title: Chitosan-coated PLGA nanoparticles for DNA/RNA delivery: effect of the formulation parameters on complexation and transfection of antisense oligonucleotides.
abstract: Cationically modified poly(D,L-lactide-co-glycolide) (PLGA) nanoparticles have recently been introduced as novel carriers for DNA/RNA delivery. The colloidal characteristics of the nanoparticles--particle size and surface charge--are considered the most significant determinants in the cellular uptake and trafficking of the nanoparticles. Therefore, our aim was to introduce chitosan-coated PLGA nanoparticles, whose size and charge are tunable to adapt for a specific task. The results showed that biodegradable nanoparticles as small as 130 nm and adjustable surface charge can be tailored controlling the process parameters. As a proof of concept, the overall potential of these particulate carriers to bind the antisense oligonucleotides, 2'-O-methyl-RNA, and improve their cellular uptake was demonstrated. The study proved the efficacy of chitosan-coated PLGA nanoparticles as a flexible and efficient delivery system for antisense oligonucleotides to lung cancer cells.
authors: Biopharmaceutics and Pharmaceutical Technology, Saarland University, Saarbrücken, Germany.
authors: Noha
authors: N
authors: Nafee
authors: Sebastian
authors: S
authors: Taetz
authors: Marc
authors: M
authors: Schneider
authors: Ulrich F
authors: UF
authors: Schaefer
authors: Claus-Michael
authors: CM
authors: Lehr
mesh_terms: D045744:Cell Line, Tumor; D048271:Chitosan / Q000737:chemistry*; D020099:Coated Materials, Biocompatible; D003460:Crystallization / Q000379:methods; D004247:DNA / Q000008:administration & dosage / Q000235:genetics / Q000493:pharmacokinetics; D004337:Drug Carriers / Q000737:chemistry*; D004339:Drug Compounding / Q000379:methods; D006801:Humans; D019344:Lactic Acid / Q000737:chemistry*; D008175:Lung Neoplasms / Q000235:genetics / Q000378:metabolism*; D008422:Materials Testing; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D011100:Polyglycolic Acid / Q000737:chemistry*; D000077182:Polylactic Acid-Polyglycolic Acid Copolymer; D011108:Polymers / Q000737:chemistry*; D016372:RNA, Antisense / Q000008:administration & dosage / Q000235:genetics / Q000493:pharmacokinetics*; D014162:Transfection / Q000379:methods*
chemical_list: D020099:Coated Materials, Biocompatible; D004337:Drug Carriers; D011108:Polymers; D016372:RNA, Antisense; D000077182:Polylactic Acid-Polyglycolic Acid Copolymer; D011100:Polyglycolic Acid; D019344:Lactic Acid; D004247:DNA; D048271:Chitosan