{"id":927,"date":"2026-02-26T00:16:36","date_gmt":"2026-02-26T08:16:36","guid":{"rendered":"https:\/\/www.getasecondopinion.ai\/blog\/?p=927"},"modified":"2026-02-26T00:16:38","modified_gmt":"2026-02-26T08:16:38","slug":"a-new-path-to-stopping-epstein-barr-virus-how-scientists-created-human-antibodies-that-block-infection","status":"publish","type":"post","link":"https:\/\/www.getasecondopinion.ai\/blog\/news\/a-new-path-to-stopping-epstein-barr-virus-how-scientists-created-human-antibodies-that-block-infection\/","title":{"rendered":"A New Path to Stopping Epstein\u2011Barr Virus: How Scientists Created Human Antibodies That Block Infection"},"content":{"rendered":"\n<p>Epstein\u2011Barr virus (EBV) is one of the most common viruses on Earth, yet it rarely makes headlines. Most people catch it at some point in their lives, often without knowing it. But beneath its quiet reputation, EBV is linked to a surprising number of serious health problems &#8211; from infectious mononucleosis (\u201cmono\u201d) to certain cancers and even autoimmune diseases.<\/p>\n\n\n\n<p>A new study published in <em>Cell Reports Medicine<\/em> reveals a major step forward: scientists have created fully human antibodies in a special type of mouse that can block EBV from infecting cells. Even more importantly, these antibodies protected humanized mice from EBV infection, offering a potential path toward the first targeted therapy for this virus.<\/p>\n\n\n\n<p>For a virus that infects more than 90% of adults worldwide, this is a big deal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why EBV Matters More Than Most People Realize<\/strong><\/h2>\n\n\n\n<p>EBV is a member of the herpesvirus family, and like its relatives, it stays in the body for life once you\u2019re infected. For many people, it causes no symptoms. But for others, EBV can lead to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Infectious mononucleosis<\/strong> (\u201cmono\u201d), especially in teens and young adults<\/li>\n\n\n\n<li><strong>Certain cancers<\/strong>, including Hodgkin lymphoma, Burkitt lymphoma, and nasopharyngeal carcinoma<\/li>\n\n\n\n<li><strong>Autoimmune diseases<\/strong>, such as multiple sclerosis and lupus<\/li>\n\n\n\n<li><strong>Life\u2011threatening complications in transplant patients<\/strong>, including post\u2011transplant lymphoproliferative disease (PTLD)<\/li>\n<\/ul>\n\n\n\n<p>Globally, EBV is linked to over 350,000 cancer cases and more than 200,000 deaths every year.<\/p>\n\n\n\n<p>Despite this enormous impact, there is no EBV\u2011specific treatment or vaccine.<\/p>\n\n\n\n<p>That\u2019s why the new research is so significant: it shows that targeted antibodies &#8211; designed to block the virus from entering cells &#8211; could become a real tool for preventing EBV\u2011related disease.<\/p>\n\n\n\n<div class=\"wp-block-group unauthenticated invisible has-global-padding is-layout-constrained wp-container-core-group-is-layout-675f737c wp-block-group-is-layout-constrained\" style=\"padding-right:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-group cta-background has-background has-global-padding is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-64f51f8a wp-block-group-is-layout-constrained\" style=\"border-style:none;border-width:0px;border-radius:30px;background-color:#f6fffc;padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30);box-shadow:var(--wp--preset--shadow--natural);background-image:url(&apos;https:\/\/getasecondopinion.ai\/blog\/wp-content\/uploads\/2025\/10\/cta-background-03b.webp&apos;);background-position:100% 100%;background-repeat:no-repeat;background-size:contain;background-attachment:scroll;\">\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-container-core-group-is-layout-153751c2 wp-block-group-is-layout-constrained\" style=\"padding-bottom:10px\">\n<h3 class=\"wp-block-heading has-text-align-center has-accent-1-color has-text-color has-link-color has-large-font-size wp-elements-9363713a6feba58457096f3ce3e67f32\">Stop Overpaying for Meds.<\/h3>\n\n\n\n<p>Coupons aren\u2019t your only option &#8211; see if safer, more effective, and lower-cost alternatives are available. It\u2019s fast, personalized, and 100% free. <strong><a href=\"https:\/\/getasecondopinion.ai\/intro-summary\" target=\"_blank\" rel=\"noreferrer noopener\">Learn More \u2192<\/a><\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How EBV Infects the Body<\/strong><\/h2>\n\n\n\n<p>To understand why these new antibodies matter, it helps to know how EBV gets into cells.<\/p>\n\n\n\n<p>EBV mainly infects two types of cells:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B cells<\/strong>, which are part of the immune system<\/li>\n\n\n\n<li><strong>Epithelial cells<\/strong>, which line surfaces like the throat and nose<\/li>\n<\/ul>\n\n\n\n<p>To enter these cells, EBV uses two key \u201cgrappling hooks\u201d on its surface:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>gp350<\/strong> \u2013 helps the virus attach to B cells<\/li>\n\n\n\n<li><strong>gp42<\/strong> \u2013 helps the virus fuse with B cells and complete infection<\/li>\n<\/ol>\n\n\n\n<p>If you block either of these proteins, you can stop the virus from getting inside.<\/p>\n\n\n\n<p>The challenge? Most existing antibodies that target gp350 or gp42 are <strong>not fully human<\/strong>, meaning they can trigger immune reactions if used as a therapy.<\/p>\n\n\n\n<p>The new study solves that problem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The Breakthrough: Human Antibodies Made in Transgenic Mice<\/strong><\/h2>\n\n\n\n<p>Researchers used a special type of mouse called <strong>ATX\u2011GK<\/strong>, engineered to produce <strong>human antibody genes<\/strong> instead of mouse ones. When these mice were immunized with EBV proteins, their immune systems created <strong>human\u2011like antibodies<\/strong> that could be used in people.<\/p>\n\n\n\n<p>From these mice, the team isolated:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Two antibodies targeting gp350<\/strong><\/li>\n\n\n\n<li><strong>Eight antibodies targeting gp42<\/strong><\/li>\n<\/ul>\n\n\n\n<p>These antibodies were then tested in a series of experiments to see how well they could block EBV infection.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What the Scientists Found<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. The antibodies strongly blocked EBV from infecting B cells<\/strong><\/h3>\n\n\n\n<p>The gp350 antibodies prevented the virus from attaching to the B\u2011cell receptor <strong>CD21<\/strong>, which is the first step in infection. One antibody, called <strong>ATX\u2011350\u20112<\/strong>, was especially potent &#8211; nearly as strong as the best existing anti\u2011EBV antibodies.<\/p>\n\n\n\n<p>The gp42 antibodies were even more impressive. Because gp42 is essential for EBV to fuse with B cells, blocking it shuts down infection at a critical step.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. The antibodies worked in multiple cell types<\/strong><\/h3>\n\n\n\n<p>EBV infects both immune cells and epithelial cells. The new antibodies were tested in both, and several showed strong neutralizing activity.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. The antibodies protected humanized mice from EBV infection<\/strong><\/h3>\n\n\n\n<p>This is the most important finding.<\/p>\n\n\n\n<p>When the researchers gave the gp42 antibody to mice engineered with human immune systems, then exposed them to EBV, the antibody:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Prevented detectable virus in the blood<\/li>\n\n\n\n<li>Prevented spleen enlargement (a hallmark of EBV infection)<\/li>\n\n\n\n<li>Prevented viral DNA from appearing in the spleen<\/li>\n<\/ul>\n\n\n\n<p>The gp350 antibody also helped, though not as completely.<\/p>\n\n\n\n<p>This is the first time fully human antibodies from a transgenic mouse have shown such strong protection against EBV.<\/p>\n\n\n\n<div class=\"wp-block-group is-style-default has-background has-global-padding is-layout-constrained wp-container-core-group-is-layout-384690f3 wp-block-group-is-layout-constrained\" style=\"background-color:#f0e9de;padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"530\" height=\"400\" src=\"https:\/\/www.getasecondopinion.ai\/blog\/wp-content\/uploads\/2026\/02\/directory-membership-benefits-1-e1770770324778.webp\" alt=\"\" class=\"wp-image-798\" style=\"object-fit:cover\"\/><\/figure>\n\n\n\n<div class=\"wp-block-buttons alignwide is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-a89b3969 wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button pattern-info discover_button_pattern is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link has-base-color has-text-color has-link-color has-text-align-center wp-element-button\" href=\"https:\/\/www.getasecondopinion.ai\/signup\" style=\"border-style:none;border-width:0px;padding-top:var(--wp--preset--spacing--20);padding-right:55px;padding-bottom:var(--wp--preset--spacing--20);padding-left:55px;font-style:normal;font-weight:500\" target=\"_blank\" rel=\"noreferrer noopener\">See Your Ranked Personalized Treatments<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why This Matters for Everyday People<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>EBV is far more than \u201cthe mono virus\u201d<\/strong><\/h3>\n\n\n\n<p>Most people think of EBV as a teenage rite of passage &#8211; something that causes fatigue and swollen glands for a few weeks. But research over the past decade has revealed a much more serious picture.<\/p>\n\n\n\n<p>EBV is strongly linked to:<\/p>\n\n\n\n<p><strong>Multiple sclerosis<\/strong>&nbsp;&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A landmark 2022 study of 10 million U.S. military personnel found that EBV infection increases MS risk <strong>32\u2011fold<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p><strong>Autoimmune diseases<\/strong>&nbsp;&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>EBV has been associated with lupus, rheumatoid arthritis, and other immune\u2011related conditions.<\/li>\n<\/ul>\n\n\n\n<p><strong>Cancers<\/strong>&nbsp;&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>EBV is the first virus ever proven to cause cancer in humans. It is responsible for several lymphomas and epithelial cancers.<\/li>\n<\/ul>\n\n\n\n<p><strong>Severe complications in transplant patients<\/strong>&nbsp;&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>People who receive organ or stem\u2011cell transplants are at high risk for EBV\u2011driven lymphomas because their immune systems are suppressed.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>There is currently no way to prevent EBV infection<\/strong><\/h3>\n\n\n\n<p>Unlike viruses such as HPV or hepatitis B, which have effective vaccines, EBV has no approved vaccine or antiviral therapy.<\/p>\n\n\n\n<p>That means:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Transplant patients remain vulnerable<\/li>\n\n\n\n<li>People with autoimmune disease risk factors have no preventive options<\/li>\n\n\n\n<li>EBV\u2011related cancers continue to occur worldwide<\/li>\n\n\n\n<li>The virus continues spreading silently through the population<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Antibody therapy could change that<\/strong><\/h3>\n\n\n\n<p>If these human antibodies can be developed into a safe therapy, they could:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Protect transplant patients from EBV\u2011driven lymphoma<\/li>\n\n\n\n<li>Reduce EBV transmission in high\u2011risk settings<\/li>\n\n\n\n<li>Potentially lower the risk of EBV\u2011linked autoimmune diseases<\/li>\n\n\n\n<li>Provide a bridge until an EBV vaccine is available<\/li>\n<\/ul>\n\n\n\n<p>This is similar to how monoclonal antibodies have been used to prevent RSV in infants or treat COVID\u201119 in high\u2011risk patients.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>How These Antibodies Could Be Used in the Future<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Preventing EBV in transplant patients<\/strong><\/h3>\n\n\n\n<p>This is the most immediate application. Transplant recipients often receive immune\u2011suppressing drugs, which makes them vulnerable to EBV\u2011driven cancers. A safe antibody therapy could dramatically reduce this risk.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Protecting EBV\u2011negative individuals<\/strong><\/h3>\n\n\n\n<p>A small percentage of adults remain EBV\u2011negative. For them, primary infection can be severe. Antibody therapy could offer temporary protection during high\u2011risk periods (e.g., college dorms, military training).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Supporting EBV vaccine development<\/strong><\/h3>\n\n\n\n<p>The study also identified new \u201cvulnerable spots\u201d on EBV proteins that could help guide vaccine design.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Treating EBV\u2011related diseases<\/strong><\/h3>\n\n\n\n<p>While this study focused on prevention, future versions of these antibodies might help treat EBV\u2011driven cancers or chronic EBV\u2011related conditions.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Why This Study Stands Out<\/strong><\/h2>\n\n\n\n<p>Several features make this research especially promising:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The antibodies are fully human, reducing the risk of immune reactions<\/li>\n\n\n\n<li>They target two different EBV entry proteins, increasing the chance of blocking infection<\/li>\n\n\n\n<li>They were tested in a realistic humanized mouse model<\/li>\n\n\n\n<li>They showed strong protection, not just lab\u2011based activity<\/li>\n\n\n\n<li>They reveal new structural details that can guide future therapies<\/li>\n<\/ul>\n\n\n\n<p>For a virus with no current treatment options, this represents a major step forward.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>What Comes Next<\/strong><\/h2>\n\n\n\n<p>Before these antibodies can be used in people, researchers will need to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Test them in more animal models<\/li>\n\n\n\n<li>Evaluate safety and dosing<\/li>\n\n\n\n<li>Explore combinations of gp350 and gp42 antibodies<\/li>\n\n\n\n<li>Begin early\u2011phase human trials<\/li>\n<\/ul>\n\n\n\n<p>But the foundation is now in place.<\/p>\n\n\n\n<p>For the first time, scientists have a set of fully human antibodies that can reliably block EBV infection in a living system.<\/p>\n\n\n\n<div class=\"wp-block-group unauthenticated invisible has-global-padding is-layout-constrained wp-container-core-group-is-layout-675f737c wp-block-group-is-layout-constrained\" style=\"padding-right:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30)\">\n<div class=\"wp-block-group cta-background has-custom-off-white-background-color has-background has-global-padding is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-64f51f8a wp-block-group-is-layout-constrained\" style=\"border-style:none;border-width:0px;border-radius:30px;padding-top:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30);padding-left:var(--wp--preset--spacing--30);box-shadow:var(--wp--preset--shadow--natural);background-image:url(&apos;https:\/\/getasecondopinion.ai\/blog\/wp-content\/uploads\/2025\/09\/cta-background-01.webp&apos;);background-position:100% 100%;background-repeat:no-repeat;background-size:contain;background-attachment:scroll;\">\n<div class=\"wp-block-group has-global-padding is-layout-constrained wp-container-core-group-is-layout-153751c2 wp-block-group-is-layout-constrained\" style=\"padding-bottom:10px\">\n<h3 class=\"wp-block-heading has-text-align-center has-accent-1-color has-text-color has-link-color has-large-font-size wp-elements-b6fe6b9c1e90c3ca0e3d22a4a0e21d9e\">Better Treatment, Lower Cost &#8211; No Catch.<\/h3>\n\n\n\n<p>Find safer, more effective medications with fewer side effects &#8211; often for less money. It\u2019s fast, free, and personalized. <strong><a href=\"https:\/\/getasecondopinion.ai\/intro-summary\" target=\"_blank\" rel=\"noreferrer noopener\">Learn More \u2192<\/a><\/strong><\/p>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Sources (4)&nbsp;<\/strong><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Epstein\u2011Barr virus and cancer statistics\u00a0 &#8211;\u00a0 International Agency for Research on Cancer (IARC): <a href=\"https:\/\/www.iarc.who.int\/news-events\/new-study-reveals-that-epstein-barr-virus-infection-may-increase-risk-of-a-broad-spectrum-of-cancer-types\/\">https:\/\/www.iarc.who.int\/featured-news\/ebv-and-cancer<\/a>\u00a0<\/li>\n\n\n\n<li>EBV infection and multiple sclerosis risk\u00a0 &#8211;\u00a0 Science, 2022: <a href=\"https:\/\/www.science.org\/doi\/10.1126\/science.abj8222\">https:\/\/www.science.org\/doi\/10.1126\/science.abj8222<\/a>\u00a0\u00a0<\/li>\n\n\n\n<li>EBV and autoimmune diseases\u00a0 &#8211;\u00a0 Nature Reviews Immunology: <a href=\"https:\/\/www.nature.com\/articles\/s41584-024-01167-9\">https:\/\/www.nature.com\/articles\/s41584-024-01167-9<\/a>\u00a0\u00a0\u00a0<\/li>\n\n\n\n<li>EBV risk in transplant patients\u00a0 &#8211;\u00a0 American Society of Transplantation: <a href=\"https:\/\/www.amjtransplant.org\/article\/S1600-6135(22)26266-2\/fulltext\">https:\/\/www.amjtransplant.org\/article\/S1600-6135(22)26266-2\/fulltext<\/a>\u00a0\u00a0<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Epstein\u2011Barr virus (EBV) is one of the most common viruses on Earth, yet it rarely makes headlines. Most people catch it at some point in their lives, often without knowing it. But beneath its quiet reputation, EBV is linked to a surprising number of serious health problems &#8211; from infectious mononucleosis (\u201cmono\u201d) to certain cancers [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":928,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[655,652,653,659,654,650,657,658,651,656],"class_list":["post-927","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-ebv-antibodies","tag-ebv-cancer-link","tag-ebv-immune-therapy","tag-ebv-infection-blocking","tag-ebv-prevention","tag-ebv-treatment","tag-ebv-vaccine-research","tag-epstein-barr-virus","tag-humanized-mice","tag-monoclonal-antibodies"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>A New Path to Stopping Epstein\u2011Barr Virus: How Scientists 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