小说KIF11新临床特征的变体:扩大临床表现型
T Apuhan1, A Saglam Kubra1, M Yilmaz1
1Department of Medical Genetics, Faculty of Medicine, Karadeniz Technical University, Trabzon, Turkey.
单基KIF11变体会导致带有或没有胆色素变异,淋巴或智力发育障碍 (MCLMR) 综合征的小头. 这项研究揭示了极端的临床异质性和新发现,包括产前淋巴和骨突症,扩大了KIF11疾病谱.
科学领域:
- 遗传学和基因组学 在
- 人类分子遗传学
- 发展生物学 发展生物学
背景情况:
- 基因KIF11中的单基因变异与带有或没有胆色素变异,淋巴结胀或智力发育障碍 (MCLMR) 综合征 (OMIM:152950) 的小头有关.
- 与KIF11相关疾病的临床谱和遗传基础尚未完全阐明,需要进一步调查基因型-表型相关性.
研究的目的:
- 描述与KIF11相关的MCLMR综合征相关的临床异质性和遗传变异.
- 确定新的表型特征,并扩大对KIF11相关疾病的基因型和表型谱的理解.
主要方法:
- 整体外体测序 (WES) 在两个家庭的患者的外周血液样本上进行.
- 分子分析在KIF11基因中发现了异合的框架转移变体.
- 进行分离分析以确认变异遗传模式.
主要成果:
- 两个不同的7名患者家庭在KIF11相关的MCLMR综合征中表现出极端的临床异质性.
- 确定了新的KIF11变异 (c.2224_2225del和c.2946dup),包括一个患者的新变异和另一个患者的遗传变异.
- 观察到罕见的特征,如角质,视神经低成形,行为问题和发作. 产前淋巴和骨突症被确定为潜在的新型现象表现.
结论:
- 这些发现强调了与MCLMR综合征中KIF11变异相关的显著临床变异性.
- 这项研究扩大了已知的基因型和表型谱的KIF11相关疾病,突出显示产前淋巴和骨突作为显著的特征.
- 需要进一步的研究,以充分理解KIF11变体及其相关临床表现的含义.
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