Molecular interplay between oxidative and endoplasmic reticulum stress in multiple sclerosis

Area of Science:

• Neuroscience
• Immunology
• Cellular Biology

Background:

• Multiple sclerosis (MS) involves immune-mediated CNS damage, causing myelin loss and nerve impairment.
• Oxidative stress and endoplasmic reticulum (ER) stress are increasingly recognized as critical factors in MS.
• These stresses contribute to neuroinflammation and neurodegeneration, accelerating disease progression.

Purpose of the Study:

• To review the current understanding of oxidative and ER stress in MS.
• To explore the bidirectional relationship between these two stress pathways.
• To discuss potential therapeutic strategies targeting these mechanisms.

Main Methods:

• Literature review and synthesis of current research findings.
• Analysis of the molecular mechanisms linking oxidative and ER stress in CNS pathology.
• Evaluation of emerging therapeutic interventions for MS.

Main Results:

• Oxidative stress, driven by excessive reactive oxygen species (ROS), damages neural cells and worsens mitochondrial dysfunction.
• ER stress, triggered by protein misfolding, can lead to apoptosis, particularly affecting oligodendrocytes and axons.
• A bidirectional interplay exists: oxidative stress disrupts ER function, and ER stress generates ROS, amplifying neuroinflammation and neurodegeneration.

Conclusions:

• The synergistic effects of oxidative and ER stress are central to MS pathogenesis.
• Targeting these pathways with ROS scavengers, ER stress alleviators, or UPR regulators shows therapeutic promise.
• Further research into their intricate relationship may reveal novel treatment strategies to modify MS progression.