{"id":7470,"date":"2013-06-26T09:37:34","date_gmt":"2013-06-26T09:37:34","guid":{"rendered":"http:\/\/ibecbarcelona.eu\/new\/el-descobriment-inesperat-de-la-manera-en-que-es-mouen-les-celmlules-podria-impulsar-el-coneixement-de-malalties-complexes\/"},"modified":"2015-01-08T10:10:34","modified_gmt":"2015-01-08T10:10:34","slug":"el-descobriment-inesperat-de-la-manera-en-que-es-mouen-les-celmlules-podria-impulsar-el-coneixement-de-malalties-complexes","status":"publish","type":"post","link":"https:\/\/ibecbarcelona.eu\/ca\/el-descobriment-inesperat-de-la-manera-en-que-es-mouen-les-celmlules-podria-impulsar-el-coneixement-de-malalties-complexes\/","title":{"rendered":"El descobriment inesperat de la manera en qu\u00e8 es mouen les c\u00e8l\u00b7lules podria impulsar el coneixement de malalties complexes"},"content":{"rendered":"<p>\u201cVol\u00edem entendre la relaci\u00f3 b\u00e0sica entre els moviments cel\u00b7lulars col\u00b7lectius i les forces cel\u00b7lulars col\u00b7lectives, com ara les que es poden produir durant la invasi\u00f3 cel\u00b7lular al c\u00e0ncer, per exemple. Per\u00f2, durant la recerca, vam trobar-nos amb un fenomen totalment inesperat\u201d, explica l&#8217;autor s\u00e8nior Jeffrey Fredberg, professor de bioenginyeria i fisiologia al Departament de Salut Mediambiental de l&#8217;HSPH i coinvestigador s\u00e8nior del laboratori de Din\u00e0mica Cel\u00b7lular Integrativa i Molecular de l&#8217;HSPH.<\/p>\n<p>Bi\u00f2legs, enginyers i f\u00edsics de l&#8217;HSPH i l&#8217;IBEC van col\u00b7laborar per aportar claredat sobre el moviment cel\u00b7lular col\u00b7lectiu, que juga un paper clau en funcions com ara guariment de ferides, desenvolupament d&#8217;\u00f2rgans i creixement de tumors. Mitjan\u00e7ant una t\u00e8cnica anomenada microsc\u00f2pia d&#8217;estr\u00e8s en monocapa \u2014que ells mateixos han inventat\u2014 van mesurar les forces que afecten una \u00fanica capa de c\u00e8l\u00b7lules epitelials en moviment. Van examinar la velocitat i la direcci\u00f3 de les c\u00e8l\u00b7lules aix\u00ed com la tracci\u00f3, \u00e9s a dir, com algunes c\u00e8l\u00b7lules tiren d&#8217;elles mateixes o s&#8217;empenyen i, en conseq\u00fc\u00e8ncia, forcen un moviment col\u00b7lectiu.<\/p>\n<p>Tal com esperaven, els investigadors van observar que quan se situava un obstacle al cam\u00ed d&#8217;una capa de c\u00e8l\u00b7lules en moviment d&#8217;avan\u00e7ament \u2014en aquest cas, un gel que no proporciona tracci\u00f3\u2014 les c\u00e8l\u00b7lules es mouen al voltant de l&#8217;obstacle, cenyint-se fermament als contorns del gel a mesura que van passant. Tanmateix, els investigadors tamb\u00e9 van observar una cosa sorprenent: les c\u00e8l\u00b7lules, a m\u00e9s de moure&#8217;s cap endavant, continuen intentant bellugar-se cap al gel, com si volguessin omplir l&#8217;espai buit. Els investigadors van anomenar aquest moviment \u201ckenotaxis\u201d, del grec \u201ckeno\u201d (buit) i \u201ctaxis\u201d (distribuci\u00f3), perqu\u00e8 sembla que les c\u00e8l\u00b7lules intentin omplir un buit.<\/p>\n<p>&#8220;Aquesta nova troballa ens pot ajudar a comprendre millor la conducta de les c\u00e8l\u00b7lules \u2014i avaluar f\u00e0rmacs que poden influir en aquesta conducta\u2014 en diverses malalties complexes, com c\u00e0ncer, asma, malalties cardiovasculars, alteracions del desenvolupament i glaucoma&#8221;, explica Xavier Trepat, coautor de l&#8217;article i investigador ICREA de l&#8217;Institut de Bioenginyeria de Catalunya. &#8220;La troballa tamb\u00e9 podria ajudar en enginyeria de teixits i medicina regenerativa, perqu\u00e8 totes dues disciplines es basen en la migraci\u00f3 cel\u00b7lular&#8221;.<\/p>\n<p>Per exemple, en carcinomes, que representen el 90% de tots els c\u00e0ncers i impliquen c\u00e8l\u00b7lules epitelials, la nova informaci\u00f3 sobre el moviment cel\u00b7lular podria millorar el coneixement de com migren les c\u00e8l\u00b7lules cancer\u00edgenes pel cos. La investigaci\u00f3 de l&#8217;asma tamb\u00e9 podria assolir un nou impuls, perqu\u00e8 els cient\u00edfics creuen que la migraci\u00f3 de les c\u00e8l\u00b7lules epitelials malmeses als pulmons est\u00e0 implicada en l&#8217;estrenyiment de la via respirat\u00f2ria causat per la malaltia.<\/p>\n<p>\u201cLa kenotaxis \u00e9s una propietat del col\u00b7lectiu cel\u00b7lular, no de la c\u00e8l\u00b7lula individual\u201d,<span style=\"color: #20497d;\"> <\/span> explica Jae Hun Kim, primer autor de l&#8217;estudi. \u201cEns va semblar sorprenent la manera en qu\u00e8 el col\u00b7lectiu cel\u00b7lular es pot organitzar per tirar de si mateix sistem\u00e0ticament en una direcci\u00f3 i, al mateix temps, despla\u00e7ar-se sistem\u00e0ticament en una direcci\u00f3 totalment diferent\u201d.<\/p>\n<p>Jae Hun Kim, Xavier Serra-Picamal, Dhananjay T. Tambe, Enhua H. Zhou, Chan Young Park, Monirosadat Sadati, Jin-Ah Park, Ramaswamy Krishnan, Bomi Gweon, Emil Millet, James P. Butler, Xavier Trepat, Jeffrey J. Fredberg (2013). <span style=\"color: #000000;\"><a href=\"http:\/\/www.nature.com\/nmat\/journal\/vaop\/ncurrent\/full\/nmat3689.html\" target=\"_blank\">\u201cPropulsion and navigation within the advancing monolayer sheet&#8221;<\/a>,<\/span> <em>Nature Materials<\/em>, avan\u00e7ament de l&#8217;edici\u00f3 en l\u00ednia.<\/p>\n<p>&#8212;<\/p>\n<p><strong>&gt;&gt; IBEC in the Media: <\/strong><\/p>\n<p><a href=\"http:\/\/biotecnologia.diariomedico.com\/2013\/06\/24\/area-cientifica\/especialidades\/biotecnologia\/investigacion\/movimiento-celulas-explicaria-diversas-patologias\" target=\"_blank\">http:\/\/biotecnologia.diariomedico.com\/2013\/06\/24\/area-cientifica\/especialidades\/biotecnologia\/investigacion\/movimiento-celulas-explicaria-diversas-patologias<\/a><\/p>\n<p><a href=\"http:\/\/eldia.es\/2011-05-23\/SOCIEDAD\/9-Cientificos-IBEC-Harvard-desvelan-nuevo-principio-migracion-celular.htm\" target=\"_blank\">http:\/\/eldia.es\/2011-05-23\/SOCIEDAD\/9-Cientificos-IBEC-Harvard-desvelan-nuevo-principio-migracion-celular.htm<\/a><\/p>\n<p><a href=\"http:\/\/www.abc.es\/agencias\/noticia.asp?noticia=826782\" target=\"_blank\">http:\/\/www.abc.es\/agencias\/noticia.asp?noticia=826782<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" class=\"left size-full wp-image-7466 lazyload\" data-src=\"https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2013\/06\/natmat2web.jpg\" border=\"0\" width=\"339\" height=\"210\" data-srcset=\"https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2013\/06\/natmat2web.jpg 339w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2013\/06\/natmat2web-300x185.jpg 300w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2013\/06\/natmat2web-242x150.jpg 242w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2013\/06\/natmat2web-150x92.jpg 150w\" data-sizes=\"(max-width: 339px) 100vw, 339px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 339px; --smush-placeholder-aspect-ratio: 339\/210;\" \/> <\/p>\n<h3><strong>Un nou descobriment sobre com es mouen las c\u00e8l\u00b7lules dins del cos podria proporcionar als cient\u00edfics informaci\u00f3 decisiva sobre mecanismes de malalties com la disseminaci\u00f3 del c\u00e0ncer o l&#8217;obstrucci\u00f3 de les vies respirat\u00f2ries causada per l&#8217;asma.<\/strong><\/h3>\n<p>Sota la direcci\u00f3 d&#8217;investigadors de l&#8217;Institut de Bioenginyeria de Catalunya (IBEC) i de l&#8217;Escola de Salut P\u00fablica de Harvard (HSPH), els cient\u00edfics han descobert que les c\u00e8l\u00b7lules epitelials \u2014del tipus de les que formen una barrera entre l&#8217;interior i l&#8217;exterior del cos, com les c\u00e8l\u00b7lules de la pell\u2014 es mouen en grup, impulsades per forces tant des del seu interior com des de les c\u00e8l\u00b7lules properes per omplir qualsevol espai buit que troben. L&#8217;estudi es publica aquesta setmana en un avan\u00e7ament de l&#8217;edici\u00f3 en l\u00ednia de <em>Nature Materials<\/em>.<\/p>\n","protected":false},"author":4,"featured_media":7466,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[96],"tags":[],"post_formats":[],"class_list":["post-7470","post","type-post","status-publish","format-standard","has-post-thumbnail","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>El descobriment inesperat de la manera en qu\u00e8 es mouen les c\u00e8l\u00b7lules podria impulsar el coneixement de malalties complexes - 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\/el-descobriment-inesperat-de-la-manera-en-que-es-mouen-les-celmlules-podria-impulsar-el-coneixement-de-malalties-complexes\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"El descobriment inesperat de la manera en qu\u00e8 es mouen les c\u00e8l\u00b7lules podria impulsar el coneixement de malalties complexes - Institute for Bioengineering of Catalonia\" \/>\n<meta property=\"og:description\" content=\"Un nou descobriment sobre com es mouen las c\u00e8l\u00b7lules dins del cos podria proporcionar als cient\u00edfics informaci\u00f3 decisiva sobre mecanismes de malalties com la disseminaci\u00f3 del c\u00e0ncer o l&#039;obstrucci\u00f3 de les vies respirat\u00f2ries causada per l&#039;asma. Sota la direcci\u00f3 d&#039;investigadors de l&#039;Institut de Bioenginyeria de Catalunya (IBEC) i de l&#039;Escola de Salut P\u00fablica de Harvard (HSPH), els cient\u00edfics han descobert que les c\u00e8l\u00b7lules epitelials \u2014del tipus de les que formen una barrera entre l&#039;interior i l&#039;exterior del cos, com les c\u00e8l\u00b7lules de la pell\u2014 es mouen en grup, impulsades per forces tant des del seu interior com des de les c\u00e8l\u00b7lules properes per omplir qualsevol espai buit que troben. 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Sota la direcci\u00f3 d'investigadors de l'Institut de Bioenginyeria de Catalunya (IBEC) i de l'Escola de Salut P\u00fablica de Harvard (HSPH), els cient\u00edfics han descobert que les c\u00e8l\u00b7lules epitelials \u2014del tipus de les que formen una barrera entre l'interior i l'exterior del cos, com les c\u00e8l\u00b7lules de la pell\u2014 es mouen en grup, impulsades per forces tant des del seu interior com des de les c\u00e8l\u00b7lules properes per omplir qualsevol espai buit que troben. 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