在成年期发现的一种罕见的PBX1变体:一个病例报告
Ah-Rim Han1,2, Youngyoon Moon1,2, Yang-Gyun Kim2,3
1Department of Medicine, Graduate School, Kyung Hee University, Seoul, Republic of Korea.
Frontiers in medicine
|November 19, 2025
概括
在PBX1基因中的异常会导致脏和尿路的先天性异常 (CAKUT). 一种新型的PBX1变异在患者中引起慢性病和焦点细分质硬化症,突出了PBX1变异.
科学领域:
- 遗传学 是一个遗传学.
- 腎臟病學 (nephrology) 是一種醫學.
- 发展生物学 发展生物学
背景情况:
- PBX1基因的突变是已知的脏和泌尿道 (CAKUT) 的先天性异常的原因.
- PBX1突变的表型变异性使早期诊断复杂化,特别是当脏和尿路异常不明显时.
研究的目的:
- 报告患有新型PBX1变异的患者患有早期发病的慢性病和焦点细分质硬化 (FSGS) 的病例.
- 扩大对PBX1相关疾病的表型谱及其表现的理解.
主要方法:
- 对一名28岁男性进行临床评估,该男性患有早期发病的慢性病和蛋白尿症.
- 脏活检显示FSGS和急性管状缩.
- 基因检测识别了一种新的异合体PBX1无意义变体 (p.Arg93Ter).
- 反向表型鉴定以识别额外上表现.
主要成果:
- 患者出现了无法解释的慢性病和FSGS,对标准治疗无反应.
- 基因分析揭示了一个可能的致病性新型PBX1变体,p.Arg93Ter.
- 反向表型识别发现了密码学和异形耳朵,与PBX1相关的CAKUT一致.
- 这种变体逃脱了无意中介衰变,这可能解释了缺乏明显的脏结构异常.
结论:
- 这种情况扩大了PBX1相关疾病的表型谱,强调其脏表现.
- 这些发现突显了FSGS的临床异质性以及在不明原因的病中基因检测的重要性.
- 在间歇性和内皮细胞中PBX1的作用可能通过减少脏捐赠或改变细胞相互作用,导致脏病理.
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