Microtubule Regulation and Function during Virus Infection

Area of Science:

• Cell Biology
• Virology
• Cytoskeleton Dynamics

Background:

• Microtubules (MTs) are dynamic cytoskeletal filaments crucial for intracellular transport, organelle organization, and cell shape.
• MTs nucleate from organizing centers and exhibit growth, pause, and catastrophe phases, adapting to the cellular environment.
• Specialized MT-associated proteins (MAPs) and plus-end-tracking proteins (+TIPs) regulate MT behavior and organization.

Purpose of the Study:

• To review the role of microtubule (MT) filaments themselves in viral intracellular transport and infection.
• To highlight how viruses manipulate MTs and their regulatory proteins for replication and spread.
• To explore how virus- or host-induced changes in MTs affect infection outcomes.

Main Methods:

• Literature review focusing on the interaction between viruses and microtubule filaments.
• Analysis of how viral pathogens utilize the host cell's microtubule network.
• Examination of the regulatory mechanisms governing MT dynamics in the context of viral infection.

Main Results:

• Viruses utilize MTs as tracks for intracellular transport of viral particles to replication sites.
• Viral and host factors can alter MT organization and dynamics, influencing viral lifecycle.
• Changes in MT stability and spatial arrangement are critical for efficient viral replication and dissemination.

Conclusions:

• Microtubule filaments are essential components of the viral intracellular lifecycle, beyond their motor protein interactions.
• Understanding MT dynamics and regulation by viruses offers insights into novel antiviral strategies.
• The interplay between viruses and the host MT network significantly impacts infection progression and outcome.