alpha-actin-1

Ac-Ala-OH (N-Acetyl-L-alanine) 是鸟嘌呤核苷酸结合蛋白G(I) G(S) G(O) γ -2亚基、髓鞘碱性蛋白、GTP-结合核蛋白 Ran、原肌球蛋白 α - 4链、HIV-1 Rev 结合蛋白2、Xaa-Pro 二肽酶、胸腺酶 β -10、肌动蛋白样蛋白3、丙氨酸转氨酶、丝氨酸 苏氨酸蛋白磷酸酶PP1 - β催化亚基、10 kda 热休克蛋白(线粒体)、钙调蛋白和 β -1-syntrophin 的底物。

alpha-Cyperone (α-Cyperone) 与 IL-6, Cox-2, Cdc42, Nck-2, Rac1 的表达下调相关,从而能够抑制炎症反应。

The growth factors, platelet-derived growth factor (PDGF) and basic fibroblast growth factor (bFGF) play major roles in enhanced smooth muscle cells growth in rodent blood vessels after vascular injury. Tyrosine kinase inhibition has been shown to be effective in blocking tyrosine phosphorylation at the PDGF and bFGF receptors in cultured fibroblast and vascular smooth muscle cells which in turn inhibits their proliferation[1]. CGP 53716 is a specific PDGFR tyrosine kinase inhibitor on SMC (smooth muscle cell) proliferation and migration in vitro and in neointimal formationin vivo[3]. CGP 53716 inhibited serum-induced cell growth in RASMC (rat aortic smooth muscle cells). And it completely blocked PDGF-BB tyrosine receptor autophosphorylation in RASMC and 3T3 cells, PDGF-BB-induced phosphorylation of mitogen-activated protein kinase at 1 μM in RASMC and inhibited PDGF-BB-induced c-Fos protein expression at 1 μM in RASMC; consistent with inhibition of PDGF-BB-induced DNA synthesis. Further, CGP 53716 inhibited PDGF-BB-, bFGF- and EGF-induced DNA synthesis in a concentration-dependent manner in each cell line. And it showed a 2- to 4-fold selectivity for PDGF-BB-stimulated DNA synthesis over bFGF or EGF in RASMC or 3T3 cells[1]. CGP 53716 inhibited dose dependently tyrosine phosphorylation of both the known PDGFRs: the PDGFR-α and PDGFR-β. After rat carotid artery ballooning injuryin vivo, the migration of alpha-actin-positive cells on the luminal side of internal elastic lamina was decreased with 50 mg kg day of CGP 53716 from 38 ± 10 (control group) to 4 ± 2. Intima media ratio was inhibited by 40% after 14 days in the CGP 53716-treated group (P=0.028) after rat aortic denudation[3].