Powder: -20°C for 3 years | In solvent: -80°C for 1 year
Questiomycin A 是一种在鲜奶油中生产的抗生素,具有抗菌和抗癌活性。 Questiomycin A 抑制细胞保护性 ER 伴侣蛋白 GRP78 的表达。
规格 | 价格/CNY | 货期 | 数量 | |
---|---|---|---|---|
10 mg | ¥ 429 | 现货 | ||
25 mg | ¥ 774 | 现货 | ||
50 mg | ¥ 1,117 | 现货 | ||
100 mg | ¥ 1,578 | 现货 | ||
200 mg | ¥ 2,255 | 现货 |
产品描述 | Questiomycin A is an antibiotic produced in crème fraiche with antibacterial and anticancer activities. Questiomycin A suppresses expression of GRP78, a cell-protective ER chaperone protein. |
体外活性 | Questiomycin A reduces the increased intracellular pH in a variety of cancer cell lines, as well as in HUVECs and HELs[2]. Questiomycin A is cytotoxic to a variety of cancer cells, including MCF-7, A549, MIA PaCa-2, and LoVo-1 cells (IC50s = 1.67, 5.48, 7.16, and 20.03 μM, respectively) as well as human umbilical vein endothelial cells (HUVECs) but not human embryonic lung fibroblast cells (HELs; IC50s = 16.06 and >50 μM, respectively)[5]. |
体内活性 | The anti-metastatic effects of Questiomycin A were investigated in C56BL/6 mice. When B16 melanoma cells were injected into the tail veins of mice, significant metastasis of the cells was indicated in the lungs, 14 days after treatment. In contrast, when 0.5 mg/kg Questiomycin A was administered to mice through the tail veins, once simultaneously with or every three days after the administration of B16 melanoma cells, the number of metastasized pulmonary cells was extremely reduced. Moderate reduction of the number of metastasized pulmonary cells was indicated in the mice with a single dose of Questiomycin A on day 3 after injection of the cells. However, when Questiomycin A was administered in a single dose, 6 or 9 days after the injection of the cells, the number of metastasized pulmonary cells remained the same. The metastasis of mouse B16 melanoma cells to the lung was significantly inhibited in mice administered Questiomycin A, which activated the intrinsic and extrinsic apoptotic pathways[3]. |
分子量 | 212.2 |
分子式 | C12H8N2O2 |
CAS No. | 1916-59-2 |
Powder: -20°C for 3 years | In solvent: -80°C for 1 year
DMSO: 3 mg/mL
DMF: 2 mg/mL
DMSO:PBS (pH 7.2) (1:20): 0.04 mg/mL
对于不同动物的给药剂量换算,您也可以参考 更多...
请在以下方框中输入您的动物实验信息后点击计算,可以得到母液配置方法和体内配方的制备方法: 比如您的给药剂量是10 mg/kg,每只动物体重20 g,给药体积100 μL,一共给药动物10 只,您使用的配方为5% DMSO+30% PEG300+5% Tween 80+60% ddH2O。那么您的工作液浓度为2 mg/mL。
母液配置方法:2 mg 药物溶于 50 μL DMSO (母液浓度为 40 mg/mL), 如您需要配置的浓度超过该产品的溶解度,请先与我们联系。
体内配方的制备方法:取 50 μL DMSO 主液,加入 300 μL PEG300, 混匀澄清,再加 50 μL Tween 80,混匀澄清,再加 600 μL ddH2O, 混匀澄清。
您可能有的问题的答案可以在抑制剂处理说明中找到,包括如何准备库存溶液,如何存储产品,以及基于细胞的分析和动物实验需要特别注意的问题。
Questiomycin A 1916-59-2 Endocrinology/Hormones GPCR/G Protein Microbiology/Virology GPR Antibacterial Inhibitor inhibitor inhibit