DAs stimulate anti-tumor immunity.DRD1: agitates tumor growth and inhibits immunosuppression, but ultimately displays the anti-tumor effectDRD2: upregulated in malignant tumorsDifferent DA effects on T cell functions depends on DRs level, composition, or dopamine response in various subtypes.Regulate tumor growth via prolactin release. The gene discussed is DRD1; the disease is neoplasm.