Z3 (NSC 42834) selectively inhibited Jak2 kinase function with no effect on Tyk2 or c-Src kinase function. Z3 significantly inhibited proliferation of the Jak2-V617F-expressing, human erythroleukemia cell line, HEL 92.1.7. The Z3-mediated reduction in cell proliferation correlated with reduced Jak2 and STAT3 tyrosine phosphorylation levels as well as marked cell cycle arrest. Finally, Z3 (NSC 42834) inhibited the growth of hematopoietic progenitor cells isolated from the bone marrow of an essential thrombocythemia patient harboring the Jak2-V617F mutation and a polycythemia vera patient carrying a Jak2-F537I mutation.
|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 40 mg/mL|
Prospect of JAK2 inhibitor therapy in myeloproliferative neoplasms.
Atallah E, et al. Expert Rev Anticancer Ther. 2009 May;9(5):663-70. PMID: 19445582.
Jak2 inhibitors: rationale and role as therapeutic agents in hematologic malignancies.
Sayyah J, et al. Curr Oncol Rep. 2009 Mar;11(2):117-24. PMID: 19216843.
Z3, a novel Jak2 tyrosine kinase small-molecule inhibitor that suppresses Jak2-mediated pathologic cell growth.
Sayyah J, et al. Mol Cancer Ther. 2008 Aug;7(8):2308-18. PMID: 18723478.
|Related JAK Products|
Peficitinib (ASP015K, JNJ-54781532) is an orally bioavailable JAK inhibitor, with IC50s of 3.9, 5.0, 0.7 and 4.8 nM for JAK1, JAK2, JAK3 and Tyk2, respectively.
FLLL32 is a potent JAK2/STAT3 inhibitor with IC50 of <5 μM.
WHI-P97 is a JAK3 inhibitor with an estimated Ki value of 0.09 microM from modeling studies and a measured IC50 value of 2.5 microM in EGFR kinase inhibition assays.
SAR-20347 is a potent dual inhibitor of JAK1 and TYK2 with IC50 values of 23 and 0.6 nM, respectively.
Itacitinib, also known as INCB39110 or INCB039110, is a potent JAK1 tyrosine kinase inhibitor.
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