细胞迁移的指导由多索菲拉的PDGF/VEGF受体进行
P Duchek1, K Somogyi, G Jékely
1European Molecular Biology Laboratory, Developmental Biology Programme, 69117 Heidelberg, Germany.
Cell
|October 12, 2001
概括
在Drosophila oogenesis中,有针对性的细胞迁移涉及PVR信号传递,与EGFR多余. 拉克及其激活剂mbc调解了这一指导,这对发展至关重要.
科学领域:
- 发展生物学 发展生物学
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 有针对性的细胞迁移对于胚胎发育至关重要.
- 在体内引导细胞迁移的分子机制的理解仍然是一个挑战.
- 在Drosophila oogenesis期间边界细胞的迁移提供了一个可处理的模型系统.
研究的目的:
- 为了研究信号通路和分子机制,规范导向细胞迁移在Drosophila oogenesis.
- 确定关键的受体和下游效应因子,参与边界细胞指导.
主要方法:
- 使用Drosophila oogenesis作为一个模型系统.
- 研究了受体氨酸激酶PVR在边界细胞迁移中的作用.
- 研究了PDGF/VEGF因子1 (PVF1) 作为PVR的配体的功能.
- 评估了PVR和表皮生长因子受体 (EGFR) 信号之间的相互作用.
- 分析了Rac及其激活剂Mbc/DOCK180/CED-5的参与.
主要成果:
- PVR是一种受体氨酸激酶,对于引导边界细胞向卵细胞至关重要.
- 卵细胞分泌PVF1,这是PVR的配体.
- 通过PVR介导的指导在很大程度上是对EGFR信号的冗余.
- Rac 和 Rac 激活器 Mbc/DOCK180/CED-5 作为 PVR 指导信号的媒介.
结论:
- 在Drosophila oogenesis期间,PVR信号传递在定向细胞迁移中发挥着重要作用.
- PVR和EGFR之间的冗余凸显了细胞指导中的复杂信号网络.
- Rac和Mbc/DOCK180/CED-5是PVR中介引导路径的关键下游组件.
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