Furthermore, LUAD patients with deep tumour invasion and/or a high T stage (T3/T4), a high American Joint Committee on Cancer (AJCC) 8th edition stage (stage III-IV) and lymph node metastasis (N1-N3) had higher expression levels of HDAC7 (Fig. 3b). The gene discussed is HDAC7; the disease is metastatic malignant neoplasm in the lymph nodes.