微生物群-肠-大脑轴的单细胞划分:益生菌干预Chd8素不足小鼠中的益生菌干预
Peifeng Ji1, Ning Wang2, You Yu1
1Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
Cell genomics
|February 6, 2025
概括
这项研究揭示了特定基因突变如何影响大脑和肠道发育,影响自闭症谱系障碍 (ASD) 模型中的社会行为. 益生菌治疗显示出拯救这些社会赤字的希望.
科学领域:
- 神经科学是一个神经科学.
- 微生物学 微生物学
- 遗传学 遗传学 是一个
背景情况:
- 微生物群-肠-大脑轴对神经系统功能至关重要.
- 自闭症谱系障碍 (ASD) 涉及复杂的遗传和环境因素.
- 对于ASD中宿主肠道微生物群相互作用的理解有限.
研究的目的:
- 为了研究CHD8哈普洛缺陷在ASD病变发生中的作用.
- 使用单细胞转录基因方法探索宿主-肠道微生物群相互作用.
- 确定与自闭症相关的社会缺陷的潜在治疗目标.
主要方法:
- 为ASD生成了一个CHD8-haploinsufficient小鼠模型.
- 构建了大脑和肠道组织的单细胞转录组图谱.
- 利用益生菌干预 (Lactobacillus murinus) 并分析了转录基因数据.
主要成果:
- 由于CHD8的哈普洛缺陷导致神经发育延迟,脑部炎症,免疫缺陷和肠道异常.
- 在肠道细胞中具有选择性CHD8淘汰的小鼠表现出受损的社会新奇性识别.
- 在这些小鼠中,Lactobacillus murinus益生菌干预挽救了社会缺陷.
结论:
- CHD8在神经发育和肠道功能中起着重要的作用,与ASD相关.
- 由Lactobacillus murinus调节的肠道微生物组可以影响ASD模型中的社会行为.
- 这项研究提供了关于ASD肠-大脑轴的见解,并建议益生菌疗法.
相关概念视频
01:22Probiotics
Probiotics are live, non-pathogenic microorganisms that confer health benefits by modulating the gut microbiota. The human gastrointestinal tract harbors a complex microbial ecosystem, and the balance of this microbiota is crucial for digestive and systemic health. Among the most extensively studied and utilized probiotics are species formerly classified within the genera Lactobacillus and Bifidobacterium. These organisms not only naturally colonize the human gut but are also consumed through...
01:22Gut-Brain Axis
The gut–brain axis is a bidirectional communication system that connects the gastrointestinal tract and the brain. This interaction is mediated through multiple pathways, including the vagus nerve, hormonal signals, immune responses, and chemical messengers produced by gut microbes.Microbial Contributions to Brain FunctionGut microbiota contributes significantly to brain function by producing neuroactive compounds. These include neuroactive compounds that influence neurotransmitters such as...