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> Palbociclib [571190-30-2]

Palbociclib [571190-30-2]

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Cat# HY-50767-10mg

Size : 10mg

Brand : MedChemExpress

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Palbociclib (PD 0332991) is an orally active selective CDK4 and CDK6 inhibitor with IC50 values of 11 and 16 nM, respectively. Palbociclib has potent anti-proliferative activity and induces cell cycle arrest in cancer cells, which can be used in the research of HR-positive and HER2-negative breast cancer and hepatocellular carcinoma.

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

Palbociclib Chemical Structure

Palbociclib Chemical Structure

CAS No. : 571190-30-2

This product is a controlled substance and not for sale in your territory.

Based on 160 publication(s) in Google Scholar

Other Forms of Palbociclib:

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  • Palbociclib dihydrochloride Get quote
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    Palbociclib purchased from MedChemExpress. Usage Cited in: Life Sciences. 2023 Apr 1, 121652.

    Palbociclib (1 µM; 48 h) decreases the expression of PPARγ in SVFs.

    Palbociclib purchased from MedChemExpress. Usage Cited in: EBioMedicine. 2019 May;43:225-237.  [Abstract]

    Representative images of immunohistochemical staining for proteins as indicated in A2780 xenografted tumors (n=6 per treatment group) treated with AZD2281 and Palbociclib either as single-agents or in combination for 4 days.

    Palbociclib purchased from MedChemExpress. Usage Cited in: Nat Commun. 2018 Oct 9;9(1):4180.  [Abstract]

    MCF7, MCF7-LEM4, and MCF7-TAMR cells are treated with 5% DCC-FBS (vehicle), 4-OHT (1 μM), PD0332991 (PD) (0.2 μM), or a combination of 4-OHT and PD0332991. Immunoblots of lysates from cells are tested.

    Palbociclib purchased from MedChemExpress. Usage Cited in: J Exp Clin Cancer Res. 2018 Sep 20;37(1):233.  [Abstract]

    Western blot of the nine cell cycle-related proteins in C666-1 cells treated with different concentrations of GEM (0.1, 1, and 10 μM) and PAL (0.1, 1, and 5 μM) after 48 h.

    Palbociclib purchased from MedChemExpress. Usage Cited in: Eur J Cancer. 2018 Oct;102:10-22.  [Abstract]

    Head-to-head comparison of the effect of Palbociclib and Ribociclib on DNA damage response (DDR) signalling in liver cancer cells.

    Palbociclib purchased from MedChemExpress. Usage Cited in: Nature. 2017 Jun 15;546(7658):426-430.  [Abstract]

    In vitro kinase reactions using immunoprecipitated endogenous CDK6 and recombinant PFKP or PKM2 with or without Palbociclib (PALBO). 32P-PFKP and 32P-PKM2 denote phosphorylated proteins, IB, immunoblotting.

    Palbociclib purchased from MedChemExpress. Usage Cited in: Mol Oncol. 2017 Aug;11(8):1035-1049.  [Abstract]

    Effects of Palbociclib on CDK4/6-Rb pathway. HCC cells are treated with different doses of Palbociclib for 24 h, and then, the cells are subjected to western blot analysis.

    Palbociclib purchased from MedChemExpress. Usage Cited in: Mol Oncol. 2017 Aug;11(8):1035-1049.  [Abstract]

    Effects of CDK4/6 inhibitors on AMPK phosphorylation and apoptosis-related signals. After 24 h of drug treatment, the cells are subjected to western blot analysis. AMPK phosphorylation level is quantified by the ratio of band intensities of phospho-AMPKα vs. AMPKα.

    Palbociclib purchased from MedChemExpress. Usage Cited in: Mol Oncol. 2017 Aug;11(8):1035-1049.  [Abstract]

    Inhibition of AMPK reverses Palbociclib-induced autophagy and apoptosis. Hep3B cells are incubated with AMPK inhibitor (Compound C, 2.5 μM) for 4 h and then treated with Palbociclib for 24 h. Apoptotic cells are determined by flow cytometry.

    Palbociclib purchased from MedChemExpress. Usage Cited in: Biochim Biophys Acta. 2017 Nov 20;1865(2):354-363.  [Abstract]

    LAPC-4 cells are grown in charcoal-stripped serum medium (CSS) for 24 hours and then stimulated by R1881 alone or with different doses of Palbociclib (PD). Palbociclib is added 30 min before androgen treatment. Cellular expression of all proteins is detected by immunoblotting analysis. β-actin is included as a control for protein loading.

    View All CDK Isoform Specific Products:

    View All Isoforms
    CDK1 CDK2 CDK3 CDK4 CDK5 CDK6 CDK7 CDK8 CDK9 CDK11 CDK12 CDK13 CDK14 CDK16 CDK19 CDC CLK Pho85
    Description

    Palbociclib (PD 0332991) is an orally active selective CDK4 and CDK6 inhibitor with IC50 values of 11 and 16 nM, respectively. Palbociclib has potent anti-proliferative activity and induces cell cycle arrest in cancer cells, which can be used in the research of HR-positive and HER2-negative breast cancer and hepatocellular carcinoma[1][3][4].

    IC50 & Target[1]

    Cdk4/cyclin D3

    9 nM (IC50)

    Cdk4/cyclin D1

    11 nM (IC50)

    Cdk6/cyclin D2

    16 nM (IC50)

    DYRK1A

    2000 nM (IC50)

    MAPK

    8000 nM (IC50)

    In Vitro

    Palbociclib (0-1 μM, 24 h) inhibits Rb Phosphorylation at Ser795 in MDA-MB-435 cells with an IC50 value of 0.063 μM, and obtains similar effects on both Ser780 and Ser795 phosphorylation in the Colo-205 colon carcinoma[1].
    Palbociclib (0-10 μM, 24 h) arrests MDA-MB-453 cells exclusively in G1 phase[1].
    Palbociclib (500 nM, 7 days) increases expression of homologous genes (H2d1, H2k1, and B2m) in MDA-MB-453 and MDA-MB-361 cells[2].
    Palbociclib (0-1 μM, 6 days) inhibits growth of several luminal ER-positive as well as HER2-amplified breast cancer cell lines, with IC50 values ranging from 4 nM to 1 μM[3].
    Palbociclib (0-1 μM, 3 days) inhibits the proliferation of human liver cancer cell lines with IC50 values ranging from 0.01 μM to 3.49 μM, and induces a reversible cell cycle arrest[4].

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

    Palbociclib Related Antibodies

    Cell Cycle Analysis[1]

    Cell Line: MDA-MB-453 cells
    Concentration: 0-1 μM
    Incubation Time: 24 h
    Result: Arrested MDA-MB-453 cells in G1.

    Cell Proliferation Assay[3]

    Cell Line: ER-positive as well as HER2-amplified breast cancer cell lines (MDA-MB-175, ZR-75-30, CAMA-1, etc.)
    Concentration: 0-1 μM
    Incubation Time: 6 days
    Result: Inhibited growth of luminal ER-positive as well as HER2-amplified breast cancer cell lines.
    In Vivo

    Palbociclib (oral adminstration, 75 or 150 mg/kg, daily for 14 days) produces rapid tumor regressions and delays tumor growth[1].
    Palbociclib (oral adminstration, 90 mg/kg, daily for 12 days) reduces Treg numbers and the Treg:CD8 ratio in the spleen and lymph nodes in tumor-free mice, demonstrating the tumor-independent effects[2].
    Palbociclib (oral administration, 100 mg/kg, daily for 1 week) has potent antitumour effects in genetically engineered mosaic mouse model of liver cancer[4].

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

    Animal Model: Mice bearing Colo-205 colon carcinoma xenografts (p16 deleted)[1]
    Dosage: 75, 150 mg/kg, daily for 14 days
    Administration: Oral adminstration
    Result: Produced rapid tumor regressions and a corresponding tumor growth delay of ~50 days.
    Animal Model: Tumor-free female FVB mice[2]
    Dosage: 90 mg/kg (diluted in 50 nM sodium D-lactate), daily for 12 days
    Administration: Oral adminstration
    Result: Reduced total thymic mass and immature CD4+ and CD8+ double-positive thymocytes, and increased the fractions of CD4+ and CD8+ single-positive thymocytes.
    Animal Model: Genetically engineered mosaic mouse model of liver cancer (Myc;p53-sgRNA)[4]
    Dosage: 100 mg/kg, daily for 1 week.
    Administration: Oral adminstration
    Result: Decreased the luminescence signal in liver and delayed tumour growth.
    Clinical Trial
    Molecular Weight

    447.53

    Formula

    C24H29N7O2
    CAS No.

    571190-30-2
    Appearance

    Solid

    Color

    Light yellow to yellow

    SMILES

    O=C1C(C(C)=O)=C(C2=CN=C(N=C2N1C3CCCC3)NC4=CC=C(N5CCNCC5)C=N4)C
    Shipping

    Room temperature in continental US; may vary elsewhere.
    Storage

    4°C, protect from light

    *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

    Solvent & Solubility
    In Vitro: 

    0.1 M HCL : 25 mg/mL (55.86 mM; ultrasonic and adjust pH to 4 with 0.1 M HCL)

    DMSO : 5 mg/mL (11.17 mM; ultrasonic and adjust pH to 5 with HCl; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

    H2O : < 0.1 mg/mL (insoluble)

    Preparing
    Stock Solutions
    Concentration Solvent Mass 1 mg 5 mg 10 mg
    1 mM 2.2345 mL 11.1724 mL 22.3449 mL
    5 mM 0.4469 mL 2.2345 mL 4.4690 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, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

    • Molarity Calculator

    • Dilution Calculator

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

    Mass
    =
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    ×
    Volume
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    Molecular Weight *

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

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

    C1

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    Volume (start)

    V1

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    In Vivo:

    Select the appropriate dissolution method based on your experimental animal and administration route.

    For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
    To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
    The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

    • Protocol 1

      Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

      Solubility: ≥ 2 mg/mL (4.47 mM); Clear solution

      This protocol yields a clear solution of ≥ 2 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

      Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
    • Protocol 2

      Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

      Solubility: ≥ 2 mg/mL (4.47 mM); Clear solution

      This protocol yields a clear solution of ≥ 2 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

      Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.

    For the following dissolution methods, please prepare the working solution directly. It is recommended to prepare fresh solutions and use them promptly within a short period of time.
    The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

    • Protocol 1

      Add each solvent one by one:  0.5% CMC/saline water

      Solubility: 6.67 mg/mL (14.90 mM); Suspended solution; Need ultrasonic and warming and heat to 42°C

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

    Dosage

    mg/kg

    Animal weight
    (per animal)

    g

    Dosing volume
    (per animal)

    μL

    Number of animals

    Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
    Please enter your animal formula composition:
    %
    DMSO +
    % 
    +
    %
    Tween-80 +
    %
    Saline
    Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
    The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
    Calculation results:
    Working solution concentration: mg/mL
    Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).

    *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

    The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
    Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
     If the continuous dosing period exceeds half a month, please choose this protocol carefully.
    Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
    Purity & Documentation

    Purity: 99.94%

    COA (252 KB) HNMR (207 KB) RP-HPLC (184 KB) MS (69 KB)

    Handling Instructions (2659 KB)
    References

    • [1]. Fry DW, et al. Specific inhibition of cyclin-dependent kinase 4/6 by PD 0332991 and associated antitumor activity in human tumor xenografts. Mol Cancer Ther. 2004 Nov;3(11):1427-38.  [Content Brief]

      [2]. Goel S, et al. CDK4/6 inhibition triggers anti-tumour immunity. Nature. 2017 Aug 24;548(7668):471-475.  [Content Brief]

      [3]. Richard S Finn, et al. PD 0332991, a selective cyclin D kinase 4/6 inhibitor, preferentially inhibits proliferation of luminal estrogen receptor-positive human breast cancer cell lines in vitro. Breast Cancer Res. 2009;11(5):R77.  [Content Brief]

      [4]. Bollard J, et al. Palbociclib (PD-0332991), a selective CDK4/6 inhibitor, restricts tumour growth in preclinical models of hepatocellular carcinoma. Gut. 2017 Jul;66(7):1286-1296.  [Content Brief]

    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, 6 months; -20°C, 1 month (protect from light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO / 0.1 M HCL 1 mM 2.2345 mL 11.1724 mL 22.3449 mL 55.8622 mL
    5 mM 0.4469 mL 2.2345 mL 4.4690 mL 11.1724 mL
    10 mM 0.2234 mL 1.1172 mL 2.2345 mL 5.5862 mL
    0.1 M HCL 15 mM 0.1490 mL 0.7448 mL 1.4897 mL 3.7241 mL
    20 mM 0.1117 mL 0.5586 mL 1.1172 mL 2.7931 mL
    25 mM 0.0894 mL 0.4469 mL 0.8938 mL 2.2345 mL
    30 mM 0.0745 mL 0.3724 mL 0.7448 mL 1.8621 mL
    40 mM 0.0559 mL 0.2793 mL 0.5586 mL 1.3966 mL
    50 mM 0.0447 mL 0.2234 mL 0.4469 mL 1.1172 mL
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    Palbociclib Related Classifications

    Help & FAQs

    Keywords:

    Palbociclib571190-30-2PD 0332991PD0332991PD-0332991CDKCyclin dependent kinaseBreast cancerhepatocellular carcinomaHCCestrogen receptorERHER2cell cycleInhibitorinhibitorinhibit

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