K乙转移酶2B (KAT2B) 变体可能是早期发病的类固醇耐药性性综合征的原因
Olivier Niel1,2, Ancuta Caliment3, Charlotte Hougardy4,5
1Pediatric Nephrology, Centre Hospitalier de Luxembourg, Luxembourg, Luxembourg, Luxembourg niel.olivier@chl.lu.
Journal of medical genetics
|October 4, 2024
概括
在KAT2B中发生的基因突变会导致具有眼睛缺陷的类固醇耐药性性综合征 (SRNS). 这一发现有助于诊断儿童罕见的遗传病.
科学领域:
- 遗传学 遗传学 是一个
- 腎臟病學 (nephrology) 是一種醫學.
- 眼科医生 眼科 眼科
背景情况:
- 类固醇耐药性性综合征 (SRNS) 影响了15%的患有性综合征的儿童,其中30%有遗传原因.
- 在K乙转移酶2B (KAT2B) 中的功能丧失与Drosophila中的脏缺陷和人类 podocyte 功能受损有关.
- SRNS可能是综合征性,涉及其他器官,如眼睛,并带有进展性功能衰竭的高风险.
研究的目的:
- 提供KAT2B基因中具有功能丧失突变的家族的第一个临床描述.
- 研究KAT2B突变在出现眼部异常的综合性SRNS中的作用.
主要方法:
- 临床病例描述一个家庭的早期发病SRNS和双边白内障.
- 评估功能和对免疫抑制疗法的反应.
- 基因分析以确定KAT2B基因中的突变.
主要成果:
- 兄弟姐妹呈现早期发病的SRNS和双边白内障,没有神经或心脏缺陷.
- 功能一直保持到青春期,蛋白尿对免疫抑制有抗性.
- 在KAT2B中,功能丧失突变被确定为观察到的表型的原因.
结论:
- 在患有不明原因的SRNS综合征的患者中,特别是在患有相关眼睛异常的患者中,应考虑KAT2B的突变.
- KAT2B突变代表了带有眼部表现的综合性SRNS的新型遗传原因.
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