自体主导骨质疏松症 (ADO) 由TCIRG1基因中的错误变异引起的
Wade Jodeh1, Amy J Katz1, Marian Hart1
1Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
The Journal of clinical endocrinology and metabolism
|January 23, 2024
概括
自体主导骨质疏松症 (ADO) 可能是由T细胞免疫调节器1 (TCIRG1) 基因变异引起的,而不仅仅是化物通道7 (CLCN7). 这项研究揭示了TCIRG1误解突变家族内ADO呈现的显著变异性.
科学领域:
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
- 骨发育不良症 骨发育不良症
背景情况:
- 自体主导性骨质疏松症 (ADO) 是一种罕见的遗传性疾病,其特征是骨质类骨质再吸收受损.
- ADO通常表现为骨折,骨髓缩,骨质炎,失明和骨髓衰竭,通常是由于化物通道7基因 (CLCN7) 中的异性误解变异.
- 已知T细胞免疫调节器1基因 (TCIRG1) 的变异是导致自身逆性骨质疏松症的已知原因,但很少与ADO有关.
研究的目的:
- 报告第一个由T细胞免疫调节器1 (TCIRG1) 基因变异引起的自体主导骨质疏松症 (ADO) 的成年表现.
- 调查TCIRG1误解突变在ADO病变发生中的作用.
- 要突出与TCIRG1相关的ADO相关的表型变异性.
主要方法:
- 对三个家族成员的临床和遗传分析,表现出与自体主导骨质疏松症 (ADO) 相一致的表型.
- 在T细胞免疫调节器1 (TCIRG1) 基因中发现了一种单一的异质合体误解变异 (p.Gly579Arg).
- 使用五个蛋白质预测程序进行in silico分析,以评估已识别的TCIRG1变种的功能影响.
主要成果:
- 在TCIRG1基因中,在三名患有自身主导性骨质疏松症 (ADO) 的家族成员中发现了一种异构性误解变异 (p.Gly579Arg).
- 蛋白质预测程序表明TCIRG1变种可能会抑制基因功能.
- 受影响的家庭成员表现出显著的表型变异性,其中两个人呈现严重的疾病,一个人具有非常轻微的症状.
结论:
- 这项研究确立了T细胞免疫调节器1 (TCIRG1) 误解突变是导致自体主导骨质疏松症 (ADO) 的原因.
- 这些发现表明,明显的表型变异性,类似于在CLCN7相关的ADO中观察到的变异性,也可能发生在TCIRG1相关的ADO中.
- 这份报告扩大了ADO的遗传谱,并强调了在骨质疏松症的差异诊断中考虑TCIRG1的重要性.
相关概念视频
The Retinoblastoma Gene
4.1K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
4.1K
Cancer-Critical Genes I: Proto-oncogenes
8.9K
Genes usually encode proteins necessary for the proper functioning of a healthy cell. Mutations can often cause changes to the gene expression pattern, thereby altering the phenotype.
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
When the function of certain critical genes, especially those involved in cell cycle regulation and cell growth signaling cascades, gets disrupted, it upsets the cell cycle progression. Such cells with unchecked cell cycles start proliferating uncontrollably and eventually develop into tumors.
Such genes that act...
8.9K
Genetic Lingo
102.8K
Overview
102.8K
Translation
14.9K
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 Life
Proteins are...
Translation Produces the Building Blocks of Life
Proteins are...
14.9K
Loss of Tumor Suppressor Gene Functions
4.8K
Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
4.8K
Cystic Fibrosis: Pathogenesis
244
Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
244


