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Related Experiment Videos

[Herpes simplex virus latency in the cornea].

Y Shimomura1, Y Mori, Y Inoue

  • 1Eye clinic, Osaka Rosai Hospital, Sakai, Japan.

Nippon Ganka Gakkai Zasshi
|August 1, 1990
PubMed
Summary
This summary is machine-generated.

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Herpes simplex virus type 1 (HSV-1) latency was identified in corneal tissue from patients with herpetic stromal keratitis. This finding suggests HSV-1 may proliferate from the cornea, potentially triggering ganglion reactivation.

Area of Science:

  • Ophthalmology
  • Virology
  • Immunology

Background:

  • Herpetic stromal keratitis is a significant cause of vision loss.
  • Recurrence of herpetic keratitis is often attributed to viral reactivation from neuronal ganglia.
  • The precise location of herpes simplex virus type 1 (HSV-1) latency in ocular infections remains debated.

Observation:

  • This study investigated HSV-1 latency in corneal tissue from patients with subsided herpetic stromal keratitis.
  • Corneal tissue samples were obtained during penetrating keratoplasty.
  • Infective HSV-1 was not detected in initial homogenates.

Findings:

  • Latent HSV-1 was successfully detected in corneal tissue cultures from 4 out of 8 patients.
  • This is the first study to demonstrate HSV-1 latency directly within the cornea.

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  • No infective virus was found in the initial corneal homogenates.

    • Implications:

    • The findings challenge the conventional ganglion trigger theory for herpetic keratitis recurrence.
    • Results suggest that HSV-1 latency in the cornea could initiate ganglion stimulation.
    • This provides a new perspective on the pathogenesis of recurrent herpetic stromal keratitis.