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Mol Cancer:科学家发现治疗急性髓性白血病的新靶点

2015-06-05 佚名 生物谷

在白血病细胞中发现的长链非编码RNA(lncRNA)或许会影响酪氨酸激酶靶向白血病疗法的疗效,而目前lncRNA CCDC26的功能并没有被完全解析,而来自广岛大学的研究者则在杂志Molecular Cancer上刊登了他们的最新研究成果,研究者在文章中揭示了CCDC26控制受体酪氨酸激酶KIT表达的机制,相关研究结果或为理解白血病的复发且帮助开发白血病疗法提供一定的帮助。近来转录组学的相关研究发

白血病细胞中发现的长链非编码RNA(lncRNA)或许会影响酪氨酸激酶靶向白血病疗法的疗效,而目前lncRNA CCDC26的功能并没有被完全解析,而来自广岛大学的研究者则在杂志Molecular Cancer上刊登了他们的最新研究成果,研究者在文章中揭示了CCDC26控制受体酪氨酸激酶KIT表达的机制,相关研究结果或为理解白血病的复发且帮助开发白血病疗法提供一定的帮助。

近来转录组学的相关研究发现了相对较长但并未转录翻译成为蛋白的大量RNAs,其中lncRNA被认为可以调节其它基因的表达,而机体中lncRNAs的突变或失衡往往会引发一系列疾病,比如癌症,然而lncRNAs的分子功能目前尚未被阐明。

研究者Tetsuo Hirano表示,我们发现细胞中名为lncRNA CCDC26的基因的敲除会明显上调KIT基因的表达,而KIT基因的过度表达则在急性髓性白血病中被发现;研究者发现CCDC26的转录在人类髓样白血病细胞系的细胞核碎片中处于较高的水平,同时CCDC26的敲除会诱发CCDC26 包含内含子的转录物的抑制,进而导致转录基因被抑制。CCDC26敲除的白血病细胞往往在血清剥除后的生存期会延长,而KIT特殊的抑制剂则会逆转细胞生存期的延长。

最后研究者表示,CCDC26可以通过调节KIT基因的表达来控制髓样白血病细胞的生长,异常的CCDC26 RNA结构会调整KIT的表达从而诱导意想不到的基因表达;因此以CCDC26拷贝数突变为主要特性的白血病或许可以通过靶向作用KIT的疗法来进行治疗。

原始出处:

Tetsuo Hirano,corresponding author Ryoko Yoshikawa, Hironori Harada, Yuka Harada, Atsuhiko Ishida, and Takeshi Yamazaki.Long noncoding RNA, CCDC26, controls myeloid leukemia cell growth through regulation of KIT expression.Mol Cancer, April 19, 2015.doi:10.1186/s12943-015-0364-7

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    2017-03-22 wmu姿

    新发现,新进展

    0

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    2015-06-07 lsndxfj
  4. [GetPortalCommentsPageByObjectIdResponse(id=181920, encodeId=bd1a18192078, content=新发现,新进展, beContent=null, objectType=article, channel=null, level=null, likeNumber=103, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=071c2012037, createdName=wmu姿, createdTime=Wed Mar 22 10:58:56 CST 2017, time=2017-03-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1802269, encodeId=713e1802269bc, content=<a href='/topic/show?id=acfae485578' target=_blank style='color:#2F92EE;'>#科学家发现#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74855, encryptionId=acfae485578, topicName=科学家发现)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e572480, createdName=旅苦化文_208, createdTime=Wed Feb 24 17:27:00 CST 2016, time=2016-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1288155, encodeId=c7c31288155f7, content=<a href='/topic/show?id=f10658e342d' target=_blank style='color:#2F92EE;'>#新靶点#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58734, encryptionId=f10658e342d, topicName=新靶点)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=acc3210, createdName=lsndxfj, createdTime=Sun Jun 07 00:27:00 CST 2015, time=2015-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1514390, encodeId=9f88151439039, content=<a href='/topic/show?id=1ae010211143' target=_blank style='color:#2F92EE;'>#髓性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=102111, encryptionId=1ae010211143, topicName=髓性)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jun 07 00:27:00 CST 2015, time=2015-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26164, encodeId=1d7b26164f1, content=非编码RNA作为靶点还为时过早,另外这种靶点在白血病的分布大概有多少,都直接影响到他的临床可用性, beContent=null, objectType=article, channel=null, level=null, likeNumber=159, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c4a5105539, createdName=lovetcm, createdTime=Sat Jun 06 13:13:00 CST 2015, time=2015-06-06, status=1, ipAttribution=)]
    2015-06-07 zhouqu_8
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    2015-06-06 lovetcm

    非编码RNA作为靶点还为时过早,另外这种靶点在白血病的分布大概有多少,都直接影响到他的临床可用性

    0

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