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Inflammation and Prostate Cancer

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https://www.readbyqxmd.com/read/28725594/weekly-ascorbic-acid-infusion-in-castration-resistant-prostate-cancer-patients-a-single-arm-phase-ii-trial
#1
Torben K Nielsen, Martin Højgaard, Jon T Andersen, Niklas Rye Jørgensen, Bo Zerahn, Bent Kristensen, Trine Henriksen, Jens Lykkesfeldt, Kári J Mikines, Henrik E Poulsen
BACKGROUND: Ascorbic acid (AA) has in vivo cytotoxic properties at concentrations that can only be achieved through intravenous (IV) administration in humans. Treatment with intravenous AA is widely and increasingly used in complementary medicine despite a lack of clinical evidence for the efficacy of this treatment. METHODS: This non-comparative, single-center, phase II trial included patients with chemotherapy-naïve, metastatic castration-resistant prostate cancer (mCRPC) from an outpatient clinic to evaluate the efficacy and safety of IV AA therapy...
June 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28723469/inflammation-microbiota-and-prostate-cancer
#2
REVIEW
Martin Puhr, Angelo De Marzo, William Isaacs, Marshall Scott Lucia, Karen Sfanos, Srinivasan Yegnasubramanian, Zoran Culig
CONTEXT: Chronic inflammation of the prostate has been associated with preneoplastic lesions and cancer development. Multiple causes have been considered for chronic inflammation of the prostate. Inflammatory cytokines such as interleukins are implicated in prostate carcinogenesis and development. OBJECTIVE: To evaluate literature published on etiological factors, urinary microbiota, morphological features of proliferative inflammatory atrophy and high-grade prostate intraepithelial neoplasia, genetic polymorphisms, inflammatory stress, and cytokine signaling...
October 2016: European Urology Focus
https://www.readbyqxmd.com/read/28703328/insight-into-infection-mediated-prostate-damage-contrasting-patterns-of-c-reactive-protein-and-prostate-specific-antigen-levels-during-infection
#3
Melissa Milbrandt, Anke C Winter, Remington L Nevin, Ratna Pakpahan, Gary Bradwin, Angelo M De Marzo, Debra J Elliott, Charlotte A Gaydos, William B Isaacs, William G Nelson, Nader Rifai, Lori J Sokoll, Jonathan M Zenilman, Elizabeth A Platz, Siobhan Sutcliffe
BACKGROUND: To investigate mechanisms underlying our previous observation of a large rise in serum prostate-specific antigen, a marker of prostate pathology, during both sexually transmitted and systemic infections, we measured serum high-sensitivity C-reactive protein (hsCRP), a marker of systemic inflammation, in our previous case-control study of young, male US military members and compared our findings to those for PSA. METHODS: We measured hsCRP before and during infection for 299 chlamydia, 112 gonorrhea, and 59 non-chlamydial, non-gonococcal urethritis (NCNGU) cases; before and after infection for 55 infectious mononucleosis (IM) and 90 other systemic/non-genitourinary cases; and for 220-256 controls...
July 12, 2017: Prostate
https://www.readbyqxmd.com/read/28675175/telomeres-and-telomerase-in-prostate-cancer-development-and-therapy
#4
REVIEW
Mindy Kim Graham, Alan Meeker
Aberrations in telomere biology are among the earliest events in prostate cancer tumorigenesis and continue during tumour progression. Substantial telomere shortening occurs in prostate cancer cells and high-grade prostatic intraepithelial neoplasia. Not all mechanisms of telomere shortening are understood, but oxidative stress from local inflammation might accelerate prostatic telomere loss. Critically short telomeres can drive the accumulation of tumour-promoting genomic alterations; however, continued telomere erosion is unsustainable and must be mitigated to ensure cancer cell survival and unlimited replication potential...
July 4, 2017: Nature Reviews. Urology
https://www.readbyqxmd.com/read/28667123/mutant-p53-potentiates-the-oncogenic-effects-of-insulin-by-inhibiting-the-tumor-suppressor-dab2ip
#5
Elena Valentino, Arianna Bellazzo, Giulio Di Minin, Daria Sicari, Mattia Apollonio, Giosuè Scognamiglio, Maurizio Di Bonito, Gerardo Botti, Giannino Del Sal, Licio Collavin
Obesity and type 2 diabetes are significant risk factors for malignancies, being associated with chronic inflammation and hyperinsulinemia. In this context, insulin can synergize with inflammation to promote proliferation, survival, and dissemination of cancer cells. Point mutation of p53 is a frequent event and a significant factor in cancer development and progression. Mutant p53 protein(s) (mutp53) can acquire oncogenic properties that increase metastasis, proliferation, and cell survival. We report that breast and prostate cancer cells with mutant p53 respond to insulin stimulation by increasing cell proliferation and invasivity, and that such a response depends on the presence of mutp53...
June 30, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28663562/expression-analysis-of-inflammasome-sensors-and-implication-of-nlrp12-inflammasome-in-prostate-cancer
#6
Dev Karan, Ossama Tawfik, Seema Dubey
Inflammasomes are multi-proteins complex regulating inflammation-associated signaling. While inflammation plays a critical role in cancer cell growth, studies remain uncharacterized on the role of inflammasomes in prostate cancer. Using Gene Expression Omnibus (GEO) public datasets, we screened the expression profiles of inflammasome sensors NLRP3, NLRC4, NLRP6, NRLP12, and AIM2 in prostate tumor tissues, and verified their mRNA level in a panel of prostate cancer cell lines. The selected expression of NLRP3 and NLRP12 inflammasomes was validated, and the clinical association was evaluated in human prostate archival tumor tissues...
June 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28656060/pet-tracer-18-f-fluciclovine-can-detect-histologically-proven-bone-metastatic-lesions-a-preclinical-study-in-rat-osteolytic-and-osteoblastic-bone-metastasis-models
#7
Shuntaro Oka, Masaru Kanagawa, Yoshihiro Doi, David M Schuster, Mark M Goodman, Hirokatsu Yoshimura
(18)F-Fluciclovine (trans-1-amino-3-(18)F-fluorocyclobutanecarboxylic acid; anti-(18)F-FACBC) is a positron emission tomography (PET) tracer for diagnosing cancers (e.g., prostate and breast cancer). The most frequent metastatic organ of these cancers is bone. Fluciclovine-PET can visualize bony lesions in clinical practice; however, such lesions have not been described histologically. Methods: We investigated the potential of (14)C-fluciclovine in aiding the visualization of osteolytic and osteoblastic bone metastases (with histological analyses), compared with (3)H-2-deoxy-2-fluoro-D-glucose ((3)H-FDG), (3)H-choline chloride ((3)H-choline), and (99m)Tc-hydroxymethylene diphosphonate ((99m)Tc-HMDP) by using triple-tracer autoradiography in rat breast cancer osteolytic (on day 12 ± 1 postinjection of MRMT-1) and prostate cancer osteoblastic (on day 20 ± 3 postinjection of AT6...
2017: Theranostics
https://www.readbyqxmd.com/read/28653675/periprostatic-adipose-inflammation-is-associated-with-high-grade-prostate-cancer
#8
A Gucalp, N M Iyengar, X K Zhou, D D Giri, D J Falcone, H Wang, S Williams, M D Krasne, I Yaghnam, B Kunzel, P G Morris, L W Jones, M Pollak, V P Laudone, C A Hudis, H I Scher, P T Scardino, J A Eastham, A J Dannenberg
BACKGROUND: Obesity, a cause of subclinical inflammation, is associated with increased risk of high-grade prostate cancer (PC) and poor outcomes. Whether inflammation occurs in periprostatic white adipose tissue (WAT), and contributes to the negative impact of obesity on PC aggressiveness, is unknown. METHODS: In a single-center, cross-sectional design, men with newly diagnosed PC undergoing radical prostatectomy were eligible for study participation. The primary objective was to examine the prevalence of periprostatic WAT inflammation defined by the presence of crown-like structures (CLS-P) as detected by CD68 immunohistochemistry...
June 27, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28648062/resveratrol-improved-the-progression-of-chronic-prostatitis-via-the-downregulation-of-c-kit-scf-by-activating-sirt1
#9
Yi He, Huizhi Zeng, Yang Yu, Jiashu Zhang, Xiaona Zeng, Fengtao Gong, Xingping Duan, Qi Liu, Bo Yang
The regulation mechanism of inflammation inducing prostate carcinogenesis remains largely unknown. Therefore, we investigated the role of the c-kit/SCF pathway, which has been associated with the control of prostate carcinogenesis, in chronic prostatitis (CP) rats and evaluated the anti-prostatitis effect of resveratrol. We performed hemolysin and eosin staining to evaluate the histopathological changes in prostates. Multiple approaches evaluated the expression levels of c-kit, stem cell factor (SCF), Sirt1, and carcinogenesis-associated proteins...
July 5, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28618670/re-low-cd38-identifies-progenitor-like-inflammation-associated-luminal-cells-that-can-initiate-human-prostate-cancer-and-predict-poor-outcome
#10
https://www.readbyqxmd.com/read/28611094/agonist-specific-protein-interactomes-of-glucocorticoid-and-androgen-receptor-as-revealed-by-proximity-mapping
#11
Joanna K Lempiäinen, Einari A Niskanen, Kaisa-Mari Vuoti, Riikka E Lampinen, Helka Göös, Markku Varjosalo, Jorma J Palvimo
Glucocorticoid receptor (GR) and androgen receptor (AR) are steroid-inducible transcription factors (TFs). GR and AR are central regulators of various metabolic, homeostatic and differentiation processes and hence important therapeutic targets, especially in inflammation and prostate cancer, respectively. Hormone binding to these steroid receptors (SRs) leads to DNA binding and activation or repression of their target genes with the aid of interacting proteins, coregulators. However, protein interactomes of these important drug targets have remained poorly defined...
June 13, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28606735/neutrophil-to-lymphocyte-ratio-in-castration-resistant-prostate-cancer-patients-treated-with-daily-oral-corticosteroids
#12
Niven Mehra, Adam Sharp, David Lorente, David Dolling, Semini Sumanasuriya, Bernadette Johnson, David Dearnaley, Chris Parker, Johann de Bono
BACKGROUND: The neutrophil to lymphocyte ratio (NLR) has been shown to be highly prognostic across many tumor types, and predictive of treatment outcome in advanced prostate cancer, and has been postulated to be an indirect measure of tumor inflammation. We evaluated the effect of low-dose steroids on NLR in men suffering from castration-resistant prostate cancer (CRPC). PATIENTS AND METHODS: The NLR was evaluated in a prospective randomized phase II trial that compared prednisolone 5 mg twice daily and dexamethasone 0...
May 10, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28593171/withania-somnifera-targets-interleukin-8-and-cyclooxygenase-2-in-human-prostate-cancer-progression
#13
Anand Setty Balakrishnan, Abel Arul Nathan, Mukesh Kumar, Sudhakar Ramamoorthy, Sathish Kumar Ramia Mothilal
BACKGROUND: Prostate cancer (PC) is a common noncutaneous malignancy in men. The incidence of PC is increasing at an alarming rate across the globe. Progression of PC is associated with elevated levels of interleukin-8 (IL-8) and cyclooxygenase-2 (COX-2) in malignant cells. Overexpression of these players is accompanied by chronic inflammation, increased angiogenesis, proliferation, migration, and inhibition of apoptosis. Moreover, their elevated circulating levels promote the disease progression from androgen-dependent to androgen-independent state...
June 2017: Prostate International
https://www.readbyqxmd.com/read/28585572/the-combination-of-histological-prostate-atrophy-and-inflammation-is-associated-with-lower-risk-of-prostate-cancer-in-biopsy-specimens
#14
D M Moreira, D M de O Freitas, J C Nickel, G L Andriole, R Castro-Santamaria, S J Freedland
BACKGROUND: To evaluate whether the presence of both prostate atrophy (PA) and chronic prostate inflammation (CPI) in the same biopsy and in the same biopsy core are associated with prostate cancer (PCa) risk and grade in repeat biopsies. METHODS: Retrospective analyses of 6132 men who were 50-75 years old undergoing 2-year repeat prostate biopsy after a negative baseline biopsy for PCa in the REduction by DUtasteride of prostate Cancer Events (REDUCE) study. PA, CPI and PCa were determined by central pathology...
June 6, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28575697/pet-ct-with-18-f-choline-physiological-whole-bio-distribution-in-male-and-female-subjects-and-diagnostic-pitfalls-on-1000-prostate-cancer-patients-18-f-choline-pet-ct-bio-distribution-and-pitfalls-a-southern-italian-experience
#15
Ferdinando Calabria, Agostino Chiaravalloti, Carmelo Cicciò, Vincenzo Gangemi, Domenico Gullà, Federico Rocca, Gianpasquale Gallo, Giuseppe Lucio Cascini, Orazio Schillaci
INTRODUCTION: The (11)C/(18)F-choline is a PET/CT radiopharmaceutical useful in detecting tumors with high lipogenesis. (11)C/(18)F-choline uptake can occur in physiological conditions or tumors. The knowledge of its bio-distribution is essential to recognize physiologic variants or diagnostic pitfalls. Moreover, few information are available on the bio-distribution of this tracer in female patients. Our aim was to discuss some documented (18)F-choline PET/CT pitfalls in prostate cancer patients...
August 2017: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/28567040/a-unique-cellular-and-molecular-microenvironment-is-present-in-tertiary-lymphoid-organs-of-patients-with-spontaneous-prostate-cancer-regression
#16
María de la Luz García-Hernández, Norma Ofelia Uribe-Uribe, Ricardo Espinosa-González, W Martin Kast, Shabaana A Khader, Javier Rangel-Moreno
OBJECTIVE: Multiple solid cancers contain tertiary lymphoid organs (TLO). However, it is unclear whether they promote tumor rejection, facilitate tumor evasion, or simply whether they are a byproduct of chronic inflammation. We hypothesize that although chronic inflammation induces TLO formation, the tumor milieu can modulate TLO organization and functions in prostate cancer. Therefore, our study seeks to elucidate the cellular and molecular signatures in unique prostatectomy specimens from evanescent carcinoma patients to identify markers of cancer regression, which could be harnessed to modulate local immunosuppression or potentially enhance TLO function...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28560677/mesenchymal-epithelial-transition-and-circulating-tumor-cells-in-small-cell-lung-cancer
#17
Gerhard Hamilton, Barbara Rath
Cancer patients die of metastatic disease but knowledge regarding individual steps of this complex process of intravasation, spread and extravasation leading to secondary lesions is incomplete. Subpopulations of tumor cells are supposed to undergo an epithelial-mesenchymal transition (EMT), to enter the bloodstream and eventually establish metastases in a reverse process termed mesenchymal-epithelial transition (MET). Small cell lung cancer (SCLC) represents a unique model to study metastatic spread due to early dissemination and relapse, as well as availability of a panel of circulating cancer cell (CTC) lines recently...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28560449/hypoxia-induced-angiopoietin-like-protein-4-as-a-clinical-biomarker-and-treatment-target-for-human-prostate-cancer
#18
Shinro Hata, Takeo Nomura, Kazunori Iwasaki, Ryuta Sato, Mutsushi Yamasaki, Fuminori Sato, Hiromitsu Mimata
Angiopoietin-like protein 4 (ANGPTL4) is a multifunctional protein, playing roles in glucose and lipid metabolism, inflammation, angiogenesis, and tumorigenesis. Recent research suggests that ANGPTL4 is induced by hypoxia and is a useful diagnostic or prognostic marker for various cancers. However, it remains unclear whether ANGPTL4 expression influences prostate cancer. Here we examined the biological and clinical relevance of ANGPTL4 expression in prostate cancer. Firstly we examined ANGPTL4 expression in the prostate cancer cell lines LNCaP and LNCaP/CH incubated at 1% O2 for at least 6 months...
May 24, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28557546/inflammation-associated-dna-methylation-patterns-in-epithelium-of-ulcerative-colitis
#19
Alan Barnicle, Cathal Seoighe, John M Greally, Aaron Golden, Laurence J Egan
Aberrant DNA methylation patterns have been reported in inflamed tissues and may play a role in disease. We studied DNA methylation and gene expression profiles of purified intestinal epithelial cells from ulcerative colitis patients, comparing inflamed and non-inflamed areas of the colon. We identified 577 differentially methylated sites (false discovery rate <0.2) mapping to 210 genes. From gene expression data from the same epithelial cells, we identified 62 differentially expressed genes with increased expression in the presence of inflammation at prostate cancer susceptibility genes PRAC1 and PRAC2...
May 30, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/28550641/a-fascia-lata-free-flap-in-pelvic-exenteration-for-fournier-gangrene-due-to-advanced-rectal-cancer-a-case-report
#20
Hiroshi Sawayama, Nobutomo Miyanari, Hidetaka Sugihara, Shiro Iwagami, Takao Mizumoto, Tatsuo Kubota, Yoshio Haga, Hideo Baba
BACKGROUND: Fournier gangrene due to advanced rectal cancer is a rapidly progressive gangrene of the perineum and buttocks. Emergency surgical debridement of necrotic tissue is crucial, and secondary surgery to resect tumors is necessary for wound healing. However, pelvic exenteration damages the pelvic floor, increasing the likelihood of herniation of internal organs into the infectious wound. The management of pelvic exenteration for rectal cancer with Fournier gangrene has not yet been established...
December 2017: Surgical Case Reports
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