在FSD1L中的双基变异会导致带有或没有神经系统参与的视网膜色素炎
Siying Lin1, Francesca Cancellieri2, Yexuan Cao3
1Division of Evolution, Infection and Genomics, School of Biological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK; Manchester Centre for Genomic Medicine, Saint Mary's Hospital & Department of Ophthalmology, Manchester Royal Eye Hospital, Manchester University NHS Foundation Trust, Manchester, UK; National Institute of Health Research Biomedical Research Centre at Moorfields Eye Hospital and the UCL Institute of Ophthalmology, London, UK; UCL Institute of Ophthalmology, University College London, London, UK.
新的研究确定了FSD1L基因中的罕见变异作为遗传视网膜疾病 (IRD) 的原因,特别是视网膜色素炎 (RP). 这一发现为缺乏遗传识别的RP患者提供了潜在的分子诊断.
科学领域:
- 遗传学 是一个遗传学.
- 眼科医生 眼科 眼科
- 分子生物学分子生物学
背景情况:
- 视网膜色素炎 (RP) 是一组遗传性视网膜疾病 (IRD),导致渐进的光受体退化.
- 许多RP患者缺乏分子诊断,尽管基因检测取得了进展.
研究的目的:
- 在RP患者中识别IRD的新型遗传原因.
- 研究FSD1L基因在视网膜功能和疾病中的作用.
主要方法:
- 整体外因子测序和分离分析以确定致病变体.
- 人类和老鼠视网膜中的基因表达分析.
- 免疫光和超结构扩展显微镜以确定蛋白质定位.
- 微基因检测和淋巴细胞DNA分析以鉴定拼接缺陷.
主要成果:
- 在FSD1L的双基极为罕见的变异被确定在六个来自四个家族的RP个体中.
- FSD1L在人类和老鼠视网膜中表达,特别是在光受体细胞中.
- FSD1L局限于光受体微管子轴膜,包括连接和外部段.
- 在FSD1L中发生的深层内基缺失导致受影响个体缺少替代拼接的外子 (外子10b).
结论:
- FSD1L的双基干扰与遗传性视网膜疾病 (IRD) 有关.
- FSD1L可能在光受体内的细胞内贩运中发挥作用.
- 这一发现为以前未被诊断的个体的RP提供了潜在的遗传解释.
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