CCLM:使用支气管肺泡灌洗液中的游离DNA 来评估EGFR突变

2017-08-31 MedSci MedSci原创

近日,国际杂志《Clinical Chemistry and Laboratory Medicine》在线发表了一篇关于使用支气管肺泡灌洗液中的游离DNA 来评估EGFR突变的研究。

近日,国际杂志《Clinical Chemistry and Laboratory Medicine》在线发表了一篇关于使用支气管肺泡灌洗液中的游离DNA 来评估EGFR突变的研究。

自从发现表皮生长因子受体酪氨酸激酶抑制剂可提高EGFR阳性的肺癌患者的生存后,人们的注意力都集中在对表皮生长因子受体(EGFR)突变的测试。使用循环肿瘤细胞或游离DNAcfDNA)的液体活检能够避免进行侵入性测试,但这需要高度敏感的方法。迄今为止,使用支气管肺泡灌洗液(BAL)液的液体活检很少被使用到。

20例肺腺癌患者中,研究人员从20BAL液样本和19个无细胞支气管洗涤样品中分离出了cfDNA。使用肽核酸(PNA)介导的PCR方法检测cfDNAEGFR突变。在肿瘤活检和BAL衍生的cfDNA检测结果不一致的情况下,使用PANAMutyperR EGFR试剂盒和PNA夹心辅助荧光融合曲线分析。

研究包括17名晚期阶段疾病患者和3名非晚期阶段疾病患者。肿瘤活检检测到12例患者EGFR突变。一名患者出现p.L858R突变和从头p.T790M突变。PNA介导的PCR夹闭的结果与EGFR突变状态的肿瘤活检结果一致为75.0%(9/12)。在三例中进行荧光融合曲线分析的PANAMutyper,其中两例患者中检测到EGFR突变(11/1291.7%)。在从两个支气管洗涤样品中提取的cfDNA中检测到EGFR突变。

研究表明,来自BAL液体的cfDNA可用于EGFR突变的分子检测和p.T790M突变的鉴定,而且是一种容易操作的方法。

原始出处:

Park, Sojung Hur, Jae Young lee. et.al. Assessment of EGFR mutation status using cell-free DNA from bronchoalveolar lavage fluid.

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    2017-09-02 liuyiping
  5. [GetPortalCommentsPageByObjectIdResponse(id=2053508, encodeId=48eb205350856, content=<a href='/topic/show?id=726c5e1630e' target=_blank style='color:#2F92EE;'>#支气管肺泡灌洗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=38, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57163, encryptionId=726c5e1630e, topicName=支气管肺泡灌洗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c9df476, createdName=fyxzlh, createdTime=Mon Sep 04 15:18:00 CST 2017, time=2017-09-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2083614, encodeId=a2f9208361481, content=<a href='/topic/show?id=2c895e164a9' target=_blank style='color:#2F92EE;'>#支气管肺泡灌洗液#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57164, encryptionId=2c895e164a9, topicName=支气管肺泡灌洗液)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=395f25, createdName=bioon1, createdTime=Sun Apr 08 13:18:00 CST 2018, time=2018-04-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1892108, encodeId=22781892108fe, content=<a href='/topic/show?id=1b445e1232d' target=_blank style='color:#2F92EE;'>#支气管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=57123, encryptionId=1b445e1232d, topicName=支气管)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f503121, createdName=zjubiostat, createdTime=Sat Jan 20 06:18:00 CST 2018, time=2018-01-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1534330, encodeId=8ede1534330cf, content=<a href='/topic/show?id=22b3e9887e' target=_blank style='color:#2F92EE;'>#GFR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, 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=Sat Sep 02 14:18:00 CST 2017, time=2017-09-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1573566, encodeId=ffc115e3566f6, content=<a href='/topic/show?id=ad6066363fb' target=_blank style='color:#2F92EE;'>#游离DNA#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=66363, encryptionId=ad6066363fb, topicName=游离DNA)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d04c15907611, createdName=LSJ116, createdTime=Sat Sep 02 14:18:00 CST 2017, time=2017-09-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=239142, encodeId=60e9239142de, content=学习了很有用, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Fri Sep 01 00:10:53 CST 2017, time=2017-09-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=239130, encodeId=95ef23913039, content=不错的文章值得学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=04f22055142, createdName=131****2916, createdTime=Thu Aug 31 23:31:48 CST 2017, time=2017-08-31, status=1, ipAttribution=)]
    2017-09-02 LSJ116
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    2017-09-01 飛歌

    学习了很有用

    0

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    2017-08-31 131****2916

    不错的文章值得学习

    0

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