Glycol chitosan nanoparticles as specialized cancer therapeutic vehicles: Sequential delivery of doxorubicin and Bcl-2 siRNA

Hong Yeol Yoon, Sejin Son, So Jin Lee, Dong Gil You, Ji Young Yhee, Jae Hyung Park, Maggie Swierczewska, Seulki Lee, Ick Chan Kwon, Sun Hwa Kim, Kwangmeyung Kim, Martin G. Pomper

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

Conventional chemotherapy is plagued with adverse side effects because cancer treatments are subject to numerous variations, most predominantly from drug resistance. Accordingly, multiple or multistage chemotherapeutic regimens are often performed, combining two or more drugs with orthogonal and possibly synergistic mechanisms. In this respect, glycol chitosan (GC)-based nanoparticles (CNPs) serve as an effective platform vehicle that can encapsulate both chemotherapeutics and siRNA to achieve maximal efficacy by overcoming resistance. Herein, DOX-encapsulated CNPs (DOX-CNPs) or Bcl-2 siRNA-encapsulated CNPs (siRNA-CNPs) exhibited similar physicochemical properties, including size, surface properties and pH sensitive behavior, regardless of the different physical features of DOX and Bcl-2 siRNA. We confirmed that the CNP platform applied to two different types of drugs results in similar in vivo biodistribution and pharmacokinetics, enhancing treatment in a dose-dependent fashion.

Original languageEnglish (US)
Article number6878
JournalScientific reports
Volume4
DOIs
StatePublished - Nov 3 2014

Bibliographical note

Funding Information:
This study was funded by the GRL Project (NRF-2013K1A1A2A02050115), the GiRC (NRF-2012K1A1A2A01055811), and the Intramural Research Program of KIST.

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