CAS |
No.11021-13-9 |
中文名称 |
人参皂苷Rb2(10mM in DMSO,无菌) |
英文名称 |
Ginsenoside Rb2(10mM in DMSO,Sterile) |
分子式 |
C53H90O22 |
分子量 |
1079.28 |
溶解性 |
请根据自己的实验要求使用。 |
外观(性状) |
无菌溶液 |
储存条件 |
Stroe at -20℃,6 months. |
运输条件 |
冷冻运输 |
靶点 |
GPR120 |
通路 |
GPCR & G Protein |
背景说明 |
Ginsenoside Rb2 可以上调 GPR120 基因表达。 |
生物活性 |
Ginsenoside Rb2 is one of the main bioactive components of ginseng extracts. Rb2 can upregulate GPR120 gene expression. Ginsenoside Rb2 has antiviral effects.[1-2] |
In Vitro |
Ginsenoside Rb2 预处理增强了 α-亚麻酸 (ALA) 的抗炎作用,并且增强作用严格依赖于 GPR120 激活。Ginsenoside Rb2 通过增加 GPR120 表达并随后增强 ω-3 脂肪酸诱导的 GPR120 激活,在体外对脂多糖 (LPS) 刺激的小鼠巨噬细胞 RAW264.7 细胞发挥抗炎作用。Ginsenoside Rb2 通过激活 AMPK 改善肝细胞中的葡萄糖代谢,并通过减少氧化损伤降低 3T3-L1 细胞中的胆固醇和三酰甘油水平。Ginsenoside Rb2 在小鼠骨髓间充质干细胞 (BMMSCs) 中发挥抗凋亡作用。MTT 测定结果显示,在存在或不存在 ALA 的情况下,Ginsenoside Rb2 (高达 100 μM) 对 RAW264.7 细胞没有明显的细胞毒性。Ginsenoside Rb2 (0.1-100 μM; 12 h) 剂量依赖性上调 GPR120 的表达。实时 PCR 结果表明,RAW264.7 巨噬细胞与 Ginsenoside Rb2 (10 μM) 孵育 12 小时可导致 GPR120 mRNA 表达增加 2.8 倍。此外,Ginsenoside Rb2 刺激的 GPR120 表达增加是时间依赖性的,早在 6 小时就开始了。这些结果表明 Rb2 在 RAW264.7 巨噬细胞[1]中以剂量和时间依赖的方式上调 GPR120 的表达。 |
In Vivo |
Ginsenoside Rb2 是一种抗病毒试剂,可防止轮状病毒 (RV) 感染。 当在病毒攻击前 3、2 或 1 天施用不同剂量的 Ginsenoside Rb2 (25 至 250 mg/kg) 时,在病毒感染前 3 天以 75 mg/kg 的剂量使用这种人参皂苷治疗最有效地减少轮状病毒 (RV) -引起的腹泻。 此外,在病毒感染前 3、2 和 1 天连续施用 Ginsenoside Rb2 (75 mg/kg) 比在第 3 天单次施用更有效。Ginsenoside Rb2 的连续给药也降低了 RV 感染小鼠肠道中的病毒滴度[2]。 |
细胞实验 |
Cell viability is determined using the MTT assay. RAW264.7 cells (2×104 cells/well) are plated in 96-well plates and cultured overnight in growth medium. The cells are then incubated with Ginsenoside Rb2 (0.1, 1, 10 and 100 μM) at the indicated concentrations in the absence or presence of ALA for 48 h before addition of the MTT reagent (0.5 mg/mL). After incubation for 4 h, the medium is removed, and the formazan crystals formed are dissolved with 100 μL DMSO. Absorbance at a wavelength of 492 nm is measured using a FlexStation 3[1]. |
动物实验 |
Mice[2]Groups of five BALB/c newborn mice are inoculated p.o. with RV-SA11 (1.5×106 plaque-forming units (PFU)/mouse) and administered p.o. with the indicated doses of Ginsenoside Rb2 on the indicated days. In order to examine the protective effect of Ginsenoside Rb2 on RV infection, newborn mice are treated orally with 75 mg/kg of this Ginsenoside 3, 2 or 1 day before RV infection, and the severity of diarrhea of RV-infected mice i calculated. In addition, in an experiment in which various doses of Ginsenoside Rb2 ranging from 25 to 250 mg/kg are administered to mice 3 days before RV infection, Ginsenoside Rb2 at the dose of 75 mg/kg elicits higher protective activity compared to either of the dose of 25 to 250 mg/kg. |
数据来源文献 |
[1]. Huang Q, et al. Ginsenoside Rb2 enhances the anti-inflammatory effect of ω-3 fatty acid in LPS-stimulated RAW264.7 macrophages by upregulating GPR120 expression. Acta Pharmacol Sin. 2017 Feb;38(2):192-200. [2]. Yang H, et al. Ginsenoside-Rb2and 20(S)-Ginsenoside-Rg3 from Koreanred ginseng prevent rotavirus infection in newborn mice. J Microbiol Biotechnol. 2018 Jan 11. |
规格 |
1ml |
单位 |
瓶 |