pH driven precipitation of quisinostat onto PLA-PEG nanoparticles enables treatment of intracranial glioblastoma.

Autor: Householder KT; Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W. Thomas Rd, Phoenix, AZ, 85013, USA; School of Biological and Health Systems Engineering, Ira A. Fulton Schools of Engineering, Arizona State University, P.O. Box 879709, Tempe, AZ, 85287, USA., DiPerna DM; Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W. Thomas Rd, Phoenix, AZ, 85013, USA., Chung EP; Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W. Thomas Rd, Phoenix, AZ, 85013, USA., Luning AR; Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W. Thomas Rd, Phoenix, AZ, 85013, USA., Nguyen DT; School of Biological and Health Systems Engineering, Ira A. Fulton Schools of Engineering, Arizona State University, P.O. Box 879709, Tempe, AZ, 85287, USA., Stabenfeldt SE; School of Biological and Health Systems Engineering, Ira A. Fulton Schools of Engineering, Arizona State University, P.O. Box 879709, Tempe, AZ, 85287, USA., Mehta S; Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W. Thomas Rd, Phoenix, AZ, 85013, USA., Sirianni RW; Barrow Brain Tumor Research Center, Barrow Neurological Institute, 350 W. Thomas Rd, Phoenix, AZ, 85013, USA; School of Biological and Health Systems Engineering, Ira A. Fulton Schools of Engineering, Arizona State University, P.O. Box 879709, Tempe, AZ, 85287, USA. Electronic address: rachael.sirianni@dignityhealth.org.
Jazyk: angličtina
Zdroj: Colloids and surfaces. B, Biointerfaces [Colloids Surf B Biointerfaces] 2018 Jun 01; Vol. 166, pp. 37-44. Date of Electronic Publication: 2018 Feb 24.
DOI: 10.1016/j.colsurfb.2018.02.048
Abstrakt: Histone deacetylases (HDACs) are known to be key enzymes in cancer development and progression through their modulation of chromatin structure and the expression and post-translational modification of numerous proteins. Aggressive dedifferentiated tumors, like glioblastoma, frequently overexpress HDACs, while HDAC inhibition can lead to cell cycle arrest, promote cellular differentiation and induce apoptosis. Although multiple HDAC inhibitors, such as quisinostat, are of interest in oncology due to their potent in vitro efficacy, their failure in the clinic as monotherapies against solid tumors has been attributed to poor delivery. Thus, we were motivated to develop quisinostat loaded poly(D,L-lactide)-b-methoxy poly(ethylene glycol) nanoparticles (NPs) to test their ability to treat orthotopic glioblastoma. In developing our NP formulation, we identified a novel, pH-driven approach for achieving over 9% (w/w) quisinostat loading. We show quisinostat-loaded NPs maintain drug potency in vitro and effectively slow tumor growth in vivo, leading to a prolonged survival compared to control mice.
(Copyright © 2018 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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