January 1989
Volume 30, Issue 1
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Articles  |   January 1989
The effect of cellular immune tolerance to HSV-1 antigens on the immunopathology of HSV-1 keratitis.
Author Affiliations
  • R L Hendricks
    Department of Ophthalmology, Lions of Illinois Eye Research Institute, University of Illinois College of Medicine, Chicago 60612.
  • R J Epstein
    Department of Ophthalmology, Lions of Illinois Eye Research Institute, University of Illinois College of Medicine, Chicago 60612.
  • T Tumpey
    Department of Ophthalmology, Lions of Illinois Eye Research Institute, University of Illinois College of Medicine, Chicago 60612.
Investigative Ophthalmology & Visual Science January 1989, Vol.30, 105-115. doi:
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    • Get Citation

      R L Hendricks, R J Epstein, T Tumpey; The effect of cellular immune tolerance to HSV-1 antigens on the immunopathology of HSV-1 keratitis.. Invest. Ophthalmol. Vis. Sci. 1989;30(1):105-115.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Previous studies have revealed that herpes simplex virus type 1 (HSV-1) corneal stromal lesions do not develop in the absence of a cell-mediated immune (CMI) response to HSV-1 antigens. HSV-1 glycoprotein C (gC) has been shown to play an important role in the induction of the cytotoxic T lymphocyte (CTL) response to HSV-1 infections at anatomical sites other than the eye. Here we report that a deletion mutant lacking gC (gC-39) when used to infect the corneas of A/J mice was a poor inducer of both CTL and delayed type hypersensitivity (DTH) responses. We have also followed histologically and immunohistochemically the course of HSV-1 stromal disease in A/J mice following topical corneal (TC) infection with wild type (WT) HSV-1, TC infection with gC-39 HSV-1, and simultaneous TC and anterior chamber (TC + AC) infection with WT HSV-1. The latter type of infection has been shown to induce a profound state of DTH and CTL tolerance of HSV-1 antigens. Following TC infection with WT HSV-1, stromal disease progressed to severe ulcerative keratitis with neovascularization by day 21. Histologic and immunohistochemical analysis revealed a predominantly mononuclear infiltrate consisting of numerous plasma cells as well as L3T4+ (T helper/inducer) and Lyt-2+ (T suppressor/cytotoxic) T lymphocytes. Following TC infection with gC-39, or simultaneous TC + AC infection with WT HSV-1, the severity of stromal disease did not progress beyond day 7. On day 21, there was at most a mild stromal cellular infiltrate consisting predominantly of polymorphonuclear neutrophils. These findings indicate that early stromal disease consists of a nonspecific inflammatory response, but severe stromal disease involves a CMI response to HSV-1. AC injection of HSV-1 inhibits the CMI response, thereby halting the progression of stromal disease. Similarly, gC-39, a poor inducer of CMI responses, is also a poor inducer of stromal disease.

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