MiR-15b-3p packed into exosomes (exo-miR-15b-3p) secreted by BGC-823 cells is increased in GC cells, tissues and serum and promote the malignant transformation of normal gastric mucosa epithelium cells GES-1 by regulating the dynein light chain Tctex-type 1 (DYNLT1)/Caspase-3/Caspase-9 signaling pathway, with decreased expression of the DYNLT1 gene [32]. Here, DYNLT1 is linked to gastric cancer.