Expression of CCCTC-binding factor (CTCF) is linked to poor prognosis in prostate cancer.
Doris Höflmayer, Amélie Steinhoff, Claudia Hube-Magg, Martina Kluth, Ronald Simon, Eike Burandt, Maria Christina Tsourlakis, Sarah Minner, Guido Sauter, Franziska Büscheck, Waldemar Wilczak, Stefan Steurer, Hartwig Huland, Markus Graefen, Alexander Haese, Hans Heinzer, Thorsten Schlomm, Frank Jacobsen, Andrea Hinsch, Alexandra M Poos, Marcus Oswald, Karsten Rippe, Rainer König, Cornelia Schroeder
Molecular oncology 2020 JanThe chromatin-organizing factor CCCTC-binding factor (CTCF) is involved in transcriptional regulation, DNA-loop formation, and telomere maintenance. To evaluate the clinical impact of CTCF in prostate cancer, we analyzed CTCF expression by immunohistochemistry on a tissue microarray containing 17 747 prostate cancers. Normal prostate tissue showed negative to low CTCF expression, while in prostate cancers, CTCF expression was seen in 7726 of our 12 555 (61.5%) tumors and was considered low in 44.6% and high in 17% of cancers. Particularly, high CTCF expression was significantly associated with the presence of the transmembrane protease, serine 2:ETS-related gene fusion: Only 10% of ERG-negative cancers, but 30% of ERG-positive cancers had high-level CTCF expression (P < 0.0001). CTCF expression was significantly associated with advanced pathological tumor stage, high Gleason grade (P < 0.0001 each), nodal metastasis (P = 0.0122), and early biochemical recurrence (P < 0.0001). Multivariable modeling revealed that the prognostic impact of CTCF was independent from established presurgical parameters such as clinical stage and Gleason grade of the biopsy. Comparison with key molecular alterations showed strong associations with the expression of the Ki-67 proliferation marker and presence of phosphatase and tensin homolog deletions (P < 0.0001 each). The results of our study identify CTCF expression as a candidate biomarker for prognosis assessment in prostate cancer. © 2019 The Authors. Published by FEBS Press and John Wiley & Sons Ltd.
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Doris Höflmayer, Amélie Steinhoff, Claudia Hube-Magg, Martina Kluth, Ronald Simon, Eike Burandt, Maria Christina Tsourlakis, Sarah Minner, Guido Sauter, Franziska Büscheck, Waldemar Wilczak, Stefan Steurer, Hartwig Huland, Markus Graefen, Alexander Haese, Hans Heinzer, Thorsten Schlomm, Frank Jacobsen, Andrea Hinsch, Alexandra M Poos, Marcus Oswald, Karsten Rippe, Rainer König, Cornelia Schroeder. Expression of CCCTC-binding factor (CTCF) is linked to poor prognosis in prostate cancer. Molecular oncology. 2020 Jan;14(1):129-138
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PMID: 31736271
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