title: Encapsulation of mono- and oligo-nucleotides into aqueous-core nanocapsules in presence of various water-soluble polymers.
abstract: In a previous study, we have shown that cidofovir (CDV) and azidothymidine-triphosphate (AZT-TP) were poorly encapsulated in poly(iso-butylcyanoacrylate) (PIBCA) aqueous-core nanocapsules. This was attributed to the rapid leakage of these small and hydrophilic molecules through the thin polymer wall of the nanocapsules. In the present study, we have selected various water-soluble polymers as increasing Mw adjuvants and investigated their influence on the entrapment of mononucleotides (CDV, AZT-TP) as well as of oligonucleotides (ODN) into these PIBCA aqueous-core nanocapsules. We show here that the presence of cationic polymers (i.e. poly(ethyleneimine) (PEI) or chitosan) in the nanocapsule aqueous compartment allowed successful encapsulation of AZT-TP and ODN.
authors.affiliation: Universite Paris Sud, UMR CNRS 8612, 5 rue J.B. Clément, 92296 Châtenay-Malabry, France.
authors.forename: H
authors.initials: H
authors.lastname: Hillaireau
authors.forename: T
authors.initials: T
authors.lastname: Le Doan
authors.forename: H
authors.initials: H
authors.lastname: Chacun
authors.forename: J
authors.initials: J
authors.lastname: Janin
authors.forename: P
authors.initials: P
authors.lastname: Couvreur
mesh_terms: D002412:Cations; D048271:Chitosan / Q000627:therapeutic use; D000077404:Cidofovir; D003487:Cyanoacrylates / Q000627:therapeutic use; D003596:Cytosine / Q000008:administration & dosage / Q000031:analogs & derivatives; D054306:Dideoxynucleotides; D004337:Drug Carriers / Q000737:chemistry*; D004659:Enbucrilate; D008422:Materials Testing; D053769:Nanocapsules / Q000737:chemistry* / Q000627:therapeutic use; D009711:Nucleotides / Q000008:administration & dosage*; D009841:Oligonucleotides / Q000008:administration & dosage; D063065:Organophosphonates / Q000008:administration & dosage; D010539:Permeability; D011094:Polyethyleneimine / Q000627:therapeutic use; D011108:Polymers / Q000627:therapeutic use*; D012995:Solubility; D013942:Thymine Nucleotides / Q000008:administration & dosage; D014867:Water; D015215:Zidovudine / Q000008:administration & dosage / Q000031:analogs & derivatives
chemical_list: D002412:Cations; D003487:Cyanoacrylates; D054306:Dideoxynucleotides; D004337:Drug Carriers; D053769:Nanocapsules; D009711:Nucleotides; D009841:Oligonucleotides; D063065:Organophosphonates; D011108:Polymers; D013942:Thymine Nucleotides; D014867:Water; D015215:Zidovudine; C052873:zidovudine triphosphate; D003596:Cytosine; D011094:Polyethyleneimine; D048271:Chitosan; D004659:Enbucrilate; D000077404:Cidofovir