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New Target for Prevention and Treatment of Neuroinflammation: Microglia Iron Accumulation and Ferroptosis
Shunfeng Liu1,2, Xue Gao1,2, Shouhong Zhou2,3
1College of Pharmacy, 74716Guilin Medical College, Guilin, China.
Abstract:
Microglia play an important role in maintaining central nervous system homeostasis and are the major immune cells in the brain. In response to internal or external inflammatory stimuli, microglia are activated and release numerous inflammatory factors, thus leading to neuroinflammation. Inflammation and microglia iron accumulation promote each other and jointly promote the progression of neuroinflammation. Inhibiting microglia iron accumulation prevents neuroinflammation. Ferroptosis is an iron-dependent phospholipid peroxidation-driven type of cell death regulation. Cell iron accumulation causes the peroxidation of cell membrane phospholipids and damages the cell membrane. Ultimately, this process leads to cell ferroptosis. Iron accumulation or phospholipid peroxidation in microglia releases a large number of inflammatory factors. Thus, inhibiting microglia ferroptosis may be a new target for the prevention and treatment of neuroinflammation.
Insights
Inhibiting iron accumulation in microglia, the brain's immune cells, can prevent neuroinflammation. Targeting ferroptosis, a cell death pathway linked to iron, offers a new therapeutic strategy for brain inflammation.
Area of Science:
- Neuroscience
- Immunology
- Cell Biology
Background:
- Microglia are key immune cells in the central nervous system, crucial for brain homeostasis.
- Microglia activation releases inflammatory factors, leading to neuroinflammation.
- Neuroinflammation is exacerbated by the mutual promotion between inflammation and iron accumulation in microglia.
Purpose of the Study:
- To explore the role of iron accumulation and ferroptosis in microglia-mediated neuroinflammation.
- To investigate the potential of targeting microglial ferroptosis for neuroinflammation treatment.
Main Methods:
- Review of current literature on microglia function, iron metabolism, and ferroptosis.
- Analysis of the interplay between iron, inflammation, and cell death in the brain.
Main Results:
- Iron accumulation in microglia drives phospholipid peroxidation and cell death (ferroptosis).
- Microglial ferroptosis releases inflammatory factors, contributing to neuroinflammation.
- Inhibiting iron accumulation in microglia can prevent neuroinflammation.
Conclusions:
- Microglial ferroptosis is a significant contributor to neuroinflammation.
- Targeting microglial ferroptosis presents a promising therapeutic avenue for preventing and treating neuroinflammatory conditions.
