TH5487 is an inhibitor of 8-oxoguanine DNA glycosylase 1 (OGG1), which is part of the DNA base excision repair pathway. TH5487 as shown to inhibit OGG1-dependent proinflammatory gene expression by binding in the OGG1 active site, preventing OGG1 from engaging damaged DNA in vitro and in cells, resulting in decreased proinflammatory gene expression.