大麻素CB2受体和对甲基胺过敏:易患精神分裂症的脆弱性
Ana Canseco-Alba1, Koichi Tabata2, Yukihiko Momoki2
1Laboratory of Reticular Formation Physiology, National Institute of Neurology and Neurosurgery, Mexico City 14269, Mexico; Department of Biology, William Paterson University, Wayne, NJ 07470, USA.
Progress in neuro-psychopharmacology & biological psychiatry
|December 22, 2023
概括
大麻素受体2 (CB2R) 在类似精神分裂症的行为中起作用. 用甲基胺治疗的CB2R基因淘汰小鼠表现出感觉运动门和社会相互作用的缺陷,这表明治疗潜力.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 遗传学 是一个遗传学.
背景情况:
- 大麻素受体2 (CB2R) 基因CNR2与精神分裂症有关.
- 过度多巴胺激素,一种过度多巴胺活性的状态,有助于精神分裂症.
- 多巴胺基神经元中的CB2R缺乏导致过度活跃和过度多巴胺基.
研究的目的:
- 为了研究CB2R在类似精神分裂症的表型中的直接作用,使用异合体Cnr2基因淘汰 (Het) 鼠标.
- 检查甲基胺 (MAP) 对黑特小鼠行为敏感性的影响.
- 探索神经元CB2R如何调节多巴胺活性和感官运动门,使用条件淘汰DAT-Cnr2-/-小鼠.
主要方法:
- 用MAP治疗Het小鼠以诱导行为敏感性.
- 在Het和野生型 (WT) 鼠中评估运动运动活性和脉冲前抑制 (%PPI).
- 评估MAP诱导的行为,包括刻板印象的行为,反向耐受 (RT),%PPI和DAT-Cnr2-/-小鼠的社交互动.
主要成果:
- 这些小鼠表现出对MAP诱导的过敏反应的反向耐受性 (RT) 和降低%PPI.
- DAT-Cnr2-/-小鼠对MAP诱导的刻板印象行为表现出更高的敏感性,并发展了RT.
- DAT-Cnr2-/-小鼠显示了PPI%的缺陷和改变的社交互动,表明了类似精神分裂症的症状.
结论:
- 神经CB2R与MAP治疗相互作用,在小鼠模型中增加了精神分裂症样行为的风险.
- 这些发现支持将CB2R作为潜在的精神分裂症治疗的向.
- 多巴胺活性的CB2R调节对于感觉运动门和与精神分裂症相关的社会行为至关重要.
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