MSA-2 is an orally available non-nucleotide STING agonist. The non-covalent dimer of MSA-2 binds to STING with nanomolar affinity. It shows anti-tumor activity in syngeneic mouse tumor models, synergizes with anti-PD-1, stimulates tumor secretion of interferon-β, induces tumor regression, and has long-lasting anti-tumor immunity. [3]

Cridanimod (10-carboxymethyl-9-acridanone, CMA) is a potent STING agonist that directly binds to STING and triggers a strong antiviral response through the TBK1/IRF3 route.

CCCP (Carbonyl Cyanide m-Chlorophenylhydrazone) is an oxidative phosphorylation (OXPHOS) inhibitor and mitochondrial proton carrier uncoupler. CCCP inhibits the activation of STING and its downstream signaling molecules TBK1 and IRF3.

Dazostinag disodium (TAK-676) is a synthetic novel interferon gene (STING) agonist that triggers STING signaling pathway activation and type I interferon activation. Dazostinag disodium (TAK-676) is also a highly effective immune system modulator with complete resolution and lasting memory of T cell immunity and the ability to promote lasting interferon-dependent anti-tumor immune responses.

SN-008 is a less active analog SN-011 which is a STING antagonist. SN-008 can be used as a negative control.

diABZI STING agonist-1 (trihydrochloride) is a stimulator of interferon genes (STING) receptor agonist.