医学
前列腺切除术
前列腺癌
缺氧(环境)
泌尿科
前列腺
癌症
肿瘤科
内科学
化学
有机化学
氧气
作者
Judith Jans,Jessica H. van Dijk,Susanne van Schelven,Petra van der Groep,Sofie H Willems,Trudy N. Jonges,P. J. van Diest,Jackie Bosch
出处
期刊:Urology
[Elsevier]
日期:2010-04-01
卷期号:75 (4): 786-792
被引量:31
标识
DOI:10.1016/j.urology.2009.08.024
摘要
Objectives
To uncover novel biomarkers that will help predict which patients are at risk and may guide future treatment decisions. A significant proportion of prostate cancer patients treated with radical prostatectomy will experience a recurrence of the disease. Given the substantial role of hypoxia in prostate cancer development and treatment, this investigation focuses on the Hypoxia Inducible Factor (HIF-1α) pathway. Methods
A tissue microarray was constructed of prostate cancer tissue collected from 71 patients undergoing radical prostatectomy. The expression of proteins involved in the HIF-1α pathway was investigated by an immunohistochemical approach and correlated to clinical features including the time to biochemical recurrence. Results
Expression of GLUT1 correlated significantly (P <.05) with a shorter time to biochemical recurrence after radical prostatectomy and was independent from the Gleason grade and stage of cancer. Furthermore, our studies revealed for the first time that accumulation of prolyl-4-hydroxylases 1 especially in the nucleus, is a significant indicator for a worse prognosis (P <.001). Conclusions
This study confirms the upregulation of proteins involved in the HIF-1α hypoxia pathway in prostate cancer cells, indicative of a hypoxic tumor state. Importantly, we report the identification of 2 novel markers, GLUT1 and prolyl-4-hydroxylases 1, with prognostic significance for patients undergoing radical prostatectomy.
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