Upregulation of biglycan (BGN; also known as proteoglycan-1 and dermatan sulfate PG-1) has been reported in multiple types of solid tumors, including prostate [112], pancreatic [113], gastric [114], colon [115], endometrial [116,117,118], bladder [119] and breast cancers [120]. The gene discussed is BGN; the disease is breast carcinoma.