The pathogenesis of Epstein-Barr virus persistent infection

Area of Science:

• Virology
• Immunology
• Mathematical Biology

Background:

• Epstein-Barr virus (EBV) establishes lifelong infections in humans.
• The germinal center model (GCM) describes EBV-infected B cells transiting germinal centers (GCs) to become resting memory cells.
• The GCM is the established framework for understanding EBV biology and lymphoma pathogenesis.

Purpose of the Study:

• To re-evaluate the established germinal center model (GCM) for Epstein-Barr virus (EBV) persistence.
• To investigate the role of viral quiescence versus the infection cycle in maintaining EBV presence.
• To incorporate insights from mathematical modeling into the understanding of EBV persistence.

Main Methods:

• Review and synthesis of existing literature on EBV infection dynamics.
• Analysis of mathematical models predicting EBV persistence mechanisms.
• Comparison of proposed modifications to the GCM with observed EBV biology.

Main Results:

• Evidence suggests EBV's contribution to the germinal center (GC) process is modest.
• Mathematical models indicate viral quiescence in memory B cells is not essential for EBV persistence.
• The cyclical infection process is identified as the primary driver of EBV persistence at low levels.

Conclusions:

• The traditional GCM requires modification to accurately reflect EBV persistence.
• Viral persistence is primarily driven by the continuous cycle of infection, not solely by quiescent states.
• Understanding the infection cycle is crucial for comprehending EBV's lifelong presence and associated diseases.