Glymphatic system: a gateway for neuroinflammation

Area of Science:

• Neuroscience
• Immunology
• Physiology

Background:

• The glymphatic system facilitates brain fluid exchange and waste clearance.
• Glymphatic system dysfunction is linked to central nervous system (CNS) disorders and systemic diseases.
• Systemic inflammation can trigger CNS inflammation, potentially causing sustained damage.

Purpose of the Study:

• To review current knowledge on glymphatic dysfunction and CNS inflammation.
• To explore the hypothesis linking peripheral inflammation, glymphatic system overload, and neuroinflammation.
• To highlight the glymphatic system's role in neuroinflammatory processes.

Main Methods:

• Literature review of studies on glymphatic function, systemic diseases, and neuroinflammation.
• Synthesis of evidence connecting peripheral inflammation to CNS inflammatory responses.
• Discussion of the proposed mechanisms of glymphatic system impairment.

Main Results:

• Accumulating evidence shows glymphatic impairment in various CNS and systemic conditions.
• Systemic inflammation can compromise glymphatic function, initiating CNS dysfunction.
• Glymphatic dysfunction is associated with chronic neuroinflammation and neurodegeneration.

Conclusions:

• Glymphatic system dysfunction plays a critical role in the development of neuroinflammation.
• Peripheral inflammation-induced glymphatic overload may drive neurodegeneration.
• Targeting the glymphatic system offers potential therapeutic strategies for CNS disorders.