Used in immunological research to quantify MHC class II molecules in rat samples, this ELISA kit enables the study of antigen presentation and immune response activation. It is particularly valuable in investigating autoimmune diseases, transplant rejection, and infectious disease models in rats. Researchers use it to monitor changes in immune cell activity, especially in dendritic cells, macrophages, and B cells. The kit supports drug development and evaluation of immunomodulatory therapies by providing a reliable measure of MHC II expression levels in experimental conditions.