GSK8612 is a highly selective and potent Tank-binding Kinase-1 (TBK1) inhibitor, with a pIC50 of 6.8 for recombinant TBK1[1].

GSK8612 inhibits toll-like receptor (TLR)3-induced IRF3 phosphorylation in Ramos cells and type I IFN secretion in primary human mononuclear cells. In THP1 cells, GSK8612 is able to inhibit secretion of IFNβ in response to dsDNA and cGAMP, the natural ligand for STING[1].

[1]. Thomson DW, et al. Discovery of GSK8612, a Highly Selective and Potent TBK1 Inhibitor. ACS Med Chem Lett. 2019 Mar 11;10(5):780-785.