{"id":222232,"date":"2025-09-20T20:09:50","date_gmt":"2025-09-21T01:09:50","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2025\/09\/ai-validated-brain-targeted-mrna-lipid-nanoparticles-with-neuronal-tropismclick-to-copy-article-linkarticle-link-copied"},"modified":"2025-09-20T20:09:50","modified_gmt":"2025-09-21T01:09:50","slug":"ai-validated-brain-targeted-mrna-lipid-nanoparticles-with-neuronal-tropismclick-to-copy-article-linkarticle-link-copied","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2025\/09\/ai-validated-brain-targeted-mrna-lipid-nanoparticles-with-neuronal-tropismclick-to-copy-article-linkarticle-link-copied","title":{"rendered":"AI-Validated Brain Targeted mRNA Lipid Nanoparticles with Neuronal TropismClick to copy article linkArticle link copied!"},"content":{"rendered":"<p><a class=\"blog-photo\" href=\"https:\/\/lifeboat.com\/blog.images\/ai-validated-brain-targeted-mrna-lipid-nanoparticles-with-neuronal-tropismclick-to-copy-article-linkarticle-link-copied2.jpg\"><\/a><\/p>\n<p>Targeting therapeutic nanoparticles to the brain poses a challenge due to the restrictive nature of the blood\u2013brain barrier (BBB). Here we report the development of mRNA-loaded lipid nanoparticles (LNPs) functionalized with BBB-interacting small molecules, thereby enhancing brain delivery and gene expression. Screening brain-targeted mRNA-LNPs in central nervous system (CNS) in vitro models and through intravenous administration in mice demonstrated that acetylcholine-conjugated LNPs achieved superior brain tropism and gene expression, outperforming LNP modifications with nicotine, glucose, memantine, cocaine, tryptophan, and other small molecules. An artificial intelligence (AI)-based model designed to predict the BBB permeability of small-molecule ligands showed strong alignment with our experimental results, providing in vivo validation of its predictive capacity. Cell-specific biodistribution analysis in Cre-reporter Ai9 mice showed that acetylcholine-functionalized LNPs preferentially transfected neurons and astrocytes following either intravenous or intracerebral administration. Mechanistic studies suggest that acetylcholine-LNP uptake is mediated by the functional engagement of acetylcholine receptors (AchRs) followed by endocytosis, which synergistically enhances intracellular mRNA delivery. Moreover, acetylcholine-LNPs successfully crossed a human BBB-on-a-chip model, enabling transgene expression in human iPSC-derived neurons. Their effective penetration and transfection in human brain organoids further support their potential activity in human-based systems. These findings establish a predictive and modular framework for engineering CNS-targeted LNPs, advancing precision gene delivery for brain disorders.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Targeting therapeutic nanoparticles to the brain poses a challenge due to the restrictive nature of the blood\u2013brain barrier (BBB). Here we report the development of mRNA-loaded lipid nanoparticles (LNPs) functionalized with BBB-interacting small molecules, thereby enhancing brain delivery and gene expression. Screening brain-targeted mRNA-LNPs in central nervous system (CNS) in vitro models and through intravenous [\u2026]<\/p>\n","protected":false},"author":636,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,4,6],"tags":[],"class_list":["post-222232","post","type-post","status-publish","format-standard","hentry","category-biotech-medical","category-nanotechnology","category-robotics-ai"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/222232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/636"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=222232"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/222232\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=222232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=222232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=222232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}