{"id":2166,"date":"2025-12-11T04:15:08","date_gmt":"2025-12-11T04:15:08","guid":{"rendered":"https:\/\/subject157.com\/?p=2166"},"modified":"2025-12-11T05:13:25","modified_gmt":"2025-12-11T05:13:25","slug":"selank-e-a-modulacao-gabaergica-evidencia-em-ansiolise-homeostase-do-stress-e-regulacao-imunoneural-2025","status":"publish","type":"post","link":"https:\/\/subject157.com\/fr\/selank-e-a-modulacao-gabaergica-evidencia-em-ansiolise-homeostase-do-stress-e-regulacao-imunoneural-2025\/","title":{"rendered":"Selank et la modulation GABAergique : preuves dans l'anxiolyse, l'hom\u00e9ostasie du stress et la r\u00e9gulation immunoneurale (2025)"},"content":{"rendered":"<h2 class=\"wp-block-heading\">R\u00e9sum\u00e9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selank est un heptapeptide d\u00e9riv\u00e9 du facteur immunor\u00e9gulateur Tuftsin, d\u00e9velopp\u00e9 comme agent anxiolytique non s\u00e9datif. Des \u00e9tudes publi\u00e9es entre 1990 et 2024 d\u00e9montrent que Selank module les voies GABAergiques, r\u00e9duit l'hyperactivit\u00e9 de l'axe HPA, modifie l'expression des cytokines et am\u00e9liore la stabilit\u00e9 \u00e9motionnelle et les performances cognitives en situation de stress. Cette revue consolide les preuves pr\u00e9cliniques et les essais humains \u00e0 petite \u00e9chelle.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">1. Introduction<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selank a \u00e9t\u00e9 con\u00e7u \u00e0 l'Institut russe de recherche en biotechnologie comme :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>anxiolytique peptidique,<\/li>\n\n\n\n<li>modulateur immunoneural,<\/li>\n\n\n\n<li>agent stabilisateur du comportement,<\/li>\n\n\n\n<li>alternative non s\u00e9dative aux benzodiaz\u00e9pines.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Il est structurellement bas\u00e9 sur la s\u00e9quence <strong>Thr-Lys-Pro-Arg-Pro-Gly-Pro<\/strong>, d\u00e9riv\u00e9e du facteur immunitaire <strong>Tuftsin<\/strong>, un modulateur phagocytaire naturel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L'objectif du d\u00e9veloppement \u00e9tait de cr\u00e9er un compos\u00e9 qui :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>r\u00e9duisait l'anxi\u00e9t\u00e9 sans s\u00e9dation,<\/li>\n\n\n\n<li>stabiliser la r\u00e9ponse au stress,<\/li>\n\n\n\n<li>modulerait indirectement la voie GABA,<\/li>\n\n\n\n<li>agisse comme r\u00e9gulateur neuro-immunitaire.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">2. M\u00e9canismes biologiques fondamentaux<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">2.1 Modulation du syst\u00e8me GABA (principale voie anxiolytique)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Selank augmente la sensibilit\u00e9 et la disponibilit\u00e9 fonctionnelle de :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>GABA-A<\/strong>, principaux r\u00e9cepteurs inhibiteurs du SNC.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Effets observ\u00e9s :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>R\u00e9duction de l'excitabilit\u00e9 neuronale<\/li>\n\n\n\n<li>R\u00e9duction du \u00ab bruit neuronal \u00bb associ\u00e9 \u00e0 l'anxi\u00e9t\u00e9<\/li>\n\n\n\n<li>Stabilisation \u00e9motionnelle<\/li>\n\n\n\n<li>Relaxation sans s\u00e9dation<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Compar\u00e9 aux benzodiaz\u00e9pines :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ne provoque pas de tol\u00e9rance rapide<\/li>\n\n\n\n<li>Ne provoque pas de d\u00e9pendance<\/li>\n\n\n\n<li>Ne compromet pas la coordination motrice<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2.2 R\u00e9gulation de l'axe HPA (hypothalamus-hypophyse-surr\u00e9nales)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Selank a d\u00e9montr\u00e9 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>R\u00e9duction du CRH (hormone corticotrope)<\/li>\n\n\n\n<li>R\u00e9duction de l'ACTH induite par le stress<\/li>\n\n\n\n<li>Normalisation de la production de cortisol<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ces effets expliquent leur capacit\u00e9 \u00e0 r\u00e9duire :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>anxi\u00e9t\u00e9 anticipatoire,<\/li>\n\n\n\n<li>r\u00e9action excessive au stress,<\/li>\n\n\n\n<li>tension psychosomatique.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2.3 Modulation des cytokines et voie immunoneurale<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00e9riv\u00e9 du Tuftsin, Selank joue un r\u00f4le immunologique.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Des \u00e9tudes montrent que :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u2193 IL-6<\/li>\n\n\n\n<li>\u2193 TNF-\u03b1<\/li>\n\n\n\n<li>\u2193 Inflammation syst\u00e9mique l\u00e9g\u00e8re<\/li>\n\n\n\n<li>\u2191 IFN-\u03b3 dans les \u00e9tats d'immunit\u00e9 faible<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Ce m\u00e9canisme contribue \u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>stabilit\u00e9 \u00e9motionnelle,<\/li>\n\n\n\n<li>r\u00e9duction de la fatigue mentale,<\/li>\n\n\n\n<li>modulation neuroinflammatoire.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2.4 Am\u00e9lioration des fonctions cognitives en situation de stress<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c0 la fois anxiolytique et pro-cognitif, Selank :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>am\u00e9liore la m\u00e9moire de travail<\/li>\n\n\n\n<li>acc\u00e9l\u00e8re la vitesse de traitement<\/li>\n\n\n\n<li>augmente la r\u00e9sistance mentale dans les environnements stressants<\/li>\n\n\n\n<li>r\u00e9duit la distraction induite par l'anxi\u00e9t\u00e9<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Contrairement \u00e0 Semax :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ne stimule pas autant le BDNF<\/li>\n\n\n\n<li>n'augmente pas les performances chez les volontaires d\u00e9j\u00e0 calmes<\/li>\n\n\n\n<li>agit davantage sur la stabilit\u00e9 \u00e9motionnelle que sur la plasticit\u00e9 neuronale<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C'est donc id\u00e9al pour <em>stress cognitif<\/em>, <em>examens<\/em>, <em>surcharge de travail<\/em>, etc.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">3. Preuve pr\u00e9clinique et clinique<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">3.1 \u00c9tudes sur l'anxi\u00e9t\u00e9 induite<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Des r\u00e9sultats coh\u00e9rents montrent que :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>r\u00e9duction des comportements anxieux<\/li>\n\n\n\n<li>normalisation des marqueurs physiologiques<\/li>\n\n\n\n<li>absence de s\u00e9dation<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3.2 Essais sur l'homme (Russie et Ukraine)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dans des essais cliniques \u00e0 petite \u00e9chelle :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>r\u00e9duction des sympt\u00f4mes d'anxi\u00e9t\u00e9 g\u00e9n\u00e9ralis\u00e9e<\/li>\n\n\n\n<li>am\u00e9lioration de la concentration et de la prise de d\u00e9cision<\/li>\n\n\n\n<li>effets rapides (30 \u00e0 60 min)<\/li>\n\n\n\n<li>excellente tol\u00e9rance<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Contrairement aux benzodiaz\u00e9pines :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>aucun impact n\u00e9gatif sur la m\u00e9moire<\/li>\n\n\n\n<li>sans dysfonctionnement moteur<\/li>\n\n\n\n<li>sans augmentation de la somnolence diurne<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3.3 Effets sur la d\u00e9pression l\u00e9g\u00e8re<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Dans certains mod\u00e8les, Selank a montr\u00e9 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>normalisation de la monoamine<\/li>\n\n\n\n<li>augmentation mod\u00e9r\u00e9e de la s\u00e9rotonine dans le cortex<\/li>\n\n\n\n<li>potentiel d'application future dans les \u00e9tats d\u00e9pressifs l\u00e9gers<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Pas encore suffisamment robuste sur le plan clinique pour tirer des conclusions d\u00e9finitives.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">4. Biodisponibilit\u00e9 et pharmacodynamique<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Administration exp\u00e9rimentale typique : intranasale<\/li>\n\n\n\n<li>Absorption rapide \u00e0 travers la lame cribl\u00e9e<\/li>\n\n\n\n<li>Action centrale en ~10 minutes<\/li>\n\n\n\n<li>Demi-vie courte : 15 \u00e0 20 minutes<\/li>\n\n\n\n<li>Effets prolong\u00e9s dus \u00e0 la modulation neurochimique en aval<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tout comme Semax, l'effet dure beaucoup plus longtemps que la demi-vie plasmatique.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">5. Applications dans la recherche<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">5.1 Anxi\u00e9t\u00e9 et stress<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Le domaine le plus solide, avec des am\u00e9liorations enregistr\u00e9es dans :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>anxi\u00e9t\u00e9 g\u00e9n\u00e9ralis\u00e9e<\/li>\n\n\n\n<li>anxi\u00e9t\u00e9 situationnelle<\/li>\n\n\n\n<li>stress cognitif<\/li>\n\n\n\n<li>stress post-traumatique l\u00e9ger<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">5.2 Neuroinflammation et immunomodulation<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Les r\u00e9sultats comprennent :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>r\u00e9duction des cytokines inflammatoires<\/li>\n\n\n\n<li>stabilisation de la microglie<\/li>\n\n\n\n<li>am\u00e9lioration de la fatigue mentale associ\u00e9e \u00e0 l'inflammation<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">5.3 Cognition sous charge \u00e9motionnelle<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Quand l'anxi\u00e9t\u00e9 nuit \u00e0 la performance :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>d\u00e9cisions plus rapides<\/li>\n\n\n\n<li>moins de distraction<\/li>\n\n\n\n<li>plus grande coh\u00e9rence mentale<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">6. S\u00e9curit\u00e9, effets secondaires et contre-indications<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Profil de s\u00e9curit\u00e9 \u00e9lev\u00e9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Effets observ\u00e9s :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>l\u00e9g\u00e8re irritation nasale<\/li>\n\n\n\n<li>l\u00e9g\u00e8re s\u00e9dation chez les personnes extr\u00eamement sensibles<\/li>\n\n\n\n<li>somnolence si utilis\u00e9 \u00e0 fortes doses<\/li>\n\n\n\n<li>maux de t\u00eate occasionnels<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">Contre-indications th\u00e9oriques<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>d\u00e9pression s\u00e9v\u00e8re (risque de sous-traitement)<\/li>\n\n\n\n<li>psychose ou manie<\/li>\n\n\n\n<li>\u00e9pilepsie (augmente rarement l'excitabilit\u00e9 paradoxale)<\/li>\n\n\n\n<li>grossesse \/ allaitement<\/li>\n\n\n\n<li>maladies auto-immunes actives (donn\u00e9es insuffisantes)<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">7. Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selank est un peptide neuromodulateur destin\u00e9 \u00e0 :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>r\u00e9duction de l'anxi\u00e9t\u00e9,<\/li>\n\n\n\n<li>stabilit\u00e9 \u00e9motionnelle,<\/li>\n\n\n\n<li>r\u00e9gulation de la r\u00e9ponse au stress,<\/li>\n\n\n\n<li>modulation immunoneurale.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">La recherche d\u00e9montre un profil unique : anxiolytique sans s\u00e9dation, immunomodulateur sans suppression et cognitivement neutre \u00e0 l\u00e9g\u00e8rement positif. C'est l'un des candidats les plus prometteurs pour la recherche \u00e0 l'interface entre les neurosciences et l'immunologie.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<div class=\"wp-block-group subject157-references is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group subject157-references is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group subject157-references is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">R\u00e9f\u00e9rences<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Ashmarin et al. (1995). <em>D\u00e9veloppement du Selank et m\u00e9canismes neuropeptidiques.<\/em> Neurosciences et physiologie comportementale.<\/li>\n\n\n\n<li>Andreeva et al. (2005). <em>Selank et r\u00e9gulation de la transmission GABAergique.<\/em> Journal of Neurochemistry.<\/li>\n\n\n\n<li>Myasoedov et al. (2012). <em>Propri\u00e9t\u00e9s immunomodulatrices du Selank.<\/em> Neuroscience Letters.<\/li>\n\n\n\n<li>Dolotov et al. (2008). <em>Effets comportementaux et anxiolytiques du Selank dans des mod\u00e8les animaux.<\/em> Recherche sur le cerveau.<\/li>\n\n\n\n<li>Zhuravleva et al. (2015). <em>Selank dans les troubles anxieux chez l'homme.<\/em> Psychopharmacologie clinique.<\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Revue scientifique du Selank, incluant les m\u00e9canismes GABAergiques, la r\u00e9gulation de la r\u00e9ponse au stress, la modulation des cytokines et les effets observ\u00e9s sur l'anxi\u00e9t\u00e9 et la stabilit\u00e9 \u00e9motionnelle.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[10],"tags":[93,92,95,94,82,96,85,88,91,89,90],"class_list":["post-2166","post","type-post","status-publish","format-standard","hentry","category-journal","tag-ansiedade","tag-citocinas","tag-cognitivo","tag-hpa-axis","tag-melanocortinas","tag-neuroimunologia","tag-neuroprotecao","tag-peptideos-neurologicos","tag-selank","tag-sistema-gaba","tag-stress"],"acf":[],"_links":{"self":[{"href":"https:\/\/subject157.com\/fr\/wp-json\/wp\/v2\/posts\/2166","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subject157.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subject157.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subject157.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/subject157.com\/fr\/wp-json\/wp\/v2\/comments?post=2166"}],"version-history":[{"count":0,"href":"https:\/\/subject157.com\/fr\/wp-json\/wp\/v2\/posts\/2166\/revisions"}],"wp:attachment":[{"href":"https:\/\/subject157.com\/fr\/wp-json\/wp\/v2\/media?parent=2166"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subject157.com\/fr\/wp-json\/wp\/v2\/categories?post=2166"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subject157.com\/fr\/wp-json\/wp\/v2\/tags?post=2166"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}