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.
| Molecular Weight | 462.57 |
| Formula | C24H26N6O2S |
| CAS Number | 1257704-57-6 |
| Solubility (25°C) | DMSO 90 mg/mL |
| Storage |
Powder -20°C 3 years ; 4°C 2 years In solvent -80°C 6 months ; -20°C 1 month |
| Species | Mouse | Rat | Rabbit | Guinea pig | Hamster | Dog |
| Weight (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
| Body Surface Area (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
| Km factor | 3 | 6 | 12 | 8 | 5 | 20 |
| Animal A (mg/kg) = Animal B (mg/kg) multiplied by | Animal B Km |
| Animal A Km |
For example, to modify the dose of Compound A used for a mouse (20 mg/kg) to a dose based on the BSA for a rat, multiply 20 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 Compound A of 10 mg/kg.
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A-005 is a potentially first-in-class, brain-penetrating TYK2 allosteric inhibitor for studies related to neuroinflammatory and neurodegenerative diseases. |
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Tyrosine Protein Kinase JAK 2 (Phospho-Tyr8, 9) is a peptide corresponding to amino acids 475 to 491 of mouse JAK2. |
| JAK2/FLT3-IN-1 TFA
JAK2/FLT3-IN-1 (TFA) is a potent and orally active dual JAK2/FLT3 inhibitor with IC50 values of 0.7 nM, 4 nM, 26 nM and 39 nM for JAK2, FLT3, JAK1 and JAK3, respectively. |
| ZT55
ZT55 is an orally active and highly-selective JAK2 inhibitor with an IC50 value of 0.031 μM. |
| ZM39923
ZM39923 is a JAK3 inhibitor, with a pIC50 of 7.1; ZM39923 also potently inhibits tissue transglutaminase (TGM2) with an IC50 of 10 nM. |
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