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Canine lymphoma

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https://read.qxmd.com/read/30854786/cancer-testis-antigens-in-canine-histiocytic-sarcoma-and-other-malignancies
#1
Paige S Nemec, Alexander Kapatos, Jennifer C Holmes, Devorah Marks Stowe, Paul R Hess
Cancer-testis antigens (CTAs) are a category of self proteins aberrantly expressed in diverse malignancies, mostly solid tumors, due to epigenetic de-repression. Normally expressed only in fetal or gametogenic tissues, CTAs are tantalizing immunotherapy targets, since autoimmunity risks appear minimal. Few prevalent CTAs have been identified in human hematologic cancers, and just two in their veterinary counterparts. We sought to discover new CTAs in canine hematologic cancers such as histiocytic sarcoma (HS) and lymphoma to foster immunotherapy development...
March 10, 2019: Veterinary and Comparative Oncology
https://read.qxmd.com/read/30819429/incidence-characteristics-and-geographical-distributions-of-canine-and-human-non-hodgkin-s-lymphoma-in-the-porto-region-north-west-portugal
#2
K C Pinello, J Niza-Ribeiro, L Fonseca, A J de Matos
Lymphoma is one of the most common neoplasms in dogs and it is one of the top five causes of cancer-related deaths, similar to human lymphoma. Companion animal epidemiological studies define dogs as sentinels of potential risk factors for human health, mainly due to shared environments, shorter disease latencies, and spontaneous disease. The aims of this study were to describe human and canine epidemiologic features of non-Hodgkin's lymphoma (NHL) and their similarities, and to investigate a possible geographical association in the incidence risks in the Greater Porto area, in north-western Portugal...
March 2019: Veterinary Journal
https://read.qxmd.com/read/30811622/a-case-of-hemophagocytic-syndrome-progressing-into-large-granular-lymphoma-in-a-dog
#3
Makoto Akiyoshi, Masaharu Hisasue, Sakurako Neo, Masami Akiyoshi, Yuko Goto-Koshino
A 12-year-old castrated male mixed breed dog was presented with anorexia, lethargy, intermittent vomiting, diarrhea, and weight loss. Clinicopathologic and imaging abnormalities included pancytopenia, icterus, and splenomegaly with multiple minute hypoechogenic nodules. Bone marrow (BM) smears revealed 2.5% hemophagocytic macrophages. In addition, an increased number of small to intermediate lymphocytes (16.3%) and plasma cells (3.2%) were recognized in the BM smears. More than 80% of the lymphocytes contained multiple small intracytoplasmic magenta granules...
February 27, 2019: Veterinary Clinical Pathology
https://read.qxmd.com/read/30803469/fecal-concentrations-of-n-methylhistamine-in-common-marmosets-callithrix-jacchus
#4
Joseph Cyrus Parambeth, Franklin R López, Rosana Lopez, Sarah B Keyser, Jonathan A Lidbury, Jan S Suchodolski, Jörg M Steiner
Chronic lymphocytic enteritis (CLE) is a frequent disease in common marmosets. However, no diagnostic test for earlydetection of CLE is available. Mast cells have an important role in gastrointestinal disease. The purpose of this study wasto measure fecal concentrations of N-methylhistamine (NMH), a breakdown product of histamine metabolism, in common marmosets. A previously established NMH gas chromatography-mass spectrometry assay for canine feces and urine was used, and partial validation was performed. The reference intervals (n = 30) established for fecal NMH concentrations in common marmoset were 118...
February 25, 2019: Comparative Medicine
https://read.qxmd.com/read/30779310/evaluation-of-the-extent-of-neoplastic-infiltration-in-small-intestinal-tumours-in-dogs
#5
Michael Morrice, Gerry Polton, Sam Beck
There is currently a lack of evidence-based guidance when determining surgical margins for small intestinal tumours in dogs. The purpose of this study is to help the surgeon make informed clinical decisions about margins when confronted with a small intestinal mass. Twenty-seven canine small intestinal tumours were histologically diagnosed and then had further histological assessment at every centimeter from the edge of the palpable tumour to the surgical margin in oral, aboral and mesenteric directions. In all 10 carcinomas a 3 cm tissue margin in oral, aboral and mesenteric directions would have resulted in complete tumour resection...
February 19, 2019: Veterinary Medicine and Science
https://read.qxmd.com/read/30721107/virtual-oncology-clinic
#6
Michael W Nolan, Marton Balogh, Suzanne Shelly Waltman
Due to limitations in traditional approaches to didactic and clinical learning, professional veterinary medical students face challenges in developing skills and competencies related to clinical practice. The Veterinary Information Network's (VIN) Virtual Clinic (VVC) aims to support learning by using gaming techniques to simulate clinical case management in a low-risk setting. The VVC lets students explore medical scenarios inside a virtual hospital. The purpose of this article is to describe the development and implementation of a learning approach that blends classroom instructor-directed learning with online simulation-based learning, using the VVC...
February 5, 2019: Journal of Veterinary Medical Education
https://read.qxmd.com/read/30684308/canine-cd4-t-cell-lymphoma-identified-by-flow-cytometry-exhibits-a-consistent-histomorphology-and-gene-expression-profile
#7
Lauren J Harris, Kelly L Hughes, E J Ehrhart, Julia D Labadie, Janna Yoshimoto, Anne C Avery
T-cell lymphomas (TCL) are a diverse group of neoplasms with variable diagnostic features, pathophysiologies, therapeutic responses, and clinical outcomes. In dogs, TCL includes indolent and aggressive tumors such as T-zone lymphoma (TZL) and peripheral T-cell lymhoma (PTCL), respectively. Delineation of molecular subtypes and investigation into underlying pathophysiologies of aggressive TCLs remains inadequate. We investigate the correlations between flow cytometry and histopathology of 73 cases of nodal TCL...
January 25, 2019: Veterinary and Comparative Oncology
https://read.qxmd.com/read/30666777/evaluation-of-a-multi-agent-chemotherapy-protocol-combining-dexamethasone-melphalan-actinomycin-d-and-cytarabine-dmac-for-the-treatment-of-resistant-canine-non-hodgkin-high-grade-lymphomas-a-single-centre-s-experience
#8
Katherine Smallwood, Jean-Benoit Tanis, Iain Andrew Grant, Laura Blackwood, David Roper Killick, Isabel Amores-Fuster, James Elliott, Aran Mas, Aaron Harper, Mary Marrington, Riccardo Finotello
The DMAC protocol (dexamethasone, melphalan, actinomycin-D, cytarabine) has been evaluated in American studies for the treatment of relapsed canine lymphoma, comparing similarly to other rescue protocols. The aim of this study was to evaluate efficacy and toxicity of DMAC, in a larger United Kingdom cohort of resistant canine lymphomas. Medical records of dogs with resistant non-Hodgkin high-grade lymphomas that received DMAC as a rescue protocol were reviewed from 2007-2017. Response, time from initiation to discontinuation (TTD), and toxicity (VCOG criteria) were assessed...
January 21, 2019: Veterinary and Comparative Oncology
https://read.qxmd.com/read/30636524/immunophenotypic-characterization-of-canine-splenic-follicular-derived-b-cell-lymphoma
#9
Leah Stein, Cynthia Bacmeister, Kris Ylaya, Patricia Fetsch, Zengfeng Wang, Stephen M Hewitt, Matti Kiupel
Marginal zone lymphoma (MZL) and mantle cell lymphoma (MCL) belong to a subgroup of indolent B-cell lymphomas most commonly reported in the canine spleen. The goal of this study was to characterize the immunophenotype of splenic MZL and MCL in comparison to their human counterparts. Ten MCLs and 28 MZLs were selected based on morphology. A tissue microarray was generated, and expression of CD3, CD5, CD10, CD45, CD20, CD79a, Pax-5, Bcl-2, Bcl-6, cyclin D1, cyclin D3, MCL-1, MUM-1, and Sox-11 was evaluated. Neoplastic cells in all MCLs and MZLs were positive for CD5, CD20, CD45, CD79a, and BCL2 and negative for CD3, CD10, Bcl-6, cyclin D1, and cyclin D3...
January 13, 2019: Veterinary Pathology
https://read.qxmd.com/read/30592723/establishment-of-a-bioluminescent-canine-b-cell-lymphoma-xenograft-model-for-monitoring-tumor-progression-and-treatment-response-in-preclinical-studies
#10
Joana N R Dias, Ana S André, Sandra I Aguiar, Joana Ministro, Joana Oliveira, Maria C Peleteiro, Barbara Rütgen, Lurdes Gano, João D G Correia, Soraia S Oliveira, Joao Goncalves, Solange Gil, Luís Tavares, Frederico Aires-da-Silva
Canine diffuse large B-cell lymphoma (DLBCL) is one of the most common cancers in dogs which shares remarkable similarities with its human counterpart, making the dog an excellent model for the investigation of novel therapeutic agents. However, the integration of canine lymphoma in comparative studies has been limited due in part to the lack of suitable xenograft mouse models for preclinical studies. To overcome these limitations, we established and characterized a localized subcutaneous bioluminescent canine DLBCL xenograft mouse model...
2018: PloS One
https://read.qxmd.com/read/30563208/cellular-immunotherapy-of-canine-cancer
#11
REVIEW
Selamawit Addissie, Hans Klingemann
Infusions with immune cells, such as lymphocytes or natural killer (NK) cells, represent one of several modalities of immunotherapy. In human patients with advanced B-cell leukemia or lymphoma, infusions with chimeric antigen receptor (CAR) T-lymphocytes have shown promising responses. However, the scientific and clinical development of cell-based therapies for dogs, who get cancer of similar types as humans, is lagging behind. One reason is that immune cells and their functionality in dogs are less well characterized, largely due a lack of canine-specific reagents to detect surface markers, and specific cytokines to isolate and expand their immune cells...
December 6, 2018: Veterinary Sciences
https://read.qxmd.com/read/30548472/canine-non-epitheliotropic-cd4-positive-cutaneous-t-cell-lymphoma-a-case-report
#12
Hitoshi Kondo, Yumiko Kagawa, Kinji Shirota, Peter F Moore, Masahiko Nagata
A 5-year-old, spayed female French Bulldog presented with multiple papules on the skin of the scapular area. Histopathological examination of punch biopsy samples revealed dense infiltration of small lymphoid cells in the superficial dermis and in areas surrounding hair follicles. Immunohistochemical analysis indicated that these cells were positive for CD3, CD4, and TCRαβ, but negative for CD1c, CD8α, CD8β, CD11c, CD20, CD45RA, CD90, MHC-II, and TCRγδ. In addition, CD45 was highly expressed, and the proliferation fraction was very low...
December 12, 2018: Veterinary Medicine and Science
https://read.qxmd.com/read/30545928/new-molecular-and-therapeutic-insights-into-canine-diffuse-large-b-cell-lymphoma-elucidates-the-role-of-the-dog-as-a-model-for-human-disease
#13
Luca Aresu, Serena Ferraresso, Laura Marconato, Luciano Cascione, Sara Napoli, Eugenio Gaudio, Ivo Kwee, Chiara Tarantelli, Andrea Testa, Chiara Maniaci, Alessio Ciulli, Petra Hillmann, Thomas Bohnacker, Matthias P Wymann, Stefano Comazzi, Massimo Milan, Fulvio Riondato, Giulia Dalla Rovere, Mery Giantin, Diana Giannuzzi, Francesco Bertoni
No abstract text is available yet for this article.
December 13, 2018: Haematologica
https://read.qxmd.com/read/30537967/tel-evax-a-genetic-vaccine-targeting-telomerase-for-treatment-of-canine-lymphoma
#14
Joseph A Impellizeri, Alessandra Gavazza, Eliana Greissworth, Anna Crispo, Maurizio Montella, Gennaro Ciliberto, George Lubas, Luigi Aurisicchio
BACKGROUND: we have recently shown that Tel-eVax, a genetic vaccine targeting dog telomerase (dTERT) and based on Adenovirus (Ad)/DNA Electro-Gene-Transfer (DNA-EGT) technology can induce strong immune response and increase overall survival (OS) of dogs affected by multicentric Diffuse Large B cell Lymphoma (DLBCL) when combined to COP therapy in a double-arm study. Here, we have utilized a clinically validated device for veterinary electroporation called Vet-ePorator™, based on Cliniporator™ technology currently utilized and approved in Europe for electrochemotherapy applications and adapted to electrogenetransfer (EGT)...
December 11, 2018: Journal of Translational Medicine
https://read.qxmd.com/read/30533020/validation-of-epigenetic-mechanisms-regulating-gene-expression-in-canine-b-cell-lymphoma-an-in-vitro-and-in-vivo-approach
#15
Silvia Da Ros, Luca Aresu, Serena Ferraresso, Eleonora Zorzan, Eugenio Gaudio, Francesco Bertoni, Mauro Dacasto, Mery Giantin
Despite canine B-cell Lymphoma (BCL) representing the most common haematological tumour, epigenetic events driving development and progression are scarcely known. Recently, canine Diffuse Large BCL (DLBCL) DNA methylome by genome-wide CpG microarray has identified genes and pathways associated to pathogenesis. To validate data previously obtained by array analysis, the CLBL-1 cell line was used and the HOXD10, FGFR2, ITIH5 and RASAL3 genes were selected. CLBL-1 cells were treated with two hypomethylating drugs (HDs; IC50, 50% inhibitory concentration), i...
2018: PloS One
https://read.qxmd.com/read/30522494/t-cell-lymphoma-in-the-eyelid-of-a-9-year-old-english-setter
#16
Lauge Hjorth Mikkelsen, Frederik Holm, Erik Clasen-Linde, Pernille Engraff, Steffen Heegaard
BACKGROUND: Eyelid tumours are frequently found in dogs, most of these being benign. In case of an ulcerating eyelid tumour, malignancy must be considered. We report a unique case of a low-grade peripheral T-cell lymphoma in the eyelid of a 9-year-old English Setter. CASE PRESENTATION: A 9-year-old Setter presented with a 6-month history of an eyelid ulcer. A malignant eyelid neoplasm was suspected, and the lesion was surgically excised. No other treatment was applied, and 19 months after excision the dog was still well...
December 6, 2018: Acta Veterinaria Scandinavica
https://read.qxmd.com/read/30481986/corneoconjunctival-manifestations-of-lymphoma-in-three-dogs
#17
Seonmi Kang, Manbok Jeong, Kangmoon Seo
An 8-year-old Shih Tzu, a 5-year-old Maltese, and a 10-year-old Maltese presented with conjunctival hyperemia and peripheral corneal edema. Severe conjunctival thickening with varying degrees of corneal extension were observed. Cytological examination showed many large lymphocytes with malignant changes in the conjunctiva and were consistent with findings in fine-needle aspiration samples taken from the regional lymph nodes. They were diagnosed as having stage V multicentric lymphoma. When conjunctival thickening is observed in canine patients with multicentric lymphoma, conjunctival metastasis with infiltration of neoplastic lymphoid cells should be included in the differential diagnosis...
November 26, 2018: Journal of Veterinary Science
https://read.qxmd.com/read/30474245/prevalence-of-cd20-cutaneous-epitheliotropic-t-cell-lymphoma-in-dogs-a-retrospective-analysis-of-24-cases-2011-2018-in-the-usa
#18
Trenton S Ewing, Jason B Pieper, Adam W Stern
BACKGROUND: Limited information is known about the baseline frequency of canine CD20 positive (+ ) cutaneous epitheliotropic T-cell lymphoma. A single canine case report has been published. OBJECTIVES: To characterize the baseline frequency of CD20+ staining in cases of canine cutaneous epitheliotropic T-cell lymphoma; to assess its values as a prognostic indicator. ANIMALS: Skin biopsies from 24 client-owned animals diagnosed with cutaneous epitheliotropic lymphoma were assessed...
November 25, 2018: Veterinary Dermatology
https://read.qxmd.com/read/30458771/retrospective-analysis-of-doxorubicin-and-prednisone-as-first-line-therapy-for-canine-b-cell-lymphoma
#19
Sami Al-Nadaf, Robert B Rebhun, Kaitlin M Curran, Rachel O Venable, Katherine A Skorupski, Jennifer L Willcox, Jenna H Burton
BACKGROUND: A doxorubicin (DOX)-based chemotherapy protocol, CHOP, is the most effective treatment for canine high-grade B-cell lymphoma; however, the cost and time requirements associated with this protocol are not feasible for many pet owners. An alternative treatment option is the use of DOX, the most effective drug, in combination with prednisone. Prior studies with single-agent DOX included dogs with T-cell lymphoma, a known negative prognostic factor, which may have resulted in shorter reported survival times than if dogs with B-cell lymphoma were analyzed separately...
November 20, 2018: BMC Veterinary Research
https://read.qxmd.com/read/30425960/morphological-characterization-of-canine-retrobulbar-lymphoma
#20
Natthanet Sritrakoon, Kannika Siripattarapravat, Phudit Maneesaay, Chidozie J Amuzie, Aree Thayananuphat
This report characterized seven cases of canine retrobulbar lymphoma that have been diagnosed during 2008 to 2014 by immunophenotyping of CD3 and Pax5. Classification of lymphoma were performed according to the revised WHO guidelines. Four retrobulbar lymphomas were of T-cell origin, while the others were of B-cell. Out of 7 cases, four subtypes were diagnosed in this study; T-cell-rich large B-cell lymphoma (3/7), T-cell lymphoblastic lymphoma (2/7), peripheral T-cell lymphoma (1/7), and cutaneous nonepitheliotropic lymphoma (1/7)...
2018: Open Veterinary Journal
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