在UBAP1L和非综合性视网膜 Dystrophies 中的双边功能丧失变体
Ehsan Ullah1, Siying Lin2,3, Jiaxiong Lu4,5
1Ophthalmic Genetics and Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, Maryland.
JAMA ophthalmology
|September 26, 2024
概括
在UBAP1L基因的遗传变异与遗传性视网膜发育不良 (IRDs) 有关. 这一发现为诊断和治疗这些具有挑战性的眼睛疾病提供了新的途径.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 遗传性视网膜变 (IRDs) 呈现出显著的遗传异质性,使临床诊断复杂化.
- 下一代测序 (NGS) 已经推进了IRD研究,但许多遗传原因仍未确定.
- 识别新型疾病基因对于改善IRD诊断,预后和治疗开发至关重要.
研究的目的:
- 在临床和分子上对六名患有IRD的患者进行表征,这些患者在UBAP1L基因中存在双变异.
- 调查UBAP1L作为与遗传视网膜病变相关的潜在新基因的作用.
主要方法:
- 多中心病例系列涉及四家三级医院的六名IRD患者.
- 综合眼科评估和整个外因组/基因组测序.
- 功能性研究包括小基因测试和淘汰赛小鼠模型.
主要成果:
- 在受影响的个体中,发现了四种不同的同卵性UBAP1L变体 (2个移,1个正规拼接,1个非正规拼接).
- 临床表现包括黄斑病变,形缩和杆缩.
- 在人类视网膜细胞中,UBAP1L的表达很高;具有特定UBAP1L切断的小鼠模型没有显示视网膜退化.
结论:
- 临床和遗传证据将UBAP1L功能丧失与人类遗传视网膜病变联系起来.
- 这些发现可能会增强IRD的诊断能力和预后评估.
- 这项研究为开发针对UBAP1L相关的视网膜变症的向疗法提供了可能性.
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