Astrocytes: a central element in neurological diseases

Area of Science:

• Neuroscience
• Cell Biology
• Pathology

Background:

• Historically, the neurone-centric view minimized astroglia's role in neurological disease pathogenesis.
• Emerging evidence highlights astrocytes' critical functions in both healthy and diseased central nervous system (CNS) states.

Purpose of the Study:

• To review the diverse roles of astrocytes in the healthy CNS.
• To discuss the varied responses of astroglia in neurological disorders.
• To explore the therapeutic potential of targeting astrocytes for CNS diseases.

Main Methods:

• Literature review of studies on astrocyte function and reactivity.
• Analysis of signaling mechanisms influencing astrocyte responses.
• Examination of astrogliosis in various neurological conditions.

Main Results:

• Astrocyte responses (astrogliosis) are context-specific, ranging from beneficial to detrimental.
• Disrupted astrocyte function (astrocytopathies) can be a primary cause of neurological dysfunction.
• Reactive astrocytes play crucial roles in tissue repair and function maintenance in CNS pathologies.

Conclusions:

• Astrocytes are integral to CNS health and disease.
• Targeting astrocytes presents a viable therapeutic avenue for conditions including Alexander disease, neurotrauma, stroke, epilepsy, and Alzheimer's disease.