Eur J Cancer:HOXA9 meth-ctDNA可作为BRCA突变卵巢癌的生物标志物

2020-07-08 MedSci原创 MedSci原创

聚(ADP-核糖)聚合酶(PARP)抑制剂已成为BRCA突变卵巢癌(OC)的一种新的治疗选择;然而,反应是可变的,并且缺乏预后和预测性生物标志物。因此,我们研究了循环肿瘤DNA(meth-ctDNA)

聚(ADP-核糖)聚合酶(PARP)抑制剂已成为BRCA突变卵巢癌(OC)的一种新的治疗选择;然而,反应是可变的,并且缺乏预后和预测性生物标志物。因此,我们研究了循环肿瘤DNA(meth-ctDNA)中的homeobox A9(HOXA9)启动子甲基化是否可以作为铂类耐药BRCA突变OC患者的生物标志物,接受PARP抑制剂治疗。

 

患者(n = 32)作为测试veliparib在铂金耐药BRCA突变OC中的II期试验的一部分被纳入。在基线和每个治疗周期前,使用数字液滴聚合酶链反应测定HOXA9 meth-ctDNA。甲基化状态和与基线相比的甲基化变化与总生存期(OS)和无进展生存期(PFS)相关。

 

在使用PARP抑制剂治疗期间检测到HOXA9甲基ctDNA与更差的临床结果相关。这种关联在第一个治疗周期后明显,并在整个治疗过程中保持。三个治疗周期后,检测到HOXA9 meth-ctDNA的患者中位PFS为5.1个月,而没有检测到HOXA9 meth-ctDNA的患者中位PFS为8.3个月,中位OS为9.5个月,而没有检测到HOXA9 meth-ctDNA的患者中位OS为19.4个月(分别为P <0.0001和P = 0.002)。基线时检测到HOXA9 meth-ctDNA,但随后检测不到水平的患者具有最有利的临床结果,其次是全程检测不到水平的患者。这些关联在多变量分析中得以维持。

 

总之,该研究结果表明,纵向监测HOXA9 meth-ctDNA在临床上是可行的,并且与临床结果(PFS、OS)密切相关,这表明它可以作为一种有价值的预测性生物标志物,为PARP抑制剂治疗铂耐药BRCA突变OC的临床决策提供参考。

 

原始出处:

 

Maria RusanRikke F Andersen, et al., Circulating HOXA9-methylated Tumour DNA: A Novel Biomarker of Response to Poly (ADP-ribose) Polymerase Inhibition in BRCA-mutated Epithelial Ovarian Cancer. Eur J Cancer. 2020 Jan;125:121-129. doi: 10.1016/j.ejca.2019.11.012. 

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    2020-09-23 一闲
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    2020-07-10 mjldent
  5. [GetPortalCommentsPageByObjectIdResponse(id=1841540, encodeId=b1141841540a0, 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=27, 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=Wed Oct 14 10:36:51 CST 2020, time=2020-10-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1896693, encodeId=12ae1896693c2, content=<a href='/topic/show?id=4a391158248' target=_blank style='color:#2F92EE;'>#MET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11582, encryptionId=4a391158248, topicName=MET)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=18fc139, createdName=一闲, createdTime=Wed Sep 23 13:36:51 CST 2020, time=2020-09-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1418352, encodeId=006414183522d, content=<a href='/topic/show?id=39fd3e036a' target=_blank style='color:#2F92EE;'>#BRCA突变#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3703, encryptionId=39fd3e036a, topicName=BRCA突变)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=793f3344126, createdName=zhanglin3080, createdTime=Fri Jul 10 06:36:51 CST 2020, time=2020-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1530221, encodeId=97d1153022135, content=<a href='/topic/show?id=9bd19050a2' target=_blank style='color:#2F92EE;'>#HoxA9#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=9050, encryptionId=9bd19050a2, topicName=HoxA9)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=46b412069132, createdName=mjldent, createdTime=Fri Jul 10 06:36:51 CST 2020, time=2020-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1560932, encodeId=f5bc15609326a, 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=, createdBy=4c37265, createdName=hb2008ye, createdTime=Fri Jul 10 06:36:51 CST 2020, time=2020-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1566941, encodeId=825e1566941d0, 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=20, 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 Jul 10 06:36:51 CST 2020, time=2020-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1594064, encodeId=e69215940643b, content=<a href='/topic/show?id=63cc368459' target=_blank style='color:#2F92EE;'>#BRCA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3684, encryptionId=63cc368459, topicName=BRCA)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=智智灵药, createdTime=Fri Jul 10 06:36:51 CST 2020, time=2020-07-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=801826, encodeId=7a4c801826dd, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6EF3hKja8nER8RMzxQdria9eCYFhgLTLsDOeqnvIYdeLDz5eP6EnicLuE5gibiawgno4zUA0jAR7Nbtp2llQ9fs3Mk/0, createdBy=278f1986883, createdName=医鸣惊人, createdTime=Thu Jul 09 10:19:33 CST 2020, time=2020-07-09, status=1, ipAttribution=)]
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    2020-07-10 智智灵药
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    2020-07-09 医鸣惊人

    学习

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