JAK2
JAK2 is a non-receptor tyrosine kinase in the JAK1-JAK2-JAK3-TYK2 family and acts as a cytoplasmic signaling component of cytokine receptors[1]. Mechanistically, cytokine-mediated activation of JAK2 promotes receptor phosphorylation, recruits STAT proteins, and drives STAT phosphorylation-dependent transcriptional signaling[1][2]. This pathway supports cell growth, survival, development, differentiation, hematopoiesis, immune regulation, and homeostasis[2][3]. In disease models, gain-of-function JAK2 V617F in the pseudokinase domain causes constitutive activity and is strongly linked to myeloproliferative neoplasms and leukemias[1][4]. Compared with related isoforms, JAK3 is essential for common γ-chain cytokine receptor signaling in T- and B-cell development, whereas complete mouse deletion of JAK1 or JAK2 is not compatible with life[5][6]. For experimental applications, ruxolitinib is a selective oral JAK1/JAK2 inhibitor, and JAK2-focused compounds support studies of mutant signaling, cytokine responses, splenomegaly, angiogenesis, and inhibitor resistance[7][8][9].
References:
- [1]. Hubbard SR. Mechanistic Insights into Regulation of JAK2 Tyrosine Kinase. Front Endocrinol (Lausanne). 2018 Jan 5;8:361. doi: 10.3389/fendo.2017.00361. PMID: 29379470; PMCID: PMC5770812. et al. Mechanistic Insights into Regulation of JAK2 Tyrosine Kinase. Front Endocrinol (Lausanne). 2018 Jan 5;8:361. [Content Brief]
- [2]. Ihle JN, et al. Jaks and Stats in signaling by the cytokine receptor superfamily. Trends Genet. 1995 Feb;11(2):69-74. [Content Brief]
- [3]. Rawlings JS, et al. The JAK/STAT signaling pathway. J Cell Sci. 2004 Mar 15;117(Pt 8):1281-3. [Content Brief]
- [4]. Gäbler K, et al. JAK2 mutants (e.g., JAK2V617F) and their importance as drug targets in myeloproliferative neoplasms. JAKSTAT. 2013 Jul 1;2(3):e25025. [Content Brief]
- [5]. Suzuki K, et al. Janus kinase 3 (Jak3) is essential for common cytokine receptor gamma chain (gamma(c))-dependent signaling: comparative analysis of gamma(c), Jak3, and gamma(c) and Jak3 double-deficient mice. Int Immunol. 2000 Feb;12(2):123-32. [Content Brief]
- [6]. Ghoreschi K, et al. Janus kinases in immune cell signaling. Immunol Rev. 2009 Mar;228(1):273-87. [Content Brief]
- [7]. Naqvi K, et al. A potential role of ruxolitinib in leukemia. Expert Opin Investig Drugs. 2011 Aug;20(8):1159-66. [Content Brief]
- [8]. Hart S, et al. SB1518, a novel macrocyclic pyrimidine-based JAK2 inhibitor for the treatment of myeloid and lymphoid malignancies. Leukemia. 2011 Nov;25(11):1751-9. [Content Brief]
- [9]. Cheng Z, et al. Angiogenesis in JAK2 V617F positive myeloproliferative neoplasms and ruxolitinib decrease VEGF, HIF-1 enesis in JAK2 V617F positive cells. Leuk Lymphoma. 2018 Jan;59(1):196-203. [Content Brief]
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JAK2 Related Products (209)
Related Products (209)
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Antibodies (3)
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ON044580
0 ImagesON044580 is a non–ATP-competitive JAK2 and BCR-ABL kinases inhibitor. ON044580 inhibits wild-type (WT) and V617F mutant JAK2 with IC50 values of 1.23 μM, 1.09 μM, respectively. ON044580 also inhibits both WT and T315I mutant BCR-ABL kinases., ON044580 blocks the IL-3–mediated phosphorylation of JAK2 and STAT5, induces apoptosis in Imatinib (HY-15463)-resistant chronic myeloid leukemia (CML). ON044580 can be used for the study of CML, myelodysplasia (MDS) and other myeloproliferative neoplasms.
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JAK2-IN-10
0 ImagesCat. No.: HY-161684CAS No.: 3035735-18-0JAK2-IN-10 is a selective JAK2 V617F inhibitor with an IC50 value of ≤10 nM. JAK2-IN-10 can be used for the research of myeloproliferative neoplasms and other related diseases.
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Blovacitinib
0 ImagesSynonyms: TUL01101
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Cyclanoline chloride
0 ImagesCat. No.: HY-120692CAS No.: 17472-50-3Cyclanoline chloride is an alkaloid. Cyclanoline chloride can be isolated from Fangji. Cyclanoline (chloride) inhibits the phosphorylation of JAK2 and STAT3, and induces Apoptosis. Cyclanoline chloride suppresses tumor growth in subcutaneous bladder cancer xenograft models of nude mice. Cyclanoline chloride reverses cisplatin resistance in bladder cancer cells and enhances the efficacy of Cisplatin (HY-17394). Cyclanoline chloride can be used for research related to bladder cancer.
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Frevecitinib
0 ImagesSynonyms: KN-002; VR-588
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Mocravimod
0 ImagesSynonyms: KRP-203 free baseMocravimod (KRP-203 free base) is a sphingosine-1-phosphate receptor (S1PR) modulator that blocks the signal required by T cells to egress from lymph nodes and other lymphoid organs. Mocravimod preferentially binds to S1PR1 over S1PR2 and S1PR3 in cardiomyocytes. Mocravimod significantly lowered the concentration of reactive oxygen species (ROS), prevented mitochondrial permeability transition pore opening, boosted mitochondrial membrane potential (MMP), and increased phosphorylation of AKT, EKR, GSK-3β, JAK2, and STAT3. Mocravimod retains T cell effector function. Mocravimod can be used for the study of acute myelogenous leukemia, diabetes and Myocardial Ischemia-Reperfusion Injury (MIRI).
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DCZ3301
0 ImagesDCZ3301 is an apoptosis inducer. DCZ3301 modulates JAK2/STAT3, ERK1/2, and PI3K/AKT pathways. DCZ3301 induces G2/M and M phase cell cycle arrest and inhibits cell proliferation and viability. DCZ3301 enhances DNA damage, inhibits DNA repair, and suppresses angiogenesis. DCZ3301 can be used for the research of diffuse large B-cell lymphoma, multiple myeloma and leukemia/lymphoma.
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MJ04
0 ImagesMJ04 is a selective inhibitor for Janus Kinase 3 (JAK 3) with an IC50 of 2.03 nM. MJ04 inhibits T cell differentation and inhibits the proinfammatory cytokines in Lipopolysaccharides (HY-D1056)‑induced macrophages. MJ04 exhibits good pharmacokinetic characters in mice, promotes hair growth in DHT-induced androgenetic alopecia (AGA) in athymic mice model, without significant toxicity (LD50 >2 g/kg).
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Dual Cathepsin L/JAK-IN-1
0 ImagesDual Cathepsin L/JAK-IN-1 (Compound A8) is a dual inhibitor of Cathepsin L (CTSL) and JAK, with IC50 values of 0.68 μM, 337.1 nM, 5.251 nM, 27.29 nM, and 172.6 nM for CTSL, JAK1/2/3, and TYK2, respectively. Dual Cathepsin L/JAK-IN-1 effectively blocks the activation of the MAPK, NF-κB, and JAK/STAT signaling pathways, leading to significant anti-inflammatory therapeutic effects. Dual Cathepsin L/JAK-IN-1 can be used in research on acute lung injury (ALI).
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Ruxolitinib sulfate
0 ImagesCat. No.: HY-50859CAS No.: 1092939-16-6Synonyms: INCB018424 sulfateRuxolitinib sulfate (INCB018424 sulfate) is the first potent, selective JAK1/2 inhibitor to enter the clinic with IC50s of 3.3 nM/2.8 nM, and has > 130-fold selectivity for JAK1/2 versus JAK3.
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Upadacitinib tartrate tetrahydrate
0 ImagesCat. No.: HY-19569ACAS No.: 1607431-21-9Synonyms: ABT-494 tartrate tetrahydrateUpadacitinib (ABT-494) tartrate tetrahydrate is a potent, orally active and selective Janus kinase 1 (JAK1) inhibitor (IC50=43 nM). Upadacitinib tartrate tetrahydrate displays approximately 74 fold selective for JAK1 over JAK2 (200 nM) in cellular assays dependent on specific, relevant cytokines. Upadacitinib tartrate tetrahydrate can be used for several autoimmune disorders research.
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RAI-20
0 ImagesSynonyms: H018RAI-20 (H018) is an orally active JAK1/JAK2 dual inhibitor (IC50=15.1 and 22.7 nM). RAI-20 exhibits excellent pharmacokinetic properties, including plasma stability, systemic exposure, and a long half-life. In a collagen-induced arthritis rat model, RAI-20 shows significant anti-inflammatory and anti-arthritic activities, effectively reducing paw swelling volume and arthritis index. RAI-20 can be used for research on the pathogenesis of rheumatoid arthritis.
