title: Inhibition of regulated cell death by cell-penetrating peptides.
abstract: Development of the means to efficiently and continuously renew missing and non-functional proteins in diseased cells remains a major goal in modern molecular medicine. While gene therapy has the potential to achieve this, substantial obstacles must be overcome before clinical application can be considered. A promising alternative approach is the direct delivery of non-permeant active biomolecules, such as oligonucleotides, peptides and proteins, to the affected cells with the purpose of ameliorating an advanced disease process. In addition to receptor-mediated endocytosis, cell-penetrating peptides are widely used as vectors for rapid translocation of conjugated molecules across cell membranes into intracellular compartments and the delivery of these therapeutic molecules is generally referred to as novel prospective protein therapy. As a broad coverage of the enormous amount of published data in this field is unrewarding, this review will provide a brief, focused overview of the technology and a summary of recent studies of the most commonly used protein transduction domains and their potential as therapeutic agents for the treatment of cellular damage and the prevention of regulated cell death.
authors.affiliation: Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105, Kiel, Germany. krautwald@nephro.uni-kiel.de.
authors.forename: Stefan
authors.initials: S
authors.lastname: Krautwald
authors.affiliation: Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105, Kiel, Germany.
authors.forename: Christin
authors.initials: C
authors.lastname: Dewitz
authors.affiliation: Clinic for Applied Cellular Medicine, University Hospital Schleswig-Holstein, 24105, Kiel, Germany.
authors.forename: Fred
authors.initials: F
authors.lastname: Fändrich
authors.affiliation: Department of Nephrology and Hypertension, University Hospital Schleswig-Holstein, 24105, Kiel, Germany.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Kunzendorf
mesh_terms: D000818:Animals; D016923:Cell Death / Q000502:physiology*; D002462:Cell Membrane / Q000502:physiology*; D002463:Cell Membrane Permeability; D057846:Cell-Penetrating Peptides / Q000378:metabolism*; D016503:Drug Delivery Systems / Q000379:methods*; D004705:Endocytosis; D018014:Gene Transfer Techniques; D005822:Genetic Vectors / Q000235:genetics; D006801:Humans; D051379:Mice; D009841:Oligonucleotides / Q000008:administration & dosage; D021381:Protein Transport / Q000502:physiology; D051381:Rats
chemical_list: D057846:Cell-Penetrating Peptides; D009841:Oligonucleotides
keywords: Cell-penetrating peptide (CPP); Protein therapy; Protein transduction domain (PTD); Regulated cell death (RCD)