2. Metabolic Enzyme/Protease Anti-infection Autophagy Apoptosis
  3. Phosphatase HSV Autophagy Apoptosis
  4. Salubrinal

Salubrinal is a cell-permeable and selective inhibitor of eIF2α dephosphorylation. Salubrinal acts as a dual-specificity phosphatase 2 (Dusp2) inhibitor and suppresses inflammation in anti-collagen antibody-induced arthritis. Salubrinal has antiviral activity against HSV-1 and inhibits dephosphorylation of eIF2α mediated by the HSV-1 protein ICP34.5.

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Salubrinal Chemical Structure

Salubrinal Chemical Structure

CAS No. : 405060-95-9

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Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
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Customer Review

Based on 25 publication(s) in Google Scholar

Salubrinal Related Antibodies

Top Publications Citing Use of Products

    Salubrinal purchased from MedChemExpress. Usage Cited in: Vet Microbiol. 2020 Aug;247:108786.  [Abstract]

    Vero cells are treated with indicated concentrations of Salubrinal for 24 h, then whole cell lysates are collected and subjected to Western blot for eIF2α and P-eIF2α. Salubrinal treatment could block PRV infection-medicated eIF2α dephosphorylation partially.

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    HSV-1 HSV-2 HSV

    • Biological Activity

    • Protocol

    • Purity & Documentation

    • References

    • Customer Review

    Description

    Salubrinal is a cell-permeable and selective inhibitor of eIF2α dephosphorylation[1]. Salubrinal acts as a dual-specificity phosphatase 2 (Dusp2) inhibitor and suppresses inflammation in anti-collagen antibody-induced arthritis[2]. Salubrinal has antiviral activity against HSV-1 and inhibits dephosphorylation of eIF2α mediated by the HSV-1 protein ICP34.5[3].

    IC50 & Target[1][3]

    Dusp2

     

    HSV-1

     

    In Vitro

    Salubrinal, a recently identified PP1 inhibitor capable to protect against endoplasmic reticulum (ER) stress in various model systems, strongly synergized with proteasome inhibitors to augment apoptotic death of different leukemic cell lines. Salubrinal preferentially seems to target the PP1/GADD34 complex, Salubrinal is of interest to examine whether the effect of Salubrinal could also be recapitulated by another inhibitor of this phosphatase. For this purpose cantharidin, wis selected, which is less toxic than okadaic acid, but which also blocks PP1 (IC50=1.7 μM) activities[1].

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

    Salubrinal Related Antibodies
    In Vivo

    Salubrinal is a synthetic chemical that inhibits de-phosphorylation of eukaryotic translation initiation factor 2 alpha (eIF2α). Salubrinal significantly suppresses inflammation of the paws of CAIA mice. For instance, the clinical scores are 1.94±1.7 (placebo) and 0.31±0.6 (Salubrinal) on day 6; and 4.63±3.4 (placebo) and 1.09±1.6 (Salubrinal) on day 12. Consistent with the clinical scores, the thickening of the paws is also reduced in the Salubrinal-treated group. Furthermore, Salubrinal reduces the histological scores from 1.47±1.10 (N=16; placebo) to 0.59±0.64 (N=16; Salubrinal) (p=0.01)[2].

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

    479.80

    Formula

    C21H17Cl3N4OS
    CAS No.
    Appearance

    Solid

    Color

    Light brown to gray

    SMILES

    O=C(NC(NC(NC1=CC=CC2=C1N=CC=C2)=S)C(Cl)(Cl)Cl)/C=C/C3=CC=CC=C3
    Shipping

    Room temperature in continental US; may vary elsewhere.
    Storage

    4°C, protect from light

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

    Solvent & Solubility
    In Vitro: 

    DMSO : 50 mg/mL (104.21 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 2.0842 mL 10.4210 mL 20.8420 mL
    5 mM 0.4168 mL 2.0842 mL 4.1684 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, 2 years; -20°C, 1 year (protect from light). When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

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

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

    This equation is commonly abbreviated as: C1V1 = C2V2

    Concentration (start)

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    In Vivo:

    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:  45% PEG300    5% Tween-80    50% Saline

      Solubility: 10 mg/mL (20.84 mM); Suspended solution; Need ultrasonic

    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: 99.58%

    COA (249 KB) HNMR (183 KB) RP-HPLC (206 KB)

    Handling Instructions (2659 KB)
    References
    Kinase Assay
    [1]

    Phosphatase activities are determined on immunoprecipitates of the phosphatases. Briefly, 2×106 K562 cells are treated for 18 hr with Salubrinal (20 µM), PSI (10 nM), the combination of both drugs or okadaic acid (100 nM). After washing with PBS, cells are lysed for 15 min on ice either in PP1LB (for determination of PP1γ-activity; 20 mM Tris-HCl, pH 7.5, 1% Triton X-100, 10% glycerol, 132 mM NaCl, Roche complete protease inhibitor ) or in RIPA (for PP2A), supplemented with Roche complete protease inhibitor). Cell lysates containing 500 µg (PP1γ) or 300 µg (PP2A) protein are immunoprecipitated overnight at 4°C with 2-3 µg of the appropriate antibodies and then incubated with Protein A-Sepharose. Immunoprecipitates are washed three times in lysis buffer, followed by resuspension in phosphatase assay buffer (PP2A: 20 mM Tris-HCl, pH7.5, 0.1 mM CaCl2; PP1γ: 50 mM Tris HCl pH 7.0, 0.2 mM MnCl2, 0.1 mM CaCl2, 125 µg/mL BSA, 0.05% Tween 20), supplemented with 100 µM 6,8-difluoro-4-methyl-umbelliferyl phosphate (DiFMUP). Precipitates are allowed to react with substrate for 1 hr at 37°C on an Eppendorf Thermoshaker, centrifuged and DiFMU fluorescence is measured on a BioTek Lambda Fluoro 320 microplate reader (360 nmex/460 nmem). Phosphatase activities are given as percent change relative to the control (DMSO treated cells)[1].

    MCE has not independently confirmed the accuracy of these methods. They are for reference only.
    Cell Assay
    [1]

    Cellular viability is assessed by the WST-1 colorimetric assay. Assays are performed on 96 well plates with 2×104 K562 cells/well in triplicate with Salubrinal concentrations ranging from 5-75 µM (total volume of 200 µL, 18 hrs). Untreated cells served as negative control sample[1].

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

    Mice[2]
    Using Balb/c female mice (~nine weeks old), CAIA is induced by intravenous injection of a 2 mg cocktail of ArthritoMAb antibodies on day 0 followed by intraperitoneal injection of 100 µg LPS on day 3. Mice are randomly divided into a placebo group and a Salubrinal-treated group. Salubrinal (2.0 mg/kg) is intravenously administered daily from day 0, while a solvent (49.5% PEG 400 and 0.5% Tween 80 in PBS) is administered to the placebo group.

    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, 2 years; -20°C, 1 year (protect from light). When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

    Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
    DMSO 1 mM 2.0842 mL 10.4210 mL 20.8420 mL 52.1050 mL
    5 mM 0.4168 mL 2.0842 mL 4.1684 mL 10.4210 mL
    10 mM 0.2084 mL 1.0421 mL 2.0842 mL 5.2105 mL
    15 mM 0.1389 mL 0.6947 mL 1.3895 mL 3.4737 mL
    20 mM 0.1042 mL 0.5211 mL 1.0421 mL 2.6053 mL
    25 mM 0.0834 mL 0.4168 mL 0.8337 mL 2.0842 mL
    30 mM 0.0695 mL 0.3474 mL 0.6947 mL 1.7368 mL
    40 mM 0.0521 mL 0.2605 mL 0.5211 mL 1.3026 mL
    50 mM 0.0417 mL 0.2084 mL 0.4168 mL 1.0421 mL
    60 mM 0.0347 mL 0.1737 mL 0.3474 mL 0.8684 mL
    80 mM 0.0261 mL 0.1303 mL 0.2605 mL 0.6513 mL
    100 mM 0.0208 mL 0.1042 mL 0.2084 mL 0.5211 mL
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    Salubrinal 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:

    Salubrinal405060-95-9PhosphataseHSVAutophagyApoptosisHerpes simplex virusInhibitorinhibitorinhibit

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