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https://www.readbyqxmd.com/read/27912752/a-comparison-of-microrna-expression-profiles-from-splenic-hemangiosarcoma-splenic-nodular-hyperplasia-and-normal-spleens-of-dogs
#1
Janet A Grimes, Nripesh Prasad, Shawn Levy, Russell Cattley, Stephanie Lindley, Harry W Boothe, Ralph A Henderson, Bruce F Smith
BACKGROUND: Splenic masses are common in older dogs; yet diagnosis preceding splenectomy and histopathology remains elusive. MicroRNAs (miRNAs) are short, non-coding RNAs that play a role in post-transcriptional regulation, and differential expression of miRNAs between normal and tumor tissue has been used to diagnose neoplastic diseases. The objective of this study was to determine differential expression of miRNAs by use of RNA-sequencing in canine spleens that were histologically confirmed as hemangiosarcoma, nodular hyperplasia, or normal...
December 3, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27911942/persistent-morbillivirus-infection-leads-to-altered-cortactin-distribution-in-histiocytic-sarcoma-cells-with-decreased-cellular-migration-capacity
#2
Vanessa Maria Pfankuche, Mohamed Sayed-Ahmed, Vanessa Bono Contioso, Ingo Spitzbarth, Karl Rohn, Reiner Ulrich, Ulrich Deschl, Arno Kalkuhl, Wolfgang Baumgärtner, Christina Puff
Histiocytic sarcomas represent rare but fatal neoplasms in humans. Based on the absence of a commercially available human histiocytic sarcoma cell line the frequently affected dog displays a suitable translational model. Canine distemper virus, closely related to measles virus, is a highly promising candidate for oncolytic virotherapy. Therapeutic failures in patients are mostly associated with tumour invasion and metastasis often induced by misdirected cytoskeletal protein activities. Thus, the impact of persistent canine distemper virus infection on the cytoskeletal protein cortactin, which is frequently overexpressed in human cancers with poor prognosis, was investigated in vitro in a canine histiocytic sarcoma cell line (DH82)...
2016: PloS One
https://www.readbyqxmd.com/read/27909096/excitatory-hindbrain-forebrain-communication-is-required-for-cisplatin-induced-anorexia-and-weight-loss
#3
Amber L Alhadeff, Ruby A Holland, Huiyuan Zheng, Linda Rinaman, Harvey J Grill, Bart C De Jonghe
: Cisplatin chemotherapy is commonly used to treat cancer despite severe energy balance side effects. In rats, cisplatin activates nucleus tractus solitarius (NTS) projections to the lateral parabrachial nucleus (lPBN), and calcitonin-gene related peptide (CGRP) projections from the lPBN to the central nucleus of the amygdala (CeA). We previously demonstrated that CeA glutamate receptor signaling mediates cisplatin-induced anorexia and body weight loss. Here, we use neuroanatomical tracing, immunofluorescence and confocal imaging to demonstrate that virtually all NTS→lPBN and lPBN→CeA CGRP projections co-express vesicular glutamate transporter 2 (VGLUT2), providing evidence that excitatory projections mediate cisplatin-induced energy balance dysregulation...
December 1, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27906156/biomimetic-sniffing-improves-the-detection-performance-of-a-3d-printed-nose-of-a-dog-and-a-commercial-trace-vapor-detector
#4
Matthew E Staymates, William A MacCrehan, Jessica L Staymates, Roderick R Kunz, Thomas Mendum, Ta-Hsuan Ong, Geoffrey Geurtsen, Greg J Gillen, Brent A Craven
Unlike current chemical trace detection technology, dogs actively sniff to acquire an odor sample. Flow visualization experiments with an anatomically-similar 3D printed dog's nose revealed the external aerodynamics during canine sniffing, where ventral-laterally expired air jets entrain odorant-laden air toward the nose, thereby extending the "aerodynamic reach" for inspiration of otherwise inaccessible odors. Chemical sampling and detection experiments quantified two modes of operation with the artificial nose-active sniffing and continuous inspiration-and demonstrated an increase in odorant detection by a factor of up to 18 for active sniffing...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27893789/characterization-of-the-canine-mhc-class-i-dla-88-50101-peptide-binding-motif-as-a-prerequisite-for-canine-t-cell-immunotherapy
#5
Sharon M Barth, Christian M Schreitmüller, Franziska Proehl, Kathrin Oehl, Leonie M Lumpp, Daniel J Kowalewski, Moreno Di Marco, Theo Sturm, Linus Backert, Heiko Schuster, Stefan Stevanović, Hans-Georg Rammensee, Oliver Planz
There are limitations in pre-clinical settings using mice as a basis for clinical development in humans. In cancer, similarities exist between humans and dogs; thus, the dog patient can be a link in the transition from laboratory research on mouse models to clinical trials in humans. Knowledge of the peptides presented on MHC molecules is fundamental for the development of highly specific T cell-based immunotherapies. This information is available for human MHC molecules but is absent for the canine MHC. In the present study, we characterized the binding motif of dog leukocyte antigen (DLA) class I allele DLA-88*50101, using human C1R and K562 transfected cells expressing the DLA-88*50101 heavy chain...
2016: PloS One
https://www.readbyqxmd.com/read/27892708/antitumoral-effects-of-d-fraction-from-grifola-frondosa-maitake-mushroom-in-breast-cancer
#6
Eliana Noelia Alonso, María Julia Ferronato, Norberto Ariel Gandini, María Eugenia Fermento, Diego Javier Obiol, Alejandro López Romero, Julián Arévalo, María Emilia Villegas, María Marta Facchinetti, Alejandro Carlos Curino
D-Fraction is protein-bound β-1,6 and β-1,3 glucans (proteoglucan) extracted from the edible and medicinal mushroom Grifola frondosa (Maitake). The antitumoral effect of D-Fraction has long been exclusively attributed to their immunostimulatory capacity. However, in recent years increasing evidence showed that D-Fraction directly affects the viability of canine and human tumor cells, independent of the immune system. Previously, we have reported that D-Fraction modulates the expression of genes associated with cell proliferation, cell death, migration, invasion, and metastasis in MCF7 human breast cancer cells...
November 28, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27890405/platelets-inhibit-migration-of-canine-osteosarcoma-cells
#7
S C Bulla, P R Badial, R C Silva, K Lunsford, C Bulla
The interaction between platelets and tumour cells is important for tumour growth and metastasis. Thrombocytopenia or antiplatelet treatment negatively impact on cancer metastasis, demonstrating potentially important roles for platelets in tumour progression. To our knowledge, there is no information regarding the role of platelets in cancer progression in dogs. This study was designed to test whether canine platelets affected the migratory behaviour of three canine osteosarcoma cell lines and to give insights of molecular mechanisms...
November 24, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27879443/skeletal-metastasis-of-canine-urothelial-carcinoma-pathologic-and-computed-tomographic-features
#8
V A Charney, M A Miller, H G Heng, H Y Weng, D W Knapp
Invasive urothelial (transitional cell) carcinoma (UC) is the most common cancer in the canine urinary tract. Prolonged survival of dogs with UC due to better management of the primary tumor and prevention of urethral obstruction might have contributed to an apparent increase in distant metastasis. Metastasis to bone is particularly concerning because the ensuing pain often leads to euthanasia; however, little is known of the frequency, site, or nature of UC skeletal metastasis. In a retrospective analysis, 17 (9%) of 188 canine UC cases had histologically confirmed skeletal metastasis, mainly to the vertebrae...
November 22, 2016: Veterinary Pathology
https://www.readbyqxmd.com/read/27874835/heterotypic-models-of-osteosarcoma-recapitulate-tumor-heterogeneity-and-biological-behavior
#9
Milcah C Scott, Hirotaka Tomiyasu, John R Garbe, Ingrid Cornax, Clarissa Amaya, M Gerard O'Sullivan, Subbaya Subramanian, Brad A Bryan, Jaime F Modiano
Osteosarcoma (OS) is a heterogeneous and rare disease with a disproportionate impact, as it mainly affects children and adolescents. Lamentably, more than half of patients with OS succumb to metastatic disease. Clarification of the etiology of the disease, development of better strategies to manage progression, and methods to guide personalized treatments are among the unmet health needs for OS patients. Progress in managing the disease has been hindered by the extreme heterogeneity of OS; thus, better models that accurately recapitulate the natural heterogeneity of the disease are needed...
November 3, 2016: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/27867085/optically-active-stereoisomers-of-5-1-iodoethyl-4-4-isopropylphenyl-dihydrofuran-2-one-the-effect-of-the-configuration-of-stereocenters-on-apoptosis-induction-in-canine-cancer-cell-lines
#10
Aleksandra Pawlak, Witold Gładkowski, Marcelina Mazur, Marta Henklewska, Bożena Obmińska-Mrukowicz, Andrzej Rapak
Four stereoisomers of δ-iodo-γ-lactones with p-isopropylphenyl substituent at β-position: cis-(4R,5R,6S)-1, cis-(4S,5S,6R)-2, trans-(4R,5S,6R)-3, trans-(4S,5R,6S)-4 with proved antiproliferative activity were subjected to in vitro tests for a better understanding of their anticancer activity. The subject of our interest was a possible relationship between a configuration of chiral centers of the studied lactones and their anticancer potency against a panel of canine cell lines representing hematopoietic (CLBL-1, GL-1, CL-1, CLB70) and mammary gland cancers (P114, CMT-U27, CMT-U309)...
November 17, 2016: Chemico-biological Interactions
https://www.readbyqxmd.com/read/27863558/development-of-an-autologous-canine-cancer-vaccine-system-for-resectable-malignant-tumors-in-dogs
#11
J R Yannelli, R Wouda, T J Masterson, M G Avdiushko, D A Cohen
While conventional therapies exist for canine cancer, immunotherapies need to be further explored and applied to the canine setting. We have developed an autologous cancer vaccine (K9-ACV), which is available for all dogs with resectable disease. K9-ACV was evaluated for safety and immunogenicity for a variety of cancer types in a cohort of companion dogs under veterinary care. The autologous vaccine was prepared by enzymatic digestion of solid tumor biopsies. The resultant single cell suspensions were then UV-irradiated resulting in immunogenic cell death of the tumor cells...
December 2016: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/27860224/reduced-angiogenic-gene-expression-in-morbillivirus-triggered-oncolysis-in-a-translational-model-for-histiocytic-sarcoma
#12
Vanessa Maria Pfankuche, Ingo Spitzbarth, Stefanie Lapp, Reiner Ulrich, Ulrich Deschl, Arno Kalkuhl, Wolfgang Baumgärtner, Christina Puff
Histiocytic sarcoma represents a rare malignant tumour with a short survival time, indicating the need of novel treatment strategies including oncolytic virotherapy. The underlying molecular mechanisms of viral oncolysis are largely unknown. As cancer in companion animals shares striking similarities with human counterparts, we chose a permanent canine histiocytic sarcoma cell line (DH82 cells) to identify global transcriptome changes following infection with canine distemper virus (CDV), a paramyxovirus closely related to human measles virus...
November 17, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27856424/eradication-of-canine-diffuse-large-b-cell-lymphoma-in-a-murine-xenograft-model-with-cd47-blockade-and-anti-cd20
#13
Kipp Weiskopf, Katie L Anderson, Daisuke Ito, Peter J Schnorr, Hirotaka Tomiyasu, Aaron M Ring, Kristin Bloink, Jem Efe, Sarah Rue, David Lowery, Amira Barkal, Susan Prohaska, Kelly M McKenna, Ingrid Cornax, Timothy D O'Brien, M Gerard O'Sullivan, Irving L Weissman, Jaime F Modiano
Cancer immunotherapies hold much promise, but their potential in veterinary settings has not yet been fully appreciated. Canine lymphomas are among the most common tumors of dogs and bear remarkable similarity to human disease. In this study, we examined the combination of CD47 blockade with anti-CD20 passive immunotherapy for canine lymphoma. The CD47/SIRPα axis is an immune checkpoint that regulates macrophage activation. In humans, CD47 is expressed on cancer cells and enables evasion from phagocytosis...
December 2016: Cancer Immunology Research
https://www.readbyqxmd.com/read/27829290/hsp90-inhibitors-in-the-context-of-heat-shock-and-the-unfolded-protein-response-effects-on-a-primary-canine-pulmonary-adenocarcinoma-cell-line
#14
Arin N Graner, Justin E Hellwinkel, Alex M Lencioni, Helen J Madsen, Tessa A Harland, Paul Marchando, Ger J Nguyen, Mary Wang, Laura M Russell, Lynne T Bemis, Thomas J Anchordoquy, Michael W Graner
BACKGROUND: Agents targeting HSP90 and GRP94 are seldom tested in stressed contexts such as heat shock (HS) or the unfolded protein response (UPR). Tumor stress often activates HSPs and the UPR as pro-survival mechanisms. This begs the question of stress effects on chemotherapeutic efficacy, particularly with drugs targeting chaperones such as HSP90 or GRP94. We tested the utility of several HSP90 inhibitors, including PU-H71 (targeting GRP94), on a primary canine lung cancer line under HS/UPR stress compared to control conditions...
November 9, 2016: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/27826942/retraction-note-to-diagnostic-investigations-of-canine-prostatitis-incidence-together-with-benign-prostate-hyperplasia-prostate-malignancies-and-biochemical-recurrence-in-high-risk-prostate-cancer-as-a-model-for-human-study
#15
Radmehr Shafiee, Alireza Shariat, Soheil Khalili, Hamed Zamankhan Malayeri, Aram Mokarizadeh, Ali Anissian, Mohammad Reza Hafezi Ahmadi, Ehsan Hosseini, Mostafa Naderafif, Siamak Mohsenzadeh, Mohammad Hosein Rasoulian, Reza Rezapour, Maryam Pourzaer
No abstract text is available yet for this article.
November 8, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27822139/retraction-note-to-diagnosis-classification-and-grading-of-canine-mammary-tumours-as-a-model-to-study-human-breast-cancer-an-clinico-cytohistopathological-study-with-environmental-factors-influencing-public-health-and-medicine
#16
Radmehr Shafiee, Javad Javanbakh, Nahid Atyabi, Pegah Kheradmand, Danial Kheradmand, Alimohammad Bahrami, Hasti Daraei, Farshid Khadivar
[This retracts the article DOI: 10.1186/1475-2867-13-79.].
2016: Cancer Cell International
https://www.readbyqxmd.com/read/27810353/pyrrolopyrimidine-derivatives-and-purine-analogs-as-novel-activators-of-multidrug-resistance-associated-protein-1-mrp1-abcc1
#17
Sven Marcel Schmitt, Katja Stefan, Michael Wiese
Multidrug resistance (MDR) is the main cause of diminished success in cancer chemotherapy. ABC transport proteins are considered to be one important factor of MDR. Besides P-glycoprotein (P-gp, ABCB1) and Breast Cancer Resistance Protein (BCRP, ABCG2), Multidrug Resistance-associated Protein 1 (MRP1, ABCC1) is associated with non-response to chemotherapy in different cancers. While considerable effort was spent in overcoming MDR during the last two decades, almost nothing is known with respect to activators of transport proteins...
October 31, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27807008/role-of-equilibrative-nucleobase-transporter-1-slc43a3-as-a-ganciclovir-transporter-in-the-induction-of-cytotoxic-effect-of-ganciclovir-in-a-suicide-gene-therapy-with-herpes-simplex-virus-thymidine-kinase
#18
Junji Furukawa, Katsuhisa Inoue, Kinya Ohta, Tomoya Yasujima, Yoshihisa Mimura, Hiroaki Yuasa
A suicide gene therapy using herpes simplex virus thymidine kinase (HSV-TK) with ganciclovir (GCV) has been under development as a tumor-targeted therapy. However, the mechanism of cellular GCV uptake, which is prerequisite in the therapy, has not been clarified. In an attempt to resolve this situation and gain information to optimize HSV-TK/GCV system for cancer therapy, we found that human equilibrative nucleobase transporter 1 (ENBT1) can transport GCV with a Michaelis constant of 2.75 mM in Madin-Darby canine kidney II (MDCKII) cells stably transfected with this transporter...
November 2, 2016: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27792895/a-case-report-of-a-complete-degloving-injury-of-the-penile-skin
#19
Helena Aineskog, Fredrik Huss
INTRODUCTION: Male genital degloving injuries are unusual and rarely caused by animal bite. Usually patients attend health care immediately if bitten in the genital area. Prophylactic antibiotics is routinely used (Gomes et al., 2000). A penile degloving usually begins just proximal of the coronal line and progress down to the base of the shaft. Deep erectile tissue and the spermatic cord are seldom damaged and the endogenous skin of glans usually survives (Brown and Fryer, 1957; Morey et al...
October 15, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27779470/tumour-associated-macrophages-influence-canine-mammary-cancer-stem-like-cells-enhancing-their-pro-angiogenic-properties
#20
A Rybicka, C Eyileten, B Taciak, J Mucha, K Majchrzak, E Hellmen, M Krol
Cancer stem-like cells as cells with ability to self-renewal and potential to differentiate into various types of cells are known to be responsible for tumour initiation, recurrence and drug resistance. Hence a comprehensive research is concentrated on discovering cancer stem-like cells biology and interdependence between them and other cells. The aim of our study was to evaluate the impact of macrophages on cancer stem-like cells in canine mammary carcinomas. As recent studies indicated presence of macrophages in cancer environment stimulates cancer cells into more motile and invasive cells by acquisition of macrophage phenotypes...
August 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
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