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Klinkel S, Marchewski J, Witt S, Roscher K. [Retropharyngeal manifestation of T-cell-rich B-cell lymphoma in a 7-year-old Icelandic gelding]. Tierarztl Prax Ausg G Grosstiere Nutztiere 2024; 52:46-52. [PMID: 38412951 DOI: 10.1055/a-2246-2910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
A 7-year-old Icelandic gelding was presented with acute severe dyspnea of one day duration and purulent nasal discharge that had been present for 6 weeks. Clinically, the initial examination focused on severe enlargement of the mandibular and retropharyngeal lymph nodes as well as a mixed dyspnea.The diagnosis of a malignant lymphoma was evident following laboratory diagnostics, endoscopy, and cytological examination of a fine needle aspiration of a mandibular lymph node. The gelding was euthanized due to the poor prognosis and a significantly disturbed general condition. Pathohistological examination revealed a multicentric T-cell-rich B-cell lymphoma.
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Affiliation(s)
- Samira Klinkel
- Klinik für Pferde, Innere Medizin, Klinikum Veterinärmedizin, Justus-Liebig-Universität Gießen
| | - Julia Marchewski
- Institut für Veterinär-Pathologie, Justus-Liebig-Universität Gießen
| | - Swantje Witt
- Klinische Pathophysiologie und Klinische Laboratoriumsdiagnostik, Klinikum Veterinärmedizin, Justus-Liebig-Universität Gießen
| | - Katja Roscher
- Klinik für Pferde, Innere Medizin, Klinikum Veterinärmedizin, Justus-Liebig-Universität Gießen
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Toyoda H, Tani A, Goto-Koshino Y, Motegi T, Sakamoto M, Mochizuki T, Harada K, Kobayashi T, Setoguchi A, Shizuta Y, Mizuno T, Irie M, Nakamichi J, Tsujimoto H, Ohmi A, Fukuoka R, Nakamura Y, Tomiyasu H. Gene expression profiles associated with early relapse during first remission induction in canine multicentric high-grade B-cell lymphoma. J Vet Med Sci 2024; 86:18-27. [PMID: 37952972 PMCID: PMC10849849 DOI: 10.1292/jvms.23-0269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 10/29/2023] [Indexed: 11/14/2023] Open
Abstract
Although chemotherapy using CHOP-based protocol induces remission in most cases of canine multicentric high-grade B-cell lymphoma (mhBCL), some cases develop early relapse during the first induction protocol. In this study, we examined the gene expression profiles of canine mhBCL before chemotherapy and investigated their associations with early relapse during the first whole CHOP-based protocol. Twenty-five cases of mhBCL treated with CHOP-based protocol as first induction chemotherapy were included in this study. Sixteen cases completed the first whole CHOP-based protocol without relapse (S-group), and nine developed relapse during the chemotherapy (R-group). RNA-seq was performed on samples from neoplastic lymph nodes. Differentially expressed genes (DEGs) were extracted by the comparison of gene expression profiles between S- and R-groups, and the differences in the expression levels of these genes were validated by RT-qPCR. Extracted 179 DEGs included the genes related to chemokine CC motif ligand, T-cell receptor signaling pathway, and PD-L1 expression and PD-1 checkpoint pathway. We focused on chemokine CC motif ligand, and CCL4 was confirmed to be significantly downregulated in the R-group (P=0.039). We also focused on the genes related to T-cell signaling pathway, and CD3E (P=0.039), ITK (P=0.023), and LAT (P=0.023) genes were confirmed to be significantly upregulated in the R-group. The current results suggest that both changes in tumor cells and the interactions between tumor cells and immune cells are associated with the efficacy of the chemotherapy for first remission induction.
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Affiliation(s)
- Hiroto Toyoda
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Akiyoshi Tani
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yuko Goto-Koshino
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Tomoki Motegi
- Boston University School of Medicine, Department of Medicine, Division of Computational Biomedicine, Boston, MA, USA
| | - Mika Sakamoto
- Genome Informatics Laboratory, National Institute of Genetics, Shizuoka, Japan
| | - Takako Mochizuki
- Genome Informatics Laboratory, National Institute of Genetics, Shizuoka, Japan
| | - Kei Harada
- Japan Small Animal Cancer Center, Saitama, Japan
| | | | | | | | - Takuya Mizuno
- Laboratory of Molecular Diagnostics and Therapeutics, Joint Graduate School of Veterinary Medicine, Yamaguchi University, Yamaguchi, Japan
| | | | - Jun Nakamichi
- Japan Animal Referral Medical Center, Kanagawa, Japan
| | | | - Aki Ohmi
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Ray Fukuoka
- Veterinary Medical Center, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yasukazu Nakamura
- Genome Informatics Laboratory, National Institute of Genetics, Shizuoka, Japan
| | - Hirotaka Tomiyasu
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Teoh YB, Ishizaki T, Kagawa Y, Yokoyama S, Jelinek J, Matsumoto Y, Tomiyasu H, Tsujimoto H, Takiguchi M, Yamazaki J. Use of genome-wide DNA methylation analysis to identify prognostic CpG site markers associated with longer survival time in dogs with multicentric high-grade B-cell lymphoma. J Vet Intern Med 2024; 38:316-325. [PMID: 38115210 PMCID: PMC10800228 DOI: 10.1111/jvim.16931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 10/25/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND DNA methylation analysis might identify prognostic CpG sites in CHOP-treated dogs with multicentric high-grade B-cell lymphoma (MHGL) with heterogenous prognosis. OBJECTIVE To identify prognostic CpG sites of MHGL through genome-wide DNA methylation analysis with pyrosequencing validation. ANIMALS Test group: 24 dogs. Validation group: 100 dogs. All client-owned dogs were diagnosed with MHGL and treated with CHOP chemotherapy. METHODS Cohort study. DNA was extracted from lymph node samples obtained via FNA. Genome-wide DNA methylation analysis using Digital Restriction Enzyme Analysis of Methylation (DREAM) was performed on the test group to identify differentially methylated CpG sites (DMCs). Bisulfite pyrosequencing was used to measure methylation status of candidate DMCs in the validation group. Median survival times (MST) were analyzed using Kaplan-Meier (log-rank) product limit method. RESULTS DREAM analyzed 101 576 CpG sites. Hierarchical clustering of 16 262 CpG sites in test group identified group with better prognosis (MST = 55-477 days vs 10-301 days, P = .007). Volcano plot identified 1371 differentially methylated CpG sites (DMCs). DMC near the genes of FAM213A (DMC-F) and PHLPP1 (DMC-P) were selected as candidates. Bisulfite-pyrosequencing performed on validation group showed group with methylation level of DMC-F < 40% had favorable prognosis (MST = 11-1072 days vs 8-1792 days, P = .01), whereas group with the methylation level combination of DMC-F < 40% plus DMC-P < 10% had excellent prognosis (MST = 18-1072 days vs 8-1792 days, P = .009). CONCLUSION AND CLINICAL IMPORTANCE Methylation status of prognostic CpG sites delineate canine MGHL cases with longer MST, providing owners with information on expectations of potential improved treatment outcomes.
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Affiliation(s)
- Yong Bin Teoh
- Translational Research Unit, Veterinary Teaching Hospital, Graduate School of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- One Health Research CenterHokkaido UniversitySapporoHokkaidoJapan
| | | | | | - Shoko Yokoyama
- Translational Research Unit, Veterinary Teaching Hospital, Graduate School of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- One Health Research CenterHokkaido UniversitySapporoHokkaidoJapan
| | | | | | - Hirotaka Tomiyasu
- Laboratory of Veterinary Internal MedicineUniversity of TokyoTokyoJapan
| | - Hajime Tsujimoto
- Japan Animal Referral Medical Center (JARMeC)KawasakiKanagawaJapan
| | - Mitsuyoshi Takiguchi
- One Health Research CenterHokkaido UniversitySapporoHokkaidoJapan
- Laboratory of Veterinary Internal MedicineHokkaido UniversitySapporoHokkaidoJapan
| | - Jumpei Yamazaki
- Translational Research Unit, Veterinary Teaching Hospital, Graduate School of Veterinary MedicineHokkaido UniversitySapporoHokkaidoJapan
- One Health Research CenterHokkaido UniversitySapporoHokkaidoJapan
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Best MP, Straw RC, Gumpel E, Fry DR. Long-term remission and survival in dogs with high-grade, B cell lymphoma treated with chemotherapy with or without sequential low-dose rate half-body irradiation. J Vet Intern Med 2023; 37:2368-2374. [PMID: 37700548 PMCID: PMC10658474 DOI: 10.1111/jvim.16840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 08/21/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND Standard of care for dogs with high-grade lymphoma, multiagent chemotherapy, achieves good initial responses but long-term remissions are infrequent; previous studies using half-body irradiation suggest improved long-term outcomes. HYPOTHESIS The addition of low-dose rate half-body irradiation would improve outcomes in dogs with B-cell lymphoma. ANIMALS Client-owned dogs with stage III or higher, substage a, B-cell lymphoma that achieved complete remission after 4 doses of multiagent chemotherapy. METHODS A case-controlled design comparing 2-year remission and survival rates between dogs treated with CHOP-based chemotherapy and those treated with chemotherapy and sequential low-dose rate half-body irradiation. RESULTS Thirty-eight dogs were enrolled with 18 included in final analysis, 9 prospectively-enrolled dogs and 9 case-matched historical controls. The irradiation cohort's 2-year disease-free rate was 56% whereas median duration exceeded the 730-day study period compared with 0% and 261 days in the chemotherapy only group. Remission duration significantly differed between cohorts (P < .01), hazard ratio 0.218 (95% CI: 0.06-0.77). The irradiation cohort's 2-year survival rate was 78% with median overall survival duration exceeding the 730 day study period compared with 11% and 286 days in the chemotherapy only group. Overall survival time significantly differed between cohorts (P < .02), hazard ratio 0.173 (95% CI: 0.03-0.839). CONCLUSIONS AND CLINICAL IMPORTANCE The improved long-term outcome achieved by dogs administered sequential low-dose rate half-body irradiation in this study is similar to previous observational studies. Where long-term remission is sought in dogs with B-cell lymphoma low-dose rate half-body irradiation could be considered in addition to standard chemotherapy.
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Affiliation(s)
| | - Rod C. Straw
- Brisbane Veterinary Specialist CentreBrisbaneQueenslandAustralia
- The Australian Animal Cancer FoundationAlbany CreekQueenslandAustralia
| | - Elias Gumpel
- Small Animal Specialist HospitalNorth RydeNew South WalesAustralia
| | - Darren R. Fry
- Brisbane Veterinary Specialist CentreBrisbaneQueenslandAustralia
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Barton CK, Hughes KL, Cowan C, Nout-Lomas YS, Nelson BB. An Unusual Cause of Femoral Nerve Paresis in a Horse: Disseminated B Cell Lymphoma With Plasmacytoid Differentiation and Direct Neuronal Invasion. J Equine Vet Sci 2023; 126:104502. [PMID: 37120116 DOI: 10.1016/j.jevs.2023.104502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/17/2023] [Accepted: 04/24/2023] [Indexed: 05/01/2023]
Abstract
A 21-year-old Quarter Horse mare presented with a chronic, progressively worsening left pelvic limb lameness of 3 weeks duration. The initial examination identified a consistent lameness at a walk. Neurological examination showed sensory and gait abnormalities consistent with left femoral nerve dysfunction. The horse minimally advanced the leg cranially and had a shortened stride length at the walk. During the stance phase, the heels of the left hind foot did not contact the ground and the horse quickly took weight off of the limb. Diagnostic imaging (ultrasound and nuclear scintigraphy) examinations did not reveal a cause. Severe lymphocytosis was identified on complete blood cell count (69,600 cells /uL; reference range: 1,500-4,000 cells/uL), suggestive of lymphoma. Postmortem examination revealed focal swelling of the left femoral nerve. Multiple masses were found in the stomach, large colon, adrenal gland, mesentery, heart, and meninges. The entire left pelvic limb was dissected and did not reveal other causes of the gait deficit. Histologic evaluation of the left femoral nerve revealed disseminated intermediate cell size B cell lymphoma, with an immunophenotype suggestive of plasmacytoid differentiation. These lymphocytes infiltrated the femoral nerve at the location of the focal nerve swelling, in addition to other peripheral nerves. This case highlights a horse with an atypical diagnosis of femoral nerve paresis caused by direct neoplastic lymphocyte infiltration, deriving from disseminated B cell lymphoma with plasmacytoid differentiation (neurolymphomatosis). Though rare, disseminated lymphoma with direct nerve infiltration should be considered in horses with peripheral neuropathies.
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Affiliation(s)
- Charlotte K Barton
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado.
| | - Kelly L Hughes
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Catharine Cowan
- Department of Microbiology, Immunology and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Yvette S Nout-Lomas
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
| | - Brad B Nelson
- Department of Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, Colorado
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Brunati G, Pintore L, Avallone G, Tomba A, Cantile C, Valenti P. A case of spermatic cord B-cell lymphoma relapsing to the brain in a dog. Can Vet J 2023; 64:529-533. [PMID: 37265807 PMCID: PMC10204885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A 13-year-old, intact male mixed-breed dog was referred to our clinic for lethargy and asthenia following an episode of gastroenteritis. As an incidental finding during abdominal ultrasound, a mass on the right spermatic cord was seen. Cytology of the mass revealed a monomorphic population of large, round cells with a lymphoid appearance. A bilateral orchiectomy was conducted, and histopathology revealed the presence of a B-cell lymphoma in the right spermatic cord. Based on clinical staging, which showed no involvement of other sites, no additional treatment was administered. Recheck evaluations were scheduled for every 3 mo thereafter. Five months after surgery, the dog developed left central vestibular syndrome with a paradoxical right-sided head tilt. An MRI of the brain showed multifocal lesions and, due to a rapidly worsening clinical condition, the dog was humanely euthanized. The histopathology of the brain lesions was consistent with B-cell lymphoma. Key clinical message: This is the first report of a primary spermatic cord lymphoma relapsing to the brain in a dog. Although rare, spermatic cord tumors should be included among the differential diagnoses for masses arising from the spermatic cord. If lymphoma is diagnosed, location to other sites, especially to the central nervous system, should be considered.
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Affiliation(s)
- Giada Brunati
- Clinica Veterinaria Malpensa AniCura, Via G. Marconi, 27-21017 Samarate (VA), Italy (Brunati, Pintore, Valenti); Department of Veterinary Medical Sciences, University of Bologna, Via Zamboni, 33-40126 Bologna (BO), Italy (Avallone); Norad Diagnostica, Via Macchi, Via Engalfredo - 21017 Samarate (VA), Italy (Tomba); Department of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2-56124 Pisa (PI), Italy (Cantile)
| | - Laura Pintore
- Clinica Veterinaria Malpensa AniCura, Via G. Marconi, 27-21017 Samarate (VA), Italy (Brunati, Pintore, Valenti); Department of Veterinary Medical Sciences, University of Bologna, Via Zamboni, 33-40126 Bologna (BO), Italy (Avallone); Norad Diagnostica, Via Macchi, Via Engalfredo - 21017 Samarate (VA), Italy (Tomba); Department of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2-56124 Pisa (PI), Italy (Cantile)
| | - Giancarlo Avallone
- Clinica Veterinaria Malpensa AniCura, Via G. Marconi, 27-21017 Samarate (VA), Italy (Brunati, Pintore, Valenti); Department of Veterinary Medical Sciences, University of Bologna, Via Zamboni, 33-40126 Bologna (BO), Italy (Avallone); Norad Diagnostica, Via Macchi, Via Engalfredo - 21017 Samarate (VA), Italy (Tomba); Department of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2-56124 Pisa (PI), Italy (Cantile)
| | - Anna Tomba
- Clinica Veterinaria Malpensa AniCura, Via G. Marconi, 27-21017 Samarate (VA), Italy (Brunati, Pintore, Valenti); Department of Veterinary Medical Sciences, University of Bologna, Via Zamboni, 33-40126 Bologna (BO), Italy (Avallone); Norad Diagnostica, Via Macchi, Via Engalfredo - 21017 Samarate (VA), Italy (Tomba); Department of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2-56124 Pisa (PI), Italy (Cantile)
| | - Carlo Cantile
- Clinica Veterinaria Malpensa AniCura, Via G. Marconi, 27-21017 Samarate (VA), Italy (Brunati, Pintore, Valenti); Department of Veterinary Medical Sciences, University of Bologna, Via Zamboni, 33-40126 Bologna (BO), Italy (Avallone); Norad Diagnostica, Via Macchi, Via Engalfredo - 21017 Samarate (VA), Italy (Tomba); Department of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2-56124 Pisa (PI), Italy (Cantile)
| | - Paola Valenti
- Clinica Veterinaria Malpensa AniCura, Via G. Marconi, 27-21017 Samarate (VA), Italy (Brunati, Pintore, Valenti); Department of Veterinary Medical Sciences, University of Bologna, Via Zamboni, 33-40126 Bologna (BO), Italy (Avallone); Norad Diagnostica, Via Macchi, Via Engalfredo - 21017 Samarate (VA), Italy (Tomba); Department of Veterinary Sciences, University of Pisa, Viale delle Piagge, 2-56124 Pisa (PI), Italy (Cantile)
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Hughes KL, Rout ED, Avery PR, Pavuk AA, Avery AC, Moore AR. A series of heterogeneous lymphoproliferative diseases with CD3 and MUM1 co-expressed in cats and dogs. J Vet Diagn Invest 2023; 35:22-33. [PMID: 36424869 PMCID: PMC9751460 DOI: 10.1177/10406387221139799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Lymphoma diagnosis in dogs and cats is continually evolving as new subtypes and human correlates are being recognized. In humans, T-cell lymphomas with MUM1 expressed and plasma cell neoplasia or B-cell lymphomas with CD3 expressed aberrantly are reported only rarely. We report here a case series of tumors in dogs and cats with CD3 and MUM1 co-expressed as determined by immunocytochemistry or immunohistochemistry. Lineage was assigned for these tumors by 3 board-certified pathologists and a veterinary immunologist based on review of clinical and cellular features and the results of ancillary testing including PCR for antigen receptor rearrangements, flow cytometry, and serum protein electrophoresis with immunofixation. In cats, 7 of 7 tumors, and in dogs, 3 of 6 tumors with CD3 and MUM1 co-expressed had clonal rearrangement of the immunoglobulin gene or serum monoclonal immunoglobulin, consistent with a diagnosis of a plasma cell neoplasia or myeloma-related disorder with CD3 expressed aberrantly. Disease was often disseminated; notably, 3 of 7 feline cases had cutaneous and/or subcutaneous involvement in the tarsal area. In dogs, 3 of 6 cases had a clonal T-cell receptor gamma result and no clonal immunoglobulin gene rearrangement and were diagnosed as a T-cell tumor with MUM1 expressed. The use of multiple testing modalities in our series of tumors with plasma-cell and T-cell antigens in dogs and cats aided in the comprehensive identification of the lymphoproliferative disease subtype.
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Affiliation(s)
- Kelly L. Hughes
- Department of Microbiology, Immunology, Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Emily D. Rout
- Department of Microbiology, Immunology, Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Paul R. Avery
- Department of Microbiology, Immunology, Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | | | - Anne C. Avery
- Department of Microbiology, Immunology, Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - A Russell Moore
- Department of Microbiology, Immunology, Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
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Tawa GJ, Braisted J, Gerhold D, Grewal G, Mazcko C, Breen M, Sittampalam G, LeBlanc AK. Transcriptomic profiling in canines and humans reveals cancer specific gene modules and biological mechanisms common to both species. PLoS Comput Biol 2021; 17:e1009450. [PMID: 34570764 PMCID: PMC8523068 DOI: 10.1371/journal.pcbi.1009450] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 10/18/2021] [Accepted: 09/14/2021] [Indexed: 12/25/2022] Open
Abstract
Understanding relationships between spontaneous cancer in companion (pet) canines and humans can facilitate biomarker and drug development in both species. Towards this end we developed an experimental-bioinformatic protocol that analyzes canine transcriptomics data in the context of existing human data to evaluate comparative relevance of canine to human cancer. We used this protocol to characterize five canine cancers: melanoma, osteosarcoma, pulmonary carcinoma, B- and T-cell lymphoma, in 60 dogs. We applied an unsupervised, iterative clustering method that yielded five co-expression modules and found that each cancer exhibited a unique module expression profile. We constructed cancer models based on the co-expression modules and used the models to successfully classify the canine data. These canine-derived models also successfully classified human tumors representing the same cancers, indicating shared cancer biology between canines and humans. Annotation of the module genes identified cancer specific pathways relevant to cells-of-origin and tumor biology. For example, annotations associated with melanin production (PMEL, GPNMB, and BACE2), synthesis of bone material (COL5A2, COL6A3, and COL12A1), synthesis of pulmonary surfactant (CTSH, LPCAT1, and NAPSA), ribosomal proteins (RPL8, RPS7, and RPLP0), and epigenetic regulation (EDEM1, PTK2B, and JAK1) were unique to melanoma, osteosarcoma, pulmonary carcinoma, B- and T-cell lymphoma, respectively. In total, 152 biomarker candidates were selected from highly expressing modules for each cancer type. Many of these biomarker candidates are under-explored as drug discovery targets and warrant further study. The demonstrated transferability of classification models from canines to humans enforces the idea that tumor biology, biomarker targets, and associated therapeutics, discovered in canines, may translate to human medicine.
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Affiliation(s)
- Gregory J. Tawa
- National Institutes of Health, National Center for Advancing Translational Sciences, Division of Preclinical Innovation, Therapeutic Development Branch, Rockville, Maryland, United States of America
| | - John Braisted
- National Institutes of Health, National Center for Advancing Translational Sciences, Division of Preclinical Innovation, Therapeutic Development Branch, Rockville, Maryland, United States of America
| | - David Gerhold
- National Institutes of Health, National Center for Advancing Translational Sciences, Division of Preclinical Innovation, Therapeutic Development Branch, Rockville, Maryland, United States of America
| | - Gurmit Grewal
- National Institutes of Health, National Center for Advancing Translational Sciences, Division of Preclinical Innovation, Therapeutic Development Branch, Rockville, Maryland, United States of America
| | - Christina Mazcko
- National Institutes of Health, National Cancer Institute, Center for Cancer Research, Comparative Oncology Program, Bethesda, Maryland, United States of America
| | - Matthew Breen
- Department of Molecular Biomedical Sciences, North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, United States of America
| | - Gurusingham Sittampalam
- National Institutes of Health, National Center for Advancing Translational Sciences, Division of Preclinical Innovation, Therapeutic Development Branch, Rockville, Maryland, United States of America
| | - Amy K. LeBlanc
- National Institutes of Health, National Cancer Institute, Center for Cancer Research, Comparative Oncology Program, Bethesda, Maryland, United States of America
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Dolan C, Miller T, Jill J, Terrell J, Kelly TK, Bygott T, Wilson-Robles H. Characterizing circulating nucleosomes in the plasma of dogs with lymphoma. BMC Vet Res 2021; 17:276. [PMID: 34399763 PMCID: PMC8365961 DOI: 10.1186/s12917-021-02991-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 07/21/2021] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Nucleosomes consist of DNA wrapped around a histone octamer core like beads on a string so that DNA can be condensed as chromatin into chromosomes. Diseases such as cancer or inflammation lead to cell death where chromatin is fragmentated and released as mononucleosomes into the blood. The Nu.Q™ H3.1 assay measures total nucleosome concentration in plasma of humans and has been used to detect and identify cancer even at early stages. The objectives of this study were to determine if nucleosome levels could be used to distinguish between healthy dogs and dogs with various stages of lymphoma (LSA) using the Nu.Q™ H3.1 assay. A total of 126 dogs diagnosed with LSA and 134 healthy controls were recruited for this study. Plasma was collected from each dog and stored in K2-EDTA tubes. The LSA patient samples were recruited from TAMU or purchased from various biobanks. All control cases were recruited from TAMU. RESULTS Dogs with LSA had an approximately 7-fold increase in their plasma nucleosome concentrations compared to controls (AUC 87.8%). Nucleosome concentrations increased with cancer stage and dogs with B cell lymphomas had significantly higher nucleosome concentrations than dogs with T cell lymphomas. CONCLUSIONS The Nu.Q™ H3.1 assay was able to reliably detect elevated nucleosome concentrations in the plasma of dogs with LSA. Furthermore, it appears that nucleosomes are useful for differentiating cancer from healthy individuals in canines.
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Affiliation(s)
- Christopher Dolan
- Small Animal Clinical Sciences Department, Texas A&M University, College of Veterinary Medicine, College Station, TX, 77843, USA.
| | - Tasha Miller
- Small Animal Clinical Sciences Department, Texas A&M University, College of Veterinary Medicine, College Station, TX, 77843, USA
| | - Jarvis Jill
- Small Animal Clinical Sciences Department, Texas A&M University, College of Veterinary Medicine, College Station, TX, 77843, USA
| | - Jason Terrell
- Volition America LLC, 13215 Bee Cave Parkway, Galleria Oaks B, Suite 125, Austin, TX, 78738, USA
| | - Theresa Kathleen Kelly
- Volition America LLC, 13215 Bee Cave Parkway, Galleria Oaks B, Suite 125, Austin, TX, 78738, USA
| | - Thomas Bygott
- Volition Diagnostics UK Ltd, 93-95 Gloucester Place, London, W1U 6JQ, UK
| | - Heather Wilson-Robles
- Small Animal Clinical Sciences Department, Texas A&M University, College of Veterinary Medicine, College Station, TX, 77843, USA
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Krol L, Vernau W, Mutlow AG, Brady SM, Wack RF, Kubly S, Zwingenberger AL, Culp WTN, Palm C, Rebhun RB. Unusual splenic B-cell lymphoma in two related Sumatran tigers ( Panthera tigris sumatrae). J Am Vet Med Assoc 2021; 257:1288-1293. [PMID: 33269968 DOI: 10.2460/javma.257.12.1288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
CASE DESCRIPTION A 14-year-old 120-kg (264-lb) sexually intact male Sumatran tiger (Panthera tigris sumatrae) and its 10-year-old 130-kg (286-lb) sexually intact male offspring were housed separately and evaluated independently after experiencing weeks of ongoing malaise, weight loss, and anorexia. CLINICAL FINDINGS Both animals were immobilized and anesthetized for physical examinations and diagnostic testing. Complete blood counts revealed leukopenia and anemia in both tigers. Splenomegaly was identified on abdominal ultrasonography. Cytologic examination and immunohistochemical staining of splenic samples confirmed intermediate to large B-cell lymphoma; no evidence of lymphoma in surrounding organs was noted. TREATMENT AND OUTCOME The sire was treated with lomustine and prednisolone. This tiger was euthanized 21 months after initiation of treatment because of chronic progressive renal disease. The male offspring was treated with l-asparaginase but did not respond to the treatment. A splenectomy was performed, and malaise and anorexia resolved. No further chemotherapy was administered, and the male offspring was instead maintained on a low dose of prednisolone. Thirty-two months after diagnosis, the male offspring was still considered to be in remission. CLINICAL RELEVANCE To our knowledge, this was the first known report of the diagnosis and management of a splenic B-cell lymphoma in a tiger. Both tigers achieved positive clinical responses and long-term survival by means of different treatment modalities. The finding of such an unusual neoplasm in a male tiger and its male offspring was noteworthy, raising the possibility of a genetic predisposition for this lymphoma type.
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Klaus J, Palizzotto C, Zini E, Meli ML, Leo C, Egberink H, Zhao S, Hofmann-Lehmann R. SARS-CoV-2 Infection and Antibody Response in a Symptomatic Cat from Italy with Intestinal B-Cell Lymphoma. Viruses 2021; 13:527. [PMID: 33806922 PMCID: PMC8004793 DOI: 10.3390/v13030527] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/18/2021] [Accepted: 03/18/2021] [Indexed: 02/06/2023] Open
Abstract
Since the coronavirus disease (COVID-19) pandemic was first identified in early 2020, rare cases of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection in pet cats have been reported worldwide. Some reports of cats with SARS-CoV-2 showed self-limiting respiratory or gastrointestinal disease after suspected human-to-feline transmission via close contact with humans with SARS-CoV-2. In the present study, we investigated a cat with SARS-CoV-2 that was presented to a private animal clinic in Northern Italy in May 2020 in a weak clinical condition due to an underlying intestinal B-cell lymphoma. The cat developed signs of respiratory tract disease, including a sneeze, a cough and ocular discharge, three days after an oropharyngeal swab tested positive for SARS-CoV-2 viral RNA using two real-time reverse transcriptase polymerase chain reaction (RT-qPCR) assays for the envelope (E) and RNA-dependent RNA polymerase (RdRp) gene. Thus, SARS-CoV-2 viral RNA was detectable prior to the onset of clinical signs. Five and six months after positive molecular results, the serological testing substantiated the presence of a SARS-CoV-2 infection in the cat with the detection of anti-SARS-CoV-2 receptor binding domain (RBD) immunoglobulin (IgG) antibodies and neutralizing activity in a surrogate virus neutralization assay (sVNT). To the best of our knowledge, this extends the known duration of seropositivity of SARS-CoV-2 in a cat. Our study provides further evidence that cats are susceptible to SARS-CoV-2 under natural conditions and strengthens the assumption that comorbidities may play a role in the development of clinical disease.
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Affiliation(s)
- Julia Klaus
- Clinical Laboratory, Department of Clinical Diagnostics and Services, and Center for Clinical Studies, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland; (M.L.M.); (R.H.-L.)
| | - Carlo Palizzotto
- AniCura Istituto Veterinario Novara, Strada Provinciale 9, 28060 Granozzo con Monticello, Novara, Italy; (E.Z.); (C.L.)
| | - Eric Zini
- AniCura Istituto Veterinario Novara, Strada Provinciale 9, 28060 Granozzo con Monticello, Novara, Italy; (E.Z.); (C.L.)
- Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland
- Department of Animal Medicine, Production and Health, University of Padova, Viale dell’Università 16, 35020 Legnaro, Padova, Italy
| | - Marina L. Meli
- Clinical Laboratory, Department of Clinical Diagnostics and Services, and Center for Clinical Studies, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland; (M.L.M.); (R.H.-L.)
| | - Chiara Leo
- AniCura Istituto Veterinario Novara, Strada Provinciale 9, 28060 Granozzo con Monticello, Novara, Italy; (E.Z.); (C.L.)
| | - Herman Egberink
- Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, University of Utrecht, 3584 CL Utrecht, The Netherlands; (H.E.); (S.Z.)
| | - Shan Zhao
- Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, University of Utrecht, 3584 CL Utrecht, The Netherlands; (H.E.); (S.Z.)
| | - Regina Hofmann-Lehmann
- Clinical Laboratory, Department of Clinical Diagnostics and Services, and Center for Clinical Studies, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 260, 8057 Zurich, Switzerland; (M.L.M.); (R.H.-L.)
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12
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Wu TK, Kirejczyk SGM, Howerth EW. Pathology in Practice. J Am Vet Med Assoc 2020; 256:319-321. [PMID: 31961272 DOI: 10.2460/javma.256.3.319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Chen W, Liu I, Tomiyasu H, Lee J, Cheng C, Liao AT, Liu B, Liu C, Lin C. Imatinib enhances the anti-tumour effect of doxorubicin in canine B-cell lymphoma cell line. Vet J 2019; 254:105398. [PMID: 31836165 DOI: 10.1016/j.tvjl.2019.105398] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 10/03/2019] [Accepted: 10/19/2019] [Indexed: 01/24/2023]
Abstract
Canine lymphoma is one of the most common malignant tumours occurring in dogs and has a high incidence worldwide. Despite advances in cancer prevention, the treatment of neoplastic diseases still requires improvement. Some cancer cells may resist the effect of chemotherapeutic agents by up-regulating drug transporters leading to increased drug efflux, resulting in intrinsic or acquired drug resistance, which is a mechanism commonly seen in doxorubicin-resistant tumour cells. In this study, canine B-cell lymphoma cell line CLBL1-8.0, a doxorubicin-resistant B cell lymphoma cell line derived from CLBL-1 by increasing the doxorubicin concentration during culturing, exhibited high expression of P-glycoprotein (P-gp, ATP-binding cassette sub-family B member 1 [ABCB1]). These proteins are commonly involved in cancer cell resistance to doxorubicin. Imatinib, a tyrosine kinase inhibitor significantly potentiated the sensitivity of doxorubicin in P-gp-overexpressing doxorubicin-resistant cells. Moreover, a combination of these two drugs may increase the retention of doxorubicin by decreasing the efflux of doxorubicin without affecting P-gp protein overexpression. In conclusion, imatinib reversed doxorubicin resistance by decreasing drug efflux in P-gp-overexpressing doxorubicin-resistant canine lymphoma cells. These results suggest that combining doxorubicin, one of the most widely used chemotherapeutic drugs in the treatment of canine lymphoma, with imatinib might potentially overcome doxorubicin resistance in a clinical setting.
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Affiliation(s)
- W Chen
- Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, 1 Sec 4 Roosevelt Road, Taipei, 10617, Taiwan
| | - I Liu
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, 1 Sec 4 Roosevelt Road, Taipei, 10617, Taiwan
| | - H Tomiyasu
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - J Lee
- Graduate Institute of Veterinary Clinical Science, School of Veterinary Medicine, National Taiwan University, 1 Sec 4 Roosevelt Road, Taipei, 10617, Taiwan
| | - C Cheng
- Institute of Molecular and Comparative Pathobiology, School of Veterinary Medicine, National Taiwan University, 1 Sec 4 Roosevelt Road, Taipei, 10617, Taiwan
| | - A T Liao
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, 1 Sec 4 Roosevelt Road, Taipei, 10617, Taiwan
| | - B Liu
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, 1 Sec 4 Roosevelt Road, Taipei, 10617, Taiwan
| | - C Liu
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, 1 Sec 4 Roosevelt Road, Taipei, 10617, Taiwan
| | - C Lin
- Department of Veterinary Medicine, School of Veterinary Medicine, National Taiwan University, 1 Sec 4 Roosevelt Road, Taipei, 10617, Taiwan.
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14
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Torrent A, Kilcoyne I, Johnson A, Affolter VK, Berryhill E, Aleman M. An atypical presentation of multi-systemic B-cell lymphoma in a horse. Can Vet J 2019; 60:300-304. [PMID: 30872854 PMCID: PMC6380265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
This report describes an unusual presentation of multicentric B-cell lymphoma with central and peripheral nerve involvement in a horse that was presented with acute onset, severe, multiple limb lameness, and muscle atrophy. This case highlights the importance of including neoplasia in the differential list in horses presenting for severe limb lameness associated with muscle atrophy, muscle fasciculations, and weakness.
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Affiliation(s)
- Albert Torrent
- The William R. Pritchard Veterinary Medical Teaching Hospital (Torrent, Johnson, Berryhill), Department of Surgical and Radiological Sciences (Kilcoyne), Pathology, Microbiology & Immunology (Affolter), and Department of Medicine and Epidemiology (Aleman), School of Veterinary Medicine, University of California-Davis, Davis, California 95616, USA
| | - Isabelle Kilcoyne
- The William R. Pritchard Veterinary Medical Teaching Hospital (Torrent, Johnson, Berryhill), Department of Surgical and Radiological Sciences (Kilcoyne), Pathology, Microbiology & Immunology (Affolter), and Department of Medicine and Epidemiology (Aleman), School of Veterinary Medicine, University of California-Davis, Davis, California 95616, USA
| | - Amanda Johnson
- The William R. Pritchard Veterinary Medical Teaching Hospital (Torrent, Johnson, Berryhill), Department of Surgical and Radiological Sciences (Kilcoyne), Pathology, Microbiology & Immunology (Affolter), and Department of Medicine and Epidemiology (Aleman), School of Veterinary Medicine, University of California-Davis, Davis, California 95616, USA
| | - Verena K Affolter
- The William R. Pritchard Veterinary Medical Teaching Hospital (Torrent, Johnson, Berryhill), Department of Surgical and Radiological Sciences (Kilcoyne), Pathology, Microbiology & Immunology (Affolter), and Department of Medicine and Epidemiology (Aleman), School of Veterinary Medicine, University of California-Davis, Davis, California 95616, USA
| | - Emily Berryhill
- The William R. Pritchard Veterinary Medical Teaching Hospital (Torrent, Johnson, Berryhill), Department of Surgical and Radiological Sciences (Kilcoyne), Pathology, Microbiology & Immunology (Affolter), and Department of Medicine and Epidemiology (Aleman), School of Veterinary Medicine, University of California-Davis, Davis, California 95616, USA
| | - Monica Aleman
- The William R. Pritchard Veterinary Medical Teaching Hospital (Torrent, Johnson, Berryhill), Department of Surgical and Radiological Sciences (Kilcoyne), Pathology, Microbiology & Immunology (Affolter), and Department of Medicine and Epidemiology (Aleman), School of Veterinary Medicine, University of California-Davis, Davis, California 95616, USA
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15
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Motegi T, Tomiyasu H, Goto-Koshino Y, Takahashi M, Hiyoshi-Kanemoto S, Fujino Y, Ohno K, Tsuimoto H. Prognostic value of CD44 variant isoform expression in dogs with multicentric high-grade B-cell lymphoma. Am J Vet Res 2018; 79:961-969. [PMID: 30153061 DOI: 10.2460/ajvr.79.9.961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine the prognostic value of CD44 variant isoform expression in dogs with multicentric high-grade B-cell lymphoma (BCL). ANIMALS 45 dogs with multicentric BCL and 10 healthy control Beagles. PROCEDURES The medical record database of a veterinary teaching hospital was searched to identify dogs with BCL that were treated between November 2005 and April 2015. Information regarding overall response to chemotherapy, progression-free survival (PFS) time, and overall survival time was extracted from each record. Archived lymph node aspirate specimens from dogs with BCL and lymph node aspirate specimens from the 10 control dogs underwent real-time PCR analysis to determine mRNA expression of CD44 variant isoforms of exons 3, 6, and 7 and the CD44 whole isoform. For each isoform, mRNA expression was compared between dogs with BCL and control dogs. The mean relative expression of each isoform was used to classify dogs with BCL into either a high- or low-expression group, and overall response rate, PFS time, and overall survival time (ie, indices of prognosis) were compared between the 2 groups. RESULTS For all isoforms evaluated, mean relative mRNA expression for dogs with BCL was numerically lower than that for control dogs. Dogs with BCL and high CD44 isoform expression had a lower overall response rate, median PFS time, and median overall survival time, compared with dogs with BCL and low CD44 isoform expression. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that, for dogs with BCL, high expression of exons 3, 6, and 7 was associated with a poor prognosis.
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16
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Tagawa M, Kurashima C, Takagi S, Maekawa N, Konnai S, Shimbo G, Matsumoto K, Inokuma H, Kawamoto K, Miyahara K. Evaluation of costimulatory molecules in dogs with B cell high grade lymphoma. PLoS One 2018; 13:e0201222. [PMID: 30040869 PMCID: PMC6057677 DOI: 10.1371/journal.pone.0201222] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 07/11/2018] [Indexed: 12/21/2022] Open
Abstract
B cell high grade lymphoma is the most common hematopoietic malignancy in dogs. Although the immune checkpoint molecules, programmed death-1 (PD-1) and cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4), and immune checkpoint inhibitors have been evaluated for the treatment of various human lymphoid malignancies, the expression of those molecules and their relationship with prognosis remain unknown in canine lymphoma. The objective of this study was to evaluate the expression of costimulatory molecules on peripheral blood lymphocytes and tumor infiltrating lymphocytes, in addition to associated ligand expression in the lymph nodes of patients with B cell multicentric high grade lymphoma. Eighteen patients diagnosed with B cell high grade lymphoma and nine healthy control dogs were enrolled. Flow cytometric analysis revealed that the expression of PD-1 on CD4+ peripheral and tumor infiltrating lymphocytes and CTLA-4 on CD4+ peripheral lymphocytes was significantly higher in the lymphoma group than in the control group. The expression level of CD80 mRNA was significantly lower in the lymphoma group than in the control group. In contrast, there were no significant differences in PD-L1, PD-L2, and CD86 expression between the groups. Dogs with CTLA-4 levels below the cutoff values, which were determined based on receiver operating characteristic curves, on peripheral CD4+, CD8+, and tumor infiltrating CD4+ lymphocytes had significantly longer survival than dogs with values above the cutoff. Although it is uncertain whether the expression of immune checkpoint molecules affect the biological behavior of canine lymphoma, one possible explanation is that PD-1 and CTLA-4 might be associated with the suppression of antitumor immunity in dogs with B cell high grade lymphoma, particularly through CD4+ T cells.
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Affiliation(s)
- Michihito Tagawa
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
- * E-mail:
| | - Chihiro Kurashima
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Satoshi Takagi
- Department of Veterinary Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Veterinary Teaching Hospital, Sapporo, Hokkaido, Japan
| | - Naoya Maekawa
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Satoru Konnai
- Department of Disease Control, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Genya Shimbo
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Kotaro Matsumoto
- Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Hisashi Inokuma
- Department of Clinical Veterinary Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Keiko Kawamoto
- Research Center for Global Agromedicine, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Kazuro Miyahara
- Veterinary Medical Center, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
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Witt S, Willeke K, Köhler K, Bauer N. [Non-epitheliotropic B-cell lymphoma with atypical spindle cell morphology in a Weimaraner dog]. Tierarztl Prax Ausg K Kleintiere Heimtiere 2018; 46:119-125. [PMID: 29727899 DOI: 10.15654/tpk-170254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The case report describes a very rare cutaneous non-epitheliotropic B-cell lymphoma in an 11-year-old male Weimaraner dog, which presented with multiple cutaneous proliferations. In addition to numerous cytoplasmic fragments of lymphatic cells, the cytological examination of a fine-needle aspirate taken from a skin nodule revealed a population of pleomorphic plump to spindle-shaped cells with round to oval nuclei, fine chromatin structure, moderate amounts of a lightly basophilic cytoplasm and predominantly indistinct cell boundaries. These findings suggested a possible cutaneous spindle-cell lymphoma, thus a biopsy was taken. In the histopathological examination, the cells displayed no epitheliotropism and immunohistochemically they were positive for multiple B-cell markers. In addition to the rarity of cutaneous non-epitheliotropic B-cell lymphomas per se, the special feature of this case is the atypical spindle-cell morphology of the lymphatic cells. A spindle-cell variant of cutaneous B-cell lymphoma has to date only been described in human medicine.
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18
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Visser M, Walz H, Shrader S, Koehler J, Bellah J. Central Nervous System B-cell Lymphoma in a Bald Eagle ( Haliaeetus leucocephalus). J Avian Med Surg 2018; 32:40-44. [PMID: 29698076 DOI: 10.1647/2016-188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
An adult bald eagle ( Haliaeetus leucocephalus) presented for nystagmus and an inability to fly. On physical examination, the eagle was open-mouth breathing and tachycardic at 200 beats per minute, had a wrinkled cere and sunken eyes, and was an estimated 10% dehydrated. Additionally, the eagle was extremely weak, with neurologic abnormalities including bilateral proprioceptive deficits, nystagmus, and no pupillary light reflex in the left eye. Despite aggressive treatment, the eagle continued to decline rapidly and subsequently died. On histologic examination, diffuse and widespread infiltration of neoplastic lymphocytes was present in the brain, optic nerves, and pecten. Immunohistochemical PAX-5 labeling confirmed B-cell lymphoma confined to the eye and nervous system. Test results for select avian retroviruses, Marek's disease, West Nile virus, avian influenza viruses, and Mycoplasma were negative. To our knowledge, this is the first report of B-cell lymphoma in a bald eagle. Although rare, this condition is a differential diagnosis in cases of neurologic or ocular diseases in birds.
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Le K, Beaufrère H, Brouwer E, Bland SK, Wills S, MacKenzie S, Chalmers H, Pinard C, Wood RD, DeLay J, Smith DA. Retro-orbital and disseminated B-cell lymphoma in a yellow-collared macaw (Primolius auricollis). Can Vet J 2017; 58:707-712. [PMID: 28698688 PMCID: PMC5479663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A yellow-collared macaw was presented with unilateral left exophthalmia. The complete blood cell count and biochemistry revealed a heterophilic leukocytosis and elevation in liver parameters, respectively. A computed tomography scan showed a contrast-enhancing retrobulbar mass and hepatomegaly. Cytology of the liver was consistent with a round cell tumor, most likely lymphoma. The bird died after 2 months of palliative care. Postmortem examination confirmed a retro-orbital and disseminated B-cell lymphoma.
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Abstract
A newborn Holstein female calf had neoplastic lesions in the skin and within the thoracic and abdominal cavities but not in the bone marrow, spleen, thymus, or most lymph nodes. Because the tumor cells were positive for CD79a (B cell marker), CD5 (B-1 cell marker) and terminal deoxynucleotidyl transferase (marker for immature lymphoid precursors), a diagnosis of precursor B-1 B cell lymphoma was made. The diagnosis was strongly supported by the fact that B-1 cells can develop in the fetus, unlike B-2 cells, which are produced after birth. The lymphoma was distinct from the typical calf form of lymphoma of B-2 cell origin, which does not express CD5 and is characterized by generalized lymphadenopathy and involvement of the bone marrow, blood and spleen.
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Affiliation(s)
- Shinji Yamamoto
- Oshima Livestock Hygiene Service Center, Nishikikyo, Hakodate, Japan
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21
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Reyes NL, Treuting PM, Vogel P, Rehg J, Snyder JM. Pathology in Practice. J Am Vet Med Assoc 2016; 249:381-4. [PMID: 27479281 DOI: 10.2460/javma.249.4.381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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22
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Werner JA, Woo JC, Vernau W, Graham PS, Grahn RA, Lyons LA, Moore PF. Characterization of Feline Immunoglobulin Heavy Chain Variable Region Genes for the Molecular Diagnosis of B-cell Neoplasia. Vet Pathol 2016; 42:596-607. [PMID: 16145206 DOI: 10.1354/vp.42-5-596] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
To develop a molecular-based assay so that the diagnosis of feline B-cell neoplasia can be facilitated, we have characterized 24 feline immunoglobulin heavy chain variable region ( IGH V) complementary DNA (cDNA) transcripts. Structural homology with rearranged human IGH V genes was found, and the sequence information was used to design a feline-specific polymerase chain reaction (PCR)-based assay to amplify the complementarity determining region 3 as a marker for B-cell clonality. Conserved primers derived from the second and third framework regions of V gene segments were used in conjunction with 2 sequence-specific primers and 1 degenerate primer derived from the J gene segments. Each PCR reaction was run in duplicate, and both native and denatured PCR products were evaluated using polyacrylamide gel electrophoresis. Formalin-fixed, paraffin-embedded (FFPE) tissue sections from cats with confirmed B-cell neoplasia (diffuse large B-cell lymphoma, plasmacytoma, and myeloma) were examined, and 15/22 (68.2%) cats produced results indicative of the presence of a monoclonal population of B cells. The evaluation of denatured PCR products (heteroduplex analysis) facilitated a more accurate interpretation in 3/15 (20%) cats. Pseudoclonality was a major reason for the failure to detect monoclonality. Poor DNA quality is a significant concern and was responsible for the removal of 2 cats from the study. Using this assay, FFPE normal feline lymphoid tissues and unfixed peripheral blood mononuclear cells were determined to be composed of polyclonal populations of B cells. This assay represents a useful adjunctive diagnostic tool for the diagnosis and investigation of feline B-cell lymphoproliferative disorders.
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Affiliation(s)
- J A Werner
- Department of Veterinary, Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
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Sözmen M, Tasca S, Carli E, De Lorenzi D, Furlanello T, Caldin M. Use of Fine Needle Aspirates and Flow Cytometry for the Diagnosis, Classification, and Immunophenotyping of Canine Lymphomas. J Vet Diagn Invest 2016; 17:323-30. [PMID: 16130989 DOI: 10.1177/104063870501700404] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Fifty canine lymphomas were classified cytomorphologically using the updated Kiel classification scheme. Aspirates of lymph nodes from dogs with lymphoma were stained using 5 canine-specific antibodies and 3 human-specific antibodies that cross-react with canine lymphocytes. The antibody-stained aspirates were analyzed by flow cytometry. A total of 32 (64%) of the 50 lymphomas were characterized as B-cell origin and 18 (36%) were of T-cell origin. B-cell lymphomas were identified in 12 females and 20 males with a mean age of 8.35 years. T-cell lymphomas were identified in 8 females and 10 males with a mean age of 7.9 years. A minority of the lymphomas were low-grade B-cell and T-cell lymphomas (6/50, 12% and 4/50, 8%, respectively). The most common morphologic types were high-grade centroblastic and unclassifiable plasmacytoid for B- and T-cell lymphomas (18/50, 36% and 7/50, 14%, respectively).
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Affiliation(s)
- Mahmut Sözmen
- Department of Pathology, Faculty of Veterinary Medicine, University of Kafkas, Pasacayiri, Kars 36100, Turkey
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24
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Duran MC, Starrak G, Dickinson R, Montgomery J. Peritoneal fluid immunocytochemistry used for the diagnosis of a possible case of equine gastrointestinal B-cell lymphoma. Can Vet J 2016; 57:601-604. [PMID: 27247458 PMCID: PMC4866663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
After physical examination, ultrasonographic evaluation of thorax and abdomen, and peritoneal fluid analysis, gastrointestinal neoplasia with suspected diffuse peritoneal metastasis was diagnosed in a 17-year-old Arabian gelding. The owner elected euthanasia and declined postmortem examination. Immunocytochemistry analysis of the peritoneal fluid resulted in a diagnosis of B-cell lymphoma.
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25
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Liu W, Selçuk F, Rütgen BC, Moulay M, Willenbrock S, Hammer SE, Sterenczak KA, Junghanss C, Hewicker-Trautwein M, Nolte I, Murua Escobar H. Evaluation of Stem Cell Marker Expression in Canine B-Cell Lymphoma Cell Lines, B-Cell Lymphoma-generated Spheres and Primary Samples. Anticancer Res 2015; 35:2805-2816. [PMID: 25964560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND Canine lymphoma has lately drawn focus as a model of human non-Hodgkin's lymphoma due to its spontaneous occurrence and similar biological behavior. Cells with stem cell-like characteristics are believed to play a key role in therapeutic failure. Thus, an initial characterization and the possibility of specific detection of such cells could bear significant value. MATERIALS AND METHODS Expression of 12 stem cell markers were analyzed in two canine B-cell lymphoma cell lines, their generated spheres, and in primary lymphoma samples by quantitative real-time polymerase chain reaction and partially by flow cytometry and immunocytochemistry. RESULTS Expression of maternal embryonic leucine zipper kinase (Melk) was significantly higher in CLBL-1, CLBL-1M and in primary B-cell lymphoma samples compared to non-neoplastic lymph nodes. Spheres displayed a higher expression of v-myc myelocytomatosis viral oncogene homolog (Myc) and lower expression of Cd44 compared to original cell lines and primary B-cell lymphoma samples. CONCLUSION The results suggest a potential interesting role of Melk in canine B-cell lymphoma. Furthermore, the up-regulation of Myc in serum-free-generated spheres offers interesting possibilities for functional assays characterizing the specific generated sub-population.
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Affiliation(s)
- Wen Liu
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany Division of Medicine, Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, Rostock, Germany
| | - Feyza Selçuk
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Barbara C Rütgen
- Clinical Pathology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Mohammed Moulay
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Saskia Willenbrock
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Sabine E Hammer
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | | | - Christian Junghanss
- Division of Medicine, Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, Rostock, Germany
| | | | - Ingo Nolte
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Hugo Murua Escobar
- Small Animal Clinic, University of Veterinary Medicine Hannover, Hannover, Germany Division of Medicine, Clinic III, Hematology, Oncology and Palliative Medicine, University of Rostock, Rostock, Germany
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26
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Sato M, Mochizuki H, Goto-Koshino Y, Fujiwara-Igarashi A, Takahashi M, Fujino Y, Ohno K, Tsujimoto H. Hypermethylation of the death-associated protein kinase CpG island in canine B-cell lymphoid tumors. Vet Immunol Immunopathol 2014; 161:222-31. [PMID: 25193469 DOI: 10.1016/j.vetimm.2014.08.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 08/08/2014] [Accepted: 08/14/2014] [Indexed: 11/15/2022]
Abstract
Death-associated protein kinase (DAPK) is a 160-kD serine/threonine kinase known as a key molecule in interferon-γ (IFN-γ)-induced apoptosis and tumor suppression. Hypermethylation of the CpG island in DAPK inactivates the gene in a variety of human malignancies. This study aimed to detect the inactivation of DAPK in canine lymphoid tumor cells. The sequence of canine DAPK cDNA was obtained from normal dog peripheral blood mononuclear cells after reverse transcription polymerase chain reaction (RT-PCR). By rapid amplification of 5'-cDNA ends, the transcription initiation site of the DAPK gene was identified. The CpG island located upstream of the translation initiation site was identified by using a search algorithm. The methylation status of the CpG island was examined using bisulfite sequence analysis and methylation-specific PCR (MSP). The inactivation of DAPK gene was examined in 3 canine lymphoid tumor cell lines, GL-1 (B-cell leukemia), CLBL-1 (B-cell lymphoma), and CL-1 (T-cell lymphoma). DAPK mRNA expression was measured by real-time RT-PCR. IFN-γ-induced apoptosis was detected by terminal deoxynucleotidyl transferase dUTP nick end labelling (TUNEL) assay. The influence of demethylation was examined with 5-aza-2'-deoxycytidine (5-aza-dC). The methylation status in 14 dogs with various lymphoid tumors was screened by MSP. A 1926-bp CpG island containing 280 CpG repeats was identified upstream of the translation start site of canine DAPK. Bisulfate sequence analysis and MSP revealed hypermethylation of the CpG island in GL-1 cells, but not in CLBL-1 or CL-1 cells. The amount of DAPK mRNA was significantly smaller in GL-1 cells than CLBL-1 and CL-1 cells. IFN-γ-induced apoptosis was detected in CLBL-1 and CL-1 cells but not in GL-1 cells. Treatment with 5-aza-dC significantly increased the amount of DAPK mRNA and IFN-γ-induced apoptosis in GL-1 cells. These results revealed the inactivation of DAPK through methylation of its CpG island in GL-1 cells. MSP showed hypermethylation of the DAPK CpG island in 5 of 8 primary B-cell lymphoma samples, but not in any of the 6 primary T-cell lymphoid tumor samples obtained from canine patients. DAPK was inactivated through hypermethylation of its CpG island in canine B-cell lymphoid tumor cells. This study will lead to the use of canine B-cell lymphoid tumors as an animal model to evaluate the efficacy of demethylating agents.
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Affiliation(s)
- Masahiko Sato
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hiroyuki Mochizuki
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Yuko Goto-Koshino
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Aki Fujiwara-Igarashi
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Masashi Takahashi
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Yasuhito Fujino
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Koichi Ohno
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Hajime Tsujimoto
- Department of Veterinary Internal Medicine, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
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27
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Pinheiro D, Chang YM, Bryant H, Szladovits B, Dalessandri T, Davison LJ, Yallop E, Mills E, Leo C, Lara A, Stell A, Polton G, Garden OA. Dissecting the regulatory microenvironment of a large animal model of non-Hodgkin lymphoma: evidence of a negative prognostic impact of FOXP3+ T cells in canine B cell lymphoma. PLoS One 2014; 9:e105027. [PMID: 25119018 PMCID: PMC4132014 DOI: 10.1371/journal.pone.0105027] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 07/19/2014] [Indexed: 02/06/2023] Open
Abstract
The cancer microenvironment plays a pivotal role in oncogenesis, containing a number of regulatory cells that attenuate the anti-neoplastic immune response. While the negative prognostic impact of regulatory T cells (Tregs) in the context of most solid tissue tumors is well established, their role in lymphoid malignancies remains unclear. T cells expressing FOXP3 and Helios were documented in the fine needle aspirates of affected lymph nodes of dogs with spontaneous multicentric B cell lymphoma (BCL), proposed to be a model for human non-Hodgkin lymphoma. Multivariable analysis revealed that the frequency of lymph node FOXP3+ T cells was an independent negative prognostic factor, impacting both progression-free survival (hazard ratio 1.10; p = 0.01) and overall survival (hazard ratio 1.61; p = 0.01) when comparing dogs showing higher than the median FOXP3 expression with those showing the median value of FOXP3 expression or less. Taken together, these data suggest the existence of a population of Tregs operational in canine multicentric BCL that resembles thymic Tregs, which we speculate are co-opted by the tumor from the periphery. We suggest that canine multicentric BCL represents a robust large animal model of human diffuse large BCL, showing clinical, cytological and immunophenotypic similarities with the disease in man, allowing comparative studies of immunoregulatory mechanisms.
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Affiliation(s)
- Dammy Pinheiro
- Department of Clinical Sciences and Services, Immune Regulation Laboratory, The Royal Veterinary College, London, United Kingdom
| | - Yu-Mei Chang
- Research Office, The Royal Veterinary College, London, United Kingdom
| | - Hannah Bryant
- Department of Clinical Sciences and Services, Immune Regulation Laboratory, The Royal Veterinary College, London, United Kingdom
| | - Balazs Szladovits
- Department of Pathology and Pathogen Biology, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Tim Dalessandri
- Department of Clinical Sciences and Services, Immune Regulation Laboratory, The Royal Veterinary College, London, United Kingdom
| | - Lucy J. Davison
- Henry Wellcome Building, Centre for Cellular and Molecular Physiology, University of Oxford, Oxford, United Kingdom
- Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Elizabeth Yallop
- Clinical Investigation Centre, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Emily Mills
- Clinical Investigation Centre, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Chiara Leo
- Department of Clinical Sciences and Services, Queen Mother Hospital for Animals, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Ana Lara
- Department of Clinical Sciences and Services, Queen Mother Hospital for Animals, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Anneliese Stell
- Department of Clinical Sciences and Services, Queen Mother Hospital for Animals, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
| | - Gerry Polton
- Oncology Service, North Downs Specialist Referrals, Bletchingley, Surrey, United Kingdom
| | - Oliver A. Garden
- Department of Clinical Sciences and Services, Immune Regulation Laboratory, The Royal Veterinary College, London, United Kingdom
- Department of Clinical Sciences and Services, Queen Mother Hospital for Animals, The Royal Veterinary College, Hatfield, Hertfordshire, United Kingdom
- * E-mail:
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28
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Westerman TL, Poulsen KP, Schlipf JW, Valentine BA. Neurotropic T-cell-rich B-cell lymphoma in a 14-year-old Morgan gelding. Can Vet J 2014; 55:379-382. [PMID: 24688140 PMCID: PMC3953942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A 14-year-old Morgan gelding was presented for progressive weakness and muscle atrophy. The horse was initially diagnosed with equine protozoal myelitis based on history, physical examination, and laboratory diagnostics. Despite therapy, the horse declined clinically and was euthanized. Necropsy revealed a rare form of neurotropic lymphoma, described in this report.
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29
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Lardé H, Nichols S, Babkine M, Chénier S. Laryngeal obstruction caused by lymphoma in an adult dairy cow. Can Vet J 2014; 55:136-140. [PMID: 24489391 PMCID: PMC3894870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A Holstein cow was presented for inspiratory dyspnea. Endoscopic evaluation revealed swollen arytenoids and a presumptive diagnosis of bilateral arytenoidal chondritis was made. A partial arytenoidectomy was performed, the right arytenoid was submitted for histopathology, and a diagnosis of laryngeal lymphoma was made. Due to the poor prognosis, the cow was euthanized.
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30
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de Mello Souza CH, Valli VE, Kitchell BE. Detection of retinoid receptors in non-neoplastic canine lymph nodes and in lymphoma. Can Vet J 2014; 55:1219-1224. [PMID: 24381339 PMCID: PMC3866851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This study evaluated the difference in retinoid receptor expression between non-neoplastic lymph nodes and nodal lymphoma in dogs. Retinoid receptor expression was evaluated by immunohistochemistry in 32 canine lymph nodes. The lymph nodes had been previously diagnosed as non-neoplastic (6 normal and 7 hyperplastic lymph nodes) and B- and T-cell lymphoma (19 cases). Immunohistochemistry for retinoic acid receptors and retinoid-X receptors (and their subtypes α, β, and γ) was performed in all cases. In addition, immunohistochemistry for CD3 and CD79a was performed in all lymphoma cases. Non-neoplastic lymphocytes were negative for all retinoid receptors. Retinoic acid receptor-γ was detected in 100% of B-cell lymphoma and 78% of T-cell lymphoma, while retinoid X receptor-γ was positive in 78% of T-cell lymphoma cases. When normal lymph node architecture was still present, a contrast between retinoid-negative benign cells and retinoid-positive malignant cells was clear. Retinoid receptors were expressed in neoplastic, but not in benign lymphocytes, suggesting their value for both diagnosis and treatment of canine lymphoma.
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31
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Giantin M, Aresu L, Aricò A, Gelain ME, Riondato F, Comazzi S, Dacasto M. Evaluation of tyrosine-kinase receptor c-kit mutations, mRNA and protein expression in canine lymphoma: might c-kit represent a therapeutic target? Vet Immunol Immunopathol 2013; 154:153-9. [PMID: 23791075 DOI: 10.1016/j.vetimm.2013.05.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 04/15/2013] [Accepted: 05/22/2013] [Indexed: 12/14/2022]
Abstract
c-kit plays an important role in proliferation, survival and differentiation of hematopoietic progenitor cells. In human hematopoietic malignancies, c-kit is mostly expressed by progenitor cell neoplasms and seldom by mature cell neoplasms. Aim of this study was to evaluate c-kit expression in canine lymphoma. Twenty-five B-cell lymphomas and 21 T-cell lymphomas were enrolled in the study. c-kit mRNA and protein expression was measured in lymph node fine needle aspirates by quantitative real-time RT-PCR, flow cytometry and immunocytochemistry, while the occurrence of KIT mutations on exons 8-11 and 17 was investigated by direct cDNA sequencing. KIT mRNA was amplifiable but below the limit of quantification in 76% of B-cell lymphomas and 33% of T-cell lymphomas. Remaining samples showed a very low expression of KIT, except for some high grade (HG) T-cell lymphomas where a comparatively higher mRNA amount was observed. Transcriptional data were confirmed at the protein level. No gain-of-function mutations were observed. Among canine lymphomas, T-cell lymphoma typically shows an aggressive biological behavior, partly being attributable to the lack of efficacious treatment options, and the evidence of c-kit expression in HG T-cell lymphomas might represent the rationale for its routinely diagnostic evaluation and the use of tyrosine kinase inhibitors in future clinical trials.
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Affiliation(s)
- M Giantin
- Dipartimento di Biomedicina Comparata e Alimentazione, Università degli Studi di Padova, viale Università 16, 35020 Agripolis-Legnaro Padova, Italy.
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32
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Feeney DA, Sharkey LC, Steward SM, Bahr KL, Henson MS, Ito D, O'Brien TD, Jessen CR, Husbands BD, Borgatti A, Modiano JF. Parenchymal signal intensity in 3-T body MRI of dogs with hematopoietic neoplasia. Comp Med 2013; 63:174-182. [PMID: 23582424 PMCID: PMC3625058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2012] [Revised: 08/16/2012] [Accepted: 11/15/2012] [Indexed: 06/02/2023]
Abstract
We performed a preliminary study involving 10 dogs to assess the applicability of body MRI for staging of canine diffuse hematopoietic neoplasia. T1-weighted (before and after intravenous gadolinium), T2-weighted, in-phase, out-of-phase, and short tau inversion recovery pulse sequences were used. By using digital region of interest (ROI) and visual comparison techniques, relative parenchymal organ (medial iliac lymph nodes, liver, spleen, kidney cortex, and kidney medulla) signal intensity was quantified as less than, equal to, or greater than that of skeletal muscle in 2 clinically normal young adult dogs and 10 dogs affected with either B-cell lymphoma (n = 7) or myelodysplastic syndrome (n = 3). Falciform fat and urinary bladder were evaluated to provide additional perspective regarding signal intensity from the pulse sequences. Dogs with nonfocal disease could be distinguished from normal dogs according to both the visual and ROI signal-intensity relationships. In normal dogs, liver signal intensity on the T2-weighted sequence was greater than that of skeletal muscle by using either the visual or ROI approach. However in affected dogs, T2-weighted liver signal intensity was less than that of skeletal muscle by using either the ROI approach (10 of 10 dogs) or the visual approach (9 of 10 dogs). These findings suggest that the comparison of relative signal intensity among organs may have merit as a research model for infiltrative parenchymal disease (ROI approach) or metabolic effects of disease; this comparison may have practical clinical applicability (visual comparison approach) as well.
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Affiliation(s)
- Daniel A Feeney
- Department of Veterinary Clinical Sciences, University of Minnesota, St Paul, Minnesota, USA.
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33
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Katayama M, Okamura Y, Katayama R, Sasaki J, Shimamura S, Uzuka Y, Kamishina H, Nezu Y. Presumptive acute lung injury following multiple surgeries in a cat. Can Vet J 2013; 54:381-386. [PMID: 24082167 PMCID: PMC3595944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A 12-year-old, 3.5-kg spayed female domestic shorthair cat had a tracheal mass identified as malignant B-cell lymphoma. The cat had tracheal resection and subsequently developed laryngeal paralysis. Due to multiple episodes of respiratory distress the cat subsequently had tracheal surgeries. Finally, the cat had a sudden onset of severe respiratory distress and collapsed. Computed tomography imaging and arterial blood gas analysis supported a diagnosis of acute lung injury.
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34
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Canisso IF, Pinn TL, Gerdin JA, Ollivett TL, Buckles EL, Schweizer CM, Ainsworth DM. B-cell multicentric lymphoma as a probable cause of abortion in a Quarter horse broodmare. Can Vet J 2013; 54:288-291. [PMID: 23997268 PMCID: PMC3573638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A 5-year-old Quarter horse broodmare was evaluated for inappetence, depression, and diarrhea 13 days after aborting a 9-month gestation fetus. Clinical and laboratory examination ruled out uterine rupture and peritonitis. Ultrasonography of the uterus combined with cytological analysis of peritoneal fluid suggested the existence of diffuse lymphoma. A multicentric B-cell lymphoma involving the uterus and ovary was confirmed at necropsy and histopathological examination.
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Affiliation(s)
- Igor F Canisso
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, USA.
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35
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Klopfleisch R. Personalized medicine in veterinary oncology: minimal residual disease and circulating tumour cells in dogs. Vet J 2012; 195:263-4. [PMID: 23127870 DOI: 10.1016/j.tvjl.2012.10.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Accepted: 10/01/2012] [Indexed: 11/20/2022]
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36
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Kim NH, Ciesielski T, Kim JH, Yhee JY, Im KS, Nam HM, Kim IH, Kim JH, Sur JH. Primary central nervous system B-cell lymphoma in a young dog. Can Vet J 2012; 53:559-564. [PMID: 23115372 PMCID: PMC3327599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This report describes a primary central nervous system B-cell lymphoma in a 3-year-old intact female Maltese dog. Canine primary central nervous system lymphomas constitute about 4% of all intracranial primary neoplasms, but comprehensive histopathologic classifications have rarely been carried out. This is the first report of this disease in a young adult dog.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Jung-Hyang Sur
- Address all correspondence to Dr. Jung-Hyang Sur; e-mail:
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37
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Aitken-Palmer C, Kiupel M, Russell K, Hayes L, Heard D. Cutaneous B-cell lymphoma in a Perdido Key Beach mouse (Peromyscus poliontus trissyllepsis). Comp Med 2012; 62:95-98. [PMID: 22546914 PMCID: PMC3318245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 08/06/2011] [Accepted: 11/19/2011] [Indexed: 05/31/2023]
Abstract
The Perdido Key beach mouse (Peromyscus poliontus trissyllepsis) is an endangered mammal indigenous to the panhandle beaches of Northwest Florida. A captive 3.5-y-old female mouse was evaluated because of severe pruritus, diffuse alopecia, skin reddening, and ulcerations over the dorsum of her body. Initial skin biopsy of the affected area suggested bacterial dermatitis but was inconclusive. Despite empiric antibiotic, anthelmintic, and antihistamine treatments, she continued to decline and developed severe ulcerations over the majority of her body. Postmortem histopathologic evaluation led to a tentative diagnosis of epitheliotropic lymphoma, suggestive of a mycosis fungoides T-cell-type cutaneous lymphoma. However, immunohistochemistry results challenged this diagnosis, indicating that the lesion was actually an epidermotropic B-cell lymphoma. Spontaneous cutaneous B-cell lymphomas are rare in rodents and had not previously been reported to occur in Perdido Key beach mice. This case report provides initial evidence that the Perdido Key beach mouse is susceptible to cutaneous B-cell lymphoma.
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Affiliation(s)
- Copper Aitken-Palmer
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, USA.
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38
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Huang SH, Kozak PJ, Kim J, Habineza-Ndikuyeze G, Meade C, Gaurnier-Hausser A, Patel R, Robertson E, Mason NJ. Evidence of an oncogenic gammaherpesvirus in domestic dogs. Virology 2012; 427:107-17. [PMID: 22405628 DOI: 10.1016/j.virol.2012.02.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 01/13/2012] [Accepted: 02/08/2012] [Indexed: 12/12/2022]
Abstract
In humans, chronic infection with the gammaherpesvirus Epstein-Barr virus is usually asymptomatic; however some infected individuals develop hematological and epithelial malignancies. The exact role of EBV in lymphomagenesis is poorly understood partly because of the lack of clinically relevant animal models. Here we report the detection of serological responses against EBV capsid antigens in healthy dogs and dogs with spontaneous lymphoma and that dogs with the highest antibody titers have B cell lymphoma. Moreover, we demonstrate the presence of EBV-like viral DNA and RNA sequences and Latent Membrane Protein-1 in malignant lymph nodes of dogs with lymphoma. Finally, electron microscopy of canine malignant B cells revealed the presence of classic herpesvirus particles. These findings suggest that dogs can be naturally infected with an EBV-like gammaherpesvirus that may contribute to lymphomagenesis and that dogs might represent a spontaneous model to investigate environmental and genetic factors that influence gammaherpesvirus-associated lymphomagenesis in humans.
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Affiliation(s)
- Shih-Hung Huang
- Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104-6010, USA.
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39
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Valentine BA, Stieger-Vanegas S, Brown SR, Tornquist SJ, Young K. Exophthalmos due to multicentric B-cell lymphoma in a goat. Can Vet J 2011; 52:1350-1352. [PMID: 22654143 PMCID: PMC3215472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Multicentric B-cell lymphoma with extensive retrobulbar involvement was diagnosed in a 6-year-old Nubian goat that was presented with conjunctival swelling and exophthalmos. Serologic testing for bovine leukemia virus (BLV) was negative. Postmortem computed tomography aided in identification of the extent of soft tissue and bone lesions.
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Affiliation(s)
- Beth A Valentine
- Veterinary Diagnostic Laboratory and Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR, USA.
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40
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Seo KW, Choi US, Lee JB, Kim MI, Oh YI, Chung JY, Lee SK, Hwang CY, Youn HY. Central nervous system relapses in 3 dogs with B-cell lymphoma. Can Vet J 2011; 52:778-783. [PMID: 22210944 PMCID: PMC3119244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This report describes cases of central nervous system (CNS) relapse that occurred during chemotherapy in 3 dogs with lymphoma. Diagnosis was made by a combination of clinical signs and cytology of cerebrospinal fluid. The suspected risk factors, clinical features common to the 3 dogs, and treatment options are discussed.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Hwa-Young Youn
- Address all correspondence to Dr. Hwa-Young Youn; e-mail:
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41
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Pinheiro DY, Garden OA, Lara A, Stell A. Investigating the pathogenic role of regulatory T cells in canine B cell lymphoma. Vet Rec 2011; 168:196. [PMID: 21493540 DOI: 10.1136/vr.d1056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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42
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Hermeyer K, Seehusen F, Gehlen H, Peters M, Wohlsein P. Cutaneous T-cell-rich B-cell lymphoma in a horse. Berl Munch Tierarztl Wochenschr 2010; 123:422-424. [PMID: 21038813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Cutaneous malignant lymphomas are rare in horses and comprise predominantly T-cell-rich B-cell lymphomas. They are characterized by multiple tumour nodules affecting predominantly female horses with a survival rate of months to years. At the final stage, metastases to regional lymph nodes occur, whereas widespread organ involvement is rarely reported. In this case report, a cutaneous T-cell-rich B-cell lymphoma in a 7-year-old standardbred gelding with metastases is described. Clinically, multiple cutaneous and subcutaneous nodules, enlarged superficial lymph nodes, rapid weight loss, and ventral oedema were observed. In addition to the clinical findings, necropsy revealed tumour infiltration in multiple body lymph nodes, a solitary pleural mass, and few pulmonary and intestinal tumour nodules. Microscopically, all neoplasms were composed of a densely packed cell population consisting of large lymphoblastic cells expressing CD79a, and numerous small, round, CD3-positive T lymphocytes. With respect to these findings the diagnosis of a cutaneous T-cell-rich B-cell lymphoma with metastases was made.
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Affiliation(s)
- Kathrin Hermeyer
- Institut für Pathologie der Stiftung Tierärztliche Hochschule Hannover, Germany
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Harrison TM, McKnight CA, Sikarskie JG, Kitchell BE, Garner MM, Raymond JT, Fitzgerald SD, Valli VE, Agnew D, Kiupel M. Malignant lymphoma in african lions (panthera leo). Vet Pathol 2010; 47:952-7. [PMID: 20610770 DOI: 10.1177/0300985810375054] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Malignant lymphoma has become an increasingly recognized problem in African lions (Panthera leo). Eleven African lions (9 male and 2 female) with clinical signs and gross and microscopic lesions of malignant lymphoma were evaluated in this study. All animals were older adults, ranging in age from 14 to 19 years. Immunohistochemically, 10 of the 11 lions had T-cell lymphomas (CD3(+), CD79a(-)), and 1 lion was diagnosed with a B-cell lymphoma (CD3(-), CD79a(+)). The spleen appeared to be the primary site of neoplastic growth in all T-cell lymphomas, with involvement of the liver (6/11) and regional lymph nodes (5/11) also commonly observed. The B-cell lymphoma affected the peripheral lymph nodes, liver, and spleen. According to the current veterinary and human World Health Organization classification of hematopoietic neoplasms, T-cell lymphoma subtypes included peripheral T-cell lymphoma (4/11), precursor (acute) T-cell lymphoblastic lymphoma/leukemia (2/11), chronic T-cell lymphocytic lymphoma/leukemia (3/11), and T-zone lymphoma (1/11). The single B-cell lymphoma subtype was consistent with diffuse large B-cell lymphoma. Feline leukemia virus (FeLV) and feline immunodeficiency virus (FIV) testing by immunohistochemistry on sections of malignant lymphoma was negative for all 11 lions. One lion was seropositive for FeLV. In contrast to domestic and exotic cats, in which B-cell lymphomas are more common than T-cell lymphomas, African lions in this study had malignant lymphomas that were primarily of T-cell origin. Neither FeLV nor FIV, important causes of malignant lymphoma in domestic cats, seems to be significant in the pathogenesis of malignant lymphoma in African lions.
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Abstract
A 7-year-old, intact male domestic shorthair cat was presented with a progressive, non-weight-bearing lameness of the right forelimb. A neurological examination of the patient at the Small Animal Clinic revealed a paralysis of the radial nerve with sustained cutaneous sensation and a hyperaesthetic response. Further clinical, radiological and pathological findings lead to a diagnosis of a primary, neurotropic B-cell lymphoma in the brachial plexus.
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Affiliation(s)
- Helge Linzmann
- Freie Universität Berlin, Faculty of Veterinary Medicine, Small Animal Clinic, Oertzenweg 19b, 14163 Berlin, Germany
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Fosmire SP, Thomas R, Jubala CM, Wojcieszyn JW, Valli VEO, Getzy DM, Smith TL, Gardner LA, Ritt MG, Bell JS, Freeman KP, Greenfield BE, Lana SE, Kisseberth WC, Helfand SC, Cutter GR, Breen M, Modiano JF. Inactivation of the p16 cyclin-dependent kinase inhibitor in high-grade canine non-Hodgkin's T-cell lymphoma. Vet Pathol 2007; 44:467-78. [PMID: 17606508 DOI: 10.1354/vp.44-4-467] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The significance of p16/Rb tumor suppressor pathway inactivation in T-cell non-Hodgkin's lymphoma (NHL) remains incompletely understood. We used naturally occurring canine NHL to test the hypothesis that p16 inactivation has specific pathologic correlates. Forty-eight samples (22 T-cell NHL and 26 B-cell NHL) were included. As applicable, metaphase- or array-based comparative genomic hybridization, Southern blotting, promoter methylation, and Rb phosphorylation were used to determine the presence, expression, and activity of p16. Fisher's exact test was used to test for significance. Deletion of p16 (or loss of dog chromosome 11) was restricted to high-grade T-cell NHL (lymphoblastic T-cell lymphoma and peripheral T-cell lymphoma, not otherwise specified). These were characterized by a concomitant increase of tumor cells with Rb phosphorylation at canonical CDK4 sites. Rb phosphorylation also was seen in high-grade B-cell NHL (diffuse large B-cell lymphoma and Burkitt-type lymphoma), but in those cases, it appeared to be associated with c-Myc overexpression. The data show that p16 deletion or inactivation occurs almost exclusively in high-grade T-cell NHL; however, alternative pathways can generate functional phenotypes of Rb deficiency in low-grade T-cell NHL and in high-grade B-cell NHL. Both morphologic classification according to World Health Organization criteria and assessment of Rb phosphorylation are prognostically valuable parameters for canine NHL.
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Affiliation(s)
- S P Fosmire
- Integrated Department of Immunology, University of Colorado at Denver and Health Sciences Center, AMC Campus, 1600 Pierce, Denver, CO 80214, USA
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Wolfesberger B, Guija de Arespacohaga A, Willmann M, Gerner W, Miller I, Schwendenwein I, Kleiter M, Egerbacher M, Thalhammer JG, Muellauer L, Skalicky M, Walter I. Expression of Vascular Endothelial Growth Factor and its Receptors in Canine Lymphoma. J Comp Pathol 2007; 137:30-40. [PMID: 17467003 DOI: 10.1016/j.jcpa.2007.03.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2006] [Accepted: 03/13/2007] [Indexed: 11/30/2022]
Abstract
Vascular endothelial growth factor (VEGF) stimulates endothelial cell proliferation and has a pivotal role in tumour angiogenesis. The expression of VEGF and its receptors VEGFR-1 and VEGFR-2 was examined immunohistochemically in 43 specimens of canine lymphoma and in six normal lymph nodes. Western blotting and reverse transcriptase polymerase chain reaction (RT-PCR) were performed to detect VEGF protein and mRNA, respectively. VEGF protein was expressed by 60% of the tumours with diffuse cytoplasmic labelling of the neoplastic cells. Endothelial cells, macrophages and plasma cells were also immunolabelled. VEGFR-1 was expressed by variable numbers of neoplastic cells in 54% of lymphoma specimens. VEGFR-1 was also expressed by macrophages, plasma cells, reticulum cells, and vascular endothelial cells. Macrophages and lymphocytes in germinal centres of normal lymph nodes were also immunoreactive with anti-VEGF and VEGFR-1. Most tumours did not express VEGFR-2 but in 7% of sections there was focal labelling of neoplastic and endothelial cells, with a cytoplasmic and perinuclear pattern. The observed variability in expression of VEGF and its receptors probably relates to the fact that lymphoma is a heterogeneous lymphoproliferative tumour. Individual differences in VEGF and VEGFR expression must be taken into account when VEGF and VEGFR-targeted approaches for anti-angiogenic therapy are considered in dogs.
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Affiliation(s)
| | | | - M Willmann
- Clinic of Internal Medicine and Infectious Diseases
| | - W Gerner
- Institute of Clinical Immunology
| | | | | | - M Kleiter
- Clinic of Internal Medicine and Infectious Diseases
| | | | | | - L Muellauer
- Clinical Pathology, Medical University of Vienna, Vienna, Austria
| | - M Skalicky
- Institute of Pathophysiology, University of Veterinary Medicine, Vienna
| | - I Walter
- Institute of Histology and Embryology
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Abstract
A 5-year-old, spayed female German Shepherd dog was admitted to hospital with marked generalised lymphadenomegaly and splenomegaly. A stage Va B-cell multicentric lymphoma was diagnosed on clinical, cytological (lymph node, bone marrow), histological-immunohistochemical (lymph node excision) and imaging grounds. Since no satisfactory remission was achieved using a multi-drug chemotherapy protocol that included cyclophosphamide, vincristine, cytosine arabinoside, prednisolone, and subsequently supplemented by L-asparaginase, it was replaced by another protocol combining vincristine, L-asparaginase, prednisolone, cyclophosphamide and doxorubicin. Soon after the third weekly session of the second protocol, the clinical status of the animal deteriorated suddenly and severely, with a bleeding tendency, jaundice, hyperuricaemia, hyperphosphataemia, azotaemia, hyperbilirubinaemia and, presumptive disseminated intravascular coagulation. There was also complete regression of lymphadenomegaly. This report emphasises the clinicopathological features and the diagnostic peculiarities of the acute tumour lysis syndrome, which occurs uncommonly in dogs.
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Affiliation(s)
- M E Mylonakis
- Companion Animal Clinic, Faculty of Veterinary Medicine, Aristotle University of Thessaloniki, Greece.
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Gaines PJ, Powell TD, Walmsley SJ, Estredge KL, Wisnewski N, Stinchcomb DT, Withrow SJ, Lana SE. Identification of serum biomarkers for canine B-cell lymphoma by use of surface-enhanced laser desorption-ionization time-of-flight mass spectrometry. Am J Vet Res 2007; 68:405-10. [PMID: 17397297 DOI: 10.2460/ajvr.68.4.405] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To identify biomarker proteins for B-cell lymphoma in canine serum by use of surface-enhanced laser desorption-ionization time-of-flight (SELDI-TOF) mass spectrometry and build classification trees with multiple biomarkers that have high sensitivity and specificity for that tumor type. SAMPLE POPULATION Sera from 29 dogs with B-cell lymphoma and 87 control dogs (approx equal numbers of healthy dogs, dogs with malignant cancers other than B-cell lymphoma, and dogs with various nonneoplastic diseases or conditions). PROCEDURES Serum samples were fractionated chromatographically and analyzed via SELDI-TOF mass spectrometry. Peak amplitudes of the spectra from the 2 sample groups were compared to identify potential biomarker peaks, and classification trees were built by use of computer software to detect patterns formed by multiple biomarkers among SELDI data sets. RESULTS Several biomarker protein peaks in canine serum were identified, and a classification tree was built on the basis of 3 biomarker protein peaks. With 10-fold cross-validation of the sample set, the best individual serum biomarker peak had 75% sensitivity and 86% specificity and the classification tree had 97% sensitivity and 91% specificity for the classification of B-cell lymphoma. CONCLUSIONS AND CLINICAL RELEVANCE On the basis of biomarker proteins identified in canine serum, classification trees were constructed, which may be useful for the development of a diagnostic test for B-cell lymphoma in dogs. Further investigation is needed to determine whether these biomarkers are useful for screening susceptible dog populations or for monitoring disease status during treatment and remission of B-cell lymphoma in dogs.
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Brunker JD, Hoover JP. B-cell lymphoma in a dog with ehrlichiosis (Ehrlichia canis) and systemic histoplasmosis (Histoplasma capsulatum). Can Vet J 2007; 48:292-5. [PMID: 17436907 PMCID: PMC1800954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A mixed breed dog treated for ehrlichiosis and systemic histoplasmosis developed a refractory thrombocytopenia. When an abdominal mass was detected, exploratory laparotomy and biopsies confirmed lymphoma, which on immunohistochemical stains was determined to be of B-cell origin. Conceivably, the B-cell lymphoma in this dog was associated with chronic inflammation from ehrlichiosis, histoplasmosis, or both.
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Affiliation(s)
- Jill D Brunker
- Department of Veterinary Clinical Sciences, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
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50
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Guija de Arespacochaga A, Schwendenwein I, Weissenböck H. Retrospective Study of 82 Cases of Canine Lymphoma in Austria based on the Working Formulation and Immunophenotyping. J Comp Pathol 2007; 136:186-92. [PMID: 17416237 DOI: 10.1016/j.jcpa.2007.01.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2006] [Accepted: 01/31/2007] [Indexed: 12/29/2022]
Abstract
In human beings the prevalence of different non-Hodgkin's lymphoma (NHL) subtypes varies according to geographical region. The aim of this study was to classify canine lymphomas in Austria and to compare the results with those of similar studies in other countries. Eighty-two NHLs were classified according to their morphology (based on the Working Formulation) and their immunophenotype (determined with anti-T-cell and anti-B-cell antibodies). Forty-two (51.2%) were of B-cell subtype, 24 (29.3%) of T-cell subtype, and 16 (19.5%) remained unclassified, because of either negative labelling (9/16) or immunoreaction with both antibodies (7/16). Diffuse lymphomas predominated (99%) over follicular lymphomas, while intermediate grade lymphomas (61%) outnumbered high-grade lymphomas (23.2%) and low grade lymphomas (13.4%). The most common subtype was the diffuse large cell lymphoma (40.2%), followed by the large cell immunoblastic lymphoma (13.4%) and the diffuse small lymphocytic lymphoma (13.4%). Follicular large cell lymphoma and small noncleaved cell lymphoma were uncommon (1.2%). Generally, these findings accord with those of similar studies in Western Europe, making the existence of specific risk factors in Austria unlikely.
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MESH Headings
- Animals
- Austria/epidemiology
- B-Lymphocytes/metabolism
- B-Lymphocytes/pathology
- Biomarkers, Tumor/metabolism
- Dog Diseases/epidemiology
- Dog Diseases/metabolism
- Dog Diseases/pathology
- Dogs
- Female
- Fluorescent Antibody Technique, Indirect/veterinary
- Immunoenzyme Techniques/veterinary
- Immunophenotyping/veterinary
- Lymph Nodes/metabolism
- Lymphoma, B-Cell/epidemiology
- Lymphoma, B-Cell/metabolism
- Lymphoma, B-Cell/pathology
- Lymphoma, B-Cell/veterinary
- Lymphoma, T-Cell/epidemiology
- Lymphoma, T-Cell/metabolism
- Lymphoma, T-Cell/pathology
- Lymphoma, T-Cell/veterinary
- Male
- Prevalence
- Retrospective Studies
- T-Lymphocytes/metabolism
- T-Lymphocytes/pathology
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Affiliation(s)
- A Guija de Arespacochaga
- Central Laboratory, University of Veterinary Medicine Vienna, Veterinärplatz 1, A-1210 Vienna, Austria.
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