{"id":49126,"date":"2014-10-29T00:00:00","date_gmt":"2014-10-28T23:00:00","guid":{"rendered":"http:\/\/www.pcb.ub.edu\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\/"},"modified":"2020-11-18T14:54:40","modified_gmt":"2020-11-18T13:54:40","slug":"a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed","status":"publish","type":"post","link":"https:\/\/www.pcb.ub.edu\/en\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\/","title":{"rendered":"A mechanism that allows a differentiated cell to reactivate as a stem cell revealed"},"content":{"rendered":"<p>&#8221;<\/p>\n<div class=\"col-sm-6 detall-noticia-imatges\">\n<div class=\"row\">\n<div class=\"item active one-image\">\n\t\t\t\t\t\t<a class=\"icon-search\" href='http:\/\/www.pcb.ub.edu\/wp-content\/uploads\/2020\/11\/1414663005595.jpg'><\/a><br \/>\n\t\t\t\t\t\t<img src='http:\/\/www.pcb.ub.edu\/wp-content\/uploads\/2020\/11\/1414663005595.jpg' \/>\n\t\t\t\t\t<\/div><\/div><\/div>\n<p>\t\t\tWorking with larval tracheal cells of Drosophila melanogaster, these authors report that the key feature of these cells is that they have not entered the endocycle, a modified cell cycle through which a cell reproduces its genome several times without dividing. &#8220;The function of endocycle in living organisms is not fully understood,&#8221; comments  Xavier Franch-Marro. &#8220;One of the theories is that endoreplication contributes to enlarge the cell and confers the production of high amounts of protein&#8221;. This is the case of almost all larval cells of Drosophila.  <\/p>\n<p>The scientists have observed that the cells that enter the endocycle lose the capacity to reactivate as stem cells. &#8220;The endocycle is linked to an irreversible change of gene expression in the cell,&#8221; explains Jordi Casanova, &#8220;We have seen that inhibition of endocycle entry confers the cells the capacity to reactivate as stem cells&#8221;. Cell entry into the endocycle is associated with the expression of the Fzr gene. The researchers have found that inhibition of this gene prevents this entry, which in turn leads to the conversion of the cell into an adult progenitor that retains the capacity to reactivate as a stem cell. Therefore, this gene acts as a switch that determines whether a cell will enter mitosis (the normal division of a cell) or the endocycle, the latter triggering a totally different genetic program with a distinct outcome regarding the capacity of a cell to reactivate as a stem cell. <\/p>\n<p> <a>For further information [+]<\/a>     <\/p>\n","protected":false},"excerpt":{"rendered":"<p>One kind of stem cell, those referred to as \u2018facultative&#8217;, form part\u2014together with other cells\u2014of tissues and organs. There is apparently nothing that differentiates these cells from the others. However, they have a very special characteristic, namely they retain the capacity to become stem cells again. Headed by Jordi Casanova, research professor at the Instituto de Biolog\u00eda Molecular de Barcelona (<a>IBMB-CSIC<\/a>) and at <a>IRB Barcelona<\/a> \u2013based in the PCB\u2013  and by Xavier Franch-Marro, CSIC tenured scientist at the Instituto de Biolog\u00eda Evolutiva (<a>IBE-CSIC-UPF<\/a>), a study published in the journal Cell Reports (<a>doi: 10.1016\/j.celrep.2014.09.043<\/a>) reveals a mechanism that could explain this capacity.Unveiling the genetic traits that favour the retention of stem cell properties is crucial for regenerative medicine.  <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-49126","post","type-post","status-publish","format-standard","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A mechanism that allows a differentiated cell to reactivate as a stem cell revealed - Parc Cient\u00edfic de Barcelona<\/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:\/\/www.pcb.ub.edu\/en\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A mechanism that allows a differentiated cell to reactivate as a stem cell revealed - Parc Cient\u00edfic de Barcelona\" \/>\n<meta property=\"og:description\" content=\"One kind of stem cell, those referred to as \u2018facultative&#039;, form part\u2014together with other cells\u2014of tissues and organs. There is apparently nothing that differentiates these cells from the others. However, they have a very special characteristic, namely they retain the capacity to become stem cells again. Headed by Jordi Casanova, research professor at the Instituto de Biolog\u00eda Molecular de Barcelona (IBMB-CSIC) and at IRB Barcelona \u2013based in the PCB\u2013 and by Xavier Franch-Marro, CSIC tenured scientist at the Instituto de Biolog\u00eda Evolutiva (IBE-CSIC-UPF), a study published in the journal Cell Reports (doi: 10.1016\/j.celrep.2014.09.043) reveals a mechanism that could explain this capacity.Unveiling the genetic traits that favour the retention of stem cell properties is crucial for regenerative medicine.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pcb.ub.edu\/en\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\/\" \/>\n<meta property=\"og:site_name\" content=\"Parc Cient\u00edfic de Barcelona\" \/>\n<meta property=\"article:published_time\" content=\"2014-10-28T23:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2020-11-18T13:54:40+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.pcb.ub.edu\/wp-content\/uploads\/2020\/11\/1414663005595.jpg\" \/>\n<meta name=\"author\" content=\"adminpcb\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"adminpcb\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.pcb.ub.edu\\\/en\\\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.pcb.ub.edu\\\/en\\\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\\\/\"},\"author\":{\"name\":\"adminpcb\",\"@id\":\"https:\\\/\\\/www.pcb.ub.edu\\\/es\\\/#\\\/schema\\\/person\\\/d13cab05cd0a75b17fddca8496481021\"},\"headline\":\"A mechanism that allows a differentiated cell to reactivate as a stem cell revealed\",\"datePublished\":\"2014-10-28T23:00:00+00:00\",\"dateModified\":\"2020-11-18T13:54:40+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.pcb.ub.edu\\\/en\\\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\\\/\"},\"wordCount\":256,\"image\":{\"@id\":\"https:\\\/\\\/www.pcb.ub.edu\\\/en\\\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/www.pcb.ub.edu\\\/wp-content\\\/uploads\\\/2020\\\/11\\\/1414663005595.jpg\",\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.pcb.ub.edu\\\/en\\\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\\\/\",\"url\":\"https:\\\/\\\/www.pcb.ub.edu\\\/en\\\/a-mechanism-that-allows-a-differentiated-cell-to-reactivate-as-a-stem-cell-revealed\\\/\",\"name\":\"A mechanism that allows a differentiated cell to reactivate as a stem cell revealed - 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