在LPS诱导的类似自闭症的老鼠中,孕前升高的葡萄糖皮质激素通过GR-Id3 / E47依赖的星功能障碍破坏了社会行为
Binlin Yuan1, Xueli Xiang1, Ting Yang1
1Growth, Development and Mental Health Center of Children and Adolescents, Children's Hospital of Chongqing Medical University, Chongqing Key Laboratory of Child Neurodevelopment and Cognitive Disorders, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing 404100, China.
Biochemical pharmacology
|February 12, 2026
概括
怀孕期间产妇感染与自闭症谱系障碍 (ASD) 通过高葡萄糖皮质体 (GCs) 和GC-GR-Id3 / E47通路相关,影响胎儿神经发育和星功能.
科学领域:
- 神经科学是一个神经科学.
- 发展生物学 发展生物学
- 免疫学 免疫学 免疫学
背景情况:
- 怀孕期间母亲感染是自闭症谱系障碍 (ASD) 的潜在危险因素.
- 连接产前感染与胎儿神经发育障碍的确切机制,特别是涉及下丘脑-垂体-上腺 (HPA) 轴,仍然在很大程度上是未知的.
- 葡萄皮质醇 (GCs) 是应激反应的关键调解者,可以影响胎儿的发育.
研究的目的:
- 阐明怀孕期间母亲感染与后代发展自闭症类行为之间的机制联系.
- 确定特定的分子通路,包括GC-GR-Id3 / E47通路,参与调解产前感染对神经发育的影响.
- 探索潜在的治疗目标,以减轻产前侮辱对神经发育的影响.
主要方法:
- 整合人类队列分析与实验动物模型 (例如,怀孕小鼠的脂多糖暴露).
- 测量葡萄糖皮质激素水平和基因表达的分析 (例如,Id3,S100b) 和蛋白质相互作用 (Id3/E47复合体).
- 评估天体细胞分化,突触平衡 (谷氨酸/GABA) 和后代的行为表型.
主要成果:
- 产前感染,以脂聚糖 (LPS) 暴露为模式,导致胎儿葡萄皮糖 (GC) 激增.
- GC暴露上调了DNA结合3 (Id3) 的抑制剂,以一种依赖于GC受体 (GR) 的方式,与E47.7形成复合体.
- 这一途径破坏了星系细胞分化和突触谷氨酸/GABA稳态,导致了类似自闭症的行为,通过抑制GR信号或降低Id3.3的调节来挽救这些行为.
结论:
- GC-GR-Id3 / E47通路作为产前环境侮辱 (母亲感染) 和神经发育病理之间的关键机械联系,特别是导致ASD亚型.
- 异常的星分化和中断的突触平衡是这种通路激活的关键后果.
- 准GC-GR-Id3 / E47通路为预防或治疗与妊娠感染相关的神经发育缺陷提供了潜在的治疗策略.
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