Rhapontigenin(Synonyms: 丹叶大黄素)

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Rhapontigenin (Synonyms: 丹叶大黄素) 纯度: 99.66%

Rhapontigenin 是白藜芦醇的天然类似物,具有抗癌,抗氧化剂,抗真菌和抗菌活性。 Rhapontigenin 是强效选择性细胞色素 P450 1A1 抑制剂 (IC50=400 nM)。Rhapontigenin 对 P450 1A1 的选择性分别是 P450 1A2 和 P450 1B1 的 400 和 23 倍。

Rhapontigenin(Synonyms: 丹叶大黄素)

Rhapontigenin Chemical Structure

CAS No. : 500-65-2

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生物活性

Rhapontigenin is a natural analog of resveratrol with anticancer, antioxidant, antifungal and antibacterial activities. Rhapontigenin is amechanism-based, potent and selective cytochrome P450 1A1 inactivator (IC50  = 400 nM). Rhapontigenin exhibits 400-fold and 23-fold selectivity for P450 1A1 over P450 1A2 and P450 1B1, respectively[1].

IC50 & Target[1]

CYP1A1

400 nM (IC50)

体外研究
(In Vitro)

Rhapontigenin (0-250 μM; 24 hours) demonstrates concentration-dependent anti-cancer activity with an IC50 115μM in HEP G2 cells[1].
Rhapontigenin (20 μM; 20 hours) pre-treatment decreases TGF-β triggered increased snail expression in diverse cancer cells[2].
Rhapontigenin (0-20 μM; 6 hours) inhibits TGF-β-induced expression of N-cadherin, vimentin, and CA9 in a dose-dependent manner[2].
Rhapontigenin inhibits ADP- and collagen-induced platelet aggregation with IC50 values of 4 and 70 μg/ml, respectively[3].
Rhapontigenin demonstrates a strong inhibitory activity on the 13-hexosaminidase release induced by DNP-BSA, it exhibits IC50 value of 0.03 mM in RBL 2H3 cells[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Western Blot Analysis[2]

Cell Line: HeLa, A549,769-P cells
Concentration: 0 μM; 2.5 μM; 5 μM; 10 μM; 20 μM
Incubation Time: 6 hours
Result: Induced ubiquitination and degradation of HIF-1α.

体内研究
(In Vivo)

Rhapontigenin (intraperitoneal injection; 25mg/kg) shows significant protection from death due to pulmonary thrombosis in mice, those samples are orally administered 90 min before tail vein injection of epinephrine and collagen[3].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: ICR mice[3]
Dosage: 25mg/kg
Administration: 25mg/kg; intraperitoneal injection
Result: Showed anti-thrombosis activity with 60% protection.

分子量

258.27

Formula

C15H14O4

CAS 号

500-65-2

中文名称

丹叶大黄素

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

溶解性数据
In Vitro: 

DMSO : 125 mg/mL (483.99 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 3.8719 mL 19.3596 mL 38.7192 mL
5 mM 0.7744 mL 3.8719 mL 7.7438 mL
10 mM 0.3872 mL 1.9360 mL 3.8719 mL

*

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 (protect from light)。-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:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 1.

    请依序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.08 mg/mL (8.05 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (8.05 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH₂O 中,得到澄清透明的生理盐水溶液

  • 2.

    请依序添加每种溶剂: 10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.08 mg/mL (8.05 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (8.05 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。

    将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中,再用生理盐水定容至 10 mL,完全溶解,澄清透明
*以上所有助溶剂都可在 上海金畔生物科技有限公司 网站选购。
参考文献
  • [1]. Roupe KA, et al. Preparative enzymatic synthesis and HPLC analysis of rhapontigenin: applications to metabolism, pharmacokinetics and anti-cancer studies.J Pharm Pharm Sci. 2005 Aug 22;8(3):374-86.

    [2]. Yeh YH, et al. Rhapontigenin inhibits TGF-β-mediated epithelial‑mesenchymal transition via the PI3K/AKT/mTOR pathway and is not associated with HIF-1α degradation.Oncol Rep. 2016 May;35(5):2887-95.

    [3]. Park EK, et al. Antithrombotic and antiallergic activities of rhaponticin from Rhei Rhizoma are activated by human intestinal bacteria.Arch Pharm Res. 2002 Aug;25(4):528-33.

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