Eur Urol:基于二代RNA测序的嫌色性肾细胞癌及相关癌细胞肿瘤的生物标记鉴定

2020-05-07 AlexYang MedSci原创

肾细胞肿瘤(RCCs)是一种异质性肿瘤。最近的测序研究阐释了RCC组织学亚型的各种分子特性,其中包括了嫌色性肾细胞癌。

肾细胞肿瘤(RCCs)是一种异质性肿瘤。最近的测序研究阐释了RCC组织学亚型的各种分子特性,其中包括了嫌色性肾细胞癌。

最近,有研究人员鉴定了与ChRCC相关的基因表达和生物标记特性。研究人员对来自癌症基因组数据库和内部研究的1049个RCC样本进行了全面的RNA测序数据分析。研究发现,所有的原发性和转移性经典ChRCCs的FOXI1、RHCG蛋白和LINC01187转录本均表现出了同质性的阳性标记。具有嗜酸瘤细胞特性、嗜酸粒细胞瘤和混合嗜酸细胞瘤的未分类的RCC以及除了2例嗜酸性ChRCC意外的所有ChRCC案例均染色为阳性。重要的是,所有其他亚型的转移和原发性RCC的FOXI1、RHCG或LINC01187均未显示明确的染色。在正常的肾脏中,FOXI1、RHCG蛋白和LINC01187能够在远端肾单位部分检测到,尤其是在嵌合细胞中。另外,FOXI1和LINC011872病灶表达和高尔基体样RHCG染色的2例嗜酸性ChRCC在DNA测序中发现MTOR基因存在变异。

最后,研究人员指出,他们阐释了RCC特异性亚型生物标记的鉴定和验证方法,从而协助细胞来源的确定,进而促进肾肿瘤的准确分类和诊断。

原始出处:

Skala SL, Wang X, Zhang Y et al. Next-generation RNA Sequencing-based Biomarker Characterization of Chromophobe Renal Cell Carcinoma and Related Oncocytic Neoplasms. Eur Urol. 13 April 2020

 

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    2020-05-09 yxch36
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