生物活性
Notoginsenoside Ft1 is a saponin isolated from Panax notoginseng; stimulator of angiogenesis. IC50 value: Target: angiogenesis stimulator in vitro: Ft1 increases translocalization of hypoxia-inducible factor-1α (HIF-1α) from cytoplasm to nuclei, where it binds to the vascular endothelial growth factor (VEGF) promoter, increasing the expression of VEGF mRNA and the subsequent secretion of the growth factor. Ft1 induces the activation of PI3K/AKT and Raf/MEK/ERK signaling pathways [1]. Among the saponins examined, Ft1 was the most potent procoagulant and induced dose-dependent platelet aggregation. Ft1 reduced plasma coagulation indexes, decreased tail bleeding time and increased thrombogenesis. Moreover, it potentiated ADP-induced platelet aggregation and increased cytosolic Ca(2+) accumulation, effects that were attenuated by clopidogrel. Ft1 binds to platelet P2Y12 receptors. The increase in intracellular Ca(2+) evoked by Ft1 in HEK293 cells overexpressing P2Y12 receptors could be blocked by ticagrelor [2]. Ft1 caused endothelium-dependent relaxations, which were abolished by l-NAME (inhibitor of nitric oxide synthases) and ODQ (inhibitor of soluble guanylyl cyclase). Ft1 increased the cGMP level in rat mesenteric arteries. GR and ER were present in the endothelial layer and their antagonism by RU486 and PHTPP, respectively, inhibited Ft1-induced endothelium-dependent relaxations and phosphorylations of eNOS, Akt and ERK1/2 [3]. Ft1 showed the best inhibitory effect on cell proliferation of SH-SY5Y cells with IC50 of 45μM. Ft1 not only arrested the cell cycle at S, G2/M stages, but also promoted cell apoptosis. Ft1 up-regulated the protein expressions of cleaved caspase 3, phospho-p53, p21, and cyclin B1, but down-regulated that of Bcl-2. Moreover, Ft1 enhanced the phosphorylation of ERK1/2, JNK and p38 MAPK [4]. in vivo: Ft1 promotes the formation of blood vessels in Matrigel plug and wound healing in mice [1].
分子量
917.13
性状
Solid
Formula
C47H80O17
CAS 号
155683-00-4
中文名称
三七皂甙 Ft1
结构分类
TerpenoidsTriterpenes
来源
PlantsAraliaceaePanax notoginseng
运输条件
Room temperature in continental US; may vary elsewhere.
溶解性数据
In Vitro:
DMSO : 6.67 mg/mL (7.27 mM; Need ultrasonic)
配制储备液
浓度溶剂体积质量 1 mg 5 mg 10 mg
1 mM 1.0904 mL 5.4518 mL 10.9036 mL
5 mM 0.2181 mL 1.0904 mL 2.1807 mL
10 mM --- --- ---
*
请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液;一旦配成溶液,请分装保存,避免反复冻融造成的产品失效。
储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month (stored under nitrogen)。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。
In Vivo:
请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 方式配制澄清的储备液,再依次添加助溶剂: