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Journal of Virology, October 2000, p. 9294-9299, Vol. 74, No. 19
Department of Microbiology and Immunology,
The University of North Carolina at Chapel Hill, Chapel Hill, North
Carolina 27599-7290
Received 14 February 2000/Accepted 28 June 2000
Several alphaviruses, including the Sindbis-group viruses, Ross
River virus, O'nyong-nyong virus, and Chikungunya virus, are associated with outbreaks of acute and persistent arthralgia and arthritis in humans. Mechanisms underlying alphavirus-induced arthralgia and arthritis are not clearly understood, though direct viral replication within or around the affected joints is thought to
contribute to disease. S.A.AR86 is a Sindbis-group alphavirus closely
related to the arthralgia-associated Ockelbo and GirdwoodS.A viruses.
Following inoculation with S.A.AR86 derived from a molecular clone,
infectious virus was isolated from bone and joint tissue 1 to 6 days
postinfection. Studies using either in situ hybridization or
S.A.AR86-derived double promoter viruses and replicons expressing green
fluorescent protein localized sites of viral replication to the
periosteum, tendons, and endosteum within the epiphyses of the long
bones adjacent to articular joints. These results demonstrate that
alphaviruses associated with arthralgia in humans replicate within
bone-associated connective tissue adjacent to articular joints in an
adult mouse model.
0022-538X/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
Sindbis-Group Alphavirus Replication in Periosteum
and Endosteum of Long Bones in Adult Mice
and
*
Corresponding author. Mailing address: Department of
Microbiology and Immunology, Campus Box 7290, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7290. Phone: (919) 966-4026. Fax: (919) 843-6924. E-mail: heisem{at}med.unc.edu.
Present address: Lineberger Comprehensive Cancer Center, The
University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-7295.
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