Nat Med:多发性骨髓瘤患者在BCMA靶向CAR-T治疗后或引起BCMA纯合缺失

2021-02-24 xiaozeng MedSci原创

B细胞成熟抗原(BCMA)作为多种免疫疗法的靶点,也是多发性骨髓瘤(MM)中与肿瘤负荷相关的生物标志物。

B细胞成熟抗原(BCMA)作为多种免疫疗法的靶点,也是多发性骨髓瘤(MM)中与肿瘤负荷相关的生物标志物。BCMA的编码基因TNFRSF17位于16号染色体的短臂上,其几乎仅在浆细胞和B细胞上表达。

既往研究显示,MM患者血清中可溶性sBCMA的水平升高,且与疾病的发生相关。BCMA相关免疫疗法包括CAR(嵌合抗原受体)-T细胞疗法,其在复发性/难治性MM中显示出潜在的治疗活性。虽然目前已在少数患者中观察到BCMA抗原表达的降低或丧失,但仍未阐明BCMA靶向CAR-T细胞疗法复发的肿瘤内在机制。


在该研究中,研究人员报告了一名参与KarMMa试验(NCT03361748)的携带BCMA不可逆缺失的MM患者,该患者在接受抗BCMA CAR-T治疗后出现了疾病的进展。

患者的临床特征和BCMA的表达情况

研究人员发现,TNFRSF17(BCMA)基因的纯合缺失是免疫逃逸的一个潜在机制。此外,进一步的研究显示,在168例MM患者中有37例出现了TNFRSF17杂合缺失或16号染色体部分缺失,其中,33例超单倍体MM患者中的28例先前并未接受BCMA靶向治疗,这说明从理论上而言,TNFRSF17杂合缺失可能是免疫治疗后BCMA缺失的一大危险因素。


总而言之,该研究揭示了CAR-T细胞治疗前后16号染色体畸变的罕见存在,这与影响TNFRSF17基因座以逃避BCMA靶向免疫疗法的基因组不稳定性有关。


原始出处:

Da Vià, M.C., Dietrich, O., Truger, M. et al. Homozygous BCMA gene deletion in response to anti-BCMA CAR T cells in a patient with multiple myeloma. Nat Med (22 February 2021).

 

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1781417, encodeId=324f1e814172e, content=<a href='/topic/show?id=8ce8405907' target=_blank style='color:#2F92EE;'>#CAR-#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4059, encryptionId=8ce8405907, topicName=CAR-)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Wed Nov 10 23:35:45 CST 2021, time=2021-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1885013, encodeId=6a281885013e0, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Feb 05 08:35:45 CST 2022, time=2022-02-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1890223, encodeId=03c41890223a3, content=<a href='/topic/show?id=760c430895a' target=_blank style='color:#2F92EE;'>#多发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43089, encryptionId=760c430895a, topicName=多发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04d6114, createdName=jml2009, createdTime=Fri Dec 17 11:35:45 CST 2021, time=2021-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1460232, encodeId=7df9146023262, content=<a href='/topic/show?id=833732e80d' target=_blank style='color:#2F92EE;'>#BCMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3278, encryptionId=833732e80d, topicName=BCMA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=85f46265562, createdName=yykkxiaodou, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1610922, encodeId=c63a1610922d5, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=)]
    2021-11-10 仁者大医
  2. [GetPortalCommentsPageByObjectIdResponse(id=1781417, encodeId=324f1e814172e, content=<a href='/topic/show?id=8ce8405907' target=_blank style='color:#2F92EE;'>#CAR-#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4059, encryptionId=8ce8405907, topicName=CAR-)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Wed Nov 10 23:35:45 CST 2021, time=2021-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1885013, encodeId=6a281885013e0, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Feb 05 08:35:45 CST 2022, time=2022-02-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1890223, encodeId=03c41890223a3, content=<a href='/topic/show?id=760c430895a' target=_blank style='color:#2F92EE;'>#多发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43089, encryptionId=760c430895a, topicName=多发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04d6114, createdName=jml2009, createdTime=Fri Dec 17 11:35:45 CST 2021, time=2021-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1460232, encodeId=7df9146023262, content=<a href='/topic/show?id=833732e80d' target=_blank style='color:#2F92EE;'>#BCMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3278, encryptionId=833732e80d, topicName=BCMA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=85f46265562, createdName=yykkxiaodou, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1610922, encodeId=c63a1610922d5, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=)]
    2022-02-05 liye789132251
  3. [GetPortalCommentsPageByObjectIdResponse(id=1781417, encodeId=324f1e814172e, content=<a href='/topic/show?id=8ce8405907' target=_blank style='color:#2F92EE;'>#CAR-#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4059, encryptionId=8ce8405907, topicName=CAR-)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Wed Nov 10 23:35:45 CST 2021, time=2021-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1885013, encodeId=6a281885013e0, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Feb 05 08:35:45 CST 2022, time=2022-02-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1890223, encodeId=03c41890223a3, content=<a href='/topic/show?id=760c430895a' target=_blank style='color:#2F92EE;'>#多发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43089, encryptionId=760c430895a, topicName=多发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04d6114, createdName=jml2009, createdTime=Fri Dec 17 11:35:45 CST 2021, time=2021-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1460232, encodeId=7df9146023262, content=<a href='/topic/show?id=833732e80d' target=_blank style='color:#2F92EE;'>#BCMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3278, encryptionId=833732e80d, topicName=BCMA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=85f46265562, createdName=yykkxiaodou, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1610922, encodeId=c63a1610922d5, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=)]
    2021-12-17 jml2009
  4. [GetPortalCommentsPageByObjectIdResponse(id=1781417, encodeId=324f1e814172e, content=<a href='/topic/show?id=8ce8405907' target=_blank style='color:#2F92EE;'>#CAR-#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4059, encryptionId=8ce8405907, topicName=CAR-)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Wed Nov 10 23:35:45 CST 2021, time=2021-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1885013, encodeId=6a281885013e0, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Feb 05 08:35:45 CST 2022, time=2022-02-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1890223, encodeId=03c41890223a3, content=<a href='/topic/show?id=760c430895a' target=_blank style='color:#2F92EE;'>#多发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43089, encryptionId=760c430895a, topicName=多发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04d6114, createdName=jml2009, createdTime=Fri Dec 17 11:35:45 CST 2021, time=2021-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1460232, encodeId=7df9146023262, content=<a href='/topic/show?id=833732e80d' target=_blank style='color:#2F92EE;'>#BCMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3278, encryptionId=833732e80d, topicName=BCMA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=85f46265562, createdName=yykkxiaodou, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1610922, encodeId=c63a1610922d5, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=)]
    2021-02-26 yykkxiaodou
  5. [GetPortalCommentsPageByObjectIdResponse(id=1781417, encodeId=324f1e814172e, content=<a href='/topic/show?id=8ce8405907' target=_blank style='color:#2F92EE;'>#CAR-#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4059, encryptionId=8ce8405907, topicName=CAR-)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Wed Nov 10 23:35:45 CST 2021, time=2021-11-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1885013, encodeId=6a281885013e0, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sat Feb 05 08:35:45 CST 2022, time=2022-02-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1890223, encodeId=03c41890223a3, content=<a href='/topic/show?id=760c430895a' target=_blank style='color:#2F92EE;'>#多发性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43089, encryptionId=760c430895a, topicName=多发性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04d6114, createdName=jml2009, createdTime=Fri Dec 17 11:35:45 CST 2021, time=2021-12-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1460232, encodeId=7df9146023262, content=<a href='/topic/show?id=833732e80d' target=_blank style='color:#2F92EE;'>#BCMA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3278, encryptionId=833732e80d, topicName=BCMA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=85f46265562, createdName=yykkxiaodou, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1610922, encodeId=c63a1610922d5, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Fri Feb 26 14:35:45 CST 2021, time=2021-02-26, status=1, ipAttribution=)]

相关资讯

Eur Radiol: 骨髓ADC值是否可指导临床预测多发性骨髓瘤患者的预后?

多发性骨髓瘤患者的疾病进展和死亡风险分层对于早期识别需要不同治疗策略的高风险患者十分重要

欧洲接受CAR-T疗法Ciltacabtagene Autoleucel(Cilta-cel)的加速评估,以治疗多发性骨髓瘤

Ciltacabtagene Autoleucel(Cilta-cel)正在开发中,用于治疗复发难治多发性骨髓瘤(MM)患者。

Br J Cancer:酯酶基因表达水平在多发性骨髓瘤中的预后意义

酯酶家族是水解酶超家族的一个子家族,其主要功能为水解酯键。目前已鉴定出许多不同的酯酶,其底物特异性和生物学功能各不相同,且既往研究显示,在癌症中特定酯酶的表达失调。

Eur Radiol:如何评价多发性骨髓瘤的结构与异质性?

将纹理分析技术应用在多发性骨髓瘤CT图像上,可以获得更多的信息,从而更准确地表征肿瘤的结构和异质性。

Nat Commun:多发性骨髓瘤患者中BCMA的双等位基因缺失引起CAR-T疗法耐药性的产生

靶向BCMA(B细胞成熟抗原)的嵌合抗原受体(CAR)T细胞疗法目前已在复发性难治性的多发性骨髓瘤(MM)中显示出了深远且持久的反应效果

Clin Cancer Res:VLA4靶向纳米颗粒可有效靶向治疗耐药的难治性骨髓瘤!

在多发性骨髓瘤中,耐药细胞是化疗后复发或进展的基础。细胞粘附介导的耐药性(CAM-DR)是骨髓瘤细胞(MMC)在化疗后生存的一种既定机制,其标志物在残留病灶中表达上调。