在ATP6V1C1和ATP6V1B2中具有主导作用的变异因改变 lysosomal 和/或自细胞功能而导致多系统的表型谱
Giovanna Carpentieri1, Serena Cecchetti2, Gianfranco Bocchinfuso3
1Molecular Genetics and Functional Genomics, Ospedale Pediatrico Bambino Gesù, IRCCS, 00146 Rome, Italy; Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy.
ATP6V1C1和ATP6V1B2基因中的致病变体会导致真空H+-ATPase (V-ATPase) 中的功能增益突变,导致 lysosomal 酸化增加和相关疾病,如DOORS综合征.
科学领域:
- 细胞生物学 细胞生物学
- 遗传学 是一个遗传学.
- 分子医学是分子医学.
背景情况:
- 真空H+-ATPase (V-ATPase) 对于器官酸化至关重要,其功能障碍与人类疾病有关.
- ATP6V1B2中的致病变体与DDOD,ZLS和DOORS等综合征有关.
研究的目的:
- 为了研究ATP6V1C1在DOORS综合征中的作用.
- 扩大ATP6V1B2变体的临床特征.
- 阐明这些疾病中V-ATPase失调的分子机制.
主要方法:
- 一个患有DOORS综合征的个体的遗传分析.
- 对ATP6V1C1和ATP6V1B2变体的功能研究.
- 溶酶体形态,功能和自流的分析.
- 评估V-ATPase活性和皮生物发生.
主要成果:
- 确定了ATP6V1C1变异,导致类似DOORS的神经发育表型.
- 证明ATP6V1C1/ATP6V1B2变体导致V-ATPase功能增强和溶解体酸化增加.
- 观察到溶酶体形态的干扰,自流的受损,以及受影响的纤毛生物发生.
结论:
- ATP6V1C1是一种与类似于DOORS综合征的神经发育障碍相关的新型基因.
- ZLS,DDOD和DOORS综合征代表了一种与V-ATPase功能障碍相关的表型连续.
- 这些情况被归类为由于与V-ATPase相关的缺陷引起的溶酶性疾病.
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