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Nat Commun:自噬紊乱易引发肠道疾病

2017-11-05 Flora 生物探索

11月2日,最新一篇发表在《Nature Communications》期刊的文章将炎症与一种基本的生物学过程——自噬关联起来,并构建了一种新关系,用于防治包括结肠癌、克罗恩病、溃疡性结肠炎在内的肠道疾病。

11月2日,最新一篇发表在《Nature Communications》期刊的文章将炎症与一种基本的生物学过程——自噬关联起来,并构建了一种新关系,用于防治包括结肠癌克罗恩病溃疡性结肠炎在内的肠道疾病。

自噬,是一种“自己吃自己”过程,是细胞维持物质周转的重要机制。当细胞内出现衰老的蛋白质、损坏的细胞器等废弃物时,自噬囊泡会将它们包裹并送至溶酶体中进行降解并得以循环利用,从而确保细胞自身的代谢需要和某些细胞器的更新。

近期,来自于华威大学生命科学学院的Ioannis P. Nezis教授带领团队发现:当自噬功能紊乱时,会引发炎症,从而增加肠道疾病的发生风险。他们以果蝇为模型,发现了一个调控自噬的关键蛋白——Kenny。这一蛋白质含有一个motif,是启动蛋白“自噬分解”的关键元件。当自噬功能失调时,Kenny会聚集并引发炎症。

研究人员将Kenny标记上荧光,以便在显微镜下观察到自噬过程。结果发现,自噬失调会导致果蝇发生严重的炎症,特别是在肠道内,从而引发疾病,最终导致其寿命缩短一半!

对于人类而言,由自噬、炎症引发的肠道疾病和功能失调更为危险,因为我们体内的Kenny蛋白缺乏调控用的motif。

研究团队认为,理解这一关联,能够为肠道疾病找到更好的预防和治疗策略——调控细胞自噬平衡。他们建议,石榴、葡萄、梨、蘑菇、扁豆等食物中都含有激活自噬过程的天然化合物,有助于预防炎症和肠道疾病。


原始出处:
Tusco R, Jacomin AC, Jain A,et al.Kenny mediates selective autophagic degradation of the IKK complex to control innate immune responses.Nat Commun. 2017 Nov 2;8(1):1264. doi: 10.1038/s41467-017-01287-9.

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    2018-02-14 liuli5079
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    2018-03-18 一叶知秋
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    2017-11-08 微分

    学习了谢谢了

    0

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  5. [GetPortalCommentsPageByObjectIdResponse(id=2087188, encodeId=57ee208e188ec, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Wed Feb 14 00:35:00 CST 2018, time=2018-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1882603, encodeId=af17188260396, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Sun Mar 18 13:35:00 CST 2018, time=2018-03-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=259827, encodeId=1b9525982e9d, content=学习了谢谢了, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a6831717982, createdName=微分, createdTime=Wed Nov 08 23:53:57 CST 2017, time=2017-11-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1540631, encodeId=58881540631e6, content=<a href='/topic/show?id=e1f281e045e' target=_blank style='color:#2F92EE;'>#肠道疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81704, encryptionId=e1f281e045e, topicName=肠道疾病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0d5513274388, createdName=guozhenyu, createdTime=Mon Nov 06 23:35:00 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=259085, encodeId=0864259085f9, content=学习学习.继续关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Mon Nov 06 07:13:18 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258842, encodeId=ffd825884296, content=学习了.谢谢., beContent=null, objectType=article, channel=null, level=null, likeNumber=92, 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=Sun Nov 05 10:17:29 CST 2017, time=2017-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258828, encodeId=27bc258828bf, content=谢谢分享.学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Sun Nov 05 09:47:23 CST 2017, time=2017-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258801, encodeId=43822588015d, content=自噬.是一种[自己吃自己"过程.是细胞维持物质周转的重要机制.当细胞内出现衰老的蛋白质.损坏的细胞器等废弃物时.自噬囊泡会将它们包裹并送至溶酶体中进行降解并得以循环利用.从而确保细胞自身的代谢需要和某些细胞器的更新., beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Pw2csslt7CukWiabqiblnQAXaDEiaxhu025c3P0XshccTrbvGWBjKvnHIxbK3vqa80P7WGIFuicCFet97TicrNKpgB3TdabxP1vMh/0, createdBy=28851960965, createdName=榄枷檬, createdTime=Sun Nov 05 08:58:35 CST 2017, time=2017-11-05, status=1, ipAttribution=)]
    2017-11-06 1dd8c52fm63(暂无匿称)

    学习学习.继续关注

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=2087188, encodeId=57ee208e188ec, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Wed Feb 14 00:35:00 CST 2018, time=2018-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1882603, encodeId=af17188260396, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Sun Mar 18 13:35:00 CST 2018, time=2018-03-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=259827, encodeId=1b9525982e9d, content=学习了谢谢了, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a6831717982, createdName=微分, createdTime=Wed Nov 08 23:53:57 CST 2017, time=2017-11-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1540631, encodeId=58881540631e6, content=<a href='/topic/show?id=e1f281e045e' target=_blank style='color:#2F92EE;'>#肠道疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81704, encryptionId=e1f281e045e, topicName=肠道疾病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0d5513274388, createdName=guozhenyu, createdTime=Mon Nov 06 23:35:00 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=259085, encodeId=0864259085f9, content=学习学习.继续关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Mon Nov 06 07:13:18 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258842, encodeId=ffd825884296, content=学习了.谢谢., beContent=null, objectType=article, channel=null, level=null, likeNumber=92, 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=Sun Nov 05 10:17:29 CST 2017, time=2017-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258828, encodeId=27bc258828bf, content=谢谢分享.学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Sun Nov 05 09:47:23 CST 2017, time=2017-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258801, encodeId=43822588015d, content=自噬.是一种[自己吃自己"过程.是细胞维持物质周转的重要机制.当细胞内出现衰老的蛋白质.损坏的细胞器等废弃物时.自噬囊泡会将它们包裹并送至溶酶体中进行降解并得以循环利用.从而确保细胞自身的代谢需要和某些细胞器的更新., beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Pw2csslt7CukWiabqiblnQAXaDEiaxhu025c3P0XshccTrbvGWBjKvnHIxbK3vqa80P7WGIFuicCFet97TicrNKpgB3TdabxP1vMh/0, createdBy=28851960965, createdName=榄枷檬, createdTime=Sun Nov 05 08:58:35 CST 2017, time=2017-11-05, status=1, ipAttribution=)]
    2017-11-05 惠映实验室

    学习了.谢谢.

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=2087188, encodeId=57ee208e188ec, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=55, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Wed Feb 14 00:35:00 CST 2018, time=2018-02-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1882603, encodeId=af17188260396, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=54, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=30bd35, createdName=一叶知秋, createdTime=Sun Mar 18 13:35:00 CST 2018, time=2018-03-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=259827, encodeId=1b9525982e9d, content=学习了谢谢了, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a6831717982, createdName=微分, createdTime=Wed Nov 08 23:53:57 CST 2017, time=2017-11-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1540631, encodeId=58881540631e6, content=<a href='/topic/show?id=e1f281e045e' target=_blank style='color:#2F92EE;'>#肠道疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=52, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81704, encryptionId=e1f281e045e, topicName=肠道疾病)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0d5513274388, createdName=guozhenyu, createdTime=Mon Nov 06 23:35:00 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=259085, encodeId=0864259085f9, content=学习学习.继续关注, beContent=null, objectType=article, channel=null, level=null, likeNumber=78, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=93f31631454, createdName=1dd8c52fm63(暂无匿称), createdTime=Mon Nov 06 07:13:18 CST 2017, time=2017-11-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258842, encodeId=ffd825884296, content=学习了.谢谢., beContent=null, objectType=article, channel=null, level=null, likeNumber=92, 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=Sun Nov 05 10:17:29 CST 2017, time=2017-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258828, encodeId=27bc258828bf, content=谢谢分享.学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6Nx0VGA4QMDzOP8oAgnV4h51EjSfehJ9QxyiaSmw8PB56BhY8KXFSxHCibXrzcy4abrzSibXQPxJ9kzrLcJyhhB8a/0, createdBy=1d3b1672603, createdName=明月清辉, createdTime=Sun Nov 05 09:47:23 CST 2017, time=2017-11-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=258801, encodeId=43822588015d, content=自噬.是一种[自己吃自己"过程.是细胞维持物质周转的重要机制.当细胞内出现衰老的蛋白质.损坏的细胞器等废弃物时.自噬囊泡会将它们包裹并送至溶酶体中进行降解并得以循环利用.从而确保细胞自身的代谢需要和某些细胞器的更新., beContent=null, objectType=article, channel=null, level=null, likeNumber=64, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/Pw2csslt7CukWiabqiblnQAXaDEiaxhu025c3P0XshccTrbvGWBjKvnHIxbK3vqa80P7WGIFuicCFet97TicrNKpgB3TdabxP1vMh/0, createdBy=28851960965, createdName=榄枷檬, createdTime=Sun Nov 05 08:58:35 CST 2017, time=2017-11-05, status=1, ipAttribution=)]
    2017-11-05 明月清辉

    谢谢分享.学习了

    0

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    2017-11-05 榄枷檬

    自噬.是一种[自己吃自己"过程.是细胞维持物质周转的重要机制.当细胞内出现衰老的蛋白质.损坏的细胞器等废弃物时.自噬囊泡会将它们包裹并送至溶酶体中进行降解并得以循环利用.从而确保细胞自身的代谢需要和某些细胞器的更新.

    0

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Diabetes:肥胖相关的肝脏胰岛素抵抗新机制

在此项研究者,作者建立了一种在肥胖和糖尿病中功能被扰乱的蛋白质,S-亚硝基谷胱甘肽还原酶(GSNOR),这是调节炎症和自噬间关键环节的主要蛋白质。

J Biol Chem:TRPC1抑制了运动对II型糖尿病风险积极作用的机制研究。

TRPC1的丢失可能改变细胞能量代谢的调节,导致胰岛素抵抗,进而导致糖尿病的发生。

J Cell Mol Med:自噬在长期腹膜透析中促进腹膜纤维化和凋亡。

长期腹膜透析伴随着腹膜的功能和组织病理学改变。在腹膜透析的长期过程中,高糖腹膜透析液(HGPDS)会加重腹膜纤维化,导致腹膜透析效果下降和超滤失败。

Sci Rep:自噬在危重疾病引起的肝损伤中的作用。

在这项研究中,作者探索了如果在危重疾病期间不能急性激活肝脏自噬是否会增加肝线粒体功能障碍和影响UPR,从而加重肝损伤。

Am J Physiol Lung Cell Mol Physiol:自噬抑制剂3-甲基腺嘌呤可以保护急性肺损伤时内皮细胞屏障功能障碍。

近期的研究涉及自噬在许多包括肺部的疾病中的作用。然而,自噬在内皮细胞(EC)屏障功能障碍及其在急性肺损伤(ALI)背景下与EC屏障功能障碍的相关性仍然不确定。

Oncogene:AML潜在的治疗策略 — 以自噬或ATF4为治疗标靶。

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