首页> 外文期刊>Nature >TRANSCRIPTION FACTOR AP-2 ESSENTIAL FOR CRANIAL CLOSURE AND CRANIOFACIAL DEVELOPMENT
【24h】

TRANSCRIPTION FACTOR AP-2 ESSENTIAL FOR CRANIAL CLOSURE AND CRANIOFACIAL DEVELOPMENT

机译:转录因子AP-2对于颅骨闭合和颅面发育至关重要

获取原文
获取原文并翻译 | 示例
           

摘要

DURING closure of the neural tube in the mouse, transcription factor AP-2 (refs 1-4) is expressed in ectoderm and in neural-crest cells migrating from the cranial neural folds(5). Cranial neural crest cells provide patterning information for craniofacial morphogenesis, generate most of the skull bones, and, together with placodal ectoderm, form the cranial ganglia(6-8). To study the role of AP-2 during embryogenesis, we undertook a targeted mutagenesis of the AP-2 gene in the mouse. Here we report that AP-2(-/-) mice died perinatally with cranio-abdominoschisis and severe dismorphogenesis of the face, skull, sensory organs and cranial ganglia. Failure of cranial closure between 9 and 9.5 days postcoitum coincided with increased apoptosis in the midbrain, anterior hindbrain and proximal mesenchyme of the first branchial arch, but did not involve loss of expression of twist or Pax-3, two other regulatory genes known to be required for cranial closure. [References: 30]
机译:在小鼠神经管闭合期间,转录因子AP-2(参考文献1-4)在外胚层和从颅神经褶皱迁移的神经-细胞中表达(5)。颅神经rest细胞提供颅面形态发生的模式信息,产生大部分颅骨,并与角膜外胚层一起形成颅神经节(6-8)。为了研究AP-2在胚胎发生过程中的作用,我们对AP-2基因在小鼠中进行了定向诱变。在这里我们报告说,AP-2(-/-)小鼠在围产期死亡,伴有腹部腹泻和面部,颅骨,感觉器官和颅神经节的严重畸形。交房后9至9.5天颅骨闭合失败与第一分支弓的中脑,前后脑和近端间充质细胞凋亡增加同时发生,但不涉及扭转或Pax-3表达的丧失,这是另外两个已知的调控基因颅闭合所需。 [参考:30]

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