Acquired immunity and Alzheimer's disease

Area of Science:

• Neuroscience
• Immunology

Background:

• Alzheimer's disease (AD) is a neurodegenerative disorder marked by cognitive decline.
• While central immunity (microglia) is studied, peripheral immunity's role in AD is less understood.
• Recent discoveries highlight acquired immunity's importance in brain homeostasis and neurodegeneration.

Purpose of the Study:

• To review the pathophysiological roles of T cells and B cells in Alzheimer's disease.
• To synthesize current understanding of peripheral immune system involvement in AD.

Main Methods:

• Systematic review of recent scientific literature.
• Analysis of studies investigating T cell and B cell functions in AD models and patients.

Main Results:

• T cells modulate neuronal and glial functions and aid in beta-amyloid (Aβ) clearance.
• B cells contribute to Aβ clearance through antibody-dependent and independent mechanisms.
• Peripheral immune cells influence central nervous system homeostasis in AD.

Conclusions:

• T cells and B cells are integral to AD pathogenesis and progression.
• Understanding peripheral immune roles offers new therapeutic avenues for AD.
• Further research into acquired immunity in AD is warranted.