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Inflammation and Prostate Cancer

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https://www.readbyqxmd.com/read/28096923/role-of-neutrophil-to-lymphocyte-ratio-in-prediction-of-gleason-score-upgrading-and-disease-upstaging-in-low-risk-prostate-cancer-patients-eligible-for-active-surveillance
#1
Mehmet Ilker Gokce, Semih Tangal, Nurullah Hamidi, Evren Suer, Muhammed Arif Ibis, Yasar Beduk
INTRODUCTION: Active surveillance (AS) is an option for management of low-risk prostate cancer (PCa). However, grade and stage progression is an important consideration. Neutrophil-to-lymphocyte ratio (NLR) is a useful marker of cancer-related inflammation. In this study, we aimed to identify the roles of neutrophil count (NC), lymphocyte count (LC), and NLR to predict Gleason score (GS) upgrading, disease upstaging, and biochemical recurrence rates (BCR) in low-risk PCa patients. METHODS: We retrospectively evaluated data of 210 low-risk PCa patients eligible for AS, but who underwent radical prostatectomy...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28089917/micrornas-and-dicer1-are-regulated-by-1-25-dihydroxyvitamin-d-in-prostate-stroma
#2
Shweta Dambal, Angeline A Giangreco, Andres M Acosta, Andrew Fairchild, Zachary Richards, Ryan Deaton, Dennis Wagner, Reinhold Vieth, Peter H Gann, Andre Kajdacsy-Balla, Theodorus Van der Kwast, Larisa Nonn
Vitamin D deficiency increases the risk of lethal prostate adenocarcinomas (PCa) and the majority of older men are deficient. Although PCa arises from the epithelium, the surrounding stroma has hormonal regulatory control over the epithelium and contributes to carcinogenesis. Herein, we describe regulation of microRNAs (miRs) by the active hormone dihydroxyvitamin D (1,25(OH)2D) in human prostate stroma. 1,25(OH)2D binds the vitamin D receptor (VDR) transcription factor to regulate gene expression, including miRs, which have emerged as potent regulators of protein expression...
January 12, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28077171/prostate-specific-il-6-transgene-autonomously-induce-prostate-neoplasm-through-amplifying-inflammation-in-the-prostate-and-peri-prostatic-adipose-tissue
#3
Gang Liu, Jinyu Zhang, Lewis Frey, Xiao Gang, Kongming Wu, Qian Liu, Michael Lilly, Jennifer Wu
BACKGROUND: The causative role of the pro-inflammatory cytokine IL-6 in prostate cancer progression has been well established at molecular level. However, whether and how IL-6 may play a role in prostate cancer risk and development is not well defined. One limitation factor to acquiring this knowledge is the lack of appropriate animal models. METHODS: We generated a novel line of prostate-specific IL-6 transgenic mouse model. We compared the prostate pathology, tumorigenic signaling components, and prostate tumor microenvironment of the IL-6 transgenic mice with wild type littermates...
January 11, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28076331/a-short-term-intervention-with-selenium-affects-expression-of-genes-implicated-in-the-epithelial-to-mesenchymal-transition-in-the-prostate
#4
Dieuwertje E G Kok, Lambertus A L M Kiemeney, Gerald W Verhaegh, Jack A Schalken, Emile N J T van Lin, J P Michiel Sedelaar, J Alfred Witjes, Christina A Hulsbergen-van de Kaa, Pieter Van't Veer, Ellen Kampman, Lydia A Afman
In parallel with the inconsistency in observational studies and chemoprevention trials, the mechanisms by which selenium affects prostate cancer risk have not been elucidated. We conducted a randomized, placebo-controlled trial to examine the effects of a short-term intervention with selenium on gene expression in non-malignant prostate tissue. Twenty-three men received 300 µg selenium per day in the form of selenized yeast (n=12) or a placebo (n=11) during 5 weeks. Prostate biopsies collected from the transition zone before and after intervention were analysed for 15 participants (n=8 selenium, n=7 placebo)...
January 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28075422/inflammation-cardiometabolic-markers-and-functional-changes-in-a-randomized-controlled-trial-of-a-12-month-exercise-program-for-prostate-cancer-men
#5
Katarzyna Hojan, Eliza Kwiatkowska-Borowczyk, Ewa Leporowska, Piotr Milecki
INTRODUCTION    Previous studies have shown that physical exercise in cancer patients during radiotherapy (RT) and androgen deprivation therapy (ADT) improves cardiac fitness and quality of life (QoL), and reduces fatigue but it is still not entirely known how it affects inflammation or metabolic factors and what its consequences are in prostate cancer (PCa) patients. OBJECTIVES    Effect of a 12-month physical exercise program on inflammatory and cardiometabolic factors, and on functional status in PCa patients undergoing RT and ADT...
January 10, 2017: Polskie Archiwum Medycyny Wewnętrznej
https://www.readbyqxmd.com/read/28073198/prostatic-calculi-detected-in-peripheral-zone-of-the-gland-during-a-transrectal-ultrasound-biopsy-can-be-significant-predictors-of-prostate-cancer
#6
Lucio Dell'Atti, Andrea B Galosi, Carmelo Ippolito
PURPOSE: Prostatic calculi (PC) are usually associated with benign prostatic hyperplasia or chronic inflammation. However, in several studies prostatic inflammation and calcification have been implicated in the pathogenesis of prostate cancer (CaP). We evaluated the prevalence of PC during transrectal ultrasound (TRUS) and correlate the ultrasonographic patterns with histological findings. METHODS: A prospective study of 664 patients undergoing TRUS and prostate biopsy was planned...
December 30, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28038931/safety-of-same-day-pegfilgrastim-administration-in-metastatic-castration-resistant-prostate-cancer-treated-with-cabazitaxel-with-or-without-carboplatin
#7
Mehmet Asim Bilen, Diana H Cauley, Bradley J Atkinson, Hsiang-Chun Chen, Diana H Kaya, Xuemei Wang, Raghu Vikram, Shi-Ming Tu, Paul G Corn, Jeri Kim
INTRODUCTION: Although myeloid growth factors are commonly used to treat metastatic castration-resistant prostate cancer (mCRPC), the optimal timing of administration has not been well studied. We assessed the effects of same-day pegfilgrastim, a neutrophil stimulator, after cabazitaxel treatment with or without carboplatin in patients with mCRPC. We also evaluated the frequency of urinary tract inflammation during treatment. PATIENTS AND METHODS: Between September 2010 and September 2014, 151 consecutive patients with mCRPC underwent cabazitaxel treatment with or without the addition of carboplatin at a single institution...
December 13, 2016: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28027300/gene-expression-differences-in-prostate-cancers-between-young-and-old-men
#8
Yuanchun Ding, Huiqing Wu, Charles Warden, Linda Steele, Xueli Liu, M van Iterson, Xiwei Wu, Rebecca Nelson, Zheng Liu, Yate-Ching Yuan, Susan L Neuhausen
Prostate cancer incidence is increasing in younger men. We investigated whether men diagnosed with Gleason 7 (3+4) T2 prostate cancer at younger ages (≤ 45 years, young cohort) had different mRNA and miRNA expression profiles than men diagnosed at older ages (71-74 years, older cohort). We identified differentially expressed genes (DEGs) related to tumor-normal differences between the cohorts. Subsequent pathway analysis of DEGs revealed that the young cohort had significantly more pronounced inflammatory and immune responses to tumor development compared to the older cohort...
December 2016: PLoS Genetics
https://www.readbyqxmd.com/read/28024967/extent-of-baseline-prostate-atrophy-is-associated-with-lower-incidence-of-low-and-high-grade-prostate-cancer-on-repeat-biopsy
#9
Dmo Freitas, G L Andriole, R Castro-Santamaria, S J Freedland, D M Moreira
OBJECTIVES: To evaluate whether baseline prostate atrophy (PA) extent is associated with prostate cancer (PCa) incidence at 2-year repeat prostate biopsy in a clinical trial with systematic biopsies. METHODS: We performed a retrospective analysis of 3,165 men 50-75 years-old with prostate-specific antigen (PSA) between 2.5-10ng/mL and a prior negative biopsy in the placebo arm of the Reduction by Dutasteride of PCa Events (REDUCE) trial who underwent a 2-year repeat biopsy...
December 23, 2016: Urology
https://www.readbyqxmd.com/read/28012929/schiff-base-poloxamer-p85-combination-demonstrates-chemotherapeutic-effect-on-prostate-cancer-cells-in-vitro
#10
Selami Demirci, Ayşegül Doğan, Neşe Başak Türkmen, Dilek Telci, Albert A Rizvanov, Fikrettin Şahin
Prostate cancer is a multistep and complicated cancer type that is regulated by androgens at the cellular level and remains the second commonest cause of death among men. Discovery and development of novel chemotherapeutic agents enabling rapid tumor cell death with minimal toxic effects to healthy tissues might greatly improve the safety of chemotherapy. The present study evaluates the anti-cancer activity of a novel heterodinuclear copper(II)Mn(II) complex (Schiff base) in combination with poly(ethylene oxide) and poly(propylene oxide) block copolymer (Pluronic) P85...
December 22, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27994674/obesity-and-cancer-the-role-of-adipose-tissue-and-adipo-cytokines-induced-chronic-inflammation
#11
REVIEW
Rosa Divella, Raffaele De Luca, Ines Abbate, Emanuele Naglieri, Antonella Daniele
Adipose tissue in addition to its ability to keep lipids is now recognized as a real organ with both metabolic and endocrine functions. Recent studies demonstrated that in obese animals is established a status of adipocyte hypoxia and in this hypoxic state interaction between adipocytes and stromal vascular cells contribute to tumor development and progression. In several tumors such as breast, colon, liver and prostate, obesity represents a poor predictor of clinical outcomes. Dysfunctional adipose tissue in obesity releases a disturbed profile of adipokines with elevated levels of pro-inflammatory factors and a consequent alteration of key signaling mediators which may be an active local player in establishing the peritumoral environment promoting tumor growth and progression...
2016: Journal of Cancer
https://www.readbyqxmd.com/read/27987276/in-gantry-mri-guided-prostate-biopsy-diagnosis-of-prostatitis-and-its-relationship-with-pirads-v-2-based-score
#12
Rajeev Jyoti, Noel Hamesh Jina, Hodo Z Haxhimolla
INTRODUCTION: The recent literature has focussed predominantly on prostate cancer detection which has been revolutionized by multiparametric magnetic resonance imaging (mpMRI). Due to an overlap of features, prostatitis may mimic prostate cancer on MRI, especially in patients with chronic prostatitis. We retrospectively analysed our in-gantry MRI-guided biopsy (MRGB) results to determine incidental detection rate of prostatitis in Prostate Imaging Reporting and Data System (PIRADS) 3, 4 and 5 foci reported on diagnostic MRI of the prostate...
December 16, 2016: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/27968904/aspirin-and-levofloxacin-for-the-prevention-of-the-occurrence-of-prostate-cancer-or-transformation-to-castration-resistant-prostate-cancer-a-two-part-open-label-randomised-controlled-study
#13
Lu Yang, Yongji Chen, Zhuang Tang, Wenbin Xue, Shi Qiu, Ping Tan, Qiang Wei
BACKGROUND: The role that inflammation plays in the development of prostate cancer is unknown. We aimed to assess whether an anti-inflammatory drug or antibiotic, or both, could prevent prostate cancer occurrence and delay transformation to castration-resistant prostate cancer. METHODS: This open-label, randomised, controlled trial recruited participants who had undergone a prostate biopsy in West China Hospital of Sichuan University. Participants older than 40 years pathologically confirmed not to have prostate cancer but who had a prostate with inflammatory cell infiltration were assigned to the prostate cancer prevention (PCP) trial, and those older than 50 years who had pathological results of prostate cancer and were suitable for only androgen-deprivation therapy were assigned to the castration-resistant prostate cancer prevention (C-RPCP) trial...
October 2016: Lancet
https://www.readbyqxmd.com/read/27966209/doxycycline-down-regulates-matrix-metalloproteinase-expression-and-inhibits-nf-%C3%AE%C2%BAb-signaling-in-lps-induced-pc3-cells
#14
Deniz Ogut, Buket Reel, Ceren Gonen Korkmaz, Mehmet Zuhuri Arun, Serap Cilaker Micili, Bekir Ugur Ergur
INTRODUCTION: Matrix metalloproteinase enzymes (MMPs) play important role in inflammation, malignant cell proliferation, invasion and angiogenesis by mediating extracellular matrix degradation. Doxycycline, a synthetic tetracycline, behaves as a MMP inhibitor at a subantimicrobial dose and inhibits tumor cell proliferation, invasion and angiogenesis. The aberrant activity of nuclear factor kappa B (NF-κB) causes activation of MMPs and thereby proliferation and invasion of cancer cells...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/27956668/the-inflammasome-as-a-target-for-pain-therapy
#15
H Zhang, F Li, W-W Li, C Stary, J D Clark, S Xu, X Xiong
The interleukin-1 family of cytokines are potent inducers of inflammation and pain. Proteolytic activation of this family of cytokines is under the control of several innate immune receptors that coordinate to form large multiprotein signalling platforms, termed inflammasomes. Recent evidence suggests that a wide range of inflammatory diseases, cancers, and metabolic and autoimmune disorders, in which pain is a common complaint, may be coordinated by inflammasomes. Activation of inflammasomes results in cleavage of caspase-1, which subsequently induces downstream initiation of several potent pro-inflammatory cascades...
December 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27936891/comparison-of-different-contouring-definitions-of-the-rectum-as-organ-at-risk-oar-and-dose-volume-parameters-predicting-rectal-inflammation-in-radiotherapy-of-prostate-cancer-which-definition-to-use
#16
Nitsche M, Brannath W, Brückner M, Wagner D, Kaltenborn A, Temme N, Hermann Rm
OBJECTIVES: The objective of this retrospective planning study was to find a contouring definition for the rectum as an organ at risk (OAR) in curative 3D external beam radiotherapy (EBRT) for prostate cancer (PCa) with a predictive correlation between dose-volume-histograms (DVH) and rectal toxicity. METHODS: In a pre-study the planning CT scans of n= 23 patients with PCa receiving definitive EBRT were analysed. The rectum was contoured according to 13 different definitions, and the dose distribution was correlated with the respective rectal volumes by generating DVH curves...
December 12, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27931833/hyperglycemia-tumorigenesis-and-chronic-inflammation
#17
REVIEW
Shu-Chun Chang, Wei-Chung Vivian Yang
Hyperglycemia is the most prominent sign that characterizes diabetes. Hyperglycemia favors malignant cell growth by providing energy to cancer cells. Clinical studies also showed an increased risk of diabetes being associated with different types of cancers. In addition, poorly regulated glucose metabolism in diabetic patients is often found with increased levels of chronic inflammatory markers, e.g., interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α, and emerging evidence has highlighted activation of the immune response in the progression and development of cancer cells...
December 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27931798/differential-expression-of-low-density-lipoprotein-receptor-related-protein-1-lrp-1-and-matrix-metalloproteinase-9-mmp-9-in-prostate-gland-from-normal-to-malignant-lesions
#18
Mónica B Gilardoni, María M Remedi, Mabel Oviedo, Tristán Dellavedova, Juan P Sarría, Laura Racca, Mariana Dominguez, Claudia G Pellizas, Ana C Donadio
BACKGROUND: Metalloproteinases (MMPs) are relevant modulators of inflammation, tumor microenvironment, cancer invasion and metastasis. They can be regulated by the Low density lipoprotein Receptor-related Protein 1 (LRP-1), a receptor reported to mediate the clearance of lipoproteins, extracellular matrix (ECM) macromolecules and proteinases. The aim of this study was to evaluate the expression of LRP-1, MMP-2 and MMP-9 across various grades of prostatic diseases as benign prostatic hyperplasia (BPH), BPH plus prostatitis (BPH+P), high grade prostatic intraepithelial neoplasia (HGPIN) and prostate cancer (PCa)...
January 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/27931022/hydrogen-sulfide-and-t-type-ca2-channels-in-pain-processing-neuronal-differentiation-and-neuroendocrine-secretion
#19
Kazuki Fukami, Fumiko Sekiguchi, Atsufumi Kawabata
BACKGROUND: Hydrogen sulfide (H2S), a gasotransmitter, is generated from L-cysteine by mainly 3 enzymes, cystathionine-γ-lyase (CSE), cystathionine-β-synthase, and 3-mercaptopyruvate sulfurtransferase in cooperation with cysteine aminotransferase. The H2S-forming enzymes, particularly CSE, are overexpressed under the pathological conditions such as inflammation, neuronal or neuroendocrine differentiation and cancer development. Given that Cav3.2 T-type Ca2+ channels mediate some of the biological activity of H2S, we focus on the role of the H2S/Cav3...
December 9, 2016: Pharmacology
https://www.readbyqxmd.com/read/27926866/inflammation-induced-oxidative-stress-mediates-gene-fusion-formation-in-prostate-cancer
#20
Ram S Mani, Mohammad A Amin, Xiangyi Li, Shanker Kalyana-Sundaram, Brendan A Veeneman, Lei Wang, Aparna Ghosh, Adam Aslam, Susmita G Ramanand, Bradley J Rabquer, Wataru Kimura, Maxwell Tran, Xuhong Cao, Sameek Roychowdhury, Saravana M Dhanasekaran, Nallasivam Palanisamy, Hesham A Sadek, Payal Kapur, Alisa E Koch, Arul M Chinnaiyan
Approximately 50% of prostate cancers are associated with gene fusions of the androgen-regulated gene TMPRSS2 to the oncogenic erythroblast transformation-specific (ETS) transcription factor ERG. The three-dimensional proximity of TMPRSS2 and ERG genes, in combination with DNA breaks, facilitates the formation of TMPRSS2-ERG gene fusions. However, the origins of DNA breaks that underlie gene fusion formation in prostate cancers are far from clear. We demonstrate a role for inflammation-induced oxidative stress in the formation of DNA breaks leading to recurrent TMPRSS2-ERG gene fusions...
December 6, 2016: Cell Reports
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