{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,11]],"date-time":"2026-08-11T08:07:48Z","timestamp":1786435668119,"version":"build-2736575974"},"reference-count":68,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2021,1,19]],"date-time":"2021-01-19T00:00:00Z","timestamp":1611014400000},"content-version":"vor","delay-in-days":18,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"University \u201cG. d\u2019Annunzio\u201d Chieti-Pescara","award":["AT2019_Trubiani\/14327"],"award-info":[{"award-number":["AT2019_Trubiani\/14327"]}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Oxidative Medicine and Cellular Longevity"],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:p>Periodontitis is usually sustained from microorganism of oral cavity, like <jats:italic>Porphyromonas gingivalis<\/jats:italic> (<jats:italic>P. gingivalis<\/jats:italic>). Periodontal disease is an infectious disease that afflicts a large number of people. Researches are investigating on the mesenchymal stem cells (MSCs) response to inflammatory events in combination with antioxidant substances. In particular, ascorbic acid (AA) increased cell proliferation, upregulated the cells pluripotency marker expression, provide a protection from inflammation, and induced the regeneration of periodontal ligament tissue. The purpose of the present research was to investigate the effects of AA in primary culture of human periodontal ligament stem cells (hPDLSCs) exposed to <jats:italic>P. gingivalis<\/jats:italic> lipopolysaccharide (LPS\u2010G). The effect of AA on hPDLSCs exposed to LPS\u2010G was determined through the cell proliferation assay. The molecules involved in the inflammatory pathway and epigenetic regulation have been identified using immunofluorescence and Western blot analyses. miR\u2010210 level was quantified by qRT\u2010PCR, and the ROS generation was finally studied. Cells co\u2010treated with LPS\u2010G and AA showed a restoration in terms of cell proliferation. The expression of NF<jats:italic>\u03ba<\/jats:italic>B, MyD88, and p300 was upregulated in LPS\u2010G exposed cells, while the expression was attenuated in the co\u2010treatment with AA. DNMT1 expression is attenuated in the cells exposed to the inflammatory stimulus. The level of miR\u2010210 was reduced in stimulated cells, while the expression was evident in the hPDLSCs co\u2010treated with LPS\u2010G and AA. In conclusion, the AA could enhance a protective effect in <jats:italic>in vitro<\/jats:italic> periodontitis model, downregulating the inflammatory pathway and ROS generation and modulating the miR\u2010210 level.<\/jats:p>","DOI":"10.1155\/2021\/6679708","type":"journal-article","created":{"date-parts":[[2021,1,20]],"date-time":"2021-01-20T22:20:13Z","timestamp":1611181213000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":47,"title":["Ascorbic Acid: A New Player of Epigenetic Regulation in LPS\u2010<i>gingivalis<\/i> Treated Human Periodontal Ligament Stem Cells"],"prefix":"10.1155","volume":"2021","author":[{"given":"Guya D.","family":"Marconi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luigia","family":"Fonticoli","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simone","family":"Guarnieri","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcos F. 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