Abstract
Glioblastoma multiforme (GBM) is the most common and aggressive primary neoplasm of the brain. Poor prognosis is mainly attributed to tumor heterogeneity, invasiveness, and drug resistance. microRNA-based therapeutics represent a promising approach due to their ability to inhibit multiple targets. In this work, we aim to restore the oncosuppressor activity of microRNA-34a (miR-34a) in GBM. We developed a cationic carrier system, dendritic polyglycerolamine (dPG-NH2), which remarkably improves miRNA stability, intracellular trafficking, and activity. dPG-NH2 carrying mature miR-34a targets C-MET, CDK6, Notch1 and BCL-2, consequently inhibiting cell cycle progression, proliferation and migration of GBM cells. Following complexation with dPG-NH2, miRNA is stable in plasma and able to cross the blood-brain barrier. We further show inhibition of tumor growth following treatment with dPG-NH2-miR-34a in a human glioblastoma mouse model. We hereby present a promising technology using dPG-NH2-miR-34a polyplex for brain-tumor treatment, with enhanced efficacy and no apparent signs of toxicity.
Original language | English |
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Pages (from-to) | 2201-2214 |
Number of pages | 14 |
Journal | Nanomedicine: Nanotechnology, Biology, and Medicine |
Volume | 12 |
Issue number | 7 |
DOIs | |
State | Published - 1 Oct 2016 |
Keywords
- Glioblastoma
- MicroRNA-34a
- Polyglycerol-based polyplex
All Science Journal Classification (ASJC) codes
- Bioengineering
- Molecular Medicine
- Biomedical Engineering
- General Materials Science
- Medicine (miscellaneous)
- Pharmaceutical Science