{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,27]],"date-time":"2026-05-27T21:12:23Z","timestamp":1779916343911,"version":"3.53.1"},"reference-count":44,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"6","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["ATVB"],"published-print":{"date-parts":[[2018,6]]},"abstract":"<jats:sec>\n            <jats:title>Objective\u2014<\/jats:title>\n            <jats:p>Recently, we have demonstrated that acute glucosamine-induced augmentation of protein O-linked \u03b2-N-acetylglucosamine (O-GlcNAc) levels inhibits inflammation in isolated vascular smooth muscle cells and neointimal formation in a rat model of carotid injury by interfering with NF-\u03baB (nuclear factor-\u03baB) signaling. However, the specific molecular target for O-GlcNAcylation that is responsible for glucosamine-induced vascular protection remains unclear. In this study, we test the hypothesis that increased A20 (also known as TNFAIP3 [tumor necrosis factor \u03b1-induced protein 3]) O-GlcNAcylation is required for glucosamine-mediated inhibition of inflammation and vascular protection.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Approach and Results\u2014<\/jats:title>\n            <jats:p>In cultured rat vascular smooth muscle cells, both glucosamine and the selective O-linked N-acetylglucosaminidase inhibitor thiamet G significantly increased A20 O-GlcNAcylation. Thiamet G treatment did not increase A20 protein expression but did significantly enhance binding to TAX1BP1 (Tax1-binding protein 1), a key regulatory protein for A20 activity. Adenovirus-mediated A20 overexpression further enhanced the effects of thiamet G on prevention of TNF-\u03b1 (tumor necrosis factor-\u03b1)\u2013induced I\u03baB (inhibitor of \u03baB) degradation, p65 phosphorylation, and increases in DNA-binding activity. A20 overexpression enhanced the inhibitory effects of thiamet G on TNF-\u03b1\u2013induced proinflammatory cytokine expression and vascular smooth muscle cell migration and proliferation, whereas silencing endogenous A20 by transfection of specific A20 shRNA significantly attenuated these inhibitory effects. In balloon-injured rat carotid arteries, glucosamine treatment markedly inhibited neointimal formation and p65 activation compared with vehicle treatment. Adenoviral delivery of A20 shRNA to the injured arteries dramatically reduced balloon injury\u2013induced A20 expression and inflammatory response compared with scramble shRNA and completely abolished the vascular protection of glucosamine.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec>\n            <jats:title>Conclusions\u2014<\/jats:title>\n            <jats:p>These results suggest that O-GlcNAcylation of A20 plays a key role in the negative regulation of NF-\u03baB signaling cascades in TNF-\u03b1\u2013treated vascular smooth muscle cells in culture and in acutely injured arteries, thus protecting against inflammation-induced vascular injury.<\/jats:p>\n          <\/jats:sec>","DOI":"10.1161\/atvbaha.117.310468","type":"journal-article","created":{"date-parts":[[2018,4,5]],"date-time":"2018-04-05T09:05:15Z","timestamp":1522919115000},"page":"1309-1320","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":38,"title":["O-Linked \u03b2-N-Acetylglucosamine Modification of A20 Enhances the Inhibition of NF-\u03baB (Nuclear Factor-\u03baB) Activation and Elicits Vascular Protection After Acute Endoluminal Arterial Injury"],"prefix":"10.1161","volume":"38","author":[{"given":"Dan","family":"Yao","sequence":"first","affiliation":[{"name":"From the Department of Cardiology, the Affiliated Hospital of Yangzhou University (D.Y., L.X., O.X., R.L., M.C., H.S., H.Z., F.Z., D.Y., Z.Z., K.G.)"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lijuan","family":"Xu","sequence":"additional","affiliation":[{"name":"From the Department of Cardiology, the Affiliated Hospital of Yangzhou University 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