DJ-1 has been demonstrated to be overexpressed in many types of tumor, including uveal melanoma, non-small cell lung carcinoma (NSCLC), hepatocellular carcinoma, pancreatic ductal adenocarcinoma (PDAC), ovarian carcinoma, breast cancer, and esophageal squamous cell carcinoma (ESCC)3. The gene discussed is PARK7; the disease is breast cancer.