Adezmapimod (SB203580)

Catalog No.S1076 Batch:S107615

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Technical Data

Formula

C21H16FN3OS

Molecular Weight 377.43 CAS No. 152121-47-6
Solubility (25°C)* In vitro DMSO 75 mg/mL (198.71 mM)
Water Insoluble
Ethanol Insoluble
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description Adezmapimod (SB203580, RWJ 64809, PB 203580) is a p38 MAPK inhibitor with IC50 of 0.3-0.5 μM in THP-1 cells, 10-fold less sensitive to SAPK3(106T) and SAPK4(106T) and blocks PKB phosphorylation with IC50 of 3-5 μM. SB203580 induces mitophagy and autophagy.
Targets
p38 MAPK [1]
(THP-1 cells)
PKB [1]
(THP-1 cells)
0.3 μM-0.5 μM 3 μM-5 μM
In vitro

SB203580 inhibits the IL-2-induced proliferation of primary human T cells, murine CT6 T cells, or BAF F7 B cells with an IC50 of 3–5 μm. SB203580 also inhibits IL-2-induced p70S6 kinase activation, although the concentration required is slightly higher with an IC50 above 10 μm. SB203580 also inhibits the activity of PDK1 in a dose-dependent manner with an IC50 in the 3–10 μm range. [1] SB203580 inhibits p38-MAPK stimulation of MAPKAPK2 with an IC50 of approximately 0.07 μM, whereas inhibits total SAPK/JNK activity with an IC50 of 3–10 μM. SB203580 at higher concentrations activates the ERK pathway, which subsequently enhances NF-κB transcriptional activity. [2] SB203580 induces autophagy in human hepatocellular carcinoma (HCC) cells. [3]

In vivo

SB203580 protects pig myocardium against ischemic injury in an in vivo model. [4]SB203580 is effective to prevent and treat the disease in MRL/lpr mice model of Systemic lupus erythematosus (SLE). [5]

Features First reported p38 inhibitor.

Protocol (from reference)

Kinase Assay:

[1]

  • Cellular receptor kinase phosphorylation assay

    4 μg of sheep anti-PKBα is immobilized on 25 μL of protein G-Sepharose overnight (or 1.5 hours) and washed in Buffer A (50 mm Tris, pH 7.5, 1 mm EDTA, 1 mm EGTA, 0.5 mm Na3VO4, 0.1% β-mercaptoethanol, 1% Triton X-100, 50 mm sodium fluoride, 5 mm sodium pyrophosphate, 0.1 mm phenylmethylsulfonyl fluoride, 1 μg/mL pepstatin, leupeptin, and 1 μm microcystin). The immobilized anti-PKB is then incubated with 0.5 ml of lysate (from 5 × 106 cells) for 1.5 hours and washed three times in 0.5 mL of Buffer A supplemented with 0.5 m NaCl, two times in 0.5 mL of Buffer B (50 mm Tris-HCl, pH 7.5, 0.03% (w/v) Brij-35, 0.1 mm EGTA, and 0.1% β-mercaptoethanol), and twice with 100 μl of assay dilution buffer; 5× assay dilution buffer is 100 mm MOPS, pH 7.2, 125 mm β-glycerophosphate, 25 mm EGTA, 5 mm sodium orthovanadate, 5 mm DTT. To the PKB enzyme immune complex is added 10 μL of assay dilution buffer, 40 μm protein kinase A inhibitor peptide, 100 μm PKB-specific substrate peptide, and 10 μCi of [γ-32P]ATP, all made up in assay dilution buffer. The reaction is incubated for 20 minutes at room temperature with shaking, then samples are pulse spun, and 40 μL of reaction volume are removed into another tube to which is added 20 μL of 40% trichloroacetic acid to stop the reaction. This is mixed and incubated for 5 minutes at room temperature, and 40 μL is transferred onto P81 phosphocellulose paper and allowed to bind for 30 seconds. The P81 piece is washed three times in 0.75% phosphoric acid then in acetone at room temperature. γ-32P incorporation is then measured by scintillation counting.

Cell Assay:

[1]

  • Cell lines

    CT6 cell , BA/F3 F7 cell

  • Concentrations

    0–30 μM

  • Incubation Time

    1 hour

  • Method

    CT6 cell and BA/F3 F7 cell are rested by washing three times in RPMI and culturing overnight in RPMI, 5% fetal calf serum in the absence of growth factor, antibiotics, or β-mercaptoethanol supplements. 2–5 × 106 rested CT6 cells are resuspended in 2 mL of RPMI, 5% fetal calf serum and preincubated with SB203580 or vehicle control as indicated in figure legends. Cells are then stimulated with 20 ng/ml recombinant human IL-2 for 5 minutes at 37  °C and pelleted in a minifuge for 30 seconds, medium is aspirated, and the pellet is lysed in the appropriate buffer. BA/F3 cells stably expressing deletion mutants of IL-2 receptor β chain are maintained in glutamine containing RPMI further supplemented with 5% fetal calf serum and 0.2 μg/mL G418. The cells are then washed extensively, rested overnight, and washed again before activating with IL-2; such cell preparations are >90% T cells. Cellular proliferation assays are performed by measurement of [3H]thymidine incorporation.

Animal Study:

[5]

  • Animal Models

    Systemic lupus erythematosus (SLE) are established in female MRL/lpr mice and female C57BL/6 mice

  • Dosages

    0.1 M/day

  • Administration

    Orally administered

Customer Product Validation

Data from [J Biol Chem, 2010, 285, 32824-32833]

Data from [J Biol Chem, 2010, 285, 32824–32833]

Data from [J Biol Chem, 2010, 285, 32824–32833]

Data from [Data independently produced by , , Science, 2018, 11(525), doi: 10.1126/scisignal.aao3428]

Selleck's Adezmapimod (SB203580) has been cited by 976 publications

Phosphorylation of human glioma-associated oncogene 1 on Ser937 regulates Sonic Hedgehog signaling in medulloblastoma [ Nat Commun, 2024, 15(1):987] PubMed: 38307877
Kisspeptin-10 binding to Gpr54 in osteoclasts prevents bone loss by activating Dusp18-mediated dephosphorylation of Src [ Nat Commun, 2024, 15(1):1300] PubMed: 38346942
Hyperglycemia activates FGFR1 via TLR4/c-Src pathway to induce inflammatory cardiomyopathy in diabetes [ Acta Pharm Sin B, 2024, 14(4):1693-1710] PubMed: 38572108
Sprouty1 is a broad mediator of cellular senescence [ Cell Death Dis, 2024, 15(4):296] PubMed: 38670941
Bach2 repression of CD36 regulates lipid-metabolism-linked effector functions in follicular B cells [ Cell Rep, 2024, 43(11):114878] PubMed: 39412989
The chromodomain protein CDYL confers forebrain identity to human cortical organoids by inhibiting neuronatin [ Cell Rep, 2024, 43(10):114814] PubMed: 39378153
Bactericidal/permeability-increasing protein instructs dendritic cells to elicit Th22 cell response [ Cell Rep, 2024, 43(3):113929] PubMed: 38457343
Interferon-γ induces combined pyroptotic angiopathy and APOL1 expression in human kidney disease [ Cell Rep, 2024, 43(6):114310] PubMed: 38838223
Suppression of Skp2 contributes to sepsis-induced acute lung injury by enhancing ferroptosis through the ubiquitination of SLC3A2 [ Cell Mol Life Sci, 2024, 81(1):325] PubMed: 39079969
Increased expression of Cathepsin C in airway epithelia exacerbates airway remodeling in asthma [ JCI Insight, 2024, e181219] PubMed: 39436705

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

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