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NEJM和Nature同时报道ctDNA肺癌诊断新进展

2017-04-28 文姜 生物探索

4月26日新英格兰医学杂志和Nature分别报道了英国TRACERx肺癌研究计划的第一个成果:肺肿瘤中不稳定的染色体会增加手术后癌症复发的风险,ctDNA的状况可用于检测复发的可能。

英国科学家发现肺肿瘤中不稳定的染色体会增加手术后癌症复发的风险,并且在标准测试之前就已经使用这种新的知识来检测复发。这是英国TRACERx肺癌研究计划的第一个成果,4月26日分别发表在新英格兰医学杂志和Nature。

TRACERx研究计划

TRACERx是第一个在实时性的和巨大的细节上研究癌症进化的研究。研究人员从诊断到疾病复发或治愈后手术随访病人,跟踪和分析他们的癌症是如何发展的。

该研究的领导者伦敦Francis Crick研究所的Charles Swanton教授说:“TRACERx研究计划是英国癌症研究协会在肺癌的最大单笔投资,将为我们揭示肿瘤是怎样进化和逃避治疗的。我们相信在TRACERx研究中产生的宝贵数据将被世界各地的研究小组所利用,帮助我们回答更多的关于肺癌生物学的问题,之前我们研究肿瘤进化只涉及了浅表。”

NEJM上的报道



在发表在《新英格兰医学杂志》上的研究中,科学家分析了100例非小细胞肺癌(NSCLC)患者的肿瘤。他们发现不稳定的染色体是肿瘤内遗传多样性的驱动力。

他们还发现,肿瘤中高比例的不稳定染色体的患者在两年内患癌症的几率会增加四倍,或者死于癌症。这是因为基因不同的肿瘤更容易进化、扩散并成为抗药性,使病人的癌症更难治疗。

UCL的首席作者MariamJamal-Hanjani博士说:“确定肿瘤的多样化和患者的生存率之间的关系是TRACERx的主要目标,在此项研究中这么快就找到证据是振奋人心的。我们还确定了是什么原因导致肺癌的进展,这让我们了解造成疾病进化的生物学过程。”

Nature上的报道



有了这一发现,研究人员进行了第二项研究,相关内容同一天发表在Nature上,调查了这种遗传多样性是否能从临床上跟踪。

通过对100名患者中抽取96名患者的血液样本进行检测,他们发现在非小细胞肺癌中存在的基因缺陷,可以用从肿瘤中游离出来的血液DNA片段(ctDNA)来监测。然后,他们分析了24例非小细胞肺癌患者手术后的血液,并在临床影像证实疾病复发前的一年,准确地鉴定出超过90%的人注定要复发。

这一发现为试图防止肺癌复发的新的药物试验开辟了许多机会。目前监测化疗后的状况还是不可能的,因为没有临床症状。考虑到这一点,研究小组还比较了术后化疗前后ctDNA水平的变化。当血液中的肿瘤DNA水平在化疗后没有降低时,疾病会复发,提示了至少部分肿瘤对治疗有抵抗力。研究结果提供了一种新的手段来监测手术后的治疗,并对现有方法有抗性的肿瘤指出一个新的治疗目标。

UCL的癌症研究所的首席作者ChristopherAbbosh博士说:“在未来我们可以对患者提供个性化的处理,靶向手术后复发的肿瘤部位。使用ctDNA,即使病人没有疾病的临床症状,我们也可以识别,也能监测治疗的工作进行得如何。这代表了手术后肺癌复发的新希望,因为在半数以上的患者中,肺癌复发率高达一半。”

原始出处:

[1] Mariam Jamal-Hanjani,et al.Tracking the Evolution of Non–Small-Cell Lung Cancer.NEJM.

[2] Christopher Abbosh,et al.Phylogenetic ctDNA analysis depicts early stage lung cancer evolution.Nature.

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1881976, encodeId=da3a18819e64c, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Dec 06 21:07:00 CST 2017, time=2017-12-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=197748, encodeId=b7bd19e748e2, content=新的知识点,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Sun May 14 02:04:08 CST 2017, time=2017-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=196050, encodeId=f5ac19605067, content=很好的报道,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Wed May 10 06:55:01 CST 2017, time=2017-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191469, encodeId=406e19146976, content=继续学习。 , beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzfPkmqRTH5rHib5mcib8Wb3QdXjhfOK1UubQL2lictjJFdFJ6Lc3cnnCOSWqxXZ4Kk6y5GdzDoy764R/0, createdBy=156e1644785, createdName=doctorJiangchao, createdTime=Fri Apr 28 12:01:24 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191433, encodeId=9b7e191433f7, content=感谢小编为我们精心准备了如此精辟的精神大餐,小编辛苦了,点个赞吧!, 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/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Fri Apr 28 10:24:52 CST 2017, time=2017-04-28, status=1, ipAttribution=)]
    2017-12-06 liye789132251
  2. [GetPortalCommentsPageByObjectIdResponse(id=1881976, encodeId=da3a18819e64c, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Dec 06 21:07:00 CST 2017, time=2017-12-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=197748, encodeId=b7bd19e748e2, content=新的知识点,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Sun May 14 02:04:08 CST 2017, time=2017-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=196050, encodeId=f5ac19605067, content=很好的报道,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Wed May 10 06:55:01 CST 2017, time=2017-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191469, encodeId=406e19146976, content=继续学习。 , beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzfPkmqRTH5rHib5mcib8Wb3QdXjhfOK1UubQL2lictjJFdFJ6Lc3cnnCOSWqxXZ4Kk6y5GdzDoy764R/0, createdBy=156e1644785, createdName=doctorJiangchao, createdTime=Fri Apr 28 12:01:24 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191433, encodeId=9b7e191433f7, content=感谢小编为我们精心准备了如此精辟的精神大餐,小编辛苦了,点个赞吧!, 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/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Fri Apr 28 10:24:52 CST 2017, time=2017-04-28, status=1, ipAttribution=)]
    2017-05-14 执迷不悔

    新的知识点,学习了

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1881976, encodeId=da3a18819e64c, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Dec 06 21:07:00 CST 2017, time=2017-12-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=197748, encodeId=b7bd19e748e2, content=新的知识点,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Sun May 14 02:04:08 CST 2017, time=2017-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=196050, encodeId=f5ac19605067, content=很好的报道,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Wed May 10 06:55:01 CST 2017, time=2017-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191469, encodeId=406e19146976, content=继续学习。 , beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzfPkmqRTH5rHib5mcib8Wb3QdXjhfOK1UubQL2lictjJFdFJ6Lc3cnnCOSWqxXZ4Kk6y5GdzDoy764R/0, createdBy=156e1644785, createdName=doctorJiangchao, createdTime=Fri Apr 28 12:01:24 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191433, encodeId=9b7e191433f7, content=感谢小编为我们精心准备了如此精辟的精神大餐,小编辛苦了,点个赞吧!, 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/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Fri Apr 28 10:24:52 CST 2017, time=2017-04-28, status=1, ipAttribution=)]
    2017-05-10 执迷不悔

    很好的报道,学习了

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1881976, encodeId=da3a18819e64c, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Dec 06 21:07:00 CST 2017, time=2017-12-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=197748, encodeId=b7bd19e748e2, content=新的知识点,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Sun May 14 02:04:08 CST 2017, time=2017-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=196050, encodeId=f5ac19605067, content=很好的报道,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Wed May 10 06:55:01 CST 2017, time=2017-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191469, encodeId=406e19146976, content=继续学习。 , beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzfPkmqRTH5rHib5mcib8Wb3QdXjhfOK1UubQL2lictjJFdFJ6Lc3cnnCOSWqxXZ4Kk6y5GdzDoy764R/0, createdBy=156e1644785, createdName=doctorJiangchao, createdTime=Fri Apr 28 12:01:24 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191433, encodeId=9b7e191433f7, content=感谢小编为我们精心准备了如此精辟的精神大餐,小编辛苦了,点个赞吧!, 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/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Fri Apr 28 10:24:52 CST 2017, time=2017-04-28, status=1, ipAttribution=)]
    2017-04-28 doctorJiangchao

    继续学习。

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1881976, encodeId=da3a18819e64c, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Dec 06 21:07:00 CST 2017, time=2017-12-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=197748, encodeId=b7bd19e748e2, content=新的知识点,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Sun May 14 02:04:08 CST 2017, time=2017-05-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=196050, encodeId=f5ac19605067, content=很好的报道,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=84, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/y6Sk2KiaDibWSs0icexcRzKWXKao9dILdyaB6olvWApA1uiaapa4T9XMiaU7hTZA04uj2iavabfdCT5iaO6AYue5qSJ7MzXaAVSqh6j/0, createdBy=08e01983553, createdName=执迷不悔, createdTime=Wed May 10 06:55:01 CST 2017, time=2017-05-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191469, encodeId=406e19146976, content=继续学习。 , beContent=null, objectType=article, channel=null, level=null, likeNumber=100, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzfPkmqRTH5rHib5mcib8Wb3QdXjhfOK1UubQL2lictjJFdFJ6Lc3cnnCOSWqxXZ4Kk6y5GdzDoy764R/0, createdBy=156e1644785, createdName=doctorJiangchao, createdTime=Fri Apr 28 12:01:24 CST 2017, time=2017-04-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=191433, encodeId=9b7e191433f7, content=感谢小编为我们精心准备了如此精辟的精神大餐,小编辛苦了,点个赞吧!, 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/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Fri Apr 28 10:24:52 CST 2017, time=2017-04-28, status=1, ipAttribution=)]
    2017-04-28 ylzr123

    感谢小编为我们精心准备了如此精辟的精神大餐,小编辛苦了,点个赞吧!

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