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 (309)
Related Products (309)
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Antibodies (5)
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AH057
0 ImagesCat. No.: HY-183519CAS No.: 118499-11-9
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Betavulgarin
0 ImagesCat. No.: HY-N15201CAS No.: 51068-94-1Betavulgarin is an anticancer agent. Betavulgarin can be isolated from Sugar Beet (Beta vulgaris). Betavulgarin suppresses the proliferation, migration, colony formation, and mammosphere formation of breast cancer cells, and reduces the size of the CD44+/CD24− subpopulation and the expression of the self-renewal- related genes C-Myc, Nanog and Oct4. Betavulgarin promotes BCSCs death through the regulation of Stat3/Sox2 signaling.
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Plumericin
0 ImagesPlumericin is an anti-inflammatory, antioxidant, and antibacterial agent. Plumericin reduces Apoptosis, promotes Nrf-2 and inhibits NF-κB and AhR activation, blocks STAT3 signaling. Plumericin inhibits Mycobacterium tuberculosis growth. Plumericin can be used for the research of chronic kidney disease, vascular diseases, inflammatory bowel diseases, peritonitis, and tuberculosis.
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LC28
0 ImagesCat. No.: HY-153652CAS No.: 723746-47-2LC28 is a STAT3 inhibitor with a human STAT3 Ki of 3.92 μM. LC28 targets the DNA-binding domain of STAT3, inhibits STAT3-DNA binding, and suppresses STAT3 signaling. LC28 induces apoptosis and suppresses survival of cisplatin-resistant ovarian cancer cells. LC28 can be used for the research of Cisplatin (HY-17394)-resistant ovarian cancer.
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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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ENT-03
0 ImagesCat. No.: HY-164425CAS No.: 2597832-98-7ENT-03 is a centrally acting mammalian aminosterol. ENT-03 upregulates cFos activation, inhibits PTP1b and induces phosphorylation of STAT3. ENT-03 normalizes blood glucose, induces weight loss. ENT-03 can be used in the research of type 2 diabetes and obesity.
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Phaeosphaeride A
0 ImagesCat. No.: HY-N19899CAS No.: 910050-51-0Phaeosphaeride A is a STAT3 inhibitor with an IC50 of 0.61 mM against human STAT3. It exhibits higher selectivity for STAT3 over STAT1 and STAT5. Phaeosphaeride A inhibits the binding of STAT3 to DNA, STAT3-dependent transcriptional activity, as well as IL-6-induced phosphorylation and signaling of STAT3. Phaeosphaeride A activates the JNK, p38, Akt, CREB and STAT5A/B signaling pathways. Phaeosphaeride A induces oxidative stress (ROS), exerts antiproliferative and growth-inhibitory effects in cancer cells, and shows low cytotoxicity toward non-cancerous cells. Phaeosphaeride A is a phytotoxin and a weak animal toxin, with no antimicrobial activity against tested bacteria and fungi. Phaeosphaeride A can be used in research related to conditions such as cervical cancer and multiple myeloma, as well as weed infestations.
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PMMB-187
0 ImagesCat. No.: HY-164521CAS No.: 2162952-37-4PMMB-187 is a selective STAT3 inhibitor with an IC50 value of 1.81 μM for MDA-MB-231 cells. PMMB-187 induces apoptosis (Apoptosis) in MDA-MB-231 cells by inhibiting STAT3 transcriptional activity, nuclear translocation, and downstream target gene expression, while also reducing mitochondrial membrane potential, generating reactive oxygen species (ROS), and upregulating the expression levels of apoptosis-related proteins. PMMB-187 has potential applications in cancer research.
