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小剂量阿司匹林为何能降低癌症的发生风险?

2016-12-26 MedSci MedSci原创

世界范围内癌症是造成死亡的首要病因,据估计未来几年癌症的发病率仍会上升。癌症的预防策略包括选择健康的生活方式,癌症高风险人群定期进行筛查等。近日,来自俄勒冈健康与科学大学(OHSU)与俄勒冈州立大学(OSU)的一项新的研究表明,小剂量阿司匹林有助于防止癌细胞的形成,并解释了这背后的机制,该研究结果已发表于AJP-Cell Physiology。研究显示,除了凝血外,血小板还可增加机体某些蛋白的水平

世界范围内癌症是造成死亡的首要病因,据估计未来几年癌症的发病率仍会上升。癌症的预防策略包括选择健康的生活方式,癌症高风险人群定期进行筛查等。

近日,来自俄勒冈健康与科学大学(OHSU)与俄勒冈州立大学(OSU)的一项新的研究表明,小剂量阿司匹林有助于防止癌细胞的形成,并解释了这背后的机制,该研究结果已发表于AJP-Cell Physiology。

研究显示,除了凝血外,血小板还可增加机体某些蛋白的水平,而这些蛋白可支持癌细胞的营养,并可帮助癌细胞扩散,这种“癌蛋白”称之为c-MYC。

c-MYC的生物学功能是调节机体15%以上的基因的表达。c-MYC调节器控制细胞的生死周期,蛋白质的合成和细胞代谢。

然而,既往研究已经表明,在癌症患者中,该癌基因过度表达。

对此研究人员解释道,阿司匹林可以降低血小板从而提高c-MYC癌蛋白的水平。

该研究首次表明血小板具有调节肿瘤细胞中c-MYC表达的能力。

研究人员指出,约三分之一的结肠癌患者和42%的胰腺癌患者存在c-MYC癌蛋白的过度表达。

此外,他们还指出,阿司匹林对血小板的影响与其剂量无关。因此,临床医生可以权衡服用阿司匹林的风险和益处,以及减少出血的风险。

最后作者强调,考虑使用阿司匹林时即使是低剂量也应遵从医生和医疗保健专业人员的意见。

原始出处:

[1] Ana Sandoiu. New study explains how low-dose aspirin may prevent cancer. MNT, 24 December 2016.

[2] Owen J.T. McCarty et al., Aspirin therapy reduces the ability of platelets to promote colon and pancreatic cancer cell proliferation: implications for the oncoprotein c-MYC, AJP-Cell Physiology, 30 November 2016.


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    2017-01-25 pyaili
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    2016-12-27 ylzr123

    阿司匹林对血小板的影响与其剂量无关。临床医生可以权衡服用阿司匹林的风险和益处,以及减少出血的风险。

    0

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    2016-12-27 ys2323

    学习了,阿司匹林的用处真多!

    0

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    2016-12-27 顾小北大魔王

    小剂量阿司匹林有助于防止癌细胞的形成

    0

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    2016-12-26 知难而进

    学习了,,,,,,

    0

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    2016-12-26 zac posen

    好的吗你们的

    0

  8. [GetPortalCommentsPageByObjectIdResponse(id=1971232, encodeId=80d219e12323e, content=<a href='/topic/show?id=1104469e552' target=_blank style='color:#2F92EE;'>#小剂量阿司匹林#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46975, encryptionId=1104469e552, topicName=小剂量阿司匹林)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=0ee7414, createdName=lanyan20020086, createdTime=Fri Jul 14 06:09:00 CST 2017, time=2017-07-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2043595, encodeId=db86204359502, content=<a href='/topic/show?id=a9c2469e327' target=_blank style='color:#2F92EE;'>#小剂量#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46973, encryptionId=a9c2469e327, topicName=小剂量)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8b3e473, createdName=pyaili, createdTime=Wed Jan 25 14:09:00 CST 2017, time=2017-01-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=166030, encodeId=041c16603028, content=阿司匹林对血小板的影响与其剂量无关。临床医生可以权衡服用阿司匹林的风险和益处,以及减少出血的风险。, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Tue Dec 27 10:15:57 CST 2016, time=2016-12-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=165960, encodeId=cbcc165960db, content=学习了,阿司匹林的用处真多!, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160616/IMG5762A3665DC7B3997.jpg, createdBy=df0a1649089, createdName=ys2323, createdTime=Tue Dec 27 07:27:22 CST 2016, time=2016-12-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=165917, encodeId=84ae16591e2f, content=小剂量阿司匹林有助于防止癌细胞的形成, beContent=null, objectType=article, channel=null, level=null, likeNumber=86, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a3e1928208, createdName=顾小北大魔王, createdTime=Tue Dec 27 00:02:07 CST 2016, time=2016-12-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=165885, encodeId=92ae165885e9, content=学习了,,,,,,, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160811/IMG57AC91915ACA64463.jpg, createdBy=9c351934462, createdName=知难而进, createdTime=Mon Dec 26 23:01:21 CST 2016, time=2016-12-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=165876, encodeId=ab131658e6d5, content=好的吗你们的, beContent=null, objectType=article, channel=null, level=null, likeNumber=82, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=44751723931, createdName=zac posen, createdTime=Mon Dec 26 21:57:01 CST 2016, time=2016-12-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=165873, encodeId=e9e31658e324, content=看了不少报道都支持这个, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7cJ6ejWUr2nIia8qOvAKNdLHr32Df6G8iaoaOx6pHaoiacwp26DaslxZHCGbibZhhCGven4rvmWP60GahtzgFjgCjR/0, createdBy=6b111703011, createdName=有备才能无患, createdTime=Mon Dec 26 21:41:36 CST 2016, time=2016-12-26, status=1, ipAttribution=)]
    2016-12-26 有备才能无患

    看了不少报道都支持这个

    0

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