Brit J Cancer:RAS野生型转移性结肠癌患者接受抗EGFR治疗响应的蛋白预测生物标志物

2017-10-23 zhangfan MedSci原创

研究认为,活化的EGFR和PI3K是转移性结肠癌患者抗EGFR治疗响应的关键预测因素,对于RAS野生型转移性结肠癌患者的个体化治疗具有重要的临床指导作用

KRAS和RAS突变型转移性结直肠癌(mCRC)患者不能进行抗表皮生长因子受体(EGFR)的治疗,因为RAS突变激活的下游通路会诱导EGFR原发性耐药,然而对于RAS野生型患者,抗EGFR治疗的响应率也较低,这说明存在其他的耐药机理。近日研究人员对EGFR抵抗中的关键蛋白通路进行了研究。

研究人员考察了参与细胞信号蛋白激活表达通路,使用反相蛋白质芯片,对临床抗EGFR治疗的RAS野生型结直肠癌转移患者的蛋白信号通路进行了考察。

研究发现,活化的EGFR和HER3是患者预后良好的蛋白生物标志物。活化的EGFR信号通路,PI3K下调而非MAPK通路与抗EGFR治疗响应相关。左侧mCRC患者其ErbB2/3和 Wnt通路活化,相比于右侧患者,对抗EGFR治疗有更好的响应。

研究认为,活化的EGFR和PI3K是转移性结肠癌患者抗EGFR治疗响应的关键预测因素,对于RAS野生型转移性结肠癌患者的个体化治疗具有重要的临床指导作用。

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    2018-05-16 寒冰煞雪

    很好.学习

    0

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  5. [GetPortalCommentsPageByObjectIdResponse(id=315778, encodeId=a3cf315e7830, content=很好.学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqmJzSHmpibs29go2JHFjrib7BWPeia3OyJm41bCqTIAHsq4XRDkK1khzrF4ZUv71IXEL1rJRuKmBpOw/132, createdBy=16052318728, createdName=寒冰煞雪, createdTime=Wed May 16 23:43:24 CST 2018, time=2018-05-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1841121, encodeId=d482184112189, content=<a href='/topic/show?id=18bf61953d3' target=_blank style='color:#2F92EE;'>#标志物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61953, encryptionId=18bf61953d3, topicName=标志物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Sat Jun 02 16:09:00 CST 2018, time=2018-06-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2082897, encodeId=cde4208289ee8, content=<a href='/topic/show?id=2436961068e' target=_blank style='color:#2F92EE;'>#野生型#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=96106, encryptionId=2436961068e, topicName=野生型)], attachment=null, authenticateStatus=null, createdAvatar=https://thirdqq.qlogo.cn/qqapp/101173734/0EDD6BA8A8C6A0C23E8ABC8BA5331A25/100, createdBy=d37d2500154, createdName=ms5106640509429053, createdTime=Wed Oct 25 19:09:00 CST 2017, time=2017-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1386302, encodeId=4c8f1386302e6, content=<a href='/topic/show?id=f08293399f9' target=_blank style='color:#2F92EE;'>#转移性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93399, encryptionId=f08293399f9, topicName=转移性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1ac22500003, createdName=1249842em09(暂无昵称), createdTime=Wed Oct 25 05:09:00 CST 2017, time=2017-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534347, encodeId=23e8153434ee9, content=<a href='/topic/show?id=22b3e9887e' target=_blank style='color:#2F92EE;'>#GFR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7988, encryptionId=22b3e9887e, topicName=GFR)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0a812532020, createdName=liuyiping, createdTime=Wed Oct 25 05:09:00 CST 2017, time=2017-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560673, encodeId=337015606e36c, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Wed Oct 25 05:09:00 CST 2017, time=2017-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566682, encodeId=cf9515666825c, content=<a href='/topic/show?id=3c746936567' target=_blank style='color:#2F92EE;'>#生物标志#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69365, encryptionId=3c746936567, topicName=生物标志)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=63db15173977, createdName=zhu_jun9842, createdTime=Wed Oct 25 05:09:00 CST 2017, time=2017-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=255357, encodeId=49cc25535e23, content=学习了.谢谢分享., beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Mon Oct 23 17:42:00 CST 2017, time=2017-10-23, status=1, ipAttribution=)]
    2017-10-25 liuyiping
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    2017-10-23 1e0f8808m18(暂无匿称)

    学习了.谢谢分享.

    0

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