PIF1 and neoplasm: Besides, the levels of FKBP10, PIF1, and PMAIP1 in nearly all tumor tissues were elevated in contrast with those in paired normal samples; conversely, in almost every case, tumor tissues had lower expression of PDK4, ALDH1L1, ACACB, ACSF2, EPHX2, GATM, ACAT1, and ETFDH than their matched normal tissues.