前额前氧化受体阳性细胞在结核性硬化综合体中调解压力诱导的焦虑
Olivia Tabaka1, Saheed Lawal1, Rodrigo Del Rio Triana2
1Department of Neurobiology & Behavior, Stony Brook University, Stony Brook, NY, USA.
Communications biology
|November 20, 2025
概括
结核性硬化综合体 (TSC) 相关的焦虑通过向氧化受体表达细胞 (OTRC) 中的TSC-Rheb-PERK通路而减少. 这种方法使大脑功能和行为正常化,提供了潜在的治疗策略.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 病理性焦虑在结核性硬化综合体 (TSC) 中很常见,这是一种神经发育障碍.
- TSC是由Tsc1/Tsc2基因的突变引起的,影响细胞过程.
- 催产素受体表达细胞 (OTRCs) 在压力和焦虑中发挥作用.
研究的目的:
- 研究将Tsc2突变与TSC中的焦虑联系在一起的机制.
- 模拟OTRC中的Tsc2哈普洛缺陷,以了解其对大脑功能和行为的影响.
- 探索TSC-Rheb-PERK轴在性别特定的压力脆弱性.
主要方法:
- 在催产素受体表达细胞 (OTRCs) 中建模的 Tsc2 哈普洛缺陷.
- 利用条件基因删除和药理干预措施.
- 在雄性和雌性小鼠中评估了类似焦虑的行为,动机和中间前额叶皮层 (mPFC) 电路活动.
- 在mPFC内的OTRC中操纵Rheb.
主要成果:
- 在OTRC中Tsc2的缺失导致mTORC1和PERK介导的综合应激反应 (ISR) 过度激活,损害蛋白质合成和抑制mPFC电路.
- 男性突变者在压力下表现出焦虑,动机减少和mPFC低活性.
- 女人表现出对动机缺陷的弹性,但减少了社会偏好.
- 在mPFC中,药理性PERK抑制和OTRC特异的Rheb操纵恢复了正常行为和mPFC刺激性.
结论:
- 在TSC的背景下,TSC-Rheb-PERK轴调节性别特异性的压力脆弱性.
- 在OTRC中调节综合应激反应是一种潜在的治疗策略,用于治疗与TSC前额功能障碍相关的焦虑.
- 研究结果强调了OTRC和ISR在TSC相关焦虑中的重要性.
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