Stimulator of interferon genes 1 (STING1) gene promoter (STING promoter)

The Stimulator of interferon genes 1 (STING1) gene promoter, also known as the TMEM173 promoter, is a critical regulatory DNA sequence that controls the expression of the STING protein, a central mediator of the innate immune response to cytosolic DNA (Source: Wikipedia, 2024). In various malignancies, including melanoma and glioma, the STING promoter frequently undergoes epigenetic silencing through hypermethylation of CpG islands, which prevents the production of STING and allows tumors to evade immune surveillance (Source: NIH, 2022). This silencing can be therapeutically reversed using DNA methyltransferase inhibitors (DNMTis) such as decitabine and azacitidine, which promote promoter demethylation and restore STING-mediated signaling (Source: ResearchGate, 2022). Re-activation of the STING pathway via its promoter is a burgeoning strategy in cancer immunotherapy, often intended to sensitize cold tumors to STING agonists or checkpoint inhibitors (Source: BMJ, 2022). Additionally, the STING gene itself is the site of gain-of-function mutations that lead to autoinflammatory diseases like STING-associated vasculopathy with onset in infancy (SAVI), highlighting the importance of precise transcriptional control at this locus (Source: NIH, 2019).

Other names

TMEM173 geneSTING1 promoterTransmembrane protein 173 geneSTING promoter DNAStimulator of interferon genes gene

Inhibition of DNA methyltransferases (DNMTs) to induce demethylation of CpG islands within the promoter region, thereby restoring transcriptional activity and protein expression of STING.