An association between HOX expression and poor prognosis has already been established for breast cancer and lung adenocarcinoma (HOXB7), renal clear cell carcinoma (HOXC11), mesothelioma (HOXB4), oral squamous cell carcinoma (HOXD13), gastric cancer (HOXC6), thyroid cancer (HOXC10), bladder cancer (HOXB13), and AML (HOXA9) [101]. Here, HOXB7 is linked to breast cancer.