Comparative study of Rb1, cyclin D1 and p16 immunohistochemistry expression to distinguish lung small-cell carcinoma and large-cell neuroendocrine carcinoma

IF 4.1 2区 医学 Q2 CELL BIOLOGY
Histopathology Pub Date : 2022-05-11 DOI:10.1111/his.14679
G Papaxoinis, A Bille, E McLean, D Nonaka
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引用次数: 4

Abstract

Large‐cell neuroendocrine carcinoma (LCNEC) and small‐cell carcinoma (SCLC) of lung encompass high‐grade neuroendocrine tumour category and share several fundamental features. As both tumours may respond to different treatment modalities and show unique molecular alterations distinction between the two is clinically relevant, but can be challenging due to sampling and fixation issues and shared morphological features.

Abstract Image

Rb1、cyclin D1和p16免疫组化表达对肺小细胞癌和大细胞神经内分泌癌的鉴别研究
目的肺大细胞神经内分泌癌(LCNEC)和小细胞癌(SCLC)属于高级别神经内分泌肿瘤,具有几个基本特征。由于这两种肿瘤可能对不同的治疗方式有反应,并表现出独特的分子改变,两者之间的区别具有临床意义,但由于采样和固定问题以及共同的形态特征,可能具有挑战性。方法采用组织芯片技术(TMA)对手术切除的原发性SCLC (n = 129)和LCNEC (n = 27)进行Rb1、cyclin D1和p16的免疫组化染色,比较两者蛋白的表达模式,确定差异模式。结果各项指标诊断准确率高;Rb1最高,其次是p16和cyclin D1。大多数SCLC具有Rb1−/p16+/cyclin D1 -模式,超过一半的LCNEC具有Rb1+/p16−/cyclin D1+模式。总体而言,Rb1 -和cyclin D1 -的表达模式与SCLC的诊断密切相关,而Rb1+和/或cyclin D1+的表达模式与LCNEC密切相关。使用这种简化的表达模式可使诊断准确率达到97.3%。P16没有增加进一步的歧视。与lcnec相比,sclc中Rb1、cyclin D1和p16表达的异质性不显著。结论利用Rb1、cyclin D1和p16免疫组化技术可准确区分两者。值得注意的是,给定肿瘤样本中的Rb1−/cyclin D1 -模式可以证实SCLC的诊断。我们的结果可以外推并应用于常规诊断样本,如活检和细胞学样本。
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来源期刊
Histopathology
Histopathology 医学-病理学
CiteScore
10.20
自引率
4.70%
发文量
239
审稿时长
1 months
期刊介绍: Histopathology is an international journal intended to be of practical value to surgical and diagnostic histopathologists, and to investigators of human disease who employ histopathological methods. Our primary purpose is to publish advances in pathology, in particular those applicable to clinical practice and contributing to the better understanding of human disease.
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