遗传和表型多样性的nevus spilus表型:病例系列和一个拟议的诊断算法
Jia Zhang1,2, Qianyue Xu1,2, Dan Deng1,2,3
1Department of Dermatology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China.
Clinical genetics
|July 28, 2023
概括
在5名儿童的nevus spilus (NS) 病变中发现了NRAS或HRAS基因的体质突变. 这一发现澄清了多种NS表型的分子基础,并有助于诊断.
科学领域:
- 皮肤病学 皮肤病学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 状 (NS) 呈现为先天性多颜色斑块,具有来自黑色细胞的多种叠加病变.
- 不同NS表型的分子基础和分类尚未得到充分理解.
研究的目的:
- 为了研究儿童中多样化的nevus spilus表型的遗传基础.
- 识别有助于NS发展和分类的体质突变.
主要方法:
- 下一代测序 (NGS) 面板基因定型是在5名患有NS的儿童的骨髓活检,血液和毛囊的DNA上进行的.
- 向测序的重点是识别神经组织内的体质突变.
主要成果:
- 在所有nevus spilus活检中检测到NRAS或HRAS基因的体质突变.
- 在相应的血液或毛囊样本中没有发现致病变体,证实了体质起源.
- 该研究确定了与各种临床和病理NS表型相关的特定突变.
结论:
- 在NRAS/HRAS的体质突变是各种nevus spilus表型的关键驱动因素.
- 这些发现支持NS的遗传分类,并提出了诊断算法.
- 这项研究有助于优化诊断和管理nevus spilus.
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