Ionizable lipid 4 is an ionizable cationic lipid (pKa = 6.1) and a hydrogen peroxide-induced rearrangement product of the cationic lipid CA-lipid 5.1 Charge-altering lipid nanoparticles (CALNPs) containing CA-lipid 5 and encapsulating siRNA against EGFP undergo hydrogen peroxide-induced removal of the phenylboronic acid groups from CA-lipid 5 in MCF-7 cells in vitro, generating ionizable lipid 4-containing LNPs with reduced positive charges at physiological pH, facilitating intracellular siRNA release and gene silencing. LNPs containing ionizable lipid 4 and encapsulating siRNA against PLK1 reduce tumor volume in an MCF-7 mouse xenograft model less effectively than CALNPs containing CA-lipid 5.
Cat.No
DC66220
Name
Ionizable Lipid 4
Chemical Properties
CAS
1799316-81-6
Formula
C48H85NO7
MW
788.2
Storage
2 years -20°C Powder, 2 weeks 4°C in DMSO, 6 months -80°C in DMSO
References
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