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https://www.readbyqxmd.com/read/29346310/ar-signaling-in-human-malignancies-prostate-cancer-and-beyond
#1
EDITORIAL
Emmanuel S Antonarakis
The notion that androgens and androgen receptor (AR) signaling are the hallmarks of prostate cancer oncogenesis and disease progression is generally well accepted. What is more poorly understood is the role of AR signaling in other human malignancies. This special issue of Cancers initially reviews the role of AR in advanced prostate cancer, and then explores the potential importance of AR signaling in other epithelial malignancies. The first few articles focus on the use of novel AR-targeting therapies in castration-resistant prostate cancer and the mechanisms of resistance to novel antiandrogens, and they also outline the interaction between AR and other cellular pathways, including PI3 kinase signaling, transcriptional regulation, angiogenesis, stromal factors, Wnt signaling, and epigenetic regulation in prostate cancer...
January 18, 2018: Cancers
https://www.readbyqxmd.com/read/29344699/feasibility-study-of-mr-guided-transgluteal-targeted-in-bore-biopsy-for-suspicious-lesions-of-the-prostate-at-3-tesla-using-a-freehand-approach
#2
Frank Fischbach, Lukas Wien, Sascha Krueger, Bernhard Schnackenburg, Daniel Baumunk, Björn Friebe, Martin Schostak, Jens Ricke, Katharina Fischbach
OBJECTIVE: The aim of our study was (1) to establish an in-bore targeted biopsy of suspicious prostate lesions, avoiding bowel penetration using a transgluteal approach and (2) to assess operator setup, patient comfort and safety aspects in the clinical setting for freehand real-time MR-guidance established for percutaneous procedures in an open MR-scanner. MATERIAL AND METHODS: 30 patients with suspect prostate lesions were biopsied in a cylindrical 3T-MRI system using a transgluteal approach in freehand technique...
January 17, 2018: European Radiology
https://www.readbyqxmd.com/read/29344673/golph2-a-gene-downstream-of-ras-signaling-promotes-the-progression-of-pancreatic-ductal-adenocarcinoma
#3
Juan Duan, Xiaoguang Li, Shan Huang, Yanhua Zeng, Yan He, Hekun Liu, Dexin Lin, Dongdong Lu, Min Zheng
Various studies have previously demonstrated that Golgi protein-73 (GOLPH2) is overexpressed in tumorigenesis, which has been observed in hepatocellular carcinoma and prostate cancer. However, the expression levels and specific functions of GOLPH2 in the progression of pancreatic cancer remain to be elucidated. The present study aimed to investigate the expression of GOLPH2 in pancreatic ductal adenocarcinoma (PDAC) tissues and examined the effects of GOLPH2 on the growth and migration of pancreatic cancer cells...
January 15, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344272/cancer-vaccine-learning-lessons-from-immune-checkpoint-inhibitors
#4
REVIEW
ZhenLong Ye, Qiming Qian, HuaJun Jin, QiJun Qian
Cancer vaccines have been exclusively studied all through the past decades, and have made exceptional achievements in cancer treatment. Few cancer vaccines have been approved by the US Food and Drug Administration (FDA), for instance, Provenge, which was approved for the treatment of prostate carcinoma in 2012. Moreover, more recently, T-VEC got approval for the treatment of melanoma. While, the overall therapeutic effects of cancer vaccines have been taken into consideration as below expectations, low antigenicity of targeting antigen and tumor heterogeneity are the two key limiting barriers encountered by the cancer vaccines...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29340038/diagnostic-performance-of-68gallium-psma-11-pet-ct-to-detect-significant-prostate-cancer-and-comparison-with-18fec-pet-ct
#5
Manuela A Hoffmann, Matthias Miederer, Helmut J Wieler, Christian Ruf, Frank M Jakobs, Mathias Schreckenberger
Background: Radiolabeled prostate-specific membrane antigen (PSMA) has proven to be a highly accurate method to detect recurrence and metastases of prostate cancer, but only sparse data is available about its performance in the diagnosis of clinically significant primary prostate cancer. Methods: We compared 68Ga-PSMA-11 PET/CT in 25 patients with 18FEC PET/CT in 40 patients with suspected prostate carcinoma based on an increased PSA level.The PET/CT results were compared with the histopathologic Gleason Score (GS) of biopsies...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29331752/synthesis-of-gold-i-phosphine-complexes-containing-the-2-brc6f4pph2-ligand-evaluation-of-anticancer-activity-in-2d-and-3d-spheroidal-models-of-hela-cancer-cells
#6
T Srinivasa Reddy, Steven H Privér, Nedaossadat Mirzadeh, Suresh K Bhargava
Newly synthesised mononuclear gold complexes containing the 2-BrC6F4PPh2 ligand have been fully characterised and their anticancer activity towards five human tumor [prostate (PC3), glioblastoma (U87MG), cervical (HeLa), fibrosarcoma (HT1080), ovarian (SKOV-3)] and normal human embryonic kidney (Hek-293T) cell lines investigated. Some of the synthesised gold complexes displayed higher cytotoxicity than cisplatin towards PC-3, HeLa and U87MG cells and inhibited the thioredoxin reductase (TrxR) enzyme, which is considered a potential target for new compounds in cancer treatment...
December 24, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29329342/ternary-copper-ii-complex-nci60-screening-toxicity-studies-and-evaluation-of-efficacy-in-xenograft-models-of-nasopharyngeal-carcinoma
#7
Munirah Ahmad, Shazlan-Noor Suhaimi, Tai-Lin Chu, Norazlin Abdul Aziz, Noor-Kaslina Mohd Kornain, D S Samiulla, Kwok-Wai Lo, Chew-Hee Ng, Alan Soo-Beng Khoo
Copper(II) ternary complex, [Cu(phen)(C-dmg)(H2O)]NO3 was evaluated against a panel of cell lines, tested for in vivo efficacy in nasopharyngeal carcinoma xenograft models as well as for toxicity in NOD scid gamma mice. The Cu(II) complex displayed broad spectrum cytotoxicity against multiple cancer types, including lung, colon, central nervous system, melanoma, ovarian, and prostate cancer cell lines in the NCI-60 panel. The Cu(II) complex did not cause significant induction of cytochrome P450 (CYP) 3A and 1A enzymes but moderately inhibited CYP isoforms 1A2, 2C9, 2C19, 2D6, 2B6, 2C8 and 3A4...
2018: PloS One
https://www.readbyqxmd.com/read/29324665/genome-wide-methylation-patterns-in-androgen-independent-prostate-cancer-cells-a-comprehensive-analysis-combining-medip-bisulfite-rna-and-microrna-sequencing-data
#8
Yumin Wang, Tingting Qin, Wangqiang Hu, Binghua Chen, Meijie Dai, Gang Xu
This study aimed to investigate the mechanisms underlying the development of the androgen-independent phenotype in prostate cancer. Methylation patterns were detected in androgen-independent and androgen-dependent lymph node carcinoma of the prostate (LNCaP) prostate carcinoma cells based on methylated DNA immunoprecipitation-bisulfite sequencing data and differentially methylated regions (DMRs) were identified. Differentially expressed genes (DEGs) and micro RNAs (miRNAs) with DMRs (named MDEGs and MDEmiRNAs) were identified by combining transcriptome and methylation data, and transcription factor (TF)-DEGs with DMRs in promoter (PMDEGs) and MDEmiRNA-MDEGs networks were constructed...
January 11, 2018: Genes
https://www.readbyqxmd.com/read/29315854/predictive-factors-of-biochemical-recurrence-after-radical-prostatectomy-for-high-risk-prostate-cancer
#9
Yukiko Murata, Katsunori Tatsugami, Masahiro Yoshikawa, Masumitsu Hamaguchi, Shigetomo Yamada, Yusuke Hayakawa, Kouhei Ueda, Seiya Momosaki, Naotaka Sakamoto
OBJECTIVE: To identify risk factors of biochemical recurrence after radical prostatectomy in high-risk patients. METHODS: A total of 191 high-risk prostate cancer patients according to the D'Amico classification treated with radical prostatectomy at a single institution between April 2000 and December 2013 were enrolled. The pathological evaluation including intraductal carcinoma of prostate was reassessed, and the clinical and pathological risk factors of biochemical recurrence were analyzed...
January 8, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29315139/-dtpa-pabn-leu5-des-acyl-ghrelin-1-5-as-a-new-carrier-of-radionuclides-and-potential-precursor-of-radiopharmaceuticals
#10
Grzegorz Wójciuk, Marcin Kruszewski
BACKGROUND: Ghrelin is a peptide consisting of 28 aminoacids and an octadecyl side chain (acyl group) binding to the growth hormone secretagogue receptor type 1a (GHS-R1a). Its des-acylated form, des-acyl ghrelin (DAG) binds to the corticotropin releasing factor receptor type 2a (CRF2a) located on endocrine cancer cells such as the prostate carcinoma cell line DU 145. AIM: The aim of this study is to develop a new DAG-based carrier of radionuclides with potential application in therapy...
January 8, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29311669/adipocyte-activated-oxidative-and-er-stress-pathways-promote-tumor-survival-in-bone-via-upregulation-of-heme-oxygenase-1-and-survivin
#11
Mackenzie K Herroon, Erandi Rajagurubandara, Jonathan D Diedrich, Elisabeth I Heath, Izabela Podgorski
Metastatic tumor cells engage the local tumor microenvironment and activate specific pro-survival mechanisms to thrive and progress in the harsh bone marrow niche. Here we show that the major contributors to the survival of carcinoma cells that have colonized the bone marrow are the adipocyte-induced oxidative stress and ER stress pathways. We demonstrate that upon exposure to adipocyte-rich environments in vitro or in vivo, bone-trophic prostate and breast tumor cells upregulate the oxidative stress enzyme, HO-1...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29305565/gstp1-methylation-in-cancer-a-liquid-biopsy-biomarker
#12
REVIEW
Giorgia Gurioli, Filippo Martignano, Samanta Salvi, Matteo Costantini, Roberta Gunelli, Valentina Casadio
The coding region of GSTP1 gene is preceded by a large CpG-rich region that is frequently affected by methylation. In many cancer types, GSTP1 is affected by hypermethylation and, as a consequence, it has a low expression. The aim of this review is to give an overview on GSTP1 methylation studies with a special focus on liquid biopsy, thus to summarize methods, results, sample types, different diseases, to have a complete information regarding this promising epigenetic biomarker. We used all the most valuable scientific search engines (PubMed, Medline, Scopus and Web of Science) searching the following keywords: GSTP1, methylation, cancer, urine, serum, plasma and blood...
January 6, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29303099/-cancer-detection-following-unprovoked-vte-case-history-and-physical-examination-are-still-of-foremost-importance
#13
G J Geersing
The relation between cancer and thrombosis is well known. In fact, the presence of an occult malignancy in patients with unprovoked venous thromboembolism (VTE) is named after a famous 19th century French physician; it is called Trousseau's sign. In this commentary, I elaborate upon findings from a recent individual patient data meta-analysis on Trousseau's sign. This study demonstrated that extensive screening to unmask an occult malignancy in unprovoked VTE is no better than 'simple' history taking and physical examination, alongside age-specific and gender-specific national cancer screening e...
2018: Nederlands Tijdschrift Voor Geneeskunde
https://www.readbyqxmd.com/read/29301413/potential-anticancer-activity-of-biogenic-silver-nanoparticles-using-leaf-extract-of-rhynchosia-suaveolens-an-insight-into-the-mechanism
#14
Murali Satyanarayana Bethu, Vasudeva Reddy Netala, Latha Domdi, Vijaya Tartte, Venkateswara Rao Janapala
The present study reports a simple and eco-friendly synthesis of silver nanoparticles (AgNPs) using leaf extract of Rhynchosia suaveolens. UV-Vis analysis of R. suaveolens synthesized AgNPs (RS-AgNPs) showed surface plasmon resonance (SPR) peak at 426 nm. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis revealed that RS-AgNPs were 10-30 nm in size with spherical shape. X-ray diffraction (XRD) analysis of RS-AgNPs confirmed the crystalline nature with face-centered cubic (FCC) lattice...
January 4, 2018: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29301373/potential-anticancer-properties-of-osthol-a-comprehensive-mechanistic-review
#15
REVIEW
Yalda Shokoohinia, Fataneh Jafari, Zeynab Mohammadi, Leili Bazvandi, Leila Hosseinzadeh, Nicholas Chow, Piyali Bhattacharyya, Mohammad Hosein Farzaei, Ammad Ahmad Farooqi, Seyed Mohammad Nabavi, Mükerrem Betül Yerer, Anupam Bishayee
Cancer is caused by uncontrolled cell proliferation which has the potential to occur in different tissues and spread into surrounding and distant tissues. Despite the current advances in the field of anticancer agents, rapidly developing resistance against different chemotherapeutic drugs and significantly higher off-target effects cause millions of deaths every year. Osthol is a natural coumarin isolated from Apiaceaous plants which has demonstrated several pharmacological effects, such as antineoplastic, anti-inflammatory and antioxidant properties...
January 3, 2018: Nutrients
https://www.readbyqxmd.com/read/29301214/synthesis-of-selenium-quinone-hybrid-compounds-with-potential-antitumor-activity-via-rh-catalyzed-c-h-bond-activation-and-click-reactions
#16
Guilherme A M Jardim, Daisy J B Lima, Wagner O Valença, Daisy J B Lima, Bruno C Cavalcanti, Claudia Pessoa, Jamal Rafique, Antonio L Braga, Claus Jacob, Eufrânio N da Silva Júnior, Eduardo H G da Cruz
In continuation of our quest for new redox-modulating catalytic antitumor molecules, selenium-containing quinone-based 1,2,3-triazoles were synthesized using rhodium-catalyzed C-H bond activation and click reactions. All compounds were evaluated against five types of cancer cell lines: HL-60 (human promyelocytic leukemia cells), HCT-116 (human colon carcinoma cells), SF295 (human glioblastoma cells), NCIH-460 (human lung cells) and PC3 (human prostate cancer cells). Some compounds showed good activity with IC50 values below 1 µM...
December 30, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29300814/body-mass-index-and-20-specific-cancers-re-analyses-of-dose-response-meta-analyses-of-observational-studies
#17
E K Choi, H B Park, K H Lee, J H Park, M Eisenhut, H J van der Vliet, G Kim, J I Shin
Background: Objectives were to provide an overview and understand the strength of evidence and extent of potential biases and validity of claimed associations between Body Mass Index (BMI) and risk of developing cancer. Methods: We performed an umbrella review and comprehensively re-analysed the data of dose-response meta-analyses on associations between BMI and risk of 20-specific cancers (bladder, brain, breast, colonic, rectal, endometrial, gallbladder, gastric, leukemia, liver, lung, melanoma, multiple myeloma, non-Hodgkins lymphoma, oesophagus, ovarian, pancreatic, prostate, renal, thyroid) by adding big data or missed individual studies...
December 28, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29297494/neuroendocrine-tumors-of-the-prostate
#18
Samson W Fine
Neuroendocrine (NE) differentiation in tumors of the prostate or in the setting of prostate cancer (PCa) is rare. A survey of these lesions is presented, including usual PCa with focal NE marker-positive cells, Paneth cell-like change, prostatic 'carcinoid', high-grade NE carcinoma, as well as other tumors that do not fit neatly into these categories. The most significant clinical and pathologic features, emerging molecular evidence and the importance of differentiating NE tumors involving the prostate from secondary involvement are highlighted...
January 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29297491/high-grade-prostatic-intraepithelial-neoplasia-pin-like-carcinoma-ductal-carcinoma-and-intraductal-carcinoma-of-the-prostate
#19
Ming Zhou
Many prostate lesions have 'large gland' morphology with gland size similar to or larger than benign glands, complex glandular architecture including papillary, cribriform, and solid, and significant cytological atypia in glandular epithelium with nucleomegaly, prominent nucleoli, or anisonucleosis. The most common and clinically important lesions with 'large gland' morphology include high-grade prostatic intraepithelial neoplasia (HGPIN), PIN-like carcinoma, ductal adenocarcinoma, and intraductal carcinoma...
January 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29297489/benign-mimics-of-prostatic-adenocarcinoma
#20
Kiril Trpkov
Benign mimics present either as common challenges in daily routine practice or may cause diagnostic dilemmas because some are less commonly seen and one may be less familiar in recognizing them. There are a multitude of mimics of prostatic adenocarcinoma, which may represent normal gland structures, benign proliferations, atrophic lesions, hyperplastic or metaplastic changes, and inflammatory processes. Some of them are preferentially found in certain anatomic areas of the prostate, either confined to the prostate, or outside of the gland...
January 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
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