CD274 and metabolic dysfunction-associated steatotic liver disease: As shown in Figures 6(a) and 6(b), a large amount of lipid accumulated in hepatocytes, an accumulation of CD8 + T cells in NAFLD (Figures 6(c) and 6(d)), and increased expression of PD-L1 expression, hepatocytes apoptosis, and the level of ALT and AST were observed in the NAFLD model (Figures 6(e)–6(g)).