ERBB2 and neoplasm: Besides the cell-targeting properties of the preparations reaching HER2-mcherry-SGC-7901 cells or the tumor in vivo, encapsulated 5-fluorouracil (5-FU) together with miR-21 inhibitor nucleotide (miR-21i) were found to be more effective than exosomes loaded with either miR-21i or 5-FU alone[34].