Brit J Cancer:PD-L2和PD-L1表达在食管癌患者中预后和临床意义

2020-03-25 MedSci原创 MedSci原创

PD-L2和PD-L1与食管癌患者的不良预后相关,这支持了PD-L2作为食管癌预后生物标志物的作用。

PD-1/PD-L1通路在肿瘤免疫学中发挥着重要作用,其可作为基于免疫治疗的靶点。然而,对于PD-1的另一种配体PD-L2,其与人类癌症临床结局的关系尚不清楚。

近日,肿瘤领域权威杂志British Journal of Cancer上发表了一篇研究文章,研究人员使用了437例手术切除和100例内镜切除的食管癌患者(鳞状细胞癌,n=483;腺癌,n=36;其他类型,n=18)数据库通过免疫组化的手段检测PD-L2和PD-L1分子的表达情况。

与PD-L2阴性患者(n=366, 83.8%)相比,PD-L2阳性患者(n=71, 16.2%)总体生存率较差(对数秩检验P=0.011)。PD-L2与PD-L1表达之间无显著相关性。多重免疫荧光显示PD-L2和PD-L1的表达模式存在差异。在早期肿瘤中,PD-L2的表达较PD-L1更为频繁。

由此可见,PD-L2和PD-L1与食管癌患者的不良预后相关,这支持了PD-L2作为食管癌预后生物标志物的作用。考虑到PD-L2和PD-L1在表达时间和对化疗药物的反应方面有不同的特点,评估PD-L2和PD-L1的表达可能具有重要的临床意义。

原始出处:

Kazuo Okadome,et al.Prognostic and clinical impact of PD-L2 and PD-L1 expression in a cohort of 437 oesophageal cancers.British Journal of Cancer.2020.https://www.nature.com/articles/s41416-020-0811-0

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    2020-05-02 wushaoling
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    2020-03-27 smartjoy
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    2020-03-27 zhouqu_8

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