{"id":69565,"date":"2024-08-08T11:35:21","date_gmt":"2024-08-08T09:35:21","guid":{"rendered":"https:\/\/www.embl.org\/news\/?p=69565"},"modified":"2025-01-29T14:43:14","modified_gmt":"2025-01-29T13:43:14","slug":"we-are-embl-jana-helsen-on-the-bridging-excellence-fellowship-chromosomal-evolution-and-art","status":"publish","type":"post","link":"https:\/\/www.embl.org\/news\/people-perspectives\/we-are-embl-jana-helsen-on-the-bridging-excellence-fellowship-chromosomal-evolution-and-art\/","title":{"rendered":"We are EMBL: Jana Helsen on the Bridging Excellence fellowship, chromosomal evolution, and art"},"content":{"rendered":"\n<p>A cassette tape rewound by a pipette \u2013 a piece of equipment commonly used in laboratories to measure and transfer tiny amounts of liquid \u2013 is not an image you would often see. But this is exactly what greets you as you enter Jana Helsen\u2019s office. And she drew it.<\/p>\n\n\n\n<p>That\u2019s not the only interesting aspect of Helsen\u2019s current life as a scientist. She is also uniquely a joint<em> <\/em>postdoctoral researcher, moving between <a href=\"https:\/\/www.embl.org\/groups\/dey\/\">the Dey Group<\/a> at EMBL Heidelberg and <a href=\"https:\/\/web.stanford.edu\/group\/sherlocklab\/\">the Sherlock lab<\/a> at Stanford University, USA. This arrangement was made possible through the Bridging Excellence Fellowship Programme of the <a href=\"https:\/\/www.embl.org\/about\/info\/life-science-alliance\/\">EMBL\u2013Stanford Life Science Alliance<\/a>. Helsen was one of the first to receive this type of postdoctoral experience with her supervisors Gautam Dey and Gavin Sherlock.<\/p>\n\n\n\n<p>Recently, she shared her thoughts on this experience that is ending soon, her latest research achievements, and the origin of her hobby that combines passions for both art and science.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Tell us about your work at EMBL.<\/h3>\n\n\n\n<p>In the Dey Lab, we study the evolutionary origins of the nucleus \u2013 the cell compartment where DNA is stored, particularly during cell division, the process in which a mother cell gives birth to two identical daughter cells. To tackle this question, we use many different organisms, and my colleagues and I study a wide variety of topics that focus on different aspects of this cellular process. I personally study the evolutionary interaction between chromosomes \u2013 the packaged form in which DNA is stored \u2013 and the cell division machinery.<\/p>\n\n\n\n<p>In my latest paper, <a href=\"https:\/\/www.nature.com\/articles\/s41556-024-01485-w\">now published in <em>Nature Cell Biology<\/em><\/a>, I investigated whether the cell division machinery can segregate any number of chromosomes. Chromosome numbers can vary dramatically between species, even on very short evolutionary time scales, yet the cell must still manage to duplicate and segregate each chromosome accurately during cell division. Failure to do so results in aneuploidy \u2013 an incorrect number of chromosomes \u2013 which can result in birth defects and cancers.<\/p>\n\n\n\n<p>We showed that there is a minimum chromosome number a budding yeast cell (my model organism of choice) must have before it starts experiencing a growth delay. If a cell has fewer than five chromosomes, there is a force imbalance in the spindle \u2013 the protein machinery responsible for ensuring the proper distribution of chromosomes during cell division. This signals to the cell that it is not yet time to separate its chromosomes, prolonging the time the cell needs to divide.<\/p>\n\n\n\n<p>We also evolved in the lab cells with different chromosome numbers, starting from their original set of 16 chromosomes all the way down to three. We observed that cells with a chromosome number below the tolerability threshold can resolve cell division delay and restore fitness by increasing their number of chromosomes beyond this lower limit.<\/p>\n\n\n\n<p>In addition, I\u2019m also wrapping up an exciting piece of work on the evolution of the centromere \u2013 the part of the chromosome where the spindle attaches \u2013 which we aim to publish as a preprint later this year.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Why is this work important and how does it influence the broader field of research?<\/strong><\/h3>\n\n\n\n<p>Overall, we believe that our results will be of broad interest to both cell biologists interested in chromosome segregation, and evolutionary biologists interested in chromosome number evolution.<\/p>\n\n\n\n<p>The study itself is important for several reasons. It provides an explicit experimental example of how the mechanics of a core cellular process can constrain evolutionary processes \u2013 something impossible to determine simply through comparisons between extant species. Additionally, it highlights the cellular requirements for stable chromosome segregation.<\/p>\n\n\n\n<p>Our work also shows how experimental evolution can be employed in the emerging field of evolutionary cell biology, which seeks to understand how evolutionary processes work.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>If you had to summarise your work in one sentence, how would it sound?<\/strong><\/h3>\n\n\n\n<p>I explore the relationship between how the cell division machinery is built and how chromosomes evolve over time.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What made you apply for the joint postdoc position?<\/strong><\/h3>\n\n\n\n<p>When I read about the call for fellowship applications for a joint postdoc between Gavin\u2019s lab at Stanford and Gautam\u2019s lab at EMBL, I was immediately intrigued. I knew of Gavin\u2019s work and was very eager to work with him. At the same time, I was curious to join Gautam\u2019s lab as it was just starting out. The combination of their knowledge could give me the perfect opportunity to dive into two research fields I\u2019m very excited about: evolution and cell biology.<\/p>\n\n\n\n<p>Merging the expertise of two labs and two leading research institutes allowed me to learn and use a combination of different techniques, which is a powerful way to tackle challenging biological questions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What did you like most about being part of the Bridging Excellence Fellowship Programme?<\/strong><\/h3>\n\n\n\n<p>I really enjoyed the element of adventure in my experience. I had to move my life between two countries multiple times, get to know new people, new places, different cultures, and different ways to do science.<\/p>\n\n\n\n<p>Learning how science is done in different countries expanded my horizons and made me rethink how I do science myself and how I would like to lead my own research group in the future. I will, for sure, try to implement the best of both working methods and philosophies I was exposed to during my time as a Bridging Excellence Fellow.<\/p>\n\n\n\n<p>Moreover, this experience allowed me to build a network of colleagues and friends that will be essential bridges for potential collaborations across the world in the future, and I am very excited to see where they take me.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>You created digital drawings as journal covers for your papers. How did you develop this hobby and how does this enrich you as a scientist?<\/strong><\/h3>\n\n\n\n<p>I started playing around with digital drawings a couple of years ago, just for fun. Most of my drawings either portray a metaphor or are a bit quirky. Usually, I try to combine different ideas to convey a new message (e.g., a cassette tape and a pipette). Coming up with ideas for a cover really forces me to think about the key messages of my papers and how I can visualise them in an abstract, yet artistic way. To me, conceptualising it is actually as much fun as making the actual drawing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Which has been your favourite cover and why?<\/strong><\/h3>\n\n\n\n<p>So far, both drawings I submitted have been selected to be featured on a cover, and I\u2019m waiting to hear back about the one I made for our latest article. My favourite so far is titled &#8216;Rewinding the tape of life in the lab&#8217; which accompanied our opinion piece &#8216;Experimental evolution for cell biology&#8217;. I feel it is a good representation of the approach I like to use in most of my projects. I\u2019m quite happy with how it turned out, and I had a lot of fun trying to come up with the concept. The metaphor \u2018replaying life\u2019s tape\u2019 was coined by the late evolutionary biologist Stephen Jay Gould and served as inspiration for the drawing. I also thought it funny (and somewhat flattering) that many people thought I would be too young to remember how cassette tapes work.<\/p>\n\n\n\n<figure class=\"vf-figure wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"782\" height=\"1024\" class=\"vf-figure__image\" src=\"https:\/\/www.embl.org\/news\/wp-content\/uploads\/2024\/08\/2023_TCB-782x1024.jpg\" alt=\"\" class=\"wp-image-69619\" srcset=\"https:\/\/www.embl.org\/news\/wp-content\/uploads\/2024\/08\/2023_TCB-782x1024.jpg 782w, https:\/\/www.embl.org\/news\/wp-content\/uploads\/2024\/08\/2023_TCB-229x300.jpg 229w, https:\/\/www.embl.org\/news\/wp-content\/uploads\/2024\/08\/2023_TCB-768x1006.jpg 768w, https:\/\/www.embl.org\/news\/wp-content\/uploads\/2024\/08\/2023_TCB-scaled.jpg 1955w\" sizes=\"auto, (max-width: 782px) 100vw, 782px\" \/><figcaption class=\"vf-figure__caption\">&#8216;Rewinding the tape of life in the lab&#8217; by Jana Helsen was selected as a cover for Trends in Cell Biology (Vol 33:11, Nov 2023) to accompany the opinion article &#8216;Experimental evolution for cell biology&#8217; by Jana Helsen, Gavin Sherlock, and Gautam Dey. Credit: Jana Helsen\/EMBL.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>What is your favourite piece of wisdom about doing science?<\/strong><\/h3>\n\n\n\n<p>When deciding whether to stay in academia, I could not see myself living the same life as some of my scientific role models without losing my identity. After discussing this with some of my peers, we concluded that it is okay to break that mould. You can define the way you do science. It\u2019s easy to compare yourself to other scientists and feel like you should be doing all the things they are doing, but try to use your own strengths, interests, and values to come up with your own unique way of doing science.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>EMBL-Stanford Life Science Alliance fellow Jana Helsen shares how she balanced her life between two laboratories and countries, her latest research paper, and her passion for cover art.<\/p>\n","protected":false},"author":165,"featured_media":69647,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[17593],"tags":[697,975,66,535,13676,31,43,879,57,877,14003,493,768],"embl_taxonomy":[19201,9796,17349],"class_list":["post-69565","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-people-perspectives","tag-art","tag-bridging-excellence-fellowship","tag-cell-division","tag-chromosome","tag-dey","tag-evolution","tag-heidelberg","tag-life-science-alliance","tag-postdoc","tag-stanford","tag-we-are-embl","tag-women-in-science","tag-yeast","embl_taxonomy-dey-group","embl_taxonomy-embl-heidelberg","embl_taxonomy-embl-stanford-life-science-alliance"],"acf":{"featured":true,"show_featured_image":false,"field_target_display":"embl","field_article_language":{"value":"english","label":"English"},"article_intro":"<p>EMBL-Stanford Life Science Alliance fellow Jana Helsen shares how she balanced her life between two laboratories and countries, her latest research paper, and her passion for cover art.<\/p>\n","related_links":[{"link_description":"Dey Group at EMBL Heidelberg","link_url":"https:\/\/www.embl.org\/groups\/dey\/"},{"link_description":"Sherlock Lab at Stanford University","link_url":"https:\/\/web.stanford.edu\/group\/sherlocklab\/"},{"link_description":"EMBL-Stanford Life Science Alliance","link_url":"https:\/\/www.embl.org\/about\/info\/life-science-alliance\/"}],"source_article":[{"publication_title":"Spindle architecture constrains karyotype evolution","publication_link":{"title":"","url":"https:\/\/www.nature.com\/articles\/s41556-024-01485-w","target":""},"publication_authors":"Helsen J. et al","publication_source":"Nature Cell Biology","publication_date":"8 August 2024","publication_doi":"10.1038\/s41556-024-01485-w"}],"in_this_article":false,"press_contact":"None","article_translations":false,"languages":"","vf_locked":false},"embl_taxonomy_terms":[{"uuid":"a:3:{i:0;s:36:\"302cfdf7-365b-462a-be65-82c7b783ebf7\";i:1;s:36:\"64999cc4-9a7c-4fea-8339-0e2acc990e08\";i:2;s:36:\"af4ad533-c1c7-43aa-b7a7-1336c1394406\";}","parents":[],"name":["Dey Group"],"slug":"dey-group","description":"What &gt; Cell biology and biophysics &gt; Dey Group"},{"uuid":"a:3:{i:0;s:36:\"b14d3f13-5670-44fb-8970-e54dfd9c921a\";i:1;s:36:\"89e00fee-87f4-482e-a801-4c3548bb6a58\";i:2;s:36:\"ab46b6d4-71d8-49f8-b2f4-b326d4c8ea4e\";}","parents":[],"name":["EMBL Heidelberg"],"slug":"embl-heidelberg","description":"Where &gt; All EMBL sites &gt; EMBL Heidelberg"},{"uuid":"a:3:{i:0;s:36:\"302cfdf7-365b-462a-be65-82c7b783ebf7\";i:1;s:36:\"d3050cdd-8276-4b46-ab11-1dd51da085de\";i:2;s:36:\"b8273e9b-42ec-4e7c-863c-55288e691089\";}","parents":[],"name":["EMBL | Stanford Life Science Alliance "],"slug":"embl-stanford-life-science-alliance","description":"What &gt; Institutional collaborations &gt; EMBL | Stanford Life Science Alliance"}],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>We are EMBL: Jana Helsen on the Bridging Excellence fellowship, chromosomal evolution, and art | EMBL<\/title>\n<meta name=\"description\" content=\"EMBL-Stanford Life Science Alliance fellow Jana Helsen shares her experience, her latest research paper, and her passion for cover art\" \/>\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\/people-perspectives\/we-are-embl-jana-helsen-on-the-bridging-excellence-fellowship-chromosomal-evolution-and-art\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"We are EMBL: Jana Helsen on the Bridging Excellence fellowship, chromosomal evolution, and art | EMBL\" \/>\n<meta property=\"og:description\" content=\"EMBL-Stanford Life Science Alliance fellow Jana Helsen shares her experience, her latest research paper, and her passion for cover art\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.embl.org\/news\/people-perspectives\/we-are-embl-jana-helsen-on-the-bridging-excellence-fellowship-chromosomal-evolution-and-art\/\" \/>\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=\"2024-08-08T09:35:21+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-01-29T13:43:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.embl.org\/news\/wp-content\/uploads\/2024\/08\/Jana-Helsen-EMBL-01-m-e1724665027117.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1000\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Beatrice Casati\" \/>\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=\"Beatrice Casati\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"NewsArticle\",\"@id\":\"https:\/\/www.embl.org\/news\/people-perspectives\/we-are-embl-jana-helsen-on-the-bridging-excellence-fellowship-chromosomal-evolution-and-art\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.embl.org\/news\/people-perspectives\/we-are-embl-jana-helsen-on-the-bridging-excellence-fellowship-chromosomal-evolution-and-art\/\"},\"author\":{\"name\":\"Beatrice Casati\",\"@id\":\"https:\/\/www.embl.org\/news\/#\/schema\/person\/27ad1804561bb1f0f8fea20bbfd76954\"},\"headline\":\"We are EMBL: Jana Helsen on the Bridging Excellence fellowship, chromosomal evolution, and art\",\"datePublished\":\"2024-08-08T09:35:21+00:00\",\"dateModified\":\"2025-01-29T13:43:14+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.embl.org\/news\/people-perspectives\/we-are-embl-jana-helsen-on-the-bridging-excellence-fellowship-chromosomal-evolution-and-art\/\"},\"wordCount\":1354,\"publisher\":{\"@id\":\"https:\/\/www.embl.org\/news\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.embl.org\/news\/people-perspectives\/we-are-embl-jana-helsen-on-the-bridging-excellence-fellowship-chromosomal-evolution-and-art\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.embl.org\/news\/wp-content\/uploads\/2024\/08\/Jana-Helsen-EMBL-01-m-e1724665027117.jpg\",\"keywords\":[\"art\",\"bridging excellence fellowship\",\"cell division\",\"chromosome\",\"dey\",\"evolution\",\"heidelberg\",\"life science alliance\",\"postdoc\",\"stanford\",\"we are embl\",\"women in science\",\"yeast\"],\"articleSection\":[\"People &amp; 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