
{"id":6329,"date":"2012-03-22T16:18:59","date_gmt":"2012-03-22T16:18:59","guid":{"rendered":"http:\/\/ibecbarcelona.eu\/new\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\/"},"modified":"2015-01-07T13:05:14","modified_gmt":"2015-01-07T13:05:14","slug":"la-prueba-del-colchon-las-celulas-tambien-lo-hacen","status":"publish","type":"post","link":"https:\/\/ibecbarcelona.eu\/es\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\/","title":{"rendered":"La prueba del colch\u00f3n: las c\u00e9lulas tambi\u00e9n lo hacen"},"content":{"rendered":"<p class=\"caption\">\u00a0<\/p>\n<p class=\"caption\">A cell spreading on the nanometric pillars<\/p>\n<p>En un art\u00edculo publicado en PNAS esta semana, investigadores del Institut de Bioenginyeria de Catalunya (IBEC) en Barcelona han descubierto un mecanismo crucial por el cual las c\u00e9lulas exploran su medio, que los ha acercado un paso m\u00e1s a entender c\u00f3mo interact\u00faan con lo que las rodea. Este resultado abre puertas a poder predecir o controlar el comportamiento celular.<\/p>\n<p>\u201cC\u00f3mo una c\u00e9lula puede medir la rigidez de su entorno ha sido un misterio desde hace mucho tiempo,\u201d explica Pere Roca-Cusachs, investigador senior en el grupo de Biomec\u00e1nica Celular y Respiratoria del IBEC, que llev\u00f3 a cabo la investigaci\u00f3n con colaboradores de los EEUU. \u201c\u00bfEjerce una fuerza determinada sobre su medio, y entonces mide cu\u00e1nto se mueve, como una persona salta sobre una cama para ver c\u00f3mo cede? \u00bfO bien aplica una determinada distorsi\u00f3n, y entonces mide cu\u00e1nta fuerza requiere? Adem\u00e1s, \u00bfla medici\u00f3n la realiza la c\u00e9lula como un todo, o tiene m\u00faltiples sensores en miniatura que comprueban la rigidez en diferentes puntos?\u201d<\/p>\n<p>Para responder a estas preguntas, los cient\u00edficos colocaron c\u00e9lulas sobre un lecho de pilares nanom\u00e9tricos flexibles. \u201cSiguiendo el movimiento de estos pilares, fuimos capaces de trazar un mapa de c\u00f3mo las c\u00e9lulas ejercen fuerzas en su medio con una resoluci\u00f3n jam\u00e1s obtenida,\u201d explica Pere. \u201cUsando esta t\u00e9cnica, descubrimos que el sensor de rigidez de las c\u00e9lulas es un peque\u00f1o complejo de no m\u00e1s de un micr\u00f3metro (1\/1.000 de mil\u00edmetro) de largo.\u201d Los investigadores tambi\u00e9n vieron que la c\u00e9lula posee m\u00faltiples copias de este complejo, y que todas aplican un desplazamiento constante de 60 nan\u00f3metros \u2013 menos de 1\/10.000 de mil\u00edmetro. Los sensores miden entonces la fuerza aplicada para deducir la rigidez del medio.<\/p>\n<p>\u201cEstos hallazgos representan un paso muy importante hacia la comprensi\u00f3n de c\u00f3mo las c\u00e9lulas interact\u00faan con su medio, un conocimiento crucial para fabricar \u00f3rganos como pulmones o corazones in vitro o tratar enfermedades como el c\u00e1ncer,\u201d dice Pere. <\/p>\n<p>\u00a0<\/p>\n<p>Ghassemi, S., Meacci, G., Liu, S., Gondarenko, A.A., Mathur, A., Roca-Cusachs, P., Sheetz, M.P., and Hone, J. (2012). Cells test substrate rigidity by local contractions on sub-micrometer pillars. PNAS, in press.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" class=\"left size-full wp-image-6324 lazyload\" data-src=\"https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/03\/pere_cell.jpg\" border=\"0\" width=\"329\" height=\"284\" data-srcset=\"https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/03\/pere_cell.jpg 329w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/03\/pere_cell-300x258.jpg 300w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/03\/pere_cell-173x150.jpg 173w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/03\/pere_cell-150x129.jpg 150w\" data-sizes=\"(max-width: 329px) 100vw, 329px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 329px; --smush-placeholder-aspect-ratio: 329\/284;\" \/><\/p>\n<p>Igual que las personas son exigentes a la hora de elegir el colch\u00f3n sobre el que quieren dormir \u2013 que no sea demasiado duro, pero tampoco demasiado blando \u2013 las c\u00e9lulas tambi\u00e9n lo son. De hecho, la rigidez del entorno celular es tan importante que puede determinar si una c\u00e9lula madre se diferenciar\u00e1 en hueso o grasa, por ejemplo \u2013 o si una c\u00e9lula se comportar\u00e1 normalmente o se volver\u00e1 cancerosa.<\/p>\n","protected":false},"author":4,"featured_media":6324,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[97],"tags":[],"post_formats":[],"class_list":["post-6329","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 v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>La prueba del colch\u00f3n: las c\u00e9lulas tambi\u00e9n lo hacen - 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\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La prueba del colch\u00f3n: las c\u00e9lulas tambi\u00e9n lo hacen - Institute for Bioengineering of Catalonia\" \/>\n<meta property=\"og:description\" content=\"Igual que las personas son exigentes a la hora de elegir el colch\u00f3n sobre el que quieren dormir \u2013 que no sea demasiado duro, pero tampoco demasiado blando \u2013 las c\u00e9lulas tambi\u00e9n lo son. De hecho, la rigidez del entorno celular es tan importante que puede determinar si una c\u00e9lula madre se diferenciar\u00e1 en hueso o grasa, por ejemplo \u2013 o si una c\u00e9lula se comportar\u00e1 normalmente o se volver\u00e1 cancerosa.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ibecbarcelona.eu\/es\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\/\" \/>\n<meta property=\"og:site_name\" content=\"Institute for Bioengineering of Catalonia\" \/>\n<meta property=\"article:published_time\" content=\"2012-03-22T16:18:59+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-01-07T13:05:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/03\/pere_cell.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"329\" \/>\n\t<meta property=\"og:image:height\" content=\"284\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"\u00c0ngels L\u00f3pez\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u00c0ngels L\u00f3pez\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/ibecbarcelona.eu\\\/es\\\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ibecbarcelona.eu\\\/es\\\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\\\/\"},\"author\":{\"name\":\"\u00c0ngels L\u00f3pez\",\"@id\":\"https:\\\/\\\/ibecbarcelona.eu\\\/#\\\/schema\\\/person\\\/c212c6b589546130be67986b9290e2b8\"},\"headline\":\"La prueba del colch\u00f3n: las c\u00e9lulas tambi\u00e9n lo hacen\",\"datePublished\":\"2012-03-22T16:18:59+00:00\",\"dateModified\":\"2015-01-07T13:05:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/ibecbarcelona.eu\\\/es\\\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\\\/\"},\"wordCount\":400,\"publisher\":{\"@id\":\"https:\\\/\\\/ibecbarcelona.eu\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/ibecbarcelona.eu\\\/es\\\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ibecbarcelona.eu\\\/wp-content\\\/uploads\\\/2012\\\/03\\\/pere_cell.jpg\",\"articleSection\":[\"Noticias de investigaci\u00f3n\"],\"inLanguage\":\"es\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ibecbarcelona.eu\\\/es\\\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\\\/\",\"url\":\"https:\\\/\\\/ibecbarcelona.eu\\\/es\\\/la-prueba-del-colchon-las-celulas-tambien-lo-hacen\\\/\",\"name\":\"La prueba del colch\u00f3n: las c\u00e9lulas tambi\u00e9n lo hacen - 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