Vascular endothelial growth factor increases the mitogenic response to fibroblast growth factor-2 in vascular smooth muscle cells in vivo via expression of fms-like tyrosine kinase-1.
Vascular endothelial growth factor increases the mitogenic response to fibroblast growth factor-2 in vascular smooth muscle cells in vivo via expression of fms-like tyrosine kinase-1.
复制标题
血管内皮生长因子通过表达 fms 样酪氨酸激酶 1 来增加体内血管平滑肌细胞对成纤维细胞生长因子 2 的有丝分裂反应。
作者：
Leslie L. Couper;Shane R. Bryant;J. Eldrup;Carl E. Bredenberg;V. Lindner
Vascular endothelial growth factor (VEGF) has traditionally been considered an endothelial cell-specific factor inducing angiogenesis and vascular permeability in vivo. In the present study, expression of VEGF and its receptors, fetal liver kinase-1 (flk-1) and fms-like tyrosine kinase-1 (flt-1), was examined in rat carotid arteries after balloon injury. Although VEGF and flk-1 were not detectable, high levels of flt-1 mRNA and protein were expressed by smooth muscle cells (SMCs) in the neointima, as demonstrated by en face in situ hybridization and Western blotting. Intimal SMC proliferation in chronically denuded rat carotid arteries was unaffected by intraluminal infusion of VEGF, whereas fibroblast growth factor (FGF)-2 increased the number of replicating SMCs 4-fold. Pretreatment with VEGF doubled the mitogenic response to infused FGF-2 by increasing SMC replication in deeper layers of the intima. VEGF increased the permeability of chronically denuded vessels to plasma proteins but had no effect on the uptake of locally infused biotinylated FGF-2. These findings demonstrate that vascular SMCs express functional flt-1 receptors after arterial injury and that VEGF has synergistic effects with FGF-2 on SMC proliferation. These effects are likely to be mediated by a VEGF-mediated increase in permeability as well as a direct interaction between the VEGF and FGF signaling pathways.
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DOI：
--
发表时间：
1997-02
期刊：
Laboratory investigation; a journal of technical methods and pathology
影响因子：
--
作者：
L. Brown;M. Detmar;K. Tognazzi;G. Abu-Jawdeh;Iruela-Arispe Ml
通讯作者：
L. Brown;M. Detmar;K. Tognazzi;G. Abu-Jawdeh;Iruela-Arispe Ml
影响因子：
20.1
作者：
BENDECK, MP;ZEMPO, N;REIDY, MA
通讯作者：
REIDY, MA
动脉损伤的再次损伤会诱导不受成纤维细胞生长因子 2 控制的内膜平滑肌细胞复制。
影响因子：
20.1
作者：
Koyama,H;Reidy,MA
通讯作者：
Reidy,MA
影响因子：
4.4
作者：
A. Koch;A. Koch;L. Harlow;G. K. Haines;E. Amento;E. Unemori;Wei Lee Wong;R. Pope;N. Ferrara
通讯作者：
A. Koch;A. Koch;L. Harlow;G. K. Haines;E. Amento;E. Unemori;Wei Lee Wong;R. Pope;N. Ferrara
影响因子：
56.9
作者：
DEVRIES, C;ESCOBEDO, JA;WILLIAMS, LT
通讯作者：
WILLIAMS, LT