CLDN7 and neoplasm: Additionally, the relationship between Claudin‐1 expression and the clinical characteristics of TSCC was analyzed (Table 1), and the results showed that Claudin‐1 expression was associated with the clinical T stage (p = 0.02) and tumor, node, metastasis (TNM) stages (p = 0.04) of TSCC, which indicated that the lower the expression of Claudin‐1, the larger the size of the primary tumor and the later the TNM stage.