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Circ Card Genet:2型糖尿病和CVD共有的分子通路

2014-11-06 王英 生物通

2型糖尿病(T2D)和心血管疾病(CVD)似乎有很多共同点。它们都有诸如肥胖这样的危险因素,它们往往同时出现。如果它们也有相同的遗传基础,那么医生就能设计一种方法来共同治疗它们。怀着这个希望,科学家们对超过15,000名女性的基因组学,进行了多重分析。在一项最新研究中,他们发现,这两种疾病共有8种分子通路,以及几个“关键驱动”基因,这些基因似乎协调这些通路连接和互动的基因网络。 首先,科

2型糖尿病(T2D)和心血管疾病(CVD)似乎有很多共同点。它们都有诸如肥胖这样的危险因素,它们往往同时出现。如果它们也有相同的遗传基础,那么医生就能设计一种方法来共同治疗它们。怀着这个希望,科学家们对超过15,000名女性的基因组学,进行了多重分析。在一项最新研究中,他们发现,这两种疾病共有8种分子通路,以及几个“关键驱动”基因,这些基因似乎协调这些通路连接和互动的基因网络。

首先,科学家们利用全基因组关联分析(GWAS),寻找三个不同民族女性中的单个遗传学差异,与相似但健康的女性相比,这些女性要么患有其中一种疾病,要么同时患有这两种疾病。但是研究小组成员并非仅限于此。他们还分析了这些女性在复杂通路中的遗传学差异,在这些通路中,基因和它们的蛋白质产物相互作用,影响生理和健康。

相关研究结果发表在2014年11月4日的美国心脏协会杂志 Circulation: Cardiovascular Genetics(2014年最新影响因子5.337),本文共同资深作者、布朗大学公共卫生学院流行病学和医学教授Simin Liu指出:“一个接一个地研究基因是标准的。但是最终,生物学的相互作用,会以一种通路和网络的方式,从根本上被组织起来。”

这项研究利用妇女健康倡议(Women's Health Initiative,由美国国家心脏、肺和血液研究所资助)提供的8,155名黑人女性、3,494名西班牙裔女性和3,697名白人女性的遗传学样本和健康记录。在将CND和T2D女性与健康女性进行对比分析时,本文第一作者、人口健康和临床流行病学研究中心博士后研究人员Kei Hang K. Chan及研究小组发现,调节细胞粘附(细胞如何粘附在组织内)、钙信号(细胞如何沟通)、轴突导向(神经元如何找到与靶位点连接的途径)、细胞外基质(组织内的结构支持)和各种形式心肌症(心脏肌肉问题)的8种通路,存在关键的差异。

这些都是种族间普遍存在的。此外,研究小组发现,一些通路在T2D和CVD之间是种族特异性的。

Chan利用5种不同的方法,来对这些通路进行分析,只报道那些通过至少两种方法表现为重要显著性的通路。

从那里,通过对基因及其通路进行网络分析,进一步确定了可能是疾病“关键驱动因子”的基因。本文列出了它们中的“前十名”。

作者写道:“这些关键的驱动基因代表着关键的网络基因,当这些基因被扰乱时,可能潜在地影响参与CVD和T2D途径的大量基因,从而对疾病产生更强的影响。”

潜在的治疗靶点

为了评估这些基因是否可以作为关键的驱动因子,研究小组查阅了研究人员编写的有关“这些基因在健康小鼠模型中的重要性”的多个数据库。

在这篇论文中,依据它们与疾病如何合理相关,研究人员讨论了所涉及的通路。例如,轴突导向,众所周知参与发育中的胎儿如何建立神经系统,也涉及到维持胰腺中β细胞的机制发生,这是糖尿病的核心所在。这一通路如果发生分解,可以使细胞更容易受到攻击,影响糖的加工过程。

Liu说,随着这些通路和关键驱动基因的发现,现在有充分的机会来进行后续研究,从而使我们对于“这些通路在血管健康预后中的作用”,有更深入的理解,并设计和检验可能修复它们的治疗方法。

研究人员写道:“利用一种系统生物学框架,将人类和小鼠种群的GWAS、通路、基因表达、网络和表型信息进行整合,我们就能够深入了解内在的作用机制,并确定潜在的治疗靶点。”

原始出处:

Chan KH1, Huang YT2, Meng Q3, Wu C4, Reiner A5, Sobel EM6, Tinker L7, Lusis AJ8, Yang X3, Liu S9.Shared Molecular Pathways and Gene Networks for Cardiovascular Disease and Type 2 Diabetes in Women across Diverse Ethnicities.Circ Cardiovasc Genet. 2014 Nov 4. pii: CIRCGENETICS.114.000676. [Epub ahead of print]

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  2. [GetPortalCommentsPageByObjectIdResponse(id=1685974, encodeId=971f16859e4c9, content=<a href='/topic/show?id=66f3e93862' target=_blank style='color:#2F92EE;'>#Genet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7938, encryptionId=66f3e93862, topicName=Genet)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d3e128296421, createdName=江川靖瑶, createdTime=Tue Jun 23 19:23:00 CST 2015, time=2015-06-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26327, encodeId=63732632e3a, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=136, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 14:08:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1733721, encodeId=e9061e3372171, content=<a href='/topic/show?id=d4f412668a4' target=_blank style='color:#2F92EE;'>#NET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12668, encryptionId=d4f412668a4, topicName=NET)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7ea033781210, createdName=canlab, createdTime=Fri Nov 07 13:23:00 CST 2014, time=2014-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=20499, encodeId=86702049924, content=控制好糖尿病可能提高肝硬化患者的预后。, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Sat Apr 11 23:02:00 CST 2015, time=2015-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2048629, encodeId=3af1204862919, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Thu Dec 11 13:23:00 CST 2014, time=2014-12-11, status=1, ipAttribution=)]
    2015-06-08 ljjj1053

    好好学习学习

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1685974, encodeId=971f16859e4c9, content=<a href='/topic/show?id=66f3e93862' target=_blank style='color:#2F92EE;'>#Genet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7938, encryptionId=66f3e93862, topicName=Genet)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d3e128296421, createdName=江川靖瑶, createdTime=Tue Jun 23 19:23:00 CST 2015, time=2015-06-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26327, encodeId=63732632e3a, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=136, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 14:08:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1733721, encodeId=e9061e3372171, content=<a href='/topic/show?id=d4f412668a4' target=_blank style='color:#2F92EE;'>#NET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12668, encryptionId=d4f412668a4, topicName=NET)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7ea033781210, createdName=canlab, createdTime=Fri Nov 07 13:23:00 CST 2014, time=2014-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=20499, encodeId=86702049924, content=控制好糖尿病可能提高肝硬化患者的预后。, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Sat Apr 11 23:02:00 CST 2015, time=2015-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2048629, encodeId=3af1204862919, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Thu Dec 11 13:23:00 CST 2014, time=2014-12-11, status=1, ipAttribution=)]
    2014-11-07 canlab
  4. [GetPortalCommentsPageByObjectIdResponse(id=1685974, encodeId=971f16859e4c9, content=<a href='/topic/show?id=66f3e93862' target=_blank style='color:#2F92EE;'>#Genet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7938, encryptionId=66f3e93862, topicName=Genet)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d3e128296421, createdName=江川靖瑶, createdTime=Tue Jun 23 19:23:00 CST 2015, time=2015-06-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26327, encodeId=63732632e3a, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=136, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 14:08:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1733721, encodeId=e9061e3372171, content=<a href='/topic/show?id=d4f412668a4' target=_blank style='color:#2F92EE;'>#NET#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12668, encryptionId=d4f412668a4, topicName=NET)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7ea033781210, createdName=canlab, createdTime=Fri Nov 07 13:23:00 CST 2014, time=2014-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=20499, encodeId=86702049924, content=控制好糖尿病可能提高肝硬化患者的预后。, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Sat Apr 11 23:02:00 CST 2015, time=2015-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2048629, encodeId=3af1204862919, content=<a href='/topic/show?id=4363e929ad' target=_blank style='color:#2F92EE;'>#Gene#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7929, encryptionId=4363e929ad, topicName=Gene)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63a4277, createdName=cy0324, createdTime=Thu Dec 11 13:23:00 CST 2014, time=2014-12-11, status=1, ipAttribution=)]
    2015-04-11 x35042875

    控制好糖尿病可能提高肝硬化患者的预后。

    0

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    2014-12-11 cy0324

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