被删除的结肠直肠癌 (DCC) 编码了一个网氨酸受体
K Keino-Masu1, M Masu, L Hinck
1Howard Hughes Medical Institute, Department of Anatomy, University of California, San Francisco 94143-0452, USA.
Cell
|October 18, 1996
概括
大肠直肠癌 (DCC) 作为netrin-1的受体,指导脊髓中发展的指导性轴突. 这一发现揭示了神经发育和轴突引导中的关键机制.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 发展生物学 发展生物学
背景情况:
- 轴指导对于神经系统发育至关重要.
- 扩散性化学吸引剂调解了轴突路径的发现.
- 网氨酸是众所周知的化学吸引剂,用于 commissural 轴突.
研究的目的:
- 为了阐明网林-1化学吸引的机制.
- 为了识别 commissural 轴突上的 netrin-1 的受体.
主要方法:
- 在脊柱 commissural轴突上对DCC表达的免疫组织化学分析.
- 试验室试验测试DCC的网林-1结合活性.
- 使用对DCC的抗体来抑制轴突外生长的阻断实验.
主要成果:
- 被删除的结肠直肠癌 (DCC) 是表达在脊柱 commissural轴突上.
- DCC与网-1结合在一起.
- 抗体介导的DCC阻断抑制了依赖网林-1的轴突外生长.
结论:
- DCC作为网-1的受体起作用.
- DCC 调解了 netrin-1 的指导 commissural 轴突的过程.
- 这种相互作用对脊椎动物脊髓发育至关重要.
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