低颜色结节BAP1-非活化黑色素瘤:一个范式的转变
Ali Gunesch1, Iwei Yeh2, Timothy McCalmont3
1Oregon Health & Science University, School of Medicine, Portland, Oregon, USA.
Journal of cutaneous pathology
|April 6, 2025
概括
这项研究详细介绍了一种罕见的多个BAP1失活的黑色素瘤的罕见病例,具有低颜色的特征. 遗传分析显示,在病变中存在相同的BAP1突变,其中一个也显示NF1突变.
科学领域:
- 皮肤病理学 皮肤病理学
- 在瘤学瘤学.
- 遗传学 遗传学 是一个
背景情况:
- 越来越多的特征是BRCA1相关蛋白1 (BAP1) 失活的黑色素细胞瘤.
- 以前的报道没有广泛记录多个BAP1失活的黑色素瘤,呈现出低颜色.
研究的目的:
- 报告一个不寻常的多重病例,临床上呈低颜色,结节性黑色细胞BAP1失活的黑色细胞瘤.
- 通过向DNA测序来调查这些病变的分子基础.
主要方法:
- 对多种黑色细胞病变的临床和组织病理学检查.
- 病变活检的向DNA测序,以确定BAP1和NF1基因中的突变.
主要成果:
- 三种不同的BAP1失活的黑色素瘤 (BIM) 呈现出低颜色的临床外观.
- 在所有三种病变中都检测到相同的BAP1框架转移突变 (BAP1 p.R59f).
- 一个病变还存在NF1 (NF1 p.Q129*和NF1 p.Q1801*) 的同时截断突变.
结论:
- 这一案例突出显示了多个低颜色的BAP1失活的黑色素瘤的异常表现.
- 这些发现强调了BAP1失活的黑色细胞瘤中的遗传异质性,包括潜在的同时发生的NF1突变.
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