Cancer Res:靶向休眠癌细胞,血小板药物竟能阻止乳腺癌转移!

2019-04-28 Paris Carrie 转化医学网

“人类能否治愈癌症”这一全球难题,如今有了新的答案,人类距离攻克癌症再次有了质的飞跃。来自Purdue大学的研究人员进行的一项研究发现:用于治疗ITP的药物可阻止乳腺癌转移,神奇的是,它竟是通过稳定癌细胞无症状休眠状态来完成这一伟大壮举。该研究在线发表于本月《Cancer Research》杂志的封面。

“人类能否治愈癌症”这一全球难题,如今有了新的答案,人类距离攻克癌症再次有了质的飞跃。来自Purdue大学的研究人员进行的一项研究发现:用于治疗ITP的药物可阻止乳腺癌转移,神奇的是,它竟是通过稳定癌细胞无症状休眠状态来完成这一伟大壮举。该研究在线发表于本月《Cancer Research》杂志的封面。



癌症治疗经典策略是针对快速分裂增殖的肿瘤细胞,但真正危害患者生命的元凶不是这些增殖细胞,恰好是那些处于休眠状态的癌细胞,这些休眠癌细胞散布在身体各个角落,随时准备复苏形成新的肿瘤,休眠癌细胞复苏表现为肿瘤转移。这些细胞类似一些癌症种子细胞,平时处于休眠状态,一旦时机成熟就活跃起来,形成肿瘤。现在癌症治疗领域的学者开始把重点转向这些恶劣的休眠种子癌细胞。

乳腺癌细胞在上皮和间充质状态之间可以转化的能力决定了其易于转移的倾向性。因此,与完全消除肿瘤细胞相反,驱动肿瘤细胞进入稳定的间充质状态,提供了通过促进无症状的休眠状态来阻止疾病进展的机会。

上皮-间充质之间的可塑性(EMP)是肿瘤细胞转移所必须的,而脾酪氨酸激酶(SYK)更是EMP的关键分子介质。SYK是乳腺上皮细胞中下调mRNA的EMT核心特征的一部分,研究表明,其可以作为肿瘤抑制因子而存在。


SYK在乳腺癌上皮-见充质转化过程中的作用

基于以上理论基础,研究人员选择药物fostamatinib作用于小鼠模型,因为它可以抑制特定的蛋白质,即脾脏酪氨酸激酶(SYK),这种蛋白质存在于这些播散的癌细胞中。在他们本次研究中,研究人员通过手术切除了小鼠的乳腺癌肿瘤,然后将肿瘤细胞用荧光素酶(生物发光萤火虫蛋白)标记,使研究人员能够追踪和量化复分解细胞的水平。他们随后发现,用fostamatinib治疗的癌细胞仍然处于休眠状态,并且不会在身体的其他部位引起转移。

fostamatinib之前便已备FDA批准用于对之前治疗缓解不佳的成年慢性免疫性血小板减少症(ITP)患者血小板减少的治疗。TAVALISSE是一种口服的脾脏酪氨酸激酶(SYK)抑制剂,通过阻止血小板的破坏来应对疾病的潜在自身免疫原因,为成年慢性ITP患者提供了一个重要的新的治疗方案。

药物的安全性已经毋庸置疑了,但后期研究人员还需要在人类癌症患者中进一步分析这类药物的有效性。

本文研究结果表明,目前这些药物仅能作为一种巩固疗法来有效减缓或抑制癌症患者初始治疗后的疾病复发;同时其还能为临床研究人员提供一种有用的工具来帮助其有效减缓癌症患者的复发与转移。

原始出处:

Aparna Shinde, Shana D. Hardy, Dongwook Kim, et.al. Spleen Tyrosine Kinase–Mediated Autophagy Is Required for Epithelial–Mesenchymal Plasticity and Metastasis in Breast Cancer. Cancer Research DOI: 10.1158/0008-5472.CAN-18-2636 Published April 2019

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=1668068, encodeId=88091668068a3, content=<a href='/topic/show?id=902125e1351' target=_blank style='color:#2F92EE;'>#休眠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, 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=Fri Feb 14 22:39:00 CST 2020, time=2020-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1776705, encodeId=c0dd1e767059f, content=<a href='/topic/show?id=fbf78905420' target=_blank style='color:#2F92EE;'>#血小板药物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89054, encryptionId=fbf78905420, topicName=血小板药物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8ff838995252, createdName=songbq, createdTime=Sun Mar 01 10:39:00 CST 2020, time=2020-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365512, encodeId=dd3236551283, content=认真的学习认真学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6DGOvNrRdcib3UmzMgpEQpl0ENSJScphsFtdgfibXX1g1IuEYGCjP23UqCd52TxTpSZibtPiclyusaHicnNXd78alaia19Qy1nAFo18/0, createdBy=50381491660, createdName=zwjnj2, createdTime=Tue Apr 30 13:01:50 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1252597, encodeId=cd9c125259ee4, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590331, encodeId=b027159033156, content=<a href='/topic/show?id=2c17e154824' target=_blank style='color:#2F92EE;'>#癌转移#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71548, encryptionId=2c17e154824, topicName=癌转移)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2dc017794099, createdName=linagood, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=)]
    2020-02-14 yese
  2. [GetPortalCommentsPageByObjectIdResponse(id=1668068, encodeId=88091668068a3, content=<a href='/topic/show?id=902125e1351' target=_blank style='color:#2F92EE;'>#休眠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, 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=Fri Feb 14 22:39:00 CST 2020, time=2020-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1776705, encodeId=c0dd1e767059f, content=<a href='/topic/show?id=fbf78905420' target=_blank style='color:#2F92EE;'>#血小板药物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89054, encryptionId=fbf78905420, topicName=血小板药物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8ff838995252, createdName=songbq, createdTime=Sun Mar 01 10:39:00 CST 2020, time=2020-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365512, encodeId=dd3236551283, content=认真的学习认真学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6DGOvNrRdcib3UmzMgpEQpl0ENSJScphsFtdgfibXX1g1IuEYGCjP23UqCd52TxTpSZibtPiclyusaHicnNXd78alaia19Qy1nAFo18/0, createdBy=50381491660, createdName=zwjnj2, createdTime=Tue Apr 30 13:01:50 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1252597, encodeId=cd9c125259ee4, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590331, encodeId=b027159033156, content=<a href='/topic/show?id=2c17e154824' target=_blank style='color:#2F92EE;'>#癌转移#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71548, encryptionId=2c17e154824, topicName=癌转移)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2dc017794099, createdName=linagood, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1668068, encodeId=88091668068a3, content=<a href='/topic/show?id=902125e1351' target=_blank style='color:#2F92EE;'>#休眠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, 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=Fri Feb 14 22:39:00 CST 2020, time=2020-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1776705, encodeId=c0dd1e767059f, content=<a href='/topic/show?id=fbf78905420' target=_blank style='color:#2F92EE;'>#血小板药物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89054, encryptionId=fbf78905420, topicName=血小板药物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8ff838995252, createdName=songbq, createdTime=Sun Mar 01 10:39:00 CST 2020, time=2020-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365512, encodeId=dd3236551283, content=认真的学习认真学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6DGOvNrRdcib3UmzMgpEQpl0ENSJScphsFtdgfibXX1g1IuEYGCjP23UqCd52TxTpSZibtPiclyusaHicnNXd78alaia19Qy1nAFo18/0, createdBy=50381491660, createdName=zwjnj2, createdTime=Tue Apr 30 13:01:50 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1252597, encodeId=cd9c125259ee4, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590331, encodeId=b027159033156, content=<a href='/topic/show?id=2c17e154824' target=_blank style='color:#2F92EE;'>#癌转移#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71548, encryptionId=2c17e154824, topicName=癌转移)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2dc017794099, createdName=linagood, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=)]
    2019-04-30 zwjnj2

    认真的学习认真学习

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1668068, encodeId=88091668068a3, content=<a href='/topic/show?id=902125e1351' target=_blank style='color:#2F92EE;'>#休眠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, 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=Fri Feb 14 22:39:00 CST 2020, time=2020-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1776705, encodeId=c0dd1e767059f, content=<a href='/topic/show?id=fbf78905420' target=_blank style='color:#2F92EE;'>#血小板药物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89054, encryptionId=fbf78905420, topicName=血小板药物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8ff838995252, createdName=songbq, createdTime=Sun Mar 01 10:39:00 CST 2020, time=2020-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365512, encodeId=dd3236551283, content=认真的学习认真学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6DGOvNrRdcib3UmzMgpEQpl0ENSJScphsFtdgfibXX1g1IuEYGCjP23UqCd52TxTpSZibtPiclyusaHicnNXd78alaia19Qy1nAFo18/0, createdBy=50381491660, createdName=zwjnj2, createdTime=Tue Apr 30 13:01:50 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1252597, encodeId=cd9c125259ee4, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590331, encodeId=b027159033156, content=<a href='/topic/show?id=2c17e154824' target=_blank style='color:#2F92EE;'>#癌转移#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71548, encryptionId=2c17e154824, topicName=癌转移)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2dc017794099, createdName=linagood, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=)]
    2019-04-30 yxch36
  5. [GetPortalCommentsPageByObjectIdResponse(id=1668068, encodeId=88091668068a3, content=<a href='/topic/show?id=902125e1351' target=_blank style='color:#2F92EE;'>#休眠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, 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=Fri Feb 14 22:39:00 CST 2020, time=2020-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1776705, encodeId=c0dd1e767059f, content=<a href='/topic/show?id=fbf78905420' target=_blank style='color:#2F92EE;'>#血小板药物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89054, encryptionId=fbf78905420, topicName=血小板药物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8ff838995252, createdName=songbq, createdTime=Sun Mar 01 10:39:00 CST 2020, time=2020-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=365512, encodeId=dd3236551283, content=认真的学习认真学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Q3auHgzwzM6DGOvNrRdcib3UmzMgpEQpl0ENSJScphsFtdgfibXX1g1IuEYGCjP23UqCd52TxTpSZibtPiclyusaHicnNXd78alaia19Qy1nAFo18/0, createdBy=50381491660, createdName=zwjnj2, createdTime=Tue Apr 30 13:01:50 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1252597, encodeId=cd9c125259ee4, content=<a href='/topic/show?id=3efee1519b2' target=_blank style='color:#2F92EE;'>#癌细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71519, encryptionId=3efee1519b2, topicName=癌细胞)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590331, encodeId=b027159033156, content=<a href='/topic/show?id=2c17e154824' target=_blank style='color:#2F92EE;'>#癌转移#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=21, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71548, encryptionId=2c17e154824, topicName=癌转移)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2dc017794099, createdName=linagood, createdTime=Tue Apr 30 07:39:00 CST 2019, time=2019-04-30, status=1, ipAttribution=)]