A novel chimeric cell-penetrating peptide with membrane-disruptive properties for efficient endosomal escape (Articolo in rivista)

Type
Label
  • A novel chimeric cell-penetrating peptide with membrane-disruptive properties for efficient endosomal escape (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.jconrel.2012.09.019 (literal)
Alternative label
  • Salomone, F., Cardarelli, F., Di Luca, M., Boccardi, C., Nifosi', R., Bardi, G., Di Bari, L., Serresi, M., Beltram, F. (2012)
    A novel chimeric cell-penetrating peptide with membrane-disruptive properties for efficient endosomal escape
    in Journal of controlled release
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Salomone, F., Cardarelli, F., Di Luca, M., Boccardi, C., Nifosi', R., Bardi, G., Di Bari, L., Serresi, M., Beltram, F. (literal)
Pagina inizio
  • 293 (literal)
Pagina fine
  • 303 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://www.sciencedirect.com/science/article/pii/S0168365912007079 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 163 (literal)
Rivista
Note
  • Scopus (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • NEST, Scuola Normale Superiore and Istituto Nanoscienze-CNR, Piazza San Silvestro 12-56127 Pisa, Italy Center for Nanotechnology Innovation at NEST, Istituto Italiano di Tecnologia, Piazza San Silvestro 12-56127 Pisa, Italy Dipartimento di Chimica e Chimica Industriale, Università di Pisa, via Risorgimento 35, I-56126 Pisa, Italy (literal)
Titolo
  • A novel chimeric cell-penetrating peptide with membrane-disruptive properties for efficient endosomal escape (literal)
Abstract
  • Efficient endocytosis into a wide range of target cells and low toxicity make the arginine-rich Tat peptide (Tat11: YGRKKRRQRRR, residues 47-57 of HIV-1 Tat protein) an excellent transporter for delivery purposes. Unfortunately, molecules taken up by endocytosis undergo endosomal entrapment and possible metabolic degradation. Escape from the endosome is therefore actively researched. In this context, antimicrobial peptides (AMPs) provide viable templates for the design of new membrane-disruptive motifs. In particular the Cecropin-A and Melittin hybrids (CMs) are among the smallest and most effective peptides with membrane-perturbing abilities. Here we present a novel chimeric peptide in which the Tat11 motif is fused to the CM18 hybrid (KWKLFKKIGAVLKVLTTG, residues 1-7 of Cecropin-A and 2-12 of Melittin). When administered to cells, CM18-Tat11 combines the two desired functionalities: efficient uptake and destabilization of endocytotic-vesicle membranes. We show that this chimeric peptide effectively increases cargo-molecule cytoplasm availability and allows the subsequent intracellular localization of diverse membrane-impermeable molecules (i.e. Tat11-EGFP fusion protein, calcein, dextrans, and plasmidic DNA) with no detectable cytotoxicity. The present results open the way to the rational engineering of \"modular\" cell-penetrating peptides (CPPs) that combine (i) efficient translocation from the extracellular milieu into vesicles and (ii) efficient release of molecules from vesicles into the cytoplasm. (literal)
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