Publications by authors named "Graefen M"

Background: A pre-specified model based on four kallikrein markers in blood, commercially available as 4Kscore, predicts Gleason Grade (GG) 3 + 4 or higher prostate cancer on biopsy. However, sampling error and variation in pathology reporting may miss aggressive disease.

Methods: The 4Kscore was measured in cryopreserved blood from 2330 men obtained before prostatectomy at a single institution between 2002 and 2010.

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Article Synopsis
  • The Warburg effect describes how tumor cells consume high levels of sugar due to their reliance on glycolysis, even in the presence of oxygen.
  • Researchers have developed new sugar-based compounds, specifically designed to target this effect, which show promise in selectively killing prostate cancer cells, even those resistant to traditional drugs.
  • The mechanism of action involves disrupting mitochondrial function, leading to the activation of processes that induce apoptosis, paving the way for potential clinical development of these compounds.
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Purpose: We investigated the effect of race and age on the distribution of prostate cancer metastases.

Materials And Methods: Records for patients with metastatic prostate cancer were abstracted from the National Inpatient Sample database (2008-2015).

Results: Of 6,963 patients with metastatic prostate cancer 3,881 (72.

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Protein phosphatase 1 nuclear-targeting subunit (PNUTS) is ubiquitously expressed and associates with PTEN and protein phosphatase 1 (PP1) to control its activity. The role of PNUTS overexpression has hardly been studied in cancer. In this study, we used immunohistochemistry to quantitate PNUTS expression on a tissue microarray containing 17,747 clinical prostate cancer specimens.

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  • Checkpoint kinase 2 (CHK2) plays a crucial role in DNA repair and can influence cancer outcomes, with varying levels of expression linked to patient prognosis in prostate cancer.
  • A study analyzed 17,747 tumors and found that high CHK2 expression was common in prostate cancer, especially associated with ERG gene fusions and adverse features like advanced tumor stage and high Gleason scores.
  • In ERG negative prostate cancer, high CHK2 levels served as an independent predictor for early biochemical recurrence, suggesting that measuring CHK2 could help in clinical assessments for this subgroup.
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Pituitary tumor-transforming gene 1 (PTTG1) is a regulator of chromosome stability. PTTG1 overexpression had been associated with tumor aggressiveness in several cancer types. To examine its prognostic utility in prostate cancer, a tissue microarray including 12 427 tumors with clinical and molecular data was analyzed by immunohistochemistry.

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Context: Intermediate-risk prostate cancer consists of a highly heterogeneous group of patients. Owing to this heterogeneity and variable prognoses, it is challenging to provide uniform treatment recommendations for men in this group.

Objective: To review the current literature regarding the best available evidence for stratification and treatment of intermediate-risk prostate cancer patients.

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Background: About 5% of prostate cancer patients have distant metastases at diagnosis. In these metastatic hormone-sensitive prostate cancers (mHSPC), systemic therapy is recommended, according to the guidelines. Moreover, metastasis-directed therapy (MDT) is discussed to prolong survival.

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Objective: Based on unfavorable oncological and functional outcomes of non-organ-confined (NOC) prostate cancer (PCa), defined as ≥ pT3, pN1 or both, we aimed to develop a NOC prediction tool based on multiparametric MRI-guided targeted fusion biopsy (TBx).

Materials And Methods: Analyses were restricted to 594 patients with simultaneous PCa detection at systematic biopsy (SBx), TBx and subsequent radical prostatectomy (RP) at our institution. Development (n = 396; cohort 1) and validation cohorts (n = 198; cohort 2) were used to develop and validate the NOC nomogram.

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This cohort study examines the association of older age with risk of adverse pathological findings at radical prostatectomy in men with biopsy-confirmed Gleason score 6 prostate cancer.

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Cancer-specific survival (CSS) within high-risk non-metastatic prostate cancer varies dramatically. It is likely that within this heterogenous population there are subgroup(s) at extraordinary risk, burdened with an exaptational poor prognosis. Establishing the characteristics of these group(s) would have significant clinical implications since high quality preoperative risk stratification remains the cornerstone of therapeutic decision making to date.

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From a root bark of Turch we isolated two new (7 and 8) and six previously known compounds (1-6) belonging to the group of prenylated polyphenols. Their structures were elucidated using mass spectrometry, nuclear magnetic resonance and circular dichroism spectroscopy. These natural compounds selectively inhibited human drug-resistant prostate cancer in vitro.

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Altered expression of the carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) has been linked to adverse tumor features in various cancer types. To better understand the role of CEACAM1 in prostate cancer, we analyzed a tissue microarray containing tumor spots from 17,747 prostate cancer patients by means of immunohistochemistry. Normal prostate glands showed intense membranous CEACAM1 positivity.

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Background: TFAP2D is a transcription factor important for modulating gene expression in embryogenesis. Its expression and prognostic role in prostate cancer has not been evaluated.

Methods: Therefore, a tissue microarray containing 17,747 prostate cancer specimens with associated pathological, clinical, and molecular data was analyzed by immunohistochemistry to assess the role of TFAP2D.

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The role of subcellular survivin compartmentalization in the biology and prognosis of prostate cancer is unclear. We therefore investigated subcellular localization of survivin in more than 3000 prostate cancer patients by quantitative immunohistochemistry and performed transcriptomics of 250 prostate cancer patients and healthy donors using publicly available datasets. Survivin (BIRC5) gene expression was increased in primary prostate cancers and metastases, but did not differ in recurrent vs non-recurrent prostate cancers.

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Objective: To assess the effects of robot-assisted radical prostatectomy in the Trendelenburg position on postoperative neurocognitive outcomes this study compared cognitive function between patients who underwent robot-assisted radical prostatectomy and those who underwent open retropubic radical prostatectomy.

Methods: Objective evaluations of pre- and postoperative cognitive function were performed upon admission and before hospital discharge, by using a neuropsychological test battery. We collected self-reported data on cognitive failures at 3 months postoperatively.

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In multivariate analysis, GS of the regular prostatectomy specimen was the only statistically significant parameter for pT2R1 prostate cancer.

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Background: The aim of this study was to compare the incidence of early postoperative delirium in the postanesthesia care unit (PACU) between robot-assisted radical prostatectomy (RARP) in the extreme Trendelenburg position and open retropubic radical prostatectomy (ORP) in supine position.

Methods: Patients were screened for delirium signs 15, 30, 45, and 60 minutes following extubation.

Results: PACU delirium was present in 39.

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Purpose: We compared the use of C-choline and Ga-prostate specific membrane antigen in men undergoing salvage lymph node dissection for nodal recurrent prostate cancer.

Materials And Methods: The study included 641 patients who experienced prostate specific antigen rise and nodal recurrence after radical prostatectomy and underwent salvage lymph node dissection. Lymph node recurrence was documented by positron emission tomography/computerized tomography using C-choline (407, 63%) or Ga-PSMA ligand (234, 37%).

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Purpose: To test the effect of age on cancer-specific mortality (CSM) in most contemporary prostate cancer (PCa) patients of all stages and across all treatment modalities.

Methods: Within the Surveillance, Epidemiology, and End Results database (2004-2016), we identified 579,369 PCa patients. Cumulative incidence plots and multivariable competing-risks regression analyses (MCR) were used.

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The five-tier grade group (GG) classification for prostate cancer (PCa) does not differentiate between primary (5+4) or secondary (4+5) histological Gleason 5 pattern in GG 5. We addressed the prognostic value of primary versus secondary biopsy Gleason 5 for GG 5 among 18 555 PCa patients treated with radical prostatectomy (RP) between 1992 and 2014. Of these, 922 patients had GG 5 PCa with primary (n=295) or secondary (n=627) Gleason 5 on biopsy.

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Background: To analyze oncological outcomes of very high-risk patients with initial PSA 50-99.9 and ≥100 ng/ml who underwent radical prostatectomy (RP) for clinically localized prostate cancer.

Methods: Overall, 2,811 RP patients (1992-2018) with negative preoperative CT-scan and bone scintigraphy were included.

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Background: To examine the impact of different pretreatment definitions on biochemical recurrence (BCR)-free survival, metastasis-free survival, and cancer-specific survival after radical prostatectomy.

Methods: Overall, 26,364 patients with clinically localized disease who underwent radical prostatectomy at a single institution (1992-2017) were retrospectively analyzed. Seven pretreatment definitions of high-risk CaP (prostate-specific antigen [PSA] ≥20 ng/ml, clinical stage ≥T2c, clinical stage T3 [cT3], biopsy Gleason score [GS] 8-10 [Grade Group {GG} IV-V], biopsy GS 9 to 10 [GG V], D'Amico risk definition, National Comprehensive Cancer Network risk definition) were evaluated.

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