MCF-7/AdrR cells were grown on a four-chamber polystryrene vessel tissue culture glass slide, washed with PBS, and fixed with 95% ethanol before incubation with mouse anti-EMMPRIN monoclonal antibody. After incubation with FITC-conjugated anti-mouse IgG antibody for 30 min, the slides were washed with PBS and ddH₂O, covered by micro cover glasses with 50% glycerin (pH 9.5), and viewed by phase contrast. Results of two similar experiments show EMMPRIN to be overexpressed in MDR cancer cells. For details, see the article by Yang et al. 420