PF-06840003

Catalog No.S8657 Batch:S865701

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Technical Data

Formula

C12H9FN2O2
 

Molecular Weight 232.21 CAS No. 198474-05-4
Solubility (25°C)* In vitro DMSO 46 mg/mL (198.09 mM)
Ethanol 6 mg/mL (25.83 mM)
Water Insoluble
In vivo (Add solvents to the product individually and in order)
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
20.0mg/ml Taking the 1 mL working solution as an example, add 50 μL of 400 mg/ml clarified DMSO stock solution to 400 μL PEG300, mix evenly to clarify it; add 50 μL Tween80 to the above system, mix evenly to clarify it; then continue to add 500 μL ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
Clear solution
5% DMSO 95% corn oil
0.6mg/ml Taking the 1 mL working solution as an example, add 50 μL of 12 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results. 
* <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 PF-06840003 (EOS200271) is a highly selective orally bioavailable IDO-1 inhibitor. Although it has moderate hIDO1 enzyme inhibition (IC50 0.41 μM), it is a highly efficient compound (LE 0.53, LipE 5.1), driven by its tight packing within the enzyme, as well as the high density of hydrogen bonds it forms with hIDO-1 despite its small size.
Targets
hIDO-1 [1]
(Cell-free)
dIDO-1 [1]
(Cell-free)
mIDO-1 [1]
(Cell-free)
0.41 μM 0.59 μM 1.5 μM
In vitro PF-06840003 is a racemic mixture. The IC50s of PF-06840003 for hIDO-1, mouse IDO-1 and dog IDO-1 are 0.41, 1.5 and 0.59 μM, respectively. It has very weak activity against hTDO-2, with an IC50 of 140 μM. In cellular assays, PF-06840003 shows activity both in the HeLa assay (IC50 1.8 μM) as well as in the LPS/INFγ-stimulated THP1 cells (IC50 1.7 μM). PF-06840003 is a very weak inhibitor of CYPs with IC50 values greater than 100 μM for most major CYP isozymes except 2C19 (IC50 value is 78 μM). Additionally, PF-06840003 does not exhibit metabolism-dependent (time-dependent and NADPH-dependent or time-dependent (NADPH-independent) inhibition of the major CYP enzymes investigated[1].
In vivo PF-06840003 has a predicted half-life of 16−19 h. Oral bioavailability in the mouse and rat was 59 and 94%, respectively, and 19% in dog. PF-06840003 has shown significant antitumor activity in monotherapy in Pan02, B16−F10, CT26, MC38, 4T1, and Renca models (p < 0.05 vs vehicle-treated group) and very good synergy in combination with anti-PDL1 mAb in CT26 model (p < 0.05 vs monotherapy groups).The PK profile of the compound is excellent, with a low/moderate clearance in most preclinical species. The compound also shows good CNS penetration in rat, suggesting potential impact on brain metastases[1].

Protocol (from reference)

Cell Assay:

[1]

  • Cell lines

    HeLa cervical carcinoma cells

  • Concentrations

    0-50 μM

  • Incubation Time

    16-24 h

  • Method

    HeLa cells were harvested from cell culture flasks using 0.25% trypsin/EDTA and neutralized with EMEM growth medium. Following resuspension in fresh growth media, cells were seeded at 20,000 cells per well in 200 μL growth media in a 96-well plate and allowed to adhere at 37 °C at 5% CO2 overnight. The following day, growth media was aspirated and replaced with 200 μL of reduced (2%) serum media containing 100 ng/mL recombinant human interferon gamma (rhIFNγ) and incubated at 37 °C with 5% CO2 for 48 h to induce IDO-1 expression. On day four, compounds were diluted to 10 mM in DMSO and 11-point three-fold dilutions were prepared. rhIFNγ-containing media was removed, and following dilution into EMEM, compounds were added to cells at 50 μM top concentration and allowed to incubate 16−24 h at 37 °C with 5% CO2. On day five of the assay, 100 μL of cell supernatant was transferred to a v-bottom 96-well plate. Thirty microliters of 30% trichloroacetic acid (TCA) was added to each well to precipitate proteins, and plates were centrifuged at 3000 rpm for 10 min. One hundred microliters was transferred to a fresh flat-bottom 96-well plate, and 100 μL/well of 2% 4-(dimethylamino)benzaldehyde (pDMAB) in acetic acid was added to derivatize N-formyl kynurenine to kynurenine for quantitative colorimetric readout. Assay plates were read at A492 on Envision plate reader.

Animal Study:

[1]

  • Animal Models

    CD-1 mice, Wistar−Han rat, and Beagle dog

  • Dosages

    1 mg/kg (IV) and 3 mg/kg (oral)

  • Administration

    i.v./oral

Selleck's PF-06840003 has been cited by 5 publications

25-hydroxyvitamin D3 generates immunomodulatory plasticity in human periodontal ligament-derived mesenchymal stromal cells that is inflammatory context-dependent [ Front Immunol, 2023, 14:1100041] PubMed: 36761739
System analysis based on the cancer-immunity cycle identifies ZNF207 as a novel immunotherapy target for hepatocellular carcinoma [ J Immunother Cancer, 2022, 10(3)e004414] PubMed: 35246476
IL4I1 Is a Metabolic Immune Checkpoint that Activates the AHR and Promotes Tumor Progression [ Cell, 2020, 182(5):1252-1270.e34] PubMed: 32818467
Pleiotropic effects of vitamin D3 on CD4+ T lymphocytes mediated by human periodontal ligament cells and inflammatory environment. [ J Clin Periodontol, 2020,  10.1111/jcpe.13283] PubMed: 32160330
Cytokines Differently Define the Immunomodulation of Mesenchymal Stem Cells From the Periodontal Ligament [ Cells, 2020, 14;9(5):E1222] PubMed: 32423044

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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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