Nat Commun:自噬激活药物可长期清除阿尔兹海默相关tau蛋白

2020-06-28 MedSci原创 MedSci原创

研究人员探索了自噬作为减少人类神经元tau负担的机制,并从小分子筛选中,发现了mTOR抑制剂OSI-027、AZD2014和AZD8055。

Tau蛋白病理是与脑内异常tau蛋白积累相关的神经退行性疾病。在体外,患者iPSC衍生的神经元细胞模型复制了疾病相关的表型,这些表型可以作为药物发现的目标。

最近,研究人员探索了自噬作为减少人类神经元tau负担的机制,并从小分子筛选中,发现了mTOR抑制剂OSI-027、AZD2014和AZD8055。这些化合物比雷帕霉素更强效,并强力下调了磷酸化和不溶性tau,从而降低tau介导的神经元应激脆弱性。

mTORC1抑制和自噬活性与tau清除直接相关。值得注意的是,单剂量治疗后就可使tau水平和毒性降低12天,这反映了对mTORC1抑制和自噬的持续影响。

这种对mTOR抑制剂调节神经元自噬的药效学的新见解可能有助于开发治疗tau相关疾病的疗法。

 

原始出处:

M. Catarina Silva et al. Prolonged tau clearance and stress vulnerability rescue by pharmacological activation of autophagy in tauopathy neurons, Nature Communications (2020). 

 

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    2021-04-01 liye789132251
  2. [GetPortalCommentsPageByObjectIdResponse(id=1884426, encodeId=17df1884426a3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Apr 01 14:21:23 CST 2021, time=2021-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2087706, encodeId=e705208e706bf, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Fri Apr 23 07:21:23 CST 2021, time=2021-04-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1402800, encodeId=3762140280036, 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=0, 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=Tue Jun 30 08:21:23 CST 2020, time=2020-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1509292, encodeId=7b33150929264, content=<a href='/topic/show?id=19791e14471' target=_blank style='color:#2F92EE;'>#Tau#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17144, encryptionId=19791e14471, topicName=Tau)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=55c610090940, createdName=szhvet, createdTime=Tue Jun 30 08:21:23 CST 2020, time=2020-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=800146, encodeId=9433800146e4, content=<a href='/topic/show?id=049b86109ff' target=_blank style='color:#2F92EE;'>#自噬#</a>肚饿一个能够激活自噬,是不是也可以治疗老年痴呆。, beContent=null, objectType=article, channel=null, level=null, likeNumber=181, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86109, encryptionId=049b86109ff, topicName=自噬)], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/02/28/889a1910ded7780f3c049b354f1648b7.jpg, createdBy=2a791737770, createdName=mswert122, createdTime=Sun Jun 28 17:34:25 CST 2020, time=2020-06-28, status=1, ipAttribution=)]
    2021-04-23 liuli5079
  3. [GetPortalCommentsPageByObjectIdResponse(id=1884426, encodeId=17df1884426a3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Apr 01 14:21:23 CST 2021, time=2021-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2087706, encodeId=e705208e706bf, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Fri Apr 23 07:21:23 CST 2021, time=2021-04-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1402800, encodeId=3762140280036, 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=0, 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=Tue Jun 30 08:21:23 CST 2020, time=2020-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1509292, encodeId=7b33150929264, content=<a href='/topic/show?id=19791e14471' target=_blank style='color:#2F92EE;'>#Tau#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17144, encryptionId=19791e14471, topicName=Tau)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=55c610090940, createdName=szhvet, createdTime=Tue Jun 30 08:21:23 CST 2020, time=2020-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=800146, encodeId=9433800146e4, content=<a href='/topic/show?id=049b86109ff' target=_blank style='color:#2F92EE;'>#自噬#</a>肚饿一个能够激活自噬,是不是也可以治疗老年痴呆。, beContent=null, objectType=article, channel=null, level=null, likeNumber=181, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86109, encryptionId=049b86109ff, topicName=自噬)], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/02/28/889a1910ded7780f3c049b354f1648b7.jpg, createdBy=2a791737770, createdName=mswert122, createdTime=Sun Jun 28 17:34:25 CST 2020, time=2020-06-28, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1884426, encodeId=17df1884426a3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=33, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Thu Apr 01 14:21:23 CST 2021, time=2021-04-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2087706, encodeId=e705208e706bf, content=<a href='/topic/show?id=490750196b' target=_blank style='color:#2F92EE;'>#COMMUN#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=5019, encryptionId=490750196b, topicName=COMMUN)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7931272, createdName=liuli5079, createdTime=Fri Apr 23 07:21:23 CST 2021, time=2021-04-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1402800, encodeId=3762140280036, 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=0, 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=Tue Jun 30 08:21:23 CST 2020, time=2020-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1509292, encodeId=7b33150929264, content=<a href='/topic/show?id=19791e14471' target=_blank style='color:#2F92EE;'>#Tau#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=17144, encryptionId=19791e14471, topicName=Tau)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=55c610090940, createdName=szhvet, createdTime=Tue Jun 30 08:21:23 CST 2020, time=2020-06-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=800146, encodeId=9433800146e4, content=<a href='/topic/show?id=049b86109ff' target=_blank style='color:#2F92EE;'>#自噬#</a>肚饿一个能够激活自噬,是不是也可以治疗老年痴呆。, beContent=null, objectType=article, channel=null, level=null, likeNumber=181, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86109, encryptionId=049b86109ff, topicName=自噬)], attachment=null, authenticateStatus=null, createdAvatar=https://cdnapi.center.medsci.cn/medsci/head/2017/02/28/889a1910ded7780f3c049b354f1648b7.jpg, createdBy=2a791737770, createdName=mswert122, createdTime=Sun Jun 28 17:34:25 CST 2020, time=2020-06-28, status=1, ipAttribution=)]
    2020-06-30 szhvet
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    2020-06-28 mswert122

    #自噬#肚饿一个能够激活自噬,是不是也可以治疗老年痴呆。

    0

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