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 (205)
Related Products (205)
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Antibodies (3)
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NMS-P953
0 ImagesCat. No.: HY-129679CAS No.: 1403679-33-3NMS-P953 (compound 28) is an orally active JAK2 inhibitor (IC50=0.008 μM) with antitumor activity.
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AS2553627
0 ImagesCat. No.: HY-123187CAS No.: 1251906-10-1AS2553627 is a type of JAK inhibitor, with IC50 values of 0.46, 0.30, 0.14, and 2.0 nM for JAK1, JAK2, JAK3 and TYK2, respectively. AS2553627 can inhibit the proliferation of human and rat T cells stimulated by IL-2, with IC50 values of 2.4 and 4.3 nM, respectively. AS2553627 can reduce cardiac allograft vasculopathy and fibrosis in a rat heart transplant model, effectively extending survival rates. AS2553627 can be used to prevent acute and chronic rejection in heart transplants.
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TM-233
0 ImagesCat. No.: HY-119009CAS No.: 1103745-28-3TM-233 is an inhibitor of the JAK/STAT and NF-κB signaling pathways, exhibiting significant antitumor activity. TM-233 reduces the expression of the anti-apoptotic protein Mcl-1 by inhibiting the phosphorylation of JAK2 and STAT3, and regulates its transcription by directly binding to the Mcl-1 gene promoter. Additionally, TM-233 prevents the translocation of NF-κB from the cytoplasm to the nucleus by inhibiting its DNA-binding activity, thereby reducing nuclear NF-κB expression. TM-233 shows potential in overcoming Bortezomib (HY-10227) resistance and can be applied in research related to multiple myeloma.
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Nuvisertib hydrochloride
0 ImagesCat. No.: HY-101126ACAS No.: 1418143-09-5Synonyms: TP-3654 hydrochlorideNuvisertib hydrochloride (TP-3654 hydrochloride) is an orally active second-generation pan-PIM kinase inhibitor with Ki values of 5 nM, 239 nM, and 42 nM against PIM-1, PIM-2, and PIM-3, respectively. Nuvisertib hydrochloride inhibits JAK-independent inflammatory and survival signaling pathways, reduces the production of proinflammatory cytokines, restores apoptotic sensitivity, inhibits mTORC1, MYC, and TGF-β signaling pathways, and decreases the expression of fibrosis markers. Nuvisertib hydrochloride selectively impairs the transport function of ABCG2, resensitizes multidrug-resistant cancer cells to cytotoxic drugs, and overcomes JAK2 inhibitor resistance. Nuvisertib hydrochloride can be used in research related to myelofibrosis, renal cell carcinoma, multidrug-resistant cancer, advanced solid tumors, urothelial carcinoma, and prostate adenocarcinoma.
