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 Ligands
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STAT3 Related Products (319)
Related Products (319)
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Antibodies (5)
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STAT3-IN-51
0 ImagesCat. No.: HY-180245STAT3-IN-51 is a STAT3 inhibitor that directly binds to the STAT3 SH2 domain. STAT3-IN-51 induces apoptosis, ferroptosis, and immunogenic cell death (ICD) to potentiate anti-tumor immunity. STAT3-IN-51 inhibits STAT3 activation (phosphorylation, p-STAT3) and its downstream signaling. STAT3-IN-51 induces ROS generation, decreases Bcl-2 expression, disruptes mitochondrial function, suppresses GPX4 activity, and promotes lipid peroxidation. STAT3-IN-51 can be used for the study of colorectal carcinoma, breast adenocarcinoma, non-small cell lung cancer (NSCLC) and Cisplatin (HY-17394)-resistant pulmonary adenocarcinoma.
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Ascochlorin
0 ImagesCat. No.: HY-101021CAS No.: 26166-39-2Synonyms: Ilicicolin DAscochlorin (Ilicicolin D), an isoprenoid antibiotic, mediates its anti-tumor effects predominantly through the suppression of STAT3 signaling cascade. Ascochlorin induces apoptosis. Anti-inflammatory activity.
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NSC 850745
0 ImagesCat. No.: HY-175848NSC 850745 is a selective and potent c-Met/STAT3 inhibitor with IC50 values of 210 and 670 nM. NSC 850745 can inhibit cell proliferation, induce G2/M phase arrest and induce apoptosis. NSC 850745 can downregulate AKT-1, VEGF and Bcl-2 expression and upregulate p53, Bax and caspase expression. NSC 850745 can be used for the research of cancer, such as leukemia and colon cancer.
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15-Keto-prostaglandin E2-d9
0 ImagesCat. No.: HY-113205SCAS No.: 2738376-66-215-Keto-prostaglandin E2-d9 is the d9 labeled 15-keto-Prostaglandin E2 (HY-113205). 15-keto-Prostaglandin E2 (15-keto-PGE2) is an endogenous PGE2 metabolite. 15-keto-Prostaglandin E2 inhibits STAT3 activation by binding to the Cys259 residue of STAT3. 15-keto-Prostaglandin E2 binds to and stabilizes EP2 and EP4 receptors. 15-keto-Prostaglandin E2 inhibits the growth and progression of breast cancer cells. 15-keto-Prostaglandin E2 activates PPAR-γ and promotes fungal growth. 15-keto-Prostaglandin E2 disrupts glomerular vascularization during zebrafish development and reduces the surface area of the glomerular filtration barrier.
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JAK2-IN-21
0 ImagesCat. No.: HY-183670CAS No.: 3038340-43-8JAK2-IN-21 is a Janus kinase 2 (JAK2) inhibitor with an IC50 of 12.25 nM. JAK2-IN-21 inhibits the JAK2/STAT3/STAT5 tumor-promoting signaling pathway and reduces JAK2 protein expression. JAK2-IN-21 exhibits selective cytotoxicity against HPV-positive cancer cells and induces cancer cell apoptosis. JAK2-IN-21 can be used in the research of HPV-positive cervical cancer.
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STAT3/NF-κB-IN-2
0 ImagesCat. No.: HY-184734STAT3/NF-κB-IN-2 is a dual STAT3/NF-κB inhibitor that exhibits antiproliferative, antimigratory and anti-invasive activities in cancer cells. STAT3/NF-κB-IN-2 inhibits the transcriptional activities of NF-κB and STAT3, binds to the STAT3-SH2 domain, and blocks STAT3 dimerization. STAT3/NF-κB-IN-2 can be used in studies related to triple-negative breast cancer.
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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 (Compound D19) is an orally active c-Met PROTAC degrader with DC50s of 0.42 and 0.32 nM in EBC-1 and Hs746T cells, respectively. PROTAC c-Met degrader-5 significantly induces cell apoptosis, G1 cell cycle arrest, and inhibits cell migration and invasion. PROTAC c-Met degrader-5 has potent antiproliferative and degradation efficacy against c-Met-addicted cancer cells and Tepotinib (HY-14721)-resistant cancer cells. Pink: c-Met ligand (HY-W425461); Blue: CRBN ligase ligand (HY-14658); Black: linker
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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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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.
