PPARD and AIDS dementia complex: The analysis revealed that CXCR4, β-catenin, and PPARδ were all highly expressed in lung ADC tissues: CXCR4: > 54% (35/64 cases), β-catenin: > 53% (35/65 cases), and PPARδ: > 69% (44/63 cases) (Fig. 7a, c).