Nature子刊:循环肿瘤反应性淋巴细胞(cTRL)挑战实体瘤的治疗

2023-04-11 白露 医药魔方Pro 发表于上海

过继性细胞疗法(Adoptive cell therapy,ACT)已成为一种很有前景的免疫治疗工具。其中,肿瘤浸润性淋巴细胞(TIL)已在黑色素瘤中显示出强大的抗癌活性 。

过继细胞疗法(Adoptive cell therapy,ACT)已成为一种很有前景的免疫治疗工具。其中,肿瘤浸润淋巴细胞(TIL)已在黑色素瘤中显示出强大的抗癌活性 。

4月10日,美国西北大学的科学家在Nature Biomedical Engineering发文报道,他们首次发现利用新技术可以从血液中非侵入性地分离出肿瘤反应性淋巴细胞——循环肿瘤反应性淋巴细胞(cTRL),而无需从肿瘤中分离。这一发现为ACT治疗难治性癌症打开了新大门,并使其成为临床应用更可行的选择。

 

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鉴于为获取TIL而切除肿瘤会给患者带来巨大风险,导致利用ACT对抗多种类型癌症遇到阻碍。“我们开始设想进入肿瘤的免疫细胞是否会出来,是否能在血液中找到它们,以及是否能找到足够多的它们来进行研究。果不其然,它们存在于血液中。这是第一次在这种情况下研究这些细胞。” 论文通讯作者Shana O. Kelley说道。

先前的研究还详细介绍了用于分离和扩增TIL的新方法,与传统细胞分选相比,免疫磁性细胞分选回收的TIL数量高出30倍,回收TIL的更高水平和多样性加速了TIL的扩增并增强了它们的治疗效力。

 

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在最新的研究中,利用这种微流控免疫磁性细胞分选(microfluidic immunomagnetic cell sorting)技术,Kelley团队在动物血液中发现并分离了TIL样淋巴细胞——cTRL。随后他们测试了cTRL是否具有与TIL相同的杀伤肿瘤细胞的能力。令人惊讶的是,它们做到了。

 

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利用微流控免疫磁性细胞分选法从外周血中分离cTRL(来源:Nature Biomedical Engineering)

 

Kelley团队观察到,分离的cTRL强烈表达CD103,并且在患有皮下肿瘤的小鼠中,从肿瘤中分离的TIL和从血液中分离的快速扩增的CD8+CD103cTRL具有相当效力,且对免疫检查点阻断有类似的反应。他们还发现,从患者外周血中分离的CD8+CD103cTRL与其切除肿瘤中分离的肿瘤细胞共培养,导致干扰素-γ分泌细胞群的富集,其T细胞受体克隆型与患者TIL的克隆型基本重叠。

值得一提的是,cTRL还被发现不仅存在于黑色素瘤中,也存在于结肠癌肺癌乳腺癌中。Kelley说:“这一新的突破让我们提出了一些令人兴奋的设想,例如cTRL是多早在血液中出现的,我们能用这些细胞进行早期诊断和治疗癌症吗?”

总的来说,这项研究提供了新的证据支持CD8cTRL的存在,并强调了这种细胞群对癌症免疫治疗的价值。未来的研究将重点验证cTRL在人源化模型中的治疗效力。

对于微流控免疫磁性细胞分选技术,Kelley表示:“该平台技术可被用在任何一个能够接触到大量患者的主要医疗中心。我们用来捕获细胞的平台非常快,这降低了成本,而且医疗中心可以轻松地处理血液。”

Kelley已基于这项新技术创立了生物技术初创公司CTRL Therapeutics,该公司将向FDA提出申请,推动这项平台技术进入临床试验。据悉,CTRL已于4月10日完成1000万美元种子轮融资。

参考资料:
1# New therapy harnesses patients' blood cells to fight tumors(来源:Medical press)
2# Zongjie Wang et al, Isolation of tumour-reactive lymphocytes from peripheral blood via microfluidic immunomagnetic cell sorting,Nature Biomedical Engineering (2023). DOI: 10.1038/s41551-023-01023-3

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    2023-04-12 1013100771 来自山东省

    谢谢分享

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    2023-04-12 仁术2023 来自吉林省

    不错,学习了。

    0

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    2023-04-12 ms4000001539575937 来自湖北省

    学习

    0

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    2023-04-12 jshbyywk2008 来自河北省

    过继细胞疗法

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=2125365, encodeId=fc392125365c0, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2d114843943, createdName=1013100771, createdTime=Wed Apr 12 08:22:07 CST 2023, time=2023-04-12, status=1, ipAttribution=山东省), GetPortalCommentsPageByObjectIdResponse(id=2125354, encodeId=bc8e2125354b7, content=不错,学习了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=4dfa6526517, createdName=仁术2023, createdTime=Wed Apr 12 07:22:05 CST 2023, time=2023-04-12, status=1, ipAttribution=吉林省), GetPortalCommentsPageByObjectIdResponse(id=2125344, encodeId=4b59212534456, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2e128592359, createdName=ms4000001539575937, createdTime=Wed Apr 12 07:02:14 CST 2023, time=2023-04-12, status=1, ipAttribution=湖北省), GetPortalCommentsPageByObjectIdResponse(id=2125339, encodeId=a15721253395a, content=过继细胞疗法, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2d3d3015017, createdName=jshbyywk2008, createdTime=Wed Apr 12 06:06:09 CST 2023, time=2023-04-12, status=1, ipAttribution=河北省), GetPortalCommentsPageByObjectIdResponse(id=2125338, encodeId=14a72125338a4, content=<a href='/topic/show?id=5b1294122e1' target=_blank style='color:#2F92EE;'>#过继细胞疗法#</a>(Adoptive cell therapy,ACT)已成为一种很有前景的<a href='/topic/show?id=a07f82814ec' target=_blank style='color:#2F92EE;'>#肿瘤免疫治疗#</a>工具。其中,<a href='/topic/show?id=67cd829955f' target=_blank style='color:#2F92EE;'>#肿瘤浸润淋巴细胞#</a>(TIL)已在<a href='/topic/show?id=330410333110' target=_blank style='color:#2F92EE;'>#黑色素瘤#</a>中显示出强大的<a href='/topic/show?id=5cd15549658' target=_blank style='color:#2F92EE;'>#抗癌#</a>活性 。, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=94122, encryptionId=5b1294122e1, topicName=过继细胞疗法), TopicDto(id=82814, encryptionId=a07f82814ec, topicName=肿瘤免疫治疗), TopicDto(id=82995, encryptionId=67cd829955f, topicName=肿瘤浸润淋巴细胞), TopicDto(id=103331, encryptionId=330410333110, topicName=黑色素瘤), TopicDto(id=55496, encryptionId=5cd15549658, topicName=抗癌)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/Random/55971dc507c93968175ce7cc1e177b372a83869f.jpg, createdBy=f63e4754896, createdName=侠胆医心, createdTime=Wed Apr 12 05:25:58 CST 2023, time=2023-04-12, status=1, ipAttribution=上海), GetPortalCommentsPageByObjectIdResponse(id=2125335, encodeId=2a42212533571, content=<a href='/topic/show?id=74f11058521c' target=_blank style='color:#2F92EE;'>#过继性细胞疗法#</a>(Adoptive cell therapy,ACT)已成为一种很有前景的免疫治疗工具。其中,<a href='/topic/show?id=0b95105853ed' target=_blank style='color:#2F92EE;'>#肿瘤浸润性淋巴细胞#</a>(TIL)已在黑色素瘤中显示出强大的抗癌活性 。 此次首次发现利用新技术可以从血液中非侵入性地分离出肿瘤反应性淋巴细胞——<a href='/topic/show?id=959710585435' target=_blank style='color:#2F92EE;'>#循环肿瘤反应性淋巴细胞#</a>(cTRL),而无需从肿瘤中分离,而且特异性可能更高!!这为TIL的广泛应用打开大门!!这是继CAR-T之后,又一个具有关键性突破, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=105852, encryptionId=74f11058521c, topicName=过继性细胞疗法), TopicDto(id=105853, encryptionId=0b95105853ed, topicName=肿瘤浸润性淋巴细胞), TopicDto(id=105854, encryptionId=959710585435, topicName=循环肿瘤反应性淋巴细胞)], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/Random/55971dc507c93968175ce7cc1e177b372a83869f.jpg, createdBy=f63e4754896, createdName=侠胆医心, createdTime=Wed Apr 12 05:22:45 CST 2023, time=2023-04-12, status=1, ipAttribution=上海)]
    2023-04-12 侠胆医心 来自上海

    #过继细胞疗法#(Adoptive cell therapy,ACT)已成为一种很有前景的#肿瘤免疫治疗#工具。其中,#肿瘤浸润淋巴细胞#(TIL)已在#黑色素瘤#中显示出强大的#抗癌#活性 。

    0

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    2023-04-12 侠胆医心 来自上海

    #过继性细胞疗法#(Adoptive cell therapy,ACT)已成为一种很有前景的免疫治疗工具。其中,#肿瘤浸润性淋巴细胞#(TIL)已在黑色素瘤中显示出强大的抗癌活性 。 此次首次发现利用新技术可以从血液中非侵入性地分离出肿瘤反应性淋巴细胞——#循环肿瘤反应性淋巴细胞#(cTRL),而无需从肿瘤中分离,而且特异性可能更高!!这为TIL的广泛应用打开大门!!这是继CAR-T之后,又一个具有关键性突破

    0

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