Zhu, Huajie; An, Jinxia; Pang, Chengcai; Chen, Shuai; Li, Wei; Liu, Jinbiao; Chen, Qixian; Gao, Hui published the artcile< A multifunctional polymeric gene delivery system for circumventing biological barriers>, Quality Control of 184239-35-8, the main research area is multifunctional polymer gene delivery.
Aiming to circumvent the pre-defined obstacles in the journey of gene transportation, we attempt to compile a number of functional components into a tandem tri-copolymeric material. Herein, a β-cyclodextrin-functionalized poly(glycerol methacrylate) (PG) segment and a quaternary amine-functionalized poly[(2-acryloyl)-ethyl-(p-boronic acid pinacol ester benzyl)diethylammonium bromide] (BP) segment are attached to complex DNA to formulate a nanoscaled delivery system based on electrostatic interactions. The formulated polyplex is strengthened by a hydrophobic poly[2-(5,5-dimethyl-1,3-dioxan-2-yloxy)ethyl acrylate] (PDM) segment, affording improved complex stability. To retrieve the polyplex from entrapment by acidic and digestive endo/lysosomes, light-stimulated ROS-producing 4,4′-(1,2-diphenylethene-1,2-diyl)bis(1,4-phenylene)diboronic acid (TPE) is installed in the cavities of cyclodextrin. Upon light irradiation, TPE is triggered to produce abundant ROS, not only committing disruption of the endo/lysosome membrane for polyplex escape from the entrapment but also inducing the transformation of the pos. charged BP to become neg. charged. This charge conversion behavior, together with the transformation of PDM to be hydrophilic and responsive to an acidic endosome pH gradient (pH 5.0) is envisioned to induce the dissociation of the electrostatically-assembled polyplex, thereby facilitating the release of the DNA payload for the subsequent transcription machinery. This strategically-tailored and easily synthesized tandem tri-copolymer exhibits excellent gene expression activity and provides a facile response to endogenous and exogenous stimuli for active gene expression.
Journal of Materials Chemistry B: Materials for Biology and Medicine published new progress about Gene therapy. 184239-35-8 belongs to class bromides-buliding-blocks, and the molecular formula is C26H18Br2, Quality Control of 184239-35-8.
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