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Journal of Clinical Microbiology, September 2000, p. 3219-3225, Vol. 38, No. 9
Department of Medicine, Brigham and Women's
Hospital, Harvard Medical School, Boston, Massachusetts 02115
Received 27 January 2000/Returned for modification 28 April
2000/Accepted 11 June 2000
Epstein-Barr virus (EBV) is the most common cause of infectious
mononucleosis and is associated with the development of several human
malignancies. A closely related herpesvirus in the same lymphocryptovirus (LCV) genera as EBV naturally infects rhesus monkeys
and provides an important animal model for studying EBV pathogenesis.
We cloned the small viral capsid antigen (sVCA) homologue from the
rhesus LCV and developed a peptide enzyme-linked immunosorbent assay
(ELISA) to determine whether epitopes in the rhesus LCV sVCA are a
reliable indicator of rhesus LCV infection. In order to define a
"gold standard" for rhesus LCV infection, we also cloned the
EBV-encoded small RNA 1 (EBER1) and EBER2 homologues from rhesus LCV
and developed a reverse transcription (RT)-PCR assay to detect
persistent LCV infection in rhesus monkey peripheral blood lymphocytes.
Animals from a conventional and a hand-reared colony were studied to
compare the prevalence of rhesus LCV infection in the two groups. There
was a 100% correlation between the peptide ELISA and EBER RT-PCR
results for rhesus LCV infection. In addition, specificity for LCV
infection and exclusion of potential cross-reactivity to the rhesus
rhadinovirus sVCA homologue could be demonstrated using sera from
experimentally infected animals. These studies establish two novel
assays for reliable diagnosis of acute and persistent rhesus LCV
infections. The rhesus LCV sVCA peptide ELISA provides a sensitive and
reliable assay for routine screening, and these studies of the
hand-reared colony confirm the feasibility of raising rhesus LCV-naive animals.
0095-1137/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
Cloning of the Rhesus Lymphocryptovirus Viral
Capsid Antigen and Epstein-Barr Virus-Encoded Small RNA Homologues and
Use in Diagnosis of Acute and Persistent Infections
*
Corresponding author. Mailing address: Channing
Laboratories, 181 Longwood Ave., Boston, MA 02115. Phone: (617)
525-4258. Fax: (617) 525-4257. E-mail:
fwang{at}rics.bwh.harvard.edu.
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