
{"id":6216,"date":"2012-01-02T09:34:22","date_gmt":"2012-01-02T09:34:22","guid":{"rendered":"http:\/\/ibecbarcelona.eu\/new\/entenent-les-celmlules-entremaliades\/"},"modified":"2015-01-08T16:48:03","modified_gmt":"2015-01-08T16:48:03","slug":"entenent-les-celmlules-entremaliades","status":"publish","type":"post","link":"https:\/\/ibecbarcelona.eu\/ca\/entenent-les-celmlules-entremaliades\/","title":{"rendered":"Entenent les c\u00e8l\u00b7lules que es porten malament"},"content":{"rendered":"\n<p>Algunes parts del cos hum\u00e0 es renoven al llarg de la vida. Si pogu\u00e9ssim controlar els seus mecanismes o propietats regeneratius i aplicar-les a les parts que no es renoven, far\u00edem grans passes vers assolir noves ter\u00e0pies per a moltes lesions i malalties. El sistema olfactiu \u00e9s una de les \u00e0rees que es pot renovar, i ho fa fent servir c\u00e8l\u00b7lules olfactives embolcallants (Olfactive Ensheathing Cells &#8211; OECs) per a guiar axons de formaci\u00f3 recent &#8211; projeccions llargues i primes de c\u00e8l\u00b7lules nervioses &#8211; envers el sistema nervi\u00f3s central del cos.<\/p>\n<p>Com a resultat, les OECs ja s&#8217;han transplantat per veure si aquesta capacitat tamb\u00e9 funciona per a promoure la regeneraci\u00f3 axonal en lesions de la m\u00e8dula espinal; per\u00f2 en aquest mitj\u00e0, els investigadors s&#8217;han trobat amb un obstacle. Les OECs necessiten moure&#8217;s o migrar homog\u00e8niament i cohesiva per poder dur a terme laseva tasca de guiar els axons, per\u00f2 factors en la zona espinal afecten el seu comportament i fan que es moguin individualment o en la direcci\u00f3 equivocada.<\/p>\n<p>Ara, en un estudi publicat aquesta setmana a la revista Cellular and  Molecular Life Sciences, investigadors de l&#8217;IBEC demostren que certes prote\u00efnes s\u00f3n responsables de bloquejar la migraci\u00f3 correcta de les OECs a la m\u00e8dula espinal, impedint-los-hi aix\u00ed de dur a terme la important tasca de guiar els joves axons. Si aquestes prote\u00efnes es pogu\u00e9ssin inhibir, les OECs podrien actuar de la forma &#8216;correcta&#8217;, com fan al sistema olfactiu, i ajudar al creixement axonal.<\/p>\n<p>&#8220;Vam agafar OECs de ratol\u00ed, i vam fer servir microscopia de seguiment cel\u00b7lular i de for\u00e7a de tracci\u00f3 per analitzar la migraci\u00f3 de les OECs i les seves propietats mec\u00e0niques sobre la mielina, un material a\u00efllant del voltant dels axons del cervell i el sistema nervi\u00f3s central,&#8221; explica en Jos\u00e9 Antonio del R\u00edo, un dels responsables de grup de l&#8217;IBEC. &#8220;Els resultatsm ostren que aquestes c\u00e8l\u00b7lules expressen tots els components de l&#8217;anomenat complex receptor Nogo, una combinaci\u00f3 de receptors que la mielina fa servir per a inhibir el moviment de les OECs, i que inhibint el Nogo amb una prote\u00efna anomenada NEP1-40 torna a augmentar la seva capacitat migrat\u00f2ria.&#8221;<\/p>\n<p>Aquests resultats, que provenen d&#8217;un esfor\u00e7 interdisciplinar que inclou l&#8217;expertesa del grup\u00a0Molecular and Cellular  Neurobiotechnology  del Prof. del R\u00edo, els coneixements en migraci\u00f3 cel\u00b7lular del grup Integrative Cell and Tissue Dynamics de l&#8217;IBEC, i la tecnologia aportada pel grup Nanobioengineering de l&#8217;institut, ens d\u00f3na eines per veure com es podria desenvolupar una recerca sobre els OECs com a ter\u00e0pia potencial en patologies medulars i neuronals. &#8220;Suggereix que cal una estrat\u00e8gia per anul\u00b7lar l&#8217;acci\u00f3 inhibidora de la mielina que es basi en les c\u00e8l\u00b7lules per potenciar la migraci\u00f3 i, aix\u00ed, potenciar el rebrot d&#8217;axons.&#8221; diu el Prof. del R\u00edo.<\/p>\n<p> Nocentini S, Reginensi D, Garcia S, Carulla P, Moreno-Flores MT,  Wandosell F, Trepat X, Bribian A, Del R\u00edo JA. (2011). <a href=\"http:\/\/www.springerlink.com\/content\/x3077h60214r2l6g\/\">Myelin-associated  proteins block the migration of olfactory ensheathing cells: an in  vitro study using single-cell tracking and traction force microscopy.<\/a> Cell Mol Life Sci, in press<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Igual que en una guarderia plena de criatures entremaliades, no es pot esperar que les c\u00e8l\u00b7lules que contribueixen als processos crucials del cos facin el que vols o el que esperes. Ara, investigadors de l&#8217;IBEC han fet un important descobriment que podria contribuir al desenvolupament de ter\u00e0pies per a malalties espinals i neurals: han descobert qu\u00e8 es exactament el que fa que algunes c\u00e8l\u00b7lules es portin malament en determinades circumst\u00e0ncies.<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96],"tags":[],"post_formats":[],"class_list":["post-6216","post","type-post","status-publish","format-standard","hentry","category-noticies-de-recerca"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Entenent les c\u00e8l\u00b7lules que es porten malament - Institute for Bioengineering of Catalonia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ibecbarcelona.eu\/ca\/entenent-les-celmlules-entremaliades\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Entenent les c\u00e8l\u00b7lules que es porten malament - Institute for Bioengineering of Catalonia\" \/>\n<meta property=\"og:description\" content=\"Igual que en una guarderia plena de criatures entremaliades, no es pot esperar que les c\u00e8l\u00b7lules que contribueixen als processos crucials del cos facin el que vols o el que esperes. 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