A nanoparticle-based combination chemotherapy delivery system for enhanced tumor killing by dynamic rewiring of signaling pathways.

TitleA nanoparticle-based combination chemotherapy delivery system for enhanced tumor killing by dynamic rewiring of signaling pathways.
Publication TypeJournal Article
Year of Publication2014
AuthorsMorton, SW, Lee, MJ, Deng, ZJ, Dreaden, EC, Siouve, E, Shopsowitz, KE, Shah, NJ, Yaffe, MB, Hammond, PT
JournalSci Signal
Volume7
Issue325
Paginationra44
Date Published2014 May 13
ISSN1937-9145
KeywordsAnimals, Antineoplastic Combined Chemotherapy Protocols, Doxorubicin, Drug Carriers, Erlotinib Hydrochloride, Female, Liposomes, Mice, Mice, Inbred BALB C, Nanoparticles, Neoplasms, Experimental, Quinazolines
Abstract

Exposure to the EGFR (epidermal growth factor receptor) inhibitor erlotinib promotes the dynamic rewiring of apoptotic pathways, which sensitizes cells within a specific period to subsequent exposure to the DNA-damaging agent doxorubicin. A critical challenge for translating this therapeutic network rewiring into clinical practice is the design of optimal drug delivery systems. We report the generation of a nanoparticle delivery vehicle that contained more than one therapeutic agent and produced a controlled sequence of drug release. Liposomes, representing the first clinically approved nanomedicine systems, are well-characterized, simple, and versatile platforms for the manufacture of functional and tunable drug carriers. Using the hydrophobic and hydrophilic compartments of liposomes, we effectively incorporated both hydrophobic (erlotinib) and hydrophilic (doxorubicin) small molecules, through which we achieved the desired time sequence of drug release. We also coated the liposomes with folate to facilitate targeting to cancer cells. When compared to the time-staggered application of individual drugs, staggered release from tumor-targeted single liposomal particles enhanced dynamic rewiring of apoptotic signaling pathways, resulting in improved tumor cell killing in culture and tumor shrinkage in animal models.

DOI10.1126/scisignal.2005261
Alternate JournalSci Signal
PubMed ID24825919
PubMed Central IDPMC4138219
Grant List1F32EB017614-01 / EB / NIBIB NIH HHS / United States
F32 EB017614 / EB / NIBIB NIH HHS / United States
P30 CA014051 / CA / NCI NIH HHS / United States
P30-CA14051 / CA / NCI NIH HHS / United States
R01 ES015339 / ES / NIEHS NIH HHS / United States
R01-ES015339 / ES / NIEHS NIH HHS / United States
R21 ES020466 / ES / NIEHS NIH HHS / United States
R21-ES020466 / ES / NIEHS NIH HHS / United States
U54 CA112967 / CA / NCI NIH HHS / United States
U54 CA151884 / CA / NCI NIH HHS / United States
U54-CA112967 / CA / NCI NIH HHS / United States
U54-CA151884 / CA / NCI NIH HHS / United States