Notably, SLC6A14 expression was positively correlated with the depth of tumor invasion (∗P = 0.023), the disposition to distant metastasis (∗∗P = 0.009), venous invasion (∗P = 0.033), lymph node metastasis (∗P = 0.035), and lymphatic invasion (∗∗P = 0.021) in GC patients (Table 1). Here, SLC6A14 is linked to gastric cancer.