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在表皮卵巢癌中,p53的免疫组合化学和分子模式对生殖系BRCA1/2变体负

Susanna Ronchi¹, Sofia Facchi¹, Eleonora Di Lauro¹

¹Unit of Pathology, Ospedale di Circolo, ASST SetteLaghi, Research Center for Familial and Hereditary Tumors, Department of Medicine and Surgery, University of Insubria, 21100 Varese, Italy.

Pathology, research and practice

|February 16, 2024

概括

在上皮卵巢癌 (EOC) 致癌过程中,TP53的改变是常见的早期事件,无论BRCA突变状态如何. 输卵管中异常的p53模式,包括STIC,与EOC发育有关.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
病理学病理学病理学

背景情况:

在上皮卵巢癌 (EOC) 中的生殖线或体质BRCA变异与TP53异常相关.
在BRCA突变患者中,异常的p53免疫组织化学模式是高度EOC和STIC等癌前病变的特征.
关于p53在没有BRCA突变的患者EOC致癌中的作用的数据有限.

研究的目的:

在缺乏生殖系BRCA1/2突变的EOC中研究TP53突变和p53表达模式.
为了检查这些零星的EOC病例的输卵管中存在STIC和"p53签名".
为了确定TP53的变化是否是零星EOC发展的早期事件.

主要方法:

分析TP53突变状态和免疫组织化学p53表达模式.
在输卵管组织中评估血清管内皮内癌 (STIC) 和"p53签名".
具有和没有生殖线BRCA突变的EOC中发现的结果的比较.

主要成果:

TP53的变化很频繁,在零星的EOC中很早就会发生,包括低级癌瘤.
在输卵管中观察到异常的p53模式,与高度EOC相关的STIC.
TP53异常似乎是EOC致癌的常见早期事件,无论BRCA状态如何.

结论:

TP53异常是表皮卵巢癌发展中最常见和最早的分子事件.
在EOC致癌过程中TP53变化的作用是独立于BRCA突变状态的.
输卵管中异常的p53表达是零星EOC的一个重要发现.

关键词:

卵巢上皮癌是卵巢癌的表皮癌.P53免疫组织化学模式在TP53的变体中.野生类型的生殖基 BRCA1/21/2

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