Liu et al. found that the relative mRNA or protein expression of LOX was notably higher in non-small cell lung cancer (NSCLC) tissues compared with adjacent/normal tissues, and the LOX expression was associated with MMP2, MMP9, tumor size, lymph node metastasis, pathological stage, and overall survival (OS) [35]. Here, LOX is linked to metastatic malignant neoplasm in the lymph nodes.