在副腹腔核中CD38介导的催产素信号传递有助于同情性疼痛
Xinying Zhang1, Zifeng Wu2, Siqi Yang2
1Department of Anesthesiology, The People's Hospital of Rugao, Rugao Hospital Affiliated to Nantong University, Rugao, 226500, China; Department of Anesthesiology and Perioperative Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
Neuropharmacology
|January 15, 2025
概括
看到另一只老鼠的疼痛会引起旁观者的疼痛和焦虑. 这种同情性疼痛反应是由前腹腔核 (PVN) 中的CD38-oxytocin信号传递介导的,突出了一个新的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 社会神经科学是一种社会神经科学.
- 行为神经科学 行为神经科学
背景情况:
- 共感对于社会互动和感知情绪至关重要.
- 共感性疼痛,即观察疼痛会引起旁观者的疼痛,其潜在机制尚不清楚.
- 之前的研究表明,副腹腔核 (PVN) 参与了情绪和疼痛处理.
研究的目的:
- 为了研究同情性疼痛的神经机制.
- 确定CD38和催产素在同情性疼痛期间在PVN中的作用.
- 探索调节同理心疼痛反应的潜在治疗点.
主要方法:
- 观察旁观者小鼠的行为和生理变化,这些小鼠接触到经历疼痛的小鼠.
- 在PVN中测量CD38表达和催产素水平.
- 使用光纤测量和化学遗传学来记录和操纵PVN神经元活动.
- 将野生类型的小鼠与CD38淘汰赛 (CD38KO) 的小鼠进行比较.
主要成果:
- 当旁观者小鼠接触到疼痛的小鼠时,他们表现出疼痛值降低和焦虑类行为.
- 在同情性疼痛期间,PVN中的CD38表达和催产素水平被上调.
- 化学遗传抑制PVN神经元减轻了同情性疼痛,而激活则加剧了它.
- CD38KO小鼠没有表现出这些同情性疼痛或焦虑反应,OXT上调被阻止.
结论:
- 在PVN中CD38介导的催产素信号传递对同情性疼痛至关重要.
- 在PVN中的CD38-OXT系统激活PVN神经元,导致过敏和焦虑.
- 这一途径代表了旨在修改同情行为的干预措施的潜在目标.
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