Neuroinflammation: Ways in Which the Immune System Affects the Brain

Area of Science:

• Neuroscience
• Immunology
• Neurology

Background:

• Neuroinflammation is a key feature of all central nervous system (CNS) diseases, involving microglial cells, astrocytes, and cytokine signaling.
• The CNS immune response can be both beneficial, as in development, and detrimental, contributing to neuropathology.

Purpose of the Study:

• This review examines the roles of diverse cell types in immune dysregulation within neuroinflammation.
• It explores the contributions of microglia and B cells to CNS diseases.

Main Methods:

• Literature review of cellular and molecular mechanisms in neuroinflammation.
• Analysis of the interplay between different immune cells in the CNS.

Main Results:

• Microglia play crucial roles in both healthy and diseased CNS environments from early development.
• B-cell diversity impacts CNS diseases via antibody-dependent and -independent pathways, influencing myeloid and T cells.

Conclusions:

• Immune dysregulation involving various cell types is central to neuroinflammation.
• Insights into these mechanisms provide potential therapeutic targets for neurological disorders.