title: Polymeric nanoparticles for drug delivery.
abstract: The use of biodegradable polymeric nanoparticles (NPs) for controlled drug delivery has shown significant therapeutic potential. Concurrently, targeted delivery technologies are becoming increasingly important as a scientific area of investigation. In cancer, targeted polymeric NPs can be used to deliver chemotherapies to tumor cells with greater efficacy and reduced cytotoxicity on peripheral healthy tissues. In this chapter, we describe the methods of (1) preparation and characterization of drug-encapsulated polymeric NPs formulated with biocompatible and biodegradable poly(D,L-lactic-co-glycolic acid)-poly(ethylene glycol) (PLGA-b-PEG) copolymers; (2) surface functionalization of the polymeric NPs with the A10 2'-fluoropyrimidine ribonucleic acid (RNA) aptamers that recognize the prostate-specific membrane antigen (PSMA) on prostate cancer cells; and (3) evaluation of the binding properties of these targeted polymeric NPs to PSMA-expressing prostate cancer cells in vitro and in vivo. These methods may contribute to the development of other useful polymeric NPs to deliver a spectrum of chemotherapeutic, diagnostic, and imaging agents for various applications.
authors.affiliation: Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA.
authors.forename: Juliana M
authors.initials: JM
authors.lastname: Chan
authors.forename: Pedro M
authors.initials: PM
authors.lastname: Valencia
authors.forename: Liangfang
authors.initials: L
authors.lastname: Zhang
authors.forename: Robert
authors.initials: R
authors.lastname: Langer
authors.forename: Omid C
authors.initials: OC
authors.lastname: Farokhzad
mesh_terms: D000818:Animals; D045744:Cell Line, Tumor; D011232:Chemical Precipitation; D016503:Drug Delivery Systems / Q000379:methods*; D004655:Emulsions; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008819:Mice, Nude; D050997:Nanomedicine / Q000379:methods*; D053758:Nanoparticles / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000138:chemical synthesis / Q000737:chemistry*; D011098:Polyglactin 910 / Q000138:chemical synthesis / Q000737:chemistry*; D023041:Xenograft Model Antitumor Assays
chemical_list: D004655:Emulsions; C102418:poly(lactic-glycolic acid)-poly(ethyleneglycol) copolymer; D011098:Polyglactin 910; D011092:Polyethylene Glycols