M04 is an agonist of STING. It induces the expression of the IFN reporter gene in HEK293T cells expressing wild-type human STING, but does not induce this expression in HEK293T cells expressing the R71H-G230A-R293Q (HAQ) STING variant or in mouse RAW 264.7 cells, indicating that its activity is dependent on allelic and species variations. M04 induces the production of TNF-α, IL-10, IL-1β, and IL-12p70 in human peripheral blood mononuclear cells (PBMCs). At a concentration of 50 µM, M04 stimulates dendritic cells isolated from PBMCs to express the MHC class II cell surface receptor HLA-DR and co-stimulatory molecules CD40, CD80, and CD86, and also enhances their ability to activate T cells in an ex vivo assay. M04 can be used in research on inflammatory immune diseases.

Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months.
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.