{"id":171,"date":"2016-12-07T10:45:39","date_gmt":"2016-12-07T09:45:39","guid":{"rendered":"http:\/\/lbti.cnrs.fr\/?page_id=171"},"modified":"2023-07-03T11:30:38","modified_gmt":"2023-07-03T09:30:38","slug":"physiopathologie-et-regeneration-du-complexe-pulpodentinaire-2","status":"publish","type":"page","link":"https:\/\/lbti.ibcp.fr\/?page_id=171","title":{"rendered":"Hydrogels antibact\u00e9riens innovants pour la r\u00e9g\u00e9n\u00e9ration de la pulpe dentaire"},"content":{"rendered":"<h4><span style=\"color: #000000;\"><em><strong>Porteur de projet<\/strong><\/em>\u00a0 :<\/span> <a href=\"maxime.ducret@ibcp.fr\">Maxime Ducret<\/a><\/h4>\n<div class=\"\">\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><em><strong>Personnes impliqu\u00e9es dans le projet\u00a0<\/strong><\/em> : <\/span><span style=\"color: #000000;\">M. Bekhouche, <\/span><span style=\"color: #000000;\">J-C Farges, M. Pasdeloup, M L\u00e9v\u00eaque, S. Gobert<br \/>\n<\/span><\/p>\n<hr \/>\n<p>Les infections carieuses sont consid\u00e9r\u00e9es comme un probl\u00e8me de sant\u00e9 publique majeur par l\u2019Organisation Mondiale de la Sant\u00e9. Les caries sont caus\u00e9es par les bact\u00e9ries du microbiote buccal, qui d\u00e9gradent l\u2019\u00e9mail et la dentine, jusqu\u2019\u00e0 ce que la pulpe dentaire soit atteinte et qu\u2019elle n\u00e9crose. Un des challenges cl\u00e9s du traitement de la n\u00e9crose pulpaire est la d\u00e9sinfection de l\u2019endodonte (partie interne de la dent). En effet, cet espace est tr\u00e8s petit, intriqu\u00e9, poreux, et constitue un environnement id\u00e9al pour la croissance bact\u00e9rienne et la formation de biofilms. Les traitements endodontiques consistent actuellement en des proc\u00e9dures de \u00ab\u00a0d\u00e9vitalisation\u00a0\u00bb qui laissent la dent morte. Ces techniques ont des limites, une des plus communes \u00e9tant la r\u00e9infection. L\u2019unique solution face \u00e0 ces r\u00e9infections pourrait \u00eatre une r\u00e9g\u00e9n\u00e9ration de la pulpe dentaire. Deux types d\u2019approches sont actuellement propos\u00e9es dans le but de reconstruire le tissu pulpaire (Figure 1) : &#8211; une \u00ab\u00a0cell-based strategy\u00a0\u00bb qui n\u00e9cessite d\u2019utiliser des cellules exog\u00e8nes et un biomat\u00e9riau, &#8211; une \u00ab\u00a0cell-free strategy\u00a0\u00bb qui propose de laisser les cellules de l\u2019h\u00f4te venir coloniser un mat\u00e9riau pour reconstruire une nouvelle pulpe dentaire.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-5223\" src=\"https:\/\/lbti.ibcp.fr\/wp-content\/uploads\/2023\/06\/strategie-caries.jpg\" alt=\"\" width=\"659\" height=\"370\" \/><\/p>\n<p><em>Figure 1\u00a0: Illustration des deux strat\u00e9gies propos\u00e9es pour la reconstruction de la pulpe dentaire. \u00a0Une \u00ab cell-based strategy\u00a0\u00bb propose d\u2019associer cellules et mat\u00e9riau pour obtenir une diff\u00e9renciation des cellules, alors que la \u00ab\u00a0cell-free strategy\u00a0\u00bb propose de laisser les cellules de l\u2019h\u00f4te coloniser l\u2019int\u00e9rieur de la dent par un ph\u00e9nom\u00e8ne appel\u00e9 \u00ab\u00a0cell homing \u00bb.<\/em><\/p>\n<p>Cette th\u00e9matique de recherche s\u2019inclue dans le projet ENDONANOBIOTIC (soutenu par l\u2019ANR) qui propose la conception d\u2019un hydrogel de r\u00e9g\u00e9n\u00e9ration, capable (i) de d\u00e9sinfecter totalement l\u2019int\u00e9rieur de la dent (l\u2019endodonte), (ii) de supporter la croissance et la prolif\u00e9ration de cellules souches de la pulpe dentaire dans le but de reformer une pulpe fonctionnelle et (iii) de r\u00e9duire l\u2019inflammation pour favoriser une r\u00e9action inflammatoire, mais \u00ab\u00a0pro r\u00e9g\u00e9n\u00e9rative\u00a0\u00bb (Figure 2).<\/p>\n<p>Pour le projet ENDONANOBIOTIC, le mat\u00e9riau choisi est la fibrine, pour ses propri\u00e9t\u00e9s biologiques et sa facilit\u00e9 d\u2019utilisation. Pour l\u2019aspect antibact\u00e9rien, les antibiotiques apparaissent comme une piste de choix, mais ils pr\u00e9sentent des effets potentiellement cytotoxiques pour les cellules souches. Ils participeraient \u00e9galement \u00e0 cr\u00e9er des m\u00e9canismes d\u2019antibior\u00e9sistance s\u2019ils sont trop utilis\u00e9s. Ainsi, pour r\u00e9duire l\u2019utilisation ou la concentration des antibiotiques, diverses strat\u00e9gies antibact\u00e9riennes ont d\u00e9j\u00e0 \u00e9t\u00e9 propos\u00e9es par l\u2019\u00e9quipe comme l\u2019adjonction de chitosane dans la fibrine ou encore l\u2019association de nanoparticules de clindamycine qui r\u00e9duisent le relargage syst\u00e9mique de l\u2019antibiotique. D\u2019autres strat\u00e9gies alternatives sont actuellement \u00e0 l\u2019\u00e9tude.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-5213\" src=\"https:\/\/lbti.ibcp.fr\/wp-content\/uploads\/2023\/06\/endonanobiotics.jpg\" alt=\"\" width=\"858\" height=\"229\" \/><\/p>\n<p><em>Figure 2\u00a0: Illustration des diff\u00e9rents axes d\u2019\u00e9tude du projet ENDONANOBIOTIC.<\/em><\/p>\n<hr \/>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><em><strong>S\u00e9lection de publications :\u00a0<\/strong><\/em><\/span><\/p>\n<div class=\"supp\">\n<p>Richert R, Ducret M, Alliot-Licht B, Bekhouche M, Gobert S, Farges JC. A critical analysis of research methods and experimental models to study pulpitis. Int Endod J. 2022 Mar;55 Suppl 1:14-36. doi: 10.1111\/iej.13683. Epub 2022 Feb 2.<\/p>\n<p>Ducret M, Costantini A, Gobert S, Farges JC, Bekhouche M. Fibrin-based scaffolds for dental pulp regeneration: from biology to nanotherapeutics. Eur Cell Mater. 2021 Jan 2;41:1-14. doi: 10.22203\/eCM.v041a01.<\/p>\n<p>Renard E, Amiaud J, Delbos L, Charrier C, Montembault A, Ducret M, Farges JC, David L, Alliot-Licht B, Gaudin A. Dental pulp inflammatory\/immune response to a chitosan-enriched fibrin hydrogel in the pulpotomised rat incisor. Eur Cell Mater. 2020 Aug 20;40:74-87. doi: 10.22203\/eCM.v040a05.<\/p>\n<p><span class=\"docsum-authors full-authors\">Bekhouche M, Bolon M, Charriaud F, Lamrayah M, Da Costa D, Primard C, Costantini A, Pasdeloup M, Gobert S, Mallein-Gerin F, Verrier B, Ducret M, Farges JC.<\/span> <a class=\"docsum-title\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32804177\/\" data-ga-category=\"result_click\" data-ga-action=\"3\" data-ga-label=\"32804177\" data-full-article-url=\"from_term=mallein-gerin&amp;from_pos=3\" data-article-id=\"32804177\">Development of an antibacterial nanocomposite hydrogel for human dental pulp engineering. <\/a><span class=\"docsum-journal-citation full-journal-citation\">J Mater Chem B. 2020 Sep 23;8(36):8422-8432. doi: 10.1039\/d0tb00989j.<\/span> <span class=\"citation-part\">PMID: <span class=\"docsum-pmid\">32804177<\/span><\/span><\/p>\n<p class=\"desc\"><b>&#8211; <\/b>Ducret M, Farges JC, Pasdeloup M, Perrier-Groult E, Mueller A, Mallein-Gerin F, Fabre H. <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/30838566\">Phenotypic Identification of Dental Pulp Mesenchymal Stem\/Stromal Cells Subpopulations with Multiparametric Flow Cytometry.\u00a0<\/a><strong><span class=\"jrnl\" title=\"Methods in molecular biology (Clifton, N.J.)\">Methods Mol Biol<\/span>.<\/strong> 2019;1922:77-90. doi: 10.1007\/978-1-4939-9012-2_8.<\/p>\n<\/div>\n<div class=\"supp\">\n<p class=\"desc\">&#8211; Ducret M, Montembault A, Josse J, Pasdeloup M, Celle A, Benchrih R, <b>Mallein-Gerin<\/b> F, Alliot-Licht B, David L, Farges JC. <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/30712823\">Design and characterization of a chitosan-enriched fibrin hydrogel for human dental pulp regeneration.\u00a0<\/a><strong><span class=\"jrnl\" title=\"Dental materials : official publication of the Academy of Dental Materials\">Dent Mater<\/span>.<\/strong> 2019 Apr;35(4):523-533. doi: 10.1016\/j.dental.2019.01.018. Epub 2019 Jan 31.<\/p>\n<\/div>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>&#8211; <\/strong>Ducret M, Fabre H, Celle A, Mallein-Gerin F, Perrier-Groult E, Alliot-Licht B, Farges JC.<\/span> <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/28372291\">Current challenges in human tooth revitalization.<\/a> <span style=\"color: #000000;\"><strong>Biomed Mater Eng<em>.<\/em><\/strong> 2017;28(s1):S159-S168. PMID: 28372291. doi: 10.3233\/BME-171637.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>&#8211; <\/strong>Ducret M, Fabre H, Degoul O, Atzeni G, McGuckin C, Forraz N, Mallein-Gerin F, Perrier-Groult E, Alliot-Licht B, Farges JC.<\/span> <a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/27877132\">Immunophenotyping Reveals the Diversity of Human Dental Pulp Mesenchymal Stromal Cells <em>In vivo<\/em> and Their Evolution upon <em>In vitro<\/em> Amplification<u>.<\/u><\/a> <span style=\"color: #000000;\"><strong>Front Physiol<\/strong><strong>.<\/strong> 2016 Nov 8;7:512. eCollection 2016. PMID: 27877132. doi:<\/span> <a href=\"https:\/\/doi.org\/10.3389\/fphys.2016.00512\">10.3389\/fphys.2016.00512<\/a><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\"><strong>&#8211; <\/strong>Park S-H, Ye L, Love RM, Farges J-C, Yumoto H.\u00a0<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/26880861\">Inflammation\u00a0of the\u00a0Dental Pulp.<\/a> <strong>Mediat Inflamm<\/strong> 2015; Article ID 980196. doi: org\/10.1155\/2015\/980196.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"color: #000000;\">&#8211; Ducret M, Fabre H, Degoul O, Atzeni G, Mcguckin C, Forraz N, Alliot-Licht B, Mallein-Gerin F, Perrier-Groult E, Farges J-C.<\/span> <a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC4526817\/\">Manufacturing of dental pulp cell-based products from human third molars\u00a0: current strategies and future investigations.<\/a> <span style=\"color: #000000;\"><strong>Front Physiol<\/strong> 2015\u00a0;6:213. doi:10.3389\/fphys.2015.00213.<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; Ducret M, Fabre H, Farges J-C, Degoul O, Atzeni G, Mcguckin C, Forraz N, Mallein-Gerin F, Perrier-Groult E.<\/span> <a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pubmed\/26189777\">Production of human dental pulp cells with a medicinal manufacturing approach.<\/a> <span style=\"color: #000000;\"><strong>J Endod<\/strong> 2015\u00a0; 41(9):1492-9. doi\u00a0: 10.1016\/j.joen.2015.05.017.<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; Farges J-C, Bellanger A, Ducret M, Aubert-Foucher E, Richard B, Alliot-Licht B, Bleicher F, Carrouel F.<\/span> <a href=\"http:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC4477070\/\" data-cke-saved-=\"\">Human odontoblast-like cells produce nitric oxide with antibacterial activity upon TLR2 activation<\/a>. <span style=\"color: #000000;\"><strong>Front Physiol<\/strong> 2015\u00a0;6:185. doi\u00a0: 10.3389\/fphys.2015.00185.<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; Gaudin A, Renard E, Hill M, Bouchet-Delbos L, Bienvenu-Louvet G,\u00a0Farges J-C, Cuturi M-C, Alliot-Licht B<\/span>. <span style=\"color: #3366ff;\"><a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/25702858\">Phenotypic analysis of immunocompetent cells in healthy human\u00a0dental pulp.<\/a><\/span> <span style=\"color: #000000;\"><strong>J Endod <\/strong>2015\u00a0;41(5):621-7. doi\u00a0: 10.1016\/j.joen.2015.01.005.<\/span><\/p>\n<p><span style=\"color: #000000;\">&#8211; Bonnamain V, Thinard R, Sergent-Tanguy S, Huet P, Bienvenu G, Naveilhan P, Farges J-C, Alliot-Licht B.<\/span>\u00a0<a href=\"https:\/\/www.ncbi.nlm.nih.gov\/pubmed\/24376422\">Human\u00a0dental pulp\u00a0stem cells\u00a0cultured\u00a0in\u00a0serum-free\u00a0supplemented\u00a0medium.<\/a> <span style=\"color: #000000;\"><strong>Front Physiol<\/strong> 2013\u00a0;4:357. doi:10.3389\/fphys.2013.00357.<\/span><\/p>\n<p><strong><em>Collaborations :\u00a0<\/em><\/strong><\/p>\n<p>-Pr Colin McGUCKIN &amp; Dr Nico FORRAZ, CTI-BIOTECH, Meyzieu.<\/p>\n<p>-Dr Audrey AUSSEL, Dr Nicolas L\u2019heureux, Dr Olivia K\u00e9rour\u00e9dan, Laboratoire Biotiss, Bordeaux.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Porteur de projet\u00a0 : Maxime Ducret Personnes impliqu\u00e9es dans le projet\u00a0 : M. Bekhouche, J-C Farges, M. Pasdeloup, M L\u00e9v\u00eaque, S. Gobert Les infections carieuses sont consid\u00e9r\u00e9es comme un probl\u00e8me de sant\u00e9 publique majeur par l\u2019Organisation Mondiale de la Sant\u00e9. Les caries sont caus\u00e9es par les bact\u00e9ries du microbiote buccal, qui d\u00e9gradent l\u2019\u00e9mail et la<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-171","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/lbti.ibcp.fr\/index.php?rest_route=\/wp\/v2\/pages\/171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lbti.ibcp.fr\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/lbti.ibcp.fr\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/lbti.ibcp.fr\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/lbti.ibcp.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=171"}],"version-history":[{"count":33,"href":"https:\/\/lbti.ibcp.fr\/index.php?rest_route=\/wp\/v2\/pages\/171\/revisions"}],"predecessor-version":[{"id":5284,"href":"https:\/\/lbti.ibcp.fr\/index.php?rest_route=\/wp\/v2\/pages\/171\/revisions\/5284"}],"wp:attachment":[{"href":"https:\/\/lbti.ibcp.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}