title: Is there anybody in there? On the mechanisms of wall crossing of cell penetrating peptides.
abstract: Cell penetrating peptides (CPPs) belong to the large family of membrane active peptides that comprises antimicrobial and viral fusion peptides with whom they share many properties. CPPs have been increasingly used to transport a wide range of molecules and nanoparticles inside cells. Despite their recognized potential transporting properties, their mode of action is far from being understood and has been a matter of debate. Penetratin, a widely used CPP is one of the first discovered CPPs, yet its mechanism of action remains obscure. Herein an overview on studies regarding cellular and liposomal uptake and the interaction with lipid model systems of CPPs and more particularly penetratin is provided. Special emphasis will be given to biophysical approaches to investigate penetratin/lipid interaction and subsequent lipid reorganization using lipid model systems.
authors.affiliation: CBMN-UMR 5248 CNRS, Université de Bordeaux, IPB, Pessac, France.
authors.forename: Isabel D
authors.initials: ID
authors.lastname: Alves
authors.forename: Astrid
authors.initials: A
authors.lastname: Walrant
authors.forename: Chérine
authors.initials: C
authors.lastname: Bechara
authors.forename: Sandrine
authors.initials: S
authors.lastname: Sagan
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001692:Biological Transport; D002352:Carrier Proteins / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D002460:Cell Line; D002462:Cell Membrane / Q000737:chemistry / Q000187:drug effects*; D057846:Cell-Penetrating Peptides / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D004331:Drosophila melanogaster / Q000737:chemistry / Q000502:physiology; D008051:Lipid Bilayers / Q000737:chemistry*; D008081:Liposomes / Q000737:chemistry*; D008969:Molecular Sequence Data; D017433:Protein Structure, Secondary; D017434:Protein Structure, Tertiary
chemical_list: D002352:Carrier Proteins; D057846:Cell-Penetrating Peptides; D008051:Lipid Bilayers; D008081:Liposomes; C414409:penetratin