2. NF-κB Apoptosis
  3. NF-κB Ferroptosis
  4. Withaferin A

Withaferin A  (Synonyms: 醉茄素A)

目录号: HY-N2065 纯度: 99.71%
COA 产品使用指南

摩尔计算器

Withaferin A 是从睡茄中分离到的甾体内酯，可以抑制 NF-kB 的活性，靶作用于波形蛋白 (vimentin)，具有抗炎，抗肿瘤等功效。Withaferin A 是内皮蛋白 C 受体 (EPCR) 脱落的抑制剂。

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Withaferin A Chemical Structure

Withaferin A Chemical Structure

CAS No. : 5119-48-2

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规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ￥2899
In-stock
1 mg ￥1300
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5 mg ￥2800
In-stock
10 mg ￥4600
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50 mg   询价  
100 mg   询价  

* Please select Quantity before adding items.

Other Forms of Withaferin A:

Withaferin A 相关抗体

Top Publications Citing Use of Products

    Withaferin A purchased from MCE. Usage Cited in: Cancer Cell Int. 2020 May 20;20:179.  [Abstract]

    PD-L1 protein levels in HepG2 cells treated with diferent concentration of NF-κB inhibitor, Withaferin A (WA).

    查看 NF-κB 亚型特异性产品:

    查看所有亚型
    NF-κB NF-κB1/p50 RelA/p65 RelB c-Rel

    • 生物活性

    • 实验参考方法

    • 纯度 & 产品资料

    • 参考文献

    生物活性

    Withaferin A is a steroidal lactone isolated from Withania somnifera, inhibits NF-kB activation and targets vimentin, with potent antiinflammatory and anticancer activities. Withaferin A is an inhibitor of endothelial protein C receptor (EPCR) shedding.

    IC50 & Target[1]

    NFκB

     

    体外研究
    (In Vitro)

    Withaferin A has antiinflammatory activity, and potently inhibits NF-kB activation by preventing the TNF-induced activation of Ik-B kinase beta via a thioalkylation-sensitive redox mechanism[1].
    Withaferin A also has anticancer activity. Withaferin A targets the IF protein vimentin, causes aggregation of vimentin filaments in bovine aortic endothelial cells (BAECs) at 3 μM, and induces vimentin fragmentation in endothelial cells at 10 μM[2].
    Withaferin A (0.5, 1.5 μM) alone or incombination with cisplatin (CIS) dose-dependently reduces tumorigenic potential of ALDH1 positive cancer stem cells (CSCs)[3].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.

    Withaferin A 相关抗体:
    体内研究
    (In Vivo)

    Withaferin A (2 mg/kg, i.p.) shows potent angiogenesis inhibitory activity via vimentin in mice[2]. Withaferin A (2 mg/kg) combined with cisplatin (CIS) regulates the expression of ALDH1 marker, and downregulates the expression of securin in tumors collected from mice[3].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    Clinical Trial
    分子量

    470.60

    Formula

    C28H38O6
    CAS 号
    性状

    固体

    颜色

    White to off-white

    中文名称

    醉茄素A
    结构分类
    初始来源
    运输条件

    Room temperature in continental US; may vary elsewhere.
    储存方式

    4°C, protect from light

    *In solvent : -80°C, 2 years; -20°C, 1 year (protect from light)

    溶解性数据
    细胞实验： 

    DMSO 中的溶解度 : 50 mg/mL (106.25 mM; 超声助溶; 吸湿的 DMSO 对产品的溶解度有显著影响，请使用新开封的 DMSO)

    配制储备液
    浓度 溶剂体积 质量 1 mg 5 mg 10 mg
    1 mM 2.1249 mL 10.6247 mL 21.2495 mL
    5 mM 0.4250 mL 2.1249 mL 4.2499 mL
    查看完整储备液配制表

    * 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, 2 years; -20°C, 1 year (protect from light)。-80°C储存时，请在2年内使用， -20°C储存时，请在1年内使用。

    • 摩尔计算器

    • 稀释计算器

    Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

    质量
    =
    浓度
    ×
    体积
    ×
    分子量 *

    Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

    This equation is commonly abbreviated as: C1V1 = C2V2

    浓度 (start)

    C1

    ×
    体积 (start)

    V1

    =
    浓度 (final)

    C2

    ×
    体积 (final)

    V2

    动物实验：

    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

    • 方案 一

      请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% Saline

      Solubility: ≥ 0.83 mg/mL (1.76 mM); 澄清溶液

      此方案可获得 ≥ 0.83 mg/mL（饱和度未知）的澄清溶液。

      以 1 mL 工作液为例，取 100 μL 8.3 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中，混合均匀；再向上述体系中加入 50 μL Tween-80，混合均匀；然后再继续加入 450 μL 生理盐水 定容至 1 mL。

      生理盐水的配制：将 0.9 g 氯化钠，溶解于 ddH₂O 并定容至 100 mL，可以得到澄清透明的生理盐水溶液。
    • 方案 二

      请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in Saline)

      Solubility: ≥ 0.83 mg/mL (1.76 mM); 澄清溶液

      此方案可获得 ≥ 0.83 mg/mL（饱和度未知）的澄清溶液。

      以 1 mL 工作液为例，取 100 μL 8.3 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。

      20% SBE-β-CD in Saline 的配制（4°C，储存一周）：2 g SBE-β-CD（磺丁基醚 β-环糊精）粉末定容于 10 mL 的生理盐水中，完全溶解至澄清透明。
    动物溶解方案计算器
    请输入动物实验的基本信息：

    给药剂量

    mg/kg

    动物的平均体重

    g

    每只动物的给药体积

    μL

    动物数量

    只
    由于实验过程有损耗，建议您多配一只动物的量
    请输入您的动物体内配方组成：
    %
    DMSO +
    % 
    +
    %
    Tween-80 +
    %
    Saline
    如果您的动物是免疫缺陷鼠或者体弱鼠，建议 DMSO 中的在最后工作液体系中的占比尽量不超过 2%。
    方案所需 助溶剂 包括：DMSO， ，均可在 MCE 网站选购。 ，Tween 80，均可在 MCE 网站选购。
    计算结果
    工作液所需浓度 : mg/mL
    储备液配制方法 : mg 药物溶于 μL  DMSO（母液浓度为 mg/mL）。

    *In solvent : -80°C, 2 years; -20°C, 1 year (protect from light)

    您所需的储备液浓度超过该产品的实测溶解度，以下方案仅供参考，如有需要，请与 MCE 中国技术支持联系。
    动物实验体内工作液的配制方法 : 取 μL DMSO 储备液，加入 μL 。 μL ，混合均匀至澄清，再加 μL Tween 80，混合均匀至澄清，再加 μL 生理盐水。
    连续给药周期超过半月以上，请谨慎选择该方案。
    请确保第一步储备液溶解至澄清状态，从左到右依次添加助溶剂。您可采用超声加热 （超声清洗仪，建议频次 20-40 kHz），涡旋吹打等方式辅助溶解。
    纯度 & 产品资料

    纯度: 99.92%

    COA (176 KB) HNMR (230 KB) LCMS (334 KB)

    产品使用指南 (1538 KB)
    参考文献
    Cell Assay
    [3]

    Ovarian epithelial cancer cell line A2780 is maintained in RPMI1640 medium supplemented with insulin (5 μg/mL), penicillin/streptomycin (100 IU/mL and 100 μg/mL respectively) and 10% fetal bovine serum (FBS) from Hyclone. Withaferin A, cisplatin (CIS) and other reagents are prepared in DMSO. Cisplatin is prepared fresh each time[3].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    Animal Administration
    [2]

    Mice[2]
    Vimentin homozygous-deficient mice (Vim−/−)     and mice that are vimentin-heterozygous deficient (Vim+/−) in the 129/Svev background are used in the assay. In brief, mice between 4 and 6 wk of age are anesthetized by intraperiteoneal (i.p.) injection of ketamine and xylazine. Corneas are topically anesthetized by application of proparacain eye drop, and 1 μL drop of dilute 0.15 M sodium hydroxide is applied for 1 min. The cornea is immediately washed extensively in saline solution, and corneal and limbal epithelium gently removed by scraping. The cornea is topically treated with atropine eye drop and covered with tobramycin and erythromycin antibiotic eye ointment. Withaferin A or 12-D WS (2 mg/kg solubilized in DMSO) or vehicle (DMSO) is injected i.p. in respective drug or control groups of mice after their recovery from corneal injury, and subsequently every day thereafter for a period of 10 days. Mice are humanely killed and eyes enucleated. The anterior segment half of eyes are dissected and corneal buttons are prepared. Corneal tissues are fixed in 100% acetone for 20 min, washed in PBS for 1 hr, and blocked for 18 hr in 1% BSA-PBS at 4°C. Cornea whole-mount staining is performed by incubating tissues in FITC-conjugated rat anti-mouse CD31 antibody (1:333 dilution in 1% BSA-PBS) for 12 hr, washed away for 24 hr at 4°C in 1% BSA-PBS, and affixed to glass slides with a coverslip. Fluorescent staining is visualized on microscope, and quantified by importing digital images to NIH ImageJ[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    参考文献

    Withaferin A 相关分类

    完整储备液配制表

    * 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, 2 years; -20°C, 1 year (protect from light)。-80°C储存时，请在2年内使用， -20°C储存时，请在1年内使用。

    可选溶剂 浓度 溶剂体积 质量 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 2.1249 mL 10.6247 mL 21.2495 mL 53.1237 mL
    5 mM 0.4250 mL 2.1249 mL 4.2499 mL 10.6247 mL
    10 mM 0.2125 mL 1.0625 mL 2.1249 mL 5.3124 mL
    15 mM 0.1417 mL 0.7083 mL 1.4166 mL 3.5416 mL
    20 mM 0.1062 mL 0.5312 mL 1.0625 mL 2.6562 mL
    25 mM 0.0850 mL 0.4250 mL 0.8500 mL 2.1249 mL
    30 mM 0.0708 mL 0.3542 mL 0.7083 mL 1.7708 mL
    40 mM 0.0531 mL 0.2656 mL 0.5312 mL 1.3281 mL
    50 mM 0.0425 mL 0.2125 mL 0.4250 mL 1.0625 mL
    60 mM 0.0354 mL 0.1771 mL 0.3542 mL 0.8854 mL
    80 mM 0.0266 mL 0.1328 mL 0.2656 mL 0.6640 mL
    100 mM 0.0212 mL 0.1062 mL 0.2125 mL 0.5312 mL
    Help & FAQs
    • Do most proteins show cross-species activity?

      Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

    Keywords:

    Withaferin A5119-48-2醉茄素ANF-κBFerroptosisNuclear factor-κBNuclear factor-kappaBInhibitorinhibitorinhibit

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