Logo image
Engineered amphiphilic peptides enable delivery of proteins and CRISPR-associated nucleases to airway epithelia
Journal article   Open access   Peer reviewed

Engineered amphiphilic peptides enable delivery of proteins and CRISPR-associated nucleases to airway epithelia

Sateesh Krishnamurthy, Christine Wohlford-Lenane, Suhas Kandimalla, Gilles Sartre, David K Meyerholz, Vanessa Théberge, Stéphanie Hallée, Anne-Marie Duperré, Thomas Del'Guidice, Jean-Pascal Lepetit-Stoffaes, …
Nature communications, Vol.10(1), 4906
10/28/2019
DOI: 10.1038/s41467-019-12922-y
PMCID: PMC6817825
PMID: 31659165
url
https://doi.org/10.1038/s41467-019-12922-yView
Published (Version of record) Open Access

Abstract

The delivery of biologic cargoes to airway epithelial cells is challenging due to the formidable barriers imposed by its specialized and differentiated cells. Among cargoes, recombinant proteins offer therapeutic promise but the lack of effective delivery methods limits their development. Here, we achieve protein and SpCas9 or AsCas12a ribonucleoprotein (RNP) delivery to cultured human well-differentiated airway epithelial cells and mouse lungs with engineered amphiphilic peptides. These shuttle peptides, non-covalently combined with GFP protein or CRISPR-associated nuclease (Cas) RNP, allow rapid entry into cultured human ciliated and non-ciliated epithelial cells and mouse airway epithelia. Instillation of shuttle peptides combined with SpCas9 or AsCas12a RNP achieves editing of loxP sites in airway epithelia of ROSA mice. We observe no evidence of short-term toxicity with a widespread distribution restricted to the respiratory tract. This peptide-based technology advances potential therapeutic avenues for protein and Cas RNP delivery to refractory airway epithelial cells.
Animals Bacterial Proteins - genetics Bacterial Proteins - metabolism Bronchi - cytology Bronchi - metabolism Drug Delivery Systems - methods Endonucleases - genetics Endonucleases - metabolism Epithelial Cells - metabolism Genetic Therapy Humans Lung - metabolism Lung Diseases - genetics Lung Diseases - metabolism Lung Diseases - therapy Mice Peptides - administration & dosage Peptides - genetics Peptides - metabolism Ribonucleoproteins - genetics Ribonucleoproteins - metabolism Swine

Details

Metrics

Logo image