YAP1::MAML2 结合毛孔和油脂成分的副瘤中的融合:两例病例报告
Clara Noebel1, Marie-Laure Juillé2,3, Ana-Maria Gebing1
1Institute of Pathology and Dermatohistopathology, PROdermpath, Vreden, Germany.
The American Journal of dermatopathology
|February 13, 2026
概括
这项研究确定了YAP1::MAML2融合转录在罕见的副瘤结合毛孔和脂分化. 这些发现扩大了已知YAP1融合瘤的范围,突出了它们在瘤形成中的作用.
科学领域:
- 皮肤病理学 皮肤病理学
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 毛孔瘤是良性汗腺瘤,通常与YAP1融合有关.
- 最近,在其他副瘤 (如三母细胞瘤和脂肪瘤) 中发现了YAP1融合.
研究的目的:
- 为了研究结合毛孔和脂质分化的副瘤.
- 为了扩大对YAP1融合的副瘤的理解.
主要方法:
- 对两个瘤病例进行了组织病理学检查.
- 免疫组织化学分析包括雄激素受体和YAP1.1.
- 分子分析以检测聚变转录.
主要成果:
- 确定了两种双相附瘤病例 (瘤和脂质成分).
- 在这两种情况下都检测到了YAP1::MAML2融合转录.
- 油脂区域显示了雄激素受体的阳性,并且这两种成分都失去了YAP1的表达.
结论:
- YAP1融合是副瘤子集中的瘤驱动因素.
- 附带瘤可以表现出结合的皮质,卵泡和脂质分化.
- 这项研究扩大了与YAP1基因融合相关的瘤的范围.
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