Baidu
map

Nat Commun:科学家发现结直肠癌发病新机制

2014-06-25 佚名 不详

中国科学家发现结直肠癌发病新机制。解放军军事医学科学院放射与辐射医学研究所张令强课题组通过研究,首次在国际上揭示泛素连接酶Smurf1是促进结直肠癌发生发展,并且导致病人预后差的一个重要因子。谢萍、张明华、何珊等研究人员通过对336例病人的结直肠癌样本分析发现,泛素类蛋白通路的修饰酶体系在结直肠癌中也呈现高表达,它们与Smurf1协同作用,促进了对抑癌蛋白的快速降解,从而解释了Smurf1为何具有

中国科学家发现结直肠癌发病新机制。解放军军事医学科学院放射与辐射医学研究所张令强课题组通过研究,首次在国际上揭示泛素连接酶Smurf1是促进结直肠癌发生发展,并且导致病人预后差的一个重要因子。谢萍、张明华、何珊等研究人员通过对336例病人的结直肠癌样本分析发现,泛素类蛋白通路的修饰酶体系在结直肠癌中也呈现高表达,它们与Smurf1协同作用,促进了对抑癌蛋白的快速降解,从而解释了Smurf1为何具有促癌功能。

世界著名学术期刊《自然—通讯》5月13日晚在线发表了这一新成果。

中国科学院院士、蛋白质组学国家重点实验室主任贺福初告诉记者,这项研究的另一个科学意义在于,此前学术界揭示的这种连接酶均为锌指类型,而Smurf1则属于全新类型的连接酶,两者作用机制不同,并且Smurf1所代表的模式从酵母到哺乳动物都是保守存在的。这为深入理解类泛素化修饰的生物学意义与作用机理开启了新的思路。

结直肠癌是中国常见疾病,居恶性肿瘤发病率第四位,在北京、上海等特大城市已居癌症发病率的第三位。改革开放以来,随着民众生活水平的提高及饮食结构的改变,结肠癌比例亦逐渐增多,且有年轻化的趋势。结直肠癌发病隐匿,早期很难发现,中晚期患者较多,常常危及生命。目前,随着相关研究的深入,靶向药物已成为结直肠癌治疗的新选择。

据张令强研究员介绍,此项成果有助于临床对结直肠癌预后的判断。此外,他们正在研发的抑制剂有望用于结直肠癌的临床治疗,研发Smurf1酶活性的小分子抑制物也将可能成为新的抗肿瘤药物。

《自然—通讯》是英国自然出版集团于2010年新发行的一种综合性学术期刊,2012年位列全球同类期刊第三。张令强课题组隶属于贺福初院士领衔的蛋白质组学国家重点实验室研究团队,他们刚刚获得2013年度国家科技进步创新团队奖和北京市科学技术一等奖。

原始出处

Xie P1, Zhang M2, He S2, Lu K3, Chen Y3, Xing G3, Lu Y3, Liu P4, Li Y5, Wang S5, Chai N6, Wu J6, Deng H6, Wang HR7, Cao Y3, Zhao F3, Cui Y3, Wang J3, He F3, Zhang L8.The covalent modifier Nedd8 is critical for the activation of Smurf1 ubiquitin ligase in tumorigenesis.Nat Commun. 2014 May 13

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1802218, encodeId=51ad1802218c7, 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=64, 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=Fri Jun 05 10:15:00 CST 2015, time=2015-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2086710, encodeId=93922086e10f2, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Mon Mar 23 03:15:00 CST 2015, time=2015-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880134, encodeId=fcdf188013461, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Mon Feb 09 20:15:00 CST 2015, time=2015-02-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1799792, encodeId=72cf1e9979221, content=<a href='/topic/show?id=9e3fe127909' target=_blank style='color:#2F92EE;'>#癌发病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71279, encryptionId=9e3fe127909, topicName=癌发病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e2c92500045, createdName=12498636m49(暂无昵称), createdTime=Sun Mar 15 01:15:00 CST 2015, time=2015-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1452696, encodeId=7b21145269657, content=<a href='/topic/show?id=098ee8679ad' target=_blank style='color:#2F92EE;'>#结直肠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=78679, encryptionId=098ee8679ad, topicName=结直肠)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9ace5575596, createdName=crystal0564, createdTime=Fri Jun 27 00:15:00 CST 2014, time=2014-06-27, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1802218, encodeId=51ad1802218c7, 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=64, 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=Fri Jun 05 10:15:00 CST 2015, time=2015-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2086710, encodeId=93922086e10f2, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Mon Mar 23 03:15:00 CST 2015, time=2015-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880134, encodeId=fcdf188013461, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Mon Feb 09 20:15:00 CST 2015, time=2015-02-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1799792, encodeId=72cf1e9979221, content=<a href='/topic/show?id=9e3fe127909' target=_blank style='color:#2F92EE;'>#癌发病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71279, encryptionId=9e3fe127909, topicName=癌发病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e2c92500045, createdName=12498636m49(暂无昵称), createdTime=Sun Mar 15 01:15:00 CST 2015, time=2015-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1452696, encodeId=7b21145269657, content=<a href='/topic/show?id=098ee8679ad' target=_blank style='color:#2F92EE;'>#结直肠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=78679, encryptionId=098ee8679ad, topicName=结直肠)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9ace5575596, createdName=crystal0564, createdTime=Fri Jun 27 00:15:00 CST 2014, time=2014-06-27, status=1, ipAttribution=)]
    2015-03-23 liuli5079
  3. [GetPortalCommentsPageByObjectIdResponse(id=1802218, encodeId=51ad1802218c7, 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=64, 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=Fri Jun 05 10:15:00 CST 2015, time=2015-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2086710, encodeId=93922086e10f2, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Mon Mar 23 03:15:00 CST 2015, time=2015-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880134, encodeId=fcdf188013461, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Mon Feb 09 20:15:00 CST 2015, time=2015-02-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1799792, encodeId=72cf1e9979221, content=<a href='/topic/show?id=9e3fe127909' target=_blank style='color:#2F92EE;'>#癌发病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71279, encryptionId=9e3fe127909, topicName=癌发病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e2c92500045, createdName=12498636m49(暂无昵称), createdTime=Sun Mar 15 01:15:00 CST 2015, time=2015-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1452696, encodeId=7b21145269657, content=<a href='/topic/show?id=098ee8679ad' target=_blank style='color:#2F92EE;'>#结直肠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=78679, encryptionId=098ee8679ad, topicName=结直肠)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9ace5575596, createdName=crystal0564, createdTime=Fri Jun 27 00:15:00 CST 2014, time=2014-06-27, status=1, ipAttribution=)]
    2015-02-09 liye789132251
  4. [GetPortalCommentsPageByObjectIdResponse(id=1802218, encodeId=51ad1802218c7, 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=64, 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=Fri Jun 05 10:15:00 CST 2015, time=2015-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2086710, encodeId=93922086e10f2, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Mon Mar 23 03:15:00 CST 2015, time=2015-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880134, encodeId=fcdf188013461, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Mon Feb 09 20:15:00 CST 2015, time=2015-02-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1799792, encodeId=72cf1e9979221, content=<a href='/topic/show?id=9e3fe127909' target=_blank style='color:#2F92EE;'>#癌发病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71279, encryptionId=9e3fe127909, topicName=癌发病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e2c92500045, createdName=12498636m49(暂无昵称), createdTime=Sun Mar 15 01:15:00 CST 2015, time=2015-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1452696, encodeId=7b21145269657, content=<a href='/topic/show?id=098ee8679ad' target=_blank style='color:#2F92EE;'>#结直肠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=78679, encryptionId=098ee8679ad, topicName=结直肠)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9ace5575596, createdName=crystal0564, createdTime=Fri Jun 27 00:15:00 CST 2014, time=2014-06-27, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1802218, encodeId=51ad1802218c7, 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=64, 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=Fri Jun 05 10:15:00 CST 2015, time=2015-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2086710, encodeId=93922086e10f2, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=57, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Mon Mar 23 03:15:00 CST 2015, time=2015-03-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880134, encodeId=fcdf188013461, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Mon Feb 09 20:15:00 CST 2015, time=2015-02-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1799792, encodeId=72cf1e9979221, content=<a href='/topic/show?id=9e3fe127909' target=_blank style='color:#2F92EE;'>#癌发病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71279, encryptionId=9e3fe127909, topicName=癌发病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e2c92500045, createdName=12498636m49(暂无昵称), createdTime=Sun Mar 15 01:15:00 CST 2015, time=2015-03-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1452696, encodeId=7b21145269657, content=<a href='/topic/show?id=098ee8679ad' target=_blank style='color:#2F92EE;'>#结直肠#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=49, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=78679, encryptionId=098ee8679ad, topicName=结直肠)], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=9ace5575596, createdName=crystal0564, createdTime=Fri Jun 27 00:15:00 CST 2014, time=2014-06-27, status=1, ipAttribution=)]

相关资讯

ASCO 2014:贝伐单抗+化疗方案和西妥昔单抗+化疗方案一线治疗转移性结直肠癌患者的疗效的研究(CALGB/SWOG 80405研究)

2014年美国临床肿瘤学会年会已于当地时间5月30日-6月3日在芝加哥成功举行。会议期间公布了一些非常重要的临床试验的结果,其中“Plenary Session”的四项研究最受关注和期待。下面和大家分享其中一项比较贝伐单抗+化疗方案和西妥昔单抗+化疗方案一线治疗转移性结直肠癌患者的疗效的研究(CALGB/SWOG 80405)。 伊立替康/五氟尿嘧啶/亚叶酸(FOLFIRI方案)或奥沙利铂/五氟

ASCO 2014:陈功教授点评结直肠癌口头报告

2014年5月30日至6月3日,第50届美国临床肿瘤学会年会(ASCO2014)在美国召开。中山大学肿瘤防治中心的陈功教授对摘要号:3500、3503、3504的研究进行了点评,具体内容如下: 摘要3500:德国AIO-04试验:奥沙利铂加入术前同步放化疗和术后辅助化疗显著延长局部进展期直肠癌的DFS 该研究旨在探讨将奥沙利铂加入5-FU为基础的术前同步放化疗(CRT)及术后辅助化疗(CT),

ASCO 2014:高TIMP-1水平可作为EGFR抑制疗法生物标志物

目前,RAS状态是表皮生长因子受体(EGFR)抑制剂用于转移性结直肠癌(mCRC)治疗患者选择的唯一生物标志物。然而,并不是所有的KRAS野生型肿瘤均对EGFR抑制产生响应,一些KRAS突变型肿瘤患者也可从治疗中获益。若想提高患者EGFR受体抑制剂治疗选择性,还需开发新的生物标志物。 金属蛋白酶等离子体组织抑制剂-1(TIMP-1)诱发细胞内信号以激活Akt-生存通路。丹麦哥本哈根大学研究人员提出

Cancer:结直肠癌筛查成功预防了50万例癌症

专家估计,美国在过去三十年间广泛开展的癌症筛查项目,成功预防了500,000例结直肠癌病例。 研究作者,来自耶鲁大学医学院的放射治疗学副教授Dr. James Yu说:“这些数字代表了真实存在患者和家庭,他们都幸免于确诊癌症和治疗所带来的伤害。在癌症防治领域,结直肠癌筛查是我们取得最为突出的成就。”【原文下载】 纳入研究的筛查项目在1976年至2009年间开展,共包括三种检查方式:结肠

Immunity:免疫细胞γδT17可反映结直肠癌恶性程度

浙江大学医学院附属第二医院肿瘤外科/肿瘤研究所黄建教授等通过基础与临床研究发现,一种免疫细胞γδT17细胞与结直肠癌的恶性程度密切相关。研究论文5月15日在《细胞》(Cell)子刊《免疫》(Immunity)杂志以封面文章的形式在线发表。 γδT细胞是一类分布于外周血及黏膜组织的非组织相容性复合体(MHC)限制性固有T淋巴细胞,是机体抵御疾病感染、肿瘤形成的重要细胞亚群。已有学者发现,γ

ASCO 2014:沙特阿拉伯年轻结直肠癌患者生存情况较老年患者更差

之前的几项关于年轻结直肠癌(CRC)患者预后的研究显示出了相互矛盾的结果。沙特阿拉伯阿卜杜拉国王医疗城等机构的研究人员进行了一项回顾性研究,目的是对沙特阿拉伯年轻结直肠癌患者的临床病理学特征进行评估。 患者为2007年至2011年间诊断出患有结直肠癌的年轻患者(≤40岁)的,这些患者来源于沙特阿拉伯西部四个治疗中心。研究人员收集了患者的临床病理学特征、肿瘤标志物、疾病复发、疾病进展和死亡信息。将患

Baidu
map
Baidu
map
Baidu
map