Th17-cells in depression: Implication in multiple sclerosis.

Area of Science:

• Neuroimmunology
• Psychoneuroimmunology
• Central Nervous System Diseases

Background:

• Depression is a common neuropsychological symptom in multiple sclerosis (MS).
• The bidirectional relationship between depression and MS course is not fully understood.
• Emerging evidence suggests shared immune mechanisms, including neuroinflammation, in the pathogenesis of both conditions.

Purpose of the Study:

• To review current literature on the role of neuroinflammation in the reciprocal influence between MS and depression.
• To highlight the specific involvement of T helper 17 (Th17) cells in the pathogenesis of both diseases.

Main Methods:

• Literature review of studies investigating immune mechanisms in depression and MS.
• Focus on research examining neuroinflammation and Th17 cell involvement.
• Analysis of data on the interplay between mood disorders and MS progression.

Main Results:

• Neuroinflammation, alongside biogenic amine disturbances, is implicated in depression pathogenesis.
• Th17 cells are critical players in the inflammatory processes of central nervous system diseases like MS.
• Evidence suggests Th17 cells may be a common pathogenetic link between MS and depression.

Conclusions:

• Neuroinflammation, particularly Th17 cell activity, may underlie the shared mechanisms of depression and multiple sclerosis.
• Understanding these immune pathways could offer new therapeutic targets for managing both conditions.