Published in:
01-06-2012
Serum Levels of Secreted Group IIA Phospholipase A2 in Benign Prostatic Hyperplasia and Prostate Cancer: A Biomarker for Inflammation or Neoplasia?
Authors:
Mario Menschikowski, Albert Hagelgans, Susanne Fuessel, Olga A. Mareninova, Volker Neumeister, Manfred P. Wirth, Gabriele Siegert
Published in:
Inflammation
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Issue 3/2012
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Abstract
Secreted group IIA phospholipase A2 (sPLA2-IIA) is markedly up-regulated in human prostate cancer (PCa) specimens and in some PCa-derived cell lines, indicating an important role of this enzyme in tumourigenesis. In this study, we measured levels of sPLA2-IIA, C-reactive protein (CRP), and prostate-specific antigen (PSA) in serum samples obtained from patients with benign prostatic hyperplasia (BPH) and with PCa of different stages. We found that serum levels of sPLA2-IIA and CRP in BPH and PCa patients were significantly elevated compared to those of healthy individuals, but the concentrations of these inflammatory biomarkers did not differ between patients with BPH or PCa. Furthermore, serum levels of sPLA2-IIA correlated with concentrations of CRP, but not with PSA, Gleason grade or tumour stage. In conclusion, these findings suggest that cancer-related changes are not exclusive factors contributing to elevated serum sPLA2-IIA levels and emphasize the utility of sPLA2-IIA as a circulating marker of inflammation in patients with BPH and PCa.