Cited by 653RNA Interference and Gene DeliveryNanoparticle-Based Drug DeliveryDendrimers and Hyperbranched Polymers

The DOI matches its Crossref record; 53 of the 54 references it cites were found in a registry or an index.

Membrane-destabilizing ionizable phospholipids for organ-selective mRNA delivery and CRISPR–Cas gene editing

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Abstract

Endosomal escape remains a fundamental barrier hindering the advancement of nucleic acid therapeutics. Taking inspiration from natural phospholipids that comprise biological membranes, we report the combinatorial synthesis of multi-tailed ionizable phospholipids (iPhos) capable of delivering messenger RNA or mRNA/single-guide RNA for gene editing in vivo. Optimized iPhos lipids are composed of one pH-switchable zwitterion and three hydrophobic tails, which adopt a cone shape in endosomal acidic environments to facilitate membrane hexagonal transformation and subsequent cargo release from endosomes. Structure-activity relationships reveal that iPhos chemical structure can control in vivo efficacy and organ selectivity. iPhos lipids synergistically function with various helper lipids to formulate multi-component lipid nanoparticles (called iPLNPs) for selective organ targeting. Zwitterionic, ionizable cationic and permanently cationic helper lipids enable tissue-selective mRNA delivery and CRISPR-Cas9 gene editing in spleen, liver and lungs (respectively) following intravenous administration. This rational design of functional phospholipids demonstrates substantial value for gene editing research and therapeutic applications.

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Metadata

Authors
Liu, S., Cheng, Q., Wei, T., Yu, X., Johnson, L. T., Farbiak, L., & Siegwart, D. J.
Affiliations
Harold C. Simmons Comprehensive Cancer Center (US)
Corresponding author
Siegwart, Daniel J.
Venue
Nature Materials
Published
2021-02-04
Volume
20
Issue
5
Pages
701-710
ISSN
  • 1476-1122 (ISSN-L)
  • 1476-4660
OpenAlex
W3127944141
Cited by
653
References
54
Citations by year
2026: 107 · 2025: 154 · 2024: 139 · 2023: 122 · 2022: 90 · 2021: 40
FWCI
30.66
Type
journal article
Language
en
Open access
Locations
  • Nature Materials (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Cancer Prevention and Research Institute of Texas (RP160157)
  • U.S. Department of Health & Human Services | National Institutes of Health (R01 EB025192-01A1)
  • American Cancer Society (RSG-17-012-01)
  • Welch Foundation (I-1855)
  • Cystic Fibrosis Foundation (SIEGWA18XX0)
  • U.S. Department of Health & Human Services | NIH | National Cancer Institute (5P30CA142543)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Interference and Gene Delivery
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Physical Sciences › Materials Science › Polymers and Plastics › Dendrimers and Hyperbranched Polymers
Keywords
endosomal escape, mRNA delivery, CRISPR/Cas9 genome editing, lipid nanoparticles, zwitterionic lipids, membrane perturbation, structure-activity relationship, helper lipids, nucleic acid therapeutics
MeSH terms
Gene Editing, Animals, Cell Line, Cell Membrane, Female, Organ Specificity, Phospholipids, RNA, Messenger, Drug Delivery Systems, Mice, Administration, Intravenous, CRISPR-Cas Systems

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