{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T10:51:21Z","timestamp":1792234281230,"version":"4.4.0"},"reference-count":47,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2023,1,25]],"date-time":"2023-01-25T00:00:00Z","timestamp":1674604800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Bioeng. Biotechnol."],"abstract":"<jats:p><jats:bold>Purpose:<\/jats:bold> In order to overcome the problem that conventional pharmacological treatments of periodontitis cannot effectively synergizing antimicrobial and immunomodulation, inspired by the critical role of toll-like receptor 4 (TLR4) in bacterial recognition and immune activation, we demonstrated a combined antibacterial-immunoregulatory strategy based on biomimetic nanoparticles.<\/jats:p><jats:p><jats:bold>Methods:<\/jats:bold> Functioned cell membranes and silk fibroin nanoparticles (SNs) loaded with minocycline hydrochloride (Mino) were used to prepare a biomimetic nanoparticle (MSNCs). SNs and MSNCs were characterized by Scanning Electron Microscope, size, zeta potential, dispersion index. At the same time, SNs were characterized by cell counting kit-8 and real-time Polymerase Chain Reaction (RT-PCR). TLR4-expressing cell membranes were characterized by RT-PCR and western blot (WB). Cell membrane coating was characterized by Transmission Electron Microscope (TEM), the Bradford staining and WB. Then, Laser confocal, flow cytometry and agar plate coating were evaluated in vitro with antibacterial effects, RT-PCR was simultaneously evaluated with immunoregulatory effects. Finally, Anti-inflammatory treatment of MSNCs was evaluated in a ligature-induced periodontitis (LIP) mouse model.<\/jats:p><jats:p><jats:bold>Results:<\/jats:bold> Successfully prepared cell membranes overexpressing TLR4 and constructed MSNCs. <jats:italic>In vitro<\/jats:italic> studies had shown that MSNCs effectively targeted bacteria via TLR4 and acted as molecular decoys to competitively neutralize lipopolysaccharide (LPS) in the microenvironment as well as inhibit inflammatory activation of macrophages. <jats:italic>In vivo<\/jats:italic>, MSNCs effectively attenuated periodontal tissue inflammation and alveolar bone loss in a LIP mouse model.<\/jats:p><jats:p><jats:bold>Conclusion:<\/jats:bold> MSNCs have good targeted antibacterial and immunoregulatory effects, and provide a new and effective strategy for the treatment of periodontitis and have good potential for application in various types of pathogenic bacterial infections.<\/jats:p>","DOI":"10.3389\/fbioe.2023.1113367","type":"journal-article","created":{"date-parts":[[2023,1,25]],"date-time":"2023-01-25T09:33:00Z","timestamp":1674639180000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":44,"title":["Genetically engineered cell membrane-coated nanoparticles for antibacterial and immunoregulatory dual-function treatment of ligature-induced periodontitis"],"prefix":"10.3389","volume":"11","author":[{"given":"Yangjia","family":"Deng","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mingxing","family":"Ren","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ping","family":"He","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fengyi","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xu","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chongjing","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuzhou","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sheng","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2023,1,25]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"941","DOI":"10.1021\/acs.biochem.0c00343","article-title":"Emerging approaches to functionalizing cell membrane-coated nanoparticles","volume":"60","author":"Ai","year":"2020","journal-title":"Biochemistry"},{"key":"B2","doi-asserted-by":"publisher","first-page":"1107","DOI":"10.1126\/science.1130557","article-title":"Nanoparticle polymer composites: Where two small worlds meet","volume":"314","author":"Balazs","year":"2006","journal-title":"Science"},{"key":"B3","doi-asserted-by":"publisher","first-page":"31431","DOI":"10.1021\/acsami.1c05405","article-title":"Molecularly imprinted silk fibroin nanoparticles","volume":"13","author":"Bossi","year":"2021","journal-title":"ACS Appl. 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