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Journal of Virology, April 2000, p. 3517-3524, Vol. 74, No. 8
0022-538X/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
Pathogenesis of Herpes Simplex Virus-Induced Ocular
Immunoinflammatory Lesions in B-Cell-Deficient Mice
Shilpa P.
Deshpande,
Mei
Zheng,
Massoud
Daheshia, and
Barry T.
Rouse*
Department of Microbiology, University of
Tennessee, Knoxville, Tennessee 37996-0845
Received 22 November 1999/Accepted 19 January 2000
The role of B cells and humoral immunity in herpes simplex virus
(HSV) ocular infections was studied in immunoglobulin µ chain gene-targeted B-cell-deficient mice (µK/O). At doses of virus well
tolerated by immunocompetent mice, heightened susceptibility of
µK/O mice to herpetic encephalitis as well as to herpetic stromal keratitis (HSK) was observed. An explanation was sought for the increased severity of HSK in the µK/O mice. First, the lack of antibody responses in µK/O mice resulted in longer viral persistence and dissemination to the corneal stroma, the site of inflammation. Prolonged virus expression in the corneal stroma was suggested to cause
bystander activation of Th1-type CD4+ T cells, further
contributing to the severity of HSK lesion expression in µK/O mice.
Second, µK/O mice generated minimal Th2 cytokine responses compared
to wild-type mice. Such responses might serve to downregulate the
severity of Th1-mediated HSK lesions.
*
Corresponding author. Mailing address: Department of
Microbiology, M409, Walters Life Science Building, University of
Tennessee, Knoxville, TN 37996-0845. Phone: (423) 974-4026. Fax: (423)
974-4007. E-mail: btr{at}utk.edu.
Journal of Virology, April 2000, p. 3517-3524, Vol. 74, No. 8
0022-538X/00/$04.00+0
Copyright © 2000, American Society for Microbiology. All rights reserved.
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