{"id":31105,"date":"2017-07-28T13:28:49","date_gmt":"2017-07-28T11:28:49","guid":{"rendered":"http:\/\/ibecbarcelona.eu\/?p=31105\/"},"modified":"2017-09-05T10:22:26","modified_gmt":"2017-09-05T08:22:26","slug":"un-nuevo-modelo-arroja-luz-sobre-la-migracion-celular","status":"publish","type":"post","link":"https:\/\/ibecbarcelona.eu\/es\/un-nuevo-modelo-arroja-luz-sobre-la-migracion-celular\/","title":{"rendered":"Un nuevo modelo arroja luz sobre la migraci\u00f3n celular"},"content":{"rendered":"<h6 class=\"caption\" style=\"float: left; width: 30%; padding: 0px 30px 10px 0px;\">Estas im\u00e1genes muestran col\u00e1geno (gris) y fibronectina (rojo) en las matrices dise\u00f1adas por el grupo Nanobioengineering del IBEC. La fila superior muestra matrices desordenadas (isotr\u00f3picas) y la fila inferior alineadas (anisotr\u00f3picas), con flechas blancas indicando la orientaci\u00f3n de las fibras. El color rosa muestra las im\u00e1genes fusionadas y los \u00faltimos paneles muestran un an\u00e1lisis de correlaci\u00f3n cruzada.<\/h6>\n<p>saludables como el desarrollo embrionario y la cicatrizaci\u00f3n o la progresi\u00f3n del c\u00e1ncer en la enfermedad.<\/p>\n<p>A d\u00eda de hoy se sabe que las propiedades f\u00edsicas de la matriz extracelular (MEC), incluyendo su topolog\u00eda, propiedades mec\u00e1nicas y composici\u00f3n molecular, son se\u00f1ales f\u00edsicas que se sinergizan con comportamientos celulares como la contracci\u00f3n de la actomiosina &#8211; que genera estr\u00e9s mec\u00e1nico en las c\u00e9lulas animales &#8211; para regular la migraci\u00f3n celular.<\/p>\n<p>Sin embargo, es un desaf\u00edo estudiar estas sinergias, porque mientras que la topolog\u00eda de la matriz es dif\u00edcil de controlar <em>in vivo<\/em>, los modelos dise\u00f1ados <em>in vitro<\/em> carecen de la complejidad bioqu\u00edmica y f\u00edsica del entorno celular.<\/p>\n<p>Los investigadores necesitaban encontrar un modelo de MEC in vitro capaz de reproducir de manera fiel la interacci\u00f3n entre las propiedades f\u00edsicas de la matriz con los factores moleculares que se encuentran en el cuerpo.<\/p>\n<p>Trabajando en colaboraci\u00f3n con colegas del Laboratorio Ib\u00e9rico Internacional de Nanotecnolog\u00eda (INL) en Braga, Portugal, el <a href=\"https:\/\/ibecbarcelona.eu\/es\/nanobioengineering\" target=\"_blank\" rel=\"noopener\">grupo de investigaci\u00f3n del director del IBEC <\/a> sembr\u00f3 c\u00e9lulas sobre matrices 3D polarizadas que imitaban las caracter\u00edsticas estructurales y bioqu\u00edmicas de la matriz extracelular in vivo, incluyendo su topolog\u00eda, que era anisotr\u00f3pica (alineada) o isotr\u00f3pica (desordenada). Los investigadores encontraron que la direcci\u00f3n del movimiento celular, pero no la distancia recorrida, persiste cuando las matrices manipuladas son topol\u00f3gicamente anisotr\u00f3picas, pero cuando no lo son &#8211; cuando son isotr\u00f3picas &#8211; la direccionalidad celular es independiente de la contractilidad de la actomiosina.<\/p>\n<p>Por lo tanto podr\u00edan concluir que, para el movimiento celular dirigido, se requiere una sinergia de la contractilidad de la actomiosina con la anisotrop\u00eda del entorno celular. Tambi\u00e9n se\u00f1alaron que la anisotrop\u00eda contrarresta la falta de fuerzas dirigidas por la actomiosina para mejorar la capacidad de las c\u00e9lulas para moverse o invadir, y para estabilizar su direccionalidad.<\/p>\n<p>Estos avances respecto a los mecanismos biof\u00edsicos de la migraci\u00f3n celular dirigida en entornos de tipo nativo pueden contribuir a la comprensi\u00f3n de la motilidad direccional de las c\u00e9lulas, esencial en procesos como el c\u00e1ncer o el desarrollo embrionario.<\/p>\n<p>&#8212;<\/p>\n<p><strong><em>Art\u00edculo referenciado:<\/em> <\/strong>David Caballero, Lucas Palacios, Paulo P. Freitas, Josep Samitier (2017). \u00ab<a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/adfm.201702322\/full\" target=\"_blank\" rel=\"noopener\">An Interplay Between Matrix Anisotropy and Actomyosin Contractility Regulates 3D Directed Cell Migration<\/a>\u00ab. <em>Advanced Functional Materials<\/em>, disponible en epub.<\/p>\n<p>&#8212;<br \/>\n<em>Este trabajo ha sido financiado por la beca postdoctoral Beatriu de Pin\u00f3s (COFUND MSCA) de David Caballero en el IBEC y por el programa \u00abExplora Ciencia\u00bb del MINECO.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<h3><img decoding=\"async\" data-src=\"https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2017\/07\/caballero2.jpg\" alt=\"\" width=\"534\" height=\"295\" class=\"left size-full wp-image-30801 lazyload\" data-srcset=\"https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2017\/07\/caballero2.jpg 534w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2017\/07\/caballero2-300x166.jpg 300w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2017\/07\/caballero2-230x127.jpg 230w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2017\/07\/caballero2-150x83.jpg 150w\" data-sizes=\"(max-width: 534px) 100vw, 534px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 534px; --smush-placeholder-aspect-ratio: 534\/295;\" \/>El grupo Nanobioengineering del IBEC contribuye al campo de la mecanobiolog\u00eda creando un modelo <em> in vitro <\/em> de matriz extracelular que muestra c\u00f3mo interacciona este entorno con la actomiosina &#8211; la proteina que permite a las c\u00e9lulas contraerse para dirigir su migraci\u00f3n. <\/h3>\n<p>El art\u00edculo, publicado en <em>Advanced Functional Materials<\/em> esta semana, arroja luz sobre la migraci\u00f3n celular, que es esencial para muchos procesos biol\u00f3gicos <\/p>\n","protected":false},"author":4,"featured_media":30801,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[97],"tags":[],"post_formats":[],"class_list":["post-31105","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias-de-investigacion"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Un nuevo modelo arroja luz sobre la migraci\u00f3n celular - 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\/es\/un-nuevo-modelo-arroja-luz-sobre-la-migracion-celular\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Un nuevo modelo arroja luz sobre la migraci\u00f3n celular - Institute for Bioengineering of Catalonia\" \/>\n<meta property=\"og:description\" content=\"El grupo Nanobioengineering del IBEC contribuye al campo de la mecanobiolog\u00eda creando un modelo in vitro de matriz extracelular que muestra c\u00f3mo interacciona este entorno con la actomiosina - la proteina que permite a las c\u00e9lulas contraerse para dirigir su migraci\u00f3n.    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