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黑人与白人患者胰腺管道腺癌的分子差异

Saurabh Mandal¹, Emily A Teslow², Minxuan Huang²

¹Henry Ford Pancreatic Cancer Center, Henry Ford Health, Detroit, Michigan.

Cancer research communications

|December 19, 2024

概括

与白人患者相比,患有胰腺癌的黑人患者的TP53突变率更高,瘤突变负担增加,PD-L1过度表达. 这些分子差异可能解释差异,并影响免疫疗法反应.

科学领域:

在瘤学瘤学.
基因组学就是基因组学.
癌症研究癌症研究

背景情况:

胰腺癌是美国癌症死亡的主要原因.
黑人或非洲裔美国人的胰腺癌发病率更高.
了解与种族相关的分子差异对于解决差异至关重要.

研究的目的:

为了确定与种族相关的独特瘤分子特征,黑白患者患有胰腺管道腺癌.
分析基因组突变和PD-L1表达与种族相关.

主要方法:

从Tempus多式联络数据库中分析非身份化患者记录.
包括瘤测序数据和来自胰腺管道腺癌患者的PD-L1表达.
黑人 (n=452) 和白人 (n=3,797) 患者队列之间的分子特征的比较.

主要成果:

黑人患者的TP53突变患病率更高 (P < 0.001).
在黑人女性中,KRASG12R突变更频繁 (P = 0.007).
黑人患者的瘤突变负担较高 (P < 0.001) 和PD-L1过度表达 (P = 0.047).

结论:

在胰腺管道腺癌中存在与种族相关的分子差异.
这些差异可能会影响患者对免疫治疗的反应.
提高临床试验的多样性对于公平的胰腺癌治疗至关重要.

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