Co-expression of CD39 and CD103 identifies tumor-reactive CD8 T cells in human solid tumors.

Co-expression of CD39 and CD103 identifies tumor-reactive CD8 T cells in human solid tumors.
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DOI:
10.1038/s41467-018-05072-0
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发表时间:
2018-07-13
影响因子:
16.6
通讯作者:
Weinberg AD
Weinberg AD
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Duhen T;Duhen R;Montler R;Moses J;Moudgil T;de Miranda NF;Goodall CP;Blair TC;Fox BA;McDermott JE;Chang SC;Grunkemeier G;Leidner R;Bell RB;Weinberg AD

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识别癌症患者的肿瘤抗原特异性 T 细胞对于免疫疗法的诊断和治疗具有重要意义。在这里,我们发现 CD103+CD39+ 肿瘤浸润 CD8 T 细胞 (CD8 TIL) 在原发性和转移性肿瘤中富集肿瘤反应性细胞。该 CD8 TIL 子集存在于六种不同的恶性肿瘤中,并表现出耗尽的组织驻留记忆表型。 CD103+CD39+CD8 TIL 具有独特的 T 细胞受体 (TCR) 库,T 细胞克隆在肿瘤中扩增,但在外周出现的频率较低。 CD103+CD39+CD8 TIL 还以 MHC I 类依赖性方式有效杀死自体肿瘤细胞。最后,头颈癌患者的 CD103+CD39+CD8 TIL 频率较高与较好的总体生存率相关。因此,我们的数据描述了一种检测肿瘤反应性 CD8 TIL 的方法,该方法将有助于定义现有免疫疗法的机制,并可能导致未来的过继性 T 细胞癌症疗法。识别和计数肿瘤特异性 CD8 T 细胞对于评估癌症预后和治疗效果非常重要。作者在此表明,CD39 和 CD103 标记了肿瘤浸润性 CD8 T 细胞的一个子集,这些细胞具有肿瘤反应性,并表现出耗尽或组织驻留记忆 T 细胞的特征。
Identifying tumor antigen-specific T cells from cancer patients has important implications for immunotherapy diagnostics and therapeutics. Here, we show that CD103+CD39+ tumor-infiltrating CD8 T cells (CD8 TIL) are enriched for tumor-reactive cells both in primary and metastatic tumors. This CD8 TIL subset is found across six different malignancies and displays an exhausted tissue-resident memory phenotype. CD103+CD39+ CD8 TILs have a distinct T-cell receptor (TCR) repertoire, with T-cell clones expanded in the tumor but present at low frequencies in the periphery. CD103+CD39+ CD8 TILs also efficiently kill autologous tumor cells in a MHC-class I-dependent manner. Finally, higher frequencies of CD103+CD39+ CD8 TILs in patients with head and neck cancer are associated with better overall survival. Our data thus describe an approach for detecting tumor-reactive CD8 TILs that will help define mechanisms of existing immunotherapy treatments, and may lead to future adoptive T-cell cancer therapies. Identifying and enumerating tumor-specific CD8 T cells are important for assessing cancer prognosis and therapy efficacy. Here the authors show that CD39 and CD103 mark a subset of tumor-infiltrating CD8 T cells that are tumor-reactive and exhibit characteristics of exhausted or tissue-resident memory T cells.
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