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Epitheliotropic cutaneous lymphoma in a Javan silvered leaf monkey (
Trachypithecus auratus auratus
) and attempted treatment with masitinib. VETERINARY RECORD CASE REPORTS 2022. [DOI: 10.1002/vrc2.533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Hirata A, Hashimoto K, Katoh Y, Sakai H, Bruce AG, Rose TM, Kaneko A, Suzuki J, Nikami H, Yanai T. Characterization of spontaneous malignant lymphomas in Japanese macaques (Macaca fuscata). Vet Pathol 2014; 52:566-72. [PMID: 25248517 DOI: 10.1177/0300985814547389] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Lymphomas are common spontaneous tumors in nonhuman primates but remain poorly characterized in Japanese macaques (Macaca fuscata). This study examined 5 cases of spontaneous malignant lymphoma in Japanese macaques, focusing on the immunophenotypes and presence of simian lymphocryptoviruses, which are Epstein-Barr virus-related herpesviruses in nonhuman primates. The macaques with lymphoma were 5 to 28 years old, indicating that lymphomas develop over a wide age range. The common macroscopic findings were splenomegaly and enlargement of lymph nodes. Histologic and immunohistochemical analyses revealed that all cases were non-Hodgkin type and exhibited a T-cell phenotype, positive for CD3 but negative for CD20 and CD79α. The lymphomas exhibited diverse cellular morphologies and were subdivided into 3 types according to the World Health Organization classification. These included 3 cases of peripheral T-cell lymphoma, not otherwise specified; 1 case of T-cell prolymphocytic leukemia; and 1 case of an unclassifiable T-cell lymphoma. Positive signals were detected by in situ hybridization in 2 of the 4 examined cases using probes for the Epstein-Barr virus-encoded small RNA (EBER). Furthermore, the presence of M. fuscata lymphocryptovirus 2, a macaque homolog of Epstein-Barr virus, was demonstrated in EBER-positive cases by polymerase chain reaction amplification followed by direct sequencing. Immunohistochemistry using antibody to the Epstein-Barr virus-encoded nuclear antigen 2 was negative, even in the EBER-positive cases. The present study suggests that T-cell lymphoma is more common than B-cell lymphoma in Japanese macaques and that M. fuscata lymphocryptovirus 2 is present in some cases.
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Affiliation(s)
- A Hirata
- Division of Animal Experiment, Life Science Research Center, Gifu University, Gifu City, Gifu, Japan
| | - K Hashimoto
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu City, Gifu, Japan
| | - Y Katoh
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu City, Gifu, Japan
| | - H Sakai
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu City, Gifu, Japan
| | - A G Bruce
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - T M Rose
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - A Kaneko
- Center for Human Evolution Modeling Research, Primate Research Institute, Kyoto University, Inuyama City, Aichi, Japan
| | - J Suzuki
- Center for Human Evolution Modeling Research, Primate Research Institute, Kyoto University, Inuyama City, Aichi, Japan
| | - H Nikami
- Division of Animal Experiment, Life Science Research Center, Gifu University, Gifu City, Gifu, Japan
| | - T Yanai
- Laboratory of Veterinary Pathology, Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, Gifu City, Gifu, Japan
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Ehlers B, Ochs A, Leendertz F, Goltz M, Boesch C, Mätz-Rensing K. Novel simian homologues of Epstein-Barr virus. J Virol 2003; 77:10695-9. [PMID: 12970457 PMCID: PMC228477 DOI: 10.1128/jvi.77.19.10695-10699.2003] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Thirty different lymphocryptoviruses (LCV), 26 of them novel, were detected in primates by a panherpesvirus PCR assay. Nineteen LCV from chimpanzees, bonobos, gorillas, and other Old World primates were closely related to Epstein-Barr virus (EBV), the type species of the genus lymphocryptovirus. Seven LCV originating from New World primates were related to callitrichine herpesvirus 3 (CalHV-3), the first recognized New World LCV. Importantly, a second LCV from gorillas and three LCV from orangutans and gibbons were only distantly related to EBV and CalHV-3. They were tentatively assigned to a novel genogroup of Old World primate LCV. The work described in the paper may also help identify an as yet unknown human LCV.
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