FAHD1 and neoplasm: Functional stratification of tumor epithelial cells into FAHD1+epi and FAHD1−epi subpopulations demonstrated that FAHD1+epi cells exhibited accelerated proliferative capacity with elevated S/G2M phase fractions, enhanced stem-like properties reflected by CytoTRACE scores, and augmented pyruvate metabolic activity (Figures 5G–5J).