EUR J Cancer:外周血CD8效应记忆T细胞与ipilimumab治疗的IV期黑素瘤结果具有相关性

2017-12-31 MedSci MedSci原创

记忆T细胞(TM),是人体免疫细胞。人体免疫的第三道防线中分为两部分,一是体液免疫、二是细胞免疫。T细胞分裂和分化后,会分别形成记忆T细胞和效应T细胞,而记忆T细胞则会在下一次抗原入侵时再次将记忆中的杀毒方法再次调动出来,再次破坏靶细胞即受病菌或病毒感染的一般,释放出靶细胞中的抗原。

记忆T细胞(TM),是人体免疫细胞。人体免疫的第三道防线中分为两部分,一是体液免疫、二是细胞免疫。T细胞分裂和分化后,会分别形成记忆T细胞和效应T细胞,而记忆T细胞则会在下一次抗原入侵时再次将记忆中的杀毒方法再次调动出来,再次破坏靶细胞即受病菌或病毒感染的一般,释放出靶细胞中的抗原。

目前尚不清楚外周血中T细胞表型对ipilimumab治疗后的总生存(OS)的影响。为此,研究人员分析了137例晚期黑素瘤患者血液中单核细胞在ipilimumab治疗不同时间点的情况。结果显示, ICD8效应记忆(EM1T细胞的高频出现(>13%)标志这更长的OSp <0.029)和更高的临床缓解率(p <0.01)。这些EM1细胞的出现频率和M型分类对OS有独立的影响(HR=1.5p=0.033HR=1.9p=0.007)。相反,晚期分化效应记忆CD8细胞的高频出现(> 23.8%)与OS呈负相关(p=0.034),但与临床响应无关。

该项试验的观察结果显示,CD8 EM1细胞和CD8细胞的变化是ipilimumab治疗效果的重要的临床表征。 

原始出处:

Wistuba-Hamprecht, Kilian, et al. "Peripheral CD8 effector-memory type 1 T-cells correlate with outcome in ipilimumab-treated stage IV melanoma patients." European Journal of Cancer 2017 73: 61-70. doi.org/10.1016/j.ejca.

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    2018-09-23 snf701207
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