“…The interactions mediate the cellular internalization of nanoparticles along with siRNA and their release in the cytoplasm ( Jayaraman et al, 2012 ; Lee et al, 2022 ). DLin-MC3-DMA [(6Z,9Z,28Z,31Z)-heptatriacont-6,9,28,31-tetraene-19-yl 4-(dimethylamino) butanoate], ALC-0315 {[(4-hydroxybutyl) azanediyl]di(hexane-6,1-diyl) bis(2-hexyldecanoate)}, and SM-102 {1-Octylnonyl 8-[(2-hydroxyethyl) (6-oxo-6 (undecyloxy)hexyl)amino]-octanoate} are clinically approved lipids, among which ALC-0315 and SM-102 have been applied for mRNA delivery, and DLin-MC3-DMA (MC3) has been used for siRNA delivery for treating transthyretin amyloidosis ( Suzuki and Ishihara, 2021 ; Urits et al, 2021 ; Saadati et al, 2022 ). The helper lipids are generally phospholipids such as DOPE (dioleoylphosphatidylethanolamine) and DSPC (distearoylphosphatidylcholine) and are used for the stability of LNPs and for aiding the endosomal release ( Hou et al, 2021 ).…”