Polyinosinic-polycytidylic acid (Poly I:C) sodium salt (double-stranded) is a TLR3 (Toll-like receptor 3) agonist.
TLR3 recognizes double-stranded RNA and is a major effector of the immune response against viral pathogens. Polyinosinic-polycytidylic acid sodium salt is a double-stranded homopolymer used as a model RNA to study cell signaling at the level of TLR3. Poly I:C is a TRIF-dependent toll-like receptor-3 (TLR3) ligand.
Polyinosinic-polycytidylic acid sodium (Poly(I:C) sodium) is a synthetic analog of double-stranded RNA and an agonist of toll-like receptor 3 (TLR3) and retinoic acid inducible gene I (RIG-I)-like receptors (RIG-I and MDA5). Polyinosinic-polycytidylic acid sodium can be used as a vaccine adjuvant to enhance innate and adaptive immune responses, and to alter the tumor microenvironment. Polyinosinic-polycytidylic acid sodium can directly trigger cancer cells to undergo apoptosis.
Polyinosinic-polycytidylic acid (Poly I:C) treatment inhibits tumor growth in NOD/SCID immunodeficient mice injected with 1205Lu cells. The level of human DNA is 50% lower in mice treated with Polyinosinic-polycytidylic acid[1].
