Plos Biol:遗传发育所在小头症发病机制研究中取得进展

2018-12-31 佚名 遗传发育所

WDR62基因突变是导致小头症的第二大主因,中国科学院遗传与发育生物学研究所许执恒研究组前期研究结果发现WDR62降低会导致神经前体细胞增殖减少,分化提前,并进一步导致神经元数量减少。然而,WDR62调控神经发生及大脑尺寸的分子机制依然不太清楚。

WDR62基因突变是导致小头症的第二大主因,中国科学院遗传与发育生物学研究所许执恒研究组前期研究结果发现WDR62降低会导致神经前体细胞增殖减少,分化提前,并进一步导致神经元数量减少。然而,WDR62调控神经发生及大脑尺寸的分子机制依然不太清楚。

中国科学院遗传与发育生物学研究所许执恒研究组利用多种基因敲除小鼠表型分析发现Mekk3,Jnk1和WDR62基因敲除小鼠都会导致类似WDR62缺失的表型,即神经前体细胞增殖减少分化提前。进一步生化分析表明蛋白激酶MEKK3可以与WDR62蛋白形成一个蛋白复合体,稳定WDR62蛋白并协同调控JNK信号通路的活性。进一步研究还发现,JNK可以磷酸化WDR62(1053位点),并招募泛素化连接酶FBW7泛素化降解WDR62,从而负向调控WDR62蛋白的稳定性。这些结果表明MEKK3和FBW7双向调控小头症相关蛋白WDR62的稳定性,进而调控大脑皮层神经前体细胞的稳态平衡与分化。该研究阐明了一个调控神经发生的新型蛋白复合体及信号通路,并详细阐明了小头症的发病机制。

该研究于12月19日在线发表于PLoS Biology 杂志。许执恒研究组徐丹、姚明慧、王雅清和袁玲为该文的共同第一作者。该研究得到国家自然基金委和中科院先导与前沿项目的支持。

图:MEKK3和FBW7协调调控WDR62蛋白稳定性及神经干细胞的稳态平衡

原始出处:Dan Xu , Minghui Yao , Yaqing Wang,  et al. MEKK3 coordinates with FBW7 to regulate WDR62 stability and neurogenesis. Plos Biol. December 19, 2018

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=2056194, encodeId=f5412056194b0, content=<a href='/topic/show?id=616b611e9bc' target=_blank style='color:#2F92EE;'>#机制研究#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61179, encryptionId=616b611e9bc, topicName=机制研究)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Fri Mar 01 16:30:00 CST 2019, time=2019-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1694744, encodeId=b2d51694e4457, content=<a href='/topic/show?id=f80c4e003e1' target=_blank style='color:#2F92EE;'>#小头症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=47003, encryptionId=f80c4e003e1, topicName=小头症)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a1229733121, createdName=nian.wang1992, createdTime=Tue Sep 03 17:30:00 CST 2019, time=2019-09-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1767582, encodeId=53d51e67582ef, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Wed Jan 30 07:30:00 CST 2019, time=2019-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918451, encodeId=80e01918451e7, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=医者仁心, createdTime=Thu Apr 04 22:30:00 CST 2019, time=2019-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1347361, encodeId=d7c3134e361e2, content=<a href='/topic/show?id=88713e938c1' target=_blank style='color:#2F92EE;'>#发育#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37938, encryptionId=88713e938c1, topicName=发育)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f4c124, createdName=neurowu, createdTime=Wed Jan 02 02:30:00 CST 2019, time=2019-01-02, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=2056194, encodeId=f5412056194b0, content=<a href='/topic/show?id=616b611e9bc' target=_blank style='color:#2F92EE;'>#机制研究#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61179, encryptionId=616b611e9bc, topicName=机制研究)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Fri Mar 01 16:30:00 CST 2019, time=2019-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1694744, encodeId=b2d51694e4457, content=<a href='/topic/show?id=f80c4e003e1' target=_blank style='color:#2F92EE;'>#小头症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=47003, encryptionId=f80c4e003e1, topicName=小头症)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a1229733121, createdName=nian.wang1992, createdTime=Tue Sep 03 17:30:00 CST 2019, time=2019-09-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1767582, encodeId=53d51e67582ef, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Wed Jan 30 07:30:00 CST 2019, time=2019-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918451, encodeId=80e01918451e7, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=医者仁心, createdTime=Thu Apr 04 22:30:00 CST 2019, time=2019-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1347361, encodeId=d7c3134e361e2, content=<a href='/topic/show?id=88713e938c1' target=_blank style='color:#2F92EE;'>#发育#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37938, encryptionId=88713e938c1, topicName=发育)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f4c124, createdName=neurowu, createdTime=Wed Jan 02 02:30:00 CST 2019, time=2019-01-02, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=2056194, encodeId=f5412056194b0, content=<a href='/topic/show?id=616b611e9bc' target=_blank style='color:#2F92EE;'>#机制研究#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61179, encryptionId=616b611e9bc, topicName=机制研究)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Fri Mar 01 16:30:00 CST 2019, time=2019-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1694744, encodeId=b2d51694e4457, content=<a href='/topic/show?id=f80c4e003e1' target=_blank style='color:#2F92EE;'>#小头症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=47003, encryptionId=f80c4e003e1, topicName=小头症)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a1229733121, createdName=nian.wang1992, createdTime=Tue Sep 03 17:30:00 CST 2019, time=2019-09-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1767582, encodeId=53d51e67582ef, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Wed Jan 30 07:30:00 CST 2019, time=2019-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918451, encodeId=80e01918451e7, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=医者仁心, createdTime=Thu Apr 04 22:30:00 CST 2019, time=2019-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1347361, encodeId=d7c3134e361e2, content=<a href='/topic/show?id=88713e938c1' target=_blank style='color:#2F92EE;'>#发育#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37938, encryptionId=88713e938c1, topicName=发育)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f4c124, createdName=neurowu, createdTime=Wed Jan 02 02:30:00 CST 2019, time=2019-01-02, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=2056194, encodeId=f5412056194b0, content=<a href='/topic/show?id=616b611e9bc' target=_blank style='color:#2F92EE;'>#机制研究#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61179, encryptionId=616b611e9bc, topicName=机制研究)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Fri Mar 01 16:30:00 CST 2019, time=2019-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1694744, encodeId=b2d51694e4457, content=<a href='/topic/show?id=f80c4e003e1' target=_blank style='color:#2F92EE;'>#小头症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=47003, encryptionId=f80c4e003e1, topicName=小头症)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a1229733121, createdName=nian.wang1992, createdTime=Tue Sep 03 17:30:00 CST 2019, time=2019-09-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1767582, encodeId=53d51e67582ef, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Wed Jan 30 07:30:00 CST 2019, time=2019-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918451, encodeId=80e01918451e7, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=医者仁心, createdTime=Thu Apr 04 22:30:00 CST 2019, time=2019-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1347361, encodeId=d7c3134e361e2, content=<a href='/topic/show?id=88713e938c1' target=_blank style='color:#2F92EE;'>#发育#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37938, encryptionId=88713e938c1, topicName=发育)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f4c124, createdName=neurowu, createdTime=Wed Jan 02 02:30:00 CST 2019, time=2019-01-02, status=1, ipAttribution=)]
    2019-04-04 医者仁心
  5. [GetPortalCommentsPageByObjectIdResponse(id=2056194, encodeId=f5412056194b0, content=<a href='/topic/show?id=616b611e9bc' target=_blank style='color:#2F92EE;'>#机制研究#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=27, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61179, encryptionId=616b611e9bc, topicName=机制研究)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Fri Mar 01 16:30:00 CST 2019, time=2019-03-01, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1694744, encodeId=b2d51694e4457, content=<a href='/topic/show?id=f80c4e003e1' target=_blank style='color:#2F92EE;'>#小头症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=47003, encryptionId=f80c4e003e1, topicName=小头症)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=7a1229733121, createdName=nian.wang1992, createdTime=Tue Sep 03 17:30:00 CST 2019, time=2019-09-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1767582, encodeId=53d51e67582ef, content=<a href='/topic/show?id=64f5343e2f' target=_blank style='color:#2F92EE;'>#Biol#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=23, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3437, encryptionId=64f5343e2f, topicName=Biol)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=446937890434, createdName=12498ebem31暂无昵称, createdTime=Wed Jan 30 07:30:00 CST 2019, time=2019-01-30, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1918451, encodeId=80e01918451e7, content=<a href='/topic/show?id=4f26341994' target=_blank style='color:#2F92EE;'>#Bio#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=3419, encryptionId=4f26341994, topicName=Bio)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=医者仁心, createdTime=Thu Apr 04 22:30:00 CST 2019, time=2019-04-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1347361, encodeId=d7c3134e361e2, content=<a href='/topic/show?id=88713e938c1' target=_blank style='color:#2F92EE;'>#发育#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=26, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37938, encryptionId=88713e938c1, topicName=发育)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f4c124, createdName=neurowu, createdTime=Wed Jan 02 02:30:00 CST 2019, time=2019-01-02, status=1, ipAttribution=)]
    2019-01-02 neurowu

相关资讯

巴西新生儿小头症确诊逾千例 200多例死亡

当地时间4月5日,巴西卫生部发布的最新疫情报告称,截至4月2日,巴西新生儿小头畸形症病例的确诊数量已达1046例,比一周前增加102例。其中,在孕期或产后因小头症或中枢神经系统其他变化导致的死亡报告数达227例。 巴西自2015年10月22日启动关于小头症病例的登记调查制度以来,截至4月2日,全国共报告6906例新生儿小头症疑似病例,其中排除1814例,确诊1046例,另外4046例仍在检

科学家想搭“寨卡”顺风车

  这名22岁的男子曾受到严重巨细胞病毒感染,至今仍不能用语言交流。图片来源:LOU Collection 有一种病毒每年会导致美国数百名婴儿死亡,并使数千名新生儿产生缺陷,其中包括小头症和脑萎缩。其致病源头并非寨卡病毒,而是一种更加普遍的、毒性并不高的病毒:巨细胞病毒(CMV)。 现在,当媒体和卫生官员将目光聚焦于寨卡病毒在美国等地的传播时,很多研究人员和倡

科学家首次证实“寨卡”杀死发育脑细胞

科学家首次证实“寨卡”杀死发育脑细胞 为该病毒与新生儿小头症关联提供合理解释 一名巴西里约热内卢的孕妇在感染寨卡病毒后生下了一名小头症婴儿。图片来源:Antonio Lacerda 对寨卡病毒的恐惧传播得就像这种病原体本身一样迅速。如今,两项实验室研究第一次提供了这种病毒如何在婴儿中导致脑缺陷的确凿证据。研究表明,寨卡病毒能够优先杀死发育中的脑细胞。这一发现为寨卡病毒与新

寨卡或许比想象更可怕:可能导致神经系统疾病

●疾病预防控制中心已经得出结论,认为寨卡是引起新生儿小头症以及其他婴儿脑部严重缺陷的病源。    ●关于寨卡病毒,我们现在观察到的远比最初以为的要可怕得多。   面对寨卡,科学界刚刚赢得了一场战役,然而整个战争却还远远没有结束。 刊登在4月13日的《新英格兰医学杂志》上的一项研究,首次确认了寨卡与新生儿小头症的关联,证实了孕妇感染该病毒将会导致胎儿头部发

巴西奥运会门票还真卖不出去了?!

四年一度的全球体育盛会还剩下110多天就要在巴西里约热内卢举行啦,遥想08年北京奥运会的盛况,心情仍十分激动,虽然遗憾没能到现场参观,但看电视这场景也是很震撼了!这人山人海,这气势磅礴!我激动!我骄傲!但2016年里约热内卢奥运会主办方,现在不是愁着交通,场地设置,环境,而是愁着门票卖不出去啊!4月5日里约奥运组委会发言人菲尔·威尔金森(Phil Wikinson)在接受媒体采访时表示,目前为止奥

Cell Immunity: 25-羟基胆固醇,对抗寨卡病毒的新方法

研究者们发现25-羟基胆固醇能够阻止寨卡病毒进入人的脑皮质细胞从而保护神经细胞和降低小头症的发生率。