Figure 1. Analysis of SAAL1 mRNA expression. Expression levels of SAAL1 in (A) normal tissues, (B) tumor cell lines, (C) tumor tissues and paired adjacent noncancerous tissues in TCGA datasets, and (D) normal and tumor tissue samples combined, respectively, from GTEx and TCGA databases. *P<0.05; **P<0.01; ***P<0.001; ****P<0.0001; ns, not significant.