JAK-STAT-IN-1 is a specific JAK-STAT inhibitor indicated for the study of autoimmune diseases.

Triacetylresveratrol (Acetyl-trans-resveratrol) has anti-cancer activity,it inhibits the phosphorylation of STAT3 and NFκB, down-regulates Mcl-1, and up-regulates Bim and Puma in pancreatic cancer cells.

AG490 (Tyrphostin B42) is an inhibitor of EGFR (IC50: 0.1 μM). It is 135-fold more selective for EGFR than ErbB2, also inhibits JAK2 with no effect to Lyn, Lck, Syk, Btk, and Src.

TPCA-1 (TPCA1) is an effective and specific IKK-2 inhibitor (IC50: 17.9 nM); shows >22-fold selectivity over IKK-1 and >550-fold selectivity over others kinases and enzymes.

5-epi-Arvestonate A, a sesquiterpenoid extracted from Seriphidium transiliense whole plants, enhances melanogenic production by stimulating MITF and tyrosinase family gene transcription. Additionally, it suppresses IFN-γ-chemokine expression via the JAK/STAT signaling pathway in HaCaT cells [1].

MNK8 (3-methyl-6-(naphthalen-1-yl)pyrimidine-2,4(1H,3H)-dione) is a potent STAT3 inhibitor that reduces the ability of STAT3 to bind to DNA and also has a good growth inhibition effect on liver cancer cells [1].

Momelotinib (LM-1149) is an orally bioavailable small-molecule inhibitor of Janus kinases 1 and 2 (JAK1/2) with IC50 of 11 nM/18 nM. JAK1/2 inhibitor CYT387 competes with JAK1/2 for ATP binding, which may result in inhibition of JAK1/2 activation, inhibition of the JAK-STAT signaling pathway, and so the induction of apoptosis and a reduction of tumor cell proliferation in JAK1/2-expressing tumor cells.

Atranorin shows significant antinociceptive and antiinflammatory activities, it has a relevant redox-active action, acting as a pro-oxidant or antioxidant agent depending on the radical, also, it will exert cytoprotective effects on cells under oxidative

BP-1-102 is an orally active, effective and specific STAT3 inhibitor. BP-1-102 binds Stat3 (Kd: 504 nM), then blocks Stat3-phosphotyrosine (pTyr) peptide interactions and Stat3 activation (4-6.8 μM), and selectively inhibits migration, survival, growth, and invasion of Stat3-dependent tumor cells. The BP-1-102-mediated inhibition of aberrantly active Stat3 in tumor cells suppresses the expression of c-Myc, Bcl-xL, Cyclin D1, Survivin, and VEGF.

Mollugin (Rubimaillin) may be a JAK2 inhibitor and inhibits LPS-induced inflammatory responses by blocking the activation of the JAK-STAT pathway. Mollugin as a candidate for a chemotherapeutic agent in OSCCs via the upregulation of the HO-1 and Nrf2 pathways and the downregulation of NF- κ B. Mollugin may be a novel therapeutic candidate for bone loss-associated disorders including osteoporosis, rheumatoid arthritis, and periodontitis. Also, it has anticancer efficacy, can modulate the HER2 pathway in HER2-overexpressing Y cells with a potential role in the treatment and prevention of human breast and ovarian Y with HER2 overexpression.

Allylpyrocatechol is an antioxidant. Allylpyrocatechol attenuates collagen-induced arthritis via attenuation of oxidative stress secondary to modulation of the MAPK, JAK/STAT, and Nrf2/HO-1 pathways.

Lipid-derived lipoxins are produced at the site of vascular and mucosal inflammation where they down-regulate polymorphonuclear leukocyte recruitment and function. 15(R)-Lipoxin A4 (15(R)-LXA4) is derived from the aspirin-triggered formation of 15(R)-HETE from arachidonic acid. [1] [2] 15(R)-LXA4 inhibits LTB4-induced chemotaxis, adherence, and transmigration of neutrophils with twice the potency of LXA4 demonstrating activity in the nM range.[2] [3] The anti-inflammatory effects of aspirin may be ascribed in part to the ability of 15(R)-LXA4 to regulate leukocyte function.[4] 15(R)-LXA4 is reported to promote resolution of inflammation in LPS-treated stromal cells derived from intermediate-stage diseased supraspinatus tendons as evidenced by increased expression of the STAT-6 pathway target genes, ALOX15 and CD206.[5]

ζ-Stat (NSC37044), a specific and atypical inhibitor of PKC-ζ with an IC50 of 5 μM, demonstrates the ability to inhibit proliferation and induce apoptosis in melanoma cell lines, exhibiting antitumor activity in vitro[1][2].

1. Curculigoside (Curculigoside A) can prevent bone loss , improve osteogenesis and inhibit osteoclastogenesis of hAFSCs, suggesting its potential use to regulate hAFSC osteogenic differentiation for treating bone disorders. 2. Curculigoside can promote calcium deposition and increase the levels of ALP and Runx2 in osteoblasts under oxidative stress via anti-oxidative character. 3. Curculigoside possesses potent antioxidant properties against oxidative stress insults. can protect endothelial cells against oxidative injury induced by H2O2, suggesting that this compound may constitute a promising intervention against cardiovascular disorders.

STAT3-IN-1 selective and orally active inhibitor of STAT3(in HT29 and MDA-MB 231 cells, with IC50 values of 1.82 μM and 2.14 μM , respectively), induces tumor apoptosis.

BRD0476 is a suppressor of pancreatic β-cell apoptosis. BRD0476 inhibits interferon-gamma (IFN-γ)-induced Janus kinase 2 (JAK2) and signal transducer and activation of transcription 1 (STAT1) signaling to promote β-cell survival. BRD0476 inhibits JAK-STAT

SC-1 is a a derivative of the multiple tyrosine kinase inhibitor sorafenib. SC-1 potently inhibits the phosphorylation of STAT3 by blocking STAT3 phosphorylation and activation, and induces apoptosis in hepatocellular carcinoma cell lines[1].

Interferon alfa, a type I interferon, activates new genes, displaying strong antiviral and antiproliferative effects on target cells. It signals through receptor-mediated activation of Stat1 and Stat2, which heterodimerize into a STAT complex binding with the DNA-binding protein IRF-9 (p48) to form ISGF-3 (IFN-stimulated gene factor 3). This complex further activates driver genes to fulfill its antiviral role [1].

1. Linderalactone showed significant inhibitory effects on superoxide anion generation by human neutrophils in response to fMLP/CB, values of IC5 is 8.48 μg/mL.

3-O-Methylgallic acid (3,4-Dihydroxy-5-methoxybenzoic acid) reduces cell proliferation in Caco-2 cells(IC50 = 24.1 μM) more effectively than anthocyanins and may offer protection against colon cancer after its formation in the gut. 3-O-Methylgallic acid inhibits transcription factors NF-κB, AP-1, STAT-1, and OCT-1 which are known to be activated in colorectal cancer.

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

Beclometasone dipropionate (Vancenase) is the dipropionate ester of a synthetic glucocorticoid with anti-inflammatory and immunomodulating properties. After cell surface receptor attachment and cell entry, beclomethasone enters the nucleus where it binds to and activates specific nuclear receptors, resulting in an altered gene expression and inhibition of proinflammatory cytokine production.

SC-43 is a potent and orally active agonist of SHP-1 (PTPN6). SC-43 inhibits the phosphorylation of STAT3 and induces cell apoptosis, and with anti-fibrotic and anticancer effects.

HAT-SIL-TG-1&AT, a hypoxia-activated prodrug, functions as a Janus tyrosine kinase (JAK) inhibitor demonstrating antitumor effects by inhibiting JAK-STAT signaling within tumor tissues. It also suppresses the proliferation of HEL cells and downregulates phosphorylated STAT3/5 in hypoxic conditions.

Stafib-1 is a selective inhibitor of STAT5β targeting SH2 domain with an IC50 of 154 nM and a Ki of 44 nM.

INCB16562 is a novel, selective, and orally bioavailable small-molecule inhibitor of JAK1 and JAK2 markedly selective over JAK3. Treatment of myeloma cells with INCB16562 potently inhibited interleukin-6 (IL-6)-induced phosphorylation of STAT3. INCB16562 abrogated the protective effects of recombinant cytokines or bone marrow stromal cells and sensitized myeloma cells to cell death by exposure to dexamethasone, melphalan, or bortezomib. Oral administration of INCB16562 antagonized the growth of myeloma xenografts in mice and enhanced the antitumor activity of relevant agents in combination studies. INCB16562 is a potent JAK1/2 inhibitor and that mitigation of JAK/STAT signaling by targeting JAK1 and JAK2 will be beneficial in the treatment of myeloma patients, particularly in combination with other agents. ( source: Neoplasia. 2010 Jan;12(1):28-38. ).

Stafia-1 is a potent STAT5a inhibitor ( IC50=22.2 μM). Stafia-1 displays high selectivity over STAT5b and other STAT family members.