{"id":143175,"date":"2022-05-18T18:07:06","date_gmt":"2022-05-18T16:07:06","guid":{"rendered":"https:\/\/medios.uchceu.es\/actualidad-ceu\/?p=143175"},"modified":"2022-05-18T18:09:19","modified_gmt":"2022-05-18T16:09:19","slug":"developpement-de-nouvelles-formulations-oculaires-a-la-progesterone-pour-le-traitement-de-la-retinite-pigmentaire","status":"publish","type":"post","link":"https:\/\/medios.uchceu.es\/actualidad-ceu\/fr\/developpement-de-nouvelles-formulations-oculaires-a-la-progesterone-pour-le-traitement-de-la-retinite-pigmentaire\/","title":{"rendered":"D\u00e9veloppement de nouvelles formulations oculaires \u00e0 la progest\u00e9rone pour le traitement de la r\u00e9tinite pigmentaire"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Le groupe de recherche Drugs Delivery Systems du CEU UCH, dirig\u00e9 par Alicia L\u00f3pez Castellano, a d\u00e9velopp\u00e9 et \u00e9valu\u00e9, dans la th\u00e8se du chercheur Adri\u00e1n Alambiaga, plusieurs formulations d&rsquo;administration oculaire topique afin que cette hormone freine le stress oxydant de la r\u00e9tine, et par l\u00e0-m\u00eame, le processus d\u00e9g\u00e9n\u00e9ratif de la maladie<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1060\" height=\"706\" src=\"https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-1060x706.jpg\" alt=\"\" class=\"wp-image-142357\" srcset=\"https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-1060x706.jpg 1060w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-300x200.jpg 300w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-768x512.jpg 768w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-1536x1023.jpg 1536w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-1200x800.jpg 1200w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-150x100.jpg 150w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-696x464.jpg 696w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-1068x712.jpg 1068w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-1920x1279.jpg 1920w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch-630x420.jpg 630w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-ceu-uch.jpg 1990w\" sizes=\"auto, (max-width: 1060px) 100vw, 1060px\" \/><figcaption>Les r\u00e9sultats de la th\u00e8se doctorale d&rsquo;Adri\u00e1n Alambiaga, d\u00e9fendue au CEU UCH, ont \u00e9t\u00e9 publi\u00e9s dans des revues scientifiques de renom.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">La <strong>r\u00e9tinite pigmentaire<\/strong> est une maladie d\u00e9g\u00e9n\u00e9rative qui affecte les cellules photor\u00e9ceptrices de la r\u00e9tine, les cones et les b\u00e2tons. D&rsquo;origine g\u00e9n\u00e9tique, cette maladie affecte tout d&rsquo;abord la vision nocturne, puis la vision p\u00e9riph\u00e9rique, et enfin la vision centrale, jusqu&rsquo;\u00e0 provoquer une c\u00e9cit\u00e9, par la mort progressive des photor\u00e9cepteurs. Les \u00e9tudes r\u00e9centes sur le r\u00f4le des hormones en tant que suppresseurs de la mort cellulaire face au stress oxydant et, concr\u00e8tement, de la <strong>progest\u00e9rone<\/strong>, ont conduit le <strong><u><a href=\"https:\/\/www.uchceu.es\/grupos-lineas-investigacion\/medicamentos-de-liberacion-controlada-dds\" target=\"_blank\" rel=\"noreferrer noopener\">groupe de recherche Drugs Delivery Systems<\/a><\/u>\u00a0(DDS)<\/strong> de l&rsquo;Universit\u00e9 CEU Cardenal Herrera \u00e0 d\u00e9velopper et tester, avec succ\u00e8s, diverses <strong>formules d&rsquo;administration oculaire topique<\/strong> de cette hormone afin de freiner le processus d\u00e9g\u00e9n\u00e9ratif caus\u00e9 par la r\u00e9tinite pigmentaire. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Les \u00e9tudes effectu\u00e9es par cette \u00e9quipe font partie de la <strong>th\u00e8se doctorale d&rsquo;Adri\u00e1n Alambiaga<\/strong>, d\u00e9fendue cette ann\u00e9e en avril au CEU UCH, <strong>sous la direction des docteures <u><a href=\"https:\/\/www.uchceu.es\/directorio\/alopez\" target=\"_blank\" rel=\"noreferrer noopener\">Alicia L\u00f3pez Castellano<\/a><\/u> et <u>Aracely Calatayud<\/u><\/strong>. Leurs r\u00e9sultats, publi\u00e9s dans diverses revues scientifiques, montrent que la progest\u00e9rone peut \u00eatre introduite dans diverses formulations oculaires, comme les gouttes, micelles et inserts, en quantit\u00e9 sufissante pour arriver de la surface oculaire jusqu&rsquo;\u00e0 la neuror\u00e9tine, sans pr\u00e9senter de toxicit\u00e9 ou irritation. Comme le souligne le docteur Adri\u00e1n Alambiaga, auteur de la th\u00e8se, \u00ab\u00a0la diffusion de la progest\u00e9rone est plus importante lorsque l&rsquo;administration est effectu\u00e9e \u00e0 l&rsquo;aide d&rsquo;inserts oculaires dans des solutions aqueuses. Bien que celles-ci aient montr\u00e9 une certaine perm\u00e9abilit\u00e9 \u00e0 travers la scl\u00e9rotique et la corn\u00e9e, l&rsquo;insert est la meilleure formulation oculaire parmi celles test\u00e9es, car elle lib\u00e8re en continu de la progest\u00e9rone et fournit des quantit\u00e9s sup\u00e9rieures dans la neuror\u00e9tine\u00a0\u00bb.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-1060x795.jpg\" alt=\"Adri\u00e1n Alambiaga, junto a sus directoras de tesis\" class=\"wp-image-142354\" width=\"1060\" height=\"795\" srcset=\"https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-1060x795.jpg 1060w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-300x225.jpg 300w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-768x576.jpg 768w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-1536x1152.jpg 1536w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-1200x900.jpg 1200w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-150x113.jpg 150w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-696x522.jpg 696w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-1068x801.jpg 1068w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-1920x1440.jpg 1920w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-560x420.jpg 560w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-80x60.jpg 80w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras-265x198.jpg 265w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-directoras.jpg 2048w\" sizes=\"auto, (max-width: 1060px) 100vw, 1060px\" \/><figcaption>Adri\u00e1n Alambiaga avec ses deux directrices de th\u00e8se, les docteures Alicia L\u00f3pez Castellano et Aracely Calatayud.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Voie topique oculaire, la meilleure alternative<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9tant donn\u00e9 que la progest\u00e9rone est pratiquement insoluble dans l&rsquo;eau et qu&rsquo;elle se dissout lentement et incompl\u00e8tement dans les fluides gastro-intestinaux, elle s&rsquo;inactive rapidement lorsqu&rsquo;elle est administr\u00e9e par voie orale. Il est de plus n\u00e9cessaire d&rsquo;administrer de fortes concentrations de progest\u00e9rone par voie orale afin qu&rsquo;une petite quantit\u00e9e arrive jusqu&rsquo;\u00e0 l&rsquo;oeil. \u00ab&nbsp;Il est important pour cela d&rsquo;\u00e9tudier les possibilit\u00e9s d&rsquo;administrer de la <strong>progest\u00e9rone par voie topique et localement dans l&rsquo;\u0153il<\/strong>, afin de minimiser ainsi la concentration \u00e0 administrer&nbsp;\u00bb, souligne Alambiaga.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Lors de son travail pour sa th\u00e8se doctorale, sous la direction des docteures L\u00f3pez Castellano et Calatayud, le chercheur <strong>Adri\u00e1n Alambiaga<\/strong> a d\u00e9velopp\u00e9 plusieurs <strong>formulations pharmaceutiques \u00e0 la progest\u00e9rone en vue de leur possible administration oculaire topique<\/strong>. Tant les formulations aqueuses, pour augmenter la permanence et la diffusion des mol\u00e9cules sur la surface oculaire, que les inserts oculaires, qui augmentent le temps de contact du m\u00e9dicament avec la surface oculaire, en accroissent la biodisponibilit\u00e9 et permettent une lib\u00e9ration contr\u00f4l\u00e9e, un dosage pr\u00e9cis et une fr\u00e9quence d&rsquo;administration plus basse.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-1060x706.jpg\" alt=\"\" class=\"wp-image-142363\" width=\"1060\" height=\"706\" srcset=\"https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-1060x706.jpg 1060w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-300x200.jpg 300w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-768x512.jpg 768w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-1536x1023.jpg 1536w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-1200x800.jpg 1200w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-150x100.jpg 150w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-696x464.jpg 696w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-1068x712.jpg 1068w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-1920x1279.jpg 1920w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo-630x420.jpg 630w, https:\/\/medios.uchceu.es\/actualidad-ceu\/wp-content\/uploads\/sites\/2\/2022\/05\/tesis-adrian-alambiaga-grupo.jpg 1990w\" sizes=\"auto, (max-width: 1060px) 100vw, 1060px\" \/><figcaption>Chercheurs du\u00a0Grupo\u00a0Drugs Delivery Systems (DDS)\u00a0de l&rsquo;Universit\u00e9 CEU Cardenal Herrera (CEU UCH) ; au centre, Adri\u00e1n Alambiaga et Alicia L\u00f3pez Castellano.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Nouvelle strat\u00e9gie th\u00e9rapeutique<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">La <strong>&nbsp;chercheuse principale du groupe, <\/strong><strong><u>Alicia L\u00f3pez Castellano<\/u><\/strong>, professeure de Technologie au CEU UCH, souligne que, gr\u00e2ce \u00e0 la <strong>th\u00e8se doctorale d&rsquo;Adri\u00e1n Alambiaga<\/strong>, \u00ab&nbsp;nous avons d\u00e9montr\u00e9 pour la premi\u00e8re fois la <strong>viabilit\u00e9 de l&rsquo;administration oculaire topique de la progest\u00e9rone<\/strong>, ce qui ouvre la voie \u00e0 une nouvelle strat\u00e9gie th\u00e9rapeutique pour les patients atteints de r\u00e9tinite pigmentaire et, par extension, pour d&rsquo;autres maladies oculaires dans lesquelles le stress oxydant est un facteur de risque, telles que le glaucome, la d\u00e9g\u00e9n\u00e9ration maculaire associ\u00e9es \u00e0 l&rsquo;\u00e2ge, l&rsquo;\u0153d\u00e8me maculaire secondaire \u00e0 l&rsquo;occlusion veineuse de la r\u00e9tine, la r\u00e9tinite par cytom\u00e9galovirus, l&rsquo;uv\u00e9ite post\u00e9rieure et la r\u00e9tinopathie diab\u00e9tique&nbsp;\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Une partie des r\u00e9sultats inclus dans la th\u00e8se doctorale d&rsquo;Adri\u00e1n Alambiaga ont \u00e9t\u00e9 publi\u00e9s dans divers <strong>articles scientifiques<\/strong> dans des revues telles que <em>Pharmaceutics<\/em>,&nbsp;<em>Journal of Pharmaceuticals and Biomedical Analysis<\/em>&nbsp;et&nbsp;<em>International Journal of Pharmaceutics<\/em>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pour plus d&rsquo;informations :<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32722548\/\">Micelles of Progesterone for Topical Eye Administration: Interspecies and Intertissues Differences in Ex Vivo Ocular Permeability.<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alambiaga-Caravaca AM, Calatayud-Pascual MA, Rodilla V, Concheiro A, L\u00f3pez-Castellano A, Alvarez-Lorenzo C.&nbsp;<em>Pharmaceutics<\/em>. 2020 Jul 26;12(8):702. doi: 10.3390\/pharmaceutics12080702.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/33217709\/\">HPLC-UV analytical validation of a method for quantification of progesterone in ex vivo trans-corneal and trans-scleral diffusion studies.<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alambiaga-Caravaca AM, Domenech-Monsell IM, Sebasti\u00e1n-Morell\u00f3 M, Miranda M, Balaguer-Fern\u00e1ndez C, Calatayud-Pascual A, Rodilla V, L\u00f3pez-Castellano A.&nbsp;<em>J Pharm Biomed Anal<\/em>. 2021 Jan 30;193:113749. doi: 10.1016\/j.jpba.2020.113749. Epub 2020 Nov 6.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/34303817\/\">Development, characterization, and ex vivo evaluation of an insert for the ocular administration of progesterone.<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alambiaga-Caravaca AM, Domenech-Monsell IM, Sebasti\u00e1n-Morell\u00f3 M, Calatayud-Pascual MA, Merino V, Rodilla V, L\u00f3pez-Castellano A. Int J Pharm. 2021 Sep 5;606:120921. doi: 10.1016\/j.ijpharm.2021.120921. Epub 2021 Jul 23.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Topical ocular administration of progesterone decreases photoreceptor cell death in retinal degeneration slow (rds) mice.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Alambiaga-Caravaca AM, Cant\u00f3 A, Rodilla V, Miranda M, L\u00f3pez-Castellano A.&nbsp;<em>Pharmaceuticals<\/em>. 2022&nbsp;<em>15&nbsp;<\/em>(3), 328;&nbsp;<a href=\"https:\/\/doi.org\/10.3390\/ph15030328\">https:\/\/doi.org\/10.3390\/ph15030328<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le groupe de recherche Drugs Delivery Systems du CEU UCH, dirig\u00e9 par Alicia L\u00f3pez Castellano, a d\u00e9velopp\u00e9 et \u00e9valu\u00e9, dans la th\u00e8se du chercheur Adri\u00e1n Alambiaga, plusieurs formulations d&rsquo;administration oculaire topique afin que cette hormone freine le stress oxydant de la r\u00e9tine, et par l\u00e0-m\u00eame, le processus d\u00e9g\u00e9n\u00e9ratif de la maladie La r\u00e9tinite pigmentaire est [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":142363,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[1565,1566,1090],"tags":[765],"class_list":["post-143175","post","type-post","status-publish","format-standard","has-post-thumbnail","category-sciences","category-sciences-de-la-sante","category-destacada_home2","tag-ceindo"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>D\u00e9veloppement de nouvelles formulations oculaires \u00e0 la progest\u00e9rone pour le traitement de la r\u00e9tinite pigmentaire<\/title>\n<meta name=\"description\" content=\"Le groupe de recherche Drugs Delivery Systems du CEU UCH, dirig\u00e9 par Alicia L\u00f3pez Castellano, a d\u00e9velopp\u00e9 et \u00e9valu\u00e9, dans la th\u00e8se du chercheur Adri\u00e1n Alambiaga, plusieurs formulations d&#039;administration oculaire topique afin que cette hormone freine le stress oxydant de la r\u00e9tine, et par l\u00e0-m\u00eame, le processus d\u00e9g\u00e9n\u00e9ratif de la maladie\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/medios.uchceu.es\/actualidad-ceu\/fr\/developpement-de-nouvelles-formulations-oculaires-a-la-progesterone-pour-le-traitement-de-la-retinite-pigmentaire\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"D\u00e9veloppement de nouvelles formulations oculaires \u00e0 la progest\u00e9rone pour le traitement de la r\u00e9tinite pigmentaire\" \/>\n<meta property=\"og:description\" content=\"Le groupe de recherche Drugs Delivery Systems du CEU UCH, dirig\u00e9 par Alicia L\u00f3pez Castellano, a d\u00e9velopp\u00e9 et \u00e9valu\u00e9, 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