相关实验视频

Updated: Jul 26, 2025

Evaluation of Planar-Cell-Polarity Phenotypes in Ciliopathy Mouse Mutant Cochlea

Evaluation of Planar-Cell-Polarity Phenotypes in Ciliopathy Mouse Mutant Cochlea

Published on: February 21, 2016

IFT74变种在小鼠和人类中引起骨纤维病变和运动纤维缺陷

Zeineb Bakey^1,2, Oscar A Cabrera³, Julia Hoefele⁴

¹Center for Pediatrics and Adolescent Medicine, University Hospital Freiburg, Freiburg University Faculty of Medicine, Freiburg, Germany.

|June 14, 2023

概括

内运输蛋白74 (IFT74) 突变会导致人类和小鼠的不同表型,影响的结构和功能. 这些突变导致骨,呼吸道和神经系统疾病,突出IFT74.

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:

乳毛是参与哺乳动物发育和健康的关键器官,通过内运输 (IFT) 组装在一起.
IFT功能障碍导致严重的发育表型影响多个器官.
在不同类型的眼中,IFT组件的特定作用,如IFT74,仍然不完全理解.

研究的目的:

在人类和小鼠中描述与IFT74功能障碍相关的异位基因特异现象.
调查IFT74的N端区域在乳毛组装和功能中的功能重要性.

主要方法:

对具有 IFT74 缺失或拼接部位突变的人类患者的分析.
具有向IFT74突变的小鼠模型的生成和表型分析.
在体外研究以评估蛋白质-蛋白质相互作用和氨酸结合.

主要成果:

人类 IFT74 异位基因2 缺失导致状腺形和状腺清除障碍,使毛缩短.
人类拼接部位变异导致致命的骨性软骨质疏松症.
模仿人类突变的小鼠模型显示出运动膜缺陷,生长限制和水头症;零基因基因导致严重心脏缺陷的胚胎致死性.

结论:

IFT74的N端40氨基酸对于管结合和适当的乳毛功能至关重要,特别是在运动性乳毛中.
IFT74突变导致多种各异位基因特异的表型,强调其在运动性和非运动性乳毛中发挥的重要作用.
对于移动与初级毛细胞的管素运输的不同要求可能解释了观察到的表型变化.

更多相关视频

Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis

Quantitative PCR-based Assay to Measure Sonic Hedgehog Signaling in Cellular Model of Ciliogenesis

Published on: January 31, 2025

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information

Published on: August 15, 2019

相关概念视频

Microtubules in Signaling

Microtubules in Signaling

The primary cilium, made up of microtubules, acts as antennae on the cell surfaces for relaying external stimuli into the cells. These fine hair-like structures are present, generally one per cell. These are non-motile cilia in a 9+0 microtubules arrangement, where the central pair of microtubules are absent. The primary cilia arise from the basal body embedded in the cell membrane. Intraflagellar transport (IFT) carries requisite proteins from the cytoplasm to the cilium because the primary...

Mechanism of Ciliary Motion

Mechanism of Ciliary Motion

The ciliary structures were first seen in 1647 by Antonie Leeuwenhoek while observing the protozoans. In lower organisms, these appendages are responsible for cell movement, while in higher organisms, these appendages help in the movement of the extracellular fluids within the body cavities.
The cilia are made up of microtubules in a 9+2 arrangement, with nine microtubule doublet ring bundles, surrounding a pair of central singlet microtubule bundles. The doublet microtubule bundles are...