Vascular endothelial growth factor signaling requires glycine to promote angiogenesis.

Vascular endothelial growth factor signaling requires glycine to promote angiogenesis.
复制标题

血管内皮生长因子信号传导需要甘氨酸来促进血管生成

DOI:
10.1038/s41598-017-15246-3
复制
发表时间:
2017-11-07
期刊:
影响因子:
4.6
通讯作者:
Gu Y
Gu Y
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Guo D;Murdoch CE;Xu H;Shi H;Duan DD;Ahmed A;Gu Y

文献摘要

参考文献

被引文献

相似文献

周围血管闭塞性疾病(PVOD)是动脉粥样硬化的常见表现,发病率高。治疗性血管生成将重新建立血液灌注并拯救缺血组织。血管内皮生长因子(VEGF)诱导血管生成,并可潜在地用于治疗缺血性疾病,但在临床试验中,VEGF尚未发挥其全部潜力,具有副作用。氨基酸是否促进血管生成及其分子机制尚不清楚。本研究表明:(1)甘氨酸在体外和体内均能显著促进血管生成,并有效保护线粒体功能。(2)由VEGF诱导的甘氨酸转运蛋白1(GlyT 1)的激活导致细胞内甘氨酸的增加。(3)甘氨酸直接与线粒体外膜上的电压依赖性阴离子通道1(VDAC 1)结合,并抑制其开放。这些原始结果强调了甘氨酸是通过GlyT 1-甘氨酸-mTOR-VDAC 1轴途径进行VEGF信号传导的必要介质。因此,本研究的发现对于血管生成提供了新的机制见解,并提供了更好地理解甘氨酸在血管生成中的功能,这可能为开发用于治疗血管生成性血管疾病的新的治疗靶点提供有价值的信息。
Peripheral vascular occlusive disease (PVOD) is a common manifestation of atherosclerosis, and it has a high rate of morbidity. Therapeutic angiogenesis would re-establish blood perfusion and rescue ischemic tissue. Vascular endothelial growth factor (VEGF) induces angiogenesis and can potentially be used to treat ischemic diseases, yet in clinical trials VEGF has not fulfilled its full potential with side effects. Whether amino acids promote angiogenesis and the molecular mechanisms are largely unknown. Here we showed that (1) Glycine significantly promoted angiogenesis bothin vitroandin vivoand effectively protected mitochondrial function. (2) Activation of glycine transporter 1(GlyT1) induced by VEGF led to an increase in intracellular glycine. (3) Glycine directly bounded to voltage dependent anion channel 1 (VDAC1) on the mitochondrial outer membrane and inhibited its opening. These original results highlight glycine as a necessary mediator in VEGF signalling via the GlyT1-glycine-mTOR-VDAC1 axis pathway. Therefore, the findings in this study are of significance providing new mechanistic insights into angiogenesis and providing better understanding of glycine function in angiogenesis, which may provide valuable information for development of novel therapeutic targets for the treatment of angiogenic vascular disorders.
DOI: 10.1074/jbc.m113.517219
发表时间: 2014-03-21
影响因子: 4.8
作者:
Murdoch, Colin E.;Shuler, Michaela;Matsui, Reiko
通讯作者: Matsui, Reiko
DOI: 10.1038/onc.2008.63
发表时间: 2008-07-01
期刊: ONCOGENE
影响因子: 8
作者:
Tajeddine, N.;Galluzzi, L.;Kroemer, G.
通讯作者: Kroemer, G.
DOI: 10.1016/s1532-0456(03)00046-2
发表时间: 2003-04-01
影响因子: 3.9
作者:
Alvarado-Vásquez, N;Zamudio, P;Carvajal-Sandoval, G
通讯作者: Carvajal-Sandoval, G
DOI: 10.1016/j.cell.2013.06.037
发表时间: 2013-08-01
期刊: CELL
影响因子: 64.5
作者:
De Bock, Katrien;Georgiadou, Maria;Carmeliet, Peter
通讯作者: Carmeliet, Peter
DOI: 10.1084/jem.180.3.1141
发表时间: 1994-09-01
期刊: The Journal of experimental medicine
影响因子: --
作者:
Detmar M;Brown LF;Claffey KP;Yeo KT;Kocher O;Jackman RW;Berse B;Dvorak HF
通讯作者: Dvorak HF