{"id":58505,"date":"2018-04-19T14:57:56","date_gmt":"2018-04-19T12:57:56","guid":{"rendered":"http:\/\/ibecbarcelona.eu\/?p=58505"},"modified":"2018-04-23T09:36:41","modified_gmt":"2018-04-23T07:36:41","slug":"las-celulas-se-comunican-cambiando-su-entorno","status":"publish","type":"post","link":"https:\/\/ibecbarcelona.eu\/es\/las-celulas-se-comunican-cambiando-su-entorno\/","title":{"rendered":"Las c\u00e9lulas se comunican cambiando su entorno"},"content":{"rendered":"
Contracci\u00f3n celular causando un gradiente de rigidez en una matriz extracelular 3D. En azul, c\u00e9lula MDA-MB-231. En verde, matriz de col\u00e1geno.<\/h6>\n

Durante su estancia de investigaci\u00f3n en el laboratorio de mecanobiolog\u00eda de Roger Kamm en el MIT en el periodo 2015-2017, el investigador postdoctoral del IBEC Andrea Malandrino estuvo involucrado en el desarrollo de un m\u00e9todo, llamado Microscop\u00eda de Inferencia de Estr\u00e9s no Lineal (NSIM, del ingl\u00e9s Nonlinear Stress Inference Microscopy<\/em>), que revela en 3D las tensiones mec\u00e1nicas que las c\u00e9lulas causan a la MEC bas\u00e1ndose en la medici\u00f3n local de su rigidez.<\/p>\n

\u00abHemos observado que la contracci\u00f3n de las c\u00e9lulas causa el endurecimiento local de la MEC\u00bb, dice Andrea. \u00abAdem\u00e1s, estos cambios locales en la rigided se transmiten recorriendo distancias que van m\u00e1s all\u00e1 del \u00e1rea de la c\u00e9lula original. Esto sugiere un mecanismo concreto a trav\u00e9s del cual las c\u00e9lulas pueden controlar su microambiente y comunicarse mec\u00e1nicamente entre s\u00ed, lo que podr\u00eda explicar fen\u00f3menos como la durotaxis, un tipo de migraci\u00f3n celular\u00bb.<\/p>\n

La comprensi\u00f3n de este mecanismo podr\u00eda conducir a esclarecer fen\u00f3menos como el endurecimiento de los tejidos tumorales o las enfermedades fibr\u00f3ticas.<\/p>\n

—<\/p>\n

Yu Long Han, Pierre Ronceray, Guoqiang Xu, Andrea Malandrino, Roger Kamm, Martin Lenz, Chase P. Broedersz and Ming Guo (2018). Cell contraction induces long-ranged stress stiffening in the extracellular matrix<\/a>. PNAS<\/em>, publicaci\u00f3n en l\u00ednea previa a la publicaci\u00f3n impresa.<\/p>\n","protected":false},"excerpt":{"rendered":"

\"\"Los investigadores del IBEC y del MIT han demostrado que las c\u00e9lulas pueden usar su entorno para comunicarse mec\u00e1nicamente entre s\u00ed dentro de los tejidos. Es como cuando un soldado del ej\u00e9rcito tensa las cuerdas de una red de entrenamiento para que su compa\u00f1ero pueda ascender con firmeza.<\/h3>\n

Para abastecer nuestros \u00f3rganos y tejidos, las c\u00e9lulas necesitan detectar y responder constantemente a los est\u00edmulos mec\u00e1nicos de su entorno. En general, las c\u00e9lulas que componen nuestro organismo est\u00e1n inmersas en una matriz extracelular (MEC), un biopol\u00edmero hecho de prote\u00ednas y glicoprote\u00ednas – como el col\u00e1geno o la fibrina. Esta MEC proporciona a las c\u00e9lulas una forma de interactuar con otras c\u00e9lulas, obtener nutrientes, eliminar residuos y, finalmente, formar tejidos integrales y funcionales.<\/p>\n

Cuando las c\u00e9lulas se mueven, dividen o diferencian, la MEC juega un papel importante en la funci\u00f3n celular, por lo que es vital entender con detalle las interacciones c\u00e9lula-matriz. Sin embargo, se desconocen muchos detalles sobre c\u00f3mo las propias c\u00e9lulas afectan a la mec\u00e1nica de esta matriz circundante. No solo eso, sino que los cambios en la MEC desencadenados por las c\u00e9lulas tambi\u00e9n pueden propagarse, afectando a sus c\u00e9lulas vecinas.<\/p>\n","protected":false},"author":4,"featured_media":58466,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[97],"tags":[],"post_formats":[],"class_list":["post-58505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias-de-investigacion"],"yoast_head":"\nLas c\u00e9lulas se comunican cambiando su entorno - 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\/las-celulas-se-comunican-cambiando-su-entorno\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Las c\u00e9lulas se comunican cambiando su entorno - Institute for Bioengineering of Catalonia\" \/>\n<meta property=\"og:description\" content=\"Los investigadores del IBEC y del MIT han demostrado que las c\u00e9lulas pueden usar su entorno para comunicarse mec\u00e1nicamente entre s\u00ed dentro de los tejidos. Es como cuando un soldado del ej\u00e9rcito tensa las cuerdas de una red de entrenamiento para que su compa\u00f1ero pueda ascender con firmeza. Para abastecer nuestros \u00f3rganos y tejidos, las c\u00e9lulas necesitan detectar y responder constantemente a los est\u00edmulos mec\u00e1nicos de su entorno. En general, las c\u00e9lulas que componen nuestro organismo est\u00e1n inmersas en una matriz extracelular (MEC), un biopol\u00edmero hecho de prote\u00ednas y glicoprote\u00ednas - como el col\u00e1geno o la fibrina. Esta MEC proporciona a las c\u00e9lulas una forma de interactuar con otras c\u00e9lulas, obtener nutrientes, eliminar residuos y, finalmente, formar tejidos integrales y funcionales. Cuando las c\u00e9lulas se mueven, dividen o diferencian, la MEC juega un papel importante en la funci\u00f3n celular, por lo que es vital entender con detalle las interacciones c\u00e9lula-matriz. Sin embargo, se desconocen muchos detalles sobre c\u00f3mo las propias c\u00e9lulas afectan a la mec\u00e1nica de esta matriz circundante. 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