Figure 5 . Summary of the cellular and clinical effects of interferon-γ in the study of sepsis, trauma and burns. * represents findings from the present study. IFN-γ, interferon-gamma.; LPS, lipopolysaccharide; PD-L1, programmed cell death-ligand 1; Th1, T-helper cell type 1; IL-10, interleukin-10; RCT, randomized controlled trial, TNF-α, tumour necrosis factor-alpha.