ADAMTSL2 突变决定了 Geleophysic 发育不良症的表型严重程度
Vladimir Camarena1, Monique M Williams2,3, Alejo A Morales1
1Dr. John T. Macdonald Foundation Department of Human Genetics.
JCI insight
|February 1, 2024
概括
Geleophysic Dysplasia-1 (GD1) 是由 ADAMTSL2 变体引起的,导致心肺呼吸系统问题. 损伤的ADAMTSL2分泌与疾病严重程度相关,如细胞和小鼠模型所示.
科学领域:
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
- 发展生物学 发展生物学
背景情况:
- Geleophysic Dysplasia-1 (GD1) 是一种与 ADAMTSL2 变种相关的自体相衰退性疾病.
- 临床表现范围从围产死亡到较温和的成年表型,包括独特的面部特征,关节硬,矮身和心肺呼吸系统并发症.
研究的目的:
- 根据患者的复合异质合体ADAMTSL2变体 (p.R61H和p.A165T) 开发和描述GD1的细胞和小鼠模型.
- 调查ADAMTSL2分泌障碍与疾病严重程度之间的基因型-表型相关性.
主要方法:
- 开发模拟患者ADAMTSL2变异的细胞和小鼠模型.
- 在体外评估ADAMTSL2分泌.
- 具有不同ADAMTSL2等位基组组合的小鼠的表型特征,包括呼吸功能测试,心声学,MRI和组织学.
主要成果:
- 两种 p.R61H 和 p.A165T ADAMTSL2 变种都影响了蛋白质分泌,而 p.A165T 显示出更严重的影响.
- 鼠标模型表现出多种GD1表型,包括致死性,轻度生长障碍和严重的呼吸和心脏功能障碍.
- 呼吸功能障碍主要影响出口,一些小鼠患有阻塞后肺炎. 心脏问题包括静脉缩功能障碍和多变性心肌病变.
结论:
- 在ADAMTSL2分泌受损程度和GD1表型的严重程度之间存在强烈的相关性.
- 开发的模型是研究GD1病变的宝贵工具,并探索潜在的治疗策略.
相关概念视频
Lethal Alleles
15.4K
Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
15.4K
Incomplete Dominance
22.6K
Gregor Mendel's work (1822 - 1884) was primarily focused on pea plants. Through his initial experiments, he determined that every gene in a diploid cell has two variants called alleles inherited from each parent. He suggested that amongst these two alleles, one allele is dominant in character and the other recessive. The combination of alleles determines the phenotype of a gene in an organism.
22.6K
Glucose Transporters
22.8K
Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose.
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
22.8K
Translation
142.0K
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...
142.0K
Inborn Errors of Metabolism
160
Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
160
Mutations
82.3K
Overview
82.3K


