Nature:异质性的Notch信号促进小细胞肺癌

2017-05-15 zhangfan MedSci原创

部分小细胞肺癌患者通过Notch信号通路激活生成独特的微环境, Notch信号可以作为小细胞肺癌患者预计化疗效果的生物标志物

跨膜受体蛋白Notch信号通路的活性在决定细胞命运(包括增殖、分化以及凋亡)过程中发挥着重要作用,其既可以抑制肿瘤也可以致癌。在肺发育过程中,Notch通路激活可抑制前体细胞向神经内分泌分化。在大部分小细胞肺癌中,Notch基因突变的功能丧失以及异位Notch激活表现出肿瘤抑制作用。

最新研究发现,有10-50%小鼠肺癌模型或人类肿瘤细胞发生Notch途径内源性激活导致发生神经内分泌向非神经内分泌转化,这种转化由转录抑制因子Nrsf介导,抑制神经内分泌基因表达。非神经内分泌Notch激活小细胞肺癌细胞生长缓慢,但对化疗不敏感并且向内分泌肿瘤细胞提供营养支持,表现出致癌作用。更为关键的是,临床前模型发现Notch可阻断化疗对肿瘤生长的抑制和复发延缓作用。

研究发现,部分小细胞肺癌患者通过Notch信号通路激活生成独特的微环境, Notch信号可以作为小细胞肺癌患者预计化疗效果的生物标志物。

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    2017-06-11 liye789132251
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    2017-05-17 karmond
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    2017-05-17 ymljack
  5. [GetPortalCommentsPageByObjectIdResponse(id=1882031, encodeId=1fac1882031e6, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Jun 11 03:09:00 CST 2017, time=2017-06-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2068307, encodeId=acba206830e8b, content=<a href='/topic/show?id=90b8129e7bd' target=_blank style='color:#2F92EE;'>#Notch信号#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12977, encryptionId=90b8129e7bd, topicName=Notch信号)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f49517, createdName=xinmeili, createdTime=Tue Jan 09 14:09:00 CST 2018, time=2018-01-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1373756, encodeId=0df413e375669, content=<a href='/topic/show?id=eb3b129e01d' target=_blank style='color:#2F92EE;'>#Notch#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12970, encryptionId=eb3b129e01d, topicName=Notch)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ece5364, createdName=karmond, createdTime=Wed May 17 03:09:00 CST 2017, time=2017-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1487443, encodeId=cbe6148e4430a, content=<a href='/topic/show?id=ba951352387' target=_blank style='color:#2F92EE;'>#OTC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13523, encryptionId=ba951352387, topicName=OTC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=b36f8313624, createdName=ymljack, createdTime=Wed May 17 03:09:00 CST 2017, time=2017-05-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=198592, encodeId=e16a198592dd, content=本质源创性研究很厉害了, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLEZQLsqPsCbsOnBS1AERT05H5eKZXUPMd8o1fzdcmdLAGj7j0Z5ia7qvh5a4ziakicAQkKsFGwmJLA0/0, createdBy=3caa2052896, createdName=137****4081, createdTime=Tue May 16 05:28:57 CST 2017, time=2017-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=198359, encodeId=c6c719835957, content=学习了!, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mStl88fu4NdqKgfW3nMpOkC3jXxiaW2po0PtglY5ZuVjERqKADW4HyMI8bcZXWlKgH7tEP9ULBoBzuQMibia4pr1s9rQPqLvqQJ/0, createdBy=e8c02060444, createdName=中医痴, createdTime=Mon May 15 12:27:03 CST 2017, time=2017-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=198357, encodeId=c54f19835e78, content=疾病的本质真相逐渐被人类发现,预防疾病就不远了, 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/Q3auHgzwzM4o2XVpJ6449yqDsjibydI5HnJ8MibGxNn4HZiaZib0bdfibbwoz3KQrIyN9AGxq36ZlZRNicYlPfOOWMtwgsajY6mGNFiaPclFdowjD0/0, createdBy=97bd1338592, createdName=清风拂面, createdTime=Mon May 15 12:25:53 CST 2017, time=2017-05-15, status=1, ipAttribution=)]
    2017-05-16 137****4081

    本质源创性研究很厉害了

    0

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    2017-05-15 中医痴

    学习了!

    0

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    2017-05-15 清风拂面

    疾病的本质真相逐渐被人类发现,预防疾病就不远了

    0

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