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胸膜神经内分泌瘤的谱系特异性转录因子格局

Seiji Omura¹, Yutaka Kurebayashi², Junko Hamamoto³

¹Division of Thoracic Surgery, Keio University School of Medicine, Tokyo, Japan.

Lung cancer (Amsterdam, Netherlands)

|August 30, 2025

概括

这项研究揭示了胸膜神经内分泌瘤 (TNET) 的分子异质性. ASCL1和YAP1的共同表达定义了高等级的TNET,特别是大细胞神经内分泌癌 (LCNEC),表明了不同的TF景观.

科学领域:

癌症学
分子病理学
内分泌学

背景情况:

胸膜神经内分泌瘤 (TNET) 是一种罕见的,具有有限治疗选择的恶性瘤.
小细胞肺癌 (SCLC) 的分类使用像ASCL1,NEUROD1,POU2F3和YAP1这样的转录因子 (TF).
跨越网络的TF景观不清楚,这促使对基于SCLC的分类适用性进行调查.

研究的目的:

调查基于TF的分类系统从SCLC到TNET的适用性.
定义各种TNET亚型的TF景观,包括大细胞神经内分泌癌 (LCNEC),胸腺小细胞癌 (TSCC),非典型癌 (AC) 和典型癌 (TC).

主要方法:

对16个病理确认的TNET进行了回顾性分析.
免疫组织化学测定神经内分泌 (NE) 标记物 (合成素,染色素A,CD56) 和TFs (ASCL1,NEUROD1,POU2F3,YAP1).
根据TF概况计算TF表达的H分数和瘤的分类.

主要成果:

在LCNEC和TSCC中呈现变异性表达.
ASCL1的表达很高 (93.8%),而NEUROD1和POU2F3的表达很少.
YAP1的表达仅限于LCNEC,与ASCL1共同表达. 这些TNET被分为ASCL1+/ YAP1,ASCL1/ YAP1双阳性和双阴性子组.

结论:

胸膜神经内分泌瘤具有显著的分子异质性.
ASCL1 和 YAP1 的共同表达是 LCNEC 的定义特征,在高等级的 TNET 中表明了独特的 TF 景观.
基于TF的分类可以提供TNET亚型和潜在的治疗策略的见解.

关键词:

ASCL1 其他免疫组织化学分子分类胸膜神经内分泌瘤一个 YAP

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