Epitope analysis of CD68 antigens

: Different epitopes of CD68 antigen are detectable by three new generated monoclonal antibodies (MABs) BL-M68/1-3 (all mouse IgM). The MAB BL-M68/3 reacts with an epitope, which is stable also in formalin-fixed paraffin-embedded tissues. In immunohistochemical blocking experiments using the own biotinylated MABs and six CD68 MABs from the IV. Workshop on Human Leucocyte Differentiation Antigens two new epitopes could be defined. The number of known CD68 epitopes increases at least up to seven.