{"id":9805,"date":"2017-04-25T11:57:26","date_gmt":"2017-04-25T09:57:26","guid":{"rendered":"https:\/\/news.embl.de\/?p=9805"},"modified":"2024-03-25T10:03:44","modified_gmt":"2024-03-25T09:03:44","slug":"1704-developing-embryos-found-to-use-ancient-viral-dna","status":"publish","type":"post","link":"https:\/\/www.embl.org\/news\/science\/1704-developing-embryos-found-to-use-ancient-viral-dna\/","title":{"rendered":"Embryos use ancient viral DNA"},"content":{"rendered":"\n<p>DNA from viruses that once infected our ancestors millions of years ago have remained in our genome to this day. In a <a href=\"http:\/\/dx.doi.org\/10.7554\/eLife.22345\" target=\"_blank\" rel=\"noopener noreferrer\">study<\/a> published today in <i>eLife<\/i>, EMBL scientists found that activation of one class of these ancient viral sequences is critical for early mouse embryo development, and identified the protein involved in regulating them.<\/p>\n\n\n\n<p>\u201cWe found that a part of mouse DNA, which was likely originally from a virus that infected&nbsp;their ancestors, is now important for the mice&#8217;s development,\u201d says <a href=\"https:\/\/www.embl.it\/research\/unit\/hackett\/?_ga=1.224698202.1534299975.1469798681\" target=\"_blank\" rel=\"noopener noreferrer\">Jamie Hackett<\/a> from EMBL, who led the study with <a href=\"http:\/\/www.gurdon.cam.ac.uk\/research\/surani\" target=\"_blank\" rel=\"noopener noreferrer\">Azim Surani<\/a> from the Gurdon Institute in Cambridge, UK.<\/p>\n\n\n\n<div class=\"vf-box vf-box--normal vf-box-theme--primary\">\n\n\n\n<h3 class=\"wp-block-heading\">In a nutshell<\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>genetic sequence that once belonged to a virus is important for mammalian embryos to develop<\/li><li>this viral sequence is switched on at very first stages of development<\/li><li>although the study was performed on mice, the principle could hold true for humans<\/li><\/ul><\/div>\n\n\n\n<p>Working with colleagues at EMBL-EBI and at the Gurdon Institute in Cambridge, UK, Hackett studied a genetic sequence called MuERV-L. This portion of DNA is a transposable element \u2013 a genetic sequence that can copy-and-paste itself from one location to another in the genome.<\/p>\n\n\n\n<p>The scientists found that a protein called \u2018Stella\u2019 \u2013 which the embryo receives from its mother \u2013 is involved in activating this transposable element at the very beginning of the embryo\u2019s development, when the fertilised egg first divides.<\/p>\n\n\n\n<figure class=\"vf-figure wp-block-image alignnone wp-image-9820 size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"250\" class=\"vf-figure__image\" src=\"https:\/\/news.embl.de\/wp-content\/uploads\/2017\/04\/pr25apr17_02.jpg\" alt=\"\" class=\"wp-image-9820\" srcset=\"https:\/\/www.embl.org\/news\/wp-content\/uploads\/2017\/04\/pr25apr17_02.jpg 620w, https:\/\/www.embl.org\/news\/wp-content\/uploads\/2017\/04\/pr25apr17_02-300x121.jpg 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><figcaption class=\"vf-figure__caption\">Without a protein called Stella, the ancient viral DNA is not activated (right), and embryos do not survive. IMAGE: Jamie Hackett\/EMBL<\/figcaption><\/figure>\n\n\n\n<p>\u201cMouse embryos without the Stella protein did not survive beyond the first few days of cell division,\u201d says Hackett. \u201cWe found that this is partly because Stella regulates this transposable element, which in turn activates a number of genes that are important for early development.\u201d<\/p>\n\n\n\n<p>Although the work was done on mice, humans also have Stella and their own transposable element sequences, which could play a comparable key role in human development. Next, Hackett\u2019s lab at EMBL would like to further investigate how transposable elements regulate genes, and how epigenetics may play a role in this process.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>EMBL scientists detect important function of genetic sequence our ancestors assimilated from a virus<\/p>\n","protected":false},"author":46,"featured_media":9817,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2,17591],"tags":[55,36,39,496,498,74,1748,514],"embl_taxonomy":[],"class_list":["post-9805","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science","category-science-technology","tag-development","tag-embl-ebi","tag-epigenetics","tag-genome-biology","tag-hackett","tag-monterotondo","tag-press-release","tag-rome"],"acf":{"article_intro":"<p>EMBL scientists detect important function of genetic sequence our ancestors assimilated from a virus<\/p>\n","related_links":false,"article_sources":[{"source_description":"<p>Huang Y <i>et al<\/i>. <i>eLife<\/i>, published online 25 April 2017. DOI:\u00a010.7554\/eLife.22345.<\/p>\n","source_link_url":"http:\/\/dx.doi.org\/10.7554\/eLife.22345"}],"vf_locked":false,"featured":false,"color":"#007B53","show_featured_image":false,"in_this_article":false,"youtube_url":"","mp4_url":"","video_caption":"","translations":false,"press_contact":"EMBL Generic"},"embl_taxonomy_terms":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Developing embryos found to use ancient viral DNA \u2013 EMBL<\/title>\n<meta name=\"description\" content=\"EMBL scientists detect important function of genetic sequence our ancestors assimilated from a virus\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.embl.org\/news\/science\/1704-developing-embryos-found-to-use-ancient-viral-dna\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Developing embryos found to use ancient viral DNA \u2013 EMBL\" \/>\n<meta property=\"og:description\" content=\"EMBL scientists detect important function of genetic sequence our ancestors assimilated from a virus\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.embl.org\/news\/science\/1704-developing-embryos-found-to-use-ancient-viral-dna\/\" \/>\n<meta property=\"og:site_name\" content=\"EMBL\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/embl.org\/\" \/>\n<meta property=\"article:published_time\" content=\"2017-04-25T09:57:26+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-25T09:03:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.embl.org\/news\/wp-content\/uploads\/2017\/04\/170426-ancient-DNA_ib.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"620\" \/>\n\t<meta property=\"og:image:height\" content=\"425\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Annika Duda\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@embl\" \/>\n<meta name=\"twitter:site\" content=\"@embl\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Annika Duda\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\/\/www.embl.org\/news\/science\/1704-developing-embryos-found-to-use-ancient-viral-dna\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.embl.org\/news\/science\/1704-developing-embryos-found-to-use-ancient-viral-dna\/\"},\"author\":{\"name\":\"Annika Duda\",\"@id\":\"https:\/\/www.embl.org\/news\/#\/schema\/person\/b1c978a24ebee747bed115f4ff661b78\"},\"headline\":\"Embryos use ancient viral DNA\",\"datePublished\":\"2017-04-25T09:57:26+00:00\",\"dateModified\":\"2024-03-25T09:03:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.embl.org\/news\/science\/1704-developing-embryos-found-to-use-ancient-viral-dna\/\"},\"wordCount\":353,\"publisher\":{\"@id\":\"https:\/\/www.embl.org\/news\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.embl.org\/news\/science\/1704-developing-embryos-found-to-use-ancient-viral-dna\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.embl.org\/news\/wp-content\/uploads\/2017\/04\/170426-ancient-DNA_ib.jpg\",\"keywords\":[\"development\",\"embl-ebi\",\"epigenetics\",\"genome biology\",\"hackett\",\"monterotondo\",\"press release\",\"rome\"],\"articleSection\":[\"Science\",\"Science &amp; 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