1. Protein Tyrosine Kinase/RTK
    JAK/STAT Signaling
    Autophagy
    Apoptosis
    Metabolic Enzyme/Protease
  2. EGFR
    Autophagy
    Apoptosis
    Phosphodiesterase (PDE)
  3. Butein

Butein (Synonyms: 2’,3,4,4’-tetrahydroxy Chalcone)

目录号: HY-16558 纯度: 99.95%
产品使用指南

Butein,可从 Dalbergia odorifera T. Chen 分离,是一种 cAMP 特异性的 PDE 抑制剂,对 PDE4IC50为 10.4 μM。Butein 是蛋白酪氨酸激酶抑制剂,对 EGFRp60c-srcIC50 分别为 16 和 65 μM。Butein 通过 AKT 和 ERK/p38 MAPK 通路,靶向 FoxO3a 使 HeLa 细胞对 Cisplatin 敏感。Butein 还是一种 SIRT1 激活剂 (STAC)。

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Butein Chemical Structure

Butein Chemical Structure

CAS No. : 487-52-5

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Size Price Stock Quantity
10 mM * 1 mL in DMSO ¥824 In-stock
2 mg ¥550 In-stock
5 mg ¥880 In-stock
10 mg ¥1200 In-stock
50 mg ¥4500 In-stock
100 mg ¥7500 In-stock
200 mg   Get quote  
500 mg   Get quote  

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Description

Butein, isolated from Dalbergia odorifera T. Chen, is a cAMP-specific PDE inhibitor with an IC50 of 10.4 μM for PDE4[1]. Butein is a specific protein tyrosine kinase inhibitor with IC50s of 16 and 65 μM for EGFR and p60c-src in HepG2 cells[2]. Butein sensitizes HeLa cells to Cisplatin through AKT and ERK/p38 MAPK pathways by targeting FoxO3a[3]. Butein is a SIRT1 activator (STAC).

IC50 & Target[1]

EGFR

16 μM (IC50, in HepG2 cells)

PDE4

10.4 μM (IC50)

In Vitro

Butein potently inhibits cAMP-specific phosphodiesterase (type IV) activity with an IC50 of 10.4±0.4 μM. In contrast, phosphodiesterase I, III and V activities were inhibited by Butein above 100 μM[1].
Butein, a plant polyphenol, is a specific protein tyrosine kinase inhibitor. Butein inhibits not only the EGF-stimulated auto-phosphotyrosine level of EGFR in HepG2 cells but also tyrosine-specific protein kinase activities of EGFR (IC50=16 μM) and p60c-src (IC50=65 μM) in vitro[2].
Butein (10, 20, and 40 μM; 24, 48, and 72 hours) inhibits cell growth in a dose- and time-dependent manner[3].
Butein exhibits anticancer activity through the inhibition of the activation of PKB/AKT and MAPK pathways, which are two pathways known to be involved in resistance to cisplatin. Butein (20 µM) decreases phosphorylation of AKT, ERK and p38 following 24 h of co-treatment with Cisplatin (20 µM)[3].

Cell Viability Assay[3]

Cell Line: HeLa cells
Concentration: 10, 20, and 40 μM
Incubation Time: 24, 48, and 72 hours
Result: Inhibited cell growth in a dose- and time-dependent manner.

Western Blot Analysis[3]

Cell Line: HeLa cells
Concentration: 20 µM
Incubation Time: 24 hours
Result: Decreased phosphorylation of AKT, ERK and p38 co-treatment with Cisplatin (20 µM).
In Vivo

Butein (2 mg/kg every 2 days) in combination with Cisplatin (2 mg/kg every 2 days) for 3 weeks suppresses tumor growth in vivo[3].

Animal Model: Nude mice (12 female 6- or 7-week old) with subcutaneous tumor xenografts[3]
Dosage: 2 mg/kg
Administration: Intraperitoneally; every 2 days; for 3 weeks
Result: Enhanced the antitumor effects of Cisplatin in vivo.
Molecular Weight

272.25

Formula

C₁₅H₁₂O₅

CAS No.

487-52-5

SMILES

OC1=CC=C(C(/C=C/C2=CC(O)=C(O)C=C2)=O)C(O)=C1

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 35 mg/mL (128.56 mM)

* "≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.6731 mL 18.3655 mL 36.7309 mL
5 mM 0.7346 mL 3.6731 mL 7.3462 mL
10 mM 0.3673 mL 1.8365 mL 3.6731 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。 -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: ≥ 2.5 mg/mL (9.18 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (9.18 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 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,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: ≥ 2.5 mg/mL (9.18 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (9.18 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 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,再用生理盐水定溶至 10 mL,完全溶解,澄清透明
*以上所有助溶剂都可在 MCE 网站选购。
References
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Keywords:

Butein2’,3,4,4’-tetrahydroxy ChalconeEGFRAutophagyApoptosisPhosphodiesterase (PDE)Epidermal growth factor receptorErbB-1HER1PKBAKTMAPKp38ERKFoxO3aHeLaHepG2cellSIRT1PDE4Inhibitorinhibitorinhibit

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