Fedratinib (SAR302503, TG101348)
Catalog No.S2736
Molecular Weight(MW): 524.68
Fedratinib (SAR302503, TG101348) is a selective inhibitor of JAK2 with IC50 of 3 nM in cell-free assays, 35- and 334-fold more selective for JAK2 versus JAK1 and JAK3. Phase 2.
4 Customer Reviews
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Colony-forming assay results showing that the Jak2 inhibitor TG101348 reduces CFU-GM colonies generated from mutant fetal liver R2 cells. Results from 4 independent control or mutant fetal livers treated with TG101348 or dimethylsulfoxide (DMSO) are shown (mean ?SD). ***P < .001.
Blood 2014 123(20), 3175-84. Fedratinib (SAR302503, TG101348) purchased from Selleck.
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Janus kinase (JAK) 1/2 inhibitors increase vesicular stomatitis virus-green fluorescent protein (VSV-GFP) susceptibility in SCC25 cells. Representative photographs of VSV infection in treated cells with and without JAK1/2 inhibitors.
Cancer Gene Ther 2013 20, 582-9. Fedratinib (SAR302503, TG101348) purchased from Selleck.
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Claude HAAN Université du Luxembour. Fedratinib (SAR302503, TG101348) purchased from Selleck.
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Effects of JAK2, STAT3, and STAT1 inhibitor on surface and total expression of PD-L1 in the lung adenocarcinoma cell line HCC4006. JAK2 inhibition suppresses surface and whole expression of PD-L1 in HCC4006 cells. HCC4006 cells were treated for 48 hours with the JAK2 pharmacological inhibitor TG101348 (200 nM or 500 nM) or DMSO. Surface (A) and total (B) expression of PD-L1 were evaluated by flow cytometry. Results are representative of five independent experiments. STAT3 inhibition suppresses total expression of PD-L1 in HCC4006 cells but has no effect on surface expression of PD-L1. HCC4006 cells were treated for 48 hours with the STAT3 pharmacological inhibitor BP-1-102 (0.5 μM or 5 μM) or DMSO. Surface (C) and total (D) expression of PD-L1 were evaluated by flow cytometry. Results are representative of four independent experiments. Asterisks indicate statistically significant differences between the experimental and DMSO-treated cells (*p < 0.05, **p < 0.01, ***p < 0.001).
J Thorac Oncol, 2016, 11(1):62-71. Fedratinib (SAR302503, TG101348) purchased from Selleck.
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Biological Activity
| Description | Fedratinib (SAR302503, TG101348) is a selective inhibitor of JAK2 with IC50 of 3 nM in cell-free assays, 35- and 334-fold more selective for JAK2 versus JAK1 and JAK3. Phase 2. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| In vitro |
TG-101348 also significantly inhibits JAK2 V617F, Flt3, and Ret with IC50 of 3 nM, 15 nM, and 48 nM, respectively. TG101348 has an IC50 ~300-fold higher for the closely related JAK3 and is a less potent inhibitor of the JAK1 and TYK2 family members. TG101348 inhibits proliferation of a human erythroblast leukemia (HEL) cell line that harbors the JAK2V617F mutation, as well as a murine pro-B cell line expressing human JAK2V617F (Ba/F3 JAK2V617F), with IC50 of 305 nM and 270 nM, respectively. TG-101348 also inhibits proliferation of parental Ba/F3 cells to a comparable level, with IC50 of ~420 nM. TG101348 treatment reduces STAT5 phosphorylation at concentrations that parallel the concentrations required to inhibit cell proliferation. TG101348 induces apoptosis in both HEL and Ba/F3 JAK2V617F cells in a dose-dependent manner. TG101348 does not show proapoptotic activity in control normal human dermal fibroblasts at concentrations up to 10 μM, and the antiproliferative IC50 against fibroblasts is >5 μM. [1] TG101348 treatment decreases GATA-1 expression, which is associated with erythroid-skewing of JAK2V617F+ progenitor differentiation, and inhibits STAT5 as well as GATA S310 phosphorylation. [2] TG101348 inhibits the proliferation of HMC-1.1 (KITV560G) cells, with somewhat lower potency than HMC-1.2 (KITD816V, KITV560G) cells, with IC50 of 740 nM and 407 nM, respectively. [3] |
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| Cell Data |
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| In vivo | TG101348 has potential for efficacious treatment of JAK2V617F-associated myeloproliferative diseases (MPD). In treated animals, there is a statistically significant reduction in hematocrit and leukocyte count, a dose-dependent reduction/elimination of extramedullary hematopoiesis, and, at least in some instances, evidence for attenuation of myelofibrosis, correlated with surrogate endpoints, including reduction/elimination of JAK2V617F disease burden, suppression of endogenous erythroid colony formation, and in vivo inhibition of JAK-STAT signal transduction. There are no apparent toxicities and no effect on T cell number. [1] Oral administration of TG101348 (120 mg/kg) significantly inhibits PV progenitor erythroid differentiation in vivo. [2] |
Protocol
| Kinase Assay:[1] |
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Cell-free Kinase Activity Assays: IC50 values for TG101348 are determined commercially using the InVitrogen kinase profiling service for a 223 kinase screen that included JAK2 and JAK2V617F or Carna Biosciences for the screen of all Janus kinase family members including JAK1 and Tyk2. ATP concentration is set to approximately the Km value for each kinase. |
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| Cell Research:[1] |
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| Animal Research:[1] |
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Solubility (25°C)
| In vitro | DMSO | 100 mg/mL (190.59 mM) |
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| Water | Insoluble | |
| Ethanol | Insoluble | |
| In vivo | Add solvents to the product individually and in order(Data is from Selleck tests instead of citations): 1% DMSO+30% polyethylene glycol+1% Tween 80 For best results, use promptly after mixing. |
30 mg/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 | 524.68 |
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| Formula | C27H36N6O3S |
| CAS No. | 936091-26-8 |
| Storage | powder |
| in solvent | |
| Synonyms | N/A |
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Clinical Trial Information
| NCT Number | Recruitment | Conditions | Sponsor/Collaborators | Start Date | Phases |
|---|---|---|---|---|---|
| NCT03755518 | Recruiting | Primary Myelofibrosis|Thrombocytosis | Celgene|Impact Biomedicines Inc. a wholly owned subsidiary of Celgene Corporation | February 28 2019 | Phase 3 |
| NCT03755518 | Recruiting | Primary Myelofibrosis|Thrombocytosis | Celgene|Impact Biomedicines Inc. a wholly owned subsidiary of Celgene Corporation | February 28 2019 | Phase 3 |
| NCT01836705 | Completed | Neoplasm Malignant | Sanofi | May 2013 | Phase 1 |
| NCT01836705 | Completed | Neoplasm Malignant | Sanofi | May 2013 | Phase 1 |
| NCT01762462 | Completed | Hepatic Impairment | Sanofi | December 2012 | Phase 1 |
| NCT01762462 | Completed | Hepatic Impairment | Sanofi | December 2012 | Phase 1 |
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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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