A Breath of Fresh CRISPR

Genome editing materials can’t just breeze into cells. Or can they? Even cells so well defended as lung and airway cells may admit wisps of genome editing proteins such as CRISPR-associated nucleases. All that’s needed is an inspired delivery method. One possibility is the aerosolization of amphiphilic peptides. Amphiphilic peptides combine hydrophilic and lipophilic properties and facilitate the translocation of proteins across membranes. These peptides are being evaluated for various applications, including genome editing. In fact, scientists from the University of Iowa, in collaboration with scientists from Feldan Therapeutics, recently used engineered amphiphilic peptides to deliver genome editing nucleases and ribonucleoproteins to cultured human airway epithelial cells and mouse lungs.