Objectives: PSMA (prostate-specific membrane antigen) is overexpressed in prostate cancer cells and is reported to be a promising target for antibody-based radioligand therapy in patients with metastasized prostate cancer. Since PSMA expression is not restricted to prostate cancer, the underlying study investigates PSMA expression in non-small cell lung cancer (NSCLC). Material and methods: Immunohistochemistry was used to identify PSMA expression in n = 275 samples of NSCLC tissue specimens. By means of CD34 co-expression, the level of PSMA expression in tumor associated neovasculature was investigated. The impact of PSMA expression on clinicopathologic parameters and prognosis was evaluated. Results: PSMA tumor cell expression in NSCLC is as low as 6% and was predominantly found in squamous cell carcinoma (p = 0.002). Neovascular PSMA expression was found in 49% of NSCLC. High neovascular PSMA expression was associated with higher tumor grading (G3/G4) (p < 0.001). Neither for PSMA tumor cell expression, nor for PSMA neovascular cell expression prognostic effects were found for the investigated NSCLC cases. Conclusion: Here, we report on the expression of PSMA in NSCLC tissue samples. Against the background of a potential treatment with radiolabeled PSMA ligands, our data might serve for the future identification of patients who could benefit from this therapeutic option.
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- TitelProstate specific membrane antigen (PSMA) expression in non-small cell lung cancer
- VerfasserSchmidt, Lars Henning ; Heitkötter, Birthe Franziska ; Schulze, Arik Bernard ; Schliemann, Christoph ; Steinestel, Konrad Ernst ; Trautmann, Marcel ; Marra, Alessandro ; Hillejan, Ludger ; Mohr, Michael ; Evers, Georg Heribert ; Wardelmann, Eva ; Rahbar, Kambiz ; Görlich, Dennis ; Lenz, Georg ; Berdel, Wolfgang E. ; Berdel, Wolfgang ; Berdel, W. E. ; Hartmann, Wolfgang ; Wiewrodt, Rainer Gerhard ; Wiewrodt, Rainer ; Huss, Sebastian
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- AnmerkungFinanziert durch den Open-Access-Publikationsfonds 2018 der Deutschen Forschungsgemeinschaft (DFG) und der Westfälischen Wilhelms-Universität Münster (WWU Münster).
- SpracheEnglisch
- Bibl. ReferenzPLoS ONE 12 (2017) 10, e0188262, 1-12
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