In breast cancer, many lncRNAs such as MIAT (myocardial infarction-associated transcript), SNHG1 (small nucleolar RNA host gene 1), and MALAT1 (metastasis-associated lung adenocarcinoma transcript 1) have been reported to participate in the occurrence, progression, and metastasis of tumors 27-29. The gene discussed is MALAT1; the disease is infarction.