According to the study by Xu et al. [153], the following set of proteins isolated from EVs derived from Luminal B BC was characterized through proteomic analysis: MYL6, AFDN, tight junction-associated proteins, extracellular matrix-related receptor (ECM–receptor) interaction-associated proteins RELN and GP1BB, fructose and mannose metabolism-related proteins SLC2A14 and SLC2A3, glucose metabolism-related proteins SLC2A14 and SLC2A3, and insulin signaling pathway-associated proteins PKLR and PYGM (Table 7). This evidence concerns the gene SLC2A3 and breast cancer.