一个单一的皮质糖类药物反应元素以性别特定的方式调节社交能力
Brian F Corbett1,2,3, Jay Arner1, Sandra Luz1
1Center for Stress Neurobiology, Children's Hospital of Philadelphia, Philadelphia, PA, USA.
Molecular psychiatry
|August 25, 2025
概括
葡萄糖皮质体受体 (GRs) 调节素-1-酸盐受体3 (S1PR3) 以减少炎症并促进社会性. 破坏S1PR3附近的GR结合部位会损害这些应激应对机制,特别是在雌性体内.
科学领域:
- 神经科学
- 分子生物学
- 行为科学
背景情况:
- 葡萄糖皮质受体 (GRs) 对于调节炎症反应,神经元功能和行为至关重要.
- 针对这些影响的GR的特定基因组位置仍然不完全理解.
- 素-1-酸盐受体3 (S1PR3) 参与炎症和行为过程.
研究的目的:
- 研究S1PR3基因附近的GR结合部位在调解压力反应和社会行为的作用.
- 确定破坏这种GR结合点的性别特异性影响.
- 阐明GR-S1PR3相互作用的神经机制.
主要方法:
- 使用CRISPR/ Cas9基因编辑删除大鼠S1PR3基因附近的GR结合部位 (S1PR3GRE-/ GRE-).
- 社会失败压力范式被用来评估行为和炎症反应.
- 测量了神经活动连贯性 (LC) 和中部前额皮层 (mPFC).
- 使用化学基因操纵来抑制LC神经元向mPFC投射.
主要成果:
- 与野生类型对照者相比,S1PR3GRE/GRE男性在社会失败后表现出炎症标志物增加和社交能力降低.
- 非压力S1PR3GRE-/GRE-的女性表现出类似的炎症和行为缺陷,这表明女性对GR-S1PR3调节的依赖程度更高.
- 在被击败的S1PR3GRE-/ GRE-男性和非压力S1PR3GRE-/ GRE-女性中观察到LC和mPFC之间的连贯神经活动增加.
- 在击败过程中抑制mPFC投射LC神经元增强了WT和S1PR3GRE-/GRE-男性的社交互动.
结论:
- 通过GR调节S1PR3对于缓解炎症过程和促进对社会压力的抵抗力至关重要.
- 这种机制涉及LC和mPFC之间连贯的神经活动的调节.
- 在S1PR3附近的GR结合部位的破坏损害了应激抵抗力,在女性中观察到更明显的效果,突出显示了与压力相关的疾病的潜在治疗标.
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