致病性KIAA0586/TALPID3变体与初级和运动的缺陷有关
Jacqueline E Taudien1, Diana Bracht2, Heike Olbrich2
1Human Genetics, School of Medicine and Health Sciences, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany.
iScience
|February 3, 2025
概括
在KIAA0586/TALPID3的致病变体导致乔伯特综合征 (JS) 和严重的呼吸道疾病由于初级和运动毛缺陷. 这一发现将KIAA0586/TALPID3变体与影响多个器官系统的复杂纤毛病联系起来.
科学领域:
- 遗传学 是一个遗传学.
- 细胞生物学 细胞生物学
- 呼吸系统医学 呼吸系统医学
背景情况:
- KIAA0586/TALPID3中的致病变体与朱伯特综合征 (JS) 相关,这是一种罕见的遗传纤毛病.
- 纤毛病常常表现为各种各样的临床症状,原因是初级纤毛的缺陷.
研究的目的:
- 调查KIAA0586/TALPID3变体与JS综合征和慢性破坏性呼吸道疾病之间的关联.
- 为了阐明KIAA0586/TALPID3变异对初级和运动膜功能的功能影响.
主要方法:
- 用DNA测序来识别受影响家族中的致病变体.
- 呼吸道细胞 (原生和ALI培养的) 的组织学和功能分析.
- 在患者衍生纤维细胞中测量初级乳毛长度.
主要成果:
- 在三个家族中确定了KIAA0586/TALPID3变种,其中包括激活一个神秘外型的深内变种.
- 证明KIAA0586/TALPID3变体会导致肌数量减少,基底体组织不整,肌清除受损.
- 在患者衍生的细胞系中观察到初级毛缺陷,与临床表型相关.
结论:
- KIAA0586/TALPID3变种与一种综合症有关,该综合症结合了朱伯特综合症和慢性破坏性呼吸道疾病.
- 这项研究强调了KIAA0586/TALPID3在初级毛和运动毛功能中的关键作用.
- 如果出现JS和呼吸系统症状,应考虑KIAA0586/TALPID3序列分析.
相关概念视频
Microtubules in Signaling
1.7K
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...
1.7K
Mechanism of Ciliary Motion
3.6K
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...
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...
3.6K
Translation
141.4K
Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of...
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of...
141.4K
Cytoskeletal Linker Proteins - Plakins
2.2K
Plakins are large proteins with binding domains for microtubules, microfilaments, intermediate filaments, and membrane-associated protein complexes at cell junctions. Plakin functions are evolutionarily conserved and are primarily involved in organizing the different components of the cytoskeleton by crosslinking them to each other and connecting them to the cell-matrix and cell adhesion complexes. They are also known to interact with signal transducers, serve as scaffolds for signaling...
2.2K
Microtubules in Cell Motility
3.2K
Microtubules are thick hollow cylindrical proteins that help form the cytoskeleton. Microtubules have varied roles in the cell. These filaments help form cellular appendages like cilia and flagella, which are responsible for locomotion. The cilia arise from basal bodies, separated from the main body by a membrane-like structure forming the transition zone. This zone is the gate for the entry of lipids and proteins, creating a unique composition of lipids and proteins in the ciliary membrane and...
3.2K
Destabilization of Microtubules
2.6K
The destabilization of microtubules can occur during different stages of the microtubule lifecycle, such as nucleation or elongation. It can take place at either end of the microtubule or in the microtubule lattices as a whole. The lifespan of individual microtubules within a cell varies according to the cell type and stage of the cell cycle. During interphase, the lifespan of the microtubule is about 30 minutes, while during cell division, it is about 15 minutes. In axonal microtubules of...
2.6K


