一个新型同卵性ADCY3变体的功能评估,导致儿童肥胖
Idris Mohammed1,2, Senthil Selvaraj3, Wesam S Ahmed1
1College of Health & Life Sciences, Hamad Bin Khalifa University, Doha P.O. Box 34110, Qatar.
International journal of molecular sciences
|November 9, 2024
概括
一种新的腺酸环酶3 (ADCY3) 变体,p.Thr840X,导致严重的早期肥胖和胰岛素抵抗. 功能性研究证实ADCY3活性受损,突出其在代谢调节中的作用.
科学领域:
- 遗传学和分子生物学
- 内分泌学 在内分泌学.
- 代谢障碍 代谢障碍 代谢障碍
背景情况:
- 腺酸环酶3 (ADCY3) 对于cAMP信号传递,调节新陈代谢至关重要.
- 功能丧失的ADCY3变体与肥胖和胰岛素抵抗有关.
- 功能增益变体提供了对肥胖的保护.
研究的目的:
- 为了识别和功能性地表征一种新的致病ADCY3变异.
- 为了研究儿童患者早期严重肥胖的遗传基础.
- 探索ADCY3功能障碍背后的体外和体内机制.
主要方法:
- 基因组测序发现了ADCY3.3.中的一种新型同卵性无意义变异 (c.2520C>G,p.Thr840X).
- 进行了体外和内分析,以评估ADCY3蛋白的功能和激活.
- 临床表型包括对肥胖,肝壮症和胰岛素耐药性的评估.
主要成果:
- 在ADCY3基因中发现了一种新的同卵性无意义变异p.Thr840X.
- 功能性研究表明ADCY3蛋白水平降低和激活受损.
- 该患者表现出严重的肥胖,肝壮病和胰岛素耐药性,与ADCY3功能丧失一致.
结论:
- 这种新型的p.Thr840X ADCY3变体具有病原性,导致严重的早期肥胖和胰岛素抵抗.
- 损坏的ADCY3酶活性和受体功能是观察到的表型的基础.
- 对ADCY3变异的基因测试对于诊断和管理早期肥胖至关重要.
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