在家族排泄性玻璃红蛋白病变中发现了五种新型致病性FZD4变异
You Wang1, Qiong Wang2, Limei Chen2
1Department of Ophthalmology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
Advances in ophthalmology practice and research
|October 13, 2025
概括
研究人员在患有家族排泄性玻璃红蛋白病变 (FEVR) 的患者中发现了五种新的FZD4基因变异. 功能测试证实这些变体会损害β-catenin信号传输,有助于FEVR诊断.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 亲属排泄性视网膜病变 (FEVR) 是一种遗传性视网膜血管疾病.
- 调节诺林/β-catenin信号传递的基因突变导致近一半的FEVR病例.
研究的目的:
- 在FEVR患者中识别和功能性描述新型FZD4变异.
- 研究FZD4在诺林/β-catenin通路中的作用.
主要方法:
- 在FEVR家族中FZD4的遗传测序.
- 生物信息学预测和临床评估.
- 双露西法酶记者测定以评估变体功能.
主要成果:
- 确定了五种新的FZD4变种.
- 所有变体都显著降低了β-catenin信号活动.
- 两种不确定的变异被重新归类为致病性.
结论:
- 在FEVR中扩大了FZD4突变的谱.
- 功能验证对于解释遗传变异至关重要.
- 改善了FEVR的诊断准确性和遗传咨询.
相关概念视频
The Retinoblastoma Gene
4.7K
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,...
4.7K
Cystic Fibrosis: Pathogenesis
716
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,...
716
Pleiotropy
43.2K
Pleiotropy is the phenomenon in which a single gene impacts multiple, seemingly unrelated phenotypic traits. For example, defects in the SOX10 gene cause Waardenburg Syndrome Type 4, or WS4, which can cause defects in pigmentation, hearing impairments, and an absence of intestinal contractions necessary for elimination. This diversity of phenotypes results from the expression pattern of SOX10 in early embryonic and fetal development. SOX10 is found in neural crest cells that form melanocytes,...
43.2K


