Molecular Psychiatry:发现阿尔兹海默症候选药物的作用机理

2017-02-04 生物谷 生物谷

Tau是大脑中一个涉及阿尔兹海默症和其他脑部疾病的重要蛋白。研究发现Tau聚集形成的神经纤维缠结和神经细胞死亡及认知能力下降有关。一项由特拉维夫大学(TAU)完成的最近发表在《Molecular Psychiatry》上的重要研究揭示了一种候选药物NAP阻断这些神经纤维缠结形成的机制,它可以促进Tau和微管的相互作用,而微管扮演火车轨道的角色

Tau是大脑中一个涉及阿尔兹海默症和其他脑部疾病的重要蛋白。研究发现Tau聚集形成的神经纤维缠结和神经细胞死亡及认知能力下降有关。一项由特拉维夫大学(TAU)完成的最近发表在《Molecular Psychiatry》上的重要研究揭示了一种候选药物NAP阻断这些神经纤维缠结形成的机制,它可以促进Tau和微管的相互作用,而微管扮演火车轨道的角色,负责运输神经元中生物学物质。

“异常的Tau蛋白形成缠结,导致了阿尔兹海默症的进展。”研究领导者Illana Gozes教授说道,“我们首次发现候选药物NAP可以促进神经细胞中微管的运动,NAP是一个活性依赖性神经保护蛋白(ADNP)片段,可以在分子水平促进Tau-微管相互作用,以此阻碍Tau形成缠结,防止阿尔兹海默症及其他相关疾病发生。”Gozes教授现就职于TAU亚当斯超级大脑研究中心及Sagol神经科学学院。

Gozes教授主要发现了ADNP——一个在阿尔兹海默症中失调的基因。妊娠期间胎儿发生ADNP突变是自闭症伴随智力残疾的主要诱因之一。“ADNP和DAP通过稳定微管发挥作用。”Gozes教授说道,“微管可以运输生物学物质,但是阿尔兹海默症病人神经细胞中的这些微管被破坏,自闭症患者神经细胞中这些微管则功能紊乱。而NAP可以保护这些微管,因此可以保护细胞。”

“我们现在发现ADNP具有很强的促进Tau结合微管的能力,从而保护Tau免受破坏。我们还进一步发现ADNP的活性主要依赖于NAP片段,这个片段正在进一步往临床使用发展。”Gozes教授说道,“了解NAP工作的精确原理将使NAP更容易进入临床。此外,了解精确机理还有助于发现治疗自闭症、阿尔兹海默症等神经疾病的药物新靶点。”

原始出处:

Y Ivashko-Pachima, C Laura Sayas, A Malishkevich, I Gozes. ADNP/NAP dramatically increase microtubule end-binding protein–Tau interaction: a novel avenue for protection against tauopathy. Molecular Psychiatry, 24 January 2017.

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    2017-02-07 wei834766788

    看看学习了!!!

    0

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    2017-02-06 wangyunyb

    这个蛋白是药物?

    0

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    2017-02-06 李东泽

    很好,不错,以后会多学习

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2052399, encodeId=8398205239917, content=<a href='/topic/show?id=688a2e469f0' target=_blank style='color:#2F92EE;'>#候选药物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27469, encryptionId=688a2e469f0, topicName=候选药物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=467c360, createdName=yuanming7, createdTime=Fri Dec 08 19:14:00 CST 2017, time=2017-12-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1792024, encodeId=76681e9202415, content=<a href='/topic/show?id=696a14818df' target=_blank style='color:#2F92EE;'>#Psychiatry#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=25, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14818, encryptionId=696a14818df, topicName=Psychiatry)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c192448, createdName=diushouji, createdTime=Fri Sep 01 02:14:00 CST 2017, time=2017-09-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=174768, encodeId=6d141e47686e, content=看看学习了!!!, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=078f1661649, createdName=wei834766788, createdTime=Tue Feb 07 16:39:42 CST 2017, time=2017-02-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=174605, encodeId=83bf1e46053a, content=这个蛋白是药物?, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20170206/IMG589879E392F941842.jpg, createdBy=f4d469996, createdName=wangyunyb, createdTime=Mon Feb 06 21:12:43 CST 2017, time=2017-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=174540, encodeId=b39a1e45401d, content=很好,不错,以后会多学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Feb 06 12:11:14 CST 2017, time=2017-02-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1402709, encodeId=c1501402e0922, content=<a href='/topic/show?id=60ca9e761ce' target=_blank style='color:#2F92EE;'>#阿尔兹海默#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=19, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=97761, encryptionId=60ca9e761ce, topicName=阿尔兹海默)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=be952422716, createdName=habb, createdTime=Mon Feb 06 03:14:00 CST 2017, time=2017-02-06, status=1, ipAttribution=)]

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