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 (210)
Related Products (210)
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Antibodies (3)
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AT9283 lactic acid
0 ImagesCat. No.: HY-10058CAS No.: 896466-76-5
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Pacritinib hydrochloride
0 ImagesCat. No.: HY-16379ACAS No.: 1228923-43-0Synonyms: SB1518 hydrochloridePacritinib hydrochloride is a potent inhibitor of both wild-type JAK2 (IC50=23 nM) and JAK2V617F mutant (IC50=19 nM). Pacritinib hydrochloride also inhibits FLT3 (IC50=22 nM) and its mutant FLT3D835Y (IC50=6 nM). Pacritinib hydrochloride can be used for the research of acute myeloid leukemia (AML) and myelofibrosis (MF).
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Vexicitinib
0 ImagesCat. No.: HY-184063CAS No.: 2230362-69-1Synonyms: Vexicitinibum
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YSY01A
0 ImagesCat. No.: HY-162885CAS No.: 1194235-46-5YSY01A is a proteasome inhibitor that can suppress cancer cell survival by inducing apoptosis (Apoptosis). Its IC50 values are 51.0 nM for HEK293T, 9.2 nM for A549, 5.2 nM for MCF-7, 8.9 nM for MGC-803, and 35.4 nM for PC-3M cells. Additionally, YSY01A eliminates constitutive STAT3 signaling by downregulating gp130 and JAK2 in human A549 lung cancer cells. YSY01A holds promise for research in the field of cancer therapy.
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JAK2-IN-25
0 ImagesCat. No.: HY-189580CAS No.: 3047885-27-5
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PROTAC FLT3/JAK2/BRD4 Degrader-1
0 ImagesCat. No.: HY-175610CAS No.: 3067695-20-6PROTAC FLT3/JAK2/BRD4 Degrader-1 is a FLT3/JAK2/BRD4 PROTAC degrader with DC50 values of 5.23, 0.68, and 1.17 nM, respectively. PROTAC FLT3/JAK2/BRD4 Degrader-1 induces cereblon- and proteasome-dependent degradation of FLT3, JAK2, and BRD4 via the ubiquitin-proteasome system. PROTAC FLT3/JAK2/BRD4 Degrader-1 is used in studies related to FLT3 inhibitor-resistant leukemia and acute myeloid leukemia.
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JAK2 activator 1
0 ImagesCat. No.: HY-189252JAK2 activator 1 is an orally active and selective JAK2 activator derived from Proanthocyanidin A1 (HY-N2344) (EC50 = 64 nM). JAK2 activator 1 directly binds to JAK2, triggers conformational changes, and achieves allosteric activation of the JAK2/STAT3 signaling pathway. JAK2 activator 1 promotes hematopoietic recovery in chemotherapy-induced myelosuppression by protecting hematopoietic stem cells from Carboplatin (HY-17393)-induced damage. JAK2 activator 1 does not promote the proliferation of A549, HepG2, or CaCo2 tumor cells, nor does it attenuate the antitumor effect of Carboplatin. JAK2 activator 1 can be used in research related to cancer chemotherapy-induced myelosuppression.
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SB1578
0 ImagesCat. No.: HY-16449CAS No.: 937273-04-6Synonyms: CT-1578SB1578 (CT-1578) is a selective JAK2 and FLT3 inhibitor with an IC50 of 46 nM and 60 nM, respectively. SB1578 exhibits high selectivity for other kinase targets. SB1578 can be used for the study of non-oncology indication rheumatoid arthritis.
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MTP
0 ImagesCat. No.: HY-155785CAS No.: 2377372-62-6
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JAK-2/3-IN-3
0 ImagesCat. No.: HY-151285CAS No.: 2242031-31-6JAK-2-/3-IN-3 (compound ST4j) is a potent JAK2/3 inhibitor with IC50s of 13.00 and 14.86 nM for JAK2 and JAK3, respectively. JAK-2-/3-IN-3 inhibits autophosphorylation of JAK2 and induces apoptosis in a dose- and time-dependent manner. JAK-2-/3-IN-3 can be used in studies of lymph derived diseases and leukemia.
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JAK-2/3-IN-1
0 ImagesCat. No.: HY-10652CAS No.: 1036241-36-7JAK-2/3-IN-1 is a potent JAK-2 and JAK-3 inhibitor extracted from patent US8163732B2, compound 46, has Kis of <250 nM for both isoforms.
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JAK2-IN-15
0 ImagesCat. No.: HY-178936CAS No.: 3094174-82-7JAK2-IN-15 is an orally active, potent, selective JAK2 inhibitor (IC50 = 1.17 nM). JAK2-IN-15 can inhibit the AK2-STAT signaling pathway. JAK2-IN-15 significantly improves key pathological indicators such as hematocrit and splenomegaly in an Epoetin beta (HY-114134) (rhEPO)-induced mouse model. JAK2-IN-15 can be used for the study of Polycythemia Vera (PV).
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EC-70124
0 ImagesCat. No.: HY-124067CAS No.: 1185908-92-2EC-70124 is an orally active multikinase inhibitor targeting IKKβ and JAK2. EC-70124 blocks IkB phosphorylation and STAT3 (Tyr705) activation, suppressing NF-κB nuclear translocation and STAT3 transcriptional activity. EC-70124 reduces tumor growth and cancer stem cell (CSC) populations in prostate cancer cells and xenograft models. EC-70124 is promising for research of prostate cancer.
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JAK-IN-30
0 ImagesCat. No.: HY-154994CAS No.: 2891469-99-9
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BRD4-IN-41
0 ImagesCat. No.: HY-115541CAS No.: 1877286-69-5BRD4-IN-41 is a BRD4 inhibitor with an IC50 of 34 nM. BRD4-IN-41 also inhibits JAK2, FLT3, RET, ROS1, NTRK3, PDGFRb, and FGFR1 kinases with IC50 values ranging from 0.9 nM to 43 nM. BRD4-IN-41 inhibits acetyl-lysine binding site of BRD4, downregulates c-MYC, reduces phosphorylated STAT3 levels, induces G1 cell cycle arrest and apoptosis, thereby inhibiting cancer cells growth. BRD4-IN-41 can be used for the research of cancer, such as multiple myeloma and acute myeloid leukemia.
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EGFR-IN-178
0 ImagesCat. No.: HY-178448EGFR-IN-178 is an orally active EGFR mutant inhibitor, exhibits highly selective inhibitory activity against mutants of the EGFR enzyme, including Del19 (IC50 = 3.4 nM), L858R/T790 M (IC50 = 2.9 nM), and Del19/T790 M (IC50 = 2.5 nM). EGFR-IN-178 has good activity against JAK2 (IC50 = 55.6 nM) and JAK3 (IC50 = 46.1 nM) kinases. EGFR-IN-178 can increase cellular lipid oxide MDA, meanwhile decrease GSH content, causing ferroptosis in cancer cells. EGFR-IN-178 promotes apoptosis by increasing cleaved caspase-3 expression. EGFR-IN-178 can inhibit the phosphorylation of EGFR protein and decrease the active form p-JAK2 for JAK2, induce an increase in intracellular ROS. EGFR-IN-178 can be used for the study of non-small cell lung cancer (NSCLC).
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WP1193
0 ImagesCat. No.: HY-129341CAS No.: 951693-87-1WP1193 is a novel JAK2/STAT3 pathway inhibitor. WP1193 suppresses phosphorylation of JAK2 and STAT3. WP1193 decreases expression of stem cell markers including CD133 and c-myc. WP1193 can be used in the research of glioblastoma.
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Momelotinib dihydrochloride
0 ImagesMomelotinib (dihydrochloride) is a JAK1/JAK2 inhibitor that also antagonizes ACVR1, leading to downregulation of Hepcidin expression and increased availability of iron for erythropoiesis. Momelotinib (dihydrochloride) can reduce transfusion burden and spleen enlargement caused by myelofibrosis, showing potential value in research and application within the field of myelofibrosis.
