The choroid plexus: a command center for brain-body communication during inflammation.

Area of Science:

• Neuroimmunology
• Neuroscience
• Cell Biology

Background:

• The choroid plexus (ChP) epithelium is a critical interface regulating brain-body communication during neuroinflammation.
• It functions as a physical barrier and a gateway for immune cell entry into the central nervous system (CNS).
• Understanding ChP's role is essential for managing immune responses in the brain.

Purpose of the Study:

• To contextualize new findings with established ChP functions in CSF secretion and blood-CSF barrier regulation.
• To explore the collaborative role of immune and nonimmune cells within the ChP during CNS defense.
• To discuss the implications of ChP function in neurologic disease and potential therapeutic strategies.

Main Methods:

• Review and contextualization of recent research on ChP during brain inflammation.
• Analysis of ChP's core functions: CSF secretion and blood-CSF barrier regulation.
• Discussion of immune and nonimmune cell collaboration at the ChP interface.

Main Results:

• The ChP is identified as a collaborative organ where diverse cells work together to defend the CNS.
• Pertinent mechanisms of ChP function during neuroinflammation are discussed.
• Implications for the etiology and treatment of neurologic diseases are highlighted.

Conclusions:

• The choroid plexus is a dynamic neuroimmune interface crucial for CNS defense during inflammation.
• Further research into ChP mechanisms can inform novel therapeutic approaches for neuroinflammatory conditions.
• Outstanding questions and technological advancements are needed to fully understand ChP's role in infection, injury, and aging.