摘要
免疫疗法已经彻底改变了许多实体瘤的治疗方式。在结直肠癌中,证据表明,由于新抗原负荷增加和有利的肿瘤微环境,微卫星高(MSI-H)肿瘤对免疫检查点阻断最敏感。事实上,Pembrolizumab现在是这类患者的一线选择。然而,MSI-H肿瘤代表少数和一部分患者的进展,尽管最初有所反应。试验正在研究不同的免疫治疗组合策略,以增强免疫原性较低的结直肠肿瘤的免疫反应。这种策略包括双重免疫检查点阻断,将免疫检查点抑制剂与其他治疗方式如放疗、化疗或其他生物或靶向制剂相结合。此外,越来越多的人开始识别生物标志物,以更好地选择最有可能对免疫疗法产生反应的患者,并了解内在和获得性耐药机制。除了MSI-H肿瘤之外,有充分的理由表明,具有DNA聚合酶ε和DNA聚合酶δ变化的肿瘤也可能对免疫治疗有反应,并且在该亚群中的试验正在进行中。其他策略,如用烷化剂引发O6-甲基鸟嘌呤脱氧核糖核酸甲基转移酶沉默的肿瘤,使其接受免疫检查点阻断,也在研究中。在这里,我们讨论了不同的结肠直肠亚群及其对免疫检查点阻断反应的可能性,以及克服成功临床结果障碍的策略。我们总结了已发表的临床试验的证据,并概述了正在进行的试验,同时讨论了新的免疫治疗策略,如过继细胞疗法和癌症疫苗。
关键词: 结直肠癌,免疫疗法,免疫检查点抑制剂,微卫星稳定,过继细胞疗法,癌症疫苗。
图形摘要
[http://dx.doi.org/10.3322/caac.21492] [PMID: 30207593]
[http://dx.doi.org/10.1136/gutjnl-2015-310912] [PMID: 26818619]
[http://dx.doi.org/10.1016/S0140-6736(19)32319-0] [PMID: 31631858]
[http://dx.doi.org/10.3390/cancers11101558]
[http://dx.doi.org/10.1016/S2468-1253(19)30147-5] [PMID: 31105047]
[http://dx.doi.org/10.1111/his.13975] [PMID: 31433515]
[PMID: 10888773]
[http://dx.doi.org/10.1136/jclinpath-2011-200340] [PMID: 22259177]
[http://dx.doi.org/10.1016/S0002-9440(10)63994-6] [PMID: 11159189]
[http://dx.doi.org/10.5114/pjp.2015.54953] [PMID: 26619098]
[http://dx.doi.org/10.1038/nm.3967] [PMID: 26457759]
[http://dx.doi.org/10.1158/1078-0432.CCR-17-2484] [PMID: 29180604]
[http://dx.doi.org/10.18632/oncotarget.22169] [PMID: 29285252]
[http://dx.doi.org/10.1126/science.aaa4971]
[http://dx.doi.org/10.3389/fimmu.2020.00369] [PMID: 32210966]
[http://dx.doi.org/10.1038/nrc.2015.12] [PMID: 26822575]
[http://dx.doi.org/10.1158/1078-0432.CCR-15-2879] [PMID: 26994146]
[http://dx.doi.org/10.1111/j.1365-2559.2006.02549.x] [PMID: 17204026]
[http://dx.doi.org/10.2353/jmoldx.2008.070082] [PMID: 18165277]
[http://dx.doi.org/10.1038/nm.3174] [PMID: 23584090]
[http://dx.doi.org/10.1038/nm.3175] [PMID: 23584089]
[http://dx.doi.org/10.1002/ijc.28387] [PMID: 23852808]
[http://dx.doi.org/10.1038/ncomms15657] [PMID: 28561046]
[http://dx.doi.org/10.1016/j.annonc.2020.04.220]
[http://dx.doi.org/10.1038/ng.3224] [PMID: 25706627]
[http://dx.doi.org/10.1038/oncsis.2017.48] [PMID: 28692036]
[http://dx.doi.org/10.1016/j.ccell.2019.05.013] [PMID: 31287991]
[http://dx.doi.org/10.1016/j.ctrv.2018.02.004] [PMID: 29502037]
[http://dx.doi.org/10.1177/1756284820917527] [PMID: 32536977]
[http://dx.doi.org/10.1016/j.clcc.2020.02.002] [PMID: 32173280]
[http://dx.doi.org/10.1007/s11523-019-00690-0] [PMID: 31786718]
[http://dx.doi.org/10.1038/s41575-019-0126-x] [PMID: 30886395]
[PMID: 30543589]
[PMID: 29743854]
[http://dx.doi.org/10.1097/PAP.0000000000000234] [PMID: 30932972]
[http://dx.doi.org/10.1016/j.dnarep.2019.03.009] [PMID: 30959407]
[http://dx.doi.org/10.1016/j.dnarep.2015.11.019] [PMID: 26704428]
[http://dx.doi.org/10.1093/jncics/pky056]
[http://dx.doi.org/10.1016/j.trecan.2019.10.006] [PMID: 31813455]
[http://dx.doi.org/10.1155/2020/2861240] [PMID: 32733937]
[http://dx.doi.org/10.1186/s13073-017-0424-2] [PMID: 28420421]
[http://dx.doi.org/10.1186/s12885-020-6553-9] [PMID: 31992245]
[http://dx.doi.org/10.7150/jca.25187] [PMID: 31205530]
[http://dx.doi.org/10.1038/s41416-019-0599-y] [PMID: 31607751]
[http://dx.doi.org/10.1186/s40425-019-0647-4] [PMID: 31307554]
[http://dx.doi.org/10.1186/s12935-019-0929-4] [PMID: 31406485]
[http://dx.doi.org/10.3390/ijms20215452] [PMID: 31683784]
[http://dx.doi.org/10.1126/science.aaf1490]
[http://dx.doi.org/10.1016/j.ejca.2020.02.038] [PMID: 32278982]
[http://dx.doi.org/10.1002/gcc.22733] [PMID: 30664300]
[http://dx.doi.org/10.1093/annonc/mdz134] [PMID: 31038663]
[http://dx.doi.org/10.1007/s11523-015-0397-2] [PMID: 26538496]
[http://dx.doi.org/10.1093/annonc/mdt547] [PMID: 24379162]
[http://dx.doi.org/10.1038/sj.bjc.6605712] [PMID: 20517307]
[http://dx.doi.org/10.1016/j.ejca.2018.11.016] [PMID: 30579113]
[http://dx.doi.org/10.12998/wjcc.v2.i12.835] [PMID: 25516857]
[http://dx.doi.org/10.1016/j.ctrv.2019.101935] [PMID: 31821983]
[http://dx.doi.org/10.6004/jnccn.2017.0016] [PMID: 28188185]
[http://dx.doi.org/10.1002/cam4.1245] [PMID: 29072370]
[http://dx.doi.org/10.1016/j.ejca.2017.07.026] [PMID: 28846956]
[http://dx.doi.org/10.1016/S2468-1253(16)30014-0] [PMID: 28404093]
[http://dx.doi.org/10.1200/JCO.2009.26.7609] [PMID: 20516446]
[http://dx.doi.org/10.1056/NEJMoa1500596] [PMID: 26028255]
[http://dx.doi.org/10.1016/S1470-2045(17)30422-9] [PMID: 28734759]
[http://dx.doi.org/10.1200/JCO.2017.76.9901] [PMID: 29355075]
[http://dx.doi.org/10.1634/theoncologist.2019-0129] [PMID: 31147488]
[http://dx.doi.org/10.1001/jamaoncol.2020.0910] [PMID: 32379280]
[http://dx.doi.org/10.1001/jamaoncol.2020.0504] [PMID: 32379270]
[http://dx.doi.org/10.1186/s13046-019-1497-0] [PMID: 31842958]
[http://dx.doi.org/10.1093/annonc/mdz113] [PMID: 30918950]
[http://dx.doi.org/10.1016/S1470-2045(19)30027-0] [PMID: 31003911]
[http://dx.doi.org/10.1186/s12885-020-07169-6] [PMID: 32698790]
[http://dx.doi.org/10.1200/JCO.2016.66.6826] [PMID: 27432916]
[http://dx.doi.org/10.1002/ijc.33115] [PMID: 32449172]
[http://dx.doi.org/10.1038/s41591-020-0805-8] [PMID: 32251400]
[http://dx.doi.org/10.1200/JCO.19.03296] [PMID: 32343640]
[http://dx.doi.org/10.1002/ijc.25283] [PMID: 20198617]
[http://dx.doi.org/10.1158/2159-8290.CD-16-1223] [PMID: 27903500]
[http://dx.doi.org/10.1093/jnci/djy004] [PMID: 29471527]
[http://dx.doi.org/10.1186/s13073-017-0434-0] [PMID: 28539123]
[http://dx.doi.org/10.1038/s41591-018-0014-x] [PMID: 29686425]
[http://dx.doi.org/10.1093/annonc/mdx108] [PMID: 28368458]
[http://dx.doi.org/10.1126/science.aan4236]
[http://dx.doi.org/10.3390/jcm9051458] [PMID: 32414103]
[http://dx.doi.org/10.3390/biom10050666] [PMID: 32344837]
[http://dx.doi.org/10.1016/j.drup.2020.100718] [PMID: 32736034]
[http://dx.doi.org/10.1002/hon.2591] [PMID: 31187533]
[http://dx.doi.org/10.3390/jcm9010182] [PMID: 31936611]
[http://dx.doi.org/10.1182/blood-2014-05-552729] [PMID: 24876563]
[http://dx.doi.org/10.1016/j.blre.2018.11.002] [PMID: 30528964]
[http://dx.doi.org/10.1002/hon.2595] [PMID: 31187535]
[http://dx.doi.org/10.1186/s40425-017-0222-9] [PMID: 28344808]
[http://dx.doi.org/10.1007/s10350-004-6659-1] [PMID: 12794582]
[http://dx.doi.org/10.1016/j.ymthe.2017.03.010] [PMID: 28366766]
[http://dx.doi.org/10.1002/hep.23320] [PMID: 20034045]
[http://dx.doi.org/10.1093/annonc/mdz157.008]
[http://dx.doi.org/10.1016/j.ctrv.2020.102030] [PMID: 32505807]
[http://dx.doi.org/10.1200/JCO.2000.18.1.148] [PMID: 10623705]
[PMID: 29541190]
[http://dx.doi.org/10.1007/s00262-008-0477-6] [PMID: 18297281]
[http://dx.doi.org/10.1158/1078-0432.CCR-08-2227] [PMID: 19188184]
[http://dx.doi.org/10.3390/vaccines8030371] [PMID: 32664247]
[http://dx.doi.org/10.1126/science.aau0447]
[http://dx.doi.org/10.1158/1538-7445.AM2018-2603]