Extracellular vesicles (EVs) are lipid bilayer-enclosed particles carrying bioactive cargo, including nucleic acids, proteins, and lipids, facilitating intercellular and interorgan communication. In addition to traditional mediators such as hormones, metabolites, and cytokines, increasing evidence suggests that EVs are key modulators in various physiological and pathological processes, particularly influencing metabolic homeostasis and contributing to the progression of cardiometabolic diseases. This review provides an overview of the most recent insights into EV-mediated mechanisms involved in the pathogenesis of obesity, insulin resistance, diabetes mellitus, steatotic liver disease, atherosclerosis, and cardiovascular disease. EVs play a critical role in modulating insulin sensitivity, glucose homeostasis, systemic inflammation, and vascular health by transferring functional molecules to target cells. Understanding the EV-mediated network offers potential for identifying novel biomarkers and therapeutic targets, providing opportunities for EV-based interventions in cardiometabolic disease management. Although many challenges remain, this evolving field highlights the need for further research into EV biology and its translational applications in cardiovascular and metabolic health.
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Postbiotics in Functional Foods: Microbial Derivatives Shaping Health, Immunity and Next‐Generation Nutrition Alice Njolke Mafe, Javad Sharifi‐Rad, Daniela Calina, Ayobami Joshua Ogunyemi, Abiola O. Tubi Food Frontiers.2026;[Epub] CrossRef
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Extracellular Vesicles: Biology, Intercellular Communication and Therapeutic Potential in Diabetes Swayam Prakash Srivastava, Lydia Herrmann, Eden Ozkan, Abhiram Kunamneni, Vinamra Swaroop, Geetika Nehra, Rohit Srivastava, Pratima Tripathi, Ken Inoki, Julie E. Goodwin Advanced Therapeutics.2026;[Epub] CrossRef
Extracellular vesicles in cardiovascular disease: Biomarkers, therapeutic applications, and drug delivery strategies Qamar Abuhassan, Amirali Salajegheh, Faris Anad Muhammad, Ali Fawzi Al-Hussainy, Tushar B. Gajjar, Malathi Hanumanthayya, Sandeep Kumar Shukla, Rajashree Panigrahi, Neeraj Bainsal, Djamila Polatova, Hayder Naji Sameer, Rasim M. Salih, Mohaned Adil Clinica Chimica Acta.2026; 588: 120972. CrossRef
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Extracellular Vesicles in Obesity: From Pathophysiological Mediators to Therapeutic Tools Nikola Pavlović, Petar Todorović, Mirko Maglica, Andrea Kopilaš, Roko Šantić, Marko Kumrić, Marino Lukenda, Joško Božić International Journal of Molecular Sciences.2026; 27(7): 3137. CrossRef
Urinary extracellular vesicle miRNA signature reflects pancreatic islet stress in type 2 diabetes Md. Zubbair Malik, Mohammed Dashti, Anwar Mohammad, Mohamed Al‐Sayegh, Mohammed Al‐Onaizi, Rasheeba Nizam, Khadija M Dashti, Mohamed Abu‐Farha, Jehad Abubaker, Fahd Al‐Mulla, Hamad Ali Journal of Diabetes Investigation.2026; 17(7): 1094. CrossRef
Impact of Fatty Liver Index on Cardiovascular Disease and Mortality across Alcohol Consumption Levels in Young Adults Byung-Hun Han, Joonyub Lee, Hun-Sung Kim, Jae-Hyoung Cho, Kyungdo Han, Seung-Hwan Lee Endocrinology and Metabolism.2026;[Epub] CrossRef
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Metabolic dysfunction–associated steatotic liver disease and cardiovascular disease: Emerging insights into the liver–heart axis Seung‐Hwan Lee Journal of Diabetes Investigation.2026; 17(7): 1091. CrossRef
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Mechanistic interplay between extracellular vesicles and neutrophil extracellular traps: unveiling the “sterile inflammation” cascade in obesity-induced diabetes progression He Gao, Xin-xin Luo, Yu Fu, Yi Chen, Shun-yu Ning, Xue Han, Li Wang, Qing-feng Wang Frontiers in Immunology.2026;[Epub] CrossRef
Association between dyslipidemia and elevated liver enzymes: A cross-sectional study from the PERSIAN Guilan cohort study Milad Shahdkar, Mahdi Orang Goorabzarmakhi, Mahdi Shafizadeh, Farahnaz Joukar, Saman Maroufizadeh, Niloofar Faraji, Tahereh Zeinali, Fariborz Mansour-Ghanaei Endocrine and Metabolic Science.2025; 19: 100272. CrossRef
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Molecular mechanisms linking adipose tissue-derived small extracellular vesicles/exosomes to the development or amelioration of obesity, insulin resistance, and diabetes-related complications Linfeng Chen, Fatemeh Amraee, Sahar Sadegh-Nejadi, Mostafa Saberian, Seyed Arsalan Ghahari, Xiaolei Miao, Giuseppe Lisco, Reza Afrisham European Journal of Medical Research.2025;[Epub] CrossRef
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Background Serotonin (5-hydroxytryptamine [5-HT]) is a monoamine neurotransmitter that has various functions in central and peripheral tissues. While 5-HT is known to regulate various biological processes in liver, direct role of 5-HT and its receptors, especially 5-HT receptor 2A (HTR2A) and HTR2B, in development and progression of alcoholic liver disease (ALD) in vivo is not well understood.
Methods Blood 5-HT level was measured from both human ALD patients and ethanol (EtOH) diet-fed mouse models. Gut-specific tryptophan hydroxylase 1 (Tph1) knockout mice, liver-specific Htr2a knockout mice, and liver-specific Htr2b knockout mice were fed with EtOH diet. Then we evaluated liver damage, hepatic steatosis, endoplasmic reticulum (ER) stress, and inflammation.
Results Blood 5-HT concentrations are increased in both humans and mice with ALD. Both gut-specific Tph1 knockout and liver- specific Htr2a knockout mice are resistant to steatosis by down-regulating lipogenic pathways in liver of chronic EtOH diet-fed mice. Moreover, genetic inhibition of both gut-derived serotonin (GDS) synthesis and hepatic HTR2A signaling prevents ER stress in liver of chronic EtOH diet-fed mice. Additionally, we found that ablation of HTR2A signaling protects against disease progression by attenuating liver injury and inflammation in chronic plus binge EtOH diet-fed mice. Also, inhibiting HTR2A signaling ameliorates alcohol-induced liver injury and ER stress in an acute EtOH diet-fed mice model.
Conclusion GDS directly regulates lipogenesis and ER stress via signaling through hepatic HTR2A in the context of ALD. Inhibiting HTR2A signaling protects against alcohol-induced steatosis, liver injury and disease progression in various ALD mouse models and may also provide a novel therapeutic strategy for ALD.
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