2. Apoptosis
  3. Caspase
  4. Z-IETD-FMK

Z-IETD-FMK  (Synonyms: Z-IE(OMe)TD(OMe)-FMK)

Cat. No.: HY-101297 Purity: ≥98.0%
COA Handling Instructions

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Z-IETD-FMK (Z-IE(OMe)TD(OMe)-FMK) est un inhibiteur de caspase-8 qui est sélectif et perméable aux cellules. Z-IETD-FMK est également un inhibiteur de granzyme B.

Z-IETD-FMK (Z-IE(OMe)TD(OMe)-FMK) is a selective and cell permeable caspase-8 inhibitor. Z-IETD-FMK is also a granzyme B inhibitor.

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

Custom Peptide Synthesis

Z-IETD-FMK Chemical Structure

Z-IETD-FMK Chemical Structure

CAS No. : 210344-98-2

Size Price Stock Quantity
1 mg USD 168 In-stock
5 mg USD 360 In-stock
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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 47 publication(s) in Google Scholar

Z-IETD-FMK Related Antibodies

Top Publications Citing Use of Products

46 Publications Citing Use of MCE Z-IETD-FMK

WB

    Z-IETD-FMK purchased from MedChemExpress. Usage Cited in: Food Chem Toxicol. 2018 Oct;120:143-154.  [Abstract]

    Z-IETD-FMK remarkably decreases the dioscin-induced up regulation of Caspase-3

    View All Caspase Isoform Specific Products:

    View All Isoforms
    Caspase 1 Caspase 2 Caspase 3 Caspase 4 Caspase 5 Caspase 6 Caspase 7 Caspase 8 Caspase 9 Caspase 10 Caspase 12 Caspase Caspase 11 Caspase-13

    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Z-IETD-FMK (Z-IE(OMe)TD(OMe)-FMK) is a selective and cell permeable caspase-8 inhibitor[1]. Z-IETD-FMK is also a granzyme B inhibitor[5].

    IC50 & Target[1]

    Caspase-8

     

    In Vitro

    T-cellZ-IETD-FMK causes full inhibition only of the proapoptotic effect of TNFα with an IC50 of 0.46 μM[1]. Z-IETD-FMK and Z-VAD-FMK at non-toxic doses are found to be immunosuppressive and inhibit human T cell proliferation induced by mitogens and IL-2. They are shown to block NF-κB in activated primary T cells, but have little inhibitory effect on the secretion of IL-2 and IFN-γ during T cell activation[2]. Z-IETD-FMK inhibits the cleavage of caspase-8 and only partially inhibits the cleavage of caspase-3 and PARP. Z-IETD-FMK can prevent the execution of apoptosis in retinal cells exposed to different apoptotic stimuli[3].

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

    Z-IETD-FMK Related Antibodies
    In Vivo

    Pharmacological inhibition of caspase-8 by z-IETD-FMK robustly reduces tumor growth and this is closely associated with a reduction in the release of pro-inflammatory cytokines, IL-6, TNF-α, IL-18, IL-1α, IL-33, but not IL-1β. Furthermore, inhibition of caspase-8 reduces the recruitment of innate suppressive cells, such as myeloid-derived suppressor cells, but not of regulatory T cells to lungs of tumor-bearing mice[4].

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

    654.68

    Formula

    C30H43FN4O11
    CAS No.
    Appearance

    Solid

    Color

    White to light yellow

    Sequence

    Z-Ile-Glu-Thr-Asp-FMK
    Sequence Shortening

    ZIETDFMK
    Shipping

    Room temperature in continental US; may vary elsewhere.
    Storage

    Sealed storage, away from moisture

    Powder -80°C 2 years
    -20°C 1 year

    *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

    Solvent & Solubility
    In Vitro: 

    DMSO : 41.67 mg/mL (63.65 mM; Need ultrasonic; 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 1.5275 mL 7.6373 mL 15.2746 mL
    5 mM 0.3055 mL 1.5275 mL 3.0549 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 (sealed storage, away from moisture). 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
    =
    Concentration
    ×
    Volume
    ×
    Molecular Weight *

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

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

    C1

    ×
    Volume (start)

    V1

    =
    Concentration (final)

    C2

    ×
    Volume (final)

    V2

    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: ≥ 2.08 mg/mL (3.18 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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: ≥ 2.08 mg/mL (3.18 mM); Clear solution

      This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).

      Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
    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 (sealed storage, away from moisture)

    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: ≥98.0%

    COA (248 KB) HNMR (302 KB) MS (70 KB)

    Handling Instructions (2659 KB)
    References
    Cell Assay
    [2]

    T cell proliferation following mitogen stimulation is determined using [3H]-thymidine incorporation. In brief, PBMCs or purified T cells are seeded at 1×106 cells/mL in 96 well plates and stimulated with either PHA (5 μg/mL or co-stimulated with anti-CD3 mAb (5 μg/mL) and anti-CD28 mAb (2.5 μg/mL) in the presence or absence of caspase inhibitor Z-IETD-FMK. The cells are cultured for 72 h with the last 16 h pulsed with [[3H]-labelled methyl-thymidine (0.037 MBq) prior to harvest onto glass fibre filter mats using a Tomtec automated multi-well harvester[2].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    Animal Administration
    [4]

    Mice: Mice are divided into three groups: (1) naive, non-treated, mice; (2) CTR (control), i.t. instilled with NMU; and (3) lung cancer-bearing mice treated with Z-IETD-FMK (0.5 μg per mouse). The involvement of caspase-8 in lung cancer development is the determined at different time points (3, 7 and 28 days)[4].

    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, 6 months; -20°C, 1 month (sealed storage, away from moisture). 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 1 mM 1.5275 mL 7.6373 mL 15.2746 mL 38.1866 mL
    5 mM 0.3055 mL 1.5275 mL 3.0549 mL 7.6373 mL
    10 mM 0.1527 mL 0.7637 mL 1.5275 mL 3.8187 mL
    15 mM 0.1018 mL 0.5092 mL 1.0183 mL 2.5458 mL
    20 mM 0.0764 mL 0.3819 mL 0.7637 mL 1.9093 mL
    25 mM 0.0611 mL 0.3055 mL 0.6110 mL 1.5275 mL
    30 mM 0.0509 mL 0.2546 mL 0.5092 mL 1.2729 mL
    40 mM 0.0382 mL 0.1909 mL 0.3819 mL 0.9547 mL
    50 mM 0.0305 mL 0.1527 mL 0.3055 mL 0.7637 mL
    60 mM 0.0255 mL 0.1273 mL 0.2546 mL 0.6364 mL
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    Z-IETD-FMK Related Classifications

    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:

    Z-IETD-FMK210344-98-2Z-IE(OMe)TD(OMe)-FMKCaspaseInhibitorinhibitorinhibit

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