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A P2RY12 Deficiency Results in Sex-specific Cellular Perturbations and Sexually Dimorphic Behavioral Anomalies
Ogochukwu J Uweru1, Kenneth A Okojie1, Aparna Trivedi1
1University of Virginia.
Research Square
|March 18, 2024
Summary
Microglia exhibit sex differences, particularly in P2RY12 receptor expression, impacting neuronal interactions. Genetic deletion of P2RY12 causes sex-specific effects on microglia, neurons, and behavior in female mice.
Area of Science:
- Neuroscience
- Immunology
- Genetics
Background:
- Microglia, the brain's immune cells, are sexually dimorphic, but this is often overlooked in research.
- Microglial-neuronal interactions are dynamic but poorly understood concerning sex differences.
Approach:
- Focused on P2RY12, a key microglial gene mediating microglial-neuronal interactions.
- Compared P2RY12 expression and the effects of its genetic deletion in male and female adult mice.
- Assessed cellular changes in microglia and neurons, alongside behavioral analysis.
Key Points:
- Adult female microglia show significantly higher P2RY12 receptor expression than adult males.
- Genetic deletion of P2RY12 induced more severe sex-specific cellular perturbations in females.
- Female mice lacking P2RY12 displayed unique behavioral anomalies absent in males.
Conclusions:
- P2RY12 plays a critical, sex-specific role in microglial-neuronal interactions.
- Findings highlight the importance of considering sex in neuroscientific research and CNS disease mechanisms.
- This study provides novel insights into basal microglial function and its sex-specific regulation.
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