Xanthohumol 是从啤酒花中分离到的黄酮类化合物,是DGAT,COX-1和 COX-2 的抑制剂,具有抗肿瘤,抗血管生成的作用。Xanthohumol 还具有抗牛病毒性腹泻病毒 (BVDV),鼻病毒,HSV-1,HSV-2和 巨细胞病毒 (CMV) 的抗病毒活性。
生物活性 | Xanthohumol is one of the principalflavonoidsisolated from hops, the inhibitor of diacylglycerol acetyltransferase (DGAT),COX-1andCOX-2, and shows anti-cancer and anti-angiogenic activities. Xanthohumol also has antiviral activity againstbovine viral diarrhea virus (BVDV),rhinovirus,HSV-1,HSV-2andcytomegalovirus (CMV). |
IC50& Target[1][2][3][4][5] | COX-1 | COX-2 | HSV-1 | HSV-2 | DGAT1 40 μM (IC50) | DGAT2 40 μM (IC50) | CMV |
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体外研究 (In Vitro) | Xanthohumol significantly attenuates ADP-induced blood platelet aggregation, and significantly reduces the expression of fibrinogen receptor (activated form of GPIIbIIIa) on platelets' surface[1]. Xanthohumol (5-50 nM) reduces the frequency of spontaneously occurring Ca2+sparks and Ca2+waves in control myocytes and in cells subjected to Ca2+overload caused by: (1) exposure to low K+solutions, (2) periods of high frequency electrical stimulation, (3) exposures to isoproterenol or (4) caffeine. Xanthohumol (50-100 nM) reduces the rate of relaxation of electrically- or caffeine-triggered Ca2+transients, without suppressing ICa, but this effect is small and reversed by isoproterenol at physiological temperatures. Xanthohumol also suppresses the Ca2+content of the SR, and its rate of recirculation[2]. Treatment of endothelial cells with Xanthohumol leads to increased AMPK phosphorylation and activity. Functional studies using biochemical approaches confirm that AMPK mediates Xanthohumol anti-angiogenic activity. AMPK activation by Xanthohumol is mediated by CAMMKβ, but not LKB1. Analysis of the downstream mechanisms shows that Xanthohumol-induced AMPK activation reduces nitric oxide (NO) levels in endothelial cells by decreasing eNOS phosphorylation. Finally, AKT pathway is inactivated by Xanthohumol as part of its anti-angiogenic activity, but independently from AMPK, suggesting that these two signaling pathways proceed autonomously[3]. Xanthohumol significantly reduces cell viability and induces apoptosis via pro-caspase-3/8 cleavage and poly(ADP ribose) polymerase (PARP) degradation. Pro-caspase-9 cleavage, Bcl2 family expression changes, mitochondrial dysfunction, and intracellular ROS generation also participate in Xanthohumol-induced glioma cell death. Xanthohumol's inhibition of the IGFBP2/AKT/Bcl2 pathway via miR-204-3p targeting plays a critical role in mediating glioma cell death[4].
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来源 | - Plants
- Moraceae
- Humulus lupulusL.
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运输条件 | Room temperature in continental US; may vary elsewhere. |
储存方式 | Powder | -20°C | 3 years | | 4°C | 2 years | In solvent | -80°C | 6 months | | -20°C | 1 month |
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溶解性数据 | In Vitro: DMSO : 83.33 mg/mL(235.13 mM;Need ultrasonic) 配制储备液 1 mM | 2.8217 mL | 14.1084 mL | 28.2167 mL | 5 mM | 0.5643 mL | 2.8217 mL | 5.6433 mL | 10 mM | 0.2822 mL | 1.4108 mL | 2.8217 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℃, 6 months; -20℃, 1 month。-80℃ 储存时,请在 6 个月内使用,-20℃ 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 (5.87 mM); Clear solution
此方案可获得 ≥ 2.08 mg/mL (5.87 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。 2. 请依序添加每种溶剂: 10% DMSO 90% (20%SBE-β-CDin saline) Solubility: ≥ 2.08 mg/mL (5.87 mM); Clear solution
此方案可获得 ≥ 2.08 mg/mL (5.87 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 μL20% 的 SBE-β-CD 生理盐水水溶液中,混合均匀。 *以上所有助溶剂都可在本网站选购。
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