CEP-33779 is a highly selective, orally active, small-molecule inhibitor of JAK2. CEP-33779 (< 3 μM) inhibits phosphorylation of downstream target signal transducer and activator of transcription 5 (pSTAT5) of JAK2 in a concentration dependent manner in HEL92 cells. CEP-33779 induced regression of established colorectal tumors, reduced angiogenesis, and reduced proliferation of tumor cells. CEP-33779 results in reduced bone degradation, reduced tissue destruction, and reduced osteoarthritis in dose-dependent manner in CAIA or CIA mice. CEP-33779 suppressed growth of colorectal tumors by inhibiting the IL-6/JAK2/STAT3 signaling. Treatment with CEP-33779 extended survival and reduced splenomegaly/lymphomegaly. Several serum cytokines were significantly decreased upon treatment including IL-12, IL-17A, IFN-α, IL-1β, and TNF-α.
|Body Surface Area (m2)||0.007||0.025||0.15||0.05||0.02||0.5|
|Animal A (mg/kg) = Animal B (mg/kg) multiplied by||Animal B Km|
|Animal A Km|
For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.
|Solubility||DMSO 90 mg/mL|
Therapeutic efficacy of CEP-33779, a novel selective JAK2 inhibitor, in a mouse model of colitis-induced colorectal cancer.
Seavey MM, et al. Mol Cancer Ther. 2012 Apr;11(4):984-93. PMID: 22334590.
Depletion of autoreactive plasma cells and treatment of lupus nephritis in mice using CEP-33779, a novel, orally active, selective inhibitor of JAK2.
Lu LD, et al. J Immunol. 2011 Oct 1;187(7):3840-53. PMID: 21880982.
A highly selective, orally active inhibitor of Janus kinase 2, CEP-33779, ablates disease in two mouse models of rheumatoid arthritis.
Stump KL, et al. Arthritis Res Ther. 2011 Apr 21;13(2):R68. PMID: 21510883.
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|JAK3-IN-6 (Compound 2)
JAK3-IN-6 (Compound 2) CAS#: 1443235-95-7 is a potent and highly selective JAK3 inhibitor, with an IC50 of 0.15 nM.
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