Histology and immunohistology of Igh-1-restricted herpes simplex keratitis in BALB/c congenic mice.
In order to characterize the local ocular immunologic milieu of Igh-1-restricted herpes simplex keratitis (HSK), we investigated histologic and immunohistologic correlates of disease over a 21-day time course. Clinically observable keratitis began 10 days postinoculation in susceptible C.AL-20 (Igh-1d) and moderately susceptible BALB/c (Igh-1a) mice, whereas HSV-1-resistant C.B-17 (Igh-1b) mice rarely developed disease. Igh-1-restricted histologic differences were observed by day 11 postinoculation; C.AL-20 and BALB/c mice showed augmented recruitment of neutrophils and mononuclear cells in conjunctival, limbal, and corneal tissues compared to C.B-17 mice. On immunohistologic study, Lyt-1 to Lyt-2 cell ratios by day 11 postinoculation were 7:1, 2:1, and 1:8 in corneas from C.AL-20, BALB/c, and C.B-17 mice, respectively. Macrophages and neutrophils were absent in corneas from C.B-17 mice at this time, but could be found in large numbers in the corneas of susceptible mouse strains through day 21. These data demonstrate a strong relationship between Igh-1 phenotype and inflammatory cell recruitment in response to corneal infection with HSV-1, and support a role for T cell subpopulations in mediating Igh-1-restricted HSK.[1]References
- Histology and immunohistology of Igh-1-restricted herpes simplex keratitis in BALB/c congenic mice. Opremcak, E.M., Rice, B.A., Wells, P.A., Foster, C.S. Invest. Ophthalmol. Vis. Sci. (1990) [Pubmed]
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