pH-Sensitive Amino Lipid-Driven Pore Formation Enables Endosomal Escape of Lipid Nanoparticles.

pH-sensitive amino lipid-driven fusion via stalk-pore mechanism enhances endosomal escape of lipid nanoparticles, improving nucleic acid delivery efficiency.

• Why it matters: Understanding the molecular basis of endosomal escape is crucial to overcoming current limitations in LNP-based gene therapy and vaccine delivery systems.
• What they did: Molecular simulations of LNPs interacting with endosomal membranes revealed multiple fusion pathways, especially the stalk-pore mechanism, highlighting key factors like ionizable lipid transfer and membrane tension.
• The result: These insights enable the rational design of more effective LNPs by optimizing lipid composition, pH sensitivity, and other molecular determinants to boost intracellular delivery and therapeutic success.