The ranking of gene expression levels from the highest to the lowest values based on the delta Ct method is as follows: in relatively healthy, adjacent normal mucosa Bif-1, BECN1, ATG13, BAX, BCL2, ULK1, UVRAG, in cancer tissue Bif-1, BECN1, BAX, ATG13, BCL2, ULK1, UVRAG, see Table 2. Here, BECN1 is linked to cancer.