Table 2.

Additional breast cancer-derived exosomal proteins and their functional roles.

Role	Exosomes
Immune evasion	CALR [97] MHC Class I molecules [33, 37, 44, 56] PSME2 [97]
miRNA biogenesis	Dicer [64] Ago2 [64] TRBP [64]
Integrin binding/signaling partner	CD63 [45, 49, 50, 52, 64, 78, 98, 139] CD9 [45, 51, 64, 65, 133, 138, 139]