Changes in mitochondrial lipid composition in different disease models of MASLD, ARLD, and HCC
Lipids | Mitochondrial changes | Disease outcomes | Disease model | |
---|---|---|---|---|
Fatty acids | ↑ mitochondrial fatty acid β-oxidation at early stages | ARLD [66]MASLD [67] | Mice | |
↓ mitochondrial fatty acid β-oxidation at advanced stages | ARLD [68–70]MASH [67, 68, 71] | Mice | ||
↓ nicotinamide adenine dinucleotide (NAD+/NADH) levels in mitochondria | ARLD [69]MASLD [68] | |||
↑ carnitine palmitoyltransferase-1 in mitochondrial membrane | MASLD [67] | Mice | ||
↑ lipid peroxidation in mitochondria | ARLD [72]MASLD [71]MASH [71] | RatHepG2 | ||
↓ ETC coupling (CI, CIV) | MASLD [71]MASH [67, 71] | Mice | ||
↓ mitophagy mediated by NLRP3 activation and AMPK inhibition | MASLD [73, 74] | MiceCells | ||
↑ mitochondrial attachment to lipid droplets because of diacylglycerol-O-acyltransferase-2 increased activity | MASLD [67] | |||
↑ lipid peroxidation in mitochondria | ARLD [72]MASLD [71]MASH [71] | RatHepG2 | ||
↓ mesh due to altered mitochondrial membrane composition | ARLD [75, 76]MASLD [68] | Rat | ||
Glyceride | Diacylglycerides | ↑ pyroptosis via NLRP3 activation | MASH [77] | MiceHuman |
Triglycerides | ↑ mitochondrial oxidative flux | MASLD [68] | ||
↓ membrane fluidity if the cholesterol/triglycerides ratio is altered | ARLD [76] | Rat | ||
↑ tumor anabolism | HCC [78] | |||
Phospholipid | Cardiolipin | ↑ NLRP3 and apoptosis by CL peroxidation and redistribution from IMM to OMM | ARLD [69, 75, 76]MASLD [68] | Rat |
↓ ETC complex activity (CI, CIII, CIV, and ADP/ATP carrier) | ARLD [69]MASLD [67, 71, 79] | Rat | ||
↑ mPTP opening and cytochrome c release by Bcl-2 family proteins interaction (Bax) | ARLD [80]MASLD [67, 71]MASH [80] | Rat | ||
Phosphatidylcholine | ↓ mitochondrial ROS production by CYP2E1 inhibition | ARLD [72] | ||
↑apoptosis due to changes in mitochondrial phosphatidylcholine redox state and through JNK activation | ARLD [76]MASLD [68, 79]MASH [68, 77] | MiceRatHuman | ||
Phosphatidylethanolamine | ↓ membrane fluidity | ARLD [76] | ||
Sphingolipid | Ceramide | ↑mitochondrial ROS generation and apoptosis by TNFα/Fas signaling | ARLD [70, 75, 81]MASLD [68, 73]MASH [81] | PMH |
↓ ETC (CIII) | ARLD [70]MASH [67] | Mice | ||
↓ mitochondrial fatty acid β-oxidation | MASLD [68]MASH [67] | Mice | ||
↓ mitophagy through NLRP3 activation | MASLD [73] | |||
↓ mitochondrial membrane permeabilization | HCC [82] | Cell line | ||
↑ mitochondrial depolarization | MASLD [82] | |||
Ganglioside | ↑ ETC (CIII) | MASH [67] | ||
Sterol | Cholesterol | ↑ mitochondrial ROS production | ARLD [75, 83]MASH [83] | CellsHuman |
↓ ETC (CI) | MASLD [84]ARLD [69]HCC [83] | |||
↑survival by a defective assembly of the apoptosome | HCC [80, 83] | Rat | ||
↓ mitochondrial membrane permeabilization | ARLD [75, 76, 83]MASLD [84]MASH [67, 83, 85]HCC [80, 83] | HepG2MiceRatsMonkeysHuman | ||
↓ mitochondrial protein transport (SLC25A11) by TNFα and Fas-induced apoptosis | ARLD [69, 75, 80, 83, 86]MASH [80, 83, 85, 87] | PMHMiceHuman | ||
↑ mitochondrial fusion (megamitochondria) | ARLD [69] | Mice | ||
↑ mPTP by JNK-dependent proinflammatory pathway | ARLD [75]MASH [68] | PMH | ||
↑ alternative (acidic) bile synthesis pathway | MASLD [84]MASH [88, 89]HCC [88] | PRHMice | ||
Lipid droplets | ↓ motility and fusion rates of peridroplets mitochondria | MASLD [67] | ||
↑ megamitochondria through fusion-fission rates alteration | ARLD [66] | Mice | ||
↑ function of cytosolic mitochondria | MASLD [90]HCC [90] |
MASLD: metabolic dysfunction-associated steatotic liver disease; ARLD: alcohol-related liver disease; HCC: hepatocellular carcinoma; MASH: metabolic-associated steatohepatitis; ETC: electron transport chain; NLRP3: NLR family pyrin domain containing 3; IMM: inner mitochondrial membrane; OMM: outer mitochondrial membrane; mPTP: mitochondrial permeability transition pore; ROS: reactive oxygen species; JNK: c-Jun N-terminal kinase; TNFα: tumor necrosis factor-alpha
Cartoons in Figures were created with BioRender.com. Carmen Garcia-Ruiz and José C. Fernández-Checa acknowledge the support of the Spanish National Research Council’s Cancer Hub.
LF and LCdlR: Conceptualization, Writing—original draft, Writing—review & editing. JCFC and CGR: Conceptualization, Writing—original draft, Writing—review & editing, Funding acquisition, Supervision. All authors have read and agreed to the published version of the manuscript.
Prof. José C. Fernández-Checa is the Editor-in-Chief of Exploration of Digestive Diseases, and Prof. Carmen Garcia-Ruiz is a member of the Editorial Board and a Guest Editor of Exploration of Digestive Diseases. However, neither was involved in the decision-making or review process for this manuscript.
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We are grateful for the support from grants [PID2020-115055RB-I00], [PID2022-1429560B-I00] and [2023AEP068] from Plan Nacional de I+D funded by the Agencia Estatal de Investigación (AEI) and the Fondo Europeo de Desarrollo Regional (FEDER) and from the CIBEREHD; as well as support from AGAUR of the Generalitat de Catalunya [SGR-2021-00491], European Cooperation in Science & Technology (COST) [ACTION CA17112], Prospective European Drug-Induced Liver Injury Network, the 2018-102799-T “Enfermedades Metabólicas y Cancer” from the Red Nacional of the Spanish Health Ministry and the COVID grant from the Spanish Association for the Study of the Liver (AEEH). In addition, this project has received funding from the European Horizon’s research and innovation program HORIZON-HLTH-2022-STAYHLTH-02 under agreement No [101095679]. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
© The Author(s) 2024.