title: Biodegradable polymer-mediated sh/siRNA delivery for cancer studies.
abstract: Discovery of RNA interference (RNAi)-mediated specific gene silencing has raised hope for cancer therapy. Unfortunately, the execution of RNAi by delivering small-interfering RNA (siRNA) or small hairpin RNA (shRNA) remains a prime challenge. A methodical evaluation of cationic polymers in RNAi-based cancer studies may offer a promising solution to this problem. In this chapter, we report the methodologies for comprehensive characterization of a biodegradable polymeric system for sh/siRNA delivery in cancer studies. The chapter will describe synthesis, characterization, and optimization of biodegradable poly (beta-amino ester) for sh/siRNA delivery. The protocols are provided for shRNA and siRNA complex preparation, stability and morphology study. Also, detailed methods are provided for the intracellular tracking and transfection of sh/siRNA using polymeric carrier. In addition, step-wise information is provided for the in vitro silencing of oncoprotein to study important cancer properties, including proliferation, malignancy, and metastasis of cancer cells.
authors.affiliation: Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, South Korea.
authors.forename: Dhananjay J
authors.initials: DJ
authors.lastname: Jere
authors.forename: Chong-Su
authors.initials: CS
authors.lastname: Cho
mesh_terms: D002465:Cell Movement; D004952:Esters / Q000008:administration & dosage*; D009362:Neoplasm Metastasis; D009369:Neoplasms / Q000235:genetics*; D034622:RNA Interference; D034741:RNA, Small Interfering / Q000008:administration & dosage* / Q000378:metabolism; D022661:RNA, Untranslated / Q000008:administration & dosage* / Q000378:metabolism; D014162:Transfection
chemical_list: D004952:Esters; D034741:RNA, Small Interfering; D022661:RNA, Untranslated