Article Dans Une Revue Journal of Chemical Theory and Computation Année : 2025

Martini 3 building blocks for Lipid Nanoparticle design

Lisbeth Ravnkilde Kjølbye
Mariana Valério
Markéta Paloncýová
Roberto Pestana-Nobles
Fabian Grünewald
Bart Bruininks
Rocío Araya-Osorio
Martin Šrejber
Raul Mera-Adasme
Siewert Marrink
Michal Otyepka
Sangwook Wu
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Résumé

Lipid nanoparticles (LNPs) represent a promising platform for advanced drug and gene delivery, yet optimizing these particles for specific cargos and cell targets poses a complex, multifaceted challenge. Furthermore, there is a pressing need for a more comprehensive understanding of the underlying technology. Experimental studies are costly and often provide low-resolution information. Molecular dynamics (MD) simulations allow us to study these particles at a higher resolution, enhancing our understanding. However, studying these systems at atomic resolutions is both challenging and computationally expensive, as well as time-consuming. Coarse-grained (CG) models, such as Martini 3, are positioned as promising tools for studying LNPs. To enable CG-MD studies of LNPs, accurate and validated models of their components are needed. Here, we present a substantial extension of the Martini 3 library of lipids, covering the most important LNP components, including over a hundred of ionizable lipid (IL) models, along with natural occurring sterol models and PEGylated lipid models. We furthermore present initial protocols for screening fusion efficacy across different lipid formulations and for constructing whole LNPs at CG resolution, enabling future studies of these nanoparticles.

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Dates et versions

hal-04745118 , version 1 (20-10-2024)

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Lisbeth Ravnkilde Kjølbye, Mariana Valério, Markéta Paloncýová, Luís Borges-Araújo, Roberto Pestana-Nobles, et al.. Martini 3 building blocks for Lipid Nanoparticle design. Journal of Chemical Theory and Computation, 2025, ⟨10.26434/chemrxiv-2024-bf4n8⟩. ⟨hal-04745118⟩
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