Journal
CLINICA CHIMICA ACTA
Volume 413, Issue 19-20, Pages 1500-1505Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cca.2012.06.007
Keywords
Benign prostatic hyperplasia; Glycosylation; Lectin; Prostate cancer; Prostate specific antigen isoforms
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Prostate specific antigen (PSA) assays are widely used for early detection of prostate cancer. However, those analyses are associated with considerable sensitivity and specificity problems. Several approaches have been developed to tackle this issue. PSA is a glycoprotein, which is primarily produced by the prostatic epithelial cells. Aberrant glycosylation modification of proteins is a fundamental characteristic of tumorigenesis. Study of PSA glycoforms offers interesting diagnostic perspectives. Modern technology allows us to analyze PSA glycoforms in a variety of clinical samples (serum or plasma, urine, seminal fluid, tissue). A number of novel techniques, such as lectin-based detection methods, mass spectrometry, 2-dimensional electrophoresis and capillary electrophoresis have been developed to analyze PSA glycosylation. This article reviews the technical and diagnostic aspects of PSA glycoforms. (C) 2012 Elsevier B.V. All rights reserved.
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