Am J Pathol:神奇!这个蛋白质或可帮助清除堵塞动脉

2017-11-22 常路 环球医学

心脏动脉中斑块的积聚是衰老的一个不幸部分。但是,UNC的Jonathan Schisler博士领导的研究人员通过研究保持清晰动脉进入老年的人群的基因组成,发现了冠状动脉疾病(CAD)一个可能的遗传基础,以及潜在预防CAD的新机遇。

心脏动脉中斑块的积聚是衰老的一个不幸部分。但是,UNC的Jonathan Schisler博士领导的研究人员通过研究保持清晰动脉进入老年的人群的基因组成,发现了冠状动脉疾病(CAD)一个可能的遗传基础,以及潜在预防CAD的新机遇。

根据发表在《American Journal of Pathology》的研究,在心脏动脉清晰度更高的老年人中蛋白质CXCL5水平更高。

UNC McAllister心脏研究所成员、药理学助理教授Schisler表示,CXCL5看起来对CAD有保护作用,而且CXCL5水平越高,冠状动脉就越健康。我们的研究结果表明,CAD可能有遗传基础,CXCL5可能对治疗这种疾病具有意义。

Schisler和他的同事对来自UNC医学中心的进行心血管筛查的超过65岁的143人的血液样本和心脏扫描进行分析。分析显示,与斑块较多的人相比,具有清晰动脉的人具有显著更高水平的CXCL5以及靠近CXCL5基因的遗传变异。

CAD是美国心脏病发作最常见的原因,也是导致死亡的主要原因。尽管人们对其风险因素和各种可获得的治疗选择有了更多的认识,但CAD仍然是一个长期的公共卫生挑战。

既往研究将CXCL5与炎症联系起来,导致一些研究人员认为该蛋白质是有害的。但最近在小鼠中的研究表明,该蛋白质可以通过改变存储在动脉中脂肪和胆固醇沉积物的组成来帮助限制斑块积聚。Schisler的研究发现提供了首个证据,CXCL5可以在人身上起到保护作用,至少在CAD情况下。

除了提供CAD如何进展的线索外,这项研究还为预防和治疗开辟了新的可能性。例如,开发一种模拟CXCL5作用的药物或增加机体的天然CXCL5产量来帮助高危人群预防CAD是可能的。这种蛋白质甚至可能被用来开发一种新的非手术方法来帮助清除堵塞的动脉。

Schisle表示,我们研究发现的另一个潜在应用是将CXCL5用作CAD的生物标志物。虽然我们的目标不是发现可能具有诊断或预后应用的生物标志物,但是这是可能的,值得探索。

该项研究也存在局限性,因为所有受试者被提及进行心脏扫描,研究人员没有纳入健康患者。需要进一步的研究来证实CXCL5在CAD中的作用并探索药物开发机会。

Schisler表示,虽然研究还处于初期阶段,但是导向CXCL5的目标给他和他的团队带来希望。

原始出处:

Saranya Ravi, Robert N. Schuck, Eleanor Hilliard, et.al. Clinical Evidence Supports a Protective Role for CXCL5 in Coronary Artery Disease. American Journal of Pathology

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    2018-01-05 docwu2019
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    2017-11-25 飘飘爱

    很好

    0

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  5. [GetPortalCommentsPageByObjectIdResponse(id=1786191, encodeId=934f1e8619171, content=<a href='/topic/show?id=569f13e9045' target=_blank style='color:#2F92EE;'>#Pathol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=13790, encryptionId=569f13e9045, topicName=Pathol)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Fri Jan 05 06:06:00 CST 2018, time=2018-01-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1765688, encodeId=b95c1e65688e6, content=<a href='/topic/show?id=252ae1803a3' target=_blank style='color:#2F92EE;'>#白质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71803, encryptionId=252ae1803a3, topicName=白质)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=778d36, createdName=柳叶一刀, createdTime=Mon Apr 09 19:06:00 CST 2018, time=2018-04-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=264242, encodeId=f1782642425b, content=很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=53, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib2emBzjO0FtqTJ05AqrEEdRmp6tmlsLXqpzfxWdtgbbgPGWRHagoK9fLTd3IayRPgkJVIVBWtdlmnkBhOIR4cFM/0, createdBy=e8d51649330, createdName=飘飘爱, createdTime=Sat Nov 25 18:58:21 CST 2017, time=2017-11-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1297014, encodeId=5bde129e0145c, content=<a href='/topic/show?id=158288e017c' target=_blank style='color:#2F92EE;'>#蛋白质#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=88701, encryptionId=158288e017c, topicName=蛋白质)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c689267, createdName=cmj8wellington, createdTime=Fri Nov 24 03:06:00 CST 2017, time=2017-11-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=263363, encodeId=4ba126336335, content=学习了.谢谢., beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/xkvRjYnJzzRJ2R0y7VhicibvkjPWHjIMmu4ZpKnE9cWAu4lVicS3uDUCfF4M4JWvrkrYfpb2KehPV0Ee29tPqyPEebBUibiaKhnvD/0, createdBy=f8412001184, createdName=惠映实验室, createdTime=Wed Nov 22 13:30:08 CST 2017, time=2017-11-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=263342, encodeId=96b92633428d, content=很好, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib2emBzjO0FtqTJ05AqrEEdRmp6tmlsLXqpzfxWdtgbbgPGWRHagoK9fLTd3IayRPgkJVIVBWtdlmnkBhOIR4cFM/0, createdBy=e8d51649330, createdName=飘飘爱, createdTime=Wed Nov 22 12:13:18 CST 2017, time=2017-11-22, status=1, ipAttribution=)]
    2017-11-22 惠映实验室

    学习了.谢谢.

    0

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    2017-11-22 飘飘爱

    很好

    0

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