Inflammation, immunity, and Alzheimer's disease

Area of Science:

• Neuroscience
• Immunology
• Pathobiology

Background:

• Explores the intersection of inflammation, immunity, and Alzheimer's disease (AD) pathobiology.
• Reviews nearly three decades of research, from early epidemiologic studies to current immunotherapy approaches.
• Highlights the evolving understanding of the immune system's role in AD etiology and progression.

Discussion:

• Examines the complex interplay between inflammatory processes and AD disease biology.
• Discusses the involvement of innate immune cells, such as microglia and peripheral mononuclear phagocytes, in AD.
• Considers the etiological and therapeutic implications of immune system dysregulation in AD.

Key Insights:

• Early studies suggested an inverse relationship between AD risk and non-steroidal anti-inflammatory drug use.
• Recent advancements focus on immunotherapy and the specific roles of innate immune cells in AD.
• The timing and nature of immune responses in AD remain critical areas of investigation.

Outlook:

• Identifies remaining questions regarding the precise role and timing of immune/inflammatory responses in AD.
• Suggests potential therapeutic windows for immune-based interventions in AD.
• Emphasizes the need for further research to clarify how and when to intervene therapeutically.