化疗后黄囊瘤中的β-catenin变化,后青春期类型,具有肠芽细胞特征
Ahmet Surucu1, Dario de Biase2, Costantino Ricci3
1Department of Pathology, Indiana University, Indianapolis, Indiana.
概括
抗化疗的侵袭性黄囊瘤 (YST) 可能类似于体质癌. 在YST中核β-catenin表达可能表明Wnt信号激活,并构成诊断挑战.
科学领域:
- 在瘤学瘤学.
- 病理学 病理学 病理学
- 分子生物学分子生物学
背景情况:
- 化疗后的黄囊瘤 (YST) 具有腺体/固体表型是具有攻击性和耐化疗性的.
- 这些YSTs表现出与体质癌的重叠形态,使诊断复杂化,特别是在老年患者中.
- 晚期复发很常见,进一步挑战临床和病理学评估.
研究的目的:
- 为了调查核β-catenin表达在化学疗后YSTs的流行率.
- 探索 Wnt 信号激活在 YST 进展中的潜在作用.
- 评估核β-catenin在区分YST和体质癌症中的诊断影响.
主要方法:
- 对34个具有腺体/固体表型的化疗后YST进行了回顾性分析.
- 核β-catenin表达的免疫组织化学.
- 在一组病例中对CTNNB1基因的DNA测序和光 in situ 杂交为i(12p).
主要成果:
- 在评估的YST中,核β-catenin表达在29% (10/34) 观察到.
- 在核β-catenin的测序病例中,CTNNB1变种在50% (3/6) 确诊.
- 所有5个测试的病例都显示出异染色体12p的阳性 [i(12p) ].
结论:
- 化学疗后YST的一个显著子集表现出β-catenin的改变,这表明Wnt信号通路的参与.
- 在YST中核β-catenin表达可能是一个诊断陷,因为在体质癌症中具有类似的表达.
- 对YST进展中的Wnt信号进行进一步调查是有必要的.
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