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Porcine Corneal Tissue Explant to Study the Efficacy of Herpes Simplex Virus-1 Antivirals
08:31

Porcine Corneal Tissue Explant to Study the Efficacy of Herpes Simplex Virus-1 Antivirals

Published on: September 20, 2021

[Experimental study of suppression of reactivation of herpes simplex virus type 1 by cyclooxygenase 2 inhibitor with

Yuan Xia1, Zhen-Ping Huang, Fei Ma

  • 1Department of Ophthalmology, Nanfing General Hospital of Nanjing Military Command, PMA, Nanjing 210002, China. linda_xia@21cn.com

[Zhonghua Yan Ke Za Zhi] Chinese Journal of Ophthalmology
|August 8, 2008
PubMed
Abstract

Insights

A selective cyclooxygenase 2 (COX-2) inhibitor suppresses herpes virus reactivation. Combining this inhibitor with acyclovir did not significantly improve results for herpes virus reactivation, offering a new prevention method for herpetic simplex keratitis (HSK).

Area of Science:

  • Virology
  • Immunology
  • Pharmacology

Context:

  • Herpes Simplex Virus type 1 (HSV-1) reactivation can cause significant ocular morbidity, such as herpetic simplex keratitis (HSK).
  • UV-B radiation is a known trigger for HSV-1 reactivation.
  • Current treatments for HSV-1 reactivation often involve antiviral medications like acyclovir.

Purpose:

  • To investigate the efficacy of a selective cyclooxygenase 2 (COX-2) inhibitor, lornoxicam, in blocking UV-B-induced herpes virus reactivation.
  • To determine if combining lornoxicam with acyclovir enhances the inhibition of herpes virus reactivation compared to monotherapy.

Summary:

  • An experimental study in mice demonstrated that lornoxicam significantly suppressed HSV-1 reactivation in both the cornea and trigeminal ganglia after UV-B exposure.
  • While both lornoxicam and acyclovir monotherapy reduced viral shedding, their combination did not show a statistically significant enhancement in inhibiting reactivation in the cornea.
  • However, the combination therapy showed a significant benefit in suppressing viral reactivation within the trigeminal ganglia compared to lornoxicam alone.

Impact:

  • These findings suggest that selective COX-2 inhibitors represent a potential therapeutic strategy for preventing herpes virus reactivation.
  • The study provides a novel approach for managing and preventing recurrent herpetic simplex keratitis (HSK).
  • Further research may explore optimizing combination therapies for enhanced efficacy in specific anatomical sites.

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