Baidu
map

JCI:肿瘤微环境对肿瘤转移的影响:FBXW7蛋白新功能被发现

2015-01-05 MedSci MedSci原创

宿主微环境中缺失FBXW7可促进肿瘤转移 肿瘤发生转移是导致肿瘤患者死亡的重要原因。而且肿瘤转移的原因复杂,发生机制尚未明确。目前肿瘤与宿主微环境之间的相互作用与关系成为了研究的热点之一。骨髓来源的细胞(BMDCs)包括了T细胞、B细胞、巨噬细胞等,它们在促进肿瘤发生、发展、侵袭、转移、血管生成中发挥了重要作用。 F-box蛋白家族成员之一FBXW7是一种泛素连接酶,是c-MYC、NOTC

宿主微环境中缺失FBXW7可促进肿瘤转移

肿瘤发生转移是导致肿瘤患者死亡的重要原因。而且肿瘤转移的原因复杂,发生机制尚未明确。目前肿瘤与宿主微环境之间的相互作用与关系成为了研究的热点之一。骨髓来源的细胞(BMDCs)包括了T细胞、B细胞、巨噬细胞等,它们在促进肿瘤发生、发展、侵袭、转移、血管生成中发挥了重要作用。

F-box蛋白家族成员之一FBXW7是一种泛素连接酶,是c-MYC、NOTCH、cyclin E、c-JUN、KLF5等重要转录因子的识别受体之一,因此它被认为是一种抑癌分子。它的编码基因在大多人类肿瘤中发生突变。多数前人的研究都将目光聚集在了FBXW7如何在肿瘤细胞中发挥抑癌作用,本研究另辟蹊径,在宿主微环境中验证了FBXW7抑制肿瘤转移的能力。该研究结果发表于2015年1月4日的The Journal of Clinical Investigation杂志。

研究人员在鼠源骨髓间充质干细胞中敲除Fbxw7,发现可以诱导NOTCH的积累并随后转录活化Ccl2。FBXW7缺陷小鼠表现出了血清趋化因子CCL2水平的上升,并导致了单核细胞髓源性抑制细胞和巨噬细胞在肿瘤位点的募集,以上是促进肿瘤转移的重要因素。对FBXW7缺陷小鼠给予CCL2受体拮抗剂可以阻断肿瘤转移的上升。此外,芯片结果显示,在乳腺癌的患者中,外周血的FBXW7与血清CCL2水平和疾病预后水平相关。

以上结果综合表明,FBXW7不仅能够通过细胞自主方式,还能够通过一种非细胞自发性方式(即对肿瘤微环境的作用)抑制肿瘤发展。同时,FBXW7/NOTCH/CCL2通路的调节可能成为抑制肿瘤转移的潜在靶点。

原始出处

Kanae Yumimoto1, Sayuri Akiyoshi2, Hiroki Ueo2, Yasuaki Sagara3, Ichiro Onoyama1, Hiroaki Ueo4, Shinji Ohno5, Masaki Mori6, Koshi Mimori2 and Keiichi I. Nakayama1.F-box protein FBXW7 inhibits cancer metastasis in a non-cell-autonomous manner.JCI.2014 

本文是MedSci原创,转载请注明出处,非常感谢!

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 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1982001, encodeId=3955198200110, content=<a href='/topic/show?id=12c010266f0' target=_blank style='color:#2F92EE;'>#JCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10266, encryptionId=12c010266f0, topicName=JCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Wed Jan 28 22:09:00 CST 2015, time=2015-01-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1923888, encodeId=73fb19238880c, content=<a href='/topic/show?id=002658104e8' target=_blank style='color:#2F92EE;'>#新功能#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58104, encryptionId=002658104e8, topicName=新功能)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/L2dMhrxjvSWuPWKZZP1I83Rw21EWia7LVTYJibLQkb4oTibrYLwhnAXntTBWR3FruIzKfNMiaBwhYV0AKNmiaNxfialg/132, createdBy=6ea92500119, createdName=ms9608593228839890, createdTime=Mon Jan 19 01:09:00 CST 2015, time=2015-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079908, encodeId=7e1920e990815, content=<a href='/topic/show?id=42bde27623' target=_blank style='color:#2F92EE;'>#FBXW7#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7276, encryptionId=42bde27623, topicName=FBXW7)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3609256, createdName=zhu_jun9837, createdTime=Fri Nov 06 23:09:00 CST 2015, time=2015-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1291613, encodeId=ca3e1291613ec, content=<a href='/topic/show?id=137a831151a' target=_blank style='color:#2F92EE;'>#肿瘤转移#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=83115, encryptionId=137a831151a, topicName=肿瘤转移)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1be8234, createdName=sunyl07, createdTime=Wed Jan 07 01:09:00 CST 2015, time=2015-01-07, status=1, ipAttribution=)]
    2015-01-28 caobinglei8079
  2. [GetPortalCommentsPageByObjectIdResponse(id=1982001, encodeId=3955198200110, content=<a href='/topic/show?id=12c010266f0' target=_blank style='color:#2F92EE;'>#JCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10266, encryptionId=12c010266f0, topicName=JCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Wed Jan 28 22:09:00 CST 2015, time=2015-01-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1923888, encodeId=73fb19238880c, content=<a href='/topic/show?id=002658104e8' target=_blank style='color:#2F92EE;'>#新功能#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58104, encryptionId=002658104e8, topicName=新功能)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/L2dMhrxjvSWuPWKZZP1I83Rw21EWia7LVTYJibLQkb4oTibrYLwhnAXntTBWR3FruIzKfNMiaBwhYV0AKNmiaNxfialg/132, createdBy=6ea92500119, createdName=ms9608593228839890, createdTime=Mon Jan 19 01:09:00 CST 2015, time=2015-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079908, encodeId=7e1920e990815, content=<a href='/topic/show?id=42bde27623' target=_blank style='color:#2F92EE;'>#FBXW7#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7276, encryptionId=42bde27623, topicName=FBXW7)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3609256, createdName=zhu_jun9837, createdTime=Fri Nov 06 23:09:00 CST 2015, time=2015-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1291613, encodeId=ca3e1291613ec, content=<a href='/topic/show?id=137a831151a' target=_blank style='color:#2F92EE;'>#肿瘤转移#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=83115, encryptionId=137a831151a, topicName=肿瘤转移)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1be8234, createdName=sunyl07, createdTime=Wed Jan 07 01:09:00 CST 2015, time=2015-01-07, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1982001, encodeId=3955198200110, content=<a href='/topic/show?id=12c010266f0' target=_blank style='color:#2F92EE;'>#JCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10266, encryptionId=12c010266f0, topicName=JCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Wed Jan 28 22:09:00 CST 2015, time=2015-01-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1923888, encodeId=73fb19238880c, content=<a href='/topic/show?id=002658104e8' target=_blank style='color:#2F92EE;'>#新功能#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58104, encryptionId=002658104e8, topicName=新功能)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/L2dMhrxjvSWuPWKZZP1I83Rw21EWia7LVTYJibLQkb4oTibrYLwhnAXntTBWR3FruIzKfNMiaBwhYV0AKNmiaNxfialg/132, createdBy=6ea92500119, createdName=ms9608593228839890, createdTime=Mon Jan 19 01:09:00 CST 2015, time=2015-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079908, encodeId=7e1920e990815, content=<a href='/topic/show?id=42bde27623' target=_blank style='color:#2F92EE;'>#FBXW7#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7276, encryptionId=42bde27623, topicName=FBXW7)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3609256, createdName=zhu_jun9837, createdTime=Fri Nov 06 23:09:00 CST 2015, time=2015-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1291613, encodeId=ca3e1291613ec, content=<a href='/topic/show?id=137a831151a' target=_blank style='color:#2F92EE;'>#肿瘤转移#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=83115, encryptionId=137a831151a, topicName=肿瘤转移)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1be8234, createdName=sunyl07, createdTime=Wed Jan 07 01:09:00 CST 2015, time=2015-01-07, status=1, ipAttribution=)]
    2015-11-06 zhu_jun9837
  4. [GetPortalCommentsPageByObjectIdResponse(id=1982001, encodeId=3955198200110, content=<a href='/topic/show?id=12c010266f0' target=_blank style='color:#2F92EE;'>#JCI#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10266, encryptionId=12c010266f0, topicName=JCI)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Wed Jan 28 22:09:00 CST 2015, time=2015-01-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1923888, encodeId=73fb19238880c, content=<a href='/topic/show?id=002658104e8' target=_blank style='color:#2F92EE;'>#新功能#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58104, encryptionId=002658104e8, topicName=新功能)], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/L2dMhrxjvSWuPWKZZP1I83Rw21EWia7LVTYJibLQkb4oTibrYLwhnAXntTBWR3FruIzKfNMiaBwhYV0AKNmiaNxfialg/132, createdBy=6ea92500119, createdName=ms9608593228839890, createdTime=Mon Jan 19 01:09:00 CST 2015, time=2015-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2079908, encodeId=7e1920e990815, content=<a href='/topic/show?id=42bde27623' target=_blank style='color:#2F92EE;'>#FBXW7#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=75, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7276, encryptionId=42bde27623, topicName=FBXW7)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3609256, createdName=zhu_jun9837, createdTime=Fri Nov 06 23:09:00 CST 2015, time=2015-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1291613, encodeId=ca3e1291613ec, content=<a href='/topic/show?id=137a831151a' target=_blank style='color:#2F92EE;'>#肿瘤转移#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=96, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=83115, encryptionId=137a831151a, topicName=肿瘤转移)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1be8234, createdName=sunyl07, createdTime=Wed Jan 07 01:09:00 CST 2015, time=2015-01-07, status=1, ipAttribution=)]

相关资讯

JCO:美国草药和补充剂治疗肿瘤的现状调查

替代医学是常规西医治疗以外的补充疗法,目前各国都十分重视其在医学领域中的作用,针灸和中医在西方医学被归入替代医学范畴,并占有较重要地位。研究显示,世界范围内33%~47%的肿瘤患者,在对症治疗同时,应用替代治疗或综合治疗(整合治疗)(integrative therapy),以减轻因疾病或治疗所引起的不适,例如化疗相关恶心呕吐(CINV)等。 2014年11月,美国《国家癌症研究所杂志专

Science:预测2015年重要突破,联合免疫疗法入选

联合疗法为癌症治疗带来了新希望 本报讯 科学是一个移动的标靶。在这个岁末,除了回顾这一年的成就,美国《科学》杂志的编辑们还“冒险”赌了一把在未来几个月可能会成为新闻的科学进展。 北极海冰 随着全球变暖,研究北极海冰萎缩对全球气候带来的深远影响变得越来越重要。由于辽阔的海洋能够从太阳那里吸收更多的热量,海冰的减少已知能够扩大该地区的受热面积。但是北极变暖对于低纬度地区的

直肠癌和肛门癌放疗研究进展

美国放射治疗及肿瘤学会(ASTRO)于2014年9月14-16日在SanFrancisco召开。ASTRO年会为放疗学界的三大会议之一,其内容丰富度、参会人数位居各会之首,是放射治疗领域的顶级学术盛会。每年,中国医学科学院肿瘤医院放射治疗科遴选出色的学术论文、派遣优秀的专家、中青年医师团队赴会,展示中国放射治疗研究成果,让世界听到中国放疗医师的声音。本次大会,中国医学科学院肿瘤医院放

PNAS:蛋白RBM38和p53互作调控肿瘤发展

科学家早就知道p53蛋白会抑制肿瘤。然而,加州大学戴维斯分校研究人员最近的一项动物研究发现p53与另一种蛋白质RBM38之间有复杂关系,揭示身体如何校准p53蛋白水平。RBM38太多会降低p53水平,增加患癌症的风险。RBM38太少允许p53表达增加,从而导致早衰。这项研究结果发表在PNAS杂志上。 p53蛋白是必要的抑制肿瘤因子,加州大学戴维斯分校教授Xinbin Chen说:当RBM38

杨雷:用PET-CT给正常人筛查肿瘤,有必要吗?

今天去北京人民广播电台做节目,给大家分享了如何从生活、饮食习惯方面多加注意,从而达到预防癌症发生的目的。最后由于时间关系,好多听众提出的关于癌症筛查体检等方面的问题没有来得及回答,所以选择几个典型的问题,从自己理解的角度对问题加以解释,希望对大家有所帮助,不足之处,还请大家批评指正。 用PET-CT给正常人筛查肿瘤有无必要?首先看一下数据,2012年北京市户籍人口癌症发病率为313/10

一图读懂:肿瘤标记物

本文附件:关于此次会议的ppt

Baidu
map
Baidu
map
Baidu
map