CCAT2 and breast cancer: Colon cancer‐associated transcript 2 (CCAT2), mapping to 8q24, is upregulated in many tumour tissues and links with clinical characteristics and prognosis in multiple kinds of malignancies, like bladder cancer, gastric cancer, and cervical cancer.12, 13, 14, 15 In addition, CCAT2 is also proved to promote BC progression via the Wnt pathway.16