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Mammary gland tumor

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https://www.readbyqxmd.com/read/28631716/-anogenital-mammary-like-glands-and-related-diseases-part-2-malignant-tumors-of-the-anogenital-glands
#1
A M Konstantinova, I E Belousova, D Kacerovska, M Michal, K V Shelekhova, D V Kazakov
Mammary-like glands are a normal anatomical component of the anogenital region and can give rise to many benign and malignant tumors that morphologically mimic the similar diseases of the breast. The literature review is complemented by a description of 199 cases of malignant tumors of mammary-like glands. The paper presents the clinical and morphological characteristics of various malignant tumors of mammary-like glands, including extramammary Paget's disease, ductal, tubulolobular, adenoid cystic adenocarcinoma, low-grade phyllodes tumor, etc...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28630214/patient-derived-interstitial-fluids-and-predisposition-to-aggressive-sporadic-breast-cancer-through-collagen-remodeling-and-inactivation-of-p53
#2
Timothy Kenny, Hank Schmidt, Kerin Adelson, Yujin Hoshida, Anna P Koh, Nagma Shah, John P Mandeli, Jess Ting, Doris Germain
Despite the fact that interstitial fluid (IF) represents a third of our body fluid, it is the most poorly understood body fluid in medicine. Increased IF pressure is thought to result from the increased deposition of extracellular matrix in the affected tissue preventing its reabsorption. In the cancer field, increased rigidity surrounding a cancerous mass remains the main reason that palpation and radiological examination, such as mammography, are used for cancer detection. While the pressure produced by IF has been considered, the biochemical composition of IF has not been considered in its effect on tumors...
June 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28624801/bromodomain-inhibition-shows-antitumoral-activity-in-mice-and-human-luminal-breast-cancer
#3
Montserrat Pérez-Salvia, Laia Simó-Riudalbas, Pere Llinàs-Arias, Laura Roa, Fernando Setien, Marta Soler, Manuel Castro de Moura, James E Bradner, Eva Gonzalez-Suarez, Catia Moutinho, Manel Esteller
BET bromodomain inhibitors, which have an antitumoral effect against various solid cancer tumor types, have not been studied in detail in luminal breast cancer, despite the prevalence of this subtype of mammary malignancy. Here we demonstrate that the BET bromodomain inhibitor JQ1 exerts growth-inhibitory activity in human luminal breast cancer cell lines associated with a depletion of the C-MYC oncogene, but does not alter the expression levels of the BRD4 bromodomain protein. Interestingly, expression microarray analyses indicate that, upon JQ1 administration, the antitumoral phenotype also involves downregulation of relevant breast cancer oncogenes such as the Breast Carcinoma-Amplified Sequence 1 (BCAS1) and the PDZ Domain-Containing 1 (PDZK1)...
May 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28615128/17%C3%AE-estradiol-and-progesterone-decrease-mdp-induced-nod2-expression-in-bovine-mammary-epithelial-cells
#4
Dan-Dan Xu, Gang Wang, Xian-Jing He, Jian-Fa Wang, Bin Yang, Zhi-Peng Sun, Dong-Bo Sun, Qian-Yu He, Xu Zhang, Rui Wu
During the periparturient period, many neuroendocrine changes develop in cows. Periparturient hormone fluxes may adversely affect mammary gland immunity and mastitis susceptibility. 17β-Estradiol (E2) and progesterone (P4) have been reported to function on immune regulation, and their concentration fluctuates dramatically during the perinatal period. Nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs) mediate numerous aspects of innate immunity in humans and experimental animals. This study aimed to explore the effects of E2 and P4 on NOD2 expression in bovine mammary epithelial cells (BMECs)...
June 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28614209/newly-described-entities-in-salivary-gland-pathology
#5
Alena Skálová, Douglas R Gnepp, James S Lewis, Jennifer L Hunt, Justin A Bishop, Henrik Hellquist, Alessandra Rinaldo, Vincent Vander Poorten, Alfio Ferlito
Salivary glands may give rise to a wide spectrum of different tumors. This review concentrates on 4 salivary gland tumors that have been accepted in the recent literature as new neoplastic entities: mammary analog secretory carcinoma, cribriform adenocarcinoma of minor salivary glands (CASG), sclerosing polycystic adenosis/adenoma (SPA), and the mucinous/secretory variant of myoepithelioma. Mammary analog secretory carcinoma is a distinctive low-grade malignant salivary cancer that harbors a characteristic chromosomal translocation, t(12;15) (p13;q25), resulting in an ETV6-NTRK3 fusion...
June 13, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28589445/chemoprevention-of-breast-cancer-by-transdermal-delivery-of-%C3%AE-santalol-through-breast-skin-and-mammary-papilla-nipple
#6
Kaushalkumar Dave, Fahd M Alsharif, Saiful Islam, Chandradhar Dwivedi, Omathanu Perumal
PURPOSE: Almost all breast cancers originate from epithelial cells lining the milk ducts in the breast. To this end, the study investigated the feasibility of localized transdermal delivery of α-santalol, a natural chemopreventive agent to the breast. METHODS: Different α-santalol formulations (cream, solution and microemulsion) were developed and the in vitro permeability was studied using excised animal (porcine and rat) and human breast skin/mammary papilla (nipple)...
June 6, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28585088/allyl-isothiocyanate-a-potent-chemopreventive-agent-targets-ahr-nrf2-signaling-pathway-in-chemically-induced-mammary-carcinogenesis
#7
Thangarasu Rajakumar, Pachaiappan Pugalendhi, Subbaiyan Thilagavathi, Dhanabalan Ananthakrishnan, Krishnaswamy Gunasekaran
In the present study, we investigated the effect of allyl isothiocyanate (AITC) on liver detoxification signaling pathway in 7,12-dimethylbenz(a)anthracene (DMBA)-induced mammary carcinogenesis. Mammary tumor was induced by a single dose of DMBA (25 mg/rat) injected subcutaneously near the mammary gland in Sprague-Dawley rats. DMBA-alone-treated rats show an increased synthesis of phase I detoxification enzymes, lipid peroxidative markers, liver marker enzymes, and lipid profiles whereas, depletion of phase II detoxification enzymes and antioxidants in rat liver tissues...
June 5, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28581515/gata3-targets-semaphorin-3b-in-mammary-epithelial-cells-to-suppress-breast-cancer-progression-and-metastasis
#8
P Shahi, C-Y Wang, J Chou, C Hagerling, H Gonzalez Veloso, A Ruderisch, Y Yu, M-D Lai, Z Werb
Semaphorin 3B (SEMA3B) is a secreted axonal guidance molecule that is expressed during development and throughout adulthood. Recently, SEMA3B has emerged as a tumor suppressor in non-neuronal cells. Here, we show that SEMA3B is a direct target of GATA3 transcriptional activity. GATA3 is a key transcription factor that regulates genes involved in mammary luminal cell differentiation and tumor suppression. We show that GATA3 relies on SEMA3B for suppression of tumor growth. Loss of SEMA3B renders GATA3 inactive and promotes aggressive breast cancer development...
June 5, 2017: Oncogene
https://www.readbyqxmd.com/read/28579119/function-of-the-vitamin-d-endocrine-system-in-mammary-gland-and-breast-cancer
#9
REVIEW
JoEllen Welsh
The nuclear receptor for 1α,25-dihydroxycholecalciferol (1,25D), the active form of vitamin D, has anti-tumor actions in many tissues. The vitamin D receptor (VDR) is expressed in normal mammary gland and in many human breast cancers suggesting it may represent an important tumor suppressor gene in this tissue. When activated by 1,25D, VDR modulates multiple cellular pathways including those related to energy metabolism, terminal differentiation and inflammation. There is compelling pre-clinical evidence that alterations in vitamin D status affect breast cancer development and progression, while clinical and epidemiological data are suggestive but not entirely consistent...
June 1, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28549415/role-of-peptidylarginine-deiminase-2-pad2-in-mammary-carcinoma-cell-migration
#10
Sachi Horibata, Katherine E Rogers, David Sadegh, Lynne J Anguish, John L McElwee, Pragya Shah, Paul R Thompson, Scott A Coonrod
BACKGROUND: Penetration of the mammary gland basement membrane by cancer cells is a crucial first step in tumor invasion. Using a mouse model of ductal carcinoma in situ, we previously found that inhibition of peptidylarginine deiminase 2 (PAD2, aka PADI2) activity appears to maintain basement membrane integrity in xenograft tumors. The goal of this investigation was to gain insight into the mechanisms by which PAD2 mediates this process. METHODS: For our study, we modulated PAD2 activity in mammary ductal carcinoma cells by lentiviral shRNA-mediated depletion, lentiviral-mediated PAD2 overexpression, or PAD inhibition and explored the effects of these treatments on changes in cell migration and cell morphology...
May 26, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28548128/genomic-profiling-of-breast-secretory-carcinomas-reveals-distinct-genetics-from-other-breast-cancers-and-similarity-to-mammary-analog-secretory-carcinomas
#11
Gregor Krings, Nancy M Joseph, Gregory R Bean, David Solomon, Courtney Onodera, Eric Talevich, Iwei Yeh, James P Grenert, Elizabeth Hosfield, Emily D Crawford, Richard C Jordan, Annemieke van Zante, Charles Zaloudek, Sandra J Shin, Yunn-Yi Chen
Secretory carcinomas of the breast are rare tumors with distinct histologic features, recurrent t(12;15)(p13;q25) translocation resulting in ETV6-NTRK3 gene fusion and indolent clinical behavior. Mammary analog secretory carcinomas arising in other sites are histopathologically similar to the breast tumors and also harbor ETV6-NTRK3 fusions. Breast secretory carcinomas are often triple (estrogen and progesterone receptor, HER2) negative with a basal-like immunophenotype. However, genomic studies are lacking, and whether these tumors share genetic features with other basal and/or triple negative breast cancers is unknown...
May 26, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28535374/discovery-of-stromal-regulatory-networks-that-suppress-ras-sensitized-epithelial-cell-proliferation
#12
Huayang Liu, James A Dowdle, Safiya Khurshid, Nicholas J Sullivan, Nicholas Bertos, Komal Rambani, Markus Mair, Piotr Daniel, Esther Wheeler, Xing Tang, Kyle Toth, Michael Lause, Markus E Harrigan, Karl Eiring, Connor Sullivan, Matthew J Sullivan, Serena W Chang, Siddhant Srivastava, Joseph S Conway, Raleigh Kladney, Joseph McElroy, Sooin Bae, Yuanzhi Lu, Ali Tofigh, Sadiq M I Saleh, Soledad A Fernandez, Jeffrey D Parvin, Vincenzo Coppola, Erin R Macrae, Sarmila Majumder, Charles L Shapiro, Lisa D Yee, Bhuvaneswari Ramaswamy, Michael Hallett, Michael C Ostrowski, Morag Park, Helen M Chamberlin, Gustavo Leone
Mesodermal cells signal to neighboring epithelial cells to modulate their proliferation in both normal and disease states. We adapted a Caenorhabditis elegans organogenesis model to enable a genome-wide mesodermal-specific RNAi screen and discovered 39 factors in mesodermal cells that suppress the proliferation of adjacent Ras pathway-sensitized epithelial cells. These candidates encode components of protein complexes and signaling pathways that converge on the control of chromatin dynamics, cytoplasmic polyadenylation, and translation...
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28530205/phantom-experiments-using-soft-prior-regularization-eit-for-breast-cancer-imaging
#13
Ethan K Murphy, Aditya Mahara, Xiaotian Wu, Ryan J Halter
OBJECTIVE: A soft-prior regularization (SR) electrical impedance tomography (EIT) technique for breast cancer imaging is described, which shows an ability to accurately reconstruct tumor/inclusion conductivity values within a dense breast model investigated using a cylindrical and a breast-shaped tank. APPROACH: The SR-EIT method relies on knowing the spatial location of a suspicious lesion initially detected from a second imaging modality. Standard approaches (using Laplace smoothing and total variation regularization) without prior structural information are unable to accurately reconstruct or detect the tumors...
June 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28527736/the-effects-of-non-invasive-radiofrequency-electric-field-hyperthermia-on-biotransport-and-biodistribution-of-fluorescent-60-fullerene-derivative-in-a-murine-orthotopic-model-of-breast-adenocarcinoma
#14
Norman A Lapin, Martyna Krzykawska-Serda, Sean Dilliard, Yuri Mackeyev, Maciej Serda, Lon J Wilson, Steven A Curley, Stuart J Corr
The aim of this study is to understand the combined and differential biokinetic effects of radiofrequency (RF) electric-field hyperthermia as an adjunctive therapy to [60]fullerene nanoparticle-based drug delivery systems in targeting the micro-vasculature and micro-environments of breast cancer tumors. Intravital microscopy (IVM) is an ideal tool to provide the spatial and temporal resolution needed for quantification in this investigation. The water-soluble and fluorescent [60]fullerene derivative (C60-serPF) was designed to be an amphiphilic nanostructure, which is able to cross several biological membranes and accumulate in tumor tissues by passing through abnormally leaky tumor blood vessels...
May 17, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28522938/mucin-1-antibody-conjugated-mesoporous-silica-nanoparticles-for-selective-breast-cancer-detection-in-a-mucin-1-transgenic-murine-mouse-model
#15
Didier Dréau, Laura Jeffords Moore, Merlis P Alvarez-Berrios, Mubin Tarannum, Pinku Mukherjee, Juan L Vivero-Escoto
Mucin-1 (MUC1), a transmembrane glycoprotein is aberrantly expressed on ~90% of breast cancer and is an excellent target for nanoparticulate targeted imaging. In this study, the development of a dye-doped NIR emitting mesoporous silica nanoparticles platform conjugated to tumor-specific MUC1 antibody (ab-tMUC1-NIR-MSN) for in vivo optical detection of breast adenocarcinoma tissue is reported. The structural properties, the in vitro and in vivo performance of this nanoparticle-based probe were evaluated. In vitro studies showed that the MSN-based optical imaging nanoprobe is non-cytotoxic and targets efficiently mammary cancer cells overexpressing human tMUC1 protein...
December 2016: Journal of Biomedical Nanotechnology
https://www.readbyqxmd.com/read/28501760/stromal-pdgfr-%C3%AE-activation-enhances-matrix-stiffness-impedes-mammary-ductal-development-and-accelerates-tumor-growth
#16
Anisha M Hammer, Gina M Sizemore, Vasudha C Shukla, Alex Avendano, Steven T Sizemore, Jonathan J Chang, Raleigh D Kladney, Maria C Cuitiño, Katie A Thies, Quinn Verfurth, Arnab Chakravarti, Lisa D Yee, Gustavo Leone, Jonathan W Song, Samir N Ghadiali, Michael C Ostrowski
The extracellular matrix (ECM) is critical for mammary ductal development and differentiation, but how mammary fibroblasts regulate ECM remodeling remains to be elucidated. Herein, we used a mouse genetic model to activate platelet derived growth factor receptor-alpha (PDGFRα) specifically in the stroma. Hyperactivation of PDGFRα in the mammary stroma severely hindered pubertal mammary ductal morphogenesis, but did not interrupt the lobuloalveolar differentiation program. Increased stromal PDGFRα signaling induced mammary fat pad fibrosis with a corresponding increase in interstitial hyaluronic acid (HA) and collagen deposition...
June 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28492548/inhibition-of-ptp1b-disrupts-cell-cell-adhesion-and-induces-anoikis-in-breast-epithelial-cells
#17
Bylgja Hilmarsdottir, Eirikur Briem, Skarphedinn Halldorsson, Jennifer Kricker, Sævar Ingthorsson, Sigrun Gustafsdottir, Gunhild M Mælandsmo, Magnus K Magnusson, Thorarinn Gudjonsson
Protein tyrosine phosphatase 1B (PTP1B) is a well-known inhibitor of insulin signaling pathways and inhibitors against PTP1B are being developed as promising drug candidates for treatment of obesity. PTP1B has also been linked to breast cancer both as a tumor suppressor and as an oncogene. Furthermore, PTP1B has been shown to be a regulator of cell adhesion and migration in normal and cancer cells. In this study, we analyzed the PTP1B expression in normal breast tissue, primary breast cells and the breast epithelial cell line D492...
May 11, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28487351/gestational-high-fat-diet-and-bisphenol-a-exposure-heightens-mammary-cancer-risk
#18
Yuet-Kin Leung, Vinothini Govindarajah, Ana Cheong, Jen Veevers, Dan Song, Robin Gear, Xuegong Zhu, Jun Ying, Ady Kendler, Mario Medvedovic, Scott Belcher, Shuk-Mei Ho
In utero exposure to bisphenol A (BPA) increases mammary cancer susceptibility in offspring. High fat diet is widely believed to be a risk factor of breast cancer. The objective of this study was to determine whether maternal exposure to BPA in addition to high-butterfat (HBF) intake during pregnancy further impacts carcinogen-induced mammary cancer risk in offspring, and its dose-response curve. In this study, we found that gestational HBF intake in addition to a low-dose BPA (25 µg/kg BW/day) exposure increased mammary tumor incidence in a 50-day-of-age chemical carcinogen administration model and altered mammary gland morphology in offspring in a non-monotonic manner, while shortening tumor-free survival time compared with the HBF-alone group...
May 9, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28484924/development-of-mammary-hyperplasia-dysplasia-and-invasive-ductal-carcinoma-in-transgenic-mice-expressing-the-8p11-amplicon-oncogene-nsd3
#19
Brittany Turner-Ivey, Ericka L Smith, Alex C Rutkovsky, Laura S Spruill, Jamie N Mills, Stephen P Ethier
PURPOSE: NSD3 has been implicated as a candidate driver oncogene from the 8p11-p12 locus, and we have previously published evidence for its amplification and overexpression in human breast cancer. This aim of this study was to further characterize the transforming function of NSD3 in vivo. METHODS: We generated a transgenic mouse model in which NSD3 gene expression was driven by the MMTV promoter and expressed in mammary epithelium of FVB mice. Mammary glands were fixed and whole mounts were stained with carmine to visualize gland structure...
May 8, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28481869/the-transcription-factor-gata3-is-required-for-homologous-recombination-repair-by-regulating-ctip-expression
#20
F Zhang, H Tang, Y Jiang, Z Mao
GATA3, a critical transcription factor involved in the development of the mammary gland, also plays important roles in mammary tumorigenesis by regulating transcription in coordination with two essential DNA repair factors, PARP1 and BRCA1. However, whether and how GATA3 participates in the process of DNA repair, which is often associated with tumorigenesis, has not been investigated. Here we demonstrate that GATA3 is required for the repair of DNA double-strand breaks (DSBs) by homologous recominbation (HR)...
May 8, 2017: Oncogene
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