PDK4 and neoplasm: FOSB, FOS, PTGS2, EGFR, EFEMP1, KLF4, CXCL2, GPC3, ITGA7, CHRDL1, CD36, PDK4, BMP2, ATF3, ADIPOQ, and ADAMTS1 expression was much lower in tumor tissues than in normal tissues (Supplementary Figure S1).