在小鼠中,Dmxl1是必要的,以使其在发育过程中的器官生成阶段生存
Andrew M Vontell1, Logan Willeke1, Paul P R Iyyanar1
1Steve and Cindy Rasmussen Institute for Genomic Medicine, Abigail Wexner Research Institute, Nationwide Children's Hospital, Columbus, OH, 43205, USA.
Differentiation; research in biological diversity
|December 2, 2025
概括
在小鼠中失去DMXL1基因会导致早期胚胎死亡,这表明细胞功能至关重要. 这一发现要求对DMXL1进行进一步的调查.
科学领域:
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
- 分子生物学分子生物学
背景情况:
- 唇裂和裂是由于胚胎融合失败导致的常见先天性异常.
- 遗传因素对这些疾病有很大贡献,但因果基因仍未完全确定.
- 在DMXL1的候选病原体变异被确定在患有微和口腔裂的患者中.
研究的目的:
- 研究DMXL1在面发育和胚胎生存能力中的作用.
- 为了验证在人类患者中发现的DMXL1的候选致病变体.
主要方法:
- 用基因组编辑来创建一个具有Dmxl1突变等位基因序列的小鼠模型.
- 这包括一个小的删除和两个正义错误变体.
- 现型分析侧重于胚胎死亡率和面发育.
主要成果:
- 在小鼠中,Dmxl1功能的丧失导致了非常早期的胚胎死亡.
- 测试的特定误解变体没有被发现是致病的.
- 这些发现证实并扩展了最近对Dmxl1基本细胞功能的研究.
结论:
- Dmxl1在早期胚胎发育中起着至关重要的作用,对细胞活力至关重要.
- 该基因的功能至关重要,表明它可能与人类先天性异常有关.
- 建议对DMXL1进行进一步的研究,以了解人类疾病遗传学.
更多相关视频
11:25Quantitative Analysis of Protein Expression to Study Lineage Specification in Mouse Preimplantation Embryos
Published on: February 22, 2016
11.3K
06:46Mouse Fetal Whole Intestine Culture System for Ex Vivo Manipulation of Signaling Pathways and Three-dimensional Live Imaging of Villus Development
Published on: September 4, 2014
15.5K
相关概念视频
02:50Dosage Compensation
7.0K
In animals, gender is determined by the number and type of sex chromosome. For example, human females have two X chromosomes, and males have one X and one Y chromosome, whereas C.elegans with one X chromosome is a male, and the one with two X chromosomes is a hermaphrodite.
In addition to sexual development, the X chromosome has genes involved in autosomal functions such as brain development and the immune system. Therefore, males and females with distinct numbers of X chromosomes will...
In addition to sexual development, the X chromosome has genes involved in autosomal functions such as brain development and the immune system. Therefore, males and females with distinct numbers of X chromosomes will...
7.0K
02:45The Ratio of X Chromosome to Autosomes
9.4K
In most organisms, sex is determined by the ratio of X and Y chromosomes. However, in some organisms, such as Drosophila and C.elegans, sex is determined by the ratio of the number of X chromosomes to the number of sets of autosomes. The Y chromosome in Drosophila is active but does not determine sex. It contains genes responsible for the production of sperms in adult flies.
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
Normal male Drosophila has a ratio of one X chromosome to two sets of autosomes. In contrast, normal female...
9.4K