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Cell Reports:CRISPR挖出大量抗癌靶标

2016-10-24 佚名 生物通

白血病是一种造血系统的恶性肿瘤,俗称“血癌”。急性髓性白血病AML是比较常见的一种白血病,现有治疗药物在临床上的效果并不理想。Wellcome Trust Sanger研究所改良了CRISPR基因编辑技术,并用该技术找到了大量治疗AML的新靶标。这项研究发表在十月十八日的Cell Reports杂志上。细菌一直在与病毒或入侵核酸进行斗争,为此它们演化出了多种防御机制,CRISPR–Cas9适应性免


白血病是一种造血系统的恶性肿瘤,俗称“血癌”。急性髓性白血病AML是比较常见的一种白血病,现有治疗药物在临床上的效果并不理想。Wellcome Trust Sanger研究所改良了CRISPR基因编辑技术,并用该技术找到了大量治疗AML的新靶标。这项研究发表在十月十八日的Cell Reports杂志上。

细菌一直在与病毒或入侵核酸进行斗争,为此它们演化出了多种防御机制,CRISPR–Cas9适应性免疫系统就是其中之一。规律成簇的间隔短回文重复CRISPR与内切酶Cas9的组合,可以在引导RNA的指引下,靶标并切割入侵者的遗传物质。2012年研究者们利用这一特点,将CRISPR系统制成了强大的基因组编辑工具。

研究人员改良过的CRISPR-Cas9能够有效地逐一破坏白血病细胞的所有基因。他们通过这种方式筛选癌细胞的薄弱点,寻找那些影响AML生长和生存的基因。“这是一次鉴定AML基因弱点的系统性尝试,”Sanger 研究所的Dr Kosuke Yusa说。研究显示,近五百个人类基因是白血病细胞不可或缺的,其中两百多个基因可以成为治疗靶标。这些发现为白血病药物研发带来了许多新的可能。

研究人员选择对KAT2A基因进行深入研究。他们发现,抑制KAT2A的确可以影响AML细胞的生长和生存。“KAT2A抑制对多种基因型的AML细胞都有效,这是一个令人振奋的发现,”Dr Konstantinos Tzelepis指出。进一步研究表明,在转基因小鼠的白细胞中破坏KAT2A基因可以抑制AML的发展。当KAT2A基因被破坏时,小鼠的存活期更长。

原始出处

Konstantinos Tzelepis7, Hiroko Koike-Yusa7, Etienne De Braekeleer, Yilong Li.et.al.A CRISPR Dropout Screen Identifies Genetic Vulnerabilities and Therapeutic Targets in Acute Myeloid Leukemia.Cell Reports.2016

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    2016-10-26 yuandd
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    2016-10-26 zhaojie88
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    2016-10-25 yushouqiang

    有点炫,深奥

    0

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    2016-10-24 小袁医生

    这个东西也太复杂了吧

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1869592, encodeId=a1831869592bf, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Wed Jul 12 03:12:00 CST 2017, time=2017-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1275933, encodeId=bff012e59330b, content=<a href='/topic/show?id=755d5211a0' target=_blank style='color:#2F92EE;'>#CRISPR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5211, encryptionId=755d5211a0, topicName=CRISPR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=583c133, createdName=yuandd, createdTime=Wed Oct 26 02:12:00 CST 2016, time=2016-10-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352747, encodeId=de0c1352e47e5, content=<a href='/topic/show?id=827d9996311' target=_blank style='color:#2F92EE;'>#靶标#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99963, encryptionId=827d9996311, topicName=靶标)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Wed Oct 26 02:12:00 CST 2016, time=2016-10-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=151123, encodeId=9dba151123d0, content=有点炫,深奥, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a9b71604602, createdName=yushouqiang, createdTime=Tue Oct 25 13:29:39 CST 2016, time=2016-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=150931, encodeId=489815093123, content=这个东西也太复杂了吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20161024/IMG580E2637B3FB86199.jpg, createdBy=3b491964393, createdName=小袁医生, createdTime=Mon Oct 24 23:22:12 CST 2016, time=2016-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1959851, encodeId=31d7195985149, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sat Oct 29 11:12:00 CST 2016, time=2016-10-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=150808, encodeId=43d415080895, content=学习到了很多,受益匪浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=98, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160717/IMG578BA7C21F5227685.jpg, createdBy=70421925809, createdName=1e0ba702m86(暂无匿称), createdTime=Mon Oct 24 11:35:28 CST 2016, time=2016-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=150807, encodeId=dc3c15080e89, content=很有用处,了解了不少, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160717/IMG578BA7C21F5227685.jpg, createdBy=70421925809, createdName=1e0ba702m86(暂无匿称), createdTime=Mon Oct 24 11:35:20 CST 2016, time=2016-10-24, status=1, ipAttribution=)]
    2016-10-29 维他命
  7. [GetPortalCommentsPageByObjectIdResponse(id=1869592, encodeId=a1831869592bf, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Wed Jul 12 03:12:00 CST 2017, time=2017-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1275933, encodeId=bff012e59330b, content=<a href='/topic/show?id=755d5211a0' target=_blank style='color:#2F92EE;'>#CRISPR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5211, encryptionId=755d5211a0, topicName=CRISPR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=583c133, createdName=yuandd, createdTime=Wed Oct 26 02:12:00 CST 2016, time=2016-10-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352747, encodeId=de0c1352e47e5, content=<a href='/topic/show?id=827d9996311' target=_blank style='color:#2F92EE;'>#靶标#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99963, encryptionId=827d9996311, topicName=靶标)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Wed Oct 26 02:12:00 CST 2016, time=2016-10-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=151123, encodeId=9dba151123d0, content=有点炫,深奥, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a9b71604602, createdName=yushouqiang, createdTime=Tue Oct 25 13:29:39 CST 2016, time=2016-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=150931, encodeId=489815093123, content=这个东西也太复杂了吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20161024/IMG580E2637B3FB86199.jpg, createdBy=3b491964393, createdName=小袁医生, createdTime=Mon Oct 24 23:22:12 CST 2016, time=2016-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1959851, encodeId=31d7195985149, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sat Oct 29 11:12:00 CST 2016, time=2016-10-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=150808, encodeId=43d415080895, content=学习到了很多,受益匪浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=98, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160717/IMG578BA7C21F5227685.jpg, createdBy=70421925809, createdName=1e0ba702m86(暂无匿称), createdTime=Mon Oct 24 11:35:28 CST 2016, time=2016-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=150807, encodeId=dc3c15080e89, content=很有用处,了解了不少, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160717/IMG578BA7C21F5227685.jpg, createdBy=70421925809, createdName=1e0ba702m86(暂无匿称), createdTime=Mon Oct 24 11:35:20 CST 2016, time=2016-10-24, status=1, ipAttribution=)]
    2016-10-24 1e0ba702m86(暂无匿称)

    学习到了很多,受益匪浅

    0

  8. [GetPortalCommentsPageByObjectIdResponse(id=1869592, encodeId=a1831869592bf, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=47, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Wed Jul 12 03:12:00 CST 2017, time=2017-07-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1275933, encodeId=bff012e59330b, content=<a href='/topic/show?id=755d5211a0' target=_blank style='color:#2F92EE;'>#CRISPR#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5211, encryptionId=755d5211a0, topicName=CRISPR)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=583c133, createdName=yuandd, createdTime=Wed Oct 26 02:12:00 CST 2016, time=2016-10-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1352747, encodeId=de0c1352e47e5, content=<a href='/topic/show?id=827d9996311' target=_blank style='color:#2F92EE;'>#靶标#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99963, encryptionId=827d9996311, topicName=靶标)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=zhaojie88, createdTime=Wed Oct 26 02:12:00 CST 2016, time=2016-10-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=151123, encodeId=9dba151123d0, content=有点炫,深奥, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a9b71604602, createdName=yushouqiang, createdTime=Tue Oct 25 13:29:39 CST 2016, time=2016-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=150931, encodeId=489815093123, content=这个东西也太复杂了吧, beContent=null, objectType=article, channel=null, level=null, likeNumber=1, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20161024/IMG580E2637B3FB86199.jpg, createdBy=3b491964393, createdName=小袁医生, createdTime=Mon Oct 24 23:22:12 CST 2016, time=2016-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1959851, encodeId=31d7195985149, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Sat Oct 29 11:12:00 CST 2016, time=2016-10-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=150808, encodeId=43d415080895, content=学习到了很多,受益匪浅, beContent=null, objectType=article, channel=null, level=null, likeNumber=98, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160717/IMG578BA7C21F5227685.jpg, createdBy=70421925809, createdName=1e0ba702m86(暂无匿称), createdTime=Mon Oct 24 11:35:28 CST 2016, time=2016-10-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=150807, encodeId=dc3c15080e89, content=很有用处,了解了不少, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160717/IMG578BA7C21F5227685.jpg, createdBy=70421925809, createdName=1e0ba702m86(暂无匿称), createdTime=Mon Oct 24 11:35:20 CST 2016, time=2016-10-24, status=1, ipAttribution=)]
    2016-10-24 1e0ba702m86(暂无匿称)

    很有用处,了解了不少

    0

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