1. Epigenetics
    Stem Cell/Wnt
    JAK/STAT Signaling
    Autophagy
  2. JAK
    Autophagy
  3. Ruxolitinib sulfate

Ruxolitinib sulfate (Synonyms: INCB018424 sulfate)

Cat. No.: HY-50859
Handling Instructions

Ruxolitinib sulfate is the first potent, selective JAK1/2 inhibitor to enter the clinic with IC50s of 3.3 nM/2.8 nM, and has > 130-fold selectivity for JAK1/2 versus JAK3.

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

Ruxolitinib sulfate Chemical Structure

Ruxolitinib sulfate Chemical Structure

CAS No. : 1092939-16-6

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Top Publications Citing Use of Products

    Ruxolitinib sulfate purchased from MCE. Usage Cited in: Cancer Discov. 2018 May;8(5):616-631.

    Analysis of PIM1 RNA and protein expression in HOXA9 positive patient derived xenograft (PDX) samples ex vivo after 1 μM Ruxolitinib over 6 hours.

    Ruxolitinib sulfate purchased from MCE. Usage Cited in: Blood. 2013 Nov 21;122(22):3628-31.

    Ruxolitinib decreases spleen weight. Mice are sacrificed on day 21 or 24 to evaluate spleen size.

    Ruxolitinib sulfate purchased from MCE. Usage Cited in: J Biol Chem. 2015 Nov 27;290(48):29022-34.

    106 autonomous Ba/F3 cells stably transduced with ALL-associated JAK3 mutant V674A or double mutant L857P/Y100A are treated with increasing concentration of Ruxolitinib (0–2 μM). Two hours after treatment, the cells are lysed and subjected to Western blot analysis. Phosphorylation of STAT5, JAK3, and JAK1 is detected using specific anti-pY694 STAT5, anti-pY980/81 JAK3, and anti-pY1034/35 JAK1 antibodies. Membranes are reprobed with anti-STAT5, anti-JAK3, anti-JAK1, and anti-β-actin an

    Ruxolitinib sulfate purchased from MCE. Usage Cited in: Clin Cancer Res. 2018 Apr 15;24(8):1917-1931.

    Jak2 is inhibited by lentiviral expression of Jak2 shRNA or control shRNA in CWR22Pc and CWR22Rv1 cells. Alternatively, cells are treated with Jak2 inhibitors AZD1480 (0.8 μM) and Ruxolitinib (0.4 μM) (72 h), followed by Western blot analysis of Jak2 and active Stat5a/b.

    Ruxolitinib sulfate purchased from MCE. Usage Cited in: Nat Med. 2018 Aug;24(8):1143-1150.

    Immunoblot of pSTAT1, STAT1 and β-actin levels in H69AR cells±200 ng/mL IFNg 10 min pulse followed by 24 h chase in media with DMSO, Ruxolitinib (100 nM) or MRT67307 (1 µM).

    Ruxolitinib sulfate purchased from MCE. Usage Cited in: JCI Insight. 2018 Sep 6;3(17). pii: 120750.

    A431 cells are then treated in full growth media with vehicle, CSA (50 ng/mL), Ruxolitinib (20 μM), or both Ruxolitinib and CSA for 36 hours.

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    Description

    Ruxolitinib sulfate is the first potent, selective JAK1/2 inhibitor to enter the clinic with IC50s of 3.3 nM/2.8 nM, and has > 130-fold selectivity for JAK1/2 versus JAK3.

    IC50 & Target[1]

    JAK2

    2.8 nM (IC50)

    JAK1

    3.3 nM (IC50)

    Tyk2

    19 nM (IC50)

    JAK3

    428 nM (IC50)

    In Vitro

    Ruxolitinib sulfate is the first potent, selective JAK1/2 inhibitor to enter the clinic with IC50s of 3.3 nM/2.8 nM, and has > 130-fold selectivity for JAK1/2 versus JAK3. Ruxolitinib potently and selectively inhibits JAK2V617F-mediated signaling and proliferation, markedly increases apoptosis in a dose dependent manner, and at 64 nM results in a doubling of cells with depolarized mitochondria in Ba/F3 cells. Ruxolitinib demonstrates remarkable potency against erythroid colony formation with IC50 of 67 nM, and inhibits proliferating of erythroid progenitors from normal donors and polycythemia vera patients with IC50 values of 407 nM and 223 nM, respectively[1].

    In Vivo

    Ruxolitinib (180 mg/kg, orally, twice a day) results in survive rate of greater than 90% by day 22 and markedly reduces splenomegaly and circulating levels of inflammatory cytokines, and preferentially eliminated neoplastic cells, resulting in significantly prolonged survival without myelosuppressive or immunosuppressive effects in a JAK2V617F-driven mouse model[1]. In the Ruxolitinib group, the primary end point is reached in 41.9% of patients, as compared with 0.7% in the placebo group in the double-blind trial of myelofibrosis. Ruxolitinib results in maintaining of reduction in spleen volume and improvement of 50% or more in the total symptom score[2]. Ruxolitinib (15 mg twice daily) treatment leads a total of 28% of the patients to have at least a 35% reduction in spleen volume at week 48 in patients with myelofibrosis, as compared with 0% in the group receiving the best available therapy. The mean palpable spleen length has decreased by 56% with Ruxolitinib but has increased by 4% with the best available therapy at week 48. Patients in the ruxolitinib group has an improvement in overall quality-of-life measures and a reduction in symptoms associated with myelofibrosis[3].

    Clinical Trial
    Molecular Weight

    404.44

    Formula

    C₁₇H₂₀N₆O₄S

    CAS No.

    1092939-16-6

    SMILES

    [H][[email protected]@](C1CCCC1)(N2N=CC(C3=C4C=CNC4=NC=N3)=C2)CC#N.O=S(O)(O)=O

    Shipping

    Room temperature in continental US; may vary elsewhere.

    Storage

    Please store the product under the recommended conditions in the Certificate of Analysis.

    References
    Kinase Assay
    [1]

    Recombinant proteins are expressed using Sf21 cells and baculovirus vectors and purified with affinity chromatography. JAK kinase assays use a homogeneous time-resolved fluorescence assay with the peptide substrate (-EQEDEPEGDYFEWLE). Each enzyme reaction is carried out with Ruxolitinib or control, JAK enzyme, 500 nM peptide, adenosine triphosphate (ATP; 1mM), and 2% dimethyl sulfoxide (DMSO) for 1 hour. The 50% inhibitory concentration (IC50) is calculated as Ruxolitinib concentration required for inhibition of 50% of the fluorescent signal[1].

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

    Cell Assay
    [1]

    Cells are seeded at 2 × 103/well of white bottom 96-well plates, treated with Ruxolitinib from DMSO stocks (0.2% final DMSO concentration), and incubated for 48 hours at 37°C with 5% CO2. Viability is measured by cellular ATP determination using the Cell-Titer Glo luciferase reagent or viable cell counting. Values are transformed to percent inhibition relative to vehicle control, and IC50 curves are fitted according to nonlinear regression analysis of the data using PRISM GraphPad[1].

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

    Animal Administration
    [1]

    Mice[1]
    Mice are fed standard rodent chow and provided with water ad libitum. Ba/F3-JAK2V617F cells (105 per mouse) are inoculated intravenously into 6- to 8-week-old female BALB/c mice. Survival is monitored daily, and moribund mice are humanely killed and considered deceased at time of death. Treatment with vehicle (5% dimethyl acetamide, 0.5% methocellulose) or Ruxolitinib begin within 24 hours of cell inoculation, twice daily by oral gavage. Hematologic parameters are measured using a Bayer Advia120 analyzed, and statistical significance is determined using Dunnett testing[1].

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

    References
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