Blood:弥漫性大B细胞淋巴瘤CD37基因免疫优势位点的高发突变

2019-08-02 MedSci MedSci原创

四次跨膜蛋白CD37主要表达于成熟B淋巴细胞表面,目前正被作为治疗B细胞淋巴瘤的新靶点进行研究。近期,研究人员发现在Cd37敲除的小鼠中,CD37缺失可诱导形成自发性B细胞淋巴瘤,而且还与弥漫性大B细胞淋巴瘤(DLBCL)患者的预后不良相关。

中心点:

CD37基因上的功能丧失性突变主要见于在免疫优势位点的弥漫性大B细胞淋巴瘤

CD37突变型淋巴瘤B细胞表现为CD37细胞表面定位受损,这使抗CD37治疗或可以治疗B细胞淋巴瘤

摘要:

四次跨膜蛋白CD37主要表达于成熟B淋巴细胞表面,目前正被作为治疗B细胞淋巴瘤的新靶点进行研究。近期,研究人员发现在Cd37敲除的小鼠中,CD37缺失可诱导形成自发性B细胞淋巴瘤,而且还与弥漫性大B细胞淋巴瘤(DLBCL)患者的预后不良相关。

本研究共对137例原发性DLBCL患者进行CD37突变分析,包括44例起源于睾丸或中枢神经系统的原发性免疫优势位点相关性DLBCL(IP-DLBCL)。

CD37突变在IP-DLBCL病例中的外显率高达23%(10/44),但在非IP-DLBCL病例中未检测到CD37突变。检测到的CD37突变包括10个错义突变、1个缺失和3个剪接位点突变。CD37错义突变的建模和功能分析显示,功能性丧失表现位淋巴瘤B细胞细胞膜上的CD37蛋白表达受损。

本研究为深入研究IP-DLBCL的分子机制提供了新的思路,提示抗CD37治疗对无CD37突变的DLBCL患者更有益。

原始出处:

Suraya Elfrink, et al.High frequency of inactivating tetraspanin CD37 mutations in diffuse large B-cell lymphoma at immune-privileged sites.Blood 2019 :blood.2019001185; doi: https://doi.org/10.1182/blood.2019001185

本文系梅斯医学(MedSci)原创编译,转载需授权!

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    2020-05-04 marlenexl
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    2019-08-04 xiaoyeshuang

    #B细胞#

    0

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    2019-08-04 zhouqu_8

    #弥漫性#

    0

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    2019-08-04 docwu2019

    #CD37#

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1702581, encodeId=b17b1e025812d, content=<a href='/topic/show?id=ddc9e795159' target=_blank style='color:#2F92EE;'>#细胞淋巴瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77951, encryptionId=ddc9e795159, topicName=细胞淋巴瘤)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=201630414353, createdName=marlenexl, createdTime=Mon May 04 19:17:00 CST 2020, time=2020-05-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1273314, encodeId=f1dd12e331424, content=<a href='/topic/show?id=310d383ef5' target=_blank style='color:#2F92EE;'>#B细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3837, encryptionId=310d383ef5, topicName=B细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6eba113, createdName=xiaoyeshuang, createdTime=Sun Aug 04 14:17:00 CST 2019, time=2019-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1290162, encodeId=fc931290162a5, content=<a href='/topic/show?id=c5795004ece' target=_blank style='color:#2F92EE;'>#弥漫性大B细胞淋巴瘤#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50047, encryptionId=c5795004ece, topicName=弥漫性大B细胞淋巴瘤)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=346311, createdName=bnjfy, createdTime=Sun Aug 04 14:17:00 CST 2019, time=2019-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1438617, encodeId=0b86143861e01, content=<a href='/topic/show?id=9851500416c' target=_blank style='color:#2F92EE;'>#弥漫性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=98, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=50041, encryptionId=9851500416c, topicName=弥漫性)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Aug 04 14:17:00 CST 2019, time=2019-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1561975, encodeId=900815619e5fa, content=<a href='/topic/show?id=ecc2431e6a' target=_blank style='color:#2F92EE;'>#CD37#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4317, encryptionId=ecc2431e6a, topicName=CD37)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Sun Aug 04 14:17:00 CST 2019, time=2019-08-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=370675, encodeId=971f3e067537, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=122, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=82311653708, createdName=医者仁心5538, createdTime=Fri Aug 02 23:41:04 CST 2019, time=2019-08-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=370673, encodeId=d3c93e06739e, content=不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=122, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/2EVCwc9WmQS6ec99H2TX8ejmR40xYjwrIcrqjAnibV36aicL1sLxc21rhpZnqTOxk33HP44iayEwo6qYXqgZvdRtA/132, createdBy=d0d01573846, createdName=329523732, createdTime=Fri Aug 02 23:31:32 CST 2019, time=2019-08-02, status=1, ipAttribution=)]
    2019-08-02 医者仁心5538

    学习了

    0

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    2019-08-02 329523732

    不错

    0

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