Amyotrophic lateral sclerosis: a neurovascular disease

Area of Science:

• Neuroscience
• Pathology
• Vascular Biology

Background:

• Amyotrophic lateral sclerosis (ALS) is a severe neurodegenerative disease with complex pathogenesis.
• Evidence implicates the neurovascular unit, including the blood-brain and blood-spinal cord barriers (BBB/BSCB), in ALS pathology.
• ALS is increasingly recognized as a neurovascular disease due to BBB/BSCB dysfunction.

Purpose of the Study:

• To provide an updated analysis of the normal and impaired BBB/BSCB in the context of ALS.
• To focus on the specific alterations of the BBB/BSCB in ALS patients and models.
• To explore potential therapeutic strategies targeting microvascular pathology in ALS.

Main Methods:

• Review of existing experimental and clinical studies on BBB/BSCB in ALS.
• Analysis of cellular components, tight junctions, and transport systems of the BBB/BSCB.
• Examination of cell interactions, cytokines, matrix metalloproteinases, and free radicals in BBB/BSCB disruption.

Main Results:

• The BBB/BSCB is significantly impaired in ALS, affecting its integrity and function.
• Specific molecular and cellular mechanisms contributing to BBB/BSCB disruption in ALS are identified.
• Evidence from both preclinical models and human studies supports the role of BBB/BSCB dysfunction in ALS progression.

Conclusions:

• The BBB/BSCB represents a critical area of research for understanding ALS pathogenesis.
• Microvascular pathology is a key feature of ALS, offering potential therapeutic targets.
• Further investigation into BBB/BSCB mechanisms may lead to novel treatment strategies for ALS.