Microglial response to aging and neuroinflammation in the development of neurodegenerative diseases
Tingting Han1, Yuxiang Xu1, Lin Sun1,2
1Institute for Brain Sciences Research, School of Life Sciences, Henan University, Kaifeng, Henan Province, China.
Abstract:
Cellular senescence and chronic inflammation in response to aging are considered to be indicators of brain aging; they have a great impact on the aging process and are the main risk factors for neurodegeneration. Reviewing the microglial response to aging and neuroinflammation in neurodegenerative diseases will help understand the importance of microglia in neurodegenerative diseases. This review describes the origin and function of microglia and focuses on the role of different states of the microglial response to aging and chronic inflammation on the occurrence and development of neurodegenerative diseases, including Alzheimer's disease, Huntington's chorea, and Parkinson's disease. This review also describes the potential benefits of treating neurodegenerative diseases by modulating changes in microglial states. Therefore, inducing a shift from the neurotoxic to neuroprotective microglial state in neurodegenerative diseases induced by aging and chronic inflammation holds promise for the treatment of neurodegenerative diseases in the future.
Insights
Cellular senescence and chronic inflammation drive brain aging and neurodegeneration. Modulating microglial states from neurotoxic to neuroprotective offers a promising therapeutic strategy for age-related neurodegenerative diseases.
Area of Science:
- Neuroscience
- Immunology
- Aging Research
Background:
- Cellular senescence and chronic inflammation are key indicators of brain aging.
- These factors significantly impact aging and are major risk factors for neurodegenerative diseases.
- Microglia play a crucial role in neuroinflammation and neurodegeneration.
Purpose of the Study:
- To review the microglial response to aging and neuroinflammation.
- To understand the importance of microglia in neurodegenerative diseases like Alzheimer's, Huntington's, and Parkinson's.
- To explore therapeutic strategies targeting microglial states.
Main Methods:
- Literature review focusing on microglial function and response to aging.
- Analysis of the role of different microglial states in neurodegenerative disease development.
- Examination of potential therapeutic benefits of modulating microglial states.
Main Results:
- Microglial states are significantly altered by aging and chronic inflammation.
- These altered states contribute to the occurrence and progression of neurodegenerative diseases.
- Modulating microglial states presents potential therapeutic avenues.
Conclusions:
- Shifting microglia from a neurotoxic to a neuroprotective state is a promising future treatment for neurodegenerative diseases.
- Targeting microglial responses to aging and inflammation can combat neurodegeneration.
- Understanding microglial dynamics is vital for developing effective therapies.
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