Supplementary Figure Legends Supplementary Figure 1 (a) Macroscopic appearance of 4 representative WT, NemoΔhepa, NemoΔhepa/TRAIL-/- and NemoΔhepa/TNFR1-/- livers at 8 weeks of age. Arrows indicate widespread lesions. (b) Macroscopic nodules were quantified in NemoΔhepa, NemoΔhepa/TRAIL-/- and NemoΔhepa/TNFR1-/- mice at 8 weeks of age and represented n=26, p<0.05). (c) Representative Oil Red-O staining in liver sections of 8 week-old WT, NemoΔhepa, NemoΔhepa/TRAIL-/- and NemoΔhepa/TNFR1-/- animals (n=4, p<0.01-0.001). (d) 500.000 primary hepatocytes from 8 week-old WT, NemoΔhepa and NemoΔhepa/TNFR1-/- were isolated and cultured. Arrows indicate dead cells. (e) MTT assay for hepatocyte survival after 8 h incubation (n=4, ***p<0.010.001). Supplementary Figure 2 (a) Hepatocyte proliferation was analyzed in 8 week-old animals by Ki-67 staining (red). (b) BrdU-positive cells per high magnification fields (n=4; 5 fields per animal; *p<0.05; **p<0.01) in livers of 8 weeks-old WT, NemoΔhepa, NemoΔhepa/TRAIL-/- and NemoΔhepa/TNFR1-/- animals. RT-PCR quantification of Cyclin A2 (c), mRNA fold induction of p21 (d), mRNA relative expression of Collagen IA1 (e) and α-SMA (f). Results are expressed as mean ± SEM (n=4, *p<0.05). Supplementary Figure 3 (a) Percentage of liver infiltrating Ly6G after FACS analysis. (b) CD11b cells-positive cells were detected and quantified by immunofluorescence of liver cryosections of WT, Nemo Δhepa, NemoΔhepa/TRAIL-/- and NemoΔhepa/TNFR1-/- animals. (c) Representative pictures and quantification of Ly6Gpositive cells in livers of 8 weeks-old WT, NemoΔhepa, NemoΔhepa/TRAIL-/- and NemoΔhepa/TNFR1-/- animals. Results are expressed as mean ± SEM (n=4, **p<0.01; ***p<0.001). (d) Liver protein extracts from 8 week-old WT, NemoΔhepa, NemoΔhepa/TRAIL-/- and NemoΔhepa/TNFR1-/- were subjected to immunoblotting using antibodies against TNFR1 and β-actin as loading control. Supplementary Figure 4 The profile expression of genes related to liver fibrosis, hepatic stellate cell activation, acute phase response, death receptor signalling and hepatic cholestasis were plotted using the Venny software (http://bioinfogp.cnb.csic.es/tools/venny/index.html). Livers of 8 weeks-old liver tissue from WT, NemoΔhepa, NemoΔhepa/TRAIL-/-, NemoΔhepa/TNFR1-/- and NemoΔhepa/TRAIL-//TNFR1-/- were used (n=3 livers per group). Representative diagram of the overlap of top up-regulated (a) or down-regulated (b) genes normalized to WT mice. Quantitative RT-PCR analysis of the mRNA levels of DR6 (c) and SCD2 (d), respectively, in livers of 8 week-old WT, NemoΔhepa, NemoΔhepa/TRAIL-/- and NemoΔhepa/TNFR1-/-. Values are mean ± SEM from at least 3 mice per group (*p<0.05). Supplementary Figure 5 Nodules greater than 5 mm were quantified in livers of TRAIL-/-/TNFR1-/-, NemoΔhepa, NemoΔhepa/TRAIL-/-, NemoΔhepa/TNFR1-/- and NemoΔhepa/TRAIL-/-/TNFR1-/- mice at the age of 52 weeks. Supplementary Figure 6 (a) 4-6 weeks-old NemoΔhepa mice were reconstituted with bone marrow from WT and TNFR1-/- mice. 52-weeks after transplantation mice were sacrificed and liver samples collected. Macroscopic appearance of livers and representative H/E staining is shown at 20x magnification. (b) Serum AP levels of bone marrow transplanted mice were determined 1 year after transplantation. (c) Nodules greater than 5 mm were quantified in livers of mice, 52 weeks after BMT. Results are expressed as mean; error bars indicate SEM (n=6-8, p<0.01-0.001).