PFKFB3驱动的糖解在容器发芽中的作用
Katrien De Bock1, Maria Georgiadou, Sandra Schoors
1Laboratory of Angiogenesis and Neurovascular Link, Vesalius Research Center, Department of Oncology, University of Leuven, Leuven 3000, Belgium.
Cell
|August 6, 2013
概括
内皮细胞 (ECs) 使用糖解来获得能量,激活剂PFKFB3对于新血管形成至关重要. 这种糖溶性通路调节了EC的增殖,迁移和血管分支.
科学领域:
- 细胞生物学 细胞生物学
- 代谢调节 代谢调节 代谢调节
- 血管新生的产生.
背景情况:
- 血管发芽对于发育和疾病至关重要.
- 像诺奇这样的遗传信号调节了内皮细胞 (EC) 的行为.
- 细胞代谢在EC驱动的血管生成中的作用仍然不清楚.
研究的目的:
- 研究细胞代谢,特别是糖解在血管生成过程中调节内皮细胞功能的作用.
- 为了确定糖解酶PFKFB3是否影响EC增殖,迁移和容器发芽.
主要方法:
- 评估了EC中的ATP产量,比较了糖解和氧化酸化.
- 使用基因操纵来改变EC中的PFKFB3水平.
- 进行了体外和体内生长的芽试验.
- 研究了PFKFB3与F-actin在运动突起中的相互作用.
- 检查了PFKFB3和Notch信号之间的相互作用.
主要成果:
- 内皮细胞优先使用糖解而不是氧化酸化来产生ATP.
- 在EC中丧失PFKFB3显著损害了船形形成.
- PFKFB3调节了EC的增殖,类/类的形成和方向迁移.
- PFKFB3与F-actin在运动突起中进行细分,影响细胞运动.
- 过度表达PFKFB3可以覆盖Notch介导的亲茎活动.
- 当Notch信号被阻止时,PFKFB3缺乏会阻碍尖端细胞的形成.
结论:
- 糖解是一种关键的代谢途径,调节血管生成.
- PFKFB3是内皮细胞增殖,迁移和血管发芽的关键代谢调节剂.
- 通过PFKFB3进行代谢控制与基因路径交叉,例如Notch,以控制血管分支.
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