Cayman mL RR-S2 CDA (ammonium salt)

mL RR-S2 CDA is a synthetic cyclic dinucleotide (CDN) that contains non-canonical 25-phosphodiester bonds and is an activator of stimulator of interferon genes (STING). It contains mixed linkages (mL) with both 25 and 35 linkages, which leads to increased thermal stability of human STING in a differential scanning fluorimetry (DSF) assay. mL RR-S2 CDA increases type I interferon production by THP-1 human monocytes relative to unmodified cyclic di-AMP (CDA; Item No. ), indicating the mL enhances its action at human STING. It induces expression of IFN-β and the pro-inflammatory cytokines TNF-α, IL-6, and Mcp-1 in murine bone marrow macrophages (BMM) isolated from wild-type, but not STING^-/-, mice. mL RR-S2 CDA also induces IFN-β expression in peripheral blood mononuclear cells (PBMCs) isolated from donors carrying STING^WT/WT, STING^WT/REF, and STING^WT/HAQ alleles. In vivo, mL RR-S2 CDA initiates tumor regression and prevents tumor growth upon tumor cell reimplantation in 4T1 murine mammary and CT26 murine colon cancer models.

WARNING This product is not for human or veterinary use.