{"id":34409,"date":"2022-04-26T00:00:02","date_gmt":"2022-04-26T07:00:02","guid":{"rendered":"https:\/\/vermont.salk.edu\/?post_type=disclosure&p=34409"},"modified":"2024-01-30T14:25:18","modified_gmt":"2024-01-30T22:25:18","slug":"cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever","status":"publish","type":"disclosure","link":"https:\/\/www.salk.edu\/zh\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/","title":{"rendered":"Cellular regeneration therapy restores damaged liver tissue faster than ever"},"content":{"rendered":"
\"Liver
Liver cells were partially reprogrammed into younger cells (red) using Yamanaka factors (white). The cell nuclei (blue) and cytoskeletal proteins (green) are also shown.
Click here<\/a> for a high-resolution image.
Credit: Salk Institute<\/figcaption><\/figure>\n

LA JOLLA\u2014Mammals can\u2019t typically regenerate organs as efficiently as other vertebrates, such as fish and lizards. Now, Salk scientists have found a way to partially reset liver cells to more youthful states\u2014allowing them to heal damaged tissue at a faster rate than previously observed. The results, published in Cell Reports <\/em><\/a>on April 26, 2022, reveal that the use of reprogramming molecules can improve cell growth, leading to better liver tissue regeneration in mice.<\/p>\n

\u201cWe are excited to make strides at repairing cells of damaged livers because, someday, approaches like this could be extended to replacing the whole organ itself,\u201d says corresponding author Juan Carlos Izpisua Belmonte<\/a>, a professor in Salk\u2019s Gene Expression Laboratory and holder of the Roger Guillemin Chair. \u201cOur findings could lead to the development of new therapies for infection, cancer and genetic liver diseases as well as metabolic diseases like nonalcoholic steatohepatitis (NASH).\u201d<\/p>\n

The authors previously showed how four cellular reprogramming molecules\u2014Oct-3\/4, Sox2, Klf4 and c-Myc, also called \u201cYamanaka factors\u201d\u2014can slow down the aging process<\/a> as well as improve muscle tissue regeneration capacity in mice. In their latest study, the authors used Yamanaka factors to see if they could increase liver size and improve liver function while extending the health span of the mice. The process involves partially converting mature liver cells back to \u201cyounger\u201d states, which promotes cell growth.<\/p>\n

\"From
From left: Concepcion Rodriquez Esteban, Juan Carlos Izpisua Belmonte and Tomoaki Hishida.
Click here<\/a> for a high-resolution image.
Credit: Salk Institute<\/figcaption><\/figure>\n

\u201cUnlike most of our other organs, the liver is more effective at repairing damaged tissue,\u201d says co-first author Mako Yamamoto, a staff researcher in the Izpisua Belmonte lab. \u201cTo find out if mammalian tissue regeneration could be enhanced, we tested the efficacy of Yamanaka factors in a mouse liver model.\u201d<\/p>\n

The issue many researchers in the field face is how to control the expression of factors needed for improving cell function and rejuvenation as some of these molecules can cause rampant cell growth, such as occurs in cancer. To circumvent this, Izpisua Belmonte\u2019s team used a short-term Yamanaka factor protocol, where the mice had their treatment administered for only one day. The team then tracked the activity of the partially reprogrammed liver cells by taking periodic samples and closely monitoring how cells divided over several generations. Even after nine months\u2013\u2013roughly a third of the animal\u2019s life span\u2013\u2013 none of the mice had tumors.<\/p>\n

\u201cYamanaka factors are truly a double-edged sword,\u201d says co-first author Tomoaki Hishida, a former postdoctoral fellow in the Izpisua Belmonte lab and current associate professor at Wakayama Medical University in Japan. \u201cOn the one hand, they have the potential to enhance liver regeneration in damaged tissue, but the downside is that they can cause tumors. We were excited to find that our short-term induction protocol has the good effects without the bad\u2014improved regeneration and no cancer.\u201d<\/p>\n

\"Mako
Mako Yamamoto.
Click here<\/a> for a high-resolution image.
Credit: Salk Institute<\/figcaption><\/figure>\n

The scientists made a second discovery while studying this reprogramming mechanism in a lab dish: A gene called Top2a <\/em>is involved in liver cell reprogramming and is highly active one day after short-term Yamanaka factor treatment. Top2a<\/em> encodes Topoisomerase 2a, an enzyme that helps break up and rejoin DNA strands. When the researchers blocked the gene, which lowered Topoisomerase 2a levels, they saw a 40-fold reduction in cellular reprogramming rates, leading to far fewer young cells. The exact role that Top2a<\/em> plays in this process remains a future area of research.<\/p>\n

\u201cThere is still much work to be done before we can fully understand the molecular basis underlying cellular rejuvenation programming approaches,” says Izpisua Belmonte. “This is a necessary requirement for developing effective and universal medical treatments and reversing the effects of human disease.”<\/p>\n

Izpisua Belmonte is currently Institute Director of Altos Labs Inc., in addition to being a professor at the Salk Institute.<\/p>\n

This work was supported by a Uehara Memorial Foundation research fellowship UCAM and Fundacion Dr. Pedro Guillen.<\/p>\n

Other authors included Yuriko Hishida-Nozaki, Changwei Shao, Ling Huang, Chao Wang, Kensaku Shojima, Yuan Xue, Yuqing Hang, Maxim Shokhirev, Sebastian Memczak, Sanjeeb Kumar Sahu, Fumiyuki Hatanaka, Ruben Rabadan Ros, Matthew B. Maxwell, Jasmine Chavez, Yanjiao Shao, Hsin-Kai Liao, Paloma Martinez-Redondo, Isabel Guillen-Guillen, Reyna Hernandez-Benitez, Concepcion Rodriguez Esteban, Yang Yu, Diana C. Hargreaves, and Pradeep Reddy of Salk; Guang-Hui Liu and Jing Qu of the Chinese Academy of Sciences; Michael Holmes, Fei Yi and Raymond D. Hickey of Ambys Medicines; Pedro Guillen Garcia of Cl\u00ednica CEMTRO; Estrella Nu\u00f1ez Delicado of Universidad Cat\u00f3lica San Antonio de Murcia; Antoni Castells and Josep Campistol of Hospital Clinic of Barcelona; and Akihiro Asai of Cincinnati Children\u2019s Hospital Medical Center.<\/p>","protected":false},"featured_media":34447,"template":"","faculty":[85],"disease-research":[46,333,146,366,335],"class_list":["post-34409","disclosure","type-disclosure","status-publish","has-post-thumbnail","hentry","faculty-juan-carlos-izpisua-belmonte","disease-research-cancer-biology","disease-research-genetics","disease-research-aging-and-regenerative-medicine","disease-research-infectious-disease","disease-research-regeneration"],"acf":[],"yoast_head":"\nCellular regeneration therapy restores damaged liver tissue faster than ever - Salk Institute for Biological Studies<\/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.salk.edu\/zh\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cellular regeneration therapy restores damaged liver tissue faster than ever - Salk Institute for Biological Studies\" \/>\n<meta property=\"og:description\" content=\"Liver cells were partially reprogrammed into younger cells (red) using Yamanaka factors (white). The cell nuclei (blue) and cytoskeletal proteins (green) are also shown.Click here for a high-resolution image.Credit: Salk Institute LA JOLLA\u2014Mammals can\u2019t typically regenerate organs as efficiently as other vertebrates, such as fish and lizards. Now, Salk scientists have found a way to partially reset liver cells to more youthful states\u2014allowing them to heal damaged tissue at a faster rate than previously observed. The results, published in Cell Reports on April 26, 2022, reveal that the use of reprogramming molecules can improve cell growth, leading to better liver tissue regeneration in mice.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.salk.edu\/zh\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/\" \/>\n<meta property=\"og:site_name\" content=\"Salk Institute for Biological Studies\" \/>\n<meta property=\"article:modified_time\" content=\"2024-01-30T22:25:18+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.salk.edu\/wp-content\/uploads\/2022\/04\/Unknown.png\" \/>\n\t<meta property=\"og:image:width\" content=\"700\" \/>\n\t<meta property=\"og:image:height\" content=\"703\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\\\/\",\"url\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\\\/\",\"name\":\"Cellular regeneration therapy restores damaged liver tissue faster than ever - Salk Institute for Biological Studies\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2022\\\/04\\\/Unknown.png\",\"datePublished\":\"2022-04-26T07:00:02+00:00\",\"dateModified\":\"2024-01-30T22:25:18+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\\\/#breadcrumb\"},\"inLanguage\":\"zh-CN\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-CN\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2022\\\/04\\\/Unknown.png\",\"contentUrl\":\"https:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2022\\\/04\\\/Unknown.png\",\"width\":700,\"height\":703,\"caption\":\"Liver cells were partially reprogrammed into younger cells (red) using Yamanaka factors (white). The cell nuclei (blue) and cytoskeletal proteins (green) are also shown.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/news-release\\\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.salk.edu\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Cellular regeneration therapy restores damaged liver tissue faster than ever\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#website\",\"url\":\"https:\\\/\\\/www.salk.edu\\\/\",\"name\":\"Salk Institute for Biological Studies\",\"description\":\"The Power of Science\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.salk.edu\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"zh-CN\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#organization\",\"name\":\"Salk Institute for Biological Studies\",\"url\":\"https:\\\/\\\/www.salk.edu\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-CN\",\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"http:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/salk_logo_696.jpg\",\"contentUrl\":\"http:\\\/\\\/www.salk.edu\\\/wp-content\\\/uploads\\\/2023\\\/03\\\/salk_logo_696.jpg\",\"width\":696,\"height\":696,\"caption\":\"Salk Institute for Biological Studies\"},\"image\":{\"@id\":\"https:\\\/\\\/www.salk.edu\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Cellular regeneration therapy restores damaged liver tissue faster than ever - Salk Institute for Biological Studies","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.salk.edu\/zh\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/","og_locale":"zh_CN","og_type":"article","og_title":"Cellular regeneration therapy restores damaged liver tissue faster than ever - Salk Institute for Biological Studies","og_description":"Liver cells were partially reprogrammed into younger cells (red) using Yamanaka factors (white). The cell nuclei (blue) and cytoskeletal proteins (green) are also shown.Click here for a high-resolution image.Credit: Salk Institute LA JOLLA\u2014Mammals can\u2019t typically regenerate organs as efficiently as other vertebrates, such as fish and lizards. Now, Salk scientists have found a way to partially reset liver cells to more youthful states\u2014allowing them to heal damaged tissue at a faster rate than previously observed. The results, published in Cell Reports on April 26, 2022, reveal that the use of reprogramming molecules can improve cell growth, leading to better liver tissue regeneration in mice.","og_url":"https:\/\/www.salk.edu\/zh\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/","og_site_name":"Salk Institute for Biological Studies","article_modified_time":"2024-01-30T22:25:18+00:00","og_image":[{"width":700,"height":703,"url":"https:\/\/www.salk.edu\/wp-content\/uploads\/2022\/04\/Unknown.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.salk.edu\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/","url":"https:\/\/www.salk.edu\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/","name":"Cellular regeneration therapy restores damaged liver tissue faster than ever - Salk Institute for Biological Studies","isPartOf":{"@id":"https:\/\/www.salk.edu\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.salk.edu\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/#primaryimage"},"image":{"@id":"https:\/\/www.salk.edu\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/#primaryimage"},"thumbnailUrl":"https:\/\/www.salk.edu\/wp-content\/uploads\/2022\/04\/Unknown.png","datePublished":"2022-04-26T07:00:02+00:00","dateModified":"2024-01-30T22:25:18+00:00","breadcrumb":{"@id":"https:\/\/www.salk.edu\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/#breadcrumb"},"inLanguage":"zh-CN","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.salk.edu\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/"]}]},{"@type":"ImageObject","inLanguage":"zh-CN","@id":"https:\/\/www.salk.edu\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/#primaryimage","url":"https:\/\/www.salk.edu\/wp-content\/uploads\/2022\/04\/Unknown.png","contentUrl":"https:\/\/www.salk.edu\/wp-content\/uploads\/2022\/04\/Unknown.png","width":700,"height":703,"caption":"Liver cells were partially reprogrammed into younger cells (red) using Yamanaka factors (white). The cell nuclei (blue) and cytoskeletal proteins (green) are also shown."},{"@type":"BreadcrumbList","@id":"https:\/\/www.salk.edu\/news-release\/cellular-regeneration-therapy-restores-damaged-liver-tissue-faster-than-ever\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.salk.edu\/"},{"@type":"ListItem","position":2,"name":"Cellular regeneration therapy restores damaged liver tissue faster than ever"}]},{"@type":"WebSite","@id":"https:\/\/www.salk.edu\/#website","url":"https:\/\/www.salk.edu\/","name":"\u7d22\u5c14\u514b\u751f\u7269\u7814\u7a76\u6240","description":"The Power of Science","publisher":{"@id":"https:\/\/www.salk.edu\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.salk.edu\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"zh-CN"},{"@type":"Organization","@id":"https:\/\/www.salk.edu\/#organization","name":"\u7d22\u5c14\u514b\u751f\u7269\u7814\u7a76\u6240","url":"https:\/\/www.salk.edu\/","logo":{"@type":"ImageObject","inLanguage":"zh-CN","@id":"https:\/\/www.salk.edu\/#\/schema\/logo\/image\/","url":"http:\/\/www.salk.edu\/wp-content\/uploads\/2023\/03\/salk_logo_696.jpg","contentUrl":"http:\/\/www.salk.edu\/wp-content\/uploads\/2023\/03\/salk_logo_696.jpg","width":696,"height":696,"caption":"Salk Institute for Biological Studies"},"image":{"@id":"https:\/\/www.salk.edu\/#\/schema\/logo\/image\/"}}]}},"ACF":{"hero":"https:\/\/www.salk.edu\/wp-content\/uploads\/2022\/04\/liver-cells-header.jpg","line_1":"Cellular regeneration therapy restores damaged liver tissue faster than ever","line_2":"Salk scientists improve liver regeneration in mice, which could lead to new treatments for liver disease","poster_quote":"","paper_url":"https:\/\/www.cell.com\/cell-reports\/fulltext\/S2211-1247(22)00491-0","journal_title":"Cell Reports","paper_author_list":"Tomoaki Hishida, Mako Yamamoto, Yuriko Hishida-Nozaki, Changwei Shao, Ling Huang, Chao Wang, Kensaku Shojima, Yuan Xue, Yuqing Hang, Maxim Shokhirev, Sebastian Memczak, Sanjeeb Kumar Sahu, Fumiyuki Hatanaka, Ruben Rabadan Ros, Matthew B. Maxwell, Jasmine Chavez, Yanjiao Shao, Hsin-Kai Liao, Paloma Martinez-Redondo, Isabel Guillen-Guillen, Reyna Hernandez-Benitez, Concepcion Rodriguez Esteban, Jing Qu, Michael Holmes, Fei Yi, Raymond D. Hickey, Pedro Guillen Garcia, Estrella Nu\u00f1ez Delicado, Antoni Castells, Josep M. Campistol, Yang Yu, Diana C. Hargreaves, Akihiro Asai, Pradeep Reddy, Guang-Hui Liu, Juan Carlos Izpisua Belmonte","doi":"0.1016\/j.celrep.2022.110730","paper_title":"In vivo partial cellular reprogramming enhances liver plasticity and regeneration","subhead":"Salk scientists improve liver regeneration in mice, which could lead to new treatments for liver disease","home_photo":"","listing_photo":"","legacy_boilerplate":[],"hide_boilerplate":[],"disable_date":false,"listing_excerpt":"<p>LA JOLLA\u2014Mammals can\u2019t typically regenerate organs as efficiently as other vertebrates, such as fish and lizards. Now, Salk scientists have found a way to partially reset liver cells to more youthful states\u2014allowing them to heal damaged tissue at a faster rate than previously observed. The results, published in Cell Reports on April 26, 2022, reveal that the use of reprogramming molecules can improve cell growth, leading to better liver tissue regeneration in mice.<\/p>\n","descriptive_blurb":"","has_journal_cover":false,"og_image_override":false,"gallery":false},"_links":{"self":[{"href":"https:\/\/www.salk.edu\/zh\/wp-json\/wp\/v2\/disclosure\/34409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.salk.edu\/zh\/wp-json\/wp\/v2\/disclosure"}],"about":[{"href":"https:\/\/www.salk.edu\/zh\/wp-json\/wp\/v2\/types\/disclosure"}],"version-history":[{"count":8,"href":"https:\/\/www.salk.edu\/zh\/wp-json\/wp\/v2\/disclosure\/34409\/revisions"}],"predecessor-version":[{"id":34458,"href":"https:\/\/www.salk.edu\/zh\/wp-json\/wp\/v2\/disclosure\/34409\/revisions\/34458"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.salk.edu\/zh\/wp-json\/wp\/v2\/media\/34447"}],"wp:attachment":[{"href":"https:\/\/www.salk.edu\/zh\/wp-json\/wp\/v2\/media?parent=34409"}],"wp:term":[{"taxonomy":"faculty","embeddable":true,"href":"https:\/\/www.salk.edu\/zh\/wp-json\/wp\/v2\/faculty?post=34409"},{"taxonomy":"disease-research","embeddable":true,"href":"https:\/\/www.salk.edu\/zh\/wp-json\/wp\/v2\/disease-research?post=34409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}