{"id":48893,"date":"2025-07-17T09:48:05","date_gmt":"2025-07-17T07:48:05","guid":{"rendered":"https:\/\/ellipse.prbb.org\/?p=48893"},"modified":"2025-07-17T09:47:59","modified_gmt":"2025-07-17T07:47:59","slug":"el-sistema-de-defensa-dels-embrions","status":"publish","type":"post","link":"https:\/\/ellipse.prbb.org\/ca\/el-sistema-de-defensa-dels-embrions\/","title":{"rendered":"El sistema de defensa dels embrions"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">En aquesta foto de la setmana, de l&#8217;estudiant de doctorat <strong>Joan Roncero-Carol, <\/strong>us presentem una imatge real d\u2019un <strong>embri\u00f3 hum\u00e0 de cinc o sis dies<\/strong>, en l\u2019estadi de blastocist. Est\u00e0 defensant-se de les bact\u00e8ries, en aquest cas afegides en vermell a la imatge, per mitj\u00e0 de la <strong>fagocitosi<\/strong>. Amb aquest mecanisme, <a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/els-bacteris-resistents-als-antibiotics-es-podrien-combatre-amb-peptids-derivats-de-proteines-humanes\/\" target=\"_blank\">les c\u00e8l\u00b7lules epitelials de la superf\u00edcie de l\u2019embri\u00f3<\/a> envolten, ingereixen i destrueixen els agents pat\u00f2gens. En <a rel=\"noreferrer noopener\" href=\"https:\/\/www.upf.edu\/web\/focus\/w\/embriones-pueden-eliminar-infecciones-bacterianas\" target=\"_blank\">una recent investigaci\u00f3<\/a>, s\u2019ha vist que aquest proc\u00e9s es dona abans que l\u2019embri\u00f3 estigui implantat a l\u2019\u00fater i molt abans que es formin els <a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/phf19-regula-la-generacio-de-les-cellules-sanguinies\/\" target=\"_blank\">gl\u00f2buls blancs<\/a> de l\u2019individu. De fet, el proc\u00e9s podria ser l\u2019origen de la immunitat segons <strong>Esteban Hoijman<\/strong>, investigador principal de l\u2019estudi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Aquests resultats s\u2019han aconseguit gr\u00e0cies a <strong>t\u00e8cniques avan\u00e7ades de microsc\u00f2pia en embrions de <a href=\"https:\/\/ellipse.prbb.org\/ca\/el-peix-zebra-una-finestra-transparent-a-la-nostra-biologia\/\" target=\"_blank\" rel=\"noreferrer noopener\">peixos zebra<\/a><\/strong>, tot i que el proc\u00e9s tamb\u00e9 es dona en <a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/un-embrio-transparent-i-complet-de-ratoli\/\" target=\"_blank\">embrions<\/a> humans. En aquest cas, <a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/els-bacteris-resistents-als-antibiotics-es-podrien-combatre-amb-peptids-derivats-de-proteines-humanes\/\" target=\"_blank\">lluitaven contra les bact\u00e8ries<\/a> <em>Escherichia coli <\/em>i <em>Staphylococcus aureus<\/em>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a rel=\"noreferrer noopener\" href=\"https:\/\/www.upf.edu\/web\/focus\/w\/embriones-pueden-eliminar-infecciones-bacterianas\" target=\"_blank\">La recerca<\/a> l\u2019ha liderat l\u2019Institut de Biologia Molecular de Barcelona (IBMB) i l\u2019Institut d\u2019Investigaci\u00f3 Biom\u00e8dica de Bellvitge (IDIBELL). En ella, ha col\u00b7laborat personal investigador del departament de <a rel=\"noreferrer noopener\" href=\"https:\/\/www.upf.edu\/web\/biomed\" target=\"_blank\">Medicina i Ci\u00e8ncies de la Vida de la Universitat Pompeu Fabra (MELIS-UPF)<\/a>, del <a rel=\"noreferrer noopener\" href=\"http:\/\/www.crg.eu\/\" target=\"_blank\">Centre de Regulaci\u00f3 Gen\u00f2mica (CRG)<\/a>, de l\u2019Institut de Bioenginyeria de Catalunya (IBEC), de la Universitat de Barcelona (UB), de l\u2019Hospital Dexeus i de la fundaci\u00f3 ICREA.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>En aquesta foto de la setmana, de l&#8217;estudiant de doctorat Joan Roncero-Carol, us presentem una imatge real d\u2019un embri\u00f3 hum\u00e0 de cinc o sis dies, en l\u2019estadi de blastocist. Est\u00e0 defensant-se de les bact\u00e8ries, en aquest cas afegides en vermell a la imatge, per mitj\u00e0 de la fagocitosi. Amb aquest mecanisme, les c\u00e8l\u00b7lules epitelials de [&hellip;]<\/p>\n","protected":false},"author":34,"featured_media":48937,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[26],"tags":[477,265,686,273,247],"new-type":[40],"class_list":["post-48893","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-recerca","tag-bacteris","tag-crg-ca","tag-embrio","tag-melis-upf-ca","tag-peix-zebra","new-type-foto-de-la-setmana"],"acf":[],"_links":{"self":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/48893","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\/34"}],"replies":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/comments?post=48893"}],"version-history":[{"count":6,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/48893\/revisions"}],"predecessor-version":[{"id":48942,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/48893\/revisions\/48942"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media\/48937"}],"wp:attachment":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media?parent=48893"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/categories?post=48893"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/tags?post=48893"},{"taxonomy":"new-type","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/new-type?post=48893"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}