ArticleJournal of translational medicine2025
Intra and inter-organ communication through extracellular vesicles in obesity: functional role of obesesomes and steatosomes.
Article in Journal of translational medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed.
- Role of adipocytes and their derived extracellular vesicles in the progression, diagnosis and treatment of liver diseases (Review).International journal of molecular medicine · 2026Review
- Hyperglycemic Adipocyte-Derived Exosomes Cause Oxidative Stress and Lipid Peroxidation in Brain Microvascular Endothelial Cells.Current issues in molecular biology · 2026Article
- Alterations of Cerebral Extracellular Vesicle microRNA Profiling Potentially Disrupts Brain Homeostasis Following Myocardial Infarction.Biomolecules · 2026Article
- Pathophysiological Roles of Obesity-Induced Alterations in Extracellular Vesicles Derived from Adipose Tissue and Adipocytes.Current obesity reports · 2026Review
- Targeted regulation of adipose tissue macrophages from an immunometabolic perspective: a novel therapeutic approach for obesity-related metabolic disorders.Frontiers in immunology · 2026Review
- Mechanistic interplay between extracellular vesicles and neutrophil extracellular traps: unveiling the "sterile inflammation" cascade in obesity-induced diabetes progression.Frontiers in immunology · 2026Review
- How Adipocytes Orchestrate Inflammation Within Adipose Tissue?Biomolecules · 2025Review
- Design of a single particle-interferometric reflectance imaging sensor adipo-chip for obesity biomarker screening.Scientific reports · 2025Article
- Molecular mechanisms linking adipose tissue-derived small extracellular vesicles/exosomes to the development or amelioration of obesity, insulin resistance, and diabetes-related complications.European journal of medical research · 2025Review
- Systematic Review: Exosomes as Molecular Messengers in the Development of Obesity-Related Complications in Children.Current issues in molecular biology · 2025Review
- Adiposome Proteomics Uncover Molecular Signatures of Cardiometabolic Risk in Obese Individuals.Proteomes · 2025Article
- Exploring the nonlinear relationship between serum uric acid to high-density lipoprotein cholesterol ratio and obesity in older adults: a cross-sectional study.Frontiers in public health · 2025Article
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Abstract
backgroundExtracellular vesicles (EVs) represent a sophisticated mechanism of intercellular communication that is implicated in health and disease. Specifically, the role of EVs in metabolic regulation and their implications in metabolic pathologies, such as obesity and its comorbidities, remain unclear.
methodsExtracellular vesicles (EVs) were isolated through serial ultracentrifugation from murine adipocytes treated with palmitate or oleic acid, whole visceral and subcutaneous adipose tissue (obesesomes) of bariatric surgery obese donors, and human hepatocytes under steatosis (steatosomes) for functional in vitro experiments. Functional effects on inflammation and glucose and lipid metabolism of target cells (human and murine macrophages and hepatocytes) were assessed using ELISA, RT-PCR, and immunodetection. Isolated EVs from human steatotic (steatosomes) and control hepatocytes (hepatosomes) were characterized for quantity, size, and tetraspanin profile by NTA and Single Particle Interferometric Reflectance Imaging Sensor (SP-IRIS), and their protein cargo analyzed by qualitative (DDA) and quantitative (DIA-SWATH) proteomics using LC-MS/MS. Proteins identified by proteomics were validated by capturing EVs on functionalized chips by SP-IRIS. RESULTS AND
conclusionsIn this study, we investigated the role of EVs in the local communication between obese adipocytes and immune cells within adipose tissue, and the interaction of steatotic and healthy hepatocytes in the context of fatty liver disease progression. Furthermore, we analyzed obese adipose tissue-to-liver interactions through EV-obesesomes to elucidate their role in obesity-associated hepatic metabolic dysregulation. Our findings reveal that obesesomes promote inflammation and the secretion of pro-inflammatory cytokines upon interaction with macrophages, exerting a significant impact on reducing insulin resistance and altering lipid and glucose metabolism upon interaction with hepatocytes; in both cases, EVs from palmitate-loaded adipocytes and obesesomes from human visceral adipose depots demonstrated the most deleterious effect. Additionally, EVs secreted by steatotic hepatocytes (steatosomes) induced insulin resistance and altered lipid and glucose metabolism in healthy hepatocytes, suggesting their involvement in MASLD development. Proteomic analysis of steatosomes revealed that these vesicles contain liver disease-associated proteins, rendering them significant repositories of real-time biomarkers for the early stages and progression of MASLD.
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