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Type: Journal article
Title: Immunohistochemical level of unsulfated chondroitin disaccharides in the cancer stroma is an independent predictor of prostate cancer relapse
Author: Sakko, A.
Butler, M.
Byers, S.
Reinboth, B.
Stahl, C.
Kench, J.
Horvath, L.
Sutherland, R.
Stricker, P.
Henshall, S.
Marshall, V.
Tilley, W.
Horsfall, D.
Ricciardelli, C.
Citation: Cancer Epidemiology Biomarkers & Prevention, 2008; 17(9):2488-2497
Publisher: Amer Assoc Cancer Research
Issue Date: 2008
ISSN: 1055-9965
Statement of
Andrew J. Sakko, Miriam S. Butler, Sharon Byers, Betty J. Reinboth, Jürgen Stahl, James G. Kench, Lisa G. Horvath, Robert L. Sutherland, Phillip D. Stricker, Susan M. Henshall, Villis R. Marshall, Wayne D. Tilley, David J. Horsfall and Carmela Ricciardelli
Abstract: The glycosaminoglycan chondroitin sulfate is significantly increased in the peritumoral stroma of prostate tumors compared with normal stroma and is an independent predictor of prostate-specific antigen (PSA) relapse following radical prostatectomy. In this study, we determined whether specific alterations in the sulfation pattern of glycosaminoglycan chains in clinically organ-confined prostate cancer are associated with PSA relapse. Immunoreactivity to distinct glycosaminoglycan disaccharide epitopes was assessed by manually scoring the staining intensity in prostate tissues from patients with benign prostatic hyperplasia (n = 19), early-stage cancer (cohort 1, n = 55 and cohort 2, n = 275), and advanced-stage cancer (n = 20). Alterations to glycosaminoglycans in benign and malignant prostate tissues were determined by cellulose acetate chromatography and high-pressure liquid chromatography. Glycosaminoglycan disaccharide epitopes were localized to the peritumoral stroma of clinically localized prostate cancer. The level of immunostaining for unsulfated disaccharides (C0S) in the peritumoral stroma, but not for 4-sulfated (C4S) or 6-sulfated disaccharides (C6S), was significantly associated with the rate of PSA relapse following radical prostatectomy. High levels of C0S immunostaining were determined to be an independent predictor of PSA relapse (1.6-fold, P = 0.020). Advanced-stage prostate cancer tissues exhibited reduced electrophoretic mobility for chondroitin sulfate and increased unsulfated disaccharides when compared with benign prostatic hyperplasia tissues, whereas the sulfated disaccharide levels were unaffected. The level of C0S immunostaining in the peritumoral stroma is an independent determinant of PSA failure in clinically localized prostate cancer. Specific alterations to chondroitin sulfate side chains occurring during tumor development may be a crucial step for disease progression in prostate cancer.
Keywords: glycosaminoglycan; immunohistochemistry; cellulose acetate electrophoresis; chondroitin sulfate; HPLC
Description: Copyright © 2008 American Association for Cancer Research.
RMID: 0020082626
DOI: 10.1158/1055-9965.EPI-08-0204
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Appears in Collections:Obstetrics and Gynaecology publications

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