ArticleFrontiers in nutrition2021
Differential Effects of Oleic and Palmitic Acids on Lipid Droplet-Mitochondria Interaction in the Hepatic Cell Line HepG2.
Article in Frontiers in nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.
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Who cites it
67 citing papers in PubMed, 102 citations in OpenAlex.
- Review of in vitro approaches for assessing the toxicity of chemical stressors across diverse physiological systems.Toxicological sciences : an official journal of the Society of Toxicology · 2026Review
- Sequential Fractionation ofFoods (Basel, Switzerland) · 2026Article
- Optical photothermal infrared imaging of fatty acid esterification in the ER of living cells.Science advances · 2026Article
- Functional genomic analysis reveals HAVCR1 as the key regulator of 5q33.3 locus linked to hyperlipidemia.HGG advances · 2026Article
- Fatty acid regulation and phosphatidylethanolamine biosynthesis are important for hepatitis E virus replication.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Label-free 4D holotomography with depth-adaptive segmentation for quantitative analysis of lipid droplet dynamics in hepatic organoids.Biophotonics discovery · 2026Article
- Physiologically relevant media are associated with overlapping metabolic responses in primary human hepatocytes and Huh7 cells.Physiological reports · 2026Article
- MHY5456, an FXR Agonist, Ameliorates Hepatic Steatosis and Fibrosis in a Mouse Model of MASLD.Biomolecules & therapeutics · 2026Article
- Palmitate and oleate differentially regulate oxidative stress and drug resistance markers in steatotic HepG2 cells.Molecular biology reports · 2026Article
- The HepG2 Cell Line as a Model for Studying Metabolic Dysfunction-Associated Steatotic Liver Disease.International journal of molecular sciences · 2026Review
- Disrupted lipid homeostasis as a pathogenic mechanism in ABCA7-associated Alzheimer's disease risk.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Optical photothermal infrared imaging of fatty acid esterification in the ER of living cells.bioRxiv : the preprint server for biology · 2026Article
- Multiscale Interactome-Guided Prioritization of Candidate Herbs and Active Compounds for Hepatic Cirrhosis Using a Biased Random Walk Algorithm.Current issues in molecular biology · 2026Article
- Paulobutalipin, a Lipid Accumulation Inhibitor from aJournal of natural products · 2026Article
- Metabolomic profiling of HepG2/C3A liver-on-chip model exposed to oleic acid, palmitic acid and oleic/palmitic acids mixture.NAM journal · 2026Article
- MiR-199b-5p inhibition improves inflammation and oxidative stress damage in OA-induced non-alcoholic fatty liver disease through targeting SIRT1.BMC gastroenterology · 2025Article
- Mitochondrial dysfunction in hepatocellular carcinoma: from metabolism to targeted therapies.Molecular and cellular biochemistry · 2025Review
- Effect of Mulberry Leaf and Its Active Component, 1-Deoxynojirimycin, on Palmitic Acid-Induced Lipid Accumulation in HepG2 Cells.Biomedicines · 2025Article
- Morphological alterations of peridroplet mitochondria in human liver biopsy.Scientific reports · 2025Article
- Identification of New CD36 Antagonists by Structure-Based Virtual Screening.Chemical biology & drug design · 2025Article
7 more citing papers are in PubMed but not listed here.
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6 authors at 2 institutions in 1 country.
Funding
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Abstract
Fatty acid overload, either of the saturated palmitic acid (PA) or the unsaturated oleic acid (OA), causes triglyceride accumulation into specialized organelles termed lipid droplets (LD). However, only PA overload leads to liver damage mediated by mitochondrial dysfunction. Whether these divergent outcomes stem from differential effects of PA and OA on LD and mitochondria joint dynamics remains to be uncovered. Here, we contrast how both fatty acids impact the morphology and interaction between both organelles and mitochondrial bioenergetics in HepG2 cells. Using confocal microscopy, we showed that short-term (2-24 h) OA overload promotes more and bigger LD accumulation than PA. Oxygen polarography indicated that both treatments stimulated mitochondrial respiration; however, OA favored an overall build-up of the mitochondrial potential, and PA evoked mitochondrial fragmentation, concomitant with an ATP-oriented metabolism. Even though PA-induced a lesser increase in LD-mitochondria proximity than OA, those LD associated with highly active mitochondria suggest that they interact mainly to fuel fatty acid oxidation and ATP synthesis (that is, metabolically "active" LD). On the contrary, OA overload seemingly stimulated LD-mitochondria interaction mainly for LD growth (thus metabolically "passive" LDs). In sum, these differences point out that OA readily accumulates in LD, likely reducing their toxicity, while PA preferably stimulates mitochondrial oxidative metabolism, which may contribute to liver damage progression.
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