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prostate cancer, prognostic markers

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https://www.readbyqxmd.com/read/27916712/prognostic-significance-of-the-proportion-of-ductal-component-in-ductal-adenocarcinoma-of-the-prostate
#1
Won Sik Jang, Su-Jin Shin, Cheol Yong Yoon, Myung Soo Kim, Dong Hyuk Kang, Yong Jin Kang, Won Sik Jeong, Nam Hoon Cho, Young Deuk Choi
PURPOSE: In prostate cancer, ductal adenocarcinoma is mixed with usual acinar adenocarcinoma. However, whether the proportion of ductal component affects oncologic outcomes is currently unknown. Here, we investigated whether the proportion of the ductal component predicts oncologic outcomes in ductal adenocarcinoma. MATERIALS AND METHODS: We retrospectively reviewed clinical data from 3,038 patients with prostate cancer who underwent radical prostatectomy at our institution between 2005 and 2014...
December 1, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27902483/androgen-receptor-phosphorylation-status-at-serine-578-predicts-poor-outcome-in-prostate-cancer-patients
#2
Patek Sc, Willder Jm, Heng Js, Taylor B, Horgan Pg, Leung Hy, Underwood Ma, Edwards J
PURPOSE: Prostate cancer growth is dependent upon androgen receptor (AR) activation, regulated via phosphorylation. Protein kinase C (PKC) is one kinase that can mediate AR phosphorylation. This study aimed to establish if AR phosphorylation by PKC is of prognostic significance. METHODS: Immunohistochemistry for AR, AR phosphorylated at Ser-81 (pARS81), AR phosphorylated at Ser-578 (pARS578), PKC and phosphorylated PKC (pPKC) was performed on 90 hormone-naïve prostate cancer specimens...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27898031/inherited-variants-in-wnt-pathway-genes-influence-outcomes-of-prostate-cancer-patients-receiving-androgen-deprivation-therapy
#3
Jiun-Hung Geng, Victor C Lin, Chia-Cheng Yu, Chao-Yuan Huang, Hsin-Ling Yin, Ta-Yuan Chang, Te-Ling Lu, Shu-Pin Huang, Bo-Ying Bao
Aberrant Wnt signaling has been associated with many types of cancer. However, the association of inherited Wnt pathway variants with clinical outcomes in prostate cancer patients receiving androgen deprivation therapy (ADT) has not been determined. Here, we comprehensively studied the contribution of common single nucleotide polymorphisms (SNPs) in Wnt pathway genes to the clinical outcomes of 465 advanced prostate cancer patients treated with ADT. Two SNPs, adenomatous polyposis coli (APC) rs2707765 and rs497844, were significantly (p ≤ 0...
November 26, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27890424/recent-scenario-of-microrna-as-diagnostic-and-prognostic-biomarkers-of-prostate-cancer
#4
REVIEW
Kamla Kant Shukla, Sanjeev Misra, Puneet Pareek, Vivek Mishra, Barkha Singhal, Praveen Sharma
Prostate cancer (CaP) is a leading cause of cancer death and displays a broad range of clinical behavior from relatively indolent to aggressive metastatic disease. Due to the alteration and incomplete characterization of the CaP genomic markers, the quest for novel cellular metabolic regulatory molecules like micro RNA (miRNA) as a biomarker could be considered for the prognosis and treatment of CaP in future. In this article, we review the existing literature pertaining to CaP. Study provides a comprehensive miRNA profile expressed in CaP...
November 24, 2016: Urologic Oncology
https://www.readbyqxmd.com/read/27872478/circulating-tumour-cells-as-biomarkers-of-prostate-bladder-and-kidney-cancer
#5
REVIEW
Michael A Gorin, James E Verdone, Emma van der Toom, Trinity J Bivalacqua, Mohamad E Allaf, Kenneth J Pienta
Circulating tumour cells (CTCs) have been studied as biomarkers of a number of solid malignancies. Potential clinical applications for CTC analysis include early cancer detection, disease staging, monitoring for recurrence, prognostication, and to aid in the selection of therapy. In the field of urologic oncology, CTCs have been most widely studied as prognostic biomarkers of castration-resistant prostate cancer. Additionally, emerging data support a role for CTCs to help identify which patients are most likely to respond to novel androgen-pathway targeted therapies, such as abiraterone and enzalutamide...
November 22, 2016: Nature Reviews. Urology
https://www.readbyqxmd.com/read/27871313/conservation-of-immune-gene-signatures-in-solid-tumors-and-prognostic-implications
#6
Julia Chifman, Ashok Pullikuth, Jeff W Chou, Davide Bedognetti, Lance D Miller
BACKGROUND: Tumor-infiltrating leukocytes can either limit cancer growth or facilitate its spread. Diagnostic strategies that comprehensively assess the functional complexity of tumor immune infiltrates could have wide-reaching clinical value. In previous work we identified distinct immune gene signatures in breast tumors that reflect the relative abundance of infiltrating immune cells and exhibited significant associations with patient outcomes. Here we hypothesized that immune gene signatures agnostic to tumor type can be identified by de novo discovery of gene clusters enriched for immunological functions and possessing internal correlation structure conserved across solid tumors from different anatomic sites...
November 22, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27864015/prediction-of-overall-survival-for-patients-with-metastatic-castration-resistant-prostate-cancer-development-of-a-prognostic-model-through-a-crowdsourced-challenge-with-open-clinical-trial-data
#7
Justin Guinney, Tao Wang, Teemu D Laajala, Kimberly Kanigel Winner, J Christopher Bare, Elias Chaibub Neto, Suleiman A Khan, Gopal Peddinti, Antti Airola, Tapio Pahikkala, Tuomas Mirtti, Thomas Yu, Brian M Bot, Liji Shen, Kald Abdallah, Thea Norman, Stephen Friend, Gustavo Stolovitzky, Howard Soule, Christopher J Sweeney, Charles J Ryan, Howard I Scher, Oliver Sartor, Yang Xie, Tero Aittokallio, Fang Liz Zhou, James C Costello
BACKGROUND: Improvements to prognostic models in metastatic castration-resistant prostate cancer have the potential to augment clinical trial design and guide treatment strategies. In partnership with Project Data Sphere, a not-for-profit initiative allowing data from cancer clinical trials to be shared broadly with researchers, we designed an open-data, crowdsourced, DREAM (Dialogue for Reverse Engineering Assessments and Methods) challenge to not only identify a better prognostic model for prediction of survival in patients with metastatic castration-resistant prostate cancer but also engage a community of international data scientists to study this disease...
November 15, 2016: Lancet Oncology
https://www.readbyqxmd.com/read/27842896/kinesin-family-member-11-mrna-expression-predicts-prostate-cancer-aggressiveness
#8
Xuan-Mei Piao, Young Joon Byun, Pildu Jeong, Yun-Sok Ha, Eun Sang Yoo, Seok Joong Yun, Wun-Jae Kim
BACKGROUND: KIF11 (kinesin family member 11), a molecular motor protein, is essential to mitosis and cell cycle progression. Inhibitors of KIF11 have been developed as chemotherapeutic agents for the treatment of various cancers. Regarding prostate cancer (PCa), clinical trials using KIF11 inhibitors for the treatment of castration-resistant PCa have been initiated. We hypothesized that a relationship might exist between KIF11 expression and PCa. To investigate the functional activities and clinical usefulness of KIF11 in PCa, we used quantitative real-time reverse transcriptase polymerase chain reaction to monitor the KIF11 expression patterns...
October 19, 2016: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/27836710/prognostic-significance-of-a-negative-prostate-biopsy-an-analysis-of-subjects-enrolled-in-a-prostate-cancer-screening-trial
#9
Patrick Lewicki, Jonathan Shoag, David M Golombos, Clara Oromendia, Karla V Ballman, Joshua A Halpern, Benjamin V Stone, Padraic O'Malley, Christopher E Barbieri, Douglas S Scherr
PURPOSE: The optimal management of patients following a negative prostate biopsy is unknown. Consequently, resources are increasingly being directed towards risk stratification within this cohort. However the risk of prostate cancer mortality in this group before introduction of supplemental biomarkers and imaging techniques is unclear. MATERIALS AND METHODS: The Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial provides survival data prior to implementation of new diagnostic interventions...
November 8, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27830973/trim21-is-a-novel-regulator-of-par-4-in-colon-and-pancreatic-cancer-cells
#10
Jeffrey Q Nguyen, Rosalyn B Irby
The prostate apoptosis response protein 4 (Par-4) is a tumor-suppressor that has been shown to induce cancer-cell selective apoptosis in a variety of cancers. The regulation of Par-4 expression and activity is a relatively understudied area, and identifying novel regulators of Par-4 may serve as novel therapeutic targets. To identify novel regulators of Par-4, a co-immunoprecipitation was performed in colon cancer cells, and co-precipitated proteins were identified by mass-spectometry. TRIM21 was identified as a novel interacting partner of Par-4, and further shown to interact with Par-4 endogenously and through its PRY-SPRY domain...
November 10, 2016: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/27824162/fibroblast-mir-210-overexpression-is-independently-associated-with-clinical-failure-in-prostate-cancer-a-multicenter-in-situ-hybridization-study
#11
Sigve Andersen, Elin Richardsen, Line Moi, Tom Donnem, Yngve Nordby, Nora Ness, Marte Eilertsen Holman, Roy M Bremnes, Lill-Tove Busund
There is a need for better prognostication in prostate cancer (PC). "The micromanager of hypoxia", microRNA-210 (miR-210) is directly linked to hypoxia, is overexpressed in PC and has been implied in tumor cell-fibroblast crosstalk. We investigated the prognostic impact of miR-210 in tumor cells and fibroblasts in PC. Tumor and stromal samples from a multicenter PC cohort of 535 prostatectomy patients were inserted into tissue microarrays. To investigate the expression of miR-210, we used in situ hybridization and two pathologists semiquantitatively scored its expression...
November 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27818287/clinical-significance-of-epithelial-mesenchymal-transition-emt-markers-in-prostate-cancer
#12
Sandy Figiel, Caroline Vasseur, Franck Bruyere, Francois Rozet, Karine Maheo, Gaelle Fromont
The process of epithelial-to-mesenchymal transition (EMT) contributes to cancer progression, with activation of transcription factors leading to loss of epithelial characteristics and acquirement of mesenchymal properties. We analyzed in human prostate cancer (PCa) the expression of EMT markers at the different stages of PCa natural history, and evaluated its clinical significance. The expression of the key EMT transcription factor Zeb1, together with E-cadherin, vimentin, and N-cadherin, was evaluated by immunohistochemistry on tissue microarrays containing samples of normal prostate (n=58), clinically localized cancer (CLC) (n=242), castration resistant PCa (CRPC) (n=48), and metastases (n=43)...
November 3, 2016: Human Pathology
https://www.readbyqxmd.com/read/27814623/molecular-basis-for-prostate-cancer-racial-disparities
#13
Santosh K Singh, James W Lillard, Rajesh Singh
Prostate cancer (PCa) remains the most common cancer in American men. African-American (AA) men continue to have higher PCa prevalence and mortality rates compared to men in other populations. In addition to socioeconomic factors and lifestyle differences, molecular alterations contribute to this discrepancy. We summarize molecular genetics research results interrelated with the biology of PCa racial disparity. Androgen and androgen receptor (AR) pathways have long been associated with prostate growth. Racial differences have also been found among variants of genes of the enzymes involved in androgen biosynthesis and metabolism...
January 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/27804986/the-translational-potential-of-micrornas-as-biofluid-markers-of-urological-tumours
#14
REVIEW
Annika Fendler, Carsten Stephan, George M Yousef, Glen Kristiansen, Klaus Jung
MicroRNAs (miRNAs) are secreted by cells in vesicles, bound in a ribonucleoprotein complex or as free molecules. These miRNA secretion pathways are dysregulated in cancer, making miRNAs attractive candidate molecules for liquid biopsies. A number of studies have investigated the regulation of miRNA secretion into blood and urine and suggested that miRNAs are noninvasive diagnostic, prognostic and surveillance markers in urological carcinomas, and research in this area has increased over the past 5 years. However, methodological and analytical pitfalls exist and require addressing to enable future translation of the laboratory findings regarding miRNAs as biomarkers into clinical practice in bladder cancer, kidney cancer, prostate cancer and testicular cancer...
December 2016: Nature Reviews. Urology
https://www.readbyqxmd.com/read/27804940/-estimation-of-the-diagnostic-potential-of-apod-ptov1-and-epha4-for-prostatic-neoplasms
#15
D O Allina, Yu Yu Andreeva, L E Zavalishina, L V Moskvina, G A Frank
: Prostate cancer is one of the most frequently detected malignancies in men. The gold standard for its diagnosis is morphological examination; at the same time the differential diagnosis of adenocarcinoma, high-grade prostatic intraepithelial neoplasia (HGPIN), and benign conditions that are able to mimic the malignancies is tremendously difficult in a number of cases, this being so, the hyperdiagnosis rate of HGPIN requiring mandatory repeat biopsy is as high as 24%. The currently available differential diagnostic panel of antibodies is imperfect, which necessitates a search for novel markers...
2016: Arkhiv Patologii
https://www.readbyqxmd.com/read/27790145/systemic-immune-inflammation-index-predicts-the-clinical-outcome-in-patients-with-mcrpc-treated-with-abiraterone
#16
Cristian Lolli, Orazio Caffo, Emanuela Scarpi, Michele Aieta, Vincenza Conteduca, Francesca Maines, Emanuela Bianchi, Francesco Massari, Antonello Veccia, Vincenzo E Chiuri, Gaetano Facchini, Ugo De Giorgi
Background: A systemic immune-inflammation index (SII) based on neutrophil (N), lymphocyte (L), and platelet (P) counts has shown a prognostic impact in several solid tumors. The aim of this study is to evaluate the prognostic role of SII in metastatic castration-resistant prostate cancer (mCRPC) patients treated with abiraterone post docetaxel. Patients and Methods: We retrospectively reviewed consecutive mCRPC patients treated with abiraterone after docetaxel in our Institutions. X-tile 3.6.1 software, cut-off values of SII, neutrophil-to-lymphocyte ratio (NLR) defined as N/L and platelets-to-lymphocyte ratio (PLR) as P/L...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27779679/mir-129-predicts-prognosis-and-inhibits-cell-growth-in-human-prostate-carcinoma
#17
Song Xu, Xiao-Ming Yi, Zheng-Yu Zhang, Jing-Ping Ge, Wen-Quan Zhou
MicroRNAs (miRNAs) are a class of small, well-conserved, non-coding RNAs that are increasingly identified as diagnostic and prognostic biomarkers in a number of cancers. Deregulated miR‑129 is closely associated with tumorigenesis and cancer progression. However, the potential role of miR‑129 in prostate cancer remains largely elusive. The present study investigated the role of miR‑129 as a prognostic biomarker for tumor progression and clinical prognosis in prostate cancer patients. The examined prostate cancer tissues exhibited a significant reduction in miR‑129 expression compared with the normal tissues (P=0...
October 19, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27779102/the-increased-expression-of-fatty-acid-binding-protein-9-in-prostate-cancer-and-its-prognostic-significance
#18
Majed Saad Al Fayi, Xiaojun Gou, Shiva S Forootan, Waseem Al-Jameel, Zhengzheng Bao, Philip R Rudland, Philip A Cornford, Syed A Hussain, Youqiang Ke
In contrast to numerous studies conducted to investigate the crucial role of fatty acid binding protein 5 (FABP5) in prostate cancer, investigations on the possible involvement of other FABPs are rare. Here we first measured the mRNA levels of 10 FABPs in benign and malignant prostate cell lines and identified the differentially expressed FABP6 and FABP9 mRNAs whose levels in all malignant cell lines were higher than those in the benign cells. Thereafter we assessed the expression status of FABP6 and FABP9 in both prostate cell lines and in human tissues...
October 13, 2016: Oncotarget
https://www.readbyqxmd.com/read/27764093/high-caveolin-1-expression-in-tumor-stroma-is-associated-with-a-favourable-outcome-in-prostate-cancer-patients-managed-by-watchful-waiting
#19
Peter Hammarsten, Tove Dahl Scherdin, Christina Hägglöf, Pernilla Andersson, Pernilla Wikström, Pär Stattin, Lars Egevad, Torvald Granfors, Anders Bergh
In the present study we have investigated whether Caveolin-1 expression in non-malignant and malignant prostate tissue is a potential prognostic marker for outcome in prostate cancer patients managed by watchful waiting. Caveolin-1 was measured in prostate tissues obtained through transurethral resection of the prostate from 395 patients diagnosed with prostate cancer. The majority of the patients (n = 298) were followed by watchful waiting after diagnosis. Tissue microarrays constructed from malignant and non-malignant prostate tissue were stained with an antibody against Caveolin-1...
2016: PloS One
https://www.readbyqxmd.com/read/27739310/-glycine-n-methyltransferase-and-malignant-diseases-of-the-prostate
#20
Z Heger, T Eckschlager, M Stiborová, V Adam
BACKGROUND: Prostate cancer (PC) constitutes a heterogeneous group of diseases with high prevalence rates that are still increasing, particularly in western countries. Since 1980, prostate specific antigen (PSA) and other diagnostic approaches have been used for PC screening; however, some of these approaches are often deemed painful and cause invasive damage of tissue. Therefore, molecular approaches to PC diagnosis are attracting increasing attention, potentially providing patients with less stressful situations and providing better diagnoses and even prognostic information...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
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