"三个信号 - 三个车身轴"作为双边关系中的模式原则
Christof Niehrs1, Ettore Zapparoli2, Hyeyoon Lee3
1Division of Molecular Embryology, DKFZ-ZMBH Alliance, Deutsches Krebsforschungszentrum (DKFZ), 69120 Heidelberg, Germany; Institute of Molecular Biology (IMB), 55128 Mainz, Germany.
Cells & development
|August 9, 2024
概括
脊椎动物的身体轴 (前后,背中,左右) 是通过信号梯度形成的. 一个统一的原则表明,反FGF,反BMP和反Wnt信号控制了这些轴,整合了开发.
科学领域:
- 发育生物学是发展生物学.
- 进化发育生物学 进化发育生物学
- 分子生物学分子生物学
背景情况:
- 脊椎动物的身体轴 (前后,背中,左右) 在胃细胞和神经细胞阶段建立.
- 轴形成涉及生长因子 (Wnt,BMP) 和对抗剂 (Dkk1,Chordin) 之间的保留相互作用,创造信号梯度.
- 在Xenopus中,左向右的模式涉及R-spondin 2 (Rspo2),一个FGF对手,形成信号梯度.
研究的目的:
- 提出一个统一的原则,以形成脊椎动物的三个直角的身体轴.
- 探索信号梯度在整体车身轴图案中的作用.
- 假设Urbilateria体轴决定的祖先状态.
主要方法:
- 对脊椎动物的轴向模式进行现有研究的审查和综合.
- 对参与前后后,背中和左右轴的信号通路进行比较分析.
- 信号梯度相互作用的概念建模.
主要成果:
- 反FGF,反BMP和反Wnt信号的三元组分别控制左右,背中和前后轴的形成.
- 这些信号通路之间的交叉通话整合了身体轴模式,有助于发育强度和尺寸缩放.
- 这些发现表明,在祖先Urbilateria中,直角信号梯度的笛卡尔坐标系.
结论:
- 抗FGF,抗BMP和抗Wnt信号的相互作用为脊椎动物的身体轴形成提供了一个统一的机制.
- 综合信号赋予了和的调节,发育强度和尺寸扩展.
- 拟议的模型提供了对身体规划组织的演变的见解.
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