Kinetics of immune cell infiltration in vaccinia virus keratitis

Sharon Altmann, Megan Toomey, Brittany Nesbit, Kim McIntyre, Jill Covert, Richard Redd Dubielzig, Gary Leatherberry, Elizabeth Adkins, Christopher J Murphy, Curtis R. Brandt

Research output: Contribution to journalArticle

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Abstract

PURPOSE. Vaccinia virus keratitis leading to blindness is a severe complication of smallpox vaccination. The clinical manifestations of vaccinia virus keratitis are similar to those of herpes simplex virus keratitis, a well-studied immunopathologic disease. Vaccinia virus keratitis is likely to involve an immunopathologic component, but little is known about the pathogenesis of the disease. The goal of this study was to determine type and kinetics of immune cell infiltration in the cornea during vaccinia virus keratitis. METHODS. Rabbit eyes were trephined and inoculated with 1 × 105 pfu of the Dryvax strain of the vaccinia virus. On days 2, 4, 7, 10, 14, and 28 after infection, the animals were scored for clinical disease and eye sections were stained for B cells, CD4+ cells, CD8+ cells, and neutrophils. The eyelid, ciliary body, cornea, iris, iridocorneal angle, and choroid were examined. RESULTS. Corneal vaccinia virus challenge resulted in the infiltration of B cells, CD4+ cells, CD8+ cells, and neutrophils into the cornea and eyelids. Neutrophils were the predominant cell type on days 2 and 3 after infection, whereas CD4+ cells were the predominant cell type detected in corneas on days 4 through 10. CD8+ cells and B cells peaked on day 10, but at lower levels than CD4+ cells and neutrophils. CONCLUSIONS. These results suggest that sequential migration of neutrophils, then CD4+ cells, plays an important role in vaccinia virus keratitis.

Original languageEnglish (US)
Pages (from-to)4541-4548
Number of pages8
JournalInvestigative Ophthalmology and Visual Science
Volume51
Issue number9
DOIs
StatePublished - Sep 2010

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Keratitis
Vaccinia virus
Neutrophils
Cornea
B-Lymphocytes
Eyelids
Smallpox Vaccine
Herpetic Keratitis
Ciliary Body
Smallpox
Choroid
Eye Diseases
Iris
Simplexvirus
Blindness
Infection
Vaccination
Rabbits

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience
  • Medicine(all)

Cite this

Altmann, S., Toomey, M., Nesbit, B., McIntyre, K., Covert, J., Dubielzig, R. R., ... Brandt, C. R. (2010). Kinetics of immune cell infiltration in vaccinia virus keratitis. Investigative Ophthalmology and Visual Science, 51(9), 4541-4548. https://doi.org/10.1167/iovs.09-5107

Kinetics of immune cell infiltration in vaccinia virus keratitis. / Altmann, Sharon; Toomey, Megan; Nesbit, Brittany; McIntyre, Kim; Covert, Jill; Dubielzig, Richard Redd; Leatherberry, Gary; Adkins, Elizabeth; Murphy, Christopher J; Brandt, Curtis R.

In: Investigative Ophthalmology and Visual Science, Vol. 51, No. 9, 09.2010, p. 4541-4548.

Research output: Contribution to journalArticle

Altmann, S, Toomey, M, Nesbit, B, McIntyre, K, Covert, J, Dubielzig, RR, Leatherberry, G, Adkins, E, Murphy, CJ & Brandt, CR 2010, 'Kinetics of immune cell infiltration in vaccinia virus keratitis', Investigative Ophthalmology and Visual Science, vol. 51, no. 9, pp. 4541-4548. https://doi.org/10.1167/iovs.09-5107
Altmann S, Toomey M, Nesbit B, McIntyre K, Covert J, Dubielzig RR et al. Kinetics of immune cell infiltration in vaccinia virus keratitis. Investigative Ophthalmology and Visual Science. 2010 Sep;51(9):4541-4548. https://doi.org/10.1167/iovs.09-5107
Altmann, Sharon ; Toomey, Megan ; Nesbit, Brittany ; McIntyre, Kim ; Covert, Jill ; Dubielzig, Richard Redd ; Leatherberry, Gary ; Adkins, Elizabeth ; Murphy, Christopher J ; Brandt, Curtis R. / Kinetics of immune cell infiltration in vaccinia virus keratitis. In: Investigative Ophthalmology and Visual Science. 2010 ; Vol. 51, No. 9. pp. 4541-4548.
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N2 - PURPOSE. Vaccinia virus keratitis leading to blindness is a severe complication of smallpox vaccination. The clinical manifestations of vaccinia virus keratitis are similar to those of herpes simplex virus keratitis, a well-studied immunopathologic disease. Vaccinia virus keratitis is likely to involve an immunopathologic component, but little is known about the pathogenesis of the disease. The goal of this study was to determine type and kinetics of immune cell infiltration in the cornea during vaccinia virus keratitis. METHODS. Rabbit eyes were trephined and inoculated with 1 × 105 pfu of the Dryvax strain of the vaccinia virus. On days 2, 4, 7, 10, 14, and 28 after infection, the animals were scored for clinical disease and eye sections were stained for B cells, CD4+ cells, CD8+ cells, and neutrophils. The eyelid, ciliary body, cornea, iris, iridocorneal angle, and choroid were examined. RESULTS. Corneal vaccinia virus challenge resulted in the infiltration of B cells, CD4+ cells, CD8+ cells, and neutrophils into the cornea and eyelids. Neutrophils were the predominant cell type on days 2 and 3 after infection, whereas CD4+ cells were the predominant cell type detected in corneas on days 4 through 10. CD8+ cells and B cells peaked on day 10, but at lower levels than CD4+ cells and neutrophils. CONCLUSIONS. These results suggest that sequential migration of neutrophils, then CD4+ cells, plays an important role in vaccinia virus keratitis.

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