{"id":3577,"date":"2025-04-25T12:36:58","date_gmt":"2025-04-25T12:36:58","guid":{"rendered":"https:\/\/ventil.rs\/blog\/health\/exposure-to-toxin-increases-colorectal-cancer-risk-among-younger-adults-study-finds\/"},"modified":"2025-04-25T12:36:58","modified_gmt":"2025-04-25T12:36:58","slug":"exposure-to-toxin-increases-colorectal-cancer-risk-among-younger-adults-study-finds","status":"publish","type":"post","link":"https:\/\/ventil.rs\/blog\/health\/exposure-to-toxin-increases-colorectal-cancer-risk-among-younger-adults-study-finds\/","title":{"rendered":"Exposure to toxin increases colorectal cancer risk among younger adults, study finds"},"content":{"rendered":"<p> <br \/>\n<\/p>\n<div>\n<p class=\"speakable\">Amid the alarming trend of <a href=\"https:\/\/www.foxnews.com\/category\/health\/cancer\/colon-cancer\" target=\"_blank\" rel=\"noopener\">colorectal cancer cases<\/a> rising among young people, a new study has pinpointed a potential source.<\/p>\n<p class=\"speakable\">Researchers from University of California San Diego have linked a bacterial toxin called colibactin to the increase in early-onset cases.<\/p>\n<p>Colibactin is produced by certain strains of Escherichia coli (E. coli) that exist in the colon and rectum, according to the researchers.<\/p>\n<p><a href=\"https:\/\/www.foxnews.com\/health\/colorectal-cancer-risk-reduced-common-vitamin-study-suggests\" target=\"_blank\" rel=\"noopener\"><strong><u>COLORECTAL CANCER RISK REDUCED BY THIS COMMON VITAMIN, STUDY SUGGESTS<\/u><\/strong><\/a><\/p>\n<p>Exposure to the bacterial toxin during early childhood can alter the DNA of colon cells in a way that increases the risk of developing <a href=\"https:\/\/www.foxnews.com\/category\/health\/cancer\" target=\"_blank\" rel=\"noopener\">colorectal cancer<\/a> before age 50, the study found.<\/p>\n<div class=\"image-ct inline\">\n<div class=\"m\"><picture><source media=\"(max-width: 767px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2018\/09\/343\/192\/istock-648181930.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2018\/09\/686\/384\/istock-648181930.jpg?ve=1&amp;tl=1 2x\" height=\"192\" width=\"343\"><source media=\"(min-width: 768px) and (max-width: 1023px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2018\/09\/672\/378\/istock-648181930.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2018\/09\/1344\/756\/istock-648181930.jpg?ve=1&amp;tl=1 2x\" height=\"378\" width=\"672\"><source media=\"(min-width: 1024px) and (max-width: 1279px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2018\/09\/931\/523\/istock-648181930.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2018\/09\/1862\/1046\/istock-648181930.jpg?ve=1&amp;tl=1 2x\" height=\"523\" width=\"931\"><source media=\"(min-width: 1280px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2018\/09\/720\/405\/istock-648181930.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2018\/09\/1440\/810\/istock-648181930.jpg?ve=1&amp;tl=1 2x\" height=\"405\" width=\"720\"><\/source><\/source><\/source><\/source><\/picture><\/div>\n<div class=\"info\">\n<div class=\"caption\">\n<p><span>In the study, the researchers analyzed 981 colorectal cancer genomes from early-onset and late-onset colorectal cancer patients across 11 countries.\u00a0<\/span> <span>(iStock)<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>The study, which was funded by Cancer Research UK, was published in the journal Nature on April 23.<\/p>\n<p>&#8220;The key takeaway is that exposure to colibactin is likely a major contributor to early-onset colorectal cancer,&#8221; senior author Ludmil Alexandrov, professor in the Shu Chien-Gene Lay Department of Bioengineering and the Department of Cellular and Molecular Medicine at UC San Diego, told Fox News Digital.<\/p>\n<blockquote class=\"pull-quote\">\n<p class=\"quote-text\">&#8220;They could be decades ahead of schedule for developing colorectal cancer.&#8221;<\/p>\n<p> <!----><\/p><\/blockquote>\n<p>In the study, the researchers analyzed 981 colorectal cancer genomes from early-onset and late-onset colorectal cancer patients across 11 countries.\u00a0<\/p>\n<p>Those who had prior exposure to colibactin were found to have specific mutations in their DNA, which have been shown to mainly occur in the <a href=\"https:\/\/www.foxnews.com\/category\/health\/healthy-living\/childrens-health\" target=\"_blank\" rel=\"noopener\">first decade of life<\/a> \u2014 &#8220;placing children on an accelerated path to developing cancer as young adults.&#8221;<\/p>\n<div class=\"image-ct inline\">\n<div class=\"m\"><picture><source media=\"(max-width: 767px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2024\/03\/343\/192\/prostate-cancer-treatment.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2024\/03\/686\/384\/prostate-cancer-treatment.jpg?ve=1&amp;tl=1 2x\" height=\"192\" width=\"343\"><source media=\"(min-width: 768px) and (max-width: 1023px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2024\/03\/672\/378\/prostate-cancer-treatment.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2024\/03\/1344\/756\/prostate-cancer-treatment.jpg?ve=1&amp;tl=1 2x\" height=\"378\" width=\"672\"><source media=\"(min-width: 1024px) and (max-width: 1279px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2024\/03\/931\/523\/prostate-cancer-treatment.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2024\/03\/1862\/1046\/prostate-cancer-treatment.jpg?ve=1&amp;tl=1 2x\" height=\"523\" width=\"931\"><source media=\"(min-width: 1280px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2024\/03\/720\/405\/prostate-cancer-treatment.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2024\/03\/1440\/810\/prostate-cancer-treatment.jpg?ve=1&amp;tl=1 2x\" height=\"405\" width=\"720\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2024\/03\/1200\/675\/prostate-cancer-treatment.jpg?ve=1&amp;tl=1\" alt=\"Man cancer treatment\" width=\"1200\" height=\"675\"\/><\/source><\/source><\/source><\/source><\/picture><\/div>\n<div class=\"info\">\n<div class=\"caption\">\n<p><span>Exposure to the bacterial toxin during early childhood can alter the DNA of colon cells in a way that increases the risk of developing colorectal cancer before age 50, the study found.<\/span> <span>(iStock)<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>That group was 3.3 times more likely to develop early-onset colorectal cancer compared to those who were diagnosed after 70.<\/p>\n<p>These mutations were found to make up 15% of the early <a href=\"https:\/\/www.foxnews.com\/category\/genetics\" target=\"_blank\" rel=\"noopener\">genetic alterations<\/a> that increase colorectal cancer risk.<\/p>\n<p><a href=\"https:\/\/www.foxnews.com\/health\/woman-says-chatgpt-saved-her-life-helping-detect-cancer-which-doctors-missed\" target=\"_blank\" rel=\"noopener\"><strong><u>WOMAN SAYS CHATGPT SAVED HER LIFE BY HELPING DETECT CANCER, WHICH DOCTORS MISSED<\/u><\/strong><\/a><\/p>\n<p>&#8220;We detected the mutational signature of colibactin in over 50% of colorectal tumors from patients under 40, compared to less than 10% in tumors from older individuals,&#8221; Alexandrov noted.<\/p>\n<p>&#8220;If someone acquires one of these driver mutations by the time they\u2019re 10 years old, they could be decades ahead of schedule for developing colorectal cancer, getting it at age 40 instead of 60,&#8221; noted Alexandrov.<\/p>\n<p>The fact that a microbial exposure in the first few years of life can leave a &#8220;lasting genomic imprint&#8221; and likely <a href=\"https:\/\/www.foxnews.com\/category\/health\/medical-research\/cancer-research\" target=\"_blank\" rel=\"noopener\">contribute to cancer<\/a> in adulthood is both &#8220;remarkable and sobering,&#8221; according to the researcher.\u00a0<\/p>\n<p>&#8220;It\u2019s a reminder that there are likely many other such exposures we\u2019ve yet to uncover, and that the way we nurture and protect children during these formative years may have long-term implications for their lifelong health,&#8221; he told Fox News Digital.\u00a0<\/p>\n<p><a href=\"https:\/\/www.foxnews.com\/health\/reality-star-shares-deadly-melanoma-update-doctors-discuss-prognosis\" target=\"_blank\" rel=\"noopener\"><strong><u>REALITY STAR SHARES DEADLY MELANOMA UPDATE AS DOCTORS DISCUSS PROGNOSIS<\/u><\/strong><\/a><\/p>\n<p>&#8220;From my perspective, investing in early-life prevention, <a href=\"https:\/\/www.foxnews.com\/category\/health\/healthy-living\" target=\"_blank\" rel=\"noopener\">healthy living<\/a> and research is not just important \u2014 it\u2019s essential.&#8221;<\/p>\n<p>Dr. Emil Lou, MD, PhD, a board-certified oncologist and internal medicine physician at the University of Minnesota, agrees that the microbiome \u2013 &#8220;the constellation of microbes that includes bacteria that live under normal circumstances in our gut&#8221; \u2014 is one potential culprit of early-onset colorectal cancer.<\/p>\n<p><a href=\"https:\/\/www.foxnews.com\/apps-products?pid=AppArticleLink\" target=\"_blank\" rel=\"noopener\"><strong><u>CLICK HERE TO GET THE FOX NEWS APP<\/u><\/strong><\/a><\/p>\n<p>&#8220;It is less surprising now than it was a decade ago that any <a href=\"https:\/\/www.foxnews.com\/category\/science\/wild-nature\/bacteria\" target=\"_blank\" rel=\"noopener\">form of bacteria<\/a> \u2013 more specifically, a toxin derived from bacteria \u2013 could be associated with and potentially be the primary cause of cancer,&#8221; Lou, who was not involved in the study, told Fox News Digital.\u00a0<\/p>\n<p>&#8220;What is especially concerning is the long period of time that might lapse between exposure to the bacteria early in life, and the time before the related cancer is diagnosed.&#8221;<\/p>\n<h2><strong>Potential limitations<\/strong><\/h2>\n<p>Alexandrov pointed out that the study provides &#8220;strong genomic evidence&#8221; of a &#8220;striking association&#8221; between colibactin and early-onset colorectal cancer, but cannot prove causation.\u00a0<\/p>\n<p>&#8220;Demonstrating unequivocal causality \u2014 proving that colibactin alone is sufficient to initiate cancer in humans \u2014 remains a significant challenge,&#8221; he told Fox News Digital.<\/p>\n<div class=\"image-ct inline\">\n<div class=\"m\"><picture><source media=\"(max-width: 767px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2022\/03\/343\/192\/Colorectal-Cancer.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2022\/03\/686\/384\/Colorectal-Cancer.jpg?ve=1&amp;tl=1 2x\" height=\"192\" width=\"343\"><source media=\"(min-width: 768px) and (max-width: 1023px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2022\/03\/672\/378\/Colorectal-Cancer.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2022\/03\/1344\/756\/Colorectal-Cancer.jpg?ve=1&amp;tl=1 2x\" height=\"378\" width=\"672\"><source media=\"(min-width: 1024px) and (max-width: 1279px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2022\/03\/931\/523\/Colorectal-Cancer.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2022\/03\/1862\/1046\/Colorectal-Cancer.jpg?ve=1&amp;tl=1 2x\" height=\"523\" width=\"931\"><source media=\"(min-width: 1280px)\" srcset=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2022\/03\/720\/405\/Colorectal-Cancer.jpg?ve=1&amp;tl=1, https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2022\/03\/1440\/810\/Colorectal-Cancer.jpg?ve=1&amp;tl=1 2x\" height=\"405\" width=\"720\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/a57.foxnews.com\/static.foxnews.com\/foxnews.com\/content\/uploads\/2022\/03\/1200\/675\/Colorectal-Cancer.jpg?ve=1&amp;tl=1\" alt=\"Colorectal cancer\" width=\"1200\" height=\"675\"\/><\/source><\/source><\/source><\/source><\/picture><\/div>\n<div class=\"info\">\n<div class=\"caption\">\n<p><span>Colorectal cancer cases have doubled among adults under 50 for each of the past two decades, statistics show.<\/span> <span>(iStock)<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n<p>&#8220;Definitive proof of causality would require long-term prospective studies beginning in early childhood to monitor microbial colonization and track cancer development over several decades.&#8221;<\/p>\n<p>Lou agreed with this limitation, noting the complexity of cancer factors.<\/p>\n<p><a href=\"https:\/\/www.foxnews.com\/newsletters?cmpid=fnfirstnl\" target=\"_blank\" rel=\"noopener\"><strong><u>CLICK HERE TO SIGN UP FOR OUR HEALTH NEWSLETTER<\/u><\/strong><\/a><\/p>\n<p>&#8220;There are many aspects of our environment \u2013 both within and outside of our bodies \u2013 that can play a role in development of cancer,&#8221; he said. &#8220;It is difficult to say or conclude whether any given single factor \u2013 in this case, the bacteria-derived toxin \u2013 is the true or even a major cause of colorectal cancer.&#8221;<\/p>\n<p>&#8220;Providing evidence of potential association sets the foundation for more <a href=\"https:\/\/www.foxnews.com\/category\/health\/medical-research\" target=\"_blank\" rel=\"noopener\">in-depth studies<\/a> to determine whether there is true cause and effect,&#8221; Lou added.<\/p>\n<blockquote class=\"pull-quote\">\n<p class=\"quote-text\">&#8220;If current trends continue, colorectal cancer is projected to become the leading cause of cancer-related death among young adults by 2030.&#8221;<\/p>\n<p> <!----><\/p><\/blockquote>\n<p>Alexandrov noted that while the findings don\u2019t yet warrant changes to screening or <a href=\"https:\/\/www.foxnews.com\/category\/health\/health-care\" target=\"_blank\" rel=\"noopener\">treatment guidelines<\/a>, they do highlight the &#8220;critical role of early-life microbial exposures&#8221; in terms of long-term cancer risk.\u00a0<\/p>\n<p>&#8220;We are actively working on developing screening tests to detect the long-term effects of colibactin exposure, with the goal of translating these findings into practical prevention strategies in the near future,&#8221; he added.<\/p>\n<p><a href=\"https:\/\/www.foxnews.com\/health\" target=\"_blank\" rel=\"noopener\"><i><strong><u>For more Health articles, visit\u00a0www.foxnews.com\/health<\/u><\/strong><\/i><\/a><\/p>\n<p>Colorectal cancer cases have doubled among adults under 50 for each of the past two decades, statistics show.<\/p>\n<p>&#8220;If current trends continue, colorectal cancer is projected to become the leading cause of cancer-related death among young adults by 2030,&#8221; the researchers concluded.<\/p>\n<p> <!----> <\/p>\n<div class=\"article-meta\">\n<div class=\"author-bio\">\n<p>Melissa Rudy is senior health editor and a member of the lifestyle team at Fox News Digital. Story tips can be sent to melissa.rudy@fox.com.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<p><br \/>\n<br \/><a href=\"https:\/\/www.foxnews.com\/health\/exposure-toxin-increases-colorectal-cancer-risk-younger-adults-study-finds\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Amid the alarming trend of colorectal cancer cases rising among young people, a new study has pinpointed a potential source. Researchers from University of California San Diego have linked a bacterial toxin called colibactin to the increase in early-onset cases. Colibactin is produced by certain strains of Escherichia coli (E. coli) that exist in the&#8230;<\/p>\n<p class=\"more-link-wrap\"><a href=\"https:\/\/ventil.rs\/blog\/health\/exposure-to-toxin-increases-colorectal-cancer-risk-among-younger-adults-study-finds\/\" class=\"more-link\">Read More<span class=\"screen-reader-text\"> &ldquo;Exposure to toxin increases colorectal cancer risk among younger adults, study finds&rdquo;<\/span> &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":3578,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/static.foxnews.com\/foxnews.com\/content\/uploads\/2018\/09\/istock-648181930.jpg","fifu_image_alt":"","footnotes":""},"categories":[4],"tags":[],"class_list":["post-3577","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v17.8 (Yoast SEO v22.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Exposure to toxin increases colorectal cancer risk among younger adults, study finds - Breaking News<\/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:\/\/ventil.rs\/blog\/health\/exposure-to-toxin-increases-colorectal-cancer-risk-among-younger-adults-study-finds\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Exposure to toxin increases colorectal cancer risk among younger adults, study finds\" \/>\n<meta property=\"og:description\" content=\"Amid the alarming trend of colorectal cancer cases rising among young people, a new study has pinpointed a potential source. Researchers from University of California San Diego have linked a bacterial toxin called colibactin to the increase in early-onset cases. 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Researchers from University of California San Diego have linked a bacterial toxin called colibactin to the increase in early-onset cases. 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