通过神经元胰岛素样生长因子-1传感血液外体,调节与自闭症相关的表型
Lei Chen1, Xi-Yue Xiong2, Tong-Tong Yao3
1Key Laboratory of Ethnomedicine of Ministry of Education, Center on Translational Neuroscience, School of Pharmacy, Minzu University of China, Beijing, China.
Pharmacological research
|October 18, 2023
概括
携带miR-29b-3p的外周血液外基因组可以通过抑制介质前额叶皮质 (mPFC) 中的IGF-1来诱导自闭症谱系障碍 (ASD) 行为. 这突出了ASD病理生理学的外体介导血脑通信.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 遗传学 遗传学是一种遗传学.
背景情况:
- 自闭症谱系障碍 (ASD) 涉及复杂的分子变化,特别是在前额头大脑区域.
- 外体细胞对细胞间通信至关重要,它们调解了外围系统如何影响大脑功能.
- 在ASD中,由脑细胞直接感知外周血液外体的研究正在进行中.
研究的目的:
- 为了调查外周血液外体是否直接影响大脑细胞,并有助于ASD发展.
- 探索外体衍生微RNAs在调节ASD中中枢前额皮层 (mPFC) 内基因表达中的作用.
主要方法:
- 从瓦尔酸诱导的ASD大鼠给小鼠的血清外体.
- RNA测序和生物信息学分析以识别外体微RNA及其标.
- 研究通过血脑屏障的外体体运输及其对mPFC基因表达的影响.
- 利用光遗传学和分子干预 (IGF-1,miR-29b-3p抑制) 来评估行为救援.
主要成果:
- 来自ASD大鼠的血清外基因组在小鼠中诱导了与ASD相关的表型.
- 从外基因组衍生的miR-29b-3p被确定为一个关键的调节器,抑制mPFC中的IGF-1.
- 富含miR-29b-3p的外体穿越了血脑屏障,影响了神经元IGF-1的表达.
- 光遗传刺激和分子干预在小鼠中挽救了与ASD相关的行为.
- 人类ASD血清外体诱导了小鼠的ASD行为,证实了外体介导的效应.
结论:
- 通过外体进行血脑交叉交谈在ASD病理生理学中至关重要.
- 大脑可以通过外体感知外周变化,特别是miR-29b-3p调节mPFC中的IGF-1.
- 外体体是ASD新型神经治疗的潜在目标.
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