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Mycophenolic acid inhibits replication of Japanese encephalitis virus

Liba Sebastian1, Shampur Narayan Madhusudana, Vasanthapuram Ravi

  • 1Department of Neurovirology, National Institute of Mental Health and Neuro Sciences, Bangalore, India.

Chemotherapy
|February 2, 2011
PubMed
Abstract

Insights

Mycophenolic acid demonstrates significant antiviral activity against Japanese encephalitis virus (JEV). This compound effectively inhibited JEV replication in vitro and protected mice in vivo, offering potential therapeutic benefits.

Area of Science:

  • Virology
  • Immunology
  • Pharmacology

Background:

  • Japanese encephalitis (JE) poses a significant public health threat in Asia.
  • Current treatment options for JE are limited, with no effective antiviral drugs available.

Purpose of the Study:

  • To evaluate the antiviral efficacy of mycophenolic acid against Japanese encephalitis virus (JEV).
  • To assess the therapeutic potential of mycophenolic acid in a JEV mouse model.

Main Methods:

  • In vitro assays including cytopathic effect inhibition, plaque reduction, and virus yield reduction were performed.
  • In vivo therapeutic potential was investigated using a mouse model challenged with JEV.

Main Results:

  • Mycophenolic acid exhibited significant antiviral activity against JEV in vitro, with an IC50 of 3.1 μg/ml.
  • In vivo studies showed a therapeutic index of 16 and 75% protection against lethal JEV challenge.
  • The compound demonstrated a notable reduction in JEV replication.

Conclusions:

  • Mycophenolic acid effectively inhibits Japanese encephalitis virus replication.
  • The compound provides significant protection in a mouse model, indicating therapeutic potential for JE treatment.

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