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  2. Membrane Transporter/Ion Channel
  3. P-glycoprotein
  4. Valspodar

Valspodar  (Synonyms: 伐司撲達(dá); PSC 833)

目錄號(hào): HY-17384 純度: ≥98.0%
COA 產(chǎn)品使用指南 技術(shù)支持

Valspodar (PSC 833) 是一種選擇性的 P-糖蛋白抑制劑，已被用作化學(xué)增敏劑用于實(shí)驗(yàn)性癌癥的研究。

MCE 的所有產(chǎn)品僅用作科學(xué)研究或藥證申報(bào)，我們不為任何個(gè)人用途提供產(chǎn)品和服務(wù)

Valspodar Chemical Structure

Valspodar Chemical Structure

CAS No. : 121584-18-7

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1 mg ￥3500
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Customer Review

    Valspodar purchased from MCE. Usage Cited in: J Drug Target. 2016;24(5):441-9.  [Abstract]

    Cells are co-treated with 5?μM of free LY156758 or an equivalent dose of SMA-LY156758 and either vehicle control (0.01% DMSO), Elacridar (1?μM), KO143 (5?μM), Valspodar (1?μM) or a combination of efflux inhibitors for 6?h.

    Valspodar purchased from MCE. Usage Cited in: Oncotarget. 2016 Oct 18;7(42):68623-68637.  [Abstract]

    The effect of MDR1 on drug sensitivity to 5-FU in BGC-823 cells is tested by using MDR1 specific inhibitor PSC833. Cells are exposed to 2 μM 5-FU combined with PSC833 (0, 1, 3, 9 μM) for 72 h. Cell viability is detected by CCK-8 assay.

    • 生物活性

    • 實(shí)驗(yàn)參考方法

    • 純度 & 產(chǎn)品資料

    • 參考文獻(xiàn)

    生物活性

    Valspodar (PSC 833) is a selective P-glycoprotein inhibitor that has been used as an experimental cancer treatment and chemosensitizer.

    細(xì)胞效力
    (Cellular Effect)
    Cell Line Type Value Description References
    L929 IC50
    > 100 μM
    Compound: 3
    Cytotoxicity against mouse L929 cells after 72 hrs
    Cytotoxicity against mouse L929 cells after 72 hrs
    		[PMID: 22320402]
    SW-620 IC50
    0.1 μM
    Compound: PSC833
    Reversal of P-gp-mediated resistance to doxorubicin in human SW620 cells assessed as reduction in doxorubin IC50 at 400 nM after 72 hrs by SRB assay
    Reversal of P-gp-mediated resistance to doxorubicin in human SW620 cells assessed as reduction in doxorubin IC50 at 400 nM after 72 hrs by SRB assay
    		[PMID: 25215856]
    體外研究
    (In Vitro)

    Valspodar (PSC 833) has no cytotoxicity effects at up to the concentration of 0.75 μg/mL. Valspodar (0.25, 0.5 and 0.75 μg/mL) and DOX-L are added to the DOX resistant cells, and cell kill efficacy of MDR cell type increases significantly when valspodar is administered alongside DOX-L. Valspodar (0.5 and 0.75 μg/mL), in combination with all concentrations of DOX, are most toxic and kill more than 70% of the resistant cells[1].
    Pretreatment with PSC833 decreases the IC50 value of NSC 279836 in MDA-MB-435mdr cells to 0.4±0.02 μM in MDR cells and almost completely reverses the resistance of MDR cells to NSC 279836[3].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    體內(nèi)研究
    (In Vivo)

    valspodar (10 mg/kg, o.p.) exhibits minimal blood-cell partitioning as reflected in its low mean blood-to-plasma ratio of approximately 0.52. Valspodar displays properties of slow clearance and a large volume of distribution. Valspodar shows properties of low hepatic extraction and wide distribution, similar to that of its structural analogue CsA[2].
    Preadministration of PSC833 to mice increases NSC 279836 fluorescent intensity in MDR tumor to 94% of that in the wild-type tumors[3].

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

    1214.62

    Formula

    C63H111N11O12
    CAS 號(hào)
    性狀

    固體

    顏色

    White to yellow

    中文名稱(chēng)

    伐司樸達(dá)
    運(yùn)輸條件

    Room temperature in continental US; may vary elsewhere.
    儲(chǔ)存方式
    Powder -20°C 3 years
    In solvent -80°C 6 months
    -20°C 1 month
    溶解性數(shù)據(jù)
    細(xì)胞實(shí)驗(yàn)： 

    DMSO 中的溶解度 : 100 mg/mL (82.33 mM; 超聲助溶; 吸濕的 DMSO 對(duì)產(chǎn)品的溶解度有顯著影響，請(qǐng)使用新開(kāi)封的 DMSO)

    配制儲(chǔ)備液
    濃度 溶劑體積 質(zhì)量 1 mg 5 mg 10 mg
    1 mM 0.8233 mL 4.1165 mL 8.2330 mL
    5 mM 0.1647 mL 0.8233 mL 1.6466 mL
    查看完整儲(chǔ)備液配制表

    * 請(qǐng)根據(jù)產(chǎn)品在不同溶劑中的溶解度選擇合適的溶劑配制儲(chǔ)備液；一旦配成溶液，請(qǐng)分裝保存，避免反復(fù)凍融造成的產(chǎn)品失效。
    儲(chǔ)備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C儲(chǔ)存時(shí)，請(qǐng)?jiān)?個(gè)月內(nèi)使用，-20°C儲(chǔ)存時(shí)，請(qǐng)?jiān)?個(gè)月內(nèi)使用。

    • 摩爾計(jì)算器

    • 稀釋計(jì)算器

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

    質(zhì)量
    =
    濃度
    ×
    體積
    ×
    分子量 *

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

    This equation is commonly abbreviated as: C1V1 = C2V2

    濃度 (start)

    C1

    ×
    體積 (start)

    V1

    =
    濃度 (final)

    C2

    ×
    體積 (final)

    V2

    動(dòng)物實(shí)驗(yàn)：

    請(qǐng)根據(jù)您的 實(shí)驗(yàn)動(dòng)物和給藥方式 選擇適當(dāng)?shù)娜芙夥桨浮?

    以下溶解方案都請(qǐng)先按照 In Vitro 方式配制澄清的儲(chǔ)備液，再依次添加助溶劑：
    ——為保證實(shí)驗(yàn)結(jié)果的可靠性，澄清的儲(chǔ)備液可以根據(jù)儲(chǔ)存條件，適當(dāng)保存；體內(nèi)實(shí)驗(yàn)的工作液，建議您現(xiàn)用現(xiàn)配，當(dāng)天使用；
    以下溶劑前顯示的百分比是指該溶劑在您配制終溶液中的體積占比；如在配制過(guò)程中出現(xiàn)沉淀、析出現(xiàn)象，可以通過(guò)加熱和/或超聲的方式助溶

    • 方案 一

      請(qǐng)依序添加每種溶劑： 10% DMSO    90% Corn Oil

      Solubility: ≥ 2.5 mg/mL (2.06 mM); 澄清溶液

      此方案可獲得 ≥ 2.5 mg/mL（飽和度未知）的澄清溶液，此方案實(shí)驗(yàn)周期在半個(gè)月以上的動(dòng)物實(shí)驗(yàn)酌情使用。

      以 1 mL 工作液為例，取 100 μL 25.0 mg/mL 的澄清 DMSO 儲(chǔ)備液加到 900 μL玉米油中，混合均勻。

    動(dòng)物溶解方案計(jì)算器
    請(qǐng)輸入動(dòng)物實(shí)驗(yàn)的基本信息：

    給藥劑量

    mg/kg

    動(dòng)物的平均體重

    g

    每只動(dòng)物的給藥體積

    μL

    動(dòng)物數(shù)量

    只
    由于實(shí)驗(yàn)過(guò)程有損耗，建議您多配一只動(dòng)物的量
    請(qǐng)輸入您的動(dòng)物體內(nèi)配方組成：
    %
    DMSO +
    % 
    +
    %
    Tween-80 +
    %
    Saline
    如果您的動(dòng)物是免疫缺陷鼠或者體弱鼠，建議 DMSO 中的在最后工作液體系中的占比盡量不超過(guò) 2%。
    方案所需 助溶劑 包括：DMSO， ，均可在 MCE 網(wǎng)站選購(gòu)。 ，Tween 80，均可在 MCE 網(wǎng)站選購(gòu)。
    計(jì)算結(jié)果
    工作液所需濃度 : mg/mL
    儲(chǔ)備液配制方法 : mg 藥物溶于 μL  DMSO（母液濃度為 mg/mL）。
    您所需的儲(chǔ)備液濃度超過(guò)該產(chǎn)品的實(shí)測(cè)溶解度，以下方案僅供參考，如有需要，請(qǐng)與 MCE 中國(guó)技術(shù)支持聯(lián)系。
    動(dòng)物實(shí)驗(yàn)體內(nèi)工作液的配制方法 : 取 μL DMSO 儲(chǔ)備液，加入 μL 。 μL ，混合均勻至澄清，再加 μL Tween 80，混合均勻至澄清，再加 μL 生理鹽水。
    連續(xù)給藥周期超過(guò)半月以上，請(qǐng)謹(jǐn)慎選擇該方案。
    請(qǐng)確保第一步儲(chǔ)備液溶解至澄清狀態(tài)，從左到右依次添加助溶劑。您可采用超聲加熱 （超聲清洗儀，建議頻次 20-40 kHz），渦旋吹打等方式輔助溶解。
    純度 & 產(chǎn)品資料

    純度: 99.27%

    參考文獻(xiàn)
    Cell Assay
    [1]

    The in vitro cytotoxicity of various formulations against T47D/TAMR-6 cells is investigated by MTT assay. A 104 T47D/TAMR-6 cells are cultured in 96-well plate containing RPMI medium and incubated overnight to allow cell attachment. After 48 hours incubation, fresh medium containing serial concentration of various drug formulations, including free DOX, DOX-L, mixture of DOX-L and free Valspodar (PSC 833), mixture of DOX-L and PSC-L and DOX/PSC-L are added. The plates are then incubated for an additional 48 hours before washing with normal saline followed by adding MTT solution (0.5 mg/mL) to each well, and incubated for 4 h at 37°C. Then, the medium is removed, and DMSO is added to dissolve the formazan crystals. The plates are mildly shaken for 10 min to ensure the dissolution of formazan. The formazan dye is measured spectrophotometrically using microplate reader at 570 nm with reference standard of 690 nm as described before.

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

    Male Sprague–Dawley rats (250-350 g) are housed in temperature-controlled rooms with 12 h of light per day. The animals had free access to food and water prior to experimentation. Rats are divided into two groups: one group (n=6) receives intravenous dose (5 mg/kg) of valspodar and the other group administered valspodar orally (10 mg/kg). Stereoselective pharmacokinetics of desbutylhalofantrine, a metabolite of halofantrine, in the rat after administration of the racemic metabolite or parent drug. After surgery, the rats are transferred to their regular holding cages and allowed free access to water, but food is withheld overnight. The next morning, rats are transferred to the metabolic cages and dosed with valspodar.

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    參考文獻(xiàn)

    完整儲(chǔ)備液配制表

    * 請(qǐng)根據(jù)產(chǎn)品在不同溶劑中的溶解度選擇合適的溶劑配制儲(chǔ)備液；一旦配成溶液，請(qǐng)分裝保存，避免反復(fù)凍融造成的產(chǎn)品失效。
    儲(chǔ)備液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C儲(chǔ)存時(shí)，請(qǐng)?jiān)?個(gè)月內(nèi)使用，-20°C儲(chǔ)存時(shí)，請(qǐng)?jiān)?個(gè)月內(nèi)使用。

    可選溶劑 濃度 溶劑體積 質(zhì)量 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 0.8233 mL 4.1165 mL 8.2330 mL 20.5826 mL
    5 mM 0.1647 mL 0.8233 mL 1.6466 mL 4.1165 mL
    10 mM 0.0823 mL 0.4117 mL 0.8233 mL 2.0583 mL
    15 mM 0.0549 mL 0.2744 mL 0.5489 mL 1.3722 mL
    20 mM 0.0412 mL 0.2058 mL 0.4117 mL 1.0291 mL
    25 mM 0.0329 mL 0.1647 mL 0.3293 mL 0.8233 mL
    30 mM 0.0274 mL 0.1372 mL 0.2744 mL 0.6861 mL
    40 mM 0.0206 mL 0.1029 mL 0.2058 mL 0.5146 mL
    50 mM 0.0165 mL 0.0823 mL 0.1647 mL 0.4117 mL
    60 mM 0.0137 mL 0.0686 mL 0.1372 mL 0.3430 mL
    80 mM 0.0103 mL 0.0515 mL 0.1029 mL 0.2573 mL
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    產(chǎn)品名稱(chēng)：
    Valspodar
    目錄號(hào)：
    HY-17384
    需求量：