TCGA LAT1–FUT3 analysis: CA19-9–producing tumors show lower LAT1 and higher FUT3; an inverse LAT1–FUT3 correlation is specific to PDAC and esophageal adenocarcinoma, implying limited BPA suitability in CA19-9-producing tumors. This evidence concerns the gene FUT3 and esophageal adenocarcinoma.