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Nat commun:在ccRCC中,HIF可通过脂肪酸代谢抑制促使脂质沉淀和癌变

2017-12-09 AlexYang MedSci原创

透明细胞肾细胞癌(ccRCC)是通过它的脂质和糖原在细胞质中沉积的组织学特点来鉴定的。VHL肿瘤抑制子的改变稳定化缺氧诱导因子(HIFs)是透明细胞肿瘤中最为常见的分子特性。但是脂质沉积的意义仍旧未被鉴定。最近,有研究人员通过鉴定线粒体脂肪酸转运、HIF直接靶标基因-棕榈酰基转移酶1A(CPT1A)的限速组分描述了脂质沉积的机制。研究发现,CPT1A可以由HIF1和HIF2抑制,减少脂肪酸转运到线

透明细胞肾细胞癌(ccRCC)是通过它的脂质和糖原在细胞质中沉积的组织学特点来鉴定的。VHL肿瘤抑制子的改变稳定化缺氧诱导因子(HIFs)是透明细胞肿瘤中最为常见的分子特性。但是脂质沉积的意义仍旧未被鉴定。最近,有研究人员通过鉴定线粒体脂肪酸转运、HIF直接靶标基因-棕榈酰基转移酶1A(CPT1A)的限速组分描述了脂质沉积的机制。研究发现,CPT1A可以由HIF1和HIF2抑制,减少脂肪酸转运到线粒体中,并且可促使脂肪酸转化为脂质滴来储存。研究发现,脂质滴的形成与脂质源无关,只在CPT1A受抑制时产生。因此,从功能上讲,CPT1A的抑制对肿瘤的形成非常关键,并且CPT1A表达的提高可以限制肿瘤的生长。在人类肿瘤中,CPT1A的表达和活性和正常肾脏比较降低,并且不良病人治疗结果与CPT1A在TCGA肿瘤中更低的表达有关。最后,研究人员指出,他们的研究鉴定了HIF对脂肪酸代谢的控制,并可以作为ccRCC肿瘤形成过程的必要成员。原始出处:Weinan Du, Luchang Zhang, Adina Brett-Morris et al. HIF drives lipid depositio

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  1. [GetPortalCommentsPageByObjectIdResponse(id=2087226, encodeId=1ebe208e226cb, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Sat Oct 27 20:02:00 CST 2018, time=2018-10-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1827247, encodeId=4cb4182e2478a, content=<a href='/topic/show?id=52e95194b9' target=_blank style='color:#2F92EE;'>#CRC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5194, encryptionId=52e95194b9, topicName=CRC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4cea26, createdName=yxch36, createdTime=Sat Jul 14 22:02:00 CST 2018, time=2018-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2036674, encodeId=d86120366e498, content=<a href='/topic/show?id=3bde1518863' target=_blank style='color:#2F92EE;'>#RCC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15188, encryptionId=3bde1518863, topicName=RCC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d784426, createdName=isabellayj, createdTime=Tue May 08 11:02:00 CST 2018, time=2018-05-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1882694, encodeId=081c188269421, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Mon Apr 09 11:02:00 CST 2018, time=2018-04-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=268601, encodeId=3c22268601dd, content=学习了.涨知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Mon Dec 11 13:21:46 CST 2017, time=2017-12-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1556028, encodeId=dcff1556028f7, content=<a href='/topic/show?id=b3e98813c3' target=_blank style='color:#2F92EE;'>#HIF#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, 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=Mon Dec 11 10:02:00 CST 2017, time=2017-12-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1557062, encodeId=f33b155e062f3, content=<a href='/topic/show?id=154be128170' target=_blank style='color:#2F92EE;'>#癌变#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71281, encryptionId=154be128170, topicName=癌变)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=cd7914850828, createdName=axin014, createdTime=Mon Dec 11 10:02:00 CST 2017, time=2017-12-11, status=1, ipAttribution=)]
    2018-10-27 liuli5079
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    2018-07-14 yxch36
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    2018-05-08 isabellayj
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    2018-04-09 一叶知秋
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    2017-12-11 1ddf0692m34(暂无匿称)

    学习了.涨知识

    0

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    2017-12-11 wrj0126
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    2017-12-11 axin014

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