{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T00:34:59Z","timestamp":1791938099202,"version":"4.3.4"},"reference-count":92,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T00:00:00Z","timestamp":1776038400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002467","name":"Dankook University","doi-asserted-by":"publisher","award":["R-2023-00599"],"award-info":[{"award-number":["R-2023-00599"]}],"id":[{"id":"10.13039\/501100002467","id-type":"DOI","asserted-by":"publisher"}]},{"award":["R-2023-00599"],"award-info":[{"award-number":["R-2023-00599"]}],"id":[{"id":"https:\/\/ror.org\/058pdbn81","id-type":"ROR","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pathogens"],"abstract":"<jats:p>Periodontal disease represents a major global health burden, beginning with gingivitis and progressing to periodontitis, which causes connective tissue breakdown, alveolar bone resorption, and eventual tooth loss. Beyond local pathology, periodontitis is a chronic inflammatory condition with systemic associations, including cardiovascular disease, diabetes, and metabolic disorders. Mesenchymal stem cells (MSCs) and their extracellular vesicles (EVs) have emerged as promising candidates for periodontal regeneration. This review aimed to map the current evidence on MSC-derived EVs (MSC-EVs) in periodontal regeneration, focusing on their mechanisms of action, therapeutic potential, and translational challenges. A comprehensive literature search was conducted across a major biomedical database (PubMed) to identify preclinical and clinical studies investigating MSC-EVs in the context of periodontitis. Data were charted on EV cargo composition, biological functions, regenerative outcomes, and reported limitations. Evidence indicates that MSC-EVs encapsulate bioactive molecules\u2014including antimicrobial peptides, proteins, lipids, and microRNAs\u2014that modulate immune responses, suppress pro-inflammatory signaling, and promote angiogenesis and tissue repair. In periodontal models, MSC-EVs attenuate osteoclast activity, enhance fibroblast proliferation, and stimulate extracellular matrix remodeling, supporting regeneration of periodontal ligament and alveolar bone. Exosome-based approaches demonstrate advantages such as reduced immunogenicity, improved safety, and feasibility for storage and standardization. However, most findings remain preclinical, with limited human data available. To bridge the translational gap, well-designed clinical trials are needed to confirm efficacy and safety while addressing regulatory challenges, GMP standards, and outcome measures. Harnessing their regenerative capacity while mitigating side effects may guide precision-targeted therapies, and continued mechanistic studies with standardized production will be key to advancing MSC-EVs into clinical practice.<\/jats:p>","DOI":"10.3390\/pathogens15040420","type":"journal-article","created":{"date-parts":[[2026,4,13]],"date-time":"2026-04-13T13:12:26Z","timestamp":1776085946000},"page":"420","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["The Promise and Challenges of Mesenchymal Stem Cell-Derived Extracellular Vesicles in Periodontal Disease"],"prefix":"10.3390","volume":"15","author":[{"given":"Jonghoe","family":"Byun","sequence":"first","affiliation":[{"name":"Department of Biological Sciences\/Department of Molecular Biology, Institute of Nanosensor and Biotechnology, Dankook University, Dandaero 119, Dongnam-gu, Cheonan-si 31116, Chungnam, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,4,13]]},"reference":[{"key":"ref_1","first-page":"72","article-title":"Prevalence of periodontal disease, its association with systemic diseases and prevention","volume":"11","author":"Nazir","year":"2017","journal-title":"Int. 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