Cell:HIF-1在缺氧中调节的新靶点!

2017-04-09 MedSci MedSci原创

缺氧不仅影响发育,也是许多人类疾病的病理性刺激。细胞水平上对缺氧的反应依赖于转录因子家族的缺氧诱导因子(HIF)的活性。HIF-1负责急性反应并涉及细胞代谢、细胞死亡和细胞生长的各种基因。近期,一项发表在权威杂志Cells上的研究显示了缺氧导致人赖氨酸(K)特异性脱甲基酶2(KDM2)家族的成员KDM2A和KDM2B以及黑腹果蝇KDM2组蛋白和蛋白脱甲基酶的mRNA水平的增加。在人类细胞中,KDM

缺氧不仅影响发育,也是许多人类疾病的病理性刺激。


细胞水平上对缺氧的反应依赖于转录因子家族的缺氧诱导因子(HIF)的活性。HIF-1负责急性反应并涉及细胞代谢、细胞死亡和细胞生长的各种基因。

近期,一项发表在权威杂志Cells上的研究显示了缺氧导致人赖氨酸(K)特异性脱甲基酶2(KDM2)家族的成员KDM2A和KDM2B以及黑腹果蝇KDM2组蛋白和蛋白脱甲基酶的mRNA水平的增加。

在人类细胞中,KDM2家族成员的mRNA水平在缺氧条件下受HIF-1而不是HIF-2的调节。有趣的是,只有KDM2A蛋白水平以HIF-1依赖性的方式显着诱导,而KDM2B蛋白以细胞类型依赖性方式改变。

重要的是,此项研究证明在人类细胞中,缺氧和HIF-1调节KDM2A的过程发生在启动子水平,HIF-1与RNA聚合酶II募集所需的KDM2A启动子结合。

此项研究结果表明,KDM2是一种新颖的HIF靶点,可以帮助协调细胞对缺氧的反应。此外,这些结果也可能解释了为什么KDM2水平通常在人类癌症中失控。

原始出处:
Batie M, Druker J, et al. KDM2 Family Members are Regulated by HIF-1 in Hypoxia. Cells. 2017 Mar 17;6(1). pii: E8. doi: 10.3390/cells6010008.

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    2018-03-24 维他命
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    2017-04-11 lsndxfj
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    2017-04-11 wrj0126
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    2017-04-10 Jin Chou

    cells,notCell.

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1960127, encodeId=0da6196012e5b, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, 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 Mar 24 09:51:00 CST 2018, time=2018-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869868, encodeId=edfd18698682b, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Thu Sep 28 09:51:00 CST 2017, time=2017-09-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1288208, encodeId=1a57128820840, 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=31, 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=Tue Apr 11 04:51:00 CST 2017, time=2017-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1556022, encodeId=12f81556022f4, content=<a href='/topic/show?id=b3e98813c3' target=_blank style='color:#2F92EE;'>#HIF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=8813, encryptionId=b3e98813c3, topicName=HIF)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=293014689254, createdName=wrj0126, createdTime=Tue Apr 11 04:51:00 CST 2017, time=2017-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=186348, encodeId=a3aa186348a7, content=cells,notCell., beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/ajNVdqHZLLD1O97y3am76k8v12uX92l8MnMUZBZIrorphCDWyEYgqDulOfDXQZLWGiaSibbvm6F0ficxxxDMzwY9g/132, createdBy=bae077124, createdName=Jin Chou, createdTime=Mon Apr 10 07:48:35 CST 2017, time=2017-04-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=186193, encodeId=239b1861939b, content=新的发现了。, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=62d381629, createdName=yafeiliutjh, createdTime=Sun Apr 09 14:15:01 CST 2017, time=2017-04-09, status=1, ipAttribution=)]
    2017-04-09 yafeiliutjh

    新的发现了。

    0

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