{"id":11324,"date":"2014-09-14T13:52:21","date_gmt":"2014-09-14T11:52:21","guid":{"rendered":"https:\/\/ellipse.prbb.org\/?p=11324"},"modified":"2024-06-03T12:28:01","modified_gmt":"2024-06-03T10:28:01","slug":"un-cuc-molt-elegant","status":"publish","type":"post","link":"https:\/\/ellipse.prbb.org\/ca\/un-cuc-molt-elegant\/","title":{"rendered":"Un cuc molt elegant"},"content":{"rendered":"<p><a href=\"https:\/\/ellipse.prbb.org\/ca\/sydney-brenner-estic-interessat-en-la-ciencia-de-solucionar-problemes\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Sydney Brenner<\/strong>, recentment nomenat doctor <em>honoris causa<\/em> per la UPF<\/a>, va afirmar en el seu discurs d\u2019acceptaci\u00f3 del Nobel de 2002 que \u00abl\u2019elecci\u00f3 de l&#8217;organisme model \u00e9s tan important com trobar bons temes a investigar\u00bb. Per <strong>triar el seu <a href=\"https:\/\/ellipse.prbb.org\/ca\/de-mosques-i-humans\/\" target=\"_blank\" rel=\"noopener noreferrer\">organisme model<\/a> ideal<\/strong>, Brenner va rec\u00f3rrer el m\u00f3n dels \u00abmicrometazous\u00bb \u2500petits animals amb sistemes d&#8217;\u00f2rgans complets\u2500 abans de decidir-se pel <strong><em>Caenorhabditis elegans<\/em>, un cuc nematode de vida lliure<\/strong>.<\/p>\n<p>Sent un hermafrodita que s\u2019autofertilitza, un sol cuc pot produir 300 c\u00f2pies id\u00e8ntiques d\u2019ell mateix en tan sols tres dies. Tamb\u00e9 existeixen mascles, poc comuns, que permeten la transfer\u00e8ncia de gens entre les poblacions, molt <strong>\u00fatil per a la gen\u00e8tica<\/strong>. El cuc \u00e9s transparent, per la qual cosa \u00e9s <strong>ideal per a la microsc\u00f2pia<\/strong> \u2014 la investigaci\u00f3 pionera sobre les prote\u00efnes fluorescents es va realitzar en part en <em>C. elegans<\/em>. El cablejat del seu sistema nervi\u00f3s est\u00e0 completament descrit, la qual cosa el fa <strong>molt \u00fatil per a la neuroci\u00e8ncia<\/strong>, i continua sent, amb molt, l&#8217;organisme model m\u00e9s utilitzat per a la recerca sobre l&#8217;<strong>envelliment<\/strong>.<\/p>\n<p><em>C. elegans<\/em> va ser <strong>el primer organisme multicel\u00b7lular a tenir el seu genoma totalment seq\u00fcenciat<\/strong>. I amb la t\u00e8cnica de l\u2019<strong>ARN d\u2019interfer\u00e8ncia<\/strong>, es pot inhibir l&#8217;expressi\u00f3 de qualsevol gen alimentant el cuc amb un bacteri que expressi l\u2019ARN adequat. A m\u00e9s, \u00e9s <strong>molt f\u00e0cil de mantenir<\/strong>: els cucs sobreviuen a la congelaci\u00f3 indefinida.<\/p>\n<p>&nbsp;<\/p>\n<blockquote><p><span lang=\"ca\" tabindex=\"0\"><em>C. elegans<\/em> \u00e9s un cuc hermafrodita petit i transparent, el genoma del qual va ser el primer d&#8217;un organisme pluricel\u00b7lular que es va publicar. \u00c9s molt \u00fatil per a la recerca en gen\u00e8tica, microsc\u00f2pia, neuroci\u00e8ncia i envelliment.<\/span><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<p>No en va <strong>la recerca duta a terme en cucs ha merescut tres premis Nobel<\/strong>, entre ells el de Brenner per haver caracteritzat el paper de la mort cel\u00b7lular en el desenvolupament.<\/p>\n<p><em>C. elegans <\/em>pot ser un cuc humil, per\u00f2 ha fet una contribuci\u00f3 essencial a la nostra comprensi\u00f3 de la biologia.<\/p>\n<p>_________________________________<\/p>\n<p>Aquest article ha estat escrit per&nbsp;<a href=\"https:\/\/ellipse.prbb.org\/ca\/reconeixement-internacional-per-a-un-estudiant-del-crg-i-la-upf\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Marcos Francisco P\u00e9rez<\/strong><\/a>, un estudiant de doctorat al laboratori de&nbsp;<a href=\"https:\/\/ellipse.prbb.org\/ca\/noves-dades-sobre-lagregacio-proteica-i-les-malalties-neurodegeneratives\/\" target=\"_blank\" rel=\"noopener noreferrer\">Ben Lehner<\/a>&nbsp;al <a href=\"http:\/\/www.crg.eu\/\" target=\"_blank\" rel=\"noopener noreferrer\">Centre de Regulaci\u00f3 Gen\u00f2mica (CRG)<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sydney Brenner, recentment nomenat doctor honoris causa per la UPF, va afirmar en el seu discurs d\u2019acceptaci\u00f3 del Nobel de 2002 que \u00abl\u2019elecci\u00f3 de l&#8217;organisme model \u00e9s tan important com trobar bons temes a investigar\u00bb. Per triar el seu organisme model ideal, Brenner va rec\u00f3rrer el m\u00f3n dels \u00abmicrometazous\u00bb \u2500petits animals amb sistemes d&#8217;\u00f2rgans complets\u2500 [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":11321,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30],"tags":[336,513,265,708,323,317,205],"new-type":[35],"class_list":["post-11324","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia-i-societat","tag-c-elegans","tag-ciencia-al-descobert","tag-crg-ca","tag-genetica","tag-microscopia","tag-neurobiologia","tag-organismes-model","new-type-noticies"],"acf":[],"_links":{"self":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/11324","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/comments?post=11324"}],"version-history":[{"count":6,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/11324\/revisions"}],"predecessor-version":[{"id":42917,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/11324\/revisions\/42917"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media\/11321"}],"wp:attachment":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media?parent=11324"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/categories?post=11324"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/tags?post=11324"},{"taxonomy":"new-type","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/new-type?post=11324"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}