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 Ligands
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STAT3 Related Products (365)
Related Products (365)
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Antibodies (5)
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PI3K/Akt/mTOR-IN-7
0 ImagesCat. No.: HY-183272CAS No.: 2925588-01-6PI3K/Akt/mTOR-IN-7 is an AKT/mTOR and JAK2/STAT3 inhibitor. PI3K/Akt/mTOR-IN-7 restores p-Akt, p-mTOR, and p-STAT3 expression, reduces pro-apoptotic Caspase-3 mRNA expression. PI3K/Akt/mTOR-IN-7 reduces intracellular ROS accumulation and inhibits NO production. PI3K/Akt/mTOR-IN-7 can be used for research on stroke, Alzheimer's disease and Parkinson's disease.
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CHI3L1-IN-7
0 ImagesCat. No.: HY-181783CAS No.: 2248987-74-6CHI3L1-IN-7 is a selective CHI3L1 inhibitor with a Kd of 7.40 μM and an IC50 of 15.4 μM. CHI3L1-IN-7 blocks CHI3L1's interaction with galectin-3, inhibits STAT3 phosphorylation, reduces the viability of multicellular 3D glioblastoma spheroids. CHI3L1-IN-7 can be used for the research of glioblastoma and CHI3L1-mediated tumor immune regulation.
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PROTAC c-Met degrader-5
0 ImagesCat. No.: HY-175320PROTAC c-Met degrader-5 is an orally active c-Met PROTAC degrader. PROTAC c-Met degrader-5 induces c-Met degradation via Cullin-CRBN, with a DC50 value of 0.32 nM, and inhibits the phosphorylation of c-Met and its downstream signaling molecule STAT3. PROTAC c-Met degrader-5 inhibits cancer cell proliferation, migration and invasion, induces apoptosis, alters cell cycle distribution, and suppresses the growth of EBC-1 xenograft tumors. PROTAC c-Met degrader-5 can be used to study MET-driven cancers as well as Tepotinib (HY-14721)-resistant cancers harboring c-MetD1228N and c-MetY1230H mutations.
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S3D5
0 ImagesCat. No.: HY-179243CAS No.: 3033746-21-0S3D5 is a highly efficient and selective PROTAC degrader targeting STAT3 (KD = 4.35 μM). S3D5 induces degradation of STAT3 in HepG2 cells without significant effects on other STAT proteins. S3D5 exhibits good anti-hepatocellular carcinoma cell proliferation activity, which can be explained by activating the p53 pathway. S3D5 degradation of the STAT3 protein is mediated by the ubiquitin–proteasome system (UPS). S3D5 can be used for the study of hepatocellular carcinoma.
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NF-κB/STAT3/iNOS-IN-1
0 ImagesCat. No.: HY-184692NF-κB/STAT3/iNOS-IN-1 is a NF-κB/STAT3/iNOS inhibitor. NF-κB/STAT3/iNOS-IN-1 reduces the expression of inflammatory mediators TNF-α, IL-1β, IL-6, IL-8 and COX-2. NF-κB/STAT3/iNOS-IN-1 upregulates the expression of epithelial barrier-related proteins E-cadherin, Occludin and Zonula occludens-1. NF-κB/STAT3/iNOS-IN-1 alleviates disease severity and histopathological damage in mouse colitis models. NF-κB/STAT3/iNOS-IN-1 can be used for the research of inflammatory bowel disease (colitis).
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AUH-6-96
0 ImagesCat. No.: HY-115438CAS No.: 1005144-85-3AUH-6-96 is a JAK/STAT signaling inhibitor. AUH-6-96 reduces Unpaired-induced transcriptional activity in Drosophila cells and blocks tyrosine phosphorylation of STAT92E. AUH-6-96 blocks both constitutive and IL-6-induced phosphorylation of STAT3. AUH-6-96 decreases the level of tyrosine-phosphorylated JAK3. AUH-6-96 induces cancer cell Apoptosis by downregulating the expression of anti-apoptotic genes downstream of STAT3. AUH-6-96 selectively reduces the viability of cancer cells with abnormal JAK/STAT signaling pathway. AUH-6-96 is applicable to related research on Hodgkin's lymphoma, breast cancer, and prostate cancer.
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STAT3 antagonist-1
0 ImagesCat. No.: HY-189287STAT3 antagonist-1 is a selective STAT3 antagonist. STAT3 antagonist-1 induces Autophagy-associated cell death. STAT3 antagonist-1 inhibits cancer stemness and epithelial-mesenchymal transition. STAT3 antagonist-1 can be used for research on pancreatic cancer and colorectal cancer.
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SNX631
0 ImagesCat. No.: HY-187035CAS No.: 868066-26-6SNX631 is an orally active and selective CDK8/CDK19 inhibitor. SNX631 reduces the phosphorylation of STAT1/STAT3 S727, and upregulates miR-21-5p, miR-21-3p and miR-221 in cancer cells. SNX631 transcription-independently inhibits meiotic resumption in mouse oocytes, blocks nuclear envelope breakdown, first polar body extrusion and mitochondrial expansion and aggregation, with no cytotoxicity. SNX631, in combination with Lapatinib (HY-50898) or Trastuzumab (HY-P9907), synergistically inhibits cancer cell growth, upregulates the tumor suppressor BTG2, prevents Lapatinib-induced upregulation of oncogenic miRNAs, overcomes drug resistance, reduces the infiltration of αSMA+ stromal fibroblasts and ARG1+ M2 macrophages, and exhibits favorable biosafety. SNX631 can be used in studies related to HER2-positive breast cancer and cancer.
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JAK2/STAT3-IN-2
0 ImagesCat. No.: HY-183370JAK2/STAT3-IN-2 is an orally active JAK2/STAT3 inhibitor. JAK2/STAT3-IN-2 inhibits the phosphorylation of tyrosine residues in JAK2 and STAT3, blocks downstream signal transduction, disrupts the dimerization and nuclear translocation of STAT3, and suppresses pro-inflammatory transcriptional activity. JAK2/STAT3-IN-2 inhibits the expression of IL-17A and IL-17F, reduces immune cell infiltration, and inhibits the production of NO simultaneously. JAK2/STAT3-IN-2 exerts a protective effect in a mouse model of ulcerative colitis induced by DSS (HY-116282C). JAK2/STAT3-IN-2 can be used for the research of ulcerative colitis.
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NW16
0 ImagesCat. No.: HY-169403NW16 is an orally active inhibitor for STAT3 with Kd of 11.0 μM. NW16 arrests the cell cycle at S phase, induces apoptosis in HCT116, and inhibits the proliferation of cancer cell HCT116, A549, and B16 with IC50s of 0.28, 1.22, and 9.86 μM, respectively. NW16 induces the production of ROS, inhibits the PI3K/AKT signaling pathway, and thus exhibits antitumor efficacy in mouse model.
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NS06
0 ImagesCat. No.: HY-187511CAS No.: 3133892-41-5NS06 is a dual-target inhibitor of STAT3 and HDAC, with a Kd of 5.82 μM for human STAT3, an IC50 of 129.1 nM for human HDAC1, an IC50 of 451.2 nM for human HDAC3, and an IC50 of 230.4 nM for human HDAC6. NS06 binds to STAT3 to inhibit its phosphorylation without altering the total STAT3 level; it inhibits the enzymatic activity of HDAC via coordination with Zn2+ at the catalytic center of HDAC1 and increases the acetylation level of histone H3. NS06 induces cell apoptosis, inhibits cancer cell migration and colony formation, and exhibits antiproliferative activity against solid tumor cells and 3D tumor spheroid models. NS06 is applicable to solid tumor-related research.
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MRC-G-001
0 ImagesCat. No.: HY-175009MRC-G-001 is a Genipin (HY-17389) derivative with an IC50 of 117 μM against A549 cancer cells. MRC-G-001 inhibits the phosphorylation of EGFR, JAK1, and STAT3, and modulates epithelial-mesenchymal transition (EMT)-related protein expression, thereby attenuating cell migration and invasion. MRC-G-001 induces cell cycle arrest and cell apoptosis. MRC-G-001 can be used for the study of cancers such as non-small-cell lung cancer.
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STAT3-IN-33
0 ImagesCat. No.: HY-164533CAS No.: 2763208-56-4
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CDK6/9-IN-2
0 ImagesCat. No.: HY-175013CAS No.: 3068529-24-5CDK6/9-IN-2 is a highly active dual inhibitor of CDK6 (IC50 = 15 nM) and CDK9 (IC50 = 22 nM). CDK6/9-IN-2 is selective for CDK2, CDK8, and CDK11. CDK6/9-IN-2 inhibits the proliferation of HaCaT cells induced by IFN-γ/TNF-α and suppresses the STAT3 pathway and the expression of inflammatory factors. CDK6/9-IN-2 can alleviate psoriatic dermatitis and is useful in psoriasis research.
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PKM2 activator 11
0 ImagesCat. No.: HY-180795PKM2 activator 11 (Compound 23) is a PKM2 activator with an AC50 value of 92.12 nM. PKM2 activator 11 promotes PKM2 tetramerization and inhibits its nuclear translocation. PKM2 activator 11 suppresses glycolysis and the PKM2/STAT3 signaling pathway. PKM2 activator 11 induces Apoptosis. PKM2 activator 11 exhibits anti-CRC activity in vitro with potency and selectivity.
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pro-FTY
0 ImagesCat. No.: HY-175201CAS No.: 3064707-13-4pro-FTY, a FTY720 (HY-12005) anticancer prodrug, is a sphingosine-1-phosphate (S1P) (HY-108496) inhibitor. pro-FTY specifically inhibits S1P signaling in cancer cells using a drug delivery system (DDS) that reacts with acrolein. pro-FTY significantly inhibits the survival of breast cancer cells, including multidrug-resistant cells and its organoids resistant to Paclitaxel (HY-B0015) or Doxorubicin (HY-15142A). pro-FTY potently suppresses tumor growth in 4T1 cells or organoids xenograft tumors mice model while avoiding lymphocytopenia.
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Cyanidin 3,5-diglucoside chloride (Standard)
0 ImagesCat. No.: HY-129138RCAS No.: 2611-67-8Cyanidin 3,5-diglucoside (chloride) (Standard) is the analytical standard of Cyanidin 3,5-diglucoside (chloride) (HY-129138). This product is intended for research and analytical applications. Cyanidin 3,5-diglucoside chloride is an anthocyanin. Cyanidin 3,5-diglucoside chloride inhibits inflammatory cytokines (IL-1α, IL-1β, and IL-6) expression and NO production. Cyanidin 3,5-diglucoside chloride inhibits the phosphorylation of STAT3, IκB, ERK, p38, and AKT. Cyanidin 3,5-diglucoside chloride inhibits high pressure-induced decrease in GLAST. Cyanidin 3,5-diglucoside chloride exerts anti-inflammatory and skin barrier modulating effects. Cyanidin 3,5-diglucoside chloride can be used in retinal research.
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Furowanin A
0 ImagesCat. No.: HY-N3913CAS No.: 911004-72-3Furowanin A is a flavonoid with anti-neoplastic effects. Furowanin A inhibits STAT3/Mcl-1 axis to suppress proliferation, block cell cycle progression, induce apoptosis and promote autophagy. Furowanin A potently inhibits colorectal cancer (CRC) cells.
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(Rac)-8-Gingerol
0 ImagesCat. No.: HY-N16557CAS No.: 77398-92-6(Rac)-8-Gingerol is a non-volatile component. (Rac)-8-Gingerol can be extracted from ginger. (Rac)-8-Gingerol enhances Apoptosis. (Rac)-8-Gingerol decreases the level of phosphorylated EGFR and, accordingly, the phosphorylation levels of its downstream effectors, STAT3 and ERK. (Rac)-8-Gingerol exhibits anticancer activity against colorectal cancer.
