Premium
Benign hyperplasia of the human prostate is associated with tissue enrichment in chondroitin sulphate of wide size distribution
Author(s) -
Goulas Antonis,
Hatzichristou Dimitrios G.,
Karakiulakis George,
MirtsouFidani Vasiliki,
Kalinderis Athanasios,
Papakonstantinou Eleni
Publication year - 2000
Publication title -
the prostate
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.295
H-Index - 123
eISSN - 1097-0045
pISSN - 0270-4137
DOI - 10.1002/1097-0045(20000701)44:2<104::aid-pros2>3.0.co;2-6
Subject(s) - hyperplasia , glycosaminoglycan , prostate , chemistry , extracellular matrix , stromal cell , hyaluronic acid , chondroitin , proteoglycan , glycan , endocrinology , medicine , biochemistry , glycoprotein , anatomy , cancer
BACKGROUND Benign prostatic hyperplasia (BPH) involves qualitative and quantitative alterations in extracellular matrix (ECM) components affecting stromal‐epithelial interactions. Glycosaminoglycans (GAGs) are polysaccharide components of the ECM whose role in the development of BPH is under investigation. METHODS GAGs were extracted from human prostates of normal and BPH origin and were subsequently fractionated through DEAE‐sephacel anion exchange chromatography. The isolated GAG fractions were identified through electrophoresis on cellulose acetate membranes and treatment with GAG‐degrading enzymes of known specificity. Their size distribution was determined through gradient polyacrylamide gel electrophoresis. RESULTS Isolated prostatic GAGs included hyaluronic acid (HA), heparan sulphate (HS), and a mixture of dermatan sulphate (DS) and chondroitin sulphate (CS). The CS/DS ratio was significantly higher in hyperplastic as compared to normal prostates. A difference was also observed with respect to the apparent molecular mass of the DS‐CS mixture, which reflects the CS enrichment in BPH. GAGs isolated from hyperplastic prostates were more diverse in size as compared to the corresponding glycans from normal prostates. CONCLUSIONS The apparent increase in CS and decrease in DS content in prostates of patients with BPH is in good agreement with the pathological manifestation of increased cell proliferation in hyperplastic prostate tissue, since these glycan molecules have been reported to increase and decrease cell proliferation, respectively. Identification of the responsible enzymes involved in the homeostasis of CS and DS may provide alternative targets for pharmacological intervention. Prostate 44:104–110, 2000. © 2000 Wiley‐Liss, Inc.