Entry
Name
Non-alcoholic fatty liver disease - Odobenus rosmarus divergens (Pacific walrus)
Description
Non-alcoholic fatty liver disease (NAFLD) represents a spectrum ranging from simple steatosis to more severe steatohepatitis with hepatic inflammation and fibrosis, known as nonalcoholic steatohepatitis (NASH). NASH may further lead to cirrhosis and hepatocellular carcinoma (HCC). This map shows a stage-dependent progression of NAFLD. In the first stage of NAFLD, excess lipid accumulation has been demonstrated. The main cause is the induction of insulin resistance, which leads to a defect in insulin suppression of free fatty acids (FAAs) disposal. In addition, two transcription factors, SREBP-1c and PPAR-alpha, activate key enzymes of lipogenesis and increase the synthesis of FAAs in liver. In the second stage, as a consequence of the progression to NASH, the production of reactive oxygen species (ROS) is enhanced due to oxidation stress through mitochondrial beta-oxidation of fatty acids and endoplamic reticulum (ER) stress, leading to lipid peroxidation. The lipid peroxidation can further cause the production of cytokines (Fas ligand, TNF-alpha, IL-8 and TGF), promoting cell death, inflammation and fibrosis. The activation of JNK, which is induced by ER stress, TNF-alpha and FAAs, is also associated with NAFLD progression. Increased JNK promotes cytokine production and initiation of HCC.
Class
Human Diseases; Endocrine and metabolic disease
BRITE hierarchy
Pathway map
oro04932 Non-alcoholic fatty liver disease
Ortholog table
Organism
Odobenus rosmarus divergens (Pacific walrus) [GN:
oro ]
Gene
101386839 TNFRSF1A; tumor necrosis factor receptor superfamily member 1A [KO:K03158 ]
101371488 NFKB1; nuclear factor NF-kappa-B p105 subunit isoform X1 [KO:K02580 ]
101370689 PIK3CA; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit alpha isoform [KO:K00922 ] [EC:2.7.1.153 ]
101385241 PIK3CB; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit beta isoform isoform X1 [KO:K00922 ] [EC:2.7.1.153 ]
101385267 PIK3CD; phosphatidylinositol 4,5-bisphosphate 3-kinase catalytic subunit delta isoform [KO:K00922 ] [EC:2.7.1.153 ]
101374787 PIK3R3; phosphatidylinositol 3-kinase regulatory subunit gamma [KO:K02649 ]
101370100 PIK3R1; phosphatidylinositol 3-kinase regulatory subunit alpha isoform X1 [KO:K02649 ]
101371800 PIK3R2; phosphatidylinositol 3-kinase regulatory subunit beta [KO:K02649 ]
101373569 SREBF1; sterol regulatory element-binding protein 1 isoform X1 [KO:K07197 ]
101370307 MLXIPL; carbohydrate-responsive element-binding protein isoform X1 [KO:K09113 ]
101372153 PRKAB1; 5'-AMP-activated protein kinase subunit beta-1 [KO:K07199 ]
101383756 PRKAB2; 5'-AMP-activated protein kinase subunit beta-2 isoform X1 [KO:K07199 ]
101374600 PRKAG3; 5'-AMP-activated protein kinase subunit gamma-3 [KO:K07200 ]
101364224 PRKAG2; 5'-AMP-activated protein kinase subunit gamma-2 isoform X2 [KO:K07200 ]
101369816 PRKAG1; 5'-AMP-activated protein kinase subunit gamma-1 isoform X1 [KO:K07200 ]
101386061 PPARA; peroxisome proliferator-activated receptor alpha [KO:K07294 ]
101370284 PPARG; peroxisome proliferator-activated receptor gamma isoform X1 [KO:K08530 ]
101364638 CDC42; cell division control protein 42 homolog isoform X1 [KO:K04393 ]
101378519 RAC1; ras-related C3 botulinum toxin substrate 1 isoform X1 [KO:K04392 ]
101366544 LOW QUALITY PROTEIN: ras-related C3 botulinum toxin substrate 1-like [KO:K04392 ]
101381319 FASLG; tumor necrosis factor ligand superfamily member 6 isoform X1 [KO:K04389 ]
101363609 EIF2S1; eukaryotic translation initiation factor 2 subunit 1 [KO:K03237 ]
101368122 ATF4; cyclic AMP-dependent transcription factor ATF-4 [KO:K04374 ]
101369551 FAS; tumor necrosis factor receptor superfamily member 6 [KO:K04390 ]
101386882 LOW QUALITY PROTEIN: cytochrome c, testis-specific-like [KO:K08738 ]
101378216 NDUFV1; NADH dehydrogenase [ubiquinone] flavoprotein 1, mitochondrial isoform X1 [KO:K03942 ] [EC:7.1.1.2 ]
101363344 NDUFV3; NADH dehydrogenase [ubiquinone] flavoprotein 3, mitochondrial isoform X1 [KO:K03944 ]
101385824 NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1-like [KO:K03945 ]
101365928 NDUFA1; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1 [KO:K03945 ]
101369899 NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 1-like [KO:K03945 ]
101376415 NDUFA2; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 2 [KO:K03946 ]
105758207 LOW QUALITY PROTEIN: NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3-like [KO:K03947 ]
101371724 NDUFA3; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 3 [KO:K03947 ]
101377310 NDUFA4L2; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 4-like 2 isoform X2 [KO:K03948 ]
101364725 NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5 isoform X1 [KO:K03949 ]
101364889 NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5-like isoform X1 [KO:K03949 ]
101363335 NDUFA5; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5 isoform X1 [KO:K03949 ]
101377235 NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5-like isoform X1 [KO:K03949 ]
101380078 NDUFA6; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 6 isoform X1 [KO:K03950 ]
101378881 NDUFA7; LOW QUALITY PROTEIN: NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 7 [KO:K03951 ]
101368566 NDUFA8; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 8 [KO:K03952 ]
101376420 NDUFA9; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 9, mitochondrial [KO:K03953 ]
101386581 NDUFA10; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 10, mitochondrial [KO:K03954 ]
101365566 NDUFA11; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 11 [KO:K03956 ]
101370700 NDUFA12; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 12 isoform X1 [KO:K11352 ]
101362452 NDUFA13; NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 13 [KO:K11353 ]
101371446 NDUFB1; LOW QUALITY PROTEIN: NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 1 [KO:K03957 ]
105757340 NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 1 [KO:K03957 ]
101376585 NDUFB2; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 2, mitochondrial [KO:K03958 ]
101367307 NDUFB3; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 3 [KO:K03959 ]
101368539 NDUFB4; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 4 [KO:K03960 ]
101367535 NDUFB5; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 5, mitochondrial isoform X3 [KO:K03961 ]
101384656 NDUFB6; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 6 isoform X1 [KO:K03962 ]
101386359 NDUFB7; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 7 [KO:K03963 ]
101366380 NDUFB8; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 8, mitochondrial isoform X1 [KO:K03964 ]
101385827 NDUFB9; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 9 [KO:K03965 ]
101369135 NDUFB10; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 10 [KO:K03966 ]
101368895 NDUFB11; NADH dehydrogenase [ubiquinone] 1 beta subcomplex subunit 11, mitochondrial [KO:K11351 ]
101369334 NDUFS1; NADH-ubiquinone oxidoreductase 75 kDa subunit, mitochondrial isoform X1 [KO:K03934 ] [EC:7.1.1.2 ]
101367772 NDUFS2; NADH dehydrogenase [ubiquinone] iron-sulfur protein 2, mitochondrial isoform X1 [KO:K03935 ] [EC:7.1.1.2 ]
101372668 NDUFS3; NADH dehydrogenase [ubiquinone] iron-sulfur protein 3, mitochondrial [KO:K03936 ] [EC:7.1.1.2 ]
101378518 NDUFS4; NADH dehydrogenase [ubiquinone] iron-sulfur protein 4, mitochondrial [KO:K03937 ]
101368628 NDUFS5; NADH dehydrogenase [ubiquinone] iron-sulfur protein 5 [KO:K03938 ]
101362780 NDUFS6; NADH dehydrogenase [ubiquinone] iron-sulfur protein 6, mitochondrial [KO:K03939 ]
101373411 NDUFS7; NADH dehydrogenase [ubiquinone] iron-sulfur protein 7, mitochondrial isoform X1 [KO:K03940 ] [EC:7.1.1.2 ]
101376384 NDUFS8; NADH dehydrogenase [ubiquinone] iron-sulfur protein 8, mitochondrial [KO:K03941 ] [EC:7.1.1.2 ]
101367374 NDUFC1; NADH dehydrogenase [ubiquinone] 1 subunit C1, mitochondrial [KO:K03967 ]
101382073 SDHA; succinate dehydrogenase [ubiquinone] flavoprotein subunit, mitochondrial isoform X3 [KO:K00234 ] [EC:1.3.5.1 ]
101380075 SDHB; succinate dehydrogenase [ubiquinone] iron-sulfur subunit, mitochondrial [KO:K00235 ] [EC:1.3.5.1 ]
101372902 succinate dehydrogenase cytochrome b560 subunit, mitochondrial-like [KO:K00236 ]
101369754 SDHC; succinate dehydrogenase cytochrome b560 subunit, mitochondrial isoform X1 [KO:K00236 ]
101369783 SDHD; succinate dehydrogenase [ubiquinone] cytochrome b small subunit, mitochondrial [KO:K00237 ]
101374005 cytochrome b-c1 complex subunit 1, mitochondrial isoform X3 [KO:K00414 ]
101372183 cytochrome b-c1 complex subunit 6, mitochondrial isoform X1 [KO:K00416 ]
101385433 cytochrome c oxidase subunit 4 isoform 1, mitochondrial [KO:K02263 ]
101380146 cytochrome c oxidase subunit 4 isoform 2, mitochondrial [KO:K02263 ]
101370311 cytochrome c oxidase subunit 7A-related protein, mitochondrial [KO:K02270 ]
101377905 cytochrome c oxidase subunit 7B, mitochondrial isoform X1 [KO:K02271 ]
Compound
Reference
Authors
Naik A, Kosir R, Rozman D
Title
Genomic aspects of NAFLD pathogenesis.
Journal
Reference
Authors
Malaguarnera M, Di Rosa M, Nicoletti F, Malaguarnera L
Title
Molecular mechanisms involved in NAFLD progression.
Journal
Reference
Authors
Seki E, Brenner DA, Karin M
Title
A liver full of JNK: signaling in regulation of cell function and disease pathogenesis, and clinical approaches.
Journal
Reference
Authors
Tilg H, Moschen AR
Title
Evolution of inflammation in nonalcoholic fatty liver disease: the multiple parallel hits hypothesis.
Journal
Reference
Authors
Larter CZ, Farrell GC
Title
Insulin resistance, adiponectin, cytokines in NASH: Which is the best target to treat?
Journal
Reference
Authors
Farrell GC, van Rooyen D, Gan L, Chitturi S
Title
NASH is an Inflammatory Disorder: Pathogenic, Prognostic and Therapeutic Implications.
Journal
Reference
Authors
Shapiro H, Tehilla M, Attal-Singer J, Bruck R, Luzzatti R, Singer P
Title
The therapeutic potential of long-chain omega-3 fatty acids in nonalcoholic fatty liver disease.
Journal
Reference
Authors
Hotamisligil GS
Title
Endoplasmic reticulum stress and the inflammatory basis of metabolic disease.
Journal
Reference
Authors
Parekh S, Anania FA
Title
Abnormal lipid and glucose metabolism in obesity: implications for nonalcoholic fatty liver disease.
Journal
Reference
Authors
Schattenberg JM, Singh R, Wang Y, Lefkowitch JH, Rigoli RM, Scherer PE, Czaja MJ
Title
JNK1 but not JNK2 promotes the development of steatohepatitis in mice.
Journal
Reference
Authors
Leung TM, Nieto N
Title
CYP2E1 and oxidant stress in alcoholic and non-alcoholic fatty liver disease.
Journal
Reference
Authors
Zafrani ES
Title
Non-alcoholic fatty liver disease: an emerging pathological spectrum.
Journal
Reference
Authors
Feldstein AE, Canbay A, Angulo P, Taniai M, Burgart LJ, Lindor KD, Gores GJ
Title
Hepatocyte apoptosis and fas expression are prominent features of human nonalcoholic steatohepatitis.
Journal
Reference
Authors
Begriche K, Igoudjil A, Pessayre D, Fromenty B
Title
Mitochondrial dysfunction in NASH: causes, consequences and possible means to prevent it.
Journal
Reference
Authors
Leonarduzzi G, Scavazza A, Biasi F, Chiarpotto E, Camandola S, Vogel S, Dargel R, Poli G
Title
The lipid peroxidation end product 4-hydroxy-2,3-nonenal up-regulates transforming growth factor beta1 expression in the macrophage lineage: a link between oxidative injury and fibrosclerosis.
Journal
Reference
Authors
Malhi H, Kaufman RJ
Title
Endoplasmic reticulum stress in liver disease.
Journal
Reference
Authors
Mantena SK, King AL, Andringa KK, Eccleston HB, Bailey SM
Title
Mitochondrial dysfunction and oxidative stress in the pathogenesis of alcohol- and obesity-induced fatty liver diseases.
Journal
Reference
Authors
Serviddio G, Sastre J, Bellanti F, Vina J, Vendemiale G, Altomare E
Title
Mitochondrial involvement in non-alcoholic steatohepatitis.
Journal
Reference
Authors
Begriche K, Massart J, Robin MA, Bonnet F, Fromenty B
Title
Mitochondrial adaptations and dysfunctions in nonalcoholic fatty liver disease.
Journal
Related pathway
oro04141 Protein processing in endoplasmic reticulum
oro04920 Adipocytokine signaling pathway
KO pathway
LinkDB
All DBs