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https://www.readbyqxmd.com/read/28927253/comparative-aspects-of-microrna-expression-in-canine-and-human-cancer
#1
REVIEW
Kabiru Sahabi, Gayathri Thevi Selvarajah, Rasedee Abdullah, Cheah Yoke Kqueen, Tan Geok Chin
MicroRNAs (miRNAs) are important players in all biological pathways in multicellular organisms. Over 1,400 human miRNAs have been identified, and many are conserved among vertebrates and invertebrates. MicroRNA regulation is the most abundant mode of post-transcriptional gene regulation. MicroRNAs that are involved in the initiation and progression of cancers are termed oncomiRs, several of which have been identified in canine and human cancer. Similarly, several miRNAs have been reported to be down-regulated in cancers of the two species...
September 20, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28910304/comparative-proteomic-investigation-of-metastatic-and-non-metastatic-osteosarcoma-cells-of-human-and-canine-origin
#2
Jahnabi Roy, Kathryn L Wycislo, Holly Pondenis, Timothy M Fan, Aditi Das
Osteosarcoma is the most common bone cancer in dogs and people. In order to improve clinical outcomes, it is necessary to identify proteins that are differentially expressed by metastatic cells. Membrane bound proteins are responsible for multiple pro-metastatic functions. Therefore characterizing the differential expression of membranous proteins between metastatic and non-metastatic clonal variants will allow the discovery of druggable targets and consequently improve treatment methodology. The objective of this investigation was to systemically identify the membrane-associated proteomics of metastatic and non-metastatic variants of human and canine origin...
2017: PloS One
https://www.readbyqxmd.com/read/28906208/pattern-recognition-receptors-signaling-pathways-and-dysregulation-in-canine-chronic-enteropathies-brief-review
#3
Romy M Heilmann, Karin Allenspach
Pattern-recognition receptors (PRRs) are expressed by innate immune cells and recognize pathogen-associated molecular patterns (PAMPs) as well as endogenous damage-associated molecular pattern (DAMP) molecules. With a large potential for synergism or convergence between their signaling pathways, PRRs orchestrate a complex interplay of cellular mediators and transcription factors, and thus play a central role in homeostasis and host defense. Aberrant activation of PRR signaling, mutations of the receptors and/or their downstream signaling molecules, and/or DAMP/PAMP complex-mediated receptor signaling can potentially lead to chronic auto-inflammatory diseases or development of cancer...
September 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28883003/discovery-of-human-similar-gene-fusions-in-canine-cancers
#4
Ronan Ulvé, Mélanie Rault, Mathieu Bahin, Laetitia Lagoutte, Jérôme Abadie, Clotilde De Brito, Jean-Michel Coindre, Nadine Botherel, Audrey Rousseau, Valentin Wucher, Edouard Cadieu, Catherine Thieblemont, Christophe Hitte, Laurence Cornevin, Florian Cabillic, Laura Bachelot, David Gilot, Benoit Hennuy, Thierry Guillaudeux, Arnaud Le Goff, Thomas Derrien, Benoît Hédan, Catherine André
Canine cancers represent a tremendous natural resource due to their incidence and striking similarities to human cancers, sharing similar clinical and pathological features as well as oncogenic events including identical somatic mutations. Considering the importance of gene fusions as driver alterations, we explored their relevance in canine cancers. We focused on three distinct human-comparable canine cancers representing different tissues and embryonic origins. Through RNA-Seq, we discovered similar gene fusions as those found in their human counterparts: IGK-CCND3 in B-cell lymphoma, MPB-BRAF in glioma, and COL3A1-PDGFB in dermatofibrosarcoma protuberans-like...
September 7, 2017: Cancer Research
https://www.readbyqxmd.com/read/28881846/safety-and-efficacy-of-p62-dna-vaccine-elenagen-in-a-first-in-human-trial-in-patients-with-advanced-solid-tumors
#5
Dmitry M Ponomarenko, Irina D Klimova, Yulia A Chapygina, Viktoria V Dvornichenko, Natalia V Zhukova, Rashida V Orlova, Georgy M Manikhas, Alexandr V Zyryanov, Lilya A Burkhanova, Irina I Badrtdinova, Basile N Oshchepkov, Elena V Filippova, Sergei V Orlov, Sergei I Kolesnikov, Albert A Sufianov, Svetlana R Baum, Olga Y Zaitzeva, Andrey B Komissarov, Mikhail P Grudinin, Oleg I Kiselev, Anatoly F Tsyb, Franco Venanzi, Vita Shcherbinina, Andrey Chursov, Vladimir L Gabai, Alexander M Shneider
Elenagen is a plasmid encoding p62/SQSTM1, the first DNA vaccine possessing two mutually complementing mechanisms of action: it elicits immune response against p62 and mitigates systemic chronic inflammation. Previously, Elenagen demonstrated anti-tumor efficacy and safety in rodent tumor models and spontaneous tumors in dogs. This multicenter I/IIa trial evaluated safety and clinical activity of Elenagen in patients with advanced solid tumors. Fifteen patients were treated with escalating doses of Elenagen (1- 5 mg per doses, 5 times weekly) and additional 12 patients received 1 mg dose...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28880093/quantification-of-transporter-and-receptor-proteins-in-dog-brain-capillaries-and-choroid-plexus-relevance-for-the-distribution-in-brain-and-csf-of-selected-bcrp-and-p-gp-substrates
#6
Clemens Braun, Atsushi Sakamoto, Holger Fuchs, Naoki Ishiguro, Shinobu Suzuki, Yunhai Cui, Klaus Klinder, Michitoshi Watanabe, Tetsuya Terasaki, Achim Sauer
Transporters at the blood-brain barrier (BBB) and the blood-cerebrospinal fluid barrier (BCSFB) play a pivotal role as gatekeepers for efflux or uptake of endogenous and exogenous molecules. The protein expression of a number of them has already been determined in the brains of rodents, non-human primates and humans using quantitative targeted absolute proteomics (QTAP). The dog is an important animal model for drug discovery and development, especially for safety evaluations. The purpose of the present study is to clarify the relevance of the transporter protein expression for drug distribution in the dog brain and CSF...
September 7, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28879861/integrating-exhaled-breath-diagnostics-by-disease-sniffing-dogs-with-instrumental-laboratory-analysis
#7
Joachim Pleil, Roger Giese
Dogs have been studied for many years as a medical diagnostic tool to detect a pre-clinical disease state by sniffing emissions directly from a human or an in vitro biological sample. Some of the studies report high sensitivity and specificity in blinded case-control studies. However, in these studies it is completely unknown as to which suites of chemicals the dogs detect and how they ultimately interpret this information amidst confounding background odors. Herein, we consider the advantages and challenges of canine olfaction for early (meaningful) detection of cancer, and propose an experimental concept to narrow the molecular signals used by the dog for sample classification to laboratory-based instrumental analysis...
September 7, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28871659/overexpression-of-her-2-via-immunohistochemistry-in-canine-urinary-bladder-transitional-cell-carcinoma-a-marker-of-malignancy-and-possible-therapeutic-target
#8
F Millanta, J Impellizeri, L McSherry, G Rocchigiani, L Aurisicchio, G Lubas
Transitional cell carcinoma (TCC) is the most commonly diagnosed neoplasm in the urinary bladder. Distant metastases to the regional lymph nodes, lungs, abdominal organs or bones are noted in up to 50% of dogs at time of death. Surgical excision is often not practical as TCC typically involve the trigone of the bladder and/or occurs multifocally throughout the bladder with field cancerization. Therapeutic approaches are very challenging and the requirement to evaluate alternative therapeutic protocols that may prolong survival times in dogs bearing these tumours is compelling...
September 4, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28865149/bordetella-bronchiseptica-bloodstream-infection-in-a-renal-transplant-patient
#9
Harry R Powers, Kairav Shah
Bordetella bronchiseptica is a gram-negative coccobacillus that infects animals, but rarely affects humans. B. bronchiseptica has been reported to cause disease in immunocompromised hosts. We present a case of a 61-year-old man with a renal transplant who developed B. bronchiseptica bacteremia likely as a result of close contact between dogs and his skin cancer biopsy sites. The patient was successfully treated with 2 weeks of oral levofloxacin. This case alerts physicians to B. bronchiseptica as a cause of bacteremia in solid organ transplant patients with exposure to animals...
September 2, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28854119/new-tricks-for-an-old-dog-brf2-dependent-rna-polymerase-iii-transcription-in-oxidative-stress-and-cancer
#10
Jerome Gouge, Alessandro Vannini
Here, we discuss the role of Brf2, an RNA Polymerase III core transcription factor, as a master switch of the oxidative stress response. We highlight the interplay of Brf2 with the Nrf2/Keap1 pathway, as well as the role of Brf2 in cancer and other possible regulations.
August 30, 2017: Transcription
https://www.readbyqxmd.com/read/28834169/transcriptomic-profile-reveals-molecular-events-associated-to-focal-adhesion-and-invasion-in-canine-mammary-gland-tumour-cell-lines
#11
Y G Cordeiro, P L P Xavier, A L Rochetti, P A Alexandre, C M C Mori, R F Strefezzi, H Fukumasu
The prevalence of cancer in animals has increased significantly over the years. Mammary tumours are the most common neoplasia in dogs, in which around 50% are presented in the malignant form. Hence, the development and characterization of in vitro models for the study of canine tumours are important for the improvement of cancer diagnosis and treatment. Thus, the aim of this study was to characterize cell lines derived from canine mammary gland neoplasias which could be further used for basic and applied oncology research...
August 18, 2017: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/28828951/clinical-outcomes-of-patient-specific-porous-titanium-endoprostheses-in-dogs-with-tumors-of-the-mandible-radius-or-tibia-12-cases-2013-2016
#12
Jonathan P Bray, Andrew Kersley, Warwick Downing, Katherine R Crosse, Andrew J Worth, Arthur K House, Guy Yates, Alastair R Coomer, Ian W M Brown
OBJECTIVE To characterize the processes involved in and outcomes achieved with custom-designed patient-specific implants to provide functional replacement of skeletal structures in dogs with tumors of the mandible, radius, or tibia. DESIGN Prospective case series. ANIMALS 6 dogs with mandibular tumors, 5 with tumors of the distal aspect of the radius, and 1 with a tumor in the distal aspect of the tibia treated from June 2013 to September 2016 at 3 referral centers. PROCEDURES After tumor staging, implants were designed from patients' CT scans by means of various computer-aided design applications and printed by means of selective laser melting in titanium-6 aluminum-4 vanadium alloy...
September 1, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28827658/a-canine-chimeric-monoclonal-antibody-targeting-pd-l1-and-its-clinical-efficacy-in-canine-oral-malignant-melanoma-or-undifferentiated-sarcoma
#13
Naoya Maekawa, Satoru Konnai, Satoshi Takagi, Yumiko Kagawa, Tomohiro Okagawa, Asami Nishimori, Ryoyo Ikebuchi, Yusuke Izumi, Tatsuya Deguchi, Chie Nakajima, Yukinari Kato, Keiichi Yamamoto, Hidetoshi Uemura, Yasuhiko Suzuki, Shiro Murata, Kazuhiko Ohashi
Immunotherapy targeting immune checkpoint molecules, programmed cell death 1 (PD-1) and PD-ligand 1 (PD-L1), using therapeutic antibodies has been widely used for some human malignancies in the last 5 years. A costimulatory receptor, PD-1, is expressed on T cells and suppresses effector functions when it binds to its ligand, PD-L1. Aberrant PD-L1 expression is reported in various human cancers and is considered an immune escape mechanism. Antibodies blocking the PD-1/PD-L1 axis induce antitumour responses in patients with malignant melanoma and other cancers...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28822004/in-vitro-validation-of-the-hippo-pathway-as-a-pharmacological-target-for-canine-mammary-gland-tumors
#14
Samantha Guillemette, Charlène Rico, Philippe Godin, Derek Boerboom, Marilène Paquet
Canine mammary tumors (CMTs) are the most common neoplasms in intact female dogs. Some clinical and molecular similarities between certain CMT subtypes and breast cancer make them a potential model for the study of the human disease. As misregulated Hippo signaling is thought to play an important role in breast cancer development and also occurs in CMTs, we sought to determine if Hippo represents a valid pharmacological target for the treatment of CMTs. Six CMT cell lines were assessed for their expression of the Hippo pathway effectors YAP and TAZ and for their sensitivity to verteporfin, an inhibitor of YAP-mediated transcriptional coactivation...
August 18, 2017: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/28801701/the-overexpression-of-hsp90b1-is-associated-with-tumorigenesis-of-canine-mammary-glands
#15
B V Sunil Kumar, Rabia Bhardwaj, Kanika Mahajan, Neeraj Kashyap, Ashwani Kumar, Ramneek Verma
Heat shock proteins (Hsp) are molecular chaperones that are responsible for protein folding and maintenance of cellular homeostasis. Hsp90, an important member of HSP family, has an important role in breast cancer. Glucose-regulated protein 94 (Grp94) is the endoplasmic reticulum paralog of Hsp90 encoded by Hsp90B1 gene. To test if this protein is overexpressed in dogs with mammary tumor, we estimated and compared its serum levels in healthy dogs and that of dogs with mammary tumors. Hsp90B1 mRNA expression was measured in tumorous and healthy mammary tissues (from age- and breed-matched dogs) by real-time PCR...
August 12, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28795016/malignant-pilomatricoma-in-a-dog-with-local-and-distant-metastases-treated-with-chemotherapy-and-bisphosphonates
#16
Elisabetta Treggiari, James W Elliott
A ten-year-old male neutered cross breed dog presented for evaluation of a mass associated with the left scapular bone, identified as a carcinoma. The dog had a malignant pilomatricoma removed from the left lateral thigh 6 months earlier. Histopathology review of the cutaneous and scapular mass identified the same tumour type, confirming metastatic disease; additional metastases to the inguinal lymph node, liver and lungs were identified. Chemotherapy resulted in partial responses/stable disease of very short duration...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28750090/target-specificity-in-vivo-pharmacokinetics-and-efficacy-of-the-putative-stat3-inhibitor-ly5-in-osteosarcoma-ewing-s-sarcoma-and-rhabdomyosarcoma
#17
Peter Y Yu, Heather L Gardner, Ryan Roberts, Hakan Cam, Seethalakshmi Hariharan, Ling Ren, Amy K LeBlanc, Hui Xiao, Jiayuh Lin, Denis C Guttridge, Xiaokui Mo, Chad E Bennett, Christopher C Coss, Yonghua Ling, Mitch A Phelps, Peter Houghton, Cheryl A London
BACKGROUND: STAT3 is a transcription factor involved in cytokine and receptor kinase signal transduction that is aberrantly activated in a variety of sarcomas, promoting metastasis and chemotherapy resistance. The purpose of this work was to develop and test a novel putative STAT3 inhibitor, LY5. METHODS AND FINDINGS: An in silico fragment-based drug design strategy was used to create LY5, a small molecule inhibitor that blocks the STAT3 SH2 domain phosphotyrosine binding site, inhibiting homodimerization...
2017: PloS One
https://www.readbyqxmd.com/read/28747976/immunohistochemical-localization-of-glucose-transporter-1-and-3-in-the-scrotal-and-abdominal-testes-of-a-dog
#18
Kyu Ri Hahn, Hyo Young Jung, Dae Young Yoo, Jong Whi Kim, Yang Hee Kim, Young Kwang Jo, Geon A Kim, Jin Young Chung, Jung Hoon Choi, In Koo Hwang, Goo Jang, Yeo Sung Yoon
Glucose is essential for testicular function; the uptake of carbohydrate-derived glucose by cells is mediated by glucose transporters (GLUTs). In the present study, we investigated the activity of GLUT1 and GLUT3, the two main isoforms of GLUTs found in testes, in the left scrotal and right abdominal testes of a German Shepherd dog. Immunohistochemical analysis showed that GLUT1 immunoreactivity was absent in the scrotal and abdominal testes. In contrast, weak to moderate GLUT3 immunoreactivity was observed in mature spermatocytes as well as spermatids in the scrotal testis...
June 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28739839/dog-ownership-supports-the-maintenance-of-physical-activity-during-poor-weather-in-older-english-adults-cross-sectional-results-from-the-epic-norfolk-cohort
#19
Yu-Tzu Wu, Robert Luben, Andy Jones
BACKGROUND: Dog ownership has been suggested to encourage physical activity in older adults and may enhance resilience to poor environmental conditions. This study investigates the role of dog ownership and walking as a means of supporting the maintenance of physical activity in older adults during periods of inclement weather. METHODS: The analysis used data from the European Prospective Investigation into Cancer and Nutrition Norfolk cohort. Daily physical activity (counts per minute) and minutes of sedentary behaviour were measured using accelerometers over 7 days...
July 24, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/28735667/immunohistochemical-expression-of-mcam-cd146-in-canine-melanoma
#20
S Abou Asa
MCAM/CD146 (melanoma cell adhesion molecule/CD146) is a transmembrane immunoglobulin superfamily cell adhesion molecule involved in transendothelial migration and signal transduction. It is expressed in melanoma, squamous cell carcinoma, prostatic, ovarian, cervical and endometrial cancers and promotes tumour growth, angiogenesis and metastasis. Melanoma is the most common malignant oral tumour of dogs and also arises in the skin, nail bed and footpad. The aim of this study was to investigate the immunohistochemical expression of MCAM/CD146 in 51 canine melanomas, including oral, cutaneous and ocular tumours...
July 2017: Journal of Comparative Pathology
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