Special Issue "Cell-penetrating Peptides 2012"
A special issue of Pharmaceuticals (ISSN 1424-8247).
Deadline for manuscript submissions: closed (30 September 2012)
Prof. Dr. Vladimir P. Torchilin (Website)
University Distinguished Professor, Director, Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, 140 The Fenway, room 214, 360 Huntington Avenue Boston, MA 02115, USA
Fax: +617 373 7509
Interests: drug carriers; drug delivery sytems; drug targeting; liposomes; micelles; experimental cancer immunology; imaging agents
Intracellular delivery of therapeutic molecules is one of the key problems in drug delivery in general. Many pharmaceutical agents should be delivered intracellularly to exert their therapeutic action inside cytoplasm or onto individual organelles, such as nuclei, lysosomes, or mitochondria. However, cell membranes prevent proteins, peptides, and nanoparticulate drug carriers from entering cells. So far, multiple and only partially successful attempts have been made to bring various drugs and drug-loaded pharmaceutical carriers directly into the cell cytoplasm bypassing the endocytic pathway, to protect drugs and DNA from the lysosomal degradation.
A promising approach that seems to be the solution of overcoming the cellular barrier for intracellular drug delivery has emerged over the last decade. In this approach, certain proteins or peptides can be tethered to the hydrophilic drug of interest and together the construct possesses the ability to translocate across the plasma membrane and deliver the payload intracellularly; the process termed as “protein transduction”. Such proteins or peptides contain domains of less than 20 amino acids, Protein Transduction Domains (PTDs) or Cell Penetrating Peptides (CPPs) that are highly rich in basic residues. These peptides have been used for intracellular delivery of various cargoes with molecular weights significantly greater than their own. This special issue will be dealing with pharmaceutical application of cell-penetrating peptides – a challenging and promising area in pharmaceutical research.
Prof. Dr. Vladimir P. Torchilin
- intracellular delivery
- cell-penetrating peptides
- protein transduction domains
- drug targeting
- pharmaceutical nanocarriers