RAB19 and colorectal cancer: Some studies have reported that in colorectal cancer, RABs may play an important role in regulating cell cycle and immune-related pathways, and in gastric cancer, the miR495-5p/RAB19 axis inhibits its proliferation, migration, and invasion, so RAB19 perhaps be a potential biomarker for predicting the prognosis and immunotherapeutic response of related tumors (Hu and Ji, 2021; Jewett et al., 2021; Jiang et al., 2022).