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Nat Commun:治疗癌症新思路:移除对肿瘤血管形成关键的蛋白

2015-07-03 佚名 生物谷

近日,来自利兹大学等处的科学家通过研究发现,一种特殊蛋白或可诱发乳腺癌中肿瘤血管的生长,从而促进乳腺癌扩散到大脑中,而乳腺癌向大脑中扩散是其最常见的一种扩散手段,相关研究发表于Nature Communications上。研究者Georgia Mavria表示,通过抑制小鼠模型中DOCK4蛋白,肿瘤血管中的特殊部分就不能够快速形成,从而就会降低肿瘤的生长速度,我们想通过研究阐明肿瘤形成和生长的机制

近日,来自利兹大学等处的科学家通过研究发现,一种特殊蛋白或可诱发乳腺癌中肿瘤血管的生长,从而促进乳腺癌扩散到大脑中,而乳腺癌向大脑中扩散是其最常见的一种扩散手段,相关研究发表于Nature Communications上。

研究者Georgia Mavria表示,通过抑制小鼠模型中DOCK4蛋白,肿瘤血管中的特殊部分就不能够快速形成,从而就会降低肿瘤的生长速度,我们想通过研究阐明肿瘤形成和生长的机制,而本文研究为我们阐明了一种重要的指示器,来帮助阐明该蛋白如何影响大脑中次级乳腺肿瘤的生长,为后期开发新型疗法来抑制乳腺癌向大脑中扩散提供了新的研究思路。

研究者表示,两种蛋白DOCK4和DOCK0的复合体对于血管内腔的形成非常重要,而抑制血管内腔的形成则可有效抑制肿瘤的发展;正常情况下,当乳腺癌扩散到机体其它部位时,其都会驱动新的血管来补给肿瘤,从而导致肿瘤快速发展而难以治疗。而这项研究中研究者揭示了肿瘤血管形成的复杂过程如何被有效控制,如果研究者可以找到一种新型策略来降低向肿瘤的血液供给,那么或可有效抑制癌症的发展和扩散。

每年在英国都有1.2万女性因为乳腺癌而被夺去生命,而在分子水平上来理解乳腺癌的发展对于有效抑制乳腺癌次级肿瘤的形成非常关键;肿瘤需要血管来生长,然而这些血管往往也是癌症的致命弱点,因为其对于许多抗癌药物并不耐受,而靶向作用肿瘤血管的药物可有效抑制肿瘤的血液供给,从而抑制癌症的扩散。

本文研究首次发现名为DOCK4的分子在肿瘤血管的形成过程中扮演着重要角色,通过阻断该分子的功能或可有效抑制肿瘤的生长,但当前研究仅是在小鼠机体中进行的,后期还需要大量研究来检测是否靶向作用DOCK4分子的药物可以有效安全地治疗癌症患者。

原始出处:

Sabu Abraham, Margherita Scarcia, Richard D. Bagshaw,et al.A Rac/Cdc42 exchange factor complex promotes formation of lateral filopodia and blood vessel lumen morphogenesis.Nature Communications.July 1,2015.Article number: 7286 doi:10.1038/ncomms8286

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    2016-04-27 liye789132251
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    2015-08-13 晓辰
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    2016-03-25 liuli5079
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    2015-07-04 huaxipanxing

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  6. [GetPortalCommentsPageByObjectIdResponse(id=1880716, encodeId=d6231880e166e, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Apr 27 05:38:00 CST 2016, time=2016-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2019290, encodeId=aa1f2019290c9, content=<a href='/topic/show?id=61f458359f7' target=_blank style='color:#2F92EE;'>#新思路#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=58359, encryptionId=61f458359f7, topicName=新思路)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=a5712500001, createdName=晓辰, createdTime=Thu Aug 13 07:38:00 CST 2015, time=2015-08-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2086803, encodeId=47e12086803f9, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Fri Mar 25 07:38:00 CST 2016, time=2016-03-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2040912, encodeId=e58620409129c, content=<a href='/topic/show?id=9c688309eeb' target=_blank style='color:#2F92EE;'>#肿瘤血管#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=83097, encryptionId=9c688309eeb, topicName=肿瘤血管)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e4137, createdName=meichuangyi, createdTime=Tue Apr 19 02:38:00 CST 2016, time=2016-04-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=30478, encodeId=0f28304e8b5, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=131, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sat Jul 04 14:45:00 CST 2015, time=2015-07-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=30333, encodeId=269f3033350, content=这还是动物研究,到人体上不知道该怎么应用,肿瘤的治疗始终是个难题,我们发现了很多靶点,但是真正能够在临床使用的,却少之又少。, beContent=null, objectType=article, channel=null, level=null, likeNumber=128, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c4a5105539, createdName=lovetcm, createdTime=Fri Jul 03 22:07:00 CST 2015, time=2015-07-03, status=1, ipAttribution=)]
    2015-07-03 lovetcm

    这还是动物研究,到人体上不知道该怎么应用,肿瘤的治疗始终是个难题,我们发现了很多靶点,但是真正能够在临床使用的,却少之又少。

    0

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