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Modeling Paracrine Noncanonical Wnt Signaling In Vitro
Published on: December 10, 2021
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裸体皮质编码了一个可诱导的Wnt信号的对手
W Zeng1, K A Wharton, J A Mack
1Department of Developmental Biology, Howard Hughes Medical Institute, Beckman Center, Stanford University School of Medicine, California 94305, USA.
Nature
|February 29, 2000
概括
裸体皮质 (nkd) 作为Drosophila发育中的Wnt信号对手. 这个基因,这个基因.
科学领域:
- 发育生物学 发展生物学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 细胞对分泌信号的反应在动物发育过程中至关重要.
- 诱导性对抗剂调节信号通路,如,TGF-β,EGF和FGF/Ras.
- 在发育和癌症中,Wnt信号发挥着至关重要的作用.
研究的目的:
- 调查Drosophila细分极性基因裸体皮质 (nkd) 的作用.
- 要确定nkd是否作为Wnt信号无翼 (Wg) 的对手.
- 阐明nkd在Wnt通路调节中的机制和影响.
主要方法:
- 研究了Drosophila胚胎和影像盘中的nkd基因表达和功能.
- 分析了由nkd功能下降和nkd过度产生的表型.
- 在脊椎动物Xenopus laevis中检查了Nkd错误表达.
- 进行了Nkd的蛋白质序列分析,确定了一个EF手动图案.
主要成果:
- nkd转录是由Drosophila中的Wg信号诱导的.
- 在早期胚胎中,nkd功能的丧失模仿了过量的Wg信号.
- 在Drosophila和Xenopus中,Nkd的过度产生或错误表达会导致类似于Wnt功能丧失的表型.
- Nkd蛋白与recoverin有相似之处,这表明它与离子流有联系.
结论:
- 裸体皮质 (nkd) 是Wnt/Wg信号的诱导性对手.
- Nkd调节Wnt信号的强度,持续时间或分布,可能通过离子流.
- 像nkd这样的信号诱导反对手对于限制发育和疾病中的Wnt信号至关重要.
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