactivity (IR) and their product (IRp) was evaluated by two observers. The IRp of HSP27 and HSP60, but not of HSP70, significantly predicted biochemical recurrence (p=0.014, 0.034 and 0.160, respectively). Recurrence-free survival in patients with strong HSP27 and HSP60 staining was shorter than in those with weak expression (p=0.019 and 0.001, respectively). IRp of HSP27 and HSP60 correlated with Gleason score (p
Databáze: OpenAIRE