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Science:小分子药物MYK-461可阻止和逆转肥厚性心肌病

2016-02-06 MedSci 生物谷

MyoKardia公司作为一家开创精准医疗治疗遗传性心血管疾病的生物制药公司2月4日宣布在Science期刊上发表了一篇论文,论文标题为“A Small-Molecule Inhibitor of Sarcomere Contractility Suppresses Hypertrophic Cardiomyopathy in Mice”。这篇论文证实作为该公司的候选先导药物(lead drug

MyoKardia公司作为一家开创精准医疗治疗遗传性心血管疾病的生物制药公司2月4日宣布在Science期刊上发表了一篇论文,论文标题为“A Small-Molecule Inhibitor of Sarcomere Contractility Suppresses Hypertrophic Cardiomyopathy in Mice”。这篇论文证实作为该公司的候选先导药物(lead drug candidate),MYK-461能够预防和逆转多种肥厚性心肌病(hypertrophic cardiomyopathy, HCM)模式基因突变小鼠的疾病发展。这项研究成果是MyoKardia公司、哈佛大学医学院、科罗拉多大学和斯坦福大学的合作结晶。这些数据进一步提供实验室和临床研究证据证实MYK-461有潜力作为一种重要的新方法治疗HCM。

MyoKardia公司首席医疗官Jonathan Fox博士说,“这些数据鼓舞人心,因为它们在生物化学、细胞和整体动物水平上展现出MYK-461有效地降低HCM基因突变后果。将这些发现从小鼠转移到人类,可能有巨大潜力改善患有这种破坏性疾病的病人的生命。”

为了研究肌节中的基因突变在HCM产生中的作用,MyoKardia公司使用之前培育出的HCM模式小鼠,这些小鼠表现出人HCM的关键性形态和功能特征。为了量化左心室肥大---HCM的主要特征---的程度,研究人员非侵入式地测量了左心室壁厚度(left ventricular wall thickness, LVWT)。

MyoKardia公司研究人员和他们的合作伙伴证实早期和长期服用MYK-461可阻止这种疾病的发展。相比于未接受治疗的基因突变小鼠中观察到的LVWT增加,在接受MYK-461治疗的基因突变小鼠中并未观察到LVWT增加。这项研究还证实一旦服用MYK-461,它能促进这种疾病的部分逆转,这点可从已产生心肌肥大的HCM模式小鼠中测量到的LVWT下降加以证明。再者,这项研究还发现MYK-461可阻止左室纤维化产生。左室纤维化是HCM的一种重要的组织病理学特征,其他具有潜在危险性的心脏病也涉及这一特征。

MyoKardia公司首席执行官Tassos Gianakakos说,“这些发现让我们备感鼓舞,它们支持我们的治疗假设:降低心肌收缩性能够阻止或逆转结构和功能上的异常,正是这些异常导致折磨着HCM病人的症状。我们认为在临床开发上,MYK-461是第一个获得这些效果的药物。这种方法可能代表着一个治疗遗传性心肌病的更为一般性的范例,可能让我们更接近于我们的最终目标,也就是改善患有这种衰竭性疾病的病人及其家属的生命。”

MyoKardia公司当前正在I期临床试验中评估MYK-461。这项临床试验旨在评估MYK-461的安全性和耐受性,并预计会提供它的药代动力学和药效动力学方面的数据。


原始出处:
Eric M. Green,et al..A small-molecule inhibitor of sarcomere contractility suppresses hypertrophic cardiomyopathy in mice. Science 05 Feb 2016: Vol. 351, Issue 6273, pp. 617-621 DOI: 10.1126/science.aad3456

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    2019-04-15 120a16aem27暂无昵称

    希望早日用上myk461

    0

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    2016-02-16 青争

    非常有用

    0

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    2016-02-16 青争

    已分享,热议

    0

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    2016-02-08 jichang
  6. [GetPortalCommentsPageByObjectIdResponse(id=364715, encodeId=2763364e1577, content=希望早日用上myk461, beContent=null, objectType=article, channel=null, level=null, likeNumber=97, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f5452195292, createdName=120a16aem27暂无昵称, createdTime=Mon Apr 15 23:21:54 CST 2019, time=2019-04-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1914619, encodeId=cf841914619de, content=<a href='/topic/show?id=84d7469559b' target=_blank style='color:#2F92EE;'>#小分子#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=46955, encryptionId=84d7469559b, topicName=小分子)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Sun Mar 27 10:27:00 CST 2016, time=2016-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=64437, encodeId=93a46443e47, content=非常有用, beContent=null, objectType=article, channel=null, level=null, likeNumber=141, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160216/IMG56C28FA0D251A3302.jpg, createdBy=1c9c1687290, createdName=青争, createdTime=Tue Feb 16 11:33:00 CST 2016, time=2016-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=64436, encodeId=5c456443640, content=已分享,热议, beContent=null, objectType=article, channel=null, level=null, likeNumber=130, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160216/IMG56C28FA0D251A3302.jpg, createdBy=1c9c1687290, createdName=青争, createdTime=Tue Feb 16 11:32:00 CST 2016, time=2016-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1375170, encodeId=638d13e51701b, content=<a href='/topic/show?id=2949159989d' target=_blank style='color:#2F92EE;'>#SCIE#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=15998, encryptionId=2949159989d, topicName=SCIE)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=17a3387, createdName=jichang, createdTime=Mon Feb 08 11:27:00 CST 2016, time=2016-02-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1622227, encodeId=fa1a162222e27, content=<a href='/topic/show?id=b9578094833' target=_blank style='color:#2F92EE;'>#肌病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=80948, encryptionId=b9578094833, topicName=肌病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=395f25, createdName=爆笑小医, createdTime=Mon Feb 08 11:27:00 CST 2016, time=2016-02-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=63619, encodeId=d8bf6361941, content=有用, beContent=null, objectType=article, channel=null, level=null, likeNumber=144, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=33591686340, createdName=1de48a27m96(暂无匿称), createdTime=Sun Feb 07 16:28:00 CST 2016, time=2016-02-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=63557, encodeId=f0cd6355eae, content=沉默基因, beContent=null, objectType=article, channel=null, level=null, likeNumber=133, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTK29w9r0upRgxUXHNhe7bd3VxHnhBSpibMbKOjtX92zXr78SkuZfUNuADrjHiaw6uibZaEYjh9cJLzew/132, createdBy=261e1682638, createdName=1de3b290m83(暂无匿称), createdTime=Sun Feb 07 08:59:00 CST 2016, time=2016-02-07, status=1, ipAttribution=)]
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    2016-02-07 1de48a27m96(暂无匿称)

    有用

    0

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    2016-02-07 1de3b290m83(暂无匿称)

    沉默基因

    0

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