通过信号序列衍生来调节血管生成
bioRxiv : the preprint server for biology
|September 4, 2024
概括
含有2 (DCBLD2) 信号序列 (SS) 的神经类,迪斯科伊丁,CUB和LCCL域与VEGFR2相互作用,促进VEGF信号和血管生成. 来自DCBLD2 SS的合成显示了血管生成调节的治疗潜力.
科学领域:
- 分子生物学分子生物学
- 细胞信号传输 细胞信号传输
- 血管新生研究研究
背景情况:
- DCBLD2是一种与VEGFR2相互作用的跨膜蛋白,调节VEGF诱导的信号和血管生成.
- DCBLD2与VEGFR2相互作用的确切机制尚不清楚.
- DCBLD2具有异常长的信号序列 (SS),具有明显的N终端,过渡 (tra) 和C终端子域.
研究的目的:
- 确定DCBLD2参与VEGFR2相互作用的特定域.
- 阐明DCBLD2信号序列 (SS) 在调节VEGF信号和血管生成中的作用.
- 探索DCBLD2衍生的的治疗潜力.
主要方法:
- 为共同免疫沉和信号研究生成了各种DCBLD2域结构.
- 基于已识别的DCBLD2域合成的.
- 通过细胞培养,母塞,角膜微袋和后肢缺血模型在体外和体内评估对VEGF信号传递的影响.
主要成果:
- DCBLD2 SS与VEGFR2直接相互作用,并促进了VEGF信号传递.
- SS的疏水性"traC"段,而不是"N"子域,对于VEGFR2相互作用至关重要.
- 模仿traC段的合成增强了VEGF信号传递,促进了体内血管生成,并在小鼠模型中改善了血液流量恢复.
结论:
- DCBLD2 SS及其衍生可以增强VEGFR2信号传递和血管生成.
- 基于DCBLD2 SS的合成代表了血管生成调节的有前途的治疗剂.
- 这些发现揭示了信号序列在细胞信号传输中的新角色,不仅仅是准.
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