Our results demonstrated that 5 of the 6 up-regulated mRNAs in “HTLV-1 infection pathway” increased (ICAM1, WNT2B, MYC, HLA-F and TGF-β1) and 3 of the 5 down-regulated mRNAs in “Pathways in cancers” decreased (CDH1, PTENP1, HSP90AA1) (Figure 5). This evidence concerns the gene PTENP1 and cancer.