ARCH PATHOL LAB MED:肿瘤浸润淋巴细胞程序性死亡受体-1的表达与非小细胞肺癌程序性死亡配体-1的表达的相关性

2018-11-15 MedSci MedSci原创

活化的T细胞上程序性死亡配体-1(PD-L1)和程序性死亡受体-1(PD-1)之间的相互作用可递送抑制免疫应答的抑制信号。肿瘤可以表达PD-L1并逃避免疫系统。在晚期非小细胞肺癌中,肿瘤浸润淋巴细胞(TIL)中PD-1的表达与肿瘤细胞(TC)中的PD-L1表达相关。然而,这种关系尚未在早期疾病中进行全面探索。因此,本研究的主要目的是探索PD-1和PD-L1在非小细胞肺癌肿瘤样本中的相关性,特别是在

活化的T细胞上程序性死亡配体-1PD-L1)和程序性死亡受体-1PD-1)之间的相互作用可递送抑制免疫应答的抑制信号。肿瘤可以表达PD-L1并逃避免疫系统。在晚期非小细胞肺癌中,肿瘤浸润淋巴细胞(TIL)中PD-1的表达与肿瘤细胞(TC)中的PD-L1表达相关。然而,这种关系尚未在早期疾病中进行全面探索。因此,本研究的主要目的是探索PD-1PD-L1在非小细胞肺癌肿瘤样本中的相关性,特别是在I期疾病。

研究人员对来自非小细胞肺癌肿瘤的全组织切片通过免疫组织化学进行回顾性评估PD-1PD-L1表达。基于TILPD-1阳性和TC和肿瘤浸润性免疫细胞(IC)中PD-L1阳性的细胞百分比评分

结果显示,在161非小细胞肺癌病例(91%)中,147例观察到TIL PD-1的表达。PD-1阴性的大多数病例在TC中也缺乏PD-L1。在TILs中具有最高PD-1表达的68个病例包括3349%)个在TCIC中具有PD-L1表达的患者。在TILPD-1表达升高和TCPD-L1升高(P = .01)和ICsP = .003)的患者中观察到相关性较为明显。当2组合在一起时,PD-1的表达也与TCICPD-L1的增加相关(P <.001)。最后,具有阴性PD-1PD-L1表达的I期患者显示出疾病特异性存活增加的趋势。

结果表明,在TILPD-1的表达与TCIC中的PD-L1表达相关。此外,PD-1PD-L1的阴性表达表明即使在疾病早期阶段,疾病特异性存活的趋势也是如此。

原始出处:

Paloma del C. Monroig-Bosque, Brandon Driver, Correlation Between Programmed Death Receptor-1 Expression in Tumor-Infiltrating Lymphocytes and Programmed Death Ligand-1 Expression in Non–Small Cell Lung Carcinoma.

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    2019-08-08 yb6560
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    2018-11-17 hb2008ye
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    2018-11-16 ylzr123

    认真学习,不断进步,把经验分享给同好。点赞了!

    0

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