PPA2 and neoplasm: In addition, many tumors exhibit significant differences in PPA2 promoter methylation levels between tumor and normal tissues (Figures 6B–N), including HNSC (p=1.356780E-03), LUSC (p=1.413820E-02), BRCA (p=1.80899739632423E-11), ESCA (p=7.351200E-04), COAD (p=8.848700E-04), TGCT (p=1.62447832963153E-12), UCEC (p=1.258540E-03), LIHC (p=1.09134923320653E-13), KIRC (p=1.84160464655747E-11), THCA (p=2.066300E-02), PRAD (p=7.99730000000665E-07), KIRP (p=1.6222000409627E-09), BLCA (p=4.30322444344711E-13).