Boc 是一个用于指导 commissural 轴突中的 sonic hedgehog 的受体
Ami Okada1, Frédéric Charron, Steves Morin
1Department of Biological Sciences, Stanford University, Stanford, California 94305, USA. amio@stanford.edu
Nature
|November 7, 2006
概括
这项研究确定了Boc作为Sonic hedgehog (Shh) 在指导脊髓中指挥轴突中的关键受体. 破坏Boc导致轴突误导,突出其在神经发育中的重要作用.
科学领域:
- 神经科学是一个神经科学.
- 发育生物学 发展生物学
- 分子生物学分子生物学
背景情况:
- 声波刺 (Shh) 对于腹部神经元发育和脊髓中 commissural轴突引导至关重要.
- Shh作为中线衍生的化学吸引剂作用于 commissural 轴突,但其受体仍然未被确定.
研究的目的:
- 确定负责Shh介导的 commissural轴突的化学吸引的受体.
- 研究机器人相关蛋白质Boc和Cdon作为潜在的SHH受体的作用.
主要方法:
- 蛋白结合试验测试Shh与Boc和Cdon的相互作用.
- 在小鼠中对Boc的遗传破坏,以观察对 commissural轴突指导的影响.
- 在实验室中对老鼠轴突中的Boc进行敲击,以评估对Shh梯度的反应.
主要成果:
- 发现Boc和Cdon特别与Shh结合,将它们确定为候选受体.
- 在小鼠中针对性地破坏Boc,导致 commissural轴突向地板误导.
- Knockdown of Boc 损害了老鼠 commissural 轴突对 Shh 的化学吸引反应.
结论:
- 在指导 commissural 轴突的背景下,Boc 作为 Shh 的必不可少的受体起作用.
- 这些发现阐明了脊髓中神经电路形成的关键分子机制.
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