ABCG2 and carcinoma: Strikingly, these carcinoma cell lines which are of distinct cell lineage formed EVs that were identified using vesicular markers; in N-87 cells, EVs were identified using an antibody to the ERM complex (Figure 7A), whereas EVs in MCF-7/FLV1000 cells were identified with antibodies to both ABCG2 and ERM complex (Figure 7B).