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Carsten Stephan, Klaus Jung, Brigitte Brux, Michael Lein, Pranav Sinha, Dietmar Schnorr, Stefan A. Loening

Elimination of Serum Complexed Prostate-Specific Antigen after Radical Retropubic Prostatectomy

Total prostate-specific antigen (PSA) and complexed PSA were determined in venous blood from 12 patients with prostate cancer before and after radical prostatectomy by using Immuno 1 PSA assays. The elimination kinetics of complexed PSA were compared with that of total PSA. Nearly constant concentrations of complexed PSA were found during the first six hours after surgery, in contrast to the rapid elimination of free PSA and the significant decrease of total PSA. From day one to ten there was a continuous and nearly identical decrease of complexed PSA compared to total PSA. Our findings suggest that the initial rapid decrease of free PSA immediately after operation could be caused by formation of new PSA-complex.

Clinical Chemical Laboratory Medicine, Walter de Gruyter

Print ISSN: 1434-6621
Volume: 38, 04/2000
Pages: 309 - 311

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