Macaque homologs of EBV and KSHV show uniquely different associations with simian AIDS-related lymphomas

Bruce, A. Gregory, Bielefeldt-Ohmann, Helle, Barcy, Serge, Bakke, Angela M., Lewis, Patrick, Tsai, Che-Chung, Murnane, Robert D. and Rose, Timothy M. (2012) Macaque homologs of EBV and KSHV show uniquely different associations with simian AIDS-related lymphomas. Plos Pathogens, 8 10: e1002962-1-e1002962-14. doi:10.1371/journal.ppat.1002962


Author Bruce, A. Gregory
Bielefeldt-Ohmann, Helle
Barcy, Serge
Bakke, Angela M.
Lewis, Patrick
Tsai, Che-Chung
Murnane, Robert D.
Rose, Timothy M.
Title Macaque homologs of EBV and KSHV show uniquely different associations with simian AIDS-related lymphomas
Journal name Plos Pathogens   Check publisher's open access policy
ISSN 1553-7374
Publication date 2012-10
Sub-type Article (original research)
DOI 10.1371/journal.ppat.1002962
Open Access Status DOI
Volume 8
Issue 10
Start page e1002962-1
End page e1002962-14
Total pages 14
Place of publication San Francisco, CA,United States
Publisher Public Library of Science
Collection year 2013
Language eng
Abstract Two gammaherpesviruses, Epstein-Barr virus (EBV) (Lymphocryptovirus genus) and Kaposi's sarcoma-associated herpesvirus (KSHV) (Rhadinovirus genus) have been implicated in the etiology of AIDS-associated lymphomas. Homologs of these viruses have been identified in macaques and other non-human primates. In order to assess the association of these viruses with non-human primate disease, archived lymphoma samples were screened for the presence of macaque lymphocryptovirus (LCV) homologs of EBV, and macaque rhadinoviruses belonging to the RV1 lineage of KSHV homologs or the more distant RV2 lineage of Old World primate rhadinoviruses. Viral loads were determined by QPCR and infected cells were identified by immunolabeling for different viral proteins. The lymphomas segregated into three groups. The first group (n = 6) was associated with SIV/SHIV infections, contained high levels of LCV (1-25 genomes/cell) and expressed the B-cell antigens CD20 or BLA.36. A strong EBNA-2 signal was detected in the nuclei of the neoplastic cells in one of the LCV-high lymphomas, indicative of a type III latency stage. None of the lymphomas in this group stained for the LCV viral capsid antigen (VCA) lytic marker. The second group (n = 5) was associated with D-type simian retrovirus-2 (SRV-2) infections, contained high levels of RV2 rhadinovirus (9-790 genomes/cell) and expressed the CD3 T-cell marker. The third group (n = 3) was associated with SIV/SHIV infections, contained high levels of RV2 rhadinovirus (2-260 genomes/cell) and was negative for both CD20 and CD3. In both the CD3-positive and CD3/CD20-negative lymphomas, the neoplastic cells stained strongly for markers of RV2 lytic replication. None of the lymphomas had detectable levels of retroperitoneal fibromatosis herpesvirus (RFHV), the macaque RV1 homolog of KSHV. Our data suggest etiological roles for both lymphocryptoviruses and RV2 rhadinoviruses in the development of simian AIDS-associated lymphomas and indicate that the virus-infected neoplastic lymphoid cells are derived from different lymphocyte lineages and differentiation stages.
Keyword Epstein-barr-virus
Sarcoma-associated herpesvirus
Infected rhesus macaques
Hiv-associated lymphomas
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Article numbere1002962

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Veterinary Science Publications
 
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