通过单细胞分析,探索使用小鼠作为研究老化和阿尔茨海默病中微质细胞的替代模型的可行性
Rong He1, Qiang Zhang1, Limei Wang1
1Laboratory Animal Department, Kunming Medical University, Kunming, Yunnan, China.
PloS one
|November 26, 2024
概括
鼠标Apoe和Cx3cr1对研究阿尔茨海默氏症 (AD) 和人类衰老有希望. 然而,目前的AD小鼠模型在完全复制人类AD和衰老基因表达方面存在局限性,这凸显了研究中需要人类样本的需求.
科学领域:
- 神经科学是一个神经科学.
- 基因组学就是基因组学.
- 免疫学 免疫学 免疫学
背景情况:
- 衰老和阿尔茨海默氏症 (AD) 是复杂的神经系统疾病.
- 了解这些条件的跨物种相似性和差异对于开发有效的研究模型至关重要.
- 微质细胞在大脑衰老和AD病变发生过程中发挥着关键作用.
研究的目的:
- 在单细胞水平上比较人类和小鼠的微质细胞.
- 确定与衰老和AD相关的基因表达的相似性和差异.
- 为人类神经学研究指导动物模型的开发和应用.
主要方法:
- 单核RNA测序 (snRNA-seq) 和单细胞RNA测序 (scRNA-seq) 数据来自人类和小鼠海马.
- 使用Seurat和harmony R包进行差异基因表达和批量校正的生物信息分析.
- 通过使用Monocle2.2,对正确基因的跨种类比较分析和伪时代分析.
主要成果:
- 微质子群 (Cell_APOE/Apoe,Cell_CX3CR1/Cx3cr1) 在各个物种中显示与阿尔茨海默病和衰老相关的保持比例.
- 结核病和Fc玛R介导的细胞分裂等共享途径参与了微质对衰老和AD的反应.
- 在人类和小鼠之间,年龄和AD相关的基因表达趋势和特定标记基因 (例如IL1RAPL1,SPP1) 存在显著差异.
结论:
- 鼠标Apoe/Cell_Apoe和Cx3cr1/Cell_Cx3cr1可以作为人类AD和衰老研究的有价值的代理.
- 目前的AD小鼠模型 (App_NL_G_F) 在回顾特定的人类基因表达方面存在局限性 (IL1RAPL1,SPP1).
- 在全面的AD和衰老研究中,小鼠模型不能完全取代人类样本.
相关概念视频
Mouse Models of Cancer Study
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
Mouse Models of Cancer Study
Mice have long served as models for studying human biology and pathology because of their phylogenetic and physiological similarity with humans. They are also easy to maintain and breed in the laboratory, and hence, many inbred strains are now available for research. Studies on mice have contributed immeasurably to our understanding of cancer biology.
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...
The development of transgenic, knockout, and knock-in mice has led to an exponential increase in their use as model organisms in research,...


