cGAMP Sodium salt is widely used in immunological research due to its role as a potent stimulator of the STING (stimulator of interferon genes) pathway. It is employed in studies focusing on innate immunity, particularly in understanding how cells detect and respond to cytosolic DNA, which is often associated with infections or cellular damage. Researchers utilize it to induce the production of type I interferons and other cytokines, making it a valuable tool in exploring antiviral and antitumor immune responses. Additionally, it is used in the development of vaccines and immunotherapies, where activation of the STING pathway can enhance the body's immune defense against pathogens or cancer cells. Its application also extends to studying autoimmune diseases and inflammatory conditions, providing insights into the regulation of immune responses.