
{"id":6537,"date":"2012-07-09T07:57:19","date_gmt":"2012-07-09T07:57:19","guid":{"rendered":"http:\/\/ibecbarcelona.eu\/new\/descubierto-un-nuevo-tipo-de-onda-en-tejidos-vivos\/"},"modified":"2015-01-07T13:53:35","modified_gmt":"2015-01-07T13:53:35","slug":"descubierto-un-nuevo-tipo-de-onda-en-tejidos-vivos","status":"publish","type":"post","link":"https:\/\/ibecbarcelona.eu\/es\/descubierto-un-nuevo-tipo-de-onda-en-tejidos-vivos\/","title":{"rendered":"Descubierto un nuevo tipo de onda en tejidos vivos"},"content":{"rendered":"<\/h3>\n<p>Cuando un organismo desarrolla su forma o cierra heridas, o cuando los tumores metastatizan, las c\u00e9lulas llevan a cabo grandes movimientos colectivos. A pesar de llevar d\u00e9cadas investigando, los mecanismos que controlan estos movimientos siguen sin comprenderse bien. Ahora, cient\u00edficos del Instituto de Bioingenier\u00eda de Catalunya (IBEC) han descubierto que los grandes movimientos celulares ocurren a modo de ondas.<\/p>\n<p>Al estudiar el movimiento de grupos de c\u00e9lulas, los cient\u00edficos observaron de la aparici\u00f3n de deformaciones celulares que se propagaban en los tejidos a aproximadamente el doble de la velocidad del grupo. \u201cImagina ver un atasco de tr\u00e1fico desde el aire,\u201d dice el investigador ICREA responsable del grupo Din\u00e1mica Integrativa de C\u00e9lulas y Tejidos, Xavier Trepat, cuyo trabajo aparece hoy en Nature Physics y como investigaci\u00f3n destacada en Nature. \u201cVer\u00e1s un efecto similar al de una onda cuando algunos coches avanzan y otros los siguen despu\u00e9s de un ligero retraso para llenar los huecos. Pero a diferencia de los coches, las c\u00e9lulas de nuestro estudio se empujan y se estiran las unas a las otras, provocando un fen\u00f3meno mucho m\u00e1s complejo.\u201d<\/p>\n<p>Hace mucho que se sabe c\u00f3mo funcionan las ondas mec\u00e1nicas en la materia inerte, pero \u00e9sta es la primera vez que se observan en materia viva. \u201cEstas oleadas avanzan a aproximadamente un mil\u00edmetro por d\u00eda, y est\u00e1n entre las ondas m\u00e1s lentas jam\u00e1s descubiertas,\u201d a\u00f1ade Xavier.<\/p>\n<p>Los descubrimientos del grupo establecen un patr\u00f3n de tensi\u00f3n reiterado en el tiempo y el espacio a lo largo de un tejido multicelular, algo que jam\u00e1s se hab\u00eda observado antes. Este patr\u00f3n de tensi\u00f3n es un potencial\u00a0 candidato para iniciar la activaci\u00f3n de las redes de se\u00f1alizaci\u00f3n responsables de la invasi\u00f3n celular t\u00edpica del c\u00e1ncer. \u201cEs sabido que las fuerzas f\u00edsicas pueden actuar como se\u00f1ales intracelulares para activar redes locales de prote\u00ednas reguladoras \u2013 los procesos necesarios para que sucedan los eventos biol\u00f3gicos, sean buenos o malos,\u201d dice Xavier. \u201cAs\u00ed pues, la onda que hemos descrito podr\u00eda jugar un papel primordial en el control de los movimientos embrionarios o en el descontrol de los movimientos metast\u00e1ticos.\u201d<\/p>\n<p>Con estos \u00faltimos resultados, los cient\u00edficos est\u00e1n un paso m\u00e1s cerca de comprender c\u00f3mo migran las c\u00e9lulas, y una etapa m\u00e1s cerca de comprender la din\u00e1mica de las c\u00e9lulas tumorales y los mecanismos f\u00edsicos que usan para invadir los tejidos cercanos y metastatizar. \u25a0<\/p>\n<p>X. Serra-Picamal, V. Conte, R. Vincent, E. Anon, D. T. Tambe, E. Bazellieres, J. P. Butler, J. Fredberg, X. Trepat (2012). <a href=\"http:\/\/www.nature.com\/nphys\/journal\/vaop\/ncurrent\/full\/nphys2355.html\" target=\"_blank\">Mechanical waves during tissue expansion. <\/a>Nature Physics, 8 July 2012<\/p>\n","protected":false},"excerpt":{"rendered":"<h3><img decoding=\"async\" class=\"left size-full wp-image-6532 lazyload\" data-src=\"https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/07\/serraimage2.jpg\" border=\"0\" width=\"300\" data-srcset=\"https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/07\/serraimage2.jpg 591w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/07\/serraimage2-225x300.jpg 225w, https:\/\/ibecbarcelona.eu\/wp-content\/uploads\/2012\/07\/serraimage2-112x150.jpg 112w\" data-sizes=\"(max-width: 591px) 100vw, 591px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 591px; --smush-placeholder-aspect-ratio: 591\/787;\" \/>Investigadores obtienen nuevos indicios sobre c\u00f3mo migran colectivamente las c\u00e9lulas de nuestro cuerpo, un proceso decisivo en eventos fisiol\u00f3gicos como el desarrollo embrionario y la curaci\u00f3n de heridas, pero tambi\u00e9n esencial en el desarrollo del c\u00e1ncer.  <\/p>\n","protected":false},"author":4,"featured_media":6533,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[97],"tags":[],"post_formats":[],"class_list":["post-6537","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>Descubierto un nuevo tipo de onda en tejidos vivos - Institute for Bioengineering of Catalonia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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