Wei et al. [57] used qRT-PCR to show that miR-15b-3p is highly expressed in tissues, serum, cells and sEVs, enhancing the tumorigenesis and malignant transformation of GC by inhibiting the NYDLT1/Caspase-3/Caspase-9 pathway and suppressing apoptosis in GC. Here, CASP9 is linked to gastric cancer.