...
首页> 外文期刊>Neuron >The Transcription Factor Pax6 Regulates Survival of Dopaminergic Olfactory Bulb Neurons via Crystallin alphaA.
【24h】

The Transcription Factor Pax6 Regulates Survival of Dopaminergic Olfactory Bulb Neurons via Crystallin alphaA.

机译:转录因子Pax6通过Crystallin alphaA调节多巴胺能嗅球神经元的存活。

获取原文
获取原文并翻译 | 示例
           

摘要

Most neurons in the adult mammalian brain survive for the entire life of an individual. However, it is not known which transcriptional pathways regulate this survival in a healthy brain. Here, we identify a pathway regulating neuronal survival in a highly subtype-specific manner. We show that the transcription factor Pax6 expressed in dopaminergic neurons of the olfactory bulb regulates the survival of these neurons by directly controlling the expression of crystallin alphaA (CryalphaA), which blocks apoptosis by inhibition of procaspase-3 activation. Re-expression of CryalphaA fully rescues survival of Pax6-deficient dopaminergic interneurons in vivo and knockdown of CryalphaA by shRNA in wild-type mice reduces the number of dopaminergic OB interneurons. Strikingly, Pax6 utilizes different DNA-binding domains for its well-known role in fate specification and this role of regulating the survival of specific neuronal subtypes in the mature, healthy brain.
机译:成年哺乳动物大脑中的大多数神经元在个体的整个生命中都可以存活。但是,尚不清楚哪些转录途径调节健康大脑中的这种存活。在这里,我们确定了一种以高度亚型特异性的方式调节神经元存活的途径。我们显示,在嗅球的多巴胺能神经元中表达的转录因子Pax6通过直接控制CrystallinαA(CryalphaA)的表达来调节这些神经元的存活,该表达通过抑制procaspase-3激活来阻止细胞凋亡。 CryalphaA的重新表达完全挽救了Pax6缺陷型多巴胺能中间神经元的体内存活,并且在野生型小鼠中通过shRNA敲低CryalphaA可以减少多巴胺能OB内部神经元的数量。令人惊讶的是,Pax6利用不同的DNA结合结构域来发挥其在命运规范中的众所周知的作用,并具有调节成熟,健康的大脑中特定神经元亚型存活的作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号