platelet factor 4

Platelet factor 4 (59-70) elicits human neutrophil & monocyte chemotaxis.

Platelet Factor 4 (58-70), human is a polypeptide based on the 58-70 amino acid sequence of Platelet Factor 4 (pf-4) residues.

AG 1295 是选择性血小板衍生生长因子受体酪氨酸激酶抑制剂。它能抑制 PDGFR 的自磷酸化，对 EGF 受体的自磷酸化无影响。

Benafentrine dimaleate is a platelet activating factor receptor (PAFR) antagonists and phosphodiesterase (PDE) 3 4 inhibitors.

JI-101 (CGI-1842) 是一种有口服活性的多靶点激酶抑制剂，能够抑制VEGFR2，PDGFRβ和EphB4，具有抗癌作用。

Collinin is a coumarin that has been found in Z. schinifolium and has diverse biological activities.1,2,3,4 It is active against drug-susceptible and -resistant strains of M. tuberculosis (MIC50s = 3.13-6.25 μg/ml).1 Collinin inhibits LPS-induced nitric oxide (NO) production (IC50 = 5.9 μM) and reduces COX-2 protein levels in RAW 264.7 cells.2 It completely inhibits aggregation of isolated rabbit platelets induced by arachidonic acid , collagen, or platelet activating factor (PAF) when used at a concentration of 100 μM.3 Dietary administration of collinin (0.05% w/w) reduces the number of mice with tumors and the number of tumors per mouse in a mouse model of colitis-related carcinogenesis.4 |1. Kim, S., Seo, H., Al Mahmud, H., et al. In vitro activity of collinin isolated from the leaves of Zanthoxylum schinifolium against multidrug- and extensively drug-resistant Mycobacterium tuberculosis. Phytomedicine 46, 104-110 (2018).|2. Nguyen, P.-H., Zhao, B.T., Kim, O., et al. Anti-inflammatory terpenylated coumarins from the leaves of Zanthoxylum schinifolium with α-glucosidase inhibitory activity. J. Nat. Med. 70(2), 276-281 (2016).|3. I.S., C., Lin, Y.C., Tsai, I.L., et al. Coumarins and anti-platelet aggregation constituents from Zanthoxylum schinifolium. Phytochemistry 39(5), 1091-1097 (1995).|4. Kohno, H., Suzuki, R., Curini, M., et al. Dietary administration with prenyloxycoumarins, auraptene and collinin, inhibits colitis-related colon carcinogenesis in mice. Int. J. Cancer 118(12), 2936-2942 (2006).

β-Chamigrenal has anti-inflammatory activity, it has inhibitory effects on lipopolysaccharide-induced nitric oxide and prostaglandin E2 production in RAW 264.7 macrophages. Chamigrenal shows platelet-activating factor antagonistic activity and the IC(50)

Ki20227 是一种高效的、口服具有活性的、选择性的CSF1R(c-Fms 酪氨酸激酶)抑制剂，对 CSF1R，VEGFR2，c-Kit 和PDGFRβ的IC50分别为 2 nM，12 nM，451 nM 和 217 nM。它可以阻止破骨细胞分化和溶骨性破坏。

Lp-PLA2-IN-4 是有效的脂蛋白相关磷脂酶 A2 (Lp-PLA2) 抑制剂。其中 Lp-PLA2 曾经被称作血小板活化因子乙酰水解酶 (PAF-AH)，是参与脂蛋白脂质或磷脂水解的磷脂酶 A2。Lp-PLA2-IN-4 具有潜力进行 Lp-PLA2 活性相关的疾病的研究，如阿尔茨海默病 、动脉粥样硬化。

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].

P4pal10 TFA 是 P4pal10 的三氟乙酸(TFA) 盐状态.作为蛋白酶激活受体 4 (PAR4) 的拮抗剂,它能有效地抑制血小板的聚集以及组织因子 (TF) 诱导的凝血酶生成,展示出显著的抗凝和抗血栓效果.此外,P4pal10 TFA 在减轻 Carrageenan 诱发的水肿和粒细胞浸润方面表现出良好的活性,并能改善大鼠心肌缺血 再灌注 (I R) 模型中的组织损伤.