ASCO 2014:高TIMP-1水平可作为EGFR抑制疗法生物标志物

2014-05-21 佚名 dxy

目前,RAS状态是表皮生长因子受体(EGFR)抑制剂用于转移性结直肠癌(mCRC)治疗患者选择的唯一生物标志物。然而,并不是所有的KRAS野生型肿瘤均对EGFR抑制产生响应,一些KRAS突变型肿瘤患者也可从治疗中获益。若想提高患者EGFR受体抑制剂治疗选择性,还需开发新的生物标志物。 金属蛋白酶等离子体组织抑制剂-1(TIMP-1)诱发细胞内信号以激活Akt-生存通路。丹麦哥本哈根大学研究人员提出

目前,RAS状态是表皮生长因子受体(EGFR)抑制剂用于转移性结直肠癌(mCRC)治疗患者选择的唯一生物标志物。然而,并不是所有的KRAS野生型肿瘤均对EGFR抑制产生响应,一些KRAS突变型肿瘤患者也可从治疗中获益。若想提高患者EGFR受体抑制剂治疗选择性,还需开发新的生物标志物。

金属蛋白酶等离子体组织抑制剂-1(TIMP-1)诱发细胞内信号以激活Akt-生存通路。丹麦哥本哈根大学研究人员提出假设:高TIMP-1水平与EGFR信号相互作用,影响EGFR抑制剂抗肿瘤效果。并通过NORDIC VII临床研究对上述假设进行检测。

研究人员将转移性结直肠癌患者随机分配至两组,FLOX化疗联合西妥昔单抗组和FLOX化疗组(Tveit et al., JCO, 2012)。研究人员使用MAC15抗体动态ELISA法对426份治疗前患者血浆样本TIMP-1进行分析。

所有患者的单变量Cox分析显示治疗前高血浆TIMP-1水平与更短的无进展生存期(PFS)及总生存期(OS)显著相关。多变量分析结果显示,高血浆TIMP-1水平是独立的OS生物标志物。与未经西妥昔单抗治疗患者相比,西妥昔单抗治疗可大大延长高TIMP-1水平KRAS基因突变肿瘤患者OR(风险比[HR] 0.48)。

高血浆TIMP-1水平的KRAS基因突变肿瘤患者更易EGFR抑制治疗获益。高TIMP-1水平可作为转移性结直肠癌患者EGFR抑制治疗新生物标志物。

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=1840801, encodeId=b8bc1840801c4, 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=32, 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=Tue Mar 24 00:18:00 CST 2015, time=2015-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938286, encodeId=b6111938286ba, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Fri Jan 30 10:18:00 CST 2015, time=2015-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534231, encodeId=849e15342318e, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560515, encodeId=bba81560515f4, 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=22, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566524, encodeId=50441566524a5, 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=25, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1840801, encodeId=b8bc1840801c4, 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=32, 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=Tue Mar 24 00:18:00 CST 2015, time=2015-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938286, encodeId=b6111938286ba, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Fri Jan 30 10:18:00 CST 2015, time=2015-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534231, encodeId=849e15342318e, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560515, encodeId=bba81560515f4, 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=22, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566524, encodeId=50441566524a5, 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=25, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=)]
    2015-01-30 quxin068
  3. [GetPortalCommentsPageByObjectIdResponse(id=1840801, encodeId=b8bc1840801c4, 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=32, 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=Tue Mar 24 00:18:00 CST 2015, time=2015-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938286, encodeId=b6111938286ba, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Fri Jan 30 10:18:00 CST 2015, time=2015-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534231, encodeId=849e15342318e, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560515, encodeId=bba81560515f4, 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=22, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566524, encodeId=50441566524a5, 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=25, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=)]
    2014-05-23 liuyiping
  4. [GetPortalCommentsPageByObjectIdResponse(id=1840801, encodeId=b8bc1840801c4, 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=32, 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=Tue Mar 24 00:18:00 CST 2015, time=2015-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938286, encodeId=b6111938286ba, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Fri Jan 30 10:18:00 CST 2015, time=2015-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534231, encodeId=849e15342318e, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560515, encodeId=bba81560515f4, 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=22, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566524, encodeId=50441566524a5, 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=25, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1840801, encodeId=b8bc1840801c4, 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=32, 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=Tue Mar 24 00:18:00 CST 2015, time=2015-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1938286, encodeId=b6111938286ba, content=<a href='/topic/show?id=1c292818fd' target=_blank style='color:#2F92EE;'>#ASC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2818, encryptionId=1c292818fd, topicName=ASC)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=74808, createdName=quxin068, createdTime=Fri Jan 30 10:18:00 CST 2015, time=2015-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534231, encodeId=849e15342318e, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560515, encodeId=bba81560515f4, 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=22, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566524, encodeId=50441566524a5, 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=25, 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=Fri May 23 09:18:00 CST 2014, time=2014-05-23, status=1, ipAttribution=)]

相关资讯

JAMA Surg:老年结直肠癌手术治疗整体下降,死亡率也在减少

老年患者结直肠癌切除术死亡率和发病率的数据是相对缺乏的。刚刚在JAMA Surgery发表一项基于全国的大型队列研究中,Jafari等发现老年患者结直肠癌切除术整体数量下降,住院期间死亡率有所改善,尽管风险校正死亡率和发病率仍显著高于年轻患者。研究对2001年1月至2010年12月健康保健费用和应用计划全国住院患者样本中1043108例结直肠癌患者的手术预后进行了数据分析。对45-64岁、65-6

Lancet Oncol:帕尼单抗对KRAS野生型转移性结直肠癌非劣于西妥昔单抗(ASPECCT研究)

抗-EGFR单克隆抗体帕尼单抗和西妥昔单抗对化疗难治性KRAS基因外显子2野生型转移性结直肠癌患者有效。一项ASPECCT研究评估了帕尼单抗与西妥昔单抗在这些患者中的疗效和毒副反应。初步结果曾经在2013年欧洲癌症会议上公布,现结果在线发表于《柳叶刀肿瘤学》杂志。 在这项随机、开放标签的3期研究中,参加试验的患者(来自北美,南美,欧洲,亚洲,非洲和澳大利亚治疗中心)年龄在18岁或以上,均为化

CPP:MET过表达预测KRAS野生型mCRC患者抗EGFR疗法效果

日本学者研究发现,MET过表达、BRAF 和PIK3CA突变是野生型KRAS转移性结直肠癌(mCRC)患者对抗EGFR MoAbs疗法反应性的一种有用的、新疗效预测指标;同时,他们的研究也提示,应用多种生物标记物对可能获益于抗EGFR疗法的患者进行选择比单独应用一种指标效果更好。论文2014年4月1日在线发表于《癌症化疗与药理学》(Cancer Chemotherapy and Pharmacol

JCO:ASCO 50年结直肠癌进展回顾

1964年ASCO成立之初,医学界对结直肠癌的病因学还知之甚少,治疗方法大致仅限于对原发肿瘤灶的手术切除,以及用于转移性结直肠癌有一定效果的氟尿嘧啶。从那时起,结直肠癌的早期发现、预防和治疗取得了实质性进展,美国和大多数医疗资源丰富的国家的结直肠癌发病率和死亡率都随之出现了明显下降。 观察性研究表明,结肠癌与摄食红肉、肥胖、缺乏体力锻炼等有关。常规服用阿司匹林似乎可以降低发病率。确诊为结肠癌的

Lancet Oncol:FOLFOX方案加西妥昔单抗用于结直肠癌维持治疗方案(COIN-B研究)

晚期结直肠癌可使用细胞毒药物和靶向药物的联合治疗,一直以来临床上的治疗策略都是主张连续化疗直至患者不能耐受。但随着新药的应用,晚期结直肠癌患者的生存期延长,化疗毒性作用的累积,使患者很难长期承受相同强度的治疗。如何才能将细胞毒药物治疗时间降至最低以及分子靶向疗法是否能进一步改善等尚不清楚。为此,一项研究旨在确定西妥昔单抗怎样才能安全有效的加入到间歇化疗中。研究结果本月发表在线于《柳叶刀 肿瘤学》杂

Lancet Oncol:EGFR抗体西妥昔单抗可以作为结直肠癌维持治疗的优化方案(COIN-B研究)

过去的15年里,晚期结直肠癌的治疗有了很大的进展。直到20世纪90年代末,结直肠癌仍被认为是对化疗抵抗的疾病,只能应用氟尿嘧啶进行姑息治疗。然而,现在有很多可行的治疗方案。化疗和生物学药物(包括EGFR或VEGF抗体)的联合一线治疗,以及疾病进展时不同的有效药物序贯应用,能够明显改善预后。参与临床试验的患者的生存期的中位数经常超过2年。患者一开始肝转移灶不能手术切除,在治疗后可变为可以手术切除