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https://www.readbyqxmd.com/read/28334950/downstream-targets-of-gwas-detected-genes-for-breast-lung-and-prostate-and-colon-cancer-converge-to-g1-s-transition-pathway
#1
Olga Y Gorlova, Eugene I Demidenko, Christopher I Amos, Ivan P Gorlov
Genome-wide association studies (GWASs) identified over 500 single nucleotide polymorphisms (SNPs) influencing cancer risk. It is logical to expect the cancer-associated genes to cluster in pathways directly involved in carcinogenesis, e.g. cell cycle. Nevertheless, analyses of the GWAS-detected cancer risk genes usually show no or weak enrichment by known cancer genes.We hypothesized that GWAS-detected cancer risk-associated genes function as upstream regulators of the genes directly involved in carcinogenesis...
March 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28333214/-forever-young-%C3%A2-testosterone-replacement-therapy-a-blockbuster-drug-despite-flabby-evidence-and-broken-promises
#2
Andrea Busnelli, Edgardo Somigliana, Paolo Vercellini
In the last decade, testosterone replacement therapy (TRT) has been increasingly prescribed to treat a controversial condition known as 'late-onset hypogonadism (LOH)'. This syndrome is diagnosed in men who, for no discernible reason other than older age, obesity or ill health have serum testosterone concentrations below the normal range for healthy young men and report one or more of the following symptoms: muscle weakness or wasting, mood, behaviour and cognition-related symptoms and sexual function or libido impairment...
February 23, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28325650/the-potential-role-of-follicle-stimulating-hormone-in-the-cardiovascular-metabolic-skeletal-and-cognitive-effects-associated-with-androgen-deprivation-therapy
#3
REVIEW
E David Crawford, Andrew V Schally, Jehonathan H Pinthus, Norman L Block, Ferenc G Rick, Marc B Garnick, Robert H Eckel, Thomas E Keane, Neal D Shore, David N Dahdal, Thomas J R Beveridge, Dennis C Marshall
PURPOSE: To explore how follicle-stimulating hormone (FSH) may contribute to cardiovascular, metabolic, skeletal, and cognitive events in men treated for prostate cancer, with various forms of androgen deprivation therapy (ADT). MATERIALS AND METHODS: A colloquium of prostate cancer experts was convened in May 2015, to discuss the role of FSH in the development of unwanted effects associated with ADT. Subsequently, a literature review (Medline, PubMed, and relevant congress abstract databases) was performed to further explore and evaluate the collected evidence...
March 18, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28324844/serotonin-transporter-and-receptor-ligands-with-antidepressant-activity-as-neuroprotective-and-proapoptotic-agents
#4
REVIEW
Zdzislaw Chilmonczyk, Andrzej J Bojarski, Andrzej Pilc, Ingebrigt Sylte
Serotonin exhibits multiple non-neural functions involved in essential hypertension, early embryogenesis, follicle maturation and behaviour. The growth stimulatory effects of the neurotransmitter have been described for a variety of cell types. 5-HT was found to induce migration of the human prostate cancer cell lines - PC-3 and Du145 - and several 5-HT1A antagonists and serotonin reuptake inhibitors were reported to inhibit the growth of different tumour cell lines in vitro. Recent studies suggest that neurogenesis is involved in the action of antidepressants and an involvement of antidepressants in adult hippocampal neurogenesis has been demonstrated...
January 22, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28324340/quantitative-18-f-fluorocholine-positron-emission-tomography-for-prostate-cancer-correlation-between-kinetic-parameters-and-gleason-scoring
#5
Joshua J D Schaefferkoetter, Ziting Wang, Mary C Stephenson, Sharmili Roy, Maurizio Conti, Lars Eriksson, David W Townsend, Thomas Thamboo, Edmund Chiong
BACKGROUND: The use of radiolabeled choline as a positron emission tomography (PET) agent for imaging primary tumors in the prostate has been evaluated extensively over the past two decades. There are, however, conflicting reports of its sensitivity and the relationship between choline PET imaging and disease staging is not fully understood. Moreover, relatively few studies have investigated the correlation between tracer uptake and histological tumor grade. This work quantified (18)F-fluorocholine in tumor and healthy prostate tissue using pharmacokinetic modeling and stratified uptake parameters by histology grade...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28324093/association-between-radiation-therapy-surgery-or-observation-for-localized-prostate-cancer-and-patient-reported-outcomes-after-3-years
#6
Daniel A Barocas, JoAnn Alvarez, Matthew J Resnick, Tatsuki Koyama, Karen E Hoffman, Mark D Tyson, Ralph Conwill, Dan McCollum, Matthew R Cooperberg, Michael Goodman, Sheldon Greenfield, Ann S Hamilton, Mia Hashibe, Sherrie H Kaplan, Lisa E Paddock, Antoinette M Stroup, Xiao-Cheng Wu, David F Penson
Importance: Understanding the adverse effects of contemporary approaches to localized prostate cancer treatment could inform shared decision making. Objective: To compare functional outcomes and adverse effects associated with radical prostatectomy, external beam radiation therapy (EBRT), and active surveillance. Design, Setting, and Participants: Prospective, population-based, cohort study involving 2550 men (≤80 years) diagnosed in 2011-2012 with clinical stage cT1-2, localized prostate cancer, with prostate-specific antigen levels less than 50 ng/mL, and enrolled within 6 months of diagnosis...
March 21, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28323334/the-emerging-role-of-homologous-recombination-repair-and-parp-inhibitors-in-genitourinary-malignancies
#7
REVIEW
Kalen J Rimar, Phuoc T Tran, Richard S Matulewicz, Maha Hussain, Joshua J Meeks
As cells age and are exposed to genotoxic stress, preservation of the genomic code requires multiple DNA repair pathways to remove single-strand or double-strand breaks. Loss of function somatic genomic aberrations or germline deficiency in genes involved in DNA repair can result in acute cell death or, after a latency period, cellular transformation. Therapeutic exploitation of DNA repair by inhibition of poly (adenosine diphosphate [ADP]) ribose polymerases (PARP), a family of enzymes involved in the repair of single-strand and in some cases double-strand breaks, has become a novel cancer treatment...
March 21, 2017: Cancer
https://www.readbyqxmd.com/read/28322796/modulation-of-the-sphingolipid-rheostat-is-involved-in-paclitaxel-resistance-of-the-human-prostate-cancer-cell-line-pc3-pr
#8
Yuka Aoyama, Sayaka Sobue, Naoki Mizutani, Chisato Inoue, Yoshiyuki Kawamoto, Yuji Nishizawa, Masatoshi Ichihara, Mamoru Kyogashima, Motoshi Suzuki, Yoshinoti Nozawa, Takashi Murate
Taxoids are anti-cancer drugs frequently used to treat solid tumors, but they are sometimes ineffective and tumors may become resistant to their action. Here, we examined the involvement of sphingolipid metabolic enzymes in paclitaxel (PTX) resistance using a human prostate cancer cell line, PC3, and its PTX-resistant subline, PC3-PR. PTX (20 nM) suppressed cell proliferation and increased various ceramide species in PC3, but not PC3-PR, cells. PC3-PR contained higher S1P levels than did PC3, regardless of PTX treatment...
March 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28321787/a-mathematical-theory-of-shape-and-neuro-fuzzy-methodology-based-diagnostic-analysis-a-comparative-study-on-early-detection-and-treatment-planning-of-brain-cancer
#9
Subrata Kar, D Dutta Majumder
BACKGROUND: Investigation of brain cancer can detect the abnormal growth of tissue in the brain using computed tomography (CT) scans and magnetic resonance (MR) images of patients. The proposed method classifies brain cancer on shape-based feature extraction as either benign or malignant. The authors used input variables such as shape distance (SD) and shape similarity measure (SSM) in fuzzy tools, and used fuzzy rules to evaluate the risk status as an output variable. We presented a classifier neural network system (NNS), namely Levenberg-Marquardt (LM), which is a feed-forward back-propagation learning algorithm used to train the NN for the status of brain cancer, if any, and which achieved satisfactory performance with 100% accuracy...
March 20, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28321130/effective-combinatorial-immunotherapy-for-castration-resistant-prostate-cancer
#10
Xin Lu, James W Horner, Erin Paul, Xiaoying Shang, Patricia Troncoso, Pingna Deng, Shan Jiang, Qing Chang, Denise J Spring, Padmanee Sharma, John A Zebala, Dean Y Maeda, Y Alan Wang, Ronald A DePinho
A significant fraction of patients with advanced prostate cancer treated with androgen deprivation therapy experience relapse with relentless progression to lethal metastatic castration-resistant prostate cancer (mCRPC). Immune checkpoint blockade using antibodies against cytotoxic-T-lymphocyte-associated protein 4 (CTLA4) or programmed cell death 1/programmed cell death 1 ligand 1 (PD1/PD-L1) generates durable therapeutic responses in a significant subset of patients across a variety of cancer types. However, mCRPC showed overwhelming de novo resistance to immune checkpoint blockade, motivating a search for targeted therapies that overcome this resistance...
March 20, 2017: Nature
https://www.readbyqxmd.com/read/28319318/urinary-continence-recovery-after-radical-prostatectomy-anatomic-reconstructive-and-nerve-sparing-techniques-to-improve-outcomes
#11
REVIEW
Christian P Pavlovich, Bernardo Rocco, Sasha C Druskin, John W Davis
In an editorial board moderated debate format, two experts in prostate cancer surgery are challenged with presenting the key strategies in radical prostatectomy that improve urinary functional outcomes. Dr Bernardo Rocco was tasked with arguing the facts that support the anatomic preservation and reconstruction steps that improve continence. Drs. Christian Pavlovich and Sasha Druskin were tasked with arguing the facts supporting neurovascular bundle and high anterior release surgical planes that improve continence...
March 20, 2017: BJU International
https://www.readbyqxmd.com/read/28319243/association-of-antioxidant-supplement-use-and-dementia-in-the-prevention-of-alzheimer-s-disease-by-vitamin-e-and-selenium-trial-preadvise
#12
Richard J Kryscio, Erin L Abner, Allison Caban-Holt, Mark Lovell, Phyllis Goodman, Amy K Darke, Monica Yee, John Crowley, Frederick A Schmitt
Importance: Oxidative stress is an established dementia pathway, but it is unknown if the use of antioxidant supplements can prevent dementia. Objective: To determine if antioxidant supplements (vitamin E or selenium) used alone or in combination can prevent dementia in asymptomatic older men. Design, Setting, and Participants: The Prevention of Alzheimer's Disease by Vitamin E and Selenium (PREADViSE) trial began as a double-blind randomized clinical trial in May 2002, which transformed into a cohort study from September 2009 to May 2015...
March 20, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28319065/the-drebrin-eb3-pathway-drives-invasive-activity-in-prostate-cancer
#13
A E Dart, D C Worth, G Muir, A Chandra, J D Morris, C McKee, C Verrill, R J Bryant, P R Gordon-Weeks
Prostate cancer is the most common cancer in men and the metastatic form of the disease is incurable. We show here that the drebrin/EB3 pathway, which co-ordinates dynamic microtubule/actin filament interactions underlying cell shape changes in response to guidance cues, plays a role in prostate cancer cell invasion. Drebrin expression is restricted to basal epithelial cells in benign human prostate but is upregulated in luminal epithelial cells in foci of prostatic malignancy. Drebrin is also upregulated in human prostate cancer cell lines and co-localizes with actin filaments and dynamic microtubules in filopodia of pseudopods of invading cells under a chemotactic gradient of the chemokine CXCL12...
March 20, 2017: Oncogene
https://www.readbyqxmd.com/read/28317618/mir-1-a-potential-predictive-biomarker-for-recurrence-in-prostate-cancer-after-radical-prostatectomy
#14
Wei Wei, Jiangyong Leng, Hongxiang Shao, Weidong Wang
BACKGROUND: Increasing evidence suggests that aberrant microRNAs expressions are significantly associated with cancer progression. Previous studies have reported that the relative expression of miR-1 is significantly downregulated in recurrent prostate cancer (PCa) samples when compared with nonrecurrent PCa tissues. However, whether miR-1 can serve as a novel predictive biomarker for PCa recurrence still remains unclear. MATERIALS AND METHODS: The patients with clinically localized PCa who underwent radical prostatectomy by the same medical team at the Department of Urology, Ningbo No...
April 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28317280/tobacco-use-and-outcome-in-radical-prostatectomy-patients
#15
Alexandra Curtis, Rochelle Payne Ondracek, Christine Murekeyisoni, Eric Kauffman, James Mohler, James Marshall
Cigarette smoking has been consistently associated with increased risk of overall mortality, but the importance of smoking for patients with prostate cancer (CaP) who are candidates for curative radical prostatectomy (RP) has received less attention. This retrospectively designed cohort study investigated the association of smoking history at RP with subsequent CaP treatment outcomes and overall mortality. A total of 1981 patients who underwent RP at Roswell Park Cancer Institute (RPCI) between 1993 and 2014 were studied...
March 20, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28317267/fear-of-cancer-recurrence-a-significant-concern-among-partners-of-prostate-cancer-survivors
#16
Marieke van de Wal, Simône Langenberg, Marieke Gielissen, Belinda Thewes, Inge van Oort, Judith Prins
OBJECTIVES: The aims of the study were to 1) describe the prevalence of fear of cancer recurrence (FCR) in partners of prostate cancer (PCa) survivors; 2) to compare the proportions of high FCR in partners with high FCR in PCa survivors; 3) to explore partners' demographic and survivors' clinical characteristics associated with high FCR in partners and 4) to identify the relationship between high FCR and health-related quality of life (HRQoL) in partners. METHODS: Questionnaires were sent to partners of disease-free PCa survivors...
March 20, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28316571/anti-cancerous-potential-of-polysaccharide-fractions-extracted-from-peony-seed-dreg-on-various-human-cancer-cell-lines-via-cell-cycle-arrest-and-apoptosis
#17
Fang Zhang, Jun-Jun Shi, Kiran Thakur, Fei Hu, Jian-Guo Zhang, Zhao-Jun Wei
In this study, four homo/heterogenous polysaccharides (HBSS, CHSS, DASS, and CASS) extracted from peony seed dreg with respective molecular weights of 3467, 4677, 229, and 56 kDa were evaluated for anti-cancerous attributes in prostate cancer cells (Pc-3), colon cancer cells (HCT-116), human breast cancer cells (MCF-7), cervical cancer (Hela cells) and human embryonic kidney 293 (HEK 293) cells as control. Among them, CASS and DASS extracted by alkali, consisted of 34.43% Gal, 26.39% Ara, 21.80% Glc and 35...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28314844/abituzumab-targeting-of-alphav-class-integrins-inhibits-prostate-cancer-progression
#18
Yuan Jiang, Jinlu Dai, Zhi Yao, Greg Shelley, Evan T Keller
Integrins that contain an integrin alpha V subunit contribute to multiple functions that promote cancer progression. The goal of this study was to determine if abituzumab (DI17E6, EMD 525797), a humanized monoclonal antibody (mAb) against integrin alpha V impacts, prostate cancer (PCa) progression. To evaluate this, PCa cells were treated with DI17E6 and its effects on proliferation, apoptosis, cell cycle, adhesion, detachment, migration, invasion and phosphorylation of downstream targets, including FAK, Akt and ERK were determined...
March 17, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28303941/alteration-of-osteoblast-arrangement-via-direct-attack-by-cancer-cells-new-insights-into-bone-metastasis
#19
Yumi Kimura, Aira Matsugaki, Aiko Sekita, Takayoshi Nakano
Intact bone tissue exhibits a characteristic anisotropic microstructure derived from collagen fiber alignment and the related c-axis orientation of apatite crystals, which govern the mechanical properties of bone tissue. In contrast, tumor-invaded bone exhibits a disorganized, less-aligned microstructure that results in severely disrupted mechanical function. Despite its importance both in basic principle and in therapeutic applications, the classical understanding of bone metastasis is limited to alterations in bone mass regulated by metastatic cancer cells...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28301631/androgen-receptor-function-and-androgen-receptor-targeted-therapies-in-breast-cancer-a-review
#20
Miho Kono, Takeo Fujii, Bora Lim, Meghan Sri Karuturi, Debasish Tripathy, Naoto T Ueno
Importance: The androgen receptor (AR) pathway is emerging as a potential therapeutic target in breast cancer. To date, AR-targeted drugs have been approved only for treatment of prostate cancer; however, AR-targeted treatment for breast cancer is an area of active investigation. Through review of preclinical studies, retrospective clinical studies, and clinical trials, we examined the biology of AR and AR-related pathways, the potential for AR-targeted therapies in breast cancer, and potential biomarkers for AR-targeted treatments...
March 16, 2017: JAMA Oncology
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