Pathogenesis of varicelloviruses in primates

Area of Science:

• Virology and Immunology
• Primate Models of Human Disease

Background:

• Varicelloviruses, including human varicella-zoster virus (VZV) and simian varicella virus (SVV), cause primary varicella and establish lifelong latency in ganglionic neurons.
• VZV reactivation leads to herpes zoster, a significant cause of neurological disease in elderly and immunocompromised individuals.
• VZV species restriction limits in vivo pathogenesis studies, necessitating alternative models.

Purpose of the Study:

• To review recent studies on Varicellovirus infection in primates.
• To elucidate viral and host factors influencing primary infection, latency, and reactivation.
• To highlight the utility of SVV as a model for VZV pathogenesis research.

Main Methods:

• Review of recent scientific literature on Varicellovirus infections in primates.
• Analysis of virological, clinical, pathological, and immunological data from VZV and SVV studies.
• Comparative assessment of SVV infection in non-human primates as a model for human VZV disease.

Main Results:

• SVV infection in non-human primates closely mimics the virological, clinical, pathological, and immunological aspects of human VZV infection.
• Recent research has provided new insights into the virus and host factors governing the three stages of Varicellovirus infection.
• The SVV model facilitates a deeper understanding of varicella and herpes zoster pathogenesis in a natural host setting.

Conclusions:

• Simian varicella virus is an invaluable model for studying the pathogenesis of human varicella-zoster virus infection.
• Understanding virus-host interactions during primary infection, latency, and reactivation is crucial for disease management.
• Continued research using primate models will advance knowledge of Varicellovirus diseases.