Nature:靠吃药就能不饿?科学家们向前迈进重要一步

2018-05-01 Chen 生物探索

最新发表在Nature杂志上的一项研究中,一个国际科学家小组在对抗肥胖研究方向上取得突破进展,首次描述了一种复杂的、被激活后能够抑制饥饿的受体的关键结构信息,为治疗肥胖、糖尿病等疾病的药物研发提供了重要的依据。

最新发表在Nature杂志上的一项研究中,一个国际科学家小组在对抗肥胖研究方向上取得突破进展,首次描述了一种复杂的、被激活后能够抑制饥饿的受体的关键结构信息,为治疗肥胖、糖尿病等疾病的药物研发提供了重要的依据。

中国科学院上海药物研究所吴蓓丽研究员、德国莱比锡大学Annette G. Beck-Sickinger教授以及德国雷根斯堡大学Max Keller博士是这篇题为“Structural basis of ligand binding modes at the neuropeptide Y Y1 receptor”的论文的共同通讯作者。

作者们表示,制药公司长期以来一直在尝试开发能够抑制饥饿的小分子药物,然而,先前一直没有人确切地知道相关受体(也就是药物的靶点)是什么样的,这就使得开发调节这些受体的药物变得非常困难。

神经肽Y是最重要的神经肽类物质之一,在细胞内通过与其受体结合,发挥调节食物摄取、能量平衡等重要功能。在这项研究中,科学家们将目光锁定在了“神经肽Y受体”上(在人体内,神经肽Y受体包括Y1R、Y2R、Y4R和Y5R四种亚型,神经肽Y主要通过激活Y1R刺激食欲),并确定了神经肽Y受体Y1R的首个晶体结构,破译了数以千计组成该受体的碳、氧、氮和其他原子以及它们是如何相互结合的。


Jens Meiler's team determined the first crystal structure for a neuropeptide Y receptor, deciphering the thousands of carbon, oxygen, nitrogen and other atoms involved with it and how they bind to one another. Credit: Brian Bender/Vanderbilt University

参与该研究的Jens Meiler教授说:“这是药物发现过程中一个非常重要的里程牌。这篇论文的最大贡献是弄清了组成Y1R的所有原子的空间位置以及各原子之间的结合方式。在不清楚Y1R结构前设计靶向它的药物,就好比在不知道钥匙孔形状的情况下来设计钥匙。而现在,我们已经清楚的知道,该受体的结构中存在一些能够让小分子药物结合的‘小口袋’。”

先前已有研究表明,当Y1R这一受体的功能被阻断后,小鼠会变得肥胖。接下来,科学家们要做的就是靶点验证:证明该受体确实能够控制饥饿。

“正常情况下,一旦你吃了东西,机体就会产生神经肽Y来激活Y1R,然后,你就会不再感到饥饿,从而停止进食。我们的想法是,通过小分子药物直接上调Y1R的活性(也就是不靠吃东西,而用药物激活Y1R),从而产生不饿的感觉,达到少吃的目的。”Meiler教授解释道。

原始出处:Yang Z, Han S, Keller M, et al. Structural basis of ligand binding modes at the neuropeptide Y Y1 receptor. Nature. 2018 Apr;556(7702):520-524.

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  1. [GetPortalCommentsPageByObjectIdResponse(id=1882999, encodeId=5a4d1882999f2, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Mar 27 11:44:00 CST 2019, time=2019-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311335, encodeId=5565311335d9, content=人能够控制自己的食欲吗?, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib06iaV3D9Tg5K7ia9ce6iarjDfYk55EXYTvyA4DUzexKJe5AicVCb5IwibD6l5Cib2mOkhia3BfcpU3NZdDeHlB0vKEFPL/0, createdBy=e0f21949625, createdName=lifestyle, createdTime=Wed May 02 16:04:08 CST 2018, time=2018-05-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311260, encodeId=97dd31126004, content=这种方法不对, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTKibA62IFMeUJEmSyIe8DvYFeERuOsfrRd8iano7nENqQU1dRR3tqeQOUL3eqgYgEZRT2t2iaEsib0JEw/132, createdBy=66771693911, createdName=易水河, createdTime=Wed May 02 09:11:53 CST 2018, time=2018-05-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311098, encodeId=28c031109872, content=学习了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0ad01994393, createdName=溜溜梅不酸, createdTime=Wed May 02 00:04:50 CST 2018, time=2018-05-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311013, encodeId=d07d3110135a, content=学习., beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDcVAydhtcpjiaxLrZD7Eb5YnKPgf7ypGpfyl7FflFyAenvQLbib6T0LPXIhXo9SPNPXYYFFJbEgykztwJ0HQ61I3F9GxIVKWsgQ/0, createdBy=f38d2052407, createdName=周周人, createdTime=Tue May 01 18:12:11 CST 2018, time=2018-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311002, encodeId=69ac311002f1, content=药食同源.互补益处大., beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Tue May 01 16:58:46 CST 2018, time=2018-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=310973, encodeId=e29b3109e32d, content=学习了.长知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Tue May 01 11:36:38 CST 2018, time=2018-05-01, status=1, ipAttribution=)]
    2019-03-27 liye789132251
  2. [GetPortalCommentsPageByObjectIdResponse(id=1882999, encodeId=5a4d1882999f2, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Mar 27 11:44:00 CST 2019, time=2019-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311335, encodeId=5565311335d9, content=人能够控制自己的食欲吗?, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib06iaV3D9Tg5K7ia9ce6iarjDfYk55EXYTvyA4DUzexKJe5AicVCb5IwibD6l5Cib2mOkhia3BfcpU3NZdDeHlB0vKEFPL/0, createdBy=e0f21949625, createdName=lifestyle, createdTime=Wed May 02 16:04:08 CST 2018, time=2018-05-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311260, encodeId=97dd31126004, content=这种方法不对, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTKibA62IFMeUJEmSyIe8DvYFeERuOsfrRd8iano7nENqQU1dRR3tqeQOUL3eqgYgEZRT2t2iaEsib0JEw/132, createdBy=66771693911, createdName=易水河, createdTime=Wed May 02 09:11:53 CST 2018, time=2018-05-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311098, encodeId=28c031109872, content=学习了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0ad01994393, createdName=溜溜梅不酸, createdTime=Wed May 02 00:04:50 CST 2018, time=2018-05-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311013, encodeId=d07d3110135a, content=学习., beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDcVAydhtcpjiaxLrZD7Eb5YnKPgf7ypGpfyl7FflFyAenvQLbib6T0LPXIhXo9SPNPXYYFFJbEgykztwJ0HQ61I3F9GxIVKWsgQ/0, createdBy=f38d2052407, createdName=周周人, createdTime=Tue May 01 18:12:11 CST 2018, time=2018-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311002, encodeId=69ac311002f1, content=药食同源.互补益处大., beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Tue May 01 16:58:46 CST 2018, time=2018-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=310973, encodeId=e29b3109e32d, content=学习了.长知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Tue May 01 11:36:38 CST 2018, time=2018-05-01, status=1, ipAttribution=)]
    2018-05-02 lifestyle

    人能够控制自己的食欲吗?

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1882999, encodeId=5a4d1882999f2, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=22, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Wed Mar 27 11:44:00 CST 2019, time=2019-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311335, encodeId=5565311335d9, content=人能够控制自己的食欲吗?, beContent=null, objectType=article, channel=null, level=null, likeNumber=68, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib06iaV3D9Tg5K7ia9ce6iarjDfYk55EXYTvyA4DUzexKJe5AicVCb5IwibD6l5Cib2mOkhia3BfcpU3NZdDeHlB0vKEFPL/0, createdBy=e0f21949625, createdName=lifestyle, createdTime=Wed May 02 16:04:08 CST 2018, time=2018-05-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311260, encodeId=97dd31126004, content=这种方法不对, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTKibA62IFMeUJEmSyIe8DvYFeERuOsfrRd8iano7nENqQU1dRR3tqeQOUL3eqgYgEZRT2t2iaEsib0JEw/132, createdBy=66771693911, createdName=易水河, createdTime=Wed May 02 09:11:53 CST 2018, time=2018-05-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311098, encodeId=28c031109872, content=学习了谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0ad01994393, createdName=溜溜梅不酸, createdTime=Wed May 02 00:04:50 CST 2018, time=2018-05-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311013, encodeId=d07d3110135a, content=学习., beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/ajNVdqHZLLDcVAydhtcpjiaxLrZD7Eb5YnKPgf7ypGpfyl7FflFyAenvQLbib6T0LPXIhXo9SPNPXYYFFJbEgykztwJ0HQ61I3F9GxIVKWsgQ/0, createdBy=f38d2052407, createdName=周周人, createdTime=Tue May 01 18:12:11 CST 2018, time=2018-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=311002, encodeId=69ac311002f1, content=药食同源.互补益处大., beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=60791943465, createdName=1e0f8808m18(暂无匿称), createdTime=Tue May 01 16:58:46 CST 2018, time=2018-05-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=310973, encodeId=e29b3109e32d, content=学习了.长知识, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220115/46bcf39c32de4aa6b45c5f9d66c8ee77/6cb4a20c55bb4b7691122f47747bfca2.jpg, createdBy=9dad1662329, createdName=1ddf0692m34(暂无匿称), createdTime=Tue May 01 11:36:38 CST 2018, time=2018-05-01, status=1, ipAttribution=)]
    2018-05-02 易水河

    这种方法不对

    0

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    2018-05-02 溜溜梅不酸

    学习了谢谢分享

    0

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    2018-05-01 周周人

    学习.

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    2018-05-01 1e0f8808m18(暂无匿称)

    药食同源.互补益处大.

    0

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    2018-05-01 1ddf0692m34(暂无匿称)

    学习了.长知识

    0

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