朱伯特综合征导致CC2D2AC2域的突变,影响着乳毛和细胞信号分子的结构完整性
Roopasree O Jayarajan1,2, Soura Chakraborty3, Kozhiparambil Gopalan Raghu1,2
1Agro-processing and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram, Kerala, 695019, India.
Experimental brain research
|January 17, 2024
概括
在CC2D2A C2域中的缺陷会损害乳毛功能,改变基因表达,影响细胞信号传递,并可能导致乔伯特综合征 (JBTS). 这项研究阐明了CC2D2A突变如何影响介导通路.
科学领域:
- 细胞生物学 细胞生物学
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
背景情况:
- 乳毛是细胞信号传递和恒温的关键器官,有超过一千个基因参与它们的功能.
- 与乳毛相关基因的突变会导致被称为乳毛病的多系统性疾病.
- CC2D2A突变导致梅克尔综合征 (MKS) 或朱伯特综合征 (JBTS),后者导致显著的神经和视力障碍.
研究的目的:
- 研究CC2D2A的C2域中的缺陷如何影响乳毛结构和功能.
- 为了确定由CC2D2A C2域突变中断的细胞信号通路.
主要方法:
- 使用shRNA的IMCD-3细胞中CC2D2AC2域的淘汰.
- 免疫光分析以评估阴形态.
- 用于基因表达概况和生物信息学分析的RNA测序 (RNAseq).
主要成果:
- CC2D2A C2域淘汰导致毛形态有缺陷.
- 基因表达概况确定了61个与毛功能相关的差异表达基因 (DEG).
- 其中,50个毛细胞基因被降低调节,11个被上调调节,影响了毛细胞组合,蛋白质贩运,细胞细胞内传输 (IFT) 和像Hedgehog.com这样的信号通路.
结论:
- CC2D2A C2域对乳毛组装和细胞平衡所必需的分子信号传递至关重要.
- 朱伯特综合征中出现的CC2D2A C2域中的Missense突变可能会扰乱大脑和视网膜中的纤毛介导信号传递.
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