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CX3CR1 mediates motor dysfunction in mice through 5-HTR2a.
Jingchun Pei1, Yongwei Zou1, Cheng Wan2
1Department of Neurosurgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China.
Behavioural Brain Research
|December 25, 2023
Summary
Neuronal CX3CR1 deficiency impairs motor function by altering 5-HTR2a expression via the NF-κB pathway. Targeting CX3CR1 offers a new therapeutic approach for motor dysfunction.
Area of Science:
- Neuroscience
- Immunology
- Genetics
Background:
- CX3CR1 (chemokine receptor type 1) is known to regulate microglia function and motor deficits in disease models.
- The role of neuronal CX3CR1 in motor function under physiological conditions remains largely unexplored.
Purpose of the Study:
- To investigate the function of neuronal CX3CR1 in mediating motor dysfunction.
- To elucidate the molecular mechanisms underlying neuronal CX3CR1's effect on motor control.
Main Methods:
- Generation of CX3CR1 knockout mice.
- Behavioral tests including Rotarod and Open Field tests.
- Immunofluorescence, Immunohistochemistry, and Western blot analyses.
- Pharmacological inhibition of CX3CR1 using AZD8797.
Main Results:
- CX3CR1 knockout mice exhibited reduced motor capacity.
- CX3CR1 was confirmed to be expressed in neurons.
- Inhibition of CX3CR1 decreased the expression of 5-Hydroxytryptamine receptor 2a (5-HTR2a).
- CX3CR1 regulates 5-HTR2a expression through the NF-κB pathway.
Conclusions:
- Neuronal CX3CR1 plays a significant role in regulating motor function.
- Modulating neuronal CX3CR1 activity presents a potential therapeutic strategy for motor dysfunction.
