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- Title
The mechanisms of white matter injury and immune system crosstalk in promoting the progression of Parkinson's disease: a narrative review.
- Authors
Wen Ma; Yifan Geng; Youhan Liu; Huixin Pan; Qinglu Wang; Yaohua Zhang; Liping Wang
- Abstract
Parkinson's disease (PD) is neurodegenerative disease in middle-aged and elderly people with some pathological mechanisms including immune disorder, neuroinflammation, white matter injury and abnormal aggregation of alphasynuclein, etc. New research suggests that white matter injury may be important in the development of PD, but how inflammation, the immune system, and white matter damage interact to harm dopamine neurons is not yet understood. Therefore, it is particularly important to delve into the crosstalk between immune cells in the central and peripheral nervous system based on the study of white matter damage in PD. This crosstalk could not only exacerbate the pathological process of PD but may also reveal new therapeutic targets. By understanding how immune cells penetrate through the blood-brain barrier and activate inflammatory responses within the central nervous system, we can better grasp the impact of structural destruction of white matter in PD and explore how this process can be modulated to mitigate or combat disease progression. Microglia, astrocytes, oligodendrocytes and peripheral immune cells (especially T cells) play a central role in its pathological process where these immune cells produce and respond to pro-inflammatory cytokines such as tumor necrosis factor (TNF-α), interleukin-1β(IL-1β) and interleukin-6(IL-6), and white matter injury causes microglia to become pro-inflammatory and release inflammatory mediators, which attract more immune cells to the damaged area, increasing the inflammatory response. Moreover, white matter damage also causes dysfunction of blood-brain barrier, allows peripheral immune cells and inflammatory factors to invade the brain further, and enhances microglia activation forming a vicious circle that intensifies neuroinflammation. And these factors collectively promote the neuroinflammatory environment and neurodegeneration changes of PD. Overall, these findings not only deepen our understanding of the complexity of PD, but also provide new targets for the development of therapeutic strategies focused on inflammation and immune regulation mechanisms. In summary, this review provided the theoretical basis for clarifying the pathogenesis of PD, summarized the association between white matter damage and the immune cells in the central and peripheral nervous systems, and then emphasized their potential specific mechanisms of achieving crosstalk with further aggravating the pathological process of PD.
- Subjects
BRAIN physiology; PERIPHERAL nervous system; T cells; NEURONS; BLOOD-brain barrier; NEUROGLIA; PARKINSON'S disease; IMMUNE system; NEUROINFLAMMATION; NEURODEGENERATION; CENTRAL nervous system; WHITE matter (Nerve tissue); DISEASE progression; IMMUNOLOGIC diseases; TUMOR necrosis factors; INTERLEUKINS; ACTIVE aging; DISEASE complications; MIDDLE age; OLD age
- Publication
Frontiers in Aging Neuroscience, 2024, p1
- ISSN
1663-4365
- Publication type
Article
- DOI
10.3389/fnagi.2024.1345918