TNF and alcoholic liver diseases: TNF-α: tumor necrosis factor-alpha; IL: interleukin; MCP1: monocyte chemoattractant protein-1; Hmgb1: high mobility group box 1; NF-κB: nuclear factor kappa B; GRO-α: growth-related oncogene-alpha; HCV: hepatitis C virus; LPS: lipopolysaccharide; ALD: alcoholic liver disease; DC: dendritic cell