STAT3
STAT3 is a widely expressed STAT family transcription factor that regulates cellular growth, differentiation, survival, immunity, hematopoiesis, and cell migration[1]. Mechanistically, cytokines and growth factors activate JAKs, phosphorylate STAT proteins, promote STAT dimerization, and drive nuclear transcriptional regulation[2]. In inflammatory disease models, STAT3 shows strong tyrosine phosphorylation in human ulcerative colitis, Crohn’s disease, and DSS-induced mouse colitis, where IL-6 deficiency reduces colitis and STAT3 activation[3]. In cancer models, persistent STAT3 activation supports proliferation, survival, invasion, metastasis, immune evasion, and drug resistance, making STAT3 signaling a practical axis for tumor biology research[1][4]. Compared with related isoforms, STAT1 knockout mice mainly show impaired interferon signaling, while STAT3 is emphasized in IL-6-linked inflammation, tumor progression, and Th17-related immune dysfunction[2][5]. For experimental applications, JAK/STAT inhibitors such as AG490 and AZD1480 reduce STAT1/STAT3 activation in renal ischemia-reperfusion and α-synuclein neuroinflammation models[6][7].
References:
- [1]. Liu Y, et al. STAT3 and its targeting inhibitors in osteosarcoma. Cell Prolif. 2021 Feb;54(2):e12974. [Content Brief]
- [2]. Heim MH. The Jak-STAT pathway: cytokine signalling from the receptor to the nucleus. J Recept Signal Transduct Res. 1999 Jan-Jul;19(1-4):75-120. doi: 10.3109/10799899909036638. PMID: 10071751. et al. The Jak-STAT pathway: cytokine signalling from the receptor to the nucleus. J Recept Signal Transduct Res. 1999 Jan-Jul;19(1-4):75-120. [Content Brief]
- [3]. Suzuki A, et al. CIS3/SOCS3/SSI3 plays a negative regulatory role in STAT3 activation and intestinal inflammation. J Exp Med. 2001 Feb 19;193(4):471-81. [Content Brief]
- [4]. Wu CJ, et al. Activation of STAT3 and STAT5 Signaling in Epithelial Ovarian Cancer Progression: Mechanism and Therapeutic Opportunity. Cancers (Basel). 2019 Dec 19;12(1):24. [Content Brief]
- [5]. Tolomeo M, et al. The STAT Signaling Pathway in HIV-1 Infection: Roles and Dysregulation. Int J Mol Sci. 2025 Sep 18;26(18):9123. [Content Brief]
- [6]. Si Y, et al. Dexmedetomidine protects against renal ischemia and reperfusion injury by inhibiting the JAK/STAT signaling activation. J Transl Med. 2013 Jun 9;11:141. [Content Brief]
- [7]. Qin H, et al. Inhibition of the JAK/STAT Pathway Protects Against α-Synuclein-Induced Neuroinflammation and Dopaminergic Neurodegeneration. J Neurosci. 2016 May 4;36(18):5144-59. [Content Brief]
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STAT3 Inhibitors
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STAT3 Agonist
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STAT3 Antagonists
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STAT3 Activators
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STAT3 Modulators
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STAT3 Inducer
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STAT3 Degraders
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STAT3 Ligands
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STAT3 Related Products (366)
Related Products (366)
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Antibodies (5)
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SC99
0 ImagesSC99 is an orally active, selective STAT3 inhibitor targeting JAK2-STAT3 pathway. SC99 docks into the ATP-binding pocket of JAK2. SC99 inhibits phosphorylation of JAK2 and STAT3 with no effects on the other kinases associated with STAT3 signaling. SC99 inhibits platelet activation, aggregation and displays potent anti-myeloma, anti-thrombotic activities.
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Cucurbitacin IIa
0 ImagesSynonyms: Hemslecin ACucurbitacin IIa (Hemslecin A) is an orally active, blood-brain barrier-permeable EGFR inhibitor with an IC50 of 1.455 nM against human EGFR. Cucurbitacin IIa induces caspase-3-dependent apoptosis, downregulates survivin expression, enhances autophagy levels, disrupts the actin cytoskeleton via actin aggregation, arrests the cell cycle at the G2/M phase, and exerts anti-inflammatory activity by inhibiting the EGFR-MAPK signaling pathway. Cucurbitacin IIa can be used in the research of inflammation-related diseases, depression, and cancers such as non-small cell lung cancer.
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PROTAC EGFR degrader 14
0 ImagesCat. No.: HY-175252Purity: 99.26%PROTAC EGFR degrader 14 is a EGFR PROTAC degrader, with a DC50 of 2.9 nM against EGFRL858R/T790M/C797S. PROTAC EGFR degrader 14 forms a stable ternary complex by bridging the ATP-binding pocket of the target protein EGFR with VHL E3 ubiquitin ligase, induces efficient and specific degradation of EGFR mutants via the ubiquitin-proteasome system, and ultimately induces cell cycle arrest and apoptosis. PROTAC EGFR degrader 14 can be used in studies related to non-small cell lung cancer carrying the EGFRC797S drug-resistant mutation.
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STAT3-IN-48
0 ImagesSTAT3-IN-48 is a Sorafenib analogue and potently inhibits the phosphorylation of STAT3. STAT3-IN-48 induces cell apoptosis through SHP-1 dependent STAT3 inactivation. STAT3-IN-48 does not inhibit kinase activity and has anticancer effects.
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Polygalaxanthone III
0 ImagesPolygalaxanthone III is a representative xanthone component of Polygala tenuifolia. Polygalaxanthone III inhibits chlorzoxazone 6-hydroxylation catalyzed by CYP2E1, with an IC50 of 50.56 μM. Polygalaxanthone III repairs skin damage induced by M. furfur via activating STAT3 phosphorylation and exerts anti-inflammatory effects. Polygalaxanthone III can be used for research on M. furfur-related skin damage.
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Physalin B
0 ImagesCat. No.: HY-N7695CAS No.: 23133-56-4Physalin B is an orally active anti-inflammatory and anticancer agent. Physalin B can be isolated from Physalis alkekengi L. var. Franchetii. Physalin B inhibits the activation of the NF-κB, NLRP3 inflammasome, STAT3, PI3K/Akt and Hedgehog signaling pathways, regulates the phosphorylation levels of GSK-3β, p38 MAPK, ERK1/2 and JNK, and promotes the nuclear translocation of NRF2. Physalin B reduces the levels of pro-inflammatory cytokines and factors, induces mitochondrial reactive oxygen species (mito-ROS) production, Apoptosis, G2/M cell cycle arrest and incomplete Autophagy, alters cytoskeleton structure and alleviates oxidative stress. Physalin B reduces cancer cell viability, ameliorates liver and lung tissue damage and alleviates liver fibrosis. Physalin B can be used in research related to ulcerative colitis, breast cancer, acute lung injury, colon cancer, non-alcoholic steatohepatitis, liver fibrosis, lung cancer, pancreatic cancer, lymphoma, ovarian cancer, sarcoma and leukemia.
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Patiromer
0 ImagesCat. No.: HY-112961CAS No.: 1208912-84-8Patiromer is an orally active, selective and non-absorbable intestinal potassium (K+) polymer binder that reversibly binds potassium ions in exchange for calcium (Ca2+). Patiromer can rapidly and continuously reduce serum potassium levels, maintain a normal blood potassium state, and reduce serum aldosterone levels. Patiromer also increases fecal potassium excretion. Patiromer is mainly used in the study of hyperkalemia associated with diseases such as chronic kidney disease, diabetes, and heart failure, and is particularly suitable for improving renin-angiotensin-aldosterone system inhibitor (RAASi) therapy.
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BP79
0 ImagesCat. No.: HY-206870CAS No.: 3104965-33-2BP79 is a potent TSLP receptor inhibitor. BP79 disrupts TSLP-mediated ternary complex formation, blocks TSLPR-IL7Rα co-localization, binds and stabilizes TSLPR, and inhibits phosphorylated STAT3/6. BP79 suppresses immune cell infiltration, secretion of IL-13, IL-4. BP79 can be used for the research of inflammation diseases, such as atopic dermatitis, allergic asthma, and allergic rhinitis.
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Zoniporide
0 ImagesSynonyms: CP-597396Zoniporide (CP-597396) is a selective Na+/H+ exchanger subtype 1 (NHE1) inhibitor with cardioprotective activity, with IC50 values of 67 nM and 73 nM against rat NHE1. Zoniporide reduces intracellular Na+ and Ca2+ overload, preserves mitochondrial integrity, activates pro-survival ERK1/2 and STAT3 signaling pathways, reduces necrosis and apoptosis, and decreases neutrophil aggregation. Zoniporide is applicable to research related to myocardial ischemia-reperfusion injury and heart graft ischemia-reperfusion injury.
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ER-464195-01
0 ImagesER-464195-01 is an orally active calreticulin (CRT) and integrin α subunits (ITGAs) binding inhibitor. ER-464195-01 inhibits leukocyte infiltration and subsequent inflammatory cascade reactions by dissociating the binding between CRT and ITGA. ER-464195-01 down-regulates the expression of pro-inflammatory genes (such as TNF-α, IL-1β, IL-6, IL-17f) induced by DSS (HY-116282C), and inhibit the phosphorylation of STAT3 and the production of serum amyloid A (SAA). ER-464195-01 can be used for the study of inflammatory bowel disease (IBD).
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PROTAC JAK1/2 degrader-1
0 ImagesCat. No.: HY-179715Purity: 99.47%PROTAC JAK1/2 degrader-1 is an orally active JAK1/JAK2 PROTAC degrader, with DC50 values of 1.4 μM and 0.92 μM against JAK1 and JAK2, respectively. PROTAC JAK1/2 degrader-1 triggers degradation via a CRBN- and proteasome-dependent pathway. PROTAC JAK1/2 degrader-1 inhibits the secretion of tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6). PROTAC JAK1/2 degrader-1 alleviates inflammatory responses and colon injury by inhibiting the JAK/STAT3 signaling pathway. PROTAC JAK1/2 degrader-1 can be used for the research of inflammatory bowel disease.
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Tofacitinib (Standard)
0 ImagesSynonyms: Tasocitinib (Standard); CP-690550 (Standard)Tofacitinib (Standard) (Tasocitinib (Standard); CP-690550 (Standard)) is the analytical standard of Tofacitinib (HY-40354). This product is intended for research and analytical applications. Tofacitinib (Tasocitinib) is an orally active, blood-brain barrier permeable selective inhibitor of JAK1/JAK3. Tofacitinib blocks the JAK-STAT/NF-κB signaling pathway, inhibits cytokine signal transduction, phosphorylation of STAT1/STAT5, and suppresses innate and adaptive immune responses. Tofacitinib can be used in research related to major depressive disorder, rheumatoid arthritis, pulmonary diseases, systemic lupus erythematosus, and immune-mediated liver injury.
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PROTAC STAT3 degrader-3
0 ImagesPROTAC STAT3 degrader-3 is a STAT3 PROTAC degrader. PROTAC STAT3 degrader-3 recruits the E3 ubiquitin ligase CRBN and induces the degradation of STAT3 protein. PROTAC STAT3 degrader-3 inhibits the proliferation of malignant tumor cells. PROTAC STAT3 degrader-3 can be used for the research of non-small cell lung cancer and liver cancer.
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Phlorizin dihydrate
0 ImagesPhlorizin (Floridzin) dihydrate is an orally active non-selective sodium-glucose cotransporter (SGLT) inhibitor, with an IC50 of 0.04 μM and a Ki of 39 nM against hSGLT2, and an IC50 of 0.17 μM and a Ki of 0.31 μM against hSGLT1. Phlorizin dihydrate promotes GLUT4 translocation, inhibits gluconeogenesis and promotes glycogen synthesis by activating the PI3K/Akt/mTOR pathway. Phlorizin dihydrate reduces DNA damage and apoptosis (apoptosis) by inhibiting the NF-κB inflammatory pathway. Phlorizin dihydrate induces apoptosis via activating the Caspase pathway by antagonizing the JAK/STAT3 and PCK pathways. Phlorizin dihydrate also exhibits antibacterial, anti-inflammatory and neuroprotective activities.
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Azaleatin
0 ImagesAzaleatin is an orally active inhibitor of hQC, NS2B-NS3 protease and E. coli β-glucuronidase, with IC50 values of 1.1 μM, 38.00 μg/mL and 0.57 μM, respectively. Azaleatin inhibits the activities of NF-κB, MyD88, JAK1, TLR4, STAT3, IL-1β, IL-6, COX-2, TNF-α and β-glucuronidase, blocks pro-inflammatory signaling pathways, reduces the levels of ROS, MDA and uric acid, elevates the levels of GPx, GSR, GST, SOD, CAT, HO-1 and GSH, scavenges free radicals and exerts reducing capacity. Azaleatin inhibits the expression of pro-apoptotic proteins Bax, Caspase-9 and Caspase-3, and upregulates the expression of anti-apoptotic protein Bcl-2. Azaleatin reduces the levels of cardiac injury markers, restores cardiac histological structure, inhibits Aβ aggregation, dengue protease activity, hepatic stellate cell proliferation and cancer cell growth, and also exhibits antibacterial activity. Azaleatin can be used in studies related to subchronic cardiotoxicity, Alzheimer's disease, dengue fever, hyperuricemia, liver fibrosis, gastric cancer and bacterial infections.
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MNK8
0 ImagesMNK8 is a potent STAT3 (signal transducer and activator of transcription 3) inhibitor. MNK8 inhibits STAT3 activation and reduced its DNA binding ability. MNK8 shows good growth inhibition against hepatocellular carcinoma (HCC) cells. MNK8 induces apoptosis in HCC cells. MNK8 reduces prosurvival proteins expression and migration/invasion of HCC cells.
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MMPP
0 ImagesMMPP is an orally active inhibitor of STAT3 and VEGFR2, as well as an activator of PPARγ. MMPP blocks the VEGFR2/AKT/ERK/NF-κB signaling pathway to inhibit angiogenesis. MMPP inhibits ferroptosis and inflammation, and alleviates sepsis-induced myocardial injury. MMPP induces G1-phase cell cycle arrest and apoptosis, and inhibits the growth of non-small cell lung cancer (NSCLC) and solid tumors. MMPP promotes adipogenesis and glucose uptake. MMPP can be used in research related to NSCLC, type 2 diabetes and myocardial injury.
