Ruxolitinib (INCB018424)
Catalog No.S1378
Molecular Weight(MW): 306.37
Ruxolitinib (INCB018424) is the first potent, selective, JAK1/2 inhibitor to enter the clinic with IC50 of 3.3 nM/2.8 nM in cell-free assays, >130-fold selectivity for JAK1/2 versus JAK3.
9 Customer Reviews
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a, Phospho- and total STAT1 in MDA-MB-453 cells treated with abemaciclib with or without ruxolitinib for 7 days.
Nature, 2017, 548(7668):471-475. Ruxolitinib (INCB018424) purchased from Selleck.
j,k, Gene expression ofMYOCD (j) and ACTA2 ( SMA, k) after applying inhibitors of key components involved in the DDR2 downstream signalling pathway to HSCs cultured within 3D collagen matrix subjected to stretching (ST) (n=3, one-way ANOVA, **P=0.0036, ****P<0.0001). l,m, Expression of SMA was significantly reduced after treatment with related inhibitors in early-stage FμNs. (n=4, one-way ANOVA, ***P=0.001, ****P<0.0001). JAK2-i: INCB018424
Nature Materials, 2017, 16:1252-1261.. Ruxolitinib (INCB018424) purchased from Selleck.
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Representative images of human neutrophils from healthy controls stimulated with PMA (10 nM) after 150 min of ex vivo pretreatment with DMSO, ruxolitinib (300 nM), or GSK484 (PAD4 inhibitor,10 μM). Scale bar, 50 μm.
Science, 2018, 10(436), doi: 10.1126/scitranslmed.aan8292. Ruxolitinib (INCB018424) purchased from Selleck.
Scratching behavior (I), ear thickness measurement (J), representative H&E histopathology (K), and histology score (L) of vehicle control and Rux-treated mice on day 7, n R 10 mice per group. Scale bars indicate 100 mm. Data are represented as mean ± SEM.
Cell, 2017, 171(1):217-228. Ruxolitinib (INCB018424) purchased from Selleck.
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STAT3 phosphorylation as determined by phospho flow, mixed lymphocyte reactions containing BALB/c spleen-derived CD4+ T cells co-cultured with or without C57BL/6 BM-derived DC preactivated with 20 ng/mL LPS.
Blood 2014 123(24), 3832-42. Ruxolitinib (INCB018424) purchased from Selleck.
BMDMs were isolated from wild-type mice and incubated in the different concentrations of Ruxolitinib for 1 h before stimulation with 500 U/ml IFN-β for 30 min. Levels of GAPDH as well as total and phospho-Tyr705 STAT3 were determined by immunoblotting.
J Immunol 2012 189(6), 2784-92. Ruxolitinib (INCB018424) purchased from Selleck.
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Miniscule 10 PFU amount of VA7-EGFP results in productive infection only in CT26LacZ cells whereas the self-limiting infection can be rescued with JAK/STAT inhibitor Ruxolitinib in CT26WT cells counteracting also the effects of exogenous IFNβ (100 U/ml) pre-treatment. Scale bar: 200 um.
Gene Ther 2014 10.1038/gt.2014.83. Ruxolitinib (INCB018424) purchased from Selleck.
INCB018424 administration reverses the protective effects of ALA on ONC retinas. A-C: Representative micrographs (200× magnification) of retinal whole mounts obtained from three groups stained with anti-RNA-binding protein with multiple splicing (Rbpms) antibody (green). Sampling location: 2 mm temporal to the optic disc. Sampling field size: 439 × 330 μm2 (20× objective lens). Scale bar: 50 μm. D: Quantitative analysis of Rbpms-positive cells under different experimental conditions (mean ± standard error of the mean [SEM], n = 6 per group). The average number of Rbpms-positive cells/mm2 was calculated. ONC = optic nerve crush animal; ALA-ONC = alpha lipoic acid (ALA) animal pretreated 1 day before ONC; ALA-ONC+I = ALA animal pretreated 1 day before ONC, followed by INCB018424. *** p<0.001, ** p<0.01 compared to the ONC group, ### p<0.001 compared to the ALA-ONC group at the same time point
Mol Vis, 2016, 22:1122-1136. Ruxolitinib (INCB018424) purchased from Selleck.
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HS578T cells were treated with indicated amount of inhibitor for 18 hr. The cells were lysed by cell lysis buffer (20 mM Tris-Cl (pH 8.0); 0.5 M NaCl; 0.25% Triton X-100; 1 mM EDTA; 1 mM EGTA; 10 mM β-glycerophosphate; 10 mM NaF; 300 µM Na3VO4; 1 mM benzamidine) containing 1 mM DTT and 2 µM PMSF. Western blot analyses were performed using cleared cell lysates resolved on sodium dodecyl sulfate (SDS)-polyacrylamide gels, transferred onto polyvinylidene difluoride (PVDF) membranes (Millipore, Billerica, MA), and probed with specific antibodies using standard procedures. Chemiluminescence reagent was purchased from Thermo Scientific (Rockford, IL). Horseradish peroxidase-conjugated secondary antibodies from Sigma (St. Louis, MO).
Yong Weon Yi Georgetown University. Ruxolitinib (INCB018424) purchased from Selleck.
Purity & Quality Control
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Biological Activity
| Description | Ruxolitinib (INCB018424) is the first potent, selective, JAK1/2 inhibitor to enter the clinic with IC50 of 3.3 nM/2.8 nM in cell-free assays, >130-fold selectivity for JAK1/2 versus JAK3. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| In vitro |
INCB018424 potently and selectively inhibits JAK2V617F-mediated signaling and proliferation in Ba/F3 cells and HEL cells. INCB018424 markedly increases apoptosis in a dose dependent manner in Ba/F3 cells. INCB018424 (64 nM) results in a doubling of cells with depolarized mitochondria in Ba/F3 cells. INCB018424 inhibits proliferating of erythroid progenitors from normal donors and polycythemia vera patients with IC50 of 407 nM and 223 nM, respectively. INCB018424 demonstrates remarkable potency against erythroid colony formation with IC50 of 67nM. [1] |
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| Cell Data |
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| In vivo | INCB018424 (180 mg/kg, orally, twice a day) results in survive rate of greater than 90% by day 22 in a JAK2V617F-driven mouse model. INCB018424 (180 mg/kg, orally, twice a day) 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] The primary end point is reached in 41.9% of patients in the Ruxolitinib group 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] A total of 28% of the patients in the Ruxolitinib (15 mg twice daily) group has 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] |
Protocol
| Kinase Assay:[1] |
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Binding assay: 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 INCB018424 concentration required for inhibition of 50% of the fluorescent signal. |
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| Cell Research:[1] |
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| Animal Research:[1] |
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Solubility (25°C)
| In vitro | DMSO | 61 mg/mL (199.1 mM) |
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| Ethanol | 61 mg/mL (199.1 mM) | |
| Water | Insoluble | |
| In vivo | Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): 2% DMSO+30% PEG 300+ddH2O For best results, use promptly after mixing. |
5mg/mL |
* 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.
Chemical Information
| Molecular Weight | 306.37 |
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| Formula | C17H18N6 |
| CAS No. | 941678-49-5 |
| Storage | powder |
| in solvent | |
| Synonyms | N/A |
Bio Calculators
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Dilution Calculator
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Molecular Weight Calculator
Enter the chemical formula of a compound to calculate its molar mass and elemental composition:
Tip: Chemical formula is case sensitive. C10H16N2O2 c10h16n2o2
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Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). (1 u is equal to 1/12 the mass of one atom of carbon-12)
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Molarity Calculator
Clinical Trial Information
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT03041636 | Recruiting | Malignant Neoplasms Stated as Primary Lymphoid Haematopoietic|Other Diseases of Blood and Blood-Forming Organs|Chronic Lymphocytic Leukemia|Small Lymphocytic Lymphoma | M.D. Anderson Cancer Center|Incyte Corporation | March 8 2017 | Phase 2 |
| NCT03012230 | Recruiting | Breast Carcinoma Metastatic in the Bone|Estrogen Receptor Negative|HER2/Neu Negative|Progesterone Receptor Negative|Recurrent Breast Carcinoma|Stage IV Breast Cancer|Triple-Negative Breast Carcinoma | Mayo Clinic|National Cancer Institute (NCI) | December 6 2017 | Phase 1 |
| NCT02226172 | Terminated | Primary Myelofibrosis; Post-polycythemia Vera Myelofibrosis; Post-essential Thrombocythemia Myelofibrosis | Pfizer | October 6 2014 | Phase 2 |
| NCT01969838 | Active not recruiting | Primary Myelofibrosis|Post-Polycythemia Vera Myelofibrosis|Post-Essential Thrombocythemia Myelofibrosis | Gilead Sciences | December 6 2013 | Phase 3 |
| NCT03571321 | Not yet recruiting | Acute Lymphoblastic Leukemia|ALL Childhood|ALL | University of Chicago|Incyte Corporation | September 5 2019 | Phase 1 |
| NCT03616184 | Recruiting | Graft-versus-host-disease (GVHD) | University of Nebraska | September 5 2018 | Phase 2 |
Tech Support
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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Frequently Asked Questions
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Question 1:
What is the difference between S2902 and S1378 which seem to have same structure formula according to the product information?
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Answer:
These two chemicals are the two different chiral forms of Ruxolitinib. S2902 S-Ruxolitinib is the S form and S1378 Ruxolitinib is the D form. One of the carbon atoms in this molecule is asymmetric, making the two molecules mirror images of each other. The biological activities of these two molecules can be very different because of the confirmation differences.
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Question 2:
How about the half-life of the compound (Ruxolitinib)? How long is the duration of the inhibitory effect on JAK-STAT signaling?
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Answer:
The half-life of this compound in body is about 2~3 hours according to previous study. Generally, it is longer in vitro culture medium than in vivo. In paper, Ruxolitinib was also used for 24hours. http://www.bloodjournal.org/cgi/pmidlookup?view=long&pmid=24711661.
