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https://www.readbyqxmd.com/read/28446540/human-prostate-luminal-cell-differentiation-requires-notch3-induction-by-p38-mapk-and-myc
#1
Sander B Frank, Penny L Berger, Mats Ljungman, Cindy K Miranti
Many pathways dysregulated in prostate cancer are also involved in epithelial differentiation. To better understand prostate tumor initiation, we sought to investigate specific genes and mechanisms required for normal basal to luminal cell differentiation. Utilizing human prostate basal epithelial cells and an in vitro differentiation model, we tested the hypothesis that p38-MAPK regulation of NOTCH3, via MYC, is required for luminal differentiation. Inhibition (SB202190, BIRB796) or knockdown of p38α and/or p38δ prevented proper differentiation...
April 26, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28441885/lactobacillus-plantarum-l9-but-not-lactobacillus-acidophilus-la-reduces-tumour-necrosis-factor-induced-bacterial-translocation-in-caco-2-cells
#2
B Wang, J Chen, S Wang, X Zhao, G Lu, X Tang
Translocation of bacteria across the intestinal barrier is important in the pathogenesis of systemic sepsis and multiple organ dysfunction syndromes. Inflammatory cytokines increase paracellular permeability that allows increased luminal bacteria to translocate across mucosal epithelium and further deteriorate the gut barrier. In order to reduce this risk, the prophylactic use of probiotics has been recently addressed. In this paper, we investigate the protective role toward tumour necrosis factor (TNF)-α induced non-pathogenic Escherichia coli translocation across Caco-2 monolayers of Lactobacillus strains...
April 26, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28441863/high-triplet-energy-level-achieved-by-tuning-the-arrangement-of-building-blocks-in-phosphorescent-polymer-backbones-for-furnishing-high-electroluminescent-performances-in-both-blue-and-white-organic-light-emitting-devices
#3
Boao Liu, Feifan Dang, Zhuanzhuan Tian, Zhao Feng, Deyuan Jin, Wanping Dang, Xiaolong Yang, Guijiang Zhou, Zhaoxin Wu
High triplet energy-level (ET) of ca. 2.83 eV has been achieved in novel polymer backbone through tuning the arrangement of two kinds of building blocks showing enhanced hole injection/transporting capacity. Based on this new polymer backbone with high ET, both blue and white phosphorescent polymers have been successfully developed with trade-off between high ET and enhanced charge carrier transporting ability of the polymer backbones. In addition, their photophysical features, electrochemical behaviors and electroluminescent (EL) properties have been characterized in detail...
April 26, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28441725/sweet-taste-receptor-activation-in-the-gut-is-of-limited-importance-for-glucose-stimulated-glp-1-and-gip-secretion
#4
Monika Y Saltiel, Rune E Kuhre, Charlotte B Christiansen, Rasmus Eliasen, Kilian W Conde-Frieboes, Mette M Rosenkilde, Jens J Holst
Glucose stimulates the secretion of the incretin hormones: glucagon-like peptide-1 (GLP-1) and glucose-dependent insulinotropic peptide (GIP). It is debated whether the sweet taste receptor (STR) triggers this secretion. We investigated the role of STR activation for glucose-stimulated incretin secretion from an isolated perfused rat small intestine and whether selective STR activation by artificial sweeteners stimulates secretion. Intra-luminal administration of the STR agonists, acesulfame K (3.85% w/v), but not sucralose (1...
April 22, 2017: Nutrients
https://www.readbyqxmd.com/read/28437642/pentoses-and-light-intensity-increase-the-growth-and-carbohydrate-production-and-alter-the-protein-profile-of-chlorella-minutissima
#5
B C B Freitas, A P A Cassuriaga, M G Morais, J A V Costa
High concentrations of carbon, which is considered a necessary element, are required for microalgal growth. Therefore, the identification of alternative carbon sources available in large quantities is increasingly important. This study evaluated the effects of light variation and pentose addition on the carbohydrate content and protein profile of Chlorella minutissima grown in a raceway photobioreactor. The kinetic parameters, carbohydrate content, and protein profile of Chlorella minutissima and its theoretical potential for ethanol production were estimated...
April 9, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28434387/cost-utility-of-biological-treatment-sequences-for-luminal-crohn-s-disease-in-europe
#6
Fanni Rencz, László Gulácsi, Márta Péntek, Krisztina B Gecse, Axel Dignass, Jonas Halfvarson, Fernando Gomollón, Petra Baji, Laurent Peyrin-Biroulet, Péter L Lakatos, Valentin Brodszky
OBJECTIVES: To compare the cost-effectiveness of treatment sequences with available biologics, including adalimumab (ADA), biosimilar infliximab (bsIFX), originator infliximab (IFX) and vedolizumab (VEDO) for luminal Crohn's disease in nine European countries. METHODS: A Markov-model was constructed to simulate five-year medical costs and quality-adjusted life years (QALYs). Data on clinical efficacy were obtained from randomised controlled trials. Country-specific unit costs, discount rates and a third-party payer perspective were applied...
April 24, 2017: Expert Review of Pharmacoeconomics & Outcomes Research
https://www.readbyqxmd.com/read/28432480/predictive-value-of-18-f-fdg-pet-ct-for-axillary-lymph-node-metastasis-in-invasive-ductal-breast-cancer
#7
Bong-Il Song, Hae Won Kim, Kyoung Sook Won
BACKGROUND: This study assessed whether primary tumor maximum standardized uptake value (pSUVmax) measured by (18)F-fluoro-2-deoxy-D-glucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) could improve the prediction of axillary lymph node (ALN) metastasis in invasive ductal breast cancer (IDC). METHODS: In this study, 128 IDC patients who underwent pretreatment (18)F-FDG PET/CT and surgical resection of primary tumor with sentinel lymph node biopsy, ALN dissection, or both were analyzed...
April 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28431236/unicystic-ameloblastoma-revisited-comparison-of-massachusetts-general-hospital-outcomes-with-original-robinson-and-martinez-report
#8
Anne-Frédérique Chouinard, Zachary S Peacock, William C Faquin, Leonard B Kaban
PURPOSE: Robinson and Martinez established unicystic ameloblastoma (UA) as a distinct pathologic entity in 1977. By use of their original description, the aim of this study was to compare the clinical presentation and outcomes of UA treated at Massachusetts General Hospital (MGH) with outcomes reported in the original article. PATIENTS AND METHODS: This was a retrospective cohort study of MGH patients treated for UA during a 15-year period. Patients were included if they had a confirmed clinical and histologic diagnosis of UA...
March 27, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28430642/immunocompetent-mouse-allograft-models-for-development-of-therapies-to-target-breast-cancer-metastasis
#9
Yuan Yang, Howard H Yang, Ying Hu, Peter H Watson, Huaitian Liu, Thomas R Geiger, Miriam R Anver, Diana C Haines, Philip Martin, Jeffrey E Green, Maxwell P Lee, Kent W Hunter, Lalage M Wakefield
Effective drug development to combat metastatic disease in breast cancer would be aided by the availability of well-characterized preclinical animal models that (a) metastasize with high efficiency, (b) metastasize in a reasonable time-frame, (c) have an intact immune system, and (d) capture some of the heterogeneity of the human disease. To address these issues, we have assembled a panel of twelve mouse mammary cancer cell lines that can metastasize efficiently on implantation into syngeneic immunocompetent hosts...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429898/subclassification-of-the-molecular-types-of-breast-cancer-based-on-the-expression-of-immunohistochemical-markers-and-evolution
#10
Aldo Reigosa, David Hardisson, Francisco Sanzi, Eduardo Caleiras, Felipe Saldivia, Angel Fernández
Breast carcinomas have been classified from the molecular point of view into four major groups (Luminal A, Luminal B, HER2 and triple negative). However, these groups are not homogeneous and there is a need to establish subcategories that can be identified by immunohistochemistry (IHC), to better predict prognosis and carry out treatments that are more effective. This study was conducted in 354 patients diagnosed with invasive ductal breast carci- noma. The expression of 22 molecules was analyzed by tissue matrices and the results obtained were compared with molecular classes defined by IHC, according to the expression of estrogen receptor (ER), progesterone receptor (PR) and HER2, and the overall survival...
June 2016: Investigación Clínica
https://www.readbyqxmd.com/read/28428285/characterisation-of-gata3-expression-in-invasive-breast-cancer-differences-in-histological-subtypes-and-immunohistochemically-defined-molecular-subtypes
#11
Tang Shaoxian, Yu Baohua, Xu Xiaoli, Cheng Yufan, Tu Xiaoyu, Lu Hongfen, Bi Rui, Sun Xiangjie, Shui Ruohong, Yang Wentao
AIMS: GATA-binding protein 3 (GATA3) is a sensitive and relatively specific marker in breast and urothelial carcinomas. Its diagnostic utility in primary and metastatic breast cancers has been explored and confirmed. However, the relationship between GATA3 expression and different breast carcinoma intrinsic subtypes has not been specifically defined in the literature despite a few reports with a small number of cases. The aim of the current investigation is to clarify GATA3 expression among different histological subtypes and surrogate molecular breast carcinoma subtypes in a large series of cases...
April 20, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28426261/a-morphological-study-of-uterine-alterations-in-mice-due-to-exposure-to-cadmium
#12
M Sapmaz-Metin, Y Topcu-Tarladacalisir, I Kurt-Omurlu, B Karaoz Weller, S Unsal-Atan
We investigated the morphologic and molecular effects of exposure to cadmium (Cd) for 30 and 60 days on the uteri of mice. We assessed uterine morphometric measurements, eosinophilia, mast cell numbers, endometrial apoptosis, proliferation and estrogen receptor alpha (ERα) immunoreactivity. We examined vaginal smears that reflected the hormonal alterations in the female reproductive tract. Because the female reproductive tract exhibits different morphology at each stage of the estrous cycle, we sacrificed all animals at estrus to make appropriate comparisons...
April 20, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28426105/the-prevalence-and-clinical-relevance-of-tumor-infiltrating-lymphocytes-tils-in-ductal-carcinoma-in-situ-of-the-breast
#13
G Pruneri, M Lazzeroni, V Bagnardi, G B Tiburzio, N Rotmensz, A DeCensi, A Guerrieri-Gonzaga, A Vingiani, G Curigliano, S Zurrida, F Bassi, R Salgado, G Van den Eynden, S Loi, C Denkert, B Bonanni, G Viale
Background: Tumor-infiltrating lymphocytes (TILs) are a robust prognostic adjunct in invasive breast cancer, but their clinical role in ductal carcinoma in situ (DCIS) has not been ascertained. Patients and methods: We evaluated the prevalence and clinical relevance of TILs in a well annotated series of 1488 consecutive DCIS women with a median follow-up of 8.2 years. Detailed criteria for TILs evaluation were pre-defined involving the International Immuno-Oncology Biomarker Working Group...
February 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28425758/agreement-between-mri-and-pathologic-analyses-for-determination-of-tumor-size-and-correlation-with-immunohistochemical-factors-of-invasive-breast-carcinoma
#14
Eun Young Yoo, Sang Yu Nam, Hye-Young Choi, Min Ji Hong
Background There may be discordance between tumor size determined by magnetic resonance imaging (MRI) and that observed during pathologic analyses. Purpose To evaluate MRI-pathology concordance of tumor size in patients with invasive breast carcinoma. Material and Methods Data from 307 invasive breast carcinomas were analyzed retrospectively. Preoperative breast MRI was reviewed for size, lesion type, morphology, and dynamic contrast-enhanced tumor kinetics. MRI tumor size was compared with tumor size measurements from the pathologic analysis...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28423514/mitotic-read-out-genes-confer-poor-outcome-in-luminal-a-breast-cancer-tumors
#15
Javier Pérez-Peña, Ana Alcaraz-Sanabria, Cristina Nieto-Jiménez, Raquel Páez, Verónica Corrales-Sánchez, Leticia Serrano-Oviedo, Vikram B Wali, Gauri A Patwardhan, Eitan Amir, Balázs Győrffy, Atanasio Pandiella, Alberto Ocaña
Luminal breast tumors have been classified into A and B subgroups, with the luminal A being associated with a more favorable clinical outcome. Unfortunately, luminal A tumors do not have a universally good prognosis. We used transcriptomic analyses using public datasets to evaluate the differential expression between normal breast tissue and breast cancer, focusing on upregulated genes included in cell cycle function. Association of selected genes with relapse free survival (RFS) and overall survival (OS) was performed using the KM Plotter Online Tool (http://www...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418164/molecular-subtyping-of-mammary-like-adenocarcinoma-of-the-vulva-shows-molecular-similarity-to-breast-carcinomas
#16
Basile Tessier-Cloutier, Karama Asleh-Aburaya, Varsha Shah, W Glenn McCluggage, Anna Tinker, C Blake Gilks
AIMS: Mammary-like adenocarcinoma (MLA) of the vulva is thought to be derived from vulvar mammary-like glands. We characterized a series of MLA using an immunohistochemical algorithm that identifies the major molecular subtypes of breast cancer. METHODS AND RESULTS: Seven cases of vulval MLA were stained for ER, PR, HER2, Ki-67, EGFR, CK5, nestin and INPP4b. 17 cases of vulval extramammary Paget disease (EMPD), 7 with invasion, were studied for comparison. The median age of patients with MLA was 72 years...
April 18, 2017: Histopathology
https://www.readbyqxmd.com/read/28415815/bi-rads-3-5-microcalcifications-prediction-of-lymph-node-metastasis-of-breast-cancer
#17
Dongzhi Cen, Li Xu, Siwei Zhang, Shuqin Zhou, Yan Huang, Zhiguang Chen, Ningna Li, Yuan Wang, Qun Wang
PURPOSE: To determine whether the clinicopathological parameters and Breast Imaging Reporting and Data System (BI-RADS) 3-5 microcalcifications differed between lymph node positive (LN (+)) and lymph node negative (LN (-)) invasive ductal carcinoma (IDC). RESULTS: For microcalcification-associated breast cancers, seven selected features (age, tumor size, Ki-67 status, lymphovascular invasion, calcification range, calcification diameter and calcification density) were significantly associated with LN status (all P < 0...
March 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414305/spop-regulates-prostate-epithelial-cell-proliferation-and-promotes-ubiquitination-and-turnover-of-c-myc-oncoprotein
#18
C Geng, S Kaochar, M Li, K Rajapakshe, W Fiskus, J Dong, C Foley, B Dong, L Zhang, O-J Kwon, S S Shah, M Bolaki, L Xin, M Ittmann, B W O'Malley, C Coarfa, N Mitsiades
The E3 ubiquitin ligase adaptor speckle-type POZ protein (SPOP) is frequently dysregulated in prostate adenocarcinoma (PC), via either somatic mutations or mRNA downregulation, suggesting an important tumour suppressor function. To examine its physiologic role in the prostate epithelium in vivo, we generated mice with prostate-specific biallelic ablation of Spop. These mice exhibited increased prostate mass, prostate epithelial cell proliferation, and expression of c-MYC protein compared to littermate controls, and eventually developed prostatic intraepithelial neoplasia (PIN)...
April 17, 2017: Oncogene
https://www.readbyqxmd.com/read/28413656/effect-of-ki-67-assessment-in-the-distribution-of-breast-cancer-subtypes-evaluation-in-a-cohort-of-latin-american-patients
#19
Alejandro Yábar, Rosa Meléndez, Silvia Muñoz, Hugo Deneo, Jimena Freire, Viviana Domínguez, Roberto M Carrasco-Navarro, Maria E Diaz, Raúl E Velarde-López
Breast cancer (BC) is a heterogeneous disease composed of four main subtypes with distinct clinical and epidemiological features. Although several reports have described the distribution of BC subtypes in Latin America, the majority of them have not included the cellular marker, Ki-67, in the immunohistochemical (IHC) panel. The aim of the present study was to describe the distribution of BC subtypes in a cohort of Latin American women using an IHC panel with Ki-67. A prospective cohort of 580 patients in three centers of Peru (the Hospital Nacional Edgardo Rebagliatti Martins, the Hospital Nacional Guillermo Almenara Irigoyen, the Hospital Nacional Alberto Sabogal, Lima) and one in Uruguay (Instituto Nacional del Cáncer, Montevideo) were evaluated...
April 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28412963/posttranslationally-modified-progesterone-receptors-direct-ligand-specific-expression-of-breast-cancer-stem-cell-associated-gene-programs
#20
Todd P Knutson, Thu H Truong, Shihong Ma, Nicholas J Brady, Megan E Sullivan, Ganesh Raj, Kathryn L Schwertfeger, Carol A Lange
BACKGROUND: Estrogen and progesterone are potent breast mitogens. In addition to steroid hormones, multiple signaling pathways input to estrogen receptor (ER) and progesterone receptor (PR) actions via posttranslational events. Protein kinases commonly activated in breast cancers phosphorylate steroid hormone receptors (SRs) and profoundly impact their activities. METHODS: To better understand the role of modified PRs in breast cancer, we measured total and phospho-Ser294 PRs in 209 human breast tumors represented on 2754 individual tissue spots within a tissue microarray and assayed the regulation of this site in human tumor explants cultured ex vivo...
April 17, 2017: Journal of Hematology & Oncology
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