A few of those upregulated were IDO1 (Indoleamine 2,3‐Dioxygenase 1)31; LCP1 (Lymphocyte Cytosolic Protein 1)32; BST2 (Bone Marrow Stromal Cell Antigen 2)33; and CEACAM6 (Carcinoembryonic Antigen‐Related Cell Adhesion Molecule 6),34 which are all involved in cancer progression. Here, IDO1 is linked to cancer.