Blood:休眠骨髓瘤细胞独特的转录特征

2019-04-27 MedSci MedSci原创

在靶向治疗时代,多发性骨髓瘤患者的缓解深度、无进展生存期和总体生存期均获得显著提高。但虽然临床预后有所改善,部分患者会复发,需要进一步治疗。残留在骨骼特殊壁龛内的耐药性休眠骨髓瘤细胞被认为是骨髓瘤复发的基础,仍有很多未知,且难以进行研究。

中心点:

休眠的多发性骨髓瘤细胞具有独特的转录组特征。

这种独特的转录特征有助于调控休眠、预测存活率和鉴定新的治疗靶点。

摘要:

在靶向治疗时代,多发性骨髓瘤患者的缓解深度、无进展生存期和总体生存期均获得显著提高。但虽然临床预后有所改善,部分患者会复发,需要进一步治疗。残留在骨骼特殊壁龛内的耐药性休眠骨髓瘤细胞被认为是骨髓瘤复发的基础,仍有很多未知,且难以进行研究。

Weng Hua Khoo等人开发了一种方法,可对肿瘤小鼠骨骼来源的单个休眠骨髓瘤细胞的转录本进行测序。测序结果分析显示休眠的骨髓瘤细胞表达一种免疫基因富集的独特的转录本,而且富集的基因与髓系细胞分化相关。通过与成骨细胞共培养可激活这些基因。

采用小分子抑制剂靶向休眠细胞高表达的一个基因AXL,可将细胞从休眠状态唤醒,促进其增殖。在人类队列中,AXL及其共调节基因的表达分析显示健康对照和意义不明确的单克隆丙球(MGUS)处理的患者的休眠特征基因的表达水平高于多发性骨髓瘤患者的。而且,在多发性骨髓瘤患者中,髓系转录组特征的表达转化可增加两倍的总体存活率,提示休眠特征可能是疾病进展的一个标志。

总而言之,骨髓瘤细胞与成骨细胞壁龛的结合可诱导一些列髓系基因的表达,预示病程进展,并可作为根除休眠骨髓瘤细胞的潜在药物靶点。

原始出处:

Weng Hua Khoo, et al. A Niche-Dependent Myeloid Transcriptome Signature Defines Dormant Myeloma Cells. Blood 2019 :blood.2018880930; doi: https://doi.org/10.1182/blood.2018880930

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    2019-12-01 yese
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    2019-06-02 orangesking

    0

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    2019-12-03 mjldent
  5. [GetPortalCommentsPageByObjectIdResponse(id=1813646, encodeId=aa8c18136468f, content=<a href='/topic/show?id=c59d9336e5d' target=_blank style='color:#2F92EE;'>#转录特征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93367, encryptionId=c59d9336e5d, topicName=转录特征)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=32a12500167, createdName=12498ca5m83暂无昵称, createdTime=Fri Nov 08 18:12:00 CST 2019, time=2019-11-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1668067, encodeId=7177166806e52, content=<a href='/topic/show?id=902125e1351' target=_blank style='color:#2F92EE;'>#休眠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25713, encryptionId=902125e1351, topicName=休眠)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=34e226239625, createdName=yese, createdTime=Sun Dec 01 04:12:00 CST 2019, time=2019-12-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=367193, encodeId=dd2836e1930f, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0aa31415219, createdName=orangesking, createdTime=Sun Jun 02 23:35:58 CST 2019, time=2019-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1747354, encodeId=7a561e473540b, content=<a href='/topic/show?id=832e93345c3' target=_blank style='color:#2F92EE;'>#转录#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93345, encryptionId=832e93345c3, topicName=转录)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=58df35929710, createdName=mjldent, createdTime=Tue Dec 03 19:12:00 CST 2019, time=2019-12-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365488, encodeId=be38365488ad, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eb632234894, createdName=1212faddm29暂无昵称, createdTime=Mon Apr 29 23:06:53 CST 2019, time=2019-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365404, encodeId=48c53654041e, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=650f104372, createdName=gcwu82, createdTime=Sun Apr 28 08:28:24 CST 2019, time=2019-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365403, encodeId=2c303654032b, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Sun Apr 28 08:22:27 CST 2019, time=2019-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365391, encodeId=255a365391e8, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6d551998554, createdName=1e1c07bdm01(暂无匿称), createdTime=Sun Apr 28 06:03:20 CST 2019, time=2019-04-28, status=1, ipAttribution=)]
    2019-04-29 1212faddm29暂无昵称

    学习了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1813646, encodeId=aa8c18136468f, content=<a href='/topic/show?id=c59d9336e5d' target=_blank style='color:#2F92EE;'>#转录特征#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93367, encryptionId=c59d9336e5d, topicName=转录特征)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=32a12500167, createdName=12498ca5m83暂无昵称, createdTime=Fri Nov 08 18:12:00 CST 2019, time=2019-11-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1668067, encodeId=7177166806e52, content=<a href='/topic/show?id=902125e1351' target=_blank style='color:#2F92EE;'>#休眠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25713, encryptionId=902125e1351, topicName=休眠)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=34e226239625, createdName=yese, createdTime=Sun Dec 01 04:12:00 CST 2019, time=2019-12-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=367193, encodeId=dd2836e1930f, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0aa31415219, createdName=orangesking, createdTime=Sun Jun 02 23:35:58 CST 2019, time=2019-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1747354, encodeId=7a561e473540b, content=<a href='/topic/show?id=832e93345c3' target=_blank style='color:#2F92EE;'>#转录#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93345, encryptionId=832e93345c3, topicName=转录)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=58df35929710, createdName=mjldent, createdTime=Tue Dec 03 19:12:00 CST 2019, time=2019-12-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365488, encodeId=be38365488ad, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=72, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=eb632234894, createdName=1212faddm29暂无昵称, createdTime=Mon Apr 29 23:06:53 CST 2019, time=2019-04-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365404, encodeId=48c53654041e, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=650f104372, createdName=gcwu82, createdTime=Sun Apr 28 08:28:24 CST 2019, time=2019-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365403, encodeId=2c303654032b, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/vi_32/iaAVWEsIJUkA1ITy3uL0lhHUhyaJibWgFtH4KbJuaLbY2WUK33jgCFyoZ8Eqx7eE7hCuZhytc1C5GRrfjVXN8lYg/0, createdBy=fcb82149579, createdName=183****7028, createdTime=Sun Apr 28 08:22:27 CST 2019, time=2019-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365391, encodeId=255a365391e8, content=好, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6d551998554, createdName=1e1c07bdm01(暂无匿称), createdTime=Sun Apr 28 06:03:20 CST 2019, time=2019-04-28, status=1, ipAttribution=)]
    2019-04-28 gcwu82

    学习了

    0

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    2019-04-28 183****7028

    学习

    0

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在一项新的研究中,来自美国冷泉港实验室(CSHL)的研究人员确定了缓解中的癌症反弹回来的途径之一。这些知识促进了一种旨在阻止癌症复发和转移的新型治疗理念。即使在成功的癌症治疗之后,之前从原始肿瘤中脱离下来的休眠的非分裂癌细胞可能仍然存在于身体的其他地方。如果被唤醒,这些癌细胞能够增殖并生长成转移性肿瘤。这些研究肺转移的研究人员如今鉴定出伴随着炎症的能够唤醒休眠的癌细胞的信号。相关研究结果发表在20