Indeed, coordinate silencing of miR-210 target genes, including tumor protein p53-inducible protein 11 (TP53I11), homeobox A1 (HOXA1), and non-receptor protein tyrosine phosphatase type 1 (PTPN1), dramatically decreases tumor cell susceptibility to CTL-mediated lysis [13]. The gene discussed is PTPN1; the disease is neoplasm.