
{"id":5091,"date":"2009-06-17T02:00:00","date_gmt":"2009-06-17T02:00:00","guid":{"rendered":"http:\/\/ibecbarcelona.eu\/new\/investigadors-de-libec-en-portada-de-small-2\/"},"modified":"2015-01-07T15:44:48","modified_gmt":"2015-01-07T15:44:48","slug":"investigadors-de-libec-en-portada-de-small-2","status":"publish","type":"post","link":"https:\/\/ibecbarcelona.eu\/ca\/investigadors-de-libec-en-portada-de-small-2\/","title":{"rendered":"Investigadors de l&#8217;IBEC en portada de Small"},"content":{"rendered":"<p> La imatge de portada de Small ha estat espec\u00edficament dissenyada per a aquest n\u00famero a sol\u2022licitud dels editors de la revista despr\u00e9s de les cr\u00edtiques excel\u2022lents rebudes per l\u2019article. Aquest article, sota el t\u00edtol Dynamic Re-organization of Individual Adhesion Nanoclusters in Living Cells by Ligand-Patterned Surfaces, tracta l\u2019\u00fas de superf\u00edcies model per estudiar la diferent reorganitzaci\u00f3, tant en temps com en espai, dels receptors del sistema immunitari quan es topen amb altres lligands o mol\u00e8cules. <\/p>\n<p>A fi i efecte d\u2019entendre aquest treball en detall \u00e9s important explicar, en primer lloc, que les c\u00e8l\u2022lules es comuniquen entre elles i amb l\u2019exterior mitjan\u00e7ant una mir\u00edada de receptors localitzats a la seva membrana. Els darrers anys s\u2019ha constatat que les funcions cel\u2022lulars particulars es determinen no nom\u00e9s per l\u2019expressi\u00f3 d\u2019aquests receptors sin\u00f3 tamb\u00e9, i de manera especialment important, per la manera com s\u2019organitzen a la membrana biol\u00f2gica, tant a nivell d\u2019espai com de temps.<\/p>\n<p>Aix\u00ed, es considera que el reconeixement de pat\u00f2gens per les c\u00e8l\u2022lules del sistema immunol\u00f2gic o la senyalitzaci\u00f3 entre c\u00e8l\u2022lules per combatre infeccions es produeix a trav\u00e9s d\u2019una disposici\u00f3 sincronitzada dels receptors, similar a com es disposen les tropes al camp de batalla per maximitzar la seva for\u00e7a col\u2022lectiva, i es dispersen r\u00e0pidament un cop la batalla acabada.<\/p>\n<p>De moment se sap molt poc sobre la forma com les c\u00e8l\u2022lules s\u2019organitzen entre elles at\u00e8s que aquest proc\u00e9s es produeix a una escala massa petita com per ser observada amb microscopis convencionals. La contribuci\u00f3 d\u2019aquest grup de recerca a aquest camp consisteix a haver desenvolupat una plataforma simple i vers\u00e0til que pugui utilitzar-se per crear els anomenats models de lligand. Les c\u00e8l\u2022lules se sembren a continuaci\u00f3 en aquests models i, utilitzant una t\u00e8cnica \u00f2ptica d\u2019alta sensibilitat desenvolupada al mateix grup, els investigadors observen com els receptors naturals a la c\u00e8l\u2022lula reaccionen a altres receptors col\u2022locats al model.<\/p>\n<p>Aquest treball demostra l\u2019exist\u00e8ncia d\u2019una complexa associaci\u00f3 entre l\u2019organitzaci\u00f3 de la membrana biol\u00f2gica i la funci\u00f3 cel\u2022lular. Comprendre com els receptors s\u2019organitzen a la membrana pot ajudar a protegir el sistema immunitari contra infeccions per virus i pat\u00f2gens i, si escaigu\u00e9s, a desenvolupar ter\u00e0pies per tractar malalties immunit\u00e0ries de manera selectiva i amb m\u00e9s efic\u00e0cia.<\/p>\n<p>El treball publicat a la revista Small \u00e9s el resultat d\u2019una col\u2022laboraci\u00f3 interdisciplin\u00e0ria entre l\u2019IBEC i CIBER-bbn i immun\u00f2legs del NCMLS.<\/p>\n<p>Small \u00e9s una de les revistes m\u00e9s prestigioses al camp de la nanoci\u00e8ncia, situada en tercera posici\u00f3 despr\u00e9s de Nature Nanotechnology i Nano Letters.<\/p>\n<p><a href=\"..\/images\/stories\/SMALL%20COVER%20PDF.pdf\">SMALL COVER PDF.pdf<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A la primera portada\u00a0d\u2019aquest mes d\u2019una de les millors revistes de nanoci\u00e8ncia, plasma la feina de diversos investigadors de l\u2019IBEC. La\u00a0revista Small (Volum 5. N\u00fam. 11 \u2013 5 de juny de 2009) dedica la seva portada a l\u2019article publicat per quatre investigadors del grup de bionanofot\u00f2nica de l\u2019IBEC, dirigit per la Dra. Mar\u00eda Garc\u00eda-Parajo, i dos cient\u00edfics del Nijmegen Center for Molecular Life Sciences (NCMLS), Holanda.<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[98],"tags":[],"post_formats":[],"class_list":["post-5091","post","type-post","status-publish","format-standard","hentry","category-noticies-institucionals"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Investigadors de l&#039;IBEC en portada de Small - 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\/investigadors-de-libec-en-portada-de-small-2\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Investigadors de l&#039;IBEC en portada de Small - Institute for Bioengineering of Catalonia\" \/>\n<meta property=\"og:description\" content=\"A la primera portada\u00a0d\u2019aquest mes d\u2019una de les millors revistes de nanoci\u00e8ncia, plasma la feina de diversos investigadors de l\u2019IBEC. 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