stat5

STAT5-IN-1 (STAT5 Inhibitor) is a cell-permeable inhibitor which suppresses Stat5 via binding to the SH2 domain.

STAT5-IN-2 is an inhibitor of STAT5 with antileukemic effects (EC50s: 9 μM and 5 μM in K562 and KU812 cells, respectively).

PF-05221304 (NSC-170984) is an orally active, liver-targeted inhibitor of acetyl-CoA carboxylase (ACC), a rate-limiting enzymes for fatty acid synthesis.

AS2863619 is an oral inhibitor of cyclin-dependent kinase 8 (CDK8) and CDK19. Inhibition of CDK8 19 can enhance the activation of STAT5, thereby activating the Foxp3 gene. It can convert antigen-specific effector memory T cells into Foxp3+ regulatory T cells to study various immune diseases.

Butyzamide is an effective and oral Mpl activator. It is a novel non-peptide-based molecule with antagonistic effects on thrombopoietin (TPO) receptors, which promotes proliferation of human Mpl (hMpl) expression and mouse pro B cell line Ba F3. The phosphorylation of JAK2, STAT3, STAT5 and MAPK is induced. Butyzamide has been shown to help increase platelet levels in mouse xenotransplantation trials.

JAK3i is a selective covalent inhibitor of JAK3 kinase. JAK3i reveals two distinct temporal waves of STAT5 phosphorylation and more potently targets the second wave, which is required for cell cycle progression and T cell proliferation.

HODHBt is a STAT5-SUMO protein-protein interaction inhibitor.

Cenisertib is A potent ATP-competitive multi-kinase inhibitor, showing inhibitory effects on the activity of Aurora-kinase-A/B, ABL1, AKT, STAT5, FLT3, as well as kinase inhibitors of FER and its homolog. Cenisertib inhibits the growth of tumor mast cells (MCS) by inhibiting the activity of several different molecular targets. Cenisertib also inhibits tumor growth in pancreatic, breast, colon, ovarian and lung cancer and leukemia in xenograft models.

Fedratinib (TG-101348) (TG101348) is an ATP-competitive inhibitor of JAK2 (IC50: 3 nM) with significantly less potent activity against JAK3.

BD750 is an effective immunosuppressant and a JAK3 STAT5 inhibitor, inhibits IL-2-induced JAK3 STAT5-dependent T cell proliferation(IC50 of 1.5 μM and 1.1 μM in mouse and human T cells, respectively)

HM43239 is an orally active and selective FLT3 inhibitor with IC 50 s of 1.1 nM, 1.8 nM and 1.0 nM for FLT3 WT, FLT3 internal tandem duplication (ITD) and FLT3 D835Y kinases, respectively. HM43239 directly inhibits the kinase activity of FLT3 as a reversible Type I inhibitor and effectively modulates downstream p-STAT5 and p-ERK. HM43239 also demonstrated inhibition of SYK, JAK1 2 and TAK1. HM43239 inhibits the proliferation and induces the apoptosis of leukemic cells [1] [2] [3].

Pimozide (R6238) is a diphenylbutylpiperidine derivative and a dopamine antagonist with the antipsychotic property. Pimozide selectively inhibits type 2 dopaminergic receptors in the central nervous system (CNS), thereby decreasing dopamine neurotransmission and reducing the occurrence of the motor and vocal tics and delusions of parasitosis. In addition, this agent antagonizes alpha-adrenergic and 5-HT2 receptors.

WP1066 is a inhibitor of JAK2 (IC50: 2.30 μM) and STAT3 (IC50: 2.43 μM) in HEL cells; shows activity to JAK2, STAT3/5, and ERK1/2, not JAK1 and JAK3. WP1066 has been used in trials studying the treatment of Melanoma, Brain Cancer, Solid Tumors, and Central Nervous System Neoplasms.

Cryptotanshinone (Cryptotanshinon), a STAT3 inhibitor (IC50: 4.6 μM) in a cell-free assay, strongly inhibits phosphorylation of STAT3 Tyr705, with a little effect on STAT3 Ser727, but no inhibition for STAT1 nor STAT5.

CMD178 (TFA) is a lead peptide that consistently reduces the expression of Foxp3 and STAT5 induced by IL-2/s IL-2Rα signaling.

XL019 is a potent and selective JAK2 inhibitor with IC50 of 2.2 nM, 100 fold selectivity over JAK1.

NS-3-008 hydrochloride (NS-3-008 HCl) is a transcriptional G0 G1 switch 2 (G0s2) inhibitor( IC50 of 2.25 μM).

Tyrphostin AG30 (AG30) (AG30) is a potent protein tyrosine kinases (PTK) inhibitor.

CAY10763 is a dual inhibitor of indolamine 2,3-dioxygenase 1 (IDO1; IC50= 46 nM) and STAT3 activation.1It binds to STAT3 (Kd= 530 nM) and selectively reduces the levels of STAT3 phosphorylated at the tyrosine in position 705 (STAT3Y705) over phosphorylated STAT3S727, STAT1, and STAT5 in SKOV3 cells when used at a concentration of 500 nM. It also inhibits STAT3 nuclear translocation in SKOV3 cells. CAY10763 is cytotoxic to HCT116, SKOV3, A549, and HepG2 cancer cells (IC50s = 37, 28, 33, and 12 nM, respectively). It reduces tumor growth in B16/F10 mouse melanoma and HepG2 mouse xenograft models when administered at doses of 100 and 10 mg/kg, respectively. 1.Huang, R., Jing, X., Huang, X., et al.Bifunctional naphthoquinone aromatic amide-oxime derivatives exert combined immunotherapeutic and antitumor effects through simultaneous targeting of indoleamine-2,3-dioxygenase and signal transducer and activator of transcription 3J. Med. Chem.63(4)1544-1563(2020)

PF15 TFA, a PROTAC targeting FLT3 kinase and CRBN, exhibits selective degradation of FLT3-ITD with a DC50 of 76.7 nM. The compound potently suppresses proliferation in FLT3-ITD-positive cells, reduces phosphorylation levels of FLT3 and STAT5, and demonstrates inhibition of tumor growth in murine leukemia models [1].

CDK8-IN-13 is a CDK8 inhibitor (IC50: 51.9 nM) with potent, selective and oral activity. CDK8-IN-13 induces apoptosis and reduces the expression of p-STAT1 S727 and p-STAT5 S726. CDK8-IN-13 exhibits anti-tumour activity.

BP-1-108 is a potent and selective STAT5 inhibitor.

MS-1020 is a JAK3 and STAT3 inhibitor. MS-1020 selectively blocks constitutively-active JAK3 and consistently suppressed interleukin-2-induced JAK3/STAT5 signalling. MS-1020 potently inhibits persistently-active STAT3 in a cell type-specific manner.

Compound A8, known as JAK2-IN-9, is a selective JAK2 inhibitor with an IC50 of 5 nM. It effectively inhibits the phosphorylation of JAK2, STAT3, and STAT5, possesses metabolic stabilities, and induces apoptosis. This compound is utilized in the study of myeloproliferative neoplasms (MPNs) [1].

Debio 0617B is a multi-kinase inhibitor that reduces maintenance and self-renewal of primary human AML CD34+ stem/progenitor cells. debio 0617B targets key kinases upstream of STAT3/STAT5 signalling, such as JAK, ABL, SRC and class III/V receptor tyrosine kinases. debio 0617B can be used to study STAT3 driven solid tumours.

SH-4-54 is a most potent, small molecule, nonphosphorylated STAT3 inhibitor.

BVB808 (NVP_BVB808) is a selective inhibitor of JAK2, exhibiting approximately 10 times greater selectivity for JAK2 compared to other members of the JAK family (such as JAK1, JAK3, or TYK2) in vitro. By inhibiting the activation of JAK2, BVB808 reduces the phosphorylation of STAT5, thereby blocking the cell proliferation and survival signaling pathways that depend on JAK2. This compound is utilized in cancer research.

IQDMA is an inhibitor of the transcription factor STAT5.

AC-4-130, a powerful inhibitor of the SH2 domain of STAT5, effectively hinders STAT5 activation, dimerization, nuclear translocation, and transcription of genes reliant on STAT5. This compound directly binds to STAT5, ultimately leading to cell cycle arrest and apoptosis in FLT3-ITD-driven leukemic cells. AC-4-130 exhibits notable anti-cancer properties and effectively suppresses abnormal STAT5 activity in acute myeloid leukemia (AML), making it a promising therapeutic option [1].

JAK2 inhibitor (IC50 = 397 nM). Also inhibits STAT3 and STAT5 phosphorylation. Inhibits cell growth and induces apoptosis in cells expressing the JAK2V617F mutation. Manshouri et al (2011) Bone marrow stroma-secreted cytokines protect JAK2(V617F)-mutated cells from the effects of a JAK2 inhibitor. Cancer Res. 71 3831 PMID:21512135 |Quintás-Cardama et al (2011) Preclinical characterization of atiprimod, a novel JAK2 AND JAK3 inhibitor. Invest.New Drugs 29 818 PMID:20372971

FLT3-IN-18, a potent and selective FLT3 inhibitor, exhibits an IC50 value of 0.003 μM. It effectively induces apoptosis and G1 phase cell cycle arrest, while inhibiting FLT3 and STAT5 phosphorylation. This compound holds potential for acute myeloid leukemia (AML) research.

Abrocitinib (PF-04965842) (PF-04965842) is a potent, specific and orally-active JAK1 inhibitor (IC50s: 29/803 nM for JAK1/2).

APcK110 is a novel Kit inhibitor . APcK110 inhibits proliferation of the mastocytosis cell line HMC1.2 and the SCF-responsive cell line OCI/AML3 in a dose-dependent manner . APcK110 is a more potent inhibitor of OCI/AML3 proliferation than the clinically used Kit inhibitors imatinib and dasatinib and at least as potent as cytarabine. APcK110 inhibits the phosphorylation of Kit, Stat3, Stat5, and Akt in a dose-dependent fashion, showing activity of APcK110 on Kit and its downstream signaling pathways . APcK110 may have potent application in AML.

Fedratinib hydrochloride hydrate (SAR 302503 hydrochloride hydrate) is a potent, selective, ATP-competitive and orally active JAK2 inhibitor.

AK-2292 is a potent and selective STAT5 PROTAC degrader with a DC50 of 0.10 μM. It induces degradation of STAT5A B proteins in vitro and in vivo and can cause tumor regression in acute myeloid leukemia and chronic myeloid leukemia xenograft mouse models [1] [2].

PF15, a selective FLT3-ITD degrader, serves as a PROTAC (proteolysis targeting chimera) tethering ligands for FLT3 kinase and CRBN. It exhibits a degradation concentration 50 (DC50) of 76.7 nM and notably impedes the proliferation of FLT3-ITD-positive cells. PF15 also reduces phosphorylation levels of FLT3 and STAT5 and demonstrates efficacy in inhibiting tumor growth in mouse models, suggesting potential applications in leukemia research [1].

CMD178 is an important polypeptide that consistently reduces the expression of Foxp3 and STAT5 by inhibiting the IL-2/s IL-2Rα signaling pathway.

PM-43I is a potent inhibitor of both STAT5- and STAT6-dependent allergic airway disease in mice.

S1H, a synthetic peptide mimetic of human growth hormone amino acids 36-51, acts as an antagonist to the growth hormone receptor. It forms an α-helical structure in solution and inhibits STAT5 phosphorylation triggered by human growth hormone in SK-MEL-28 and MALME-3M melanoma cell lines, as well as prolactin in IM-9 B cell lymphocytes, at concentrations of 100 and 200 nM.

AS2863619 free base enables the conversion of antigen-specific effector memory T cells into Foxp3+ regulatory T (Treg) cells. It is a potent, orally active CDK8 and CDK19 inhibitor (IC50s: 0.61 nM and 4.28 nM). STAT5 activation enhanced by AS2863619 free base inhibition of CDK8 19, which consequently activates the Foxp3 gene.

Pimozide D4 is a deuterium labeled Pimozide.

JAK-IN-24, a JAK inhibitor, exhibits IC50 values of 0.534 nM and 24 nM in the presence of 4 μM and 1 mM ATP, respectively. Additionally, it effectively inhibits STAT5 phosphorylation induced by PBMC IL-15 with an IC50 of 86.171 nM.

BPR1J-340 is a potent and selective FLT3 inhibitor with potential anticancer activity. BPR1J-340 was identified as a novel potent FLT3 inhibitor by biochemical kinase activity (IC50 approximately 25 nM) and cellular proliferation (GC50 approximately 5 nM) assays. BPR1J-340 inhibited the phosphorylation of FLT3 and STAT5 and triggered apoptosis in FLT3-ITD(+) AML cells. The pharmacokinetic parameters of BPR1J-340 in rats were determined. BPR1J-340 also demonstrated pronounced tumor growth inhibition and regression in FLT3-ITD(+) AML murine xenograft models. The combination treatment of the HDAC inhibitor vorinostat (SAHA) with BPR1J-340 synergistically induced apoptosis via Mcl-1 down-regulation in MOLM-13 AML cells, indicating that the combination of selective FLT3 kinase inhibitors and HDAC inhibitors could exhibit clinical benefit in AML therapy.

Tuspetinib (HM43239) hydrate is a selectively active FLT3 inhibitor for oral administration, demonstrating IC₅₀ values of 1.1 nM for FLT3 WT, 1.8 nM for FLT3 internal tandem duplication (ITD), and 1.0 nM for FLT3 D835Y kinases. As a reversible type I inhibitor, it suppresses FLT3 kinase activity and influences signaling pathways including p-STAT5, p-ERK, SYK, JAK1 2, and TAK1. Additionally, Tuspetinib hydrate inhibits leukemic cell proliferation and triggers apoptosis [1] [2] [3].