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https://www.readbyqxmd.com/read/29781255/combination-therapy-of-canine-osteosarcoma-with-canine-bone-marrow-stem-cells-bone-morphogenetic-protein-and-carboplatin-in-an-in-vivo-model
#1
R E G Rici, S E A L Will, A C L Luna, L F Melo, A C Santos, R F Rodrigues, R M Leandro, D A Maria
Osteosarcoma (OSA) is the most common malignant bone cancer in children and dogs. The therapeutic protocols adopted for dogs and humans are very similar, involving surgical options such as amputation. Besides surgical options, radiotherapy and chemotherapy also are adopted. However, hematologic, gastrointestinal and renal toxicity may occur because of chemotherapy treatments. Recent study clearly showed that mesenchymal stem cells (MSCs) combined with recombinant human bone morphogenetic protein (rhBMP-2) may be associated with decreases of the tumorigenic potential of canine OSA...
May 20, 2018: Veterinary and Comparative Oncology
https://www.readbyqxmd.com/read/29760982/biodynamic-digital-holography-of-chemoresistance-in-a-pre-clinical-trial-of-canine-b-cell-lymphoma
#2
Honggu Choi, Zhe Li, Hao Sun, Dan Merrill, John Turek, Michael Childress, David Nolte
Biodynamic digital holography was used to obtain phenotypic profiles of canine non-Hodgkin B-cell lymphoma biopsies treated with standard-of-care chemotherapy. Biodynamic signatures from the living 3D tissues were extracted using fluctuation spectroscopy from intracellular Doppler light scattering in response to the molecular mechanisms of action of therapeutic drugs that modify a range of internal cellular motions. The standard-of-care to treat B-cell lymphoma in both humans and dogs is a combination CHOP therapy that consists of doxorubicin, prednisolone, cyclophosphamide and vincristine...
May 1, 2018: Biomedical Optics Express
https://www.readbyqxmd.com/read/29755597/5-fluorouracil-may-enrich-cancer-stem-cells-in-canine-mammary-tumor-cells-in-vitro
#3
Bin Zhou, Yipeng Jin, Di Zhang, Degui Lin
Mammary gland carcinomas are the most common neoplasms in women and unsterilized female dogs. Owing to the existence of cancer stem cells (CSCs), chemotherapy is not able to cure these types of diseases completely. A number of studies have demonstrated that CSCs are resistant to chemotherapeutic drugs, but whether canine mammary tumor cells that have acquired resistance to 5-fluorouracil (5-FU) exhibited properties of CSCs remains unknown. The aim of the present study was to investigate whether 5-fluorouracil-resistant canine mammary tumor cells exhibited properties of CSCs...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29755462/comparison-of-phenotypic-and-functional-characteristics-between-canine-non-b-non-t-natural-killer-lymphocytes-and-cd3-cd5-dim-cd21-cytotoxic-large-granular-lymphocytes
#4
Soo-Hyeon Lee, Dong-Jun Shin, Yoseop Kim, Cheol-Jung Kim, Je-Jung Lee, Mee Sun Yoon, Tung Nguyen Thanh Uong, Dohyeon Yu, Ji-Youn Jung, Duck Cho, Bock-Gie Jung, Sang-Ki Kim, Guk-Hyun Suh
Natural killer (NK) cells play a pivotal role in the immune response against infections and malignant transformation, and adopted transfer of NK cells is thought to be a promising therapeutic approach for cancer patients. Previous reports describing the phenotypic features of canine NK cells have produced inconsistent results. Canine NK cells are still defined as non-B and non-T (CD3- CD21- ) large granular lymphocytes. However, a few reports have demonstrated that canine NK cells share the phenotypic characteristics of T lymphocytes, and that CD3+ CD5dim CD21- lymphocytes are putative canine NK cells...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29746883/allergooncology-generating-a-canine-anti-cancer-ige-against-the-epidermal-growth-factor-receptor-egfr
#5
Judit Fazekas-Singer, Josef Singer, Kristina M Ilieva, Miroslawa Matz, Ina Herrmann, Edzard Spillner, Sophia N Karagiannis, Erika Jensen-Jarolim
Anti-cancer immunotherapies currently rely on IgG antibodies. In line with the AllergoOncology concept we provide evidence that tumor-specific IgE, alone or combined with IgG, may be superior to IgG treatment alone. The novel can225IgE-λ was made for future studies in dogs as translational model patients.
May 7, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29732386/naturally-occurring-canine-invasive-urothelial-carcinoma-a-model-for-emerging-therapies
#6
REVIEW
Breann C Sommer, Deepika Dhawan, Timothy L Ratliff, Deborah W Knapp
The development of targeted therapies and the resurgence of immunotherapy offer enormous potential to dramatically improve the outlook for patients with invasive urothelial carcinoma (InvUC). Optimization of these therapies, however, is crucial as only a minority of patients achieve dramatic remission, and toxicities are common. With the complexities of the therapies, and the growing list of possible drug combinations to test, highly relevant animal models are needed to assess and select the most promising approaches to carry forward into human trials...
April 26, 2018: Bladder Cancer
https://www.readbyqxmd.com/read/29728289/bilateral-interdigitated-pacman-flap-for-round-and-oval-facial-defects
#7
Sang-Ha Oh, Hyeokjae Kwon, Sun Je Kim, Hyunwoo Kyung, Young Joon Seo, Dae Hyun Lew, Seung Han Song
BACKGROUND: Skin texture and color are important considerations during the reconstruction of facial defects, and anatomical borders should be preserved. Therefore, a local flap is a better option. In these cases, the authors repaired facial defects using a bilateral interdigitated VY flap. OBJECTIVE: We aim to present a modified bilateral Pacman flap technique for the reconstruction of round and oval facial defects. MATERIALS AND METHODS: We performed a retrospective chart review of 25 patients (26 cases) who underwent bilateral interdigitated Pacman flap repair of round and oval facial defects after Mohs surgery for skin cancer from January 2012 to December 2017...
April 12, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29724721/setd2-is-recurrently-mutated-in-whole-exome-sequenced-canine-osteosarcoma
#8
Sharadha Sakthikumar, Ingegerd Elvers, Jaegil Kim, Maja L Arendt, Rachael Thomas, Jason Turner-Maier, Ross Swofford, Jeremy Johnson, Steven E Schumacher, Jessica Alföldi, Erik Axelsson, Guillermo Couto, William Kisseberth, Mats E Pettersson, Gad Getz, Jennifer R S Meadows, Jaime F Modiano, Matthew Breen, Marcin Kierczak, Karin Forsberg-Nilsson, Voichita D Marinescu, Kerstin Lindblad-Toh
Osteosarcoma (OSA) is a debilitating bone cancer that affects humans, especially children and adolescents. A homologous form of OSA spontaneously occurs in dogs, and its differential incidence observed across breeds allows for the investigation of tumor mutations in the context of multiple genetic backgrounds. Using whole-exome sequencing and dogs from three susceptible breeds (22 golden retrievers, 21 Rottweilers, and 23 greyhounds), we found that OSA tumors show a high frequency of somatic copy number alterations (SCNA) affecting key oncogenes and tumor suppressor genes...
May 3, 2018: Cancer Research
https://www.readbyqxmd.com/read/29721849/sunitinib-does-not-acutely-alter-left-ventricular-systolic-function-but-induces-diastolic-dysfunction
#9
Takeshi Wada, Kentaro Ando, Atsuhiko T Naito, Yuji Nakamura, Ai Goto, Koki Chiba, Nur Jaharat Lubna, Xin Cao, Mihoko Hagiwara-Nagasawa, Hiroko Izumi-Nakaseko, Yuji Nakazato, Atsushi Sugiyama
PURPOSE: Cancer chemotherapies have improved the prognosis of cancer patients in recent years; however, their side effects on the cardiovascular systems have emerged as a major concern in the field of both cardiology and oncology. In particular, multi-targeted tyrosine kinase inhibitors are known to induce various types of cardiovascular adverse events including hypertension, QT-interval prolongation and heart failure, but their underlying mechanisms remain elusive. To explore how to better predict such drug-induced cardiovascular adverse events, we assessed the electropharmacological effects of sunitinib using the halothane-anesthetized dogs (n = 5), while plasma concentrations of cardiac enzymes including aspartate aminotransferase, lactate dehydrogenase, creatinine kinase and cardiac troponin I  were measured...
May 2, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29721368/cell-surface-vimentin-positive-macrophage-like-circulating-tumor-cells-as-a-novel-biomarker-of-metastatic-gastrointestinal-stromal-tumors
#10
Heming Li, Qing H Meng, Hyangsoon Noh, Neeta Somaiah, Keila E Torres, Xueqing Xia, Izhar S Batth, Cissimol P Joseph, Mengyuan Liu, Ruoyu Wang, Shulin Li
The clinical utility of circulating tumor cells (CTCs) has been investigated in numerous publications, but CTCs that express very typical immune cell markers have not been reported. Here we report a novel class of CTCs-CSV-positive macrophage-like CTCs (ML-CTCs). This nomenclature was based on the fact that this class of CTCs can be captured from blood samples of gastrointestinal stromal tumors (GISTs) patients using either the macrophage marker CD68 or our proprietary tumor-specific cell-surface vimentin (CSV) antibody 84-1; likewise, the captured ML-CTCs can be co-stained with both typical macrophage markers (CD14, CD68) and tumor cell markers (DOG-1, C-kit) but not CD45...
2018: Oncoimmunology
https://www.readbyqxmd.com/read/29721181/near-infrared-photoimmunotherapy-targeting-bladder-cancer-with-a-canine-anti-epidermal-growth-factor-receptor-egfr-antibody
#11
Tadanobu Nagaya, Shuhei Okuyama, Fusa Ogata, Yasuhiro Maruoka, Deborah W Knapp, Sophia N Karagiannis, Judit Fazekas-Singer, Peter L Choyke, Amy K LeBlanc, Erika Jensen-Jarolim, Hisataka Kobayashi
Anti-epidermal growth factor receptor (EGFR) antibody therapy is used in EGFR expressing cancers including lung, colon, head and neck, and bladder cancers, however results have been modest. Near infrared photoimmunotherapy (NIR-PIT) is a highly selective tumor treatment that employs an antibody-photo-absorber conjugate which is activated by NIR light. NIR-PIT is in clinical trials in patients with recurrent head and neck cancers using cetuximab-IR700 as the conjugate. However, its use has otherwise been restricted to mouse models...
April 10, 2018: Oncotarget
https://www.readbyqxmd.com/read/29699519/comprehensive-gene-expression-analysis-of-canine-invasive-urothelial-bladder-carcinoma-by-rna-seq
#12
Shingo Maeda, Hirotaka Tomiyasu, Masaya Tsuboi, Akiko Inoue, Genki Ishihara, Takao Uchikai, James K Chambers, Kazuyuki Uchida, Tomohiro Yonezawa, Naoaki Matsuki
BACKGROUND: Invasive urothelial carcinoma (iUC) is a major cause of death in humans, and approximately 165,000 individuals succumb to this cancer annually worldwide. Comparative oncology using relevant animal models is necessary to improve our understanding of progression, diagnosis, and treatment of iUC. Companion canines are a preferred animal model of iUC due to spontaneous tumor development and similarity to human disease in terms of histopathology, metastatic behavior, and treatment response...
April 27, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29695553/elevated-egf-levels-in-the-blood-serum-of-dogs-with-periodontal-diseases-and-oral-tumours
#13
Aleksandra Sobczyńska-Rak, Beata Żylińska, Izabela Polkowska, Tomasz Szponder
BACKGROUND/AIM: Paradontopathy and neoplasms of the oral cavity represent one of the greatest challenges in human and animal dentistry. EGF plays a key role in maintaining the integrity and proper rate of cell proliferation in normal oral epithelium. The aim of the present study was to study serum levels of EGF in dogs diagnosed with periodontal diseases and oral cavity tumours. MATERIALS AND METHODS: The samples comprised of cancerous tissue sections and serum obtained from dogs of various breeds, aged between 5-13 years...
May 2018: In Vivo
https://www.readbyqxmd.com/read/29688083/localized-delivery-of-therapeutic-doxorubicin-dose-across-the-canine-blood-brain-barrier-with-hyperthermia-and-temperature-sensitive-liposomes
#14
Amy Lee Bredlau, Anjan Motamarry, Chao Chen, M A McCrackin, Kris Helke, Kent E Armeson, Katrina Bynum, Ann-Marie Broome, Dieter Haemmerich
Most drugs cannot penetrate the blood-brain barrier (BBB), greatly limiting the use of anti-cancer agents for brain cancer therapy. Temperature sensitive liposomes (TSL) are nanoparticles that rapidly release the contained drug in response to hyperthermia (>40 °C). Since hyperthermia also transiently opens the BBB, we hypothesized that localized hyperthermia can achieve drug delivery across the BBB when combined with TSL. TSL-encapsulated doxorubicin (TSL-Dox) was infused intravenously over 30 min at a dose of 0...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29680384/treatment-of-solid-tumors-in-dogs-using-veterinary-high-intensity-focused-ultrasound-a-retrospective-clinical-study
#15
M-O Ryu, S-H Lee, J-O Ahn, W-J Song, Q Li, H-Y Youn
High-intensity focused ultrasound (HIFU) is a cancer treatment tool that focuses ultrasound energy on tumor tissues, which initiates necrosis via heat and mechanical effects. The efficacy of veterinary HIFU (vHIFU) was evaluated for the treatment of solid tumors in dogs. Data from 11 client-owned dogs with various solid tumors treated by vHIFU between 2013 and 2017 were retrospectively evaluated. Ten of the 11 dogs were followed up; clinical signs were alleviated in five. Four dogs exhibited a decrease in tumor size, and bleeding stopped in all four dogs with hemorrhagic tumors...
April 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29680383/tumour-associated-macrophages-relation-with-progression-and-invasiveness-and-assessment-of-m1-m2-macrophages-in-canine-mammary-tumours
#16
L N Monteiro, M A Rodrigues, D A Gomes, B S Salgado, G D Cassali
Macrophages represent a major component of the overall leucocyte population within neoplasms and are important for tumour behaviour in several cancers in human beings. However, little information regarding their role in canine mammary tumours (CMTs) is available. The aim of this study was to address the potential role of tumour-associated macrophages (TAMs) in CMTs. TAMs in CMTs excised from 82 female dogs were quantified at high power (400× magnification) and categorised as low (≤50) or high (>50) TAM counts...
April 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29666834/androgen-action-in-prostate-function-and-disease
#17
REVIEW
Partha P Banerjee, Subhadra Banerjee, Terry R Brown, Barry R Zirkin
Benign prostatic hyperplasia (BPH) is an enlargement of the prostate gland that is frequently found in aging men. Androgens are essential for the development and differentiated function of the prostate, as well as for proliferation and survival of prostatic cells. In man, dog and rodent, there are age-related decreases in serum testosterone. Despite the lower serum testosterone levels, benign prostatic hyperplasia increases with age in men and dogs, while age-dependent prostatic hyperplasia develops in the dorsal and lateral lobes of the rat prostate...
2018: American Journal of Clinical and Experimental Urology
https://www.readbyqxmd.com/read/29665565/evaluation-of-nkx3-1-and-c-myc-expression-in-canine-prostatic-cancer
#18
Carlos Eduardo Fonseca-Alves, Priscila Emiko Kobayashi, Renée Laufer-Amorim
NKX3.1/C-MYC cross-regulation has been reported in the normal human prostate, and loss of NKX3.1 and gain of C-MYC seem to be important events in prostate cancer development and progression. The dog can be an interesting model for human prostatic disease, and yet only one previous research study has shown deregulation of NKX3.1 and MYC in the canine prostate. To address the expression of NKX3.1 and C-MYC in different canine prostatic lesions, this study verified the gene and protein expression of NKX3.1 and C-MYC in normal canine prostatic tissues...
April 10, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29663940/ezh2-expression-in-naturally-occurring-canine-tumors
#19
Hyun-Ji Choi, Han-Byul Lee, Hyun-Kyu Park, Sung-Min Cho, Hyo-Jeong Han, Sang-Joon Lee, Ji-Young Lee, Su-Jeong Nam, Eun-Ho Cho, Woo-Chan Son
Enhancer of zeste homolog 2 (EZH2) shows upregulated expression in tumors and is an important driver of tumor development and progression. However, the mechanism underlying the mediation of tumor aggressiveness by EZH2 remains unclear. We here investigated the levels of EZH2 in various normal and tumorous dog tissues and compared these patterns with those of the corresponding human tissues. Immunohistochemical analysis showed positive staining for EZH2 in 76 of 82 cases of canine tumors, whereas low or negligible staining occurred in normal tissues and other canine tumors, including hepatocellular adenoma and lipoma...
April 2, 2018: Comparative Medicine
https://www.readbyqxmd.com/read/29656134/seroprevalence-and-risk-factors-of-hepatitis-e-virus-infection-in-cancer-patients-in-eastern-china
#20
Meng-Jie Bai, Na Zhou, Wei Dong, Guang-Xing Li, Wei Cong, Xing-Quan Zhu
OBJECTIVES: Hepatitis E virus (HEV) is a single-stranded RNA virus infecting a variety of animals and humans. However, little is known of HEV infection among cancer patients in China. This study provides new epidemiological data for the prevalence of co-infection of HEV in cancer patients, indicating that HEV infection is common in this group. METHODS: We recruited a total of 950 cancer patients and 950 control volunteers from Shandong Province, eastern China, to participate in our investigation...
April 12, 2018: International Journal of Infectious Diseases: IJID
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