Nur77, also known as TR3 or NGFI-B, is a transcription factor of the NR4A nuclear receptor family. Previous research found that Nur77 has a dual role in tumorigenesis and cancer progression through regulation of oncogenes such as CCND2, E2F1, TXNDC5 and BIRC5, acting either as an oncogene or as a tumor suppressor depending on the cancer type.