STING Agonist

Vadimezan (DMXAA), the tumor vascular disrupting agent (tumor-VDA), is a murine agonist of the stimulator of interferon genes (STING) and also a potent inducer of type I IFNs and other cytokines. Vadimezan is unable to activate human STING. Vadimezan has anti-influenza virus H1N1-PR8 activities.

MSA-2, a potent and orally available non-nucleotide STING agonist, is bound to STING as a noncovalent dimer with nanomolar affinity. MSA-2 shows EC₅₀s of 8.3 and 24 μM for human STING isoforms WT and HAQ, respectively. MSA-2 stimulates interferon-β secretion in tumors, induces tumor regression with durable antitumor immunity, and synergizes with anti-PD-1 in syngeneic mouse tumor models.

diABZI STING agonist-1 is a tautomerism of diABZI STING agonist-1 tautomerism (HY-112921). diABZI STING agonist-1 is a selective stimulator of interferon genes (STING) receptor agonist, with EC₅₀s of 130, 186 nM for human and mouse, respectively.

diABZI STING agonist-1 (trihydrochloride) is a selective stimulator of interferon genes (STING) receptor agonist, with EC₅₀s of 130, 186 nM for human and mouse, respectively.

SR-717 is a non-nucleotide STING agonist with EC₅₀s of 2.1 μM and 2.2 μM in ISG-THP1 (WT) and ISG-THP1 cGAS KO (cGAS KO) cell lines, respectively. SR-717 is a stable cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) mimetic. Antitumor activity.

c-di-AMP (Cyclic diadenylate) sodium is a STING agonist, which binds to the transmembrane protein STING thereby activating the TBK3-IRF3 signaling pathway, subsequently triggering the production of type I IFN and TNF. c-di-AMP sodium is also a bacterial second messenger, which regulates cell growth, survival, and virulence, primarily within Gram-positive bacteria, and also regulates host immune response. c-di-AMP sodium acts as a potent mucosal adjuvant stimulating both humoral and cellular responses.

STING agonist-3, extracted from patent WO2017175147A1 (example 10), is a selective and non-nucleotide small-molecule STING agonist with a pEC₅₀ and pIC₅₀ of 7.5 and 9.5, respectively. STING agonist-3 has durable anti-tumor effect and tremendous potential to improve treatment of cancer.

diABZI-V/C-DBCO is a STING agonist with an EC₅₀ of 1.47 nM. diABZI-V/C-DBCO activates the STING pathway, induces the production of IFN-I, and stimulates the secretion of IFN-β. diABZI-V/C-DBCO serves as a substrate for cathepsin B, and releases active diABZI-amine via cathepsin B-mediated cleavage. In an orthotopic mouse model of breast cancer, diABZI-V/C-DBCO increases serum IFN-β levels and the frequency of granzyme B⁺ CD8⁺ T cells. diABZI-V/C-DBCO is applicable to research related to triple-negative breast cancer.

NVS-STG2 is a molecular glue that targets STINGSTING by binding to pockets between adjacent STING dimer transmembrane domains, effectively acting as a molecular glue. NVS-STGI enhances the activity of cGAMP by inducing the formation of more abundant and larger oligomers. NVS-STG2 produces antitumor activity in animal models.

STING agonist-20 (compound 95) is a potent STING agonist used in the synthesis of XMT-2056. STING agonist-20 can be used as a vaccine adjuvant in the study of cancer and other inflammatory, immune diseases.

STING agonist-22 (CF501) is a potent non-nucleotide STING agonist. STING agonist-22 is a adjuvant by activating STING to induce the type I interferon (IFN-I) response and proinflammatory cytokine production. STING agonist-22 can be used as an adjuvant to boost the original protein vaccine, producing potent, broad, and long-term immune protection. STING agonist-22 can be used for SARS-CoV-2 variants and sarbecovirus diseases research.

STING agonist-1 (G10) is human-specific STING agonist that elicits antiviral activity against emerging Alphaviruses. G10 potently blocks replication of Alphavirus species Venezuelan Equine Encephalitis Virus (VEEV) with IC₉₀ of 24.57 μM.

E7766 diammonium salt is a macrocycle-bridged STING agonist with a K_d of 40 nM. E7766 diammonium salt shows potent pan-genotypic and antitumor activities.

Fendiline hydrochloride, a diphenylalkylamine type of antianginal agent, is an L-type calcium channel blocker (IC₅₀ of 17 µM). Fendiline hydrochloride is also a selective K-Ras inhibitor, and has no effect on H-Ras and N-Ras. Fendiline hydrochloride inhibits K-Ras plasma membrane localization (IC₅₀ of 9.64 μM), inhibits K-Ras signal output and blocks the proliferation of pancreatic, colon, lung, and endometrial cancer cell lines expressing oncogenic mutant K-Ras. Fendiline hydrochloride is a STING agonist and is able to inhibit the growth of multiple refractory cold tumors (MC38, CT26 and B16F10).

IACS-8803 disodium is a highly potent cyclic dinucleotide STING agonist. IACS-8803 disodium has a robust systemic antitumor efficacy.

Dazostinag disodium (TAK-676) is an agonist of STING, triggering the activation of STING signaling pathway and type I interferons. Dazostinag disodium is also a modulator of immune system, resulting complete regressions and durable memory T-cell immunity. Dazostinag disodium promotes durable IFN-dependent antitumor immunity.

SNX281 is a selective STING agonist, with IC₅₀ values of 4.1, 4.5, 10.7, and 3.7 μM against human, mouse, rat, and monkey STING, respectively. SNX281 undergoes homodimerization at the STING binding site, triggering a conformational shift of STING from an inactive open state to an active closed state, thereby driving downstream STING-dependent signaling pathways. SNX281 induces type I interferons, IFN-β, TNF-α, IL-6, cytokine release, T cell responses, and long-lasting immune memory. SNX281 exhibits anti-tumor activity and is applicable to research related to colorectal cancer, melanoma, advanced solid tumors, lymphoma, and ovarian cancer.

STING agonist-4 is an stimulator of Interferon Genes (STING) receptor agonist with an apparent inhibitory constant (IC₅₀) of 20 nM. STING agonist-4 is a two symmetry-related amidobenzimidazole (ABZI)-based compound to create linked ABZIs (diABZIs) with enhanced binding to STING and cellular function.

diABZI-C2-NH2, an active analogue containing a primary amine functionality, is a STING agonist.

c-di-AMP diammonium is a STING agonist, which binds to the transmembrane protein STING thereby activating the TBK3-IRF3 signaling pathway, subsequently triggering the production of type I IFN and TNF. c-di-AMP diammonium is also a bacterial second messenger, which regulates cell growth, survival, and virulence, primarily within Gram-positive bacteria, and also regulates host immune response. c-di-AMP diammonium acts as a potent mucosal adjuvant stimulating both humoral and cellular responses.