Keywords: Antibody-Targeted Delivery; Cytosolic Delivery; Drug Delivery; Endosomal Escape; Peptides EN Antibody-Targeted Delivery Cytosolic Delivery Drug Delivery Endosomal Escape Peptides 1 1 1 09/14/23 20230918 NES 230918 B A histidine-rich b endosomal escape peptide, as described by Juanjuan Du et al. in their Research Article (e202304692), is capable of mediating efficient endosome-to-cytosol transport of peptide/protein cargo, depicted in the cover picture as butterflies escaping from bubbles trapping them. Once combined with antibody-mediated endocytosis, this strategy enables cell-specific cytosolic delivery of functional proteins. Antibody-Targeted Delivery, Cytosolic Delivery, Drug Delivery, Endosomal Escape, Peptides. [Extracted from the article]