Baidu
map

Cell:牛!单个基因就可帮助抵御神经变性疾病的发生

2016-08-08 佚名 生物谷

最近,一项发表于国际杂志Cell上的研究报告中,来自格拉斯格大学的研究人员通过研究揭示了细胞如何保护自身免于“蛋白聚集团块”的产生,而这些蛋白团块是引发包括阿尔兹海默氏症、帕金森疾病及亨廷顿氏症等在内的神经变性疾病的根源;本文研究中研究者揭示了基因UBQLN2的特殊角色,以及该基因如何帮助机体移除毒性蛋白聚集物而免于神经变性疾病的发生。 文章中,利用生物化学、细胞生物学及复杂的小鼠模型进行研

最近,一项发表于国际杂志Cell上的研究报告中,来自格拉斯格大学的研究人员通过研究揭示了细胞如何保护自身免于“蛋白聚集团块”的产生,而这些蛋白团块是引发包括阿尔兹海默氏症、帕金森疾病及亨廷顿氏症等在内的神经变性疾病的根源;本文研究中研究者揭示了基因UBQLN2的特殊角色,以及该基因如何帮助机体移除毒性蛋白聚集物而免于神经变性疾病的发生。

文章中,利用生物化学、细胞生物学及复杂的小鼠模型进行研究,研究人员发现,基因UBQLN2的主要功能就是帮助细胞清除危险性的蛋白聚集物,该基因首先可以缠结蛋白聚集物,随后通过打碎这些聚集物来抑制后期蛋白的聚集。蛋白质团块的形成是机体自然老化过程的一部分,但其正常情况下的缠结和处理过程都是通过基因UBQLN2来完成的;然而当该基因突变或者发生故障时,其就不再帮助细胞清除这些毒性的蛋白质聚集物了,从而就会引发神经变性疾病的发生。

研究者Thimo Kurz表示,基因UBQLN2的功能和许多神经变性疾病直接相关,比如帕金森疾病、阿尔兹海默氏症及亨廷顿氏症等。神经变性疾病患者大脑细胞中通常会出现明显的蛋白质聚集物,利用小鼠来模拟人类亨廷顿氏症进行研究,我们发现当UBQLN2基因突变时,其就不能够帮助神经细胞来移除有害的蛋白质聚集物了。

此前研究结果表明,当UBQLN2出现错误时就会导致肌萎缩性脊髓侧索硬化症及额颞叶痴呆的发生,然而截止到这项研究进行时研究者都并不是完全理解为何该基因的突变会引发上述疾病的发生。如今科学家们精确解析了基因UBQLN2的工作机制,同时也阐明了该基因对机体的重要性;研究者希望本文研究或为后期开发治疗神经变性疾病的新型疗法提供新的线索。

最后研究者Roland Hjerpe说道,我们的研究揭示了基因UBQLN2在运动神经元疾病中所扮演的关键角色;同时这项研究也揭示了神经细胞如何利用特殊机制来处理细胞中的蛋白质聚集物,这对于深入剖析神经变性疾病的发病机制,以及开发相应的干预措施或提供一定帮助和希望。

原始出处

Roland Hjerpe7, John S. Bett7,correspondencePress enter key for correspondence informationemailPress enter key to Email the author, Matthew J. Keuss, Alexandra Solovyova, Thomas G. McWilliams, Clare Johnson, Indrajit Sahu, Joby Varghese, Nicola Wood, Melanie Wightman, Georgina Osborne, Gillian P. Bates, Michael H. Glickman, Matthias Trost, Axel Knebel, Francesco Marchesi, Thimo Kurz.UBQLN2 Mediates Autophagy-Independent Protein Aggregate Clearance by the Proteasome.Cell.2016

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1959757, encodeId=74031959e5716, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Tue Apr 11 20:46:00 CST 2017, time=2017-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869498, encodeId=b2601869498bf, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Tue Apr 04 18:46:00 CST 2017, time=2017-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1366675, encodeId=a2be13666e558, content=<a href='/topic/show?id=288de424762' target=_blank style='color:#2F92EE;'>#神经变性疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74247, encryptionId=288de424762, topicName=神经变性疾病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5a6b240, createdName=俅侠, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1463513, encodeId=40ee1463513bc, content=<a href='/topic/show?id=7d27381288e' target=_blank style='color:#2F92EE;'>#变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38128, encryptionId=7d27381288e, topicName=变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f69f6545041, createdName=huangdf, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590515, encodeId=44bc1590515aa, content=<a href='/topic/show?id=d785e42454f' target=_blank style='color:#2F92EE;'>#神经变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=116, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74245, encryptionId=d785e42454f, topicName=神经变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d72417807199, createdName=mfx805, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=)]
    2017-04-11 维他命
  2. [GetPortalCommentsPageByObjectIdResponse(id=1959757, encodeId=74031959e5716, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Tue Apr 11 20:46:00 CST 2017, time=2017-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869498, encodeId=b2601869498bf, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Tue Apr 04 18:46:00 CST 2017, time=2017-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1366675, encodeId=a2be13666e558, content=<a href='/topic/show?id=288de424762' target=_blank style='color:#2F92EE;'>#神经变性疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74247, encryptionId=288de424762, topicName=神经变性疾病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5a6b240, createdName=俅侠, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1463513, encodeId=40ee1463513bc, content=<a href='/topic/show?id=7d27381288e' target=_blank style='color:#2F92EE;'>#变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38128, encryptionId=7d27381288e, topicName=变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f69f6545041, createdName=huangdf, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590515, encodeId=44bc1590515aa, content=<a href='/topic/show?id=d785e42454f' target=_blank style='color:#2F92EE;'>#神经变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=116, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74245, encryptionId=d785e42454f, topicName=神经变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d72417807199, createdName=mfx805, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1959757, encodeId=74031959e5716, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Tue Apr 11 20:46:00 CST 2017, time=2017-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869498, encodeId=b2601869498bf, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Tue Apr 04 18:46:00 CST 2017, time=2017-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1366675, encodeId=a2be13666e558, content=<a href='/topic/show?id=288de424762' target=_blank style='color:#2F92EE;'>#神经变性疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74247, encryptionId=288de424762, topicName=神经变性疾病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5a6b240, createdName=俅侠, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1463513, encodeId=40ee1463513bc, content=<a href='/topic/show?id=7d27381288e' target=_blank style='color:#2F92EE;'>#变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38128, encryptionId=7d27381288e, topicName=变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f69f6545041, createdName=huangdf, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590515, encodeId=44bc1590515aa, content=<a href='/topic/show?id=d785e42454f' target=_blank style='color:#2F92EE;'>#神经变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=116, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74245, encryptionId=d785e42454f, topicName=神经变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d72417807199, createdName=mfx805, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1959757, encodeId=74031959e5716, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Tue Apr 11 20:46:00 CST 2017, time=2017-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869498, encodeId=b2601869498bf, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Tue Apr 04 18:46:00 CST 2017, time=2017-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1366675, encodeId=a2be13666e558, content=<a href='/topic/show?id=288de424762' target=_blank style='color:#2F92EE;'>#神经变性疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74247, encryptionId=288de424762, topicName=神经变性疾病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5a6b240, createdName=俅侠, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1463513, encodeId=40ee1463513bc, content=<a href='/topic/show?id=7d27381288e' target=_blank style='color:#2F92EE;'>#变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38128, encryptionId=7d27381288e, topicName=变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f69f6545041, createdName=huangdf, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590515, encodeId=44bc1590515aa, content=<a href='/topic/show?id=d785e42454f' target=_blank style='color:#2F92EE;'>#神经变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=116, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74245, encryptionId=d785e42454f, topicName=神经变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d72417807199, createdName=mfx805, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=)]
    2016-08-10 huangdf
  5. [GetPortalCommentsPageByObjectIdResponse(id=1959757, encodeId=74031959e5716, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=76, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Tue Apr 11 20:46:00 CST 2017, time=2017-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869498, encodeId=b2601869498bf, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=51, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Tue Apr 04 18:46:00 CST 2017, time=2017-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1366675, encodeId=a2be13666e558, content=<a href='/topic/show?id=288de424762' target=_blank style='color:#2F92EE;'>#神经变性疾病#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74247, encryptionId=288de424762, topicName=神经变性疾病)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5a6b240, createdName=俅侠, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1463513, encodeId=40ee1463513bc, content=<a href='/topic/show?id=7d27381288e' target=_blank style='color:#2F92EE;'>#变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=38128, encryptionId=7d27381288e, topicName=变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f69f6545041, createdName=huangdf, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1590515, encodeId=44bc1590515aa, content=<a href='/topic/show?id=d785e42454f' target=_blank style='color:#2F92EE;'>#神经变性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=116, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74245, encryptionId=d785e42454f, topicName=神经变性)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d72417807199, createdName=mfx805, createdTime=Wed Aug 10 01:46:00 CST 2016, time=2016-08-10, status=1, ipAttribution=)]

相关资讯

J Neurosci:spectraplakins蛋白或为治疗神经变性疾病提供新思路

近日,来自曼彻斯特大学的研究者揭示了神经细胞如何向大脑“发电报”的内在分子机制,研究发现或许为神经变性疾病的治疗提供新思路,相关研究成果刊登在了国际著名杂志Journal of Neuroscience上。 研究团队表示,如果轴突不能正常发育,这就会导致先天性疾病,如智力损伤等。轴突的生长发育直接受其顶端的手型生长锥控制,研究者重点研究了生长锥移动的驱动器-细胞骨架,细胞骨架可以帮助细胞维持其

Science:特殊MicroRNA分子的缺失或在神经变性疾病中扮演重要角色

最近,来自索尔克研究所的科学家通过研究在国际杂志Science上发表文章称,人类机体的特殊DNA可以产生一种分子,该分子对于控制机体的肌肉有着重要的影响作用;研究者发现,不能够产生microRNAs的动物或许会引发破坏性的神经变性疾病症状,比如肌萎缩性侧索硬化等疾病,本文研究阐明了microRNAs在神经系统中的关键角色,并为开发治疗神经变性疾病的新型疗法提供了新的思路。 研究者Samuel

Neuron:线粒体长度异常会促进神经变性疾病发展

哈佛医学院研究人员发现,产生能量的细胞器即线粒体的长度异常会促进神经变性疾病如阿尔茨海默氏症的发生于发展。 近来,越来越多的研究关注于阿尔茨海默氏症和tau蛋白有关的疾病中的线粒体作用,但线美国马萨诸塞州总医院的博士后研究员Brian DuBoff研究表示:粒体与上述疾病之间的因果关系仍是未知的。更深入地了解线粒体的功能和阿尔茨海默氏症之间的关系可能会引导我们在未来开发更有针对性的治疗手段。相关

Exp Neurol:为何HIV病人会患痴呆症?

HIV相关的神经认知障碍(HAND)包括认知功能的障碍、运动能力的障碍及行为的改变等;而目前关于HIV相关的神经认知障碍发病的分子机制却不得而知;近日,来自波鸿大学的研究人员通过研究表示,HIV或许对神经细胞有害,而且其往往会间接诱发神经细胞的损伤。相关研究成果刊登于国际杂志Experimental Neurology上。 HIV会克服血脑屏障感染机体的免疫细胞、单核细胞及T细胞,文章中

Baidu
map
Baidu
map
Baidu
map