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Monocyte activation in multiple sclerosis
A T Reder1, K Genç, P V Byskosh
1Department of Neurology, University of Chicago, Illinois 60637, USA.
Abstract:
Monocytes, macrophages, and microglia have a central role in the CNS inflammation of MS. Monocytes are important in the earliest events in MS. Peripheral blood monocytes secrete prostaglandins before MS attacks. During clinical activity monocyte activation markers increase and IL-1 and TNF-alpha levels are elevated. Other monocyte products such as IL-10 reduce inflammation. IL-10 mRNA in MNC is increased during stable disease. Manipulation of monokine secretion and expression of monocyte surface proteins are reasonable approaches for immune therapy of MS.
Insights
Monocytes play a key role in central nervous system (CNS) inflammation in multiple sclerosis (MS). Targeting monocyte functions offers a promising avenue for developing effective immune therapies for MS patients.
Area of Science:
- Neuroimmunology
- Immunology
- Cellular Biology
Background:
- Monocytes, macrophages, and microglia are central to CNS inflammation in multiple sclerosis (MS).
- Monocytes are implicated in the early stages of MS pathogenesis.
- Peripheral blood monocytes release prostaglandins preceding MS attacks.
Purpose of the Study:
- To investigate the role of monocytes in MS pathogenesis.
- To explore the potential of manipulating monocyte functions for MS immune therapy.
Main Methods:
- Analysis of monocyte activation markers during clinical activity.
- Quantification of cytokine levels (IL-1, TNF-alpha, IL-10) in MS patients.
- Assessment of IL-10 mRNA expression in mononuclear cells (MNC) during stable disease.
Main Results:
- Monocyte activation markers and pro-inflammatory cytokines (IL-1, TNF-alpha) increase during MS clinical activity.
- Anti-inflammatory cytokine IL-10 and its mRNA are elevated during stable MS, suggesting a regulatory role.
- Peripheral blood monocytes secrete prostaglandins before MS attacks.
Conclusions:
- Monocyte activity and their secreted products significantly influence CNS inflammation in MS.
- Modulating monokine secretion and monocyte surface protein expression presents a viable strategy for MS immunotherapy.