Georgia Tech and Emory University Researchers Develop Targeted GI Delivery for mRNA Therapies and Vaccines
Researchers at Georgia Tech and Emory University have discovered that delivering lipid nanoparticle (LNP) medicines directly to various areas of the gastrointestinal (GI) tract can precisely alter where these therapies travel in the body. This innovation opens new possibilities for mRNA therapies and vaccines by enabling more precise targeting of specific organs while limiting unwanted side effects in others. Traditionally, LNPs are delivered subcutaneously or intravenously, which can lead to drug interactions with organs like the liver, lungs, and spleen, causing side effects and limiting dosage. By using mouse models, the researchers mapped how nanoparticles traveled after microneedle injections into different parts of the GI tract, including the cheeks, stomach, and rectum. They found that this method allowed them to target organs such as the pancreas and lymph nodes more effectively, while reducing uptake in the liver, lungs, and spleen. For example, delivering glucagon-like peptide-1 (GLP-1) mRNA dose...