LMTK3 and neoplasm: MAP3K1, PPM1D, LMTK3, and TGFB1 levels were significantly elevated across all tumor subtypes, with the highest concentrations consistently observed in TNBC (e.g., TGFB1: 544.92 ± 29.81 pg/mL; MAP3K1: 15.44 ± 0.56 ng/mL).