Defective neurite elongation and branching in Nibp/Trappc9 deficient zebrafish and mice.

Defective neurite elongation and branching in Nibp/Trappc9 deficient zebrafish and mice.
复制标题

DOI:
10.7150/ijbs.78489
复制
发表时间:
2023
影响因子:
9.2
通讯作者:
Hu W
Hu W
中科院分区:
生物学2区
文献类型:
--
作者:
Hu M;Bodnar B;Zhang Y;Xie F;Li F;Li S;Zhao J;Zhao R;Gedupoori N;Mo Y;Lin L;Li X;Meng W;Yang X;Wang H;Barbe MF;Srinivasan S;Bethea JR;Mo X;Xu H;Hu W

文献摘要

参考文献

相似文献

转运蛋白颗粒(TRAPP)功能丧失与一组新出现的遗传性疾病(称为“TRAPPopathies”)有关。一种这样的疾病是NIBP综合征,其特征在于小头畸形和智力残疾,并且由TRAPPII的关键和独特成员NIBP/TRAPPC 9的突变引起。为了研究小头畸形的神经细胞/分子机制,我们使用不同的技术开发了Nibp/Trappc 9缺陷动物模型,包括斑马鱼中的morpholino敲除和CRISPR/Cas突变以及小鼠中的Cre/LoxP介导的基因靶向。Nibp/Trappc 9缺陷损害了TRAPPII复合物在神经突和生长锥的肌动蛋白丝和微管处的稳定性。这种缺陷也损害了神经元树突和轴突的伸长和分支,对胚胎和成人脑中的神经突起始或神经细胞数量/类型没有显著影响。TRAPPII稳定性和神经突伸长/分支的正相关性表明TRAPPII在调节神经突形态中的潜在作用。这些结果提供了新的遗传/分子证据,以确定患者的一种类型的非综合征性常染色体隐性智力残疾,并强调了开发治疗方法的重要性,靶向TRAPPII复合物治愈TRAPPopathies。
Loss of function in transport protein particles (TRAPP) links a new set of emerging genetic disorders called “TRAPPopathies”. One such disorder is NIBP syndrome, characterized by microcephaly and intellectual disability, and caused by mutations of NIBP/TRAPPC9, a crucial and unique member of TRAPPII. To investigate the neural cellular/molecular mechanisms underlying microcephaly, we developed Nibp/Trappc9-deficient animal models using different techniques, including morpholino knockdown and CRISPR/Cas mutation in zebrafish and Cre/LoxP-mediated gene targeting in mice. Nibp/Trappc9 deficiency impaired the stability of the TRAPPII complex at actin filaments and microtubules of neurites and growth cones. This deficiency also impaired elongation and branching of neuronal dendrites and axons, without significant effects on neurite initiation or neural cell number/types in embryonic and adult brains. The positive correlation of TRAPPII stability and neurite elongation/branching suggests a potential role for TRAPPII in regulating neurite morphology. These results provide novel genetic/molecular evidence to define patients with a type of non-syndromic autosomal recessive intellectual disability and highlight the importance of developing therapeutic approaches targeting the TRAPPII complex to cure TRAPPopathies.
DOI: 10.1016/j.neuron.2010.01.017
发表时间: 2010-02-11
期刊: Neuron
影响因子: 16.2
作者:
Drinjakovic J;Jung H;Campbell DS;Strochlic L;Dwivedy A;Holt CE
通讯作者: Holt CE
DOI: 10.3390/genes13122285
发表时间: 2022-12-04
期刊: GENES
影响因子: 3.5
作者:
Bastos, Giovanna Civitate;Tolezano, Giovanna Cantini;Krepischi, Ana Cristina Victorino
通讯作者: Krepischi, Ana Cristina Victorino
DOI: 10.1073/pnas.2113929118
发表时间: 2021-10-26
影响因子: 11.1
作者:
Glock C;Biever A;Tushev G;Nassim-Assir B;Kao A;Bartnik I;Tom Dieck S;Schuman EM
通讯作者: Schuman EM
DOI: 10.1089/hum.2006.17.635
发表时间: 2006-06-01
期刊: HUMAN GENE THERAPY
影响因子: 4.2
作者:
Geraerts, Martine;Eggermont, Kristel;Debyser, Zeger
通讯作者: Debyser, Zeger
DOI: 10.1002/glia.22632
发表时间: 2014-04-01
期刊: GLIA
影响因子: 6.2
作者:
From, Renana;Eilam, Raya;Aharoni, Rina
通讯作者: Aharoni, Rina