Nat Commun:上海仁济医院发现大肠癌潜在治疗新靶点

2018-02-09 黄辛 袁蕙芸 科学网

上海交通大学医学院附属仁济医院陈萦晅、房静远课题组研究发现,位于线粒体的sirtuin家族蛋白SIRT5通过促进大肠癌细胞的谷氨酰胺代谢在大肠癌的发展中发挥重要作用。这项研究丰富了大肠癌代谢调控的机制,并为SIRT5作为大肠癌潜在治疗靶点奠定理论和实验基础。相关研究成果日前在线发表于《自然-通讯》(Nature Communications)。


上海交通大学医学院附属仁济医院陈萦晅、房静远课题组研究发现,位于线粒体的sirtuin家族蛋白SIRT5通过促进大肠癌细胞的谷氨酰胺代谢在大肠癌的发展中发挥重要作用。这项研究丰富了大肠癌代谢调控的机制,并为SIRT5作为大肠癌潜在治疗靶点奠定理论和实验基础。相关研究成果日前在线发表于《自然-通讯》(Nature Communications)。

据陈萦晅教授介绍,代谢重编程是肿瘤的特征之一。肿瘤区别于正常细胞的代谢特征为特异性杀伤肿瘤细胞提供可能,蛋白质翻译后修饰在肿瘤代谢的精准调控中起着重要作用。该研究中,研究人员发现,位于线粒体的sirtuin家族蛋白SIRT5通过促进大肠癌细胞的谷氨酰胺代谢在大肠癌的发展中发挥重要作用。谷氨酰胺代谢酶LUD1参与介导了SIRT5的促肿瘤作用。SIRT5诱导的GLUD1赖氨酸残基的去戊二酰化明显上调其酶活性,并进一步促进谷氨酰胺回补三羧酸循环,提供肿瘤细胞快速分裂增殖所必需的前体物质。

仁济医院消化科对胃肠肿瘤的研究长达30多年,由单一的肿瘤发生机制病原学研究及其干预预防,到表观遗传学机制探讨,再到信号通路研究,直至环境因素特别是肠道菌群影响结直肠癌发生和发展的研究。曾以通讯作者发表Cell、Lancet Oncol、Cancer Discovery等著名期刊论文,以第一完成人和第一完成单位获国家科技进步二等奖、中华医学科技一等奖、教育部科技进步一等奖和上海市科技进步一等奖等;成为NSFC创新群体和教育部创新团队。

陈萦晅在邱德凯教授和房静远教授的指导下从事结直肠癌发生表观遗传学研究近二十年,近5年致力于结直肠癌代谢这一国际肿瘤研究的热点领域进行研究,先后负责多项国家自然基金项目,以独立通讯作者发表多篇影响因子超过5分的SCI论文,包括Nat Commun、Oncogene、 Carcinogenesis、Int J Cancer、Br J Cancer等主流期刊论文,这标志着仁济医院消化科结直肠肿瘤代谢相关研究进入新阶段。

据悉,该研究论文通讯作者为陈萦晅教授,博士生王韵茜为第一作者;这项研究得到了国家自然科学基金面上项目等多个项目的资助支持。

原始出处:

Yun-Qian Wang,et al.Sirtuin5 contributes to colorectal carcinogenesis by enhancing glutaminolysis in a deglutarylation-dependent manner.Nature Communicationsvolume 9, Article number: 545 (2018) doi:10.1038/s41467-018-02951-4

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    2018-08-10 liye789132251
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    2018-04-24 liuli5079
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    2018-02-11 lsndxfj
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  5. [GetPortalCommentsPageByObjectIdResponse(id=1882844, encodeId=570118828448e, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri Aug 10 18:52:00 CST 2018, time=2018-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2087282, encodeId=b695208e28252, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Tue Apr 24 01:52:00 CST 2018, time=2018-04-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1288246, encodeId=66471288246a7, 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=26, 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 Feb 11 14:52:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441005, encodeId=cacd14410053b, content=<a href='/topic/show?id=9776252499c' target=_blank style='color:#2F92EE;'>#仁济医院#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25249, encryptionId=9776252499c, topicName=仁济医院)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2ca24772092, createdName=12498a49m61暂无昵称, createdTime=Sun Feb 11 14:52:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1517374, encodeId=0afb151e37410, content=<a href='/topic/show?id=817b64646b3' target=_blank style='color:#2F92EE;'>#治疗新靶点#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64646, encryptionId=817b64646b3, topicName=治疗新靶点)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=251911073486, createdName=12498f1em11(暂无昵称), createdTime=Sun Feb 11 14:52:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=286713, encodeId=992b286e13c2, content=阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/09/07/a9772c74ffd6edc03a7f9af07b4747f6.jpg, createdBy=b3722138742, createdName=sunfeifeiyang, createdTime=Sat Feb 10 07:42:21 CST 2018, time=2018-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=286674, encodeId=dae12866e4c4, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a8f22260741, createdName=121832a9m88暂无昵称, createdTime=Sat Feb 10 06:32:09 CST 2018, time=2018-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=286664, encodeId=c26f2866646e, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/01/15/8213228fe923915543544ad3da7e1c64.jpg, createdBy=6bd82014262, createdName=秀红, createdTime=Sat Feb 10 06:26:06 CST 2018, time=2018-02-10, status=1, ipAttribution=)]
  6. [GetPortalCommentsPageByObjectIdResponse(id=1882844, encodeId=570118828448e, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri Aug 10 18:52:00 CST 2018, time=2018-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2087282, encodeId=b695208e28252, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Tue Apr 24 01:52:00 CST 2018, time=2018-04-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1288246, encodeId=66471288246a7, 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=26, 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 Feb 11 14:52:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441005, encodeId=cacd14410053b, content=<a href='/topic/show?id=9776252499c' target=_blank style='color:#2F92EE;'>#仁济医院#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25249, encryptionId=9776252499c, topicName=仁济医院)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2ca24772092, createdName=12498a49m61暂无昵称, createdTime=Sun Feb 11 14:52:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1517374, encodeId=0afb151e37410, content=<a href='/topic/show?id=817b64646b3' target=_blank style='color:#2F92EE;'>#治疗新靶点#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64646, encryptionId=817b64646b3, topicName=治疗新靶点)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=251911073486, createdName=12498f1em11(暂无昵称), createdTime=Sun Feb 11 14:52:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=286713, encodeId=992b286e13c2, content=阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/09/07/a9772c74ffd6edc03a7f9af07b4747f6.jpg, createdBy=b3722138742, createdName=sunfeifeiyang, createdTime=Sat Feb 10 07:42:21 CST 2018, time=2018-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=286674, encodeId=dae12866e4c4, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a8f22260741, createdName=121832a9m88暂无昵称, createdTime=Sat Feb 10 06:32:09 CST 2018, time=2018-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=286664, encodeId=c26f2866646e, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/01/15/8213228fe923915543544ad3da7e1c64.jpg, createdBy=6bd82014262, createdName=秀红, createdTime=Sat Feb 10 06:26:06 CST 2018, time=2018-02-10, status=1, ipAttribution=)]
    2018-02-10 sunfeifeiyang

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=1882844, encodeId=570118828448e, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Fri Aug 10 18:52:00 CST 2018, time=2018-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2087282, encodeId=b695208e28252, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Tue Apr 24 01:52:00 CST 2018, time=2018-04-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1288246, encodeId=66471288246a7, 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=26, 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 Feb 11 14:52:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1441005, encodeId=cacd14410053b, content=<a href='/topic/show?id=9776252499c' target=_blank style='color:#2F92EE;'>#仁济医院#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=25249, encryptionId=9776252499c, topicName=仁济医院)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=2ca24772092, createdName=12498a49m61暂无昵称, createdTime=Sun Feb 11 14:52:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1517374, encodeId=0afb151e37410, content=<a href='/topic/show?id=817b64646b3' target=_blank style='color:#2F92EE;'>#治疗新靶点#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=64646, encryptionId=817b64646b3, topicName=治疗新靶点)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=251911073486, createdName=12498f1em11(暂无昵称), createdTime=Sun Feb 11 14:52:00 CST 2018, time=2018-02-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=286713, encodeId=992b286e13c2, content=阅, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/09/07/a9772c74ffd6edc03a7f9af07b4747f6.jpg, createdBy=b3722138742, createdName=sunfeifeiyang, createdTime=Sat Feb 10 07:42:21 CST 2018, time=2018-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=286674, encodeId=dae12866e4c4, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a8f22260741, createdName=121832a9m88暂无昵称, createdTime=Sat Feb 10 06:32:09 CST 2018, time=2018-02-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=286664, encodeId=c26f2866646e, content=学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2018/01/15/8213228fe923915543544ad3da7e1c64.jpg, createdBy=6bd82014262, createdName=秀红, createdTime=Sat Feb 10 06:26:06 CST 2018, time=2018-02-10, status=1, ipAttribution=)]
    2018-02-10 121832a9m88暂无昵称

    学习了

    0

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    2018-02-10 秀红

    学习了

    0

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医学技术的发展,使绝大部分结直肠癌手术都可以做到微创,伤口很小,出院时大多已经愈合。肠癌患者中约60%为直肠癌,直肠癌患者中又有部分人患病位置较低,处于中下位。为彻底清除病灶,这部分患者可能需要切掉肛门,另做一个肠造口。他们的生活护理,将面临更多问题。

eLife:大肠癌化疗敏感性为何会转变为耐药性?

肿瘤获得性耐药性是阻碍人类恶性肿瘤发病率和死亡率的一大障碍。导致大肠癌由化疗敏感性转变为耐药性之间的确切机制目前尚未清楚。本研究中,研究人员发现LRP16可选择性作用,并激活双链RNA依赖蛋白激酶(PKR),并可有助于PKR和IKKβ三元络合物的形成,延长ADP核糖(PAR)依赖核因子B(NF-κB)的转活,此过程是由DNA损伤剂引起,由此获得药物耐药性。此外,研究人员还发现了一种小分子——MRS

日本借助人工智能 0.3秒诊断大肠癌

最近,日本公布了一项人工智能成果,不到一秒就可以测出大肠息肉是否存在癌症。

[中美大肠癌多学科综合治疗研讨会]徐烨教授:紧跟前沿、理论联系实践,全方位提高我国大肠癌临床诊治水平

中美大肠癌多学科综合治疗研讨会聚集大肠癌领域最新进展,力争把最新理念、最新研究成果传递给中国大肠癌治疗的各领域、各层次的临床医生。大肠癌的治疗需要大肠外科、肝外科、胸外科、肿瘤内科、放疗科、介入科、影像科、病理科等多学科协同参与,通过多学科治疗(MDT)可让患者得到更大的生存获益。基层医疗机构可能由于治疗理念更新不及时等原因,在MDT开展和实施中可能存在一定的不足,因此定期及时了解大肠癌治疗的新理

大肠癌发病信号,你了解吗?

近年来,我国大肠癌发病率不断上升,已成为恶性肿瘤中排在第二位的“杀手”,我国大肠癌的平均发病年龄在五十岁左右,并有提前趋势。

Hum Mol Genet:大肠癌组织缺氧区可改变miRNAs的表达

实体瘤具有氧气梯度和接近及完全缺氧的区域。缺氧导致结直肠癌(CRC)对5-氟尿嘧啶(5-FU)化疗的敏感性降低。微小RNA(miRNAs)是缺氧传感器,且与正常氧含量(20.9%)相比,维持在缺氧条件下(1%和0.2%氧气)的6种CRC细胞系(结肠癌:DLD-1,HCT116和HT29;直肠癌:HT55,SW837和VACO4S)中的miRNAs持续改变 。CRC细胞系也显示,在缺氧条件下氨基酸代