{"id":28599,"date":"2026-10-19T13:26:34","date_gmt":"2026-10-19T11:26:34","guid":{"rendered":"https:\/\/ibsal.es\/?p=28599"},"modified":"2026-10-19T13:27:00","modified_gmt":"2026-10-19T11:27:00","slug":"a-research-project-by-usal-ibsal-and-cic-is-developing-a-nanomedicine-strategy-to-combat-her2-positive-breast-cancer","status":"publish","type":"post","link":"https:\/\/ibsal.es\/en\/a-research-project-by-usal-ibsal-and-cic-is-developing-a-nanomedicine-strategy-to-combat-her2-positive-breast-cancer\/","title":{"rendered":"A research project by USAL, IBSAL, and CIC is developing a nanomedicine strategy to combat HER2-positive breast cancer"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>The study, led by Eva Mart\u00edn del Valle (USAL-IBSAL) and Atanasio Pandiella (IBSAL and CIC: CSIC-USAL-FICUS), highlights the potential of chemical engineering and nanomedicine to develop new strategies to combat this disease<\/strong><\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\"><strong>The study, published in <em>*Materials Today Chemistry*<\/em>, presents a new experimental strategy with the potential to advance toward more targeted treatments for HER2-positive breast cancer<\/strong><\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">To mark <strong>World Breast Cancer Day<\/strong>, observed every <strong>October 19<\/strong>, a study published in <em>*Materials Today Chemistry*<\/em> presents a new experimental strategy with the potential to advance toward more targeted treatments for HER2-positive breast cancer.<\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">The study, led by <a href=\"https:\/\/ibsal.portalinvestigacion.com\/investigadores\/885\">Eva Mart\u00edn del Valle<\/a>, professor of chemical engineering at USAL and researcher at the Salamanca Biomedical Research Institute (IBSAL), and <a href=\"https:\/\/ibsal.portalinvestigacion.com\/investigadores\/650\">Atanasio Pandiella<\/a>, a researcher at IBSAL and the Cancer Research Center (CSIC-USAL-FICUS), highlights the potential of chemical engineering and nanomedicine to develop new strategies to combat this disease. <strong>This breakthrough combines chemical engineering and cancer biology using a platform of polydopamine nanoparticles, a material inspired by the adhesive properties of mussels<\/strong>.<\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-3-1-1024x576.jpg\" alt=\"\" class=\"wp-image-28602\" srcset=\"https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-3-1-1024x576.jpg 1024w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-3-1-300x169.jpg 300w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-3-1-768x432.jpg 768w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-3-1-1536x864.jpg 1536w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-3-1-2048x1152.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><sub>From left to right: Celia Nieto Jim\u00e9nez, assistant professor in the Department of Chemical Engineering; Eva Mart\u00edn del Valle, full professor of Chemical Engineering at USAL; Elena D\u00edaz Rodr\u00edguez, tenured professor in the Department of Biochemistry and researcher at the Cancer Research Center; and Milena Vega Moreno, full professor of Chemical Engineering. All of them are researchers at IBSAL, in the CANC-29 group\u2014Nanotechnology-Based Cancer Treatments\u2014and the CANC-24 group\u2014Molecular and Cellular Oncology Laboratory. <br\/><\/sub><\/figcaption><\/figure>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h4 class=\"wp-block-heading\"><strong>New Strategies for Treating HER2-Positive Breast Cancer<\/strong><\/h4>\n\n<p class=\"wp-block-paragraph\">The main innovation lies in integrating three functions into a single nanosystem: facilitating the recognition of tumor cells by trastuzumab, transporting the experimental molecule MZ1 to promote the elimination of the BRD4 protein, and harnessing the antitumor activity of the nanomaterial itself. Thus, <strong>the nanoparticles act as a transport vehicle and also contribute to the therapeutic effect<\/strong>. <\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">MZ1 belongs to a class of molecules called PROTACs, which <strong>use the cells\u2019 natural machinery to eliminate specific proteins<\/strong>. This approach offers potential for targeting proteins involved in cancer progression, although its development requires overcoming challenges related to administration and selectivity. The proposed platform addresses these obstacles and facilitates the release of MZ1 under the acidic conditions of certain cellular compartments.  <\/p>\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"967\" src=\"https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/image-10-edited-1-1024x967.png\" alt=\"\" class=\"wp-image-28614\" srcset=\"https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/image-10-edited-1-1024x967.png 1024w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/image-10-edited-1-300x283.png 300w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/image-10-edited-1-768x725.png 768w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/image-10-edited-1-1536x1450.png 1536w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/image-10-edited-1.png 1541w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><sub>Schematic illustration of the antitumor mechanism of MZ1-Tz@PDA nanoparticles in HER2+ breast cancer cells, showing the degradation of BRD4 and the reduction in cell proliferation and viability.<\/sub><\/figcaption><\/figure>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">The trials demonstrated preferential uptake by cells with elevated HER2 levels, activity in three-dimensional tumor models, and a slowing of tumor growth in mice, with favorable tolerability under the conditions evaluated.<\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">Its potential lies in facilitating the targeted administration of protein degraders and combining complementary antitumor mechanisms. Although <strong>the results are preclinical and require further research before their application in patients can be evaluated<\/strong>, they provide a promising foundation for the continued development of this strategy against HER2-positive breast cancer. <\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<h4 class=\"wp-block-heading\"><strong>A promising development<\/strong><\/h4>\n\n<p class=\"wp-block-paragraph\">Eva Mart\u00edn del Valle, a researcher at USAL and IBSAL, explained: \u201cWe have designed a nanoparticle that carries a molecule capable of activating the cell\u2019s recycling system to eliminate a protein that helps the tumor grow. <strong>What makes this special is that the nanoparticle itself also helps fight tumor cells<\/strong>. In mice, we\u2019ve managed <strong>to<\/strong> slow tumor growth. It\u2019s a first step, but it encourages us to keep working so that this research can one day lead to new treatment options for patients.\u201d  <\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-2-1024x576.jpg\" alt=\"\" class=\"wp-image-28610\" srcset=\"https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-2-1024x576.jpg 1024w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-2-300x169.jpg 300w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-2-767x431.jpg 767w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-2-2048x1152.jpg 2048w, https:\/\/ibsal.es\/wp-content\/uploads\/2026\/10\/Ciencia-Cancer-de-Mama_Eva-Martin-del-Valle-2-1536x864.jpg 1536w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><sub>Eva Mart\u00edn del Valle, a professor at USAL and researcher at IBSAL, working in the lab.<br\/><\/sub><\/figcaption><\/figure>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\">\u201cBehind every breakthrough lies a question: How can we offer patients better options? Our work explores a new way to combat the tumor. There is still a long way to go, but the results show that it\u2019s worth continuing the research,\u201d said Eva Mart\u00edn del Valle.<\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\"><strong>In observance of October 19, World Breast Cancer Day<\/strong>, this breakthrough highlights the value of interdisciplinary research in generating new treatment options.<\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\"><strong>Study Reference<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Nieto, C., D\u00edaz-Rodr\u00edguez, E., Vega, M. A., Pandiella, A., &amp; Mart\u00edn del Valle, E. M*. (2026). Bioinspired nanoformulation for BRD4 protein degradation in aggressive HER2+ breast cancer. Materials Today Chemistry, 57, 104069.<br\/><a href=\"https:\/\/doi.org\/10.1016\/j.langlo.2026.104069\" data-type=\"link\" data-id=\"https:\/\/doi.org\/10.1016\/j.langlo.2026.104069\">DOI: 10.1016\/J.MTCHEM.2026.104069<\/a>.<\/p>\n\n<div style=\"height:25px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n<p class=\"wp-block-paragraph\"><strong>Contact<\/strong><\/p>\n\n<p class=\"wp-block-paragraph\">Eva Mart\u00edn del Valle. Professor of Chemical Engineering at USAL and researcher at the Salamanca Institute for Biomedical Research (IBSAL) <\/p>\n\n<p class=\"wp-block-paragraph\"><a href=\"mailto:emvalle@usal.es\">emvalle@usal.es<\/a><\/p>\n\n<p class=\"wp-block-paragraph\">923 294 500 Ext. 1511<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The study, led by Eva Mart\u00edn del Valle (USAL-IBSAL) and Atanasio Pandiella (IBSAL and CIC: CSIC-USAL-FICUS), highlights the potential of chemical engineering and nanomedicine to develop new strategies to combat [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":28600,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_price":"","_stock":"","_tribe_ticket_header":"","_tribe_default_ticket_provider":"","_tribe_ticket_capacity":"","_ticket_start_date":"","_ticket_end_date":"","_tribe_ticket_show_description":"","_tribe_ticket_show_not_going":false,"_tribe_ticket_use_global_stock":"","_tribe_ticket_global_stock_level":"","_global_stock_mode":"","_global_stock_cap":"","_tribe_rsvp_for_event":"","_tribe_ticket_going_count":"","_tribe_ticket_not_going_count":"","_tribe_tickets_list":"[]","_tribe_ticket_has_attendee_info_fields":false,"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[238,239],"tags":[242],"class_list":["post-28599","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-news-highlights","tag-cancer-en"],"acf":[],"yoast_head":"<!-- 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