The LUMI-6 lipid, autonomously designed via the LUMI-lab platform, is a brominated ionizable lipid optimized for mRNA delivery. Formulated at a molar ratio of 35:28:34.5:2 (LUMI-6:DOTAP:cholesterol:C14-PEG2000), LNPs exhibit uniform physicochemical properties, including a hydrodynamic diameter of ~80 nm, polydispersity index (PDI) <0.2, and robust mRNA encapsulation efficiency. In vitro, LUMI-6 LNPs demonstrated 1.8-fold higher transfection potency in human bronchial epithelial cells compared to its debrominated counterpart (LUMI-6D), with minimal cytotoxicity confirmed by CCK-8 assays. In vivo, pulmonary delivery of CRISPR-Cas9 mRNA via LUMI-6 LNPs achieved 20.3% gene editing efficiency in murine lung epithelial cells, surpassing SM-102 (Moderna’s clinical benchmark) and demonstrating preferential tropism for lung epithelium over endothelial cells—critical for inhaled therapies targeting cystic fibrosis and surfactant disorders. The brominated tail enhances endosomal escape through optimized protonation dynamics, though explicit pKa values remain unmeasured. Synthesized via high-throughput combinatorial chemistry and refined through AI-driven active learning, LUMI-6 combines scalable production with organ-selective delivery, positioning it as a transformative platform for pulmonary nucleic acid therapeutics.
Cat.No
DC60793
Name
LUMI6
Chemical Properties
CAS
Formula
C45H81O4BRN4
MW
822.07
Storage
2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO
References
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