1. Metabolic Enzyme/Protease
  2. Cytochrome P450
  3. Abiraterone

Abiraterone is a potent and irreversible CYP17A1 inhibitor with antiandrogen activity, which inhibits both the 17α-hydroxylase and 17,20-lyase activity of the cytochrome p450 enzyme CYP17 with IC50s of 2.5 nM and 15 nM, respectively.

For research use only. We do not sell to patients.

CAS No. : 154229-19-3

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Customer Review

Based on 24 publication(s) in Google Scholar

Other Forms of Abiraterone:

Top Publications Citing Use of Products

    Abiraterone purchased from MedChemExpress. Usage Cited in: J Cancer. 2023 Jul 16;14(12):2236-2245.  [Abstract]

    Cell viability of PC3-AbiR cells induced by Abiraterone (Abi; 20 μM; 48 h) was further decreased in the cells treated with 2% QLD containing serum.

    Abiraterone purchased from MedChemExpress. Usage Cited in: J Cancer. 2023 Jul 16;14(12):2236-2245.  [Abstract]

    Both relative lipid ROS and Fe2+ levels were significantly increased in the Abiraterone (Abi; 20 μM; 48 h) -treated PC3-AbiR cells in the presence of 2%-QLD containing serum.

    Abiraterone purchased from MedChemExpress. Usage Cited in: Cell Death Dis. 2022 Dec 12;13(12):1034.  [Abstract]

    LNCaP/ABI and 22RV1/ABI cells were treated with DMSO, IDA (0.25 μM), Abiraterone (ABI; 10 μM), and a combination of IDA with ABI for 24 h. XPA mRNA expression was determined by Real-time PCR

    Abiraterone purchased from MedChemExpress. Usage Cited in: Cell Death Dis. 2022 Dec 12;13(12):1034.  [Abstract]

    LNCaP/ABI and 22RV1/ABI cells were treated with DMSO, IDA(0.25 μM), ABI(10 μM), and a combination of IDA with Abiraterone (ABI) for 24 h. LC3B expressions were determined by western blot assay.

    Abiraterone purchased from MedChemExpress. Usage Cited in: Eur Urol. 2015 Aug;68(2):228-35.  [Abstract]

    Parental and resistant 22RV1 cell lines were exposed to increasing concentrations of Aabiraterone (Abi; 0-1000 μM) for 48 h, and IC50 ranges were determined using WST1 assay and GraphPad Prism for analysis.
    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Abiraterone is a potent and irreversible CYP17A1 inhibitor with antiandrogen activity, which inhibits both the 17α-hydroxylase and 17,20-lyase activity of the cytochrome p450 enzyme CYP17 with IC50s of 2.5 nM and 15 nM, respectively.

    IC50 & Target

    CYP17

     

    Cellular Effect
    Cell Line Type Value Description References
    A549 GI50
    95 μM
    Compound: Abiraterone
    Antiproliferative activity against human A549 cells after 48 hrs by SRB assay
    Antiproliferative activity against human A549 cells after 48 hrs by SRB assay
    [PMID: 29172080]
    A549 IC50
    35.8 nM
    Compound: ABT
    Inhibition of recombinant human CYP17 expressed in human A549 cell membranes using 17-alpha hydroxyprogesterone as substrate and NADPH as cofactor pretreated for 5 mins followed by substrate and cofactor addition after 60 mins by LC/MS analysis
    Inhibition of recombinant human CYP17 expressed in human A549 cell membranes using 17-alpha hydroxyprogesterone as substrate and NADPH as cofactor pretreated for 5 mins followed by substrate and cofactor addition after 60 mins by LC/MS analysis
    [PMID: 28350999]
    B16 IC50
    105.61 μM
    Compound: 5a
    Antiproliferative activity against mouse B16 cells measured after 48 hrs by MTT assay
    Antiproliferative activity against mouse B16 cells measured after 48 hrs by MTT assay
    [PMID: 38467086]
    CWR22R IC50
    9.09 μM
    Compound: ABI
    Antiproliferative activity against human 22Rv1 cells incubated for 72 hrs by SRB assay
    Antiproliferative activity against human 22Rv1 cells incubated for 72 hrs by SRB assay
    [PMID: 38364714]
    DU-145 GI50
    > 10 μM
    Compound: abiraterone
    Antiproliferative activity against human DU-145 cells assessed as cell growth inhibition incubated for 48 hrs by MTT assay
    Antiproliferative activity against human DU-145 cells assessed as cell growth inhibition incubated for 48 hrs by MTT assay
    [PMID: 34908406]
    GES1 IC50
    13.12 μM
    Compound: Abiraterone
    Antiproliferative activity against human GES-1 cells after 72 hrs by MTT assay
    Antiproliferative activity against human GES-1 cells after 72 hrs by MTT assay
    [PMID: 29310026]
    HBL-100 GI50
    > 100 μM
    Compound: Abiraterone
    Antiproliferative activity against human HBL100 cells after 48 hrs by SRB assay
    Antiproliferative activity against human HBL100 cells after 48 hrs by SRB assay
    [PMID: 29172080]
    HEK-293T IC50
    > 100 μM
    Compound: Abiraterone
    Cytotoxicity against HEK293T cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    Cytotoxicity against HEK293T cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    [PMID: 36455509]
    HeLa GI50
    7.9 μM
    Compound: Abiraterone
    Antiproliferative activity against human HeLa cells after 48 hrs by SRB assay
    Antiproliferative activity against human HeLa cells after 48 hrs by SRB assay
    [PMID: 29172080]
    HeLa IC50
    16.9 μM
    Compound: Abiraterone
    Antiproliferative activity against human HeLa cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    Antiproliferative activity against human HeLa cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    [PMID: 36455509]
    HepG2 IC50
    59.8 μM
    Compound: Abiraterone
    Antiproliferative activity against human HepG2 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    Antiproliferative activity against human HepG2 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    [PMID: 36455509]
    LNCaP IC50
    2706 nM
    Compound: Abiraterone
    Antiproliferative activity against human LNCAP cells assessed as reduction in cell viability measured after 6 days by CellTiter-Glo assay
    Antiproliferative activity against human LNCAP cells assessed as reduction in cell viability measured after 6 days by CellTiter-Glo assay
    [PMID: 36070471]
    LNCaP IC50
    3.29 μM
    Compound: Abiraterone
    Antiproliferative activity against human LNCAP cells after 72 hrs by MTT assay
    Antiproliferative activity against human LNCAP cells after 72 hrs by MTT assay
    [PMID: 29310026]
    LNCaP IC50
    800 nM
    Compound: Abiraterone
    In vitro cytochrome P450 17A1 inhibition was assayed using the rapid acetic acid releasing assay (AARA), utilizing intact P450c17-expressing Escherichia coli or P450c17-LNCaP cells as the enzyme source.
    In vitro cytochrome P450 17A1 inhibition was assayed using the rapid acetic acid releasing assay (AARA), utilizing intact P450c17-expressing Escherichia coli or P450c17-LNCaP cells as the enzyme source.
    [PMID: 12773039]
    MCF7 IC50
    19.3 μM
    Compound: Abiraterone
    Growth inhibition of human MCF7 cells after 72 hrs by MTT assay
    Growth inhibition of human MCF7 cells after 72 hrs by MTT assay
    [PMID: 27209562]
    MCF7 IC50
    38.2 μM
    Compound: Abiraterone
    Antiproliferative activity against human MCF7 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    Antiproliferative activity against human MCF7 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    [PMID: 36455509]
    MDA-MB-231 IC50
    19.2 μM
    Compound: Abiraterone
    Growth inhibition of human MDA-MB-231 cells after 72 hrs by MTT assay
    Growth inhibition of human MDA-MB-231 cells after 72 hrs by MTT assay
    [PMID: 27209562]
    MDA-MB-361 IC50
    20.4 μM
    Compound: Abiraterone
    Growth inhibition of human MDA-MB-361 cells after 72 hrs by MTT assay
    Growth inhibition of human MDA-MB-361 cells after 72 hrs by MTT assay
    [PMID: 27209562]
    MGC-803 IC50
    7.72 μM
    Compound: Abiraterone
    Antiproliferative activity against human MGC803 cells after 72 hrs by MTT assay
    Antiproliferative activity against human MGC803 cells after 72 hrs by MTT assay
    [PMID: 29310026]
    PC-3 GI50
    > 10 μM
    Compound: abiraterone
    Antiproliferative activity against human PC-3 cells assessed as cell growth inhibition incubated for 48 hrs by MTT assay
    Antiproliferative activity against human PC-3 cells assessed as cell growth inhibition incubated for 48 hrs by MTT assay
    [PMID: 34908406]
    PC-3 IC50
    17.2 μM
    Compound: AB; Cpd I
    Cytotoxicity against human PC-3 cells assessed as reduction in cell viability incubated for 72 hrs by MTT assay
    Cytotoxicity against human PC-3 cells assessed as reduction in cell viability incubated for 72 hrs by MTT assay
    [PMID: 37859725]
    PC-3 IC50
    5.94 μM
    Compound: Abiraterone
    Antiproliferative activity against human PC3 cells after 72 hrs by MTT assay
    Antiproliferative activity against human PC3 cells after 72 hrs by MTT assay
    [PMID: 29310026]
    PC-3 IC50
    9.32 μM
    Compound: Abiraterone
    Cytotoxicity against human PC3 cells assessed as growth inhibition after 48 hrs by MTT assay
    Cytotoxicity against human PC3 cells assessed as growth inhibition after 48 hrs by MTT assay
    [PMID: 24148837]
    PC-3 IC50
    91 μM
    Compound: AB; Cpd I
    Cytotoxicity against human PC-3 cells assessed as reduction in cell viability incubated for 48 hrs by SRB assay
    Cytotoxicity against human PC-3 cells assessed as reduction in cell viability incubated for 48 hrs by SRB assay
    [PMID: 37859725]
    RWPE-1 IC50
    645 μM
    Compound: AB; Cpd I
    Cytotoxicity against human RWPE-1 cells assessed as reduction in cell viability incubated for 48 hrs by SRB assay
    Cytotoxicity against human RWPE-1 cells assessed as reduction in cell viability incubated for 48 hrs by SRB assay
    [PMID: 37859725]
    SK-OV-3 IC50
    59.5 μM
    Compound: Abiraterone
    Antiproliferative activity against human SK-OV-3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    Antiproliferative activity against human SK-OV-3 cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    [PMID: 36455509]
    SW1573 GI50
    85 μM
    Compound: Abiraterone
    Antiproliferative activity against human SW1573 cells after 48 hrs by SRB assay
    Antiproliferative activity against human SW1573 cells after 48 hrs by SRB assay
    [PMID: 29172080]
    T47D GI50
    24 μM
    Compound: Abiraterone
    Antiproliferative activity against human T47D cells after 48 hrs by SRB assay
    Antiproliferative activity against human T47D cells after 48 hrs by SRB assay
    [PMID: 29172080]
    T47D IC50
    16.9 μM
    Compound: Abiraterone
    Growth inhibition of human T47D cells after 72 hrs by MTT assay
    Growth inhibition of human T47D cells after 72 hrs by MTT assay
    [PMID: 27209562]
    T47D IC50
    34.7 μM
    Compound: Abiraterone
    Antiproliferative activity against human T47D cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    Antiproliferative activity against human T47D cells assessed as inhibition of cell growth incubated for 72 hrs by MTT assay
    [PMID: 36455509]
    WiDr GI50
    42 μM
    Compound: Abiraterone
    Antiproliferative activity against human WiDr cells after 48 hrs by SRB assay
    Antiproliferative activity against human WiDr cells after 48 hrs by SRB assay
    [PMID: 29172080]
    hTERT-BJ GI50
    4.5 μM
    Compound: Abiraterone
    Cytotoxicity against human hTERT-BJ cells assessed as cell growth inhibition after 48 hrs SRB assay
    Cytotoxicity against human hTERT-BJ cells assessed as cell growth inhibition after 48 hrs SRB assay
    [PMID: 29172080]
    In Vitro

    Significant inhibition of proliferation of the AR-positive prostate cancer cell lines LNCaP and VCaP with doses of Abiraterone ≥5 μM is confirmed[2]. Abiraterone shows IC50 values of 15 nM and 2.5 nM for the 17,20-lyase and 17α-hydroxylase (CYP17 is a bifunctional enzyme with both 17α-hydroxylase and 17,20-lyase activity). Abiraterone inhibits human 17,20-lyase and 17α-hydroxylase with IC50 of 27 and 30 nM respectively[3]. Abiraterone inhibits recombinant human 3βHSD1 and 3βHSD2 activity with competitive Ki values of 2.1 and 8.8 μM. 10 μM Abiraterone is sufficient to completely block synthesis of 5α-dione and DHT in both cell lines.Treatment with abi significantly inhibited CRPC progression in the robustly growing subset, effectively putting a ceiling on tumor growth over 4 weeks of treatment (P<0.00001). [3H]-dehydroepiandrosterone (DHEA) depletion and Δ4-androstenedione (AD) accumulation are inhibited by Abiraterone in LNCaP, with an IC50<1 μM[4].

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

    In Vivo

    The 0.5 mmol/kg/d Abiraterone treatment dose is previously shown to yield serum concentrations of about 0.5 to 1 μM. Xenograft tumor growth in the control group is widely variable, with some tumors growing slowly and only a subset of tumors exhibiting robust growth[4]. Following i.v. administration (5 mg/kg) the clearance (Cl) and volume of distribution (Vd) are found to be 31.2 mL/min/kg and 1.97 L/kg, respectively. The AUC0-∞ (area under the plasma concentration-time curve from time zero to infinity time point) is found to be 2675 ng*h/mL. The terminal half-life (t1/2) is 0.73 h. Because of high clearance, Abiraterone (ART) is quantifiable only until 2 h following i.v. administration[5].

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

    Clinical Trial
    Molecular Weight

    349.51

    Formula

    C24H31NO

    CAS No.
    Appearance

    Solid

    Color

    White to off-white

    SMILES

    C[C@@]12C(C3=CN=CC=C3)=CC[C@]1([C@@]4(CC=C5[C@@](C)([C@]4(CC2)[H])CC[C@@H](C5)O)[H])[H]

    Shipping

    Room temperature in continental US; may vary elsewhere.

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

    DMF : 5 mg/mL (14.31 mM; ultrasonic and warming and heat to 60°C)

    Ethanol : 5 mg/mL (14.31 mM; ultrasonic and warming and heat to 60°C)

    DMSO : 2.5 mg/mL (7.15 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.8611 mL 14.3057 mL 28.6115 mL
    5 mM 0.5722 mL 2.8611 mL 5.7223 mL
    View the Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

    • Molarity Calculator

    • Dilution Calculator

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

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    This equation is commonly abbreviated as: C1V1 = C2V2

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    In Vivo Dissolution Calculator
    Please enter the basic information of animal experiments:

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    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Calculation results:
    Working solution concentration: mg/mL
    Purity & Documentation

    Purity: 99.83%

    References
    Cell Assay
    [2]

    LNCaP and VCaP cells are seeded in 96-well plates and grown in CSS-supplemented phenol red-free or FBS-supplemented media for 7 days. Cells are treated with Abiraterone (5 μM and 10 μM) at 24 and 96 hours after plating and cell viability is determined on day 7 by adding CellTiter Glo and measuring luminescence[2].

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

    Animal Administration
    [4][5]

    Mice[4]
    Male NOD/SCID mice 6 to 8 weeks of age are surgically orchiectomized and implanted with a 5 mg 90-day sustained release DHEA pellet to mimic CRPC with human adrenal physiology. Two days later, 7×106 LAPC4 cells are injected subcutaneously with Matrigel. Tumor dimensions are measured 2 to 3 times per week, and volume is calculated as length×width×height×0.52. Once tumors reach 300 mm3, mice are randomly assigned to vehicle or Abiraterone treatment groups. Mice in the Abiraterone group are treated with 5 mL/kg intraperitoneal injections of 0.5 mmol/kg/d (0.1 mL 5% benzyl alcohol and 95% safflower oil solution) and control mice with vehicle only, once daily for 5 days per week over a duration of 4 weeks (n=8 mice per treatment). Statistical significance between Abiraterone and vehicle treatment groups is assessed by ANOVA based on a mixed-effect model.
    Rats[5]
    Male Sprague-Dawley rats (n=8, 240-260 g) are used. Blood samples (450 µL) are obtained following an i.v. 5 mg/kg dose of ART into polypropylene tubes containing Na2-EDTA solution as an anticoagulant and at pre-dose, 0.12, 0.25, 0.5, 1, 2, 4, 6, 8 and 24 h (a sparse sampling protocol is adopted during blood collection and at each time point blood is collected from four animals). Plasma is harvested by centrifuging the blood using a Biofuge at 1760g for 5 min and stored frozen at -80±10°C until analysis.

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

    References

    Complete Stock Solution Preparation Table

    * Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
    Storage method and period of stock solution: -80°C, 1 year; -20°C, 6 months. When stored at -80°C, please use it within 1 year. When stored at -20°C, please use it within 6 months.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO / DMF / Ethanol 1 mM 2.8611 mL 14.3057 mL 28.6115 mL 71.5287 mL
    5 mM 0.5722 mL 2.8611 mL 5.7223 mL 14.3057 mL
    DMF / Ethanol 10 mM 0.2861 mL 1.4306 mL 2.8611 mL 7.1529 mL
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    Product Name:
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    Cat. No.:
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