人类脑膜瘤没有显示神经内分泌区分的证据
Sofie Eline Tollefsen1, Anders Hagen Jarmund1, Ole Solheim2,3
1Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology (NTNU), Trondheim, Norway.
概括
这项研究研究了脑膜瘤中的神经内分泌标记物,发现神经元特异性酶 (NSE) 和CD56存在,但缺乏神经内分泌差异的证据,与MEN1综合征假设相反.
科学领域:
- 神经瘤学神经瘤学
- 瘤生物学 瘤生物学
- 内分泌学 在内分泌学.
背景情况:
- 脑膜瘤是异质的瘤,被认为与MEN1综合征有关.
- 人体静止素受体 (SSTRs) 的瘤表达类似于神经内分泌瘤.
- 脑膜瘤中神经内分泌的分化需要进一步研究.
研究的目的:
- 为了探索脑膜瘤中神经内分泌的分化.
- 为了研究特定的神经内分泌标记物:CD56,染色体A/B/C,NSE,分泌素和synaptophysin.
- 为了将发现与世卫组织等级,瘤亚型和SSTR2免疫活性相关联.
主要方法:
- 对162名脑内膜瘤患者组织微阵列的免疫组合化学分析.
- 使用手动和数字方法评估神经内分泌标志物免疫活性.
- 传输电子显微镜 (TEM) 用于检测分泌颗粒.
主要成果:
- 神经元特异性酶 (NSE) 和CD56分别在91%和44%的脑膜瘤中被检测出来.
- 染色素B被检测到16%;其他标记物大多是负的.
- 在世卫组织2级瘤中,NSE的水平较高,与SSTR2免疫活性相关;没有发现分泌颗粒.
结论:
- 这项研究不支持脑膜瘤中神经内分泌的分化.
- 缺少染色素A和synaptophysin表明神经内分泌特征有限.
- 结果表明脑膜瘤与MEN1综合征的神经内分泌特征不一致.
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