A potent ATP mimetic that inhibits both JAK1 and JAK2 with IC50 values of 2.7 and 4.5 nM

Ruxolitinib – 25 mg

Brand:
Cayman
CAS:
941678-49-5
Storage:
-20
UN-No:
Non-Hazardous - /

Janus-associated kinases (JAKs) are cytoplasmic tyrosine kinases that are required for activating the signaling of certain cytokines and growth factor receptors.{19346,20362} A JAK2 gene fusion mutation, JAK2V617F, that causes unchecked activation of various growth factors and cytokines, has been linked to myeloproliferative neoplasms (MPNs), including polycythemia vera, essential thrombocythemia, and primary myelofibrosis.{21781} Ruxolitinib is a potent ATP mimetic that inhibits both JAK1 and JAK2 with IC50 values of 2.7 and 4.5 nM, respectively and is relatively less selective for JAK3 (IC50 = 322 nM).{21781} It can block interleukin-6 (IL-6) signaling (IC50 = 281 nM) and proliferation of JAK2V617F+ Ba/F3 cells (IC50 = 127 nM).{21782} In primary cultures, ruxolitinib preferentially suppresses erythroid progenitor colony formation from JAK2V617F+ polycythemia vera patients (IC50 = 67 nM) versus healthy donors (IC50 > 400 nM).{21782} In a mouse model of JAK2V617F+ MPN, 90 mg/kg ruxolitinib reduced splenomegaly, decreased circulating levels of IL-6 and TNF-α, eliminated neoplastic cells, and prolonged survival of the treated animals.{21782}  

 

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Description

A potent ATP mimetic that inhibits both JAK1 and JAK2 with IC50 values of 2.7 and 4.5 nM, respectively; blocks IL-6 signaling (IC50 = 281 nM) and proliferation of JAK2V617F+ Ba/F3 cells (IC50 = 127 nM); reduces splenomegaly, decreases circulating levels of IL-6 and TNF-α, eliminates neoplastic cells, and prolongs survival in a mouse model of JAK2V617F+ MPN

Formal name: βR-cyclopentyl-4-(7H-pyrrolo[2,3-d]pyrimidin-4-yl)-1H-pyrazole-1-propanenitrile

Synonyms:  INCB 018424

Molecular weight: 306.4

CAS: 941678-49-5

Purity: ≥98%

Formulation: A crystalline solid

Product Type|Biochemicals|Kinase Inhibitors|JAK Family||Product Type|Biochemicals|Small Molecule Inhibitors|Kinases||Research Area|Cell Biology|Cell Signaling|JAK Signaling

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