The role of inflammasomes in vascular cognitive impairment

Area of Science:

• Neuroscience
• Pathophysiology
• Immunology

Background:

• Vascular Cognitive Impairment (VCI) is increasingly prevalent globally.
• Chronic Cerebral Hypoperfusion (CCH) is implicated in VCI onset and progression.
• Neuroinflammation, marked by elevated interleukin-1β (IL-1β), is a key VCI contributor.

Purpose of the Study:

• To comprehensively review the molecular and cellular mechanisms of CCH-induced inflammasome signaling in VCI.
• To elucidate the role of inflammasomes (NLRP3, AIM2) in regulating IL-1β production under CCH.
• To highlight the importance of understanding neuroinflammation for developing VCI treatments.

Main Methods:

• Literature review focusing on CCH, VCI, neuroinflammation, and inflammasome pathways.
• Analysis of studies investigating NLRP3 and AIM2 inflammasome activation.
• Synthesis of current knowledge on molecular and cellular mechanisms.

Main Results:

• CCH activates inflammasome signaling pathways, including NLRP3 and AIM2.
• Activated inflammasomes critically regulate IL-1β production, exacerbating neuroinflammation.
• Neuroinflammation is an early event in VCI pathogenesis, linked to CCH.

Conclusions:

• Inflammasome activation is a central mechanism in CCH-induced VCI pathophysiology.
• Targeting inflammasome signaling offers a potential therapeutic strategy for VCI.
• Further research into these pathways is crucial for mitigating brain damage and cognitive deficits.