Used in immunological research to detect and quantify MHC class II molecules in rabbit samples. Enables study of antigen presentation and immune response activation in experimental models. Commonly applied in studies of autoimmune diseases, transplantation immunology, and vaccine development involving rabbits. Provides a reliable method for measuring immune cell expression levels, particularly in dendritic cells, B cells, and macrophages. Supports evaluation of immunomodulatory effects of drugs or treatments in preclinical research.