| Description | Miquelianin (Quercetin 3-glucuronide) is a potent stilbene oxidase inhibitor, it has antioxidant, anti-atherogenic, and anti-inflammatory activities. |
| In vitro | 体外研究表明，miquelianin能够从小肠进入中枢神经系统[1]。在人体血浆中，miquelianin展现出抗氧化作用。50 μM 浓度下，miquelianin显著抑制了番茄红素、β-胡萝卜素和α-生育酚（三种抗氧化剂）的消耗[2]。miquelianin能显著降低Tg2576阿尔茨海默病（AD）小鼠模型初级神经元培养产生的β-淀粉样肽（Aβ）的生成，并且能够干扰Aβ1–40与Aβ1–42的最初蛋白-蛋白相互作用[3]。0.1 μM miquelianin处理能够抑制活性氧（ROS）的产生、cAMP和RAS的激活、ERK1/2的磷酸化以及HMOX1、MMP2和MMP9基因的表达。miquelianin抑制MDA-MB-231乳腺癌细胞的侵袭、MMP-9的诱导，并且抑制了[3H]-NA对b2-AR的结合[4]。 |
| In vivo | Miquelianin处理相比于载体对照处理，显著改善了海马形成区基底突触传输和长期增强方面的AD型缺陷[3]。 |
| Synonyms | 槲皮素-3-O-葡萄糖醛酸苷, Quercetin 3-glucuronide, Quercetin 3-O-glucuronide |
| molecular weight | 478.36 |
| Molecular formula | C21H18O13 |
| CAS | 22688-79-5 |
| Storage | keep away from direct sunlight | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| Solubility | DMSO: 30 mg/mL (62.71 mM) |
| References | 1. Terao J, e al. Protection by quercetin and quercetin 3-O-beta-D-glucuronide of peroxynitrite-induced antioxidant consumption in human plasma low-density lipoprotein. Free Radic Res. 2001 Dec;35(6):925-31. 2. Juergenliemk G, et al. In vitro studies indicate that miquelianin (quercetin 3-O-beta-D-glucuronopyranoside) is able to reach the CNS from the small intestine. Planta Med. 2003 Nov;69(11):1013-7. 3. Butterweck V, et al. Flavonoids from Hypericum perforatum show antidepressant activity in the forced swimming test. Planta Med. 2000 Feb;66(1):3-6. 4. Yamazaki S, et al. Quercetin-3-O-glucuronide inhibits noradrenaline-promoted invasion of MDA-MB-231 human breast cancer cells by blocking β?-adrenergic signaling. Arch Biochem Biophys. 2014 Sep 1;557:18-27. |