Diosmetin
mRNA synthesis
In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
Tyramide Signal Amplification (TSA)
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Phos Binding Reagent Acrylamide
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
Cell Counting Kit-8 (CCK-8)
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
SYBR Safe DNA Gel Stain
Safe and sensitive stain for visualization of DNA or RNA in agarose or acrylamide gels.
Inhibitor Cocktails
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
Diosmetin (DIO)是芳香烃受体(AHR)的激动剂。它以剂量依赖的方式有效抑制细胞色素P4501A1(CYP1A1)的酶活性,在MCF-7细胞的微粒中的IC50值大约为30 nM[1]。
AHR属于Per、ARNT、Sim/basic-helix-loop-helix配体激活的转录因子家族。 AHR介导多环芳香烃、2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD)和多氯联苯的毒性作用。这些化合物结合AHR,并导致一系列基因的活化,其中包括细胞色素P450 CYP1A1、CYP1A2和CYP1B1 [2]。
在MCF-7细胞中,diosmetin孵育24小时后,CYP1A1 的mRNA以剂量依赖方式增加。在MCF-7细胞中,2.5 μM的diosmetin适当的增加了CYP1A1酶的活性,并增加细胞活力,与对照组细胞相比,5 μM的香叶木素没有增加酶活性。与对照组相比,diosmetin以剂量依赖性方式增加核提取物结合含CYP1A1的AhR结合序列的寡核苷酸[1]。
在CYP1A抑制剂存在的条件下,diosmetin的浓度范围从0小时的25 μM至22 μM。在不存在CYP1A抑制剂条件下,diosmetin的浓度从0小时的25 μM至15 μM[3]。
目前没有diosmetin的在体实验结果。
参考文献:
[1]. Ciolino HP, Wang TT and Yeh GC. Diosmin and diosmetin are agonists of the aryl hydrocarbon receptor that differentially affect cytochrome P450 1A1 activity. Cancer Res, 1998, 58(13):2754-60.
[2]. Gonzalez FJ and Fernandez-Salguero P. The Aryl Hydrocarbon Rreceptor Studies Using the AHR-Null Mice. Drug Metabolism and Disposition, 1998, 26(12): 1194-1198.
[3]. Androutsopoulos VP and Spandidos DA. The flavonoids diosmetin and luteolin exert synergistic cytostatic effects in human hepatoma HepG2 cells via CYP1A-catalyzed metabolism, activation of JNK and ERK and P53/P21 up-regulation. J Nutr Biochem, 2013, 24(2):496-504.
Physical Appearance | A solid |
Storage | Store at -20°C |
M.Wt | 300.26 |
Cas No. | 520-34-3 |
Formula | C16H12O6 |
Solubility | insoluble in H2O; ≥13.65 mg/mL in DMSO; ≥2.4 mg/mL in EtOH with ultrasonic |
Chemical Name | 5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-4H-chromen-4-one |
SDF | Download SDF |
Canonical SMILES | COC1=C(O)C=C(C2=CC(C3=C(O)C=C(O)C=C3O2)=O)C=C1 |
运输条件 | 蓝冰运输或根据您的需求运输。 |
一般建议 | 不同厂家不同批次产品溶解度各有差异,仅做参考。若实验所需浓度过大至产品溶解极限,请添加助溶剂助溶或自行调整浓度。溶液形式一般不宜长期储存,请尽快用完。 |
质量控制和MSDS
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