The Migration of Human Smooth Muscle Cells In Vitro Is Mediated by Plasminogen Activation and Can Be Inhibited by α2-Macroglobulin Receptor Associated Protein
The Migration of Human Smooth Muscle Cells In Vitro Is Mediated by Plasminogen Activation and Can Be Inhibited by α2-Macroglobulin Receptor Associated Protein
复制标题
人平滑肌细胞的体外迁移由纤溶酶原激活介导，并可被 α2-巨球蛋白受体相关蛋白抑制
DOI：
10.1055/s-0038-1657646
复制
发表时间：
1997
影响因子：
6.7
通讯作者：
J. Verheijen
中科院分区：
文献类型：
--
作者：
Monique Wijnberg;Paul H.A. Quax;N. Nieuwenbroek;J. Verheijen
Summary The plasminogen activation system is thought to be important in cell migration processes. A role for this system during smooth muscle cell migration after vascular injury has been suggested from several animal studies. However, not much is known about its involvement in human vascular remodelling. We studied the involvement of the plasminogen activation system in human smooth muscle cell migration in more detail using an in vitro wound assay and a matrix invasion assay. Inhibition of plasmin activity or inhibition of urokinase-type plasminogen activator (u-PA) activity resulted in approximately 40% reduction of migration after 24 h in the wound assay and an even stronger reduction (70-80%) in the matrix invasion assay. Migration of smooth muscle cells in the presence of inhibitory antibodies against tissue-type plasminogen activator (t-PA) was not significantly reduced after 24 h, but after 48 h a 30% reduction of migration was observed, whereas in the matrix invasion assay a 50% reduction in invasion was observed already after 24 h. Prevention of the interaction of u-PA with cell surface receptors by addition of soluble u-PA receptor or α2-macroglobulin receptor associated protein (RAP) to the culture medium, resulted in a similar inhibition of migration and invasion. From these results it can be concluded that both u-PA and t-PA mediated plasminogen activation can contribute to in vitro human smooth muscle cell migration and invasion. Furthermore, the interaction between u-PA and its cell surface receptor appears also to be involved in this migration and invasion process. The inhibitory effects on migration and invasion by the addition of RAP suggests an involvement of a RAP sensitive receptor of the LDL receptor family, possibly the LDL-receptor related protein (LRP) and/or the VLDL receptor.
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DOI：
10.1016/s0021-9258(18)31646-6
发表时间：
1994-12
期刊：
The Journal of biological chemistry
影响因子：
--
作者：
Ying‐Ying Wei;David A. Waltz;N. K. Rao;R. Drummond;S. Rosenberg;H. Chapman
通讯作者：
Ying‐Ying Wei;David A. Waltz;N. K. Rao;R. Drummond;S. Rosenberg;H. Chapman
体外损伤后，迁移的血管平滑肌细胞使细胞表面尿激酶受体极化。
影响因子：
3.7
作者：
Okada,SS;Tomaszewski,JE;Barnathan,ES
通讯作者：
Barnathan,ES
影响因子：
20.1
作者：
BENDECK, MP;ZEMPO, N;REIDY, MA
通讯作者：
REIDY, MA
DOI：
10.1016/s0021-9258(19)38651-x
发表时间：
1993-06
期刊：
The Journal of biological chemistry
影响因子：
--
作者：
S. Grobmyer;A. Kuo;M. W. Orishimo;S. S. Okada-S.;D. Cines;E. Barnathan
通讯作者：
S. Grobmyer;A. Kuo;M. W. Orishimo;S. S. Okada-S.;D. Cines;E. Barnathan
动脉粥样硬化中尿激酶受体表达增强。
DOI：
10.1161/01.atv.15.1.37
发表时间：
1995
期刊：
Arteriosclerosis, thrombosis, and vascular biology
影响因子：
--
作者：
Noda-Heiny,H;Daugherty,A;Sobel,BE
通讯作者：
Sobel,BE