Varicella zoster virus (VZV)-human neuron interaction.

Area of Science:

• Virology
• Neuroscience
• Immunology

Background:

• Varicella zoster virus (VZV) is a human herpesvirus causing chickenpox and shingles.
• VZV establishes lifelong latency in ganglionic neurons.
• Reactivation of VZV leads to neurological and ocular complications, but triggers remain unknown.

Purpose of the Study:

• To investigate the VZV-neuron interaction during latency and reactivation.
• To identify molecular triggers for VZV reactivation.
• To develop in vitro systems for studying VZV latency and reactivation.

Main Methods:

• Infection of human neurons in SCID mice.
• Infection of human stem cells, including induced pluripotent stem cells.
• Infection of human neural progenitor tissue-like assemblies.
• Analysis of VZV-infected, terminally differentiated human neurons.

Main Results:

• VZV infection of human neurons and stem cells can be established without cytopathic effects.
• Recent studies show promise in modeling VZV infection in vitro.
• Further analysis of pure, differentiated neurons is needed to understand reactivation.

Conclusions:

• Current in vitro systems are advancing the study of VZV latency and reactivation.
• Understanding the VZV-neuron interaction is crucial for preventing shingles and associated neurological disorders.
• Further research using advanced neuronal models is required to elucidate VZV reactivation mechanisms.