title: A short circulating peptide nanofiber as a carrier for tumoral delivery.
abstract: The cellular interactions and in vivo distribution of the nanomaterials are known to be strongly influenced by their physiochemical properties. Here, we investigated and compared the biocompatibility, pharmacokinetics, and biodistribution of previously reported peptide-based nanofiber (NFP), with commercially available nanomaterials. The NFP was a 2-dimensional (2D) structure with an extremely narrow width (4 nm) and a controllable length (50 to 400 nm). NFP was found to be non-toxic, hemocompatible, and with a minimum uptake by macrophages. In vivo studies further demonstrated that NFP could be delivered to the tumor site more effectively, and within a very shorter period of time, than spherical nanoparticles. Importantly, the undelivered NFP was rapidly eliminated by renal clearance and, thus, avoiding its accumulation in the spleen or liver. Overall, our data suggested a new paradigm in drug delivery via using a short circulating NFP, rather than a long circulating 3D nanoparticle, as a delivery cargo.
  
  
  BACKGROUND
  In this study, the role of small peptide-based nanocarriers is investigated for tumor-specific delivery, reporting excellent targeting properties and a favorable toxicity profile.
authors.affiliation: Department of Pharmaceutical Sciences, North Dakota State University, Fargo, ND, USA.
authors.forename: Anil
authors.initials: A
authors.lastname: Wagh
authors.forename: Jagdish
authors.initials: J
authors.lastname: Singh
authors.forename: Steven
authors.initials: S
authors.lastname: Qian
authors.forename: Benedict
authors.initials: B
authors.lastname: Law
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000008:administration & dosage* / Q000493:pharmacokinetics; D002460:Cell Line; D045744:Cell Line, Tumor; D006801:Humans; D051379:Mice; D016513:Mice, SCID; D057139:Nanofibers; D009369:Neoplasms / Q000188:drug therapy*; D010455:Peptides / Q000008:administration & dosage*; D014018:Tissue Distribution
chemical_list: D000970:Antineoplastic Agents; D010455:Peptides