hENT1 protein expression level is strongly correlated with patient outcomes and drug sensitivity in cancer therapies that utilize nucleoside analogs such as cytarabine (e.g., leukemia or lymphoma) or gemcitabine (e.g., pancreatic or lung cancer) [4,60,61,62,63,64,65,66,67]. The gene discussed is SLC29A1; the disease is cancer.