JAMA Oncol:四个基因决定胰腺癌患者的生存期

2017-11-04 海北 MedSci原创

切除胰腺腺癌的患者出现疾病复发的风险很高,但很少有生物标志物可用于预测患者结果。来自罗切斯特大学医学中心的研究人员就对胰腺癌中4种主要驱动基因的改变以及癌症切除后的患者预后进行了评估。

胰腺腺癌切除后患者复发风险较高,且很少有生物标志物可用于预测患者预后。来自罗切斯特大学医学中心的研究人员就对胰腺癌4种主要驱动基因的改变以及癌症切除后的患者预后进行了评估。

本研究通过免疫组织化学和福尔马林固定的石蜡包埋肿瘤的新一代测序,分析了356例进行切除手术的胰腺癌患者中的KRASCDKN2ASMAD4TP53基因的蛋白质表达,以及DNA序列改变。本次研究招募的患者来自Dana-Farber/Brigham妇女癌症中心(2002年10月26日至2012年5月21日),罗彻斯特大学医学中心(2006年3月1日至2013年11月1日)或斯坦福癌症研究所(1995年9月26日至2013年5月22日)。

研究人员使用Cox比例风险回归评估驱动基因改变与无病生存(DFS)和总生存(OS)之间的关系,评估了危险比(HR)和95%可信区间,并对年龄,性别,肿瘤特征,和围手术期治疗进行了调整。

KRAS野生型肿瘤患者(DFS16.2 [8.9-30.5 ]个月; OS38.6 [16.6-63.1]个月)相比,KRAS突变肿瘤患者的DFS(中位数[IQR]12.3 [6.7-27.2]个月)和OS20.3 [11.3-38.3]个月)更差。5OS13.0%,而野生型KRAS患者的5OS30.2%。KRAS G12D突变肿瘤患者的中位(IQROS15.39.8-32.7)个月,结果特别差。

CDKN2A完整的患者(DFS14.8 [8.2-30.5]个月;OS为(24.6 [14.1-44.6]个月)相比,肿瘤缺乏CDKN2A表达的患者的DFS更差(中位数为11.5 [IQR6.2-24.5]个月);OS缩短19.7 [10.9-37.1]个月)。

SMAD4的分子状态与DFS或OS无关,而TP53状态仅与更短的DFS相关(HR,1.33; 95%CI,1.02-1.75; P = .04)。

如果患者驱动基因的改变较多,则患者的DFS和OS更差。与具有0至2个改变基因的患者相比,具有4个改变基因的患者的DFS(HR,1.79 [95%CI,1.24-2.59; P = .002])和OS(HR,1.38 [95%CI,0.98- 1.94; P = .06])更差。 0-2个基因改变患者5年OS为18.4%,3个基因改变者为14.1%,4个基因改变者为8.2%。

因此,胰腺癌切除后患者预后情况与4个主要驱动基因的改变相关。

原始出处:

Zhi Rong Qian et al. Association of Alterations in Main Driver Genes With Outcomes of Patients With Resected Pancreatic Ductal Adenocarcinoma. JAMA Oncology, 2017; DOI: 10.1001/jamaoncol.2017.3420

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    2018-04-25 minlingfeng
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    2017-11-06 随梦飞扬

    胰腺癌患者的预后和切除的胰腺癌中4个主要驱动基因的改变相关.

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1865185, encodeId=64cc186518513, content=<a href='/topic/show?id=16ce133504e' target=_blank style='color:#2F92EE;'>#Oncol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13350, encryptionId=16ce133504e, topicName=Oncol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b63894, createdName=minlingfeng, createdTime=Wed Apr 25 07:03:00 CST 2018, time=2018-04-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1378146, encodeId=faab13e8146a9, content=<a href='/topic/show?id=c29b69004f9' target=_blank style='color:#2F92EE;'>#生存期#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=69004, encryptionId=c29b69004f9, topicName=生存期)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8e886, createdName=仁者大医, createdTime=Mon Nov 06 07:03:00 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258999, encodeId=ad0a258999af, content=胰腺癌患者的预后和切除的胰腺癌中4个主要驱动基因的改变相关., beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/08/02/7354b3539aae6a0ccb1e0fff04c12084.jpg, createdBy=205b1984786, createdName=随梦飞扬, createdTime=Mon Nov 06 00:08:54 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258998, encodeId=784025899880, content=?0-2个基因改变患者5年OS为18.4%.3个基因改变者为14.1%.4个基因改变者为8.2%, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/08/02/7354b3539aae6a0ccb1e0fff04c12084.jpg, createdBy=205b1984786, createdName=随梦飞扬, createdTime=Mon Nov 06 00:08:01 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258996, encodeId=d45325899642, content=SMAD4的分子状态与DFS或OS无关.而TP53状态仅与更短的DFS相关, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/08/02/7354b3539aae6a0ccb1e0fff04c12084.jpg, createdBy=205b1984786, createdName=随梦飞扬, createdTime=Mon Nov 06 00:07:40 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258992, encodeId=47d3258992a2, content=KRAS.CDKN2A.SMAD4和TP53基因的蛋白质表达.以及DNA序列改变., beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/08/02/7354b3539aae6a0ccb1e0fff04c12084.jpg, createdBy=205b1984786, createdName=随梦飞扬, createdTime=Mon Nov 06 00:05:57 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258682, encodeId=553a258682a8, content=学习了受益匪浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDicHg2ldsSNmib46PmdzpO7CQEmPjuULp1v45zPWwMYhrnXgvl3OtmUCZSQfgITWn96X9moL94nUGA/0, createdBy=28072041016, createdName=131****1460, createdTime=Sat Nov 04 19:24:46 CST 2017, time=2017-11-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258649, encodeId=7c6a2586497c, content=基因研究并改变是未来医学发展趋势., beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Sat Nov 04 16:25:21 CST 2017, time=2017-11-04, status=1, ipAttribution=)]
    2017-11-06 随梦飞扬

    ?0-2个基因改变患者5年OS为18.4%.3个基因改变者为14.1%.4个基因改变者为8.2%

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    2017-11-06 随梦飞扬

    SMAD4的分子状态与DFS或OS无关.而TP53状态仅与更短的DFS相关

    0

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    2017-11-06 随梦飞扬

    KRAS.CDKN2A.SMAD4和TP53基因的蛋白质表达.以及DNA序列改变.

    0

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    2017-11-04 131****1460

    学习了受益匪浅

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    2017-11-04 1e0f8808m18(暂无匿称)

    基因研究并改变是未来医学发展趋势.

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