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Viard M, Reichard H, Shapiro BA, Durrani FA, Marko AJ, Watson RM, Pandey RK, Puri A. Design and biological activity of novel stealth polymeric lipid nanoparticles for enhanced delivery of hydrophobic photodynamic therapy drugs. Nanomedicine 2018; 14:2295-2305. [PMID: 30059754 PMCID: PMC8034484 DOI: 10.1016/j.nano.2018.07.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 06/28/2018] [Accepted: 07/09/2018] [Indexed: 10/28/2022]
Abstract
Advances in in vivo stability and preferential tumor uptake of cancer nanomedicine are warranted for effective chemotherapy. Here, we describe a novel nanoformulation using an unconventional polymeric tubule-forming phospholipid, DC8,9PC. We report that DC8,9PC transitions to stable vesicles (LNPs) in the presence of PEGylated lipid (DSPE-PEG2000); the resulting DC8,9PC:DSPE-PEG2000 LNPs efficiently included a hydrophobic PDT drug, HPPH. Remarkably, these LNPs incorporated unusually high DSPE-PEG2000 concentrations; LNP10-HPPH and LNP20-HPPH (10 & 20 mol% PEGylated lipid, respectively) exhibited >90% serum stability at 37 °C. Increased PEGylation in the LNPs correlated with enhanced tumor accumulation in intravenously injected HT29 tumor mouse xenographs. Colon-26 bearing BALB/c mice, intravenously injected with LNP20-HPPH showed superior PDT efficacy and animal survival (no tumor recurrence up to 100 days) as compared to a formulation currently used in clinical trials. Taken together, we present a simple stealth binary lipid nanosystem with enhanced efficiency of tumor accumulation and superior therapeutic efficacy.
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Affiliation(s)
- Mathias Viard
- RNA Structure and Design Section, RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, U.S.A.; Leidos Biomedical Research Inc., Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, U.S.A
| | - Henry Reichard
- RNA Structure and Design Section, RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, U.S.A
| | - Bruce A Shapiro
- RNA Structure and Design Section, RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, U.S.A
| | - Farukh A Durrani
- Photodynamic Therapy Center, Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY, U.S.A
| | - Aimee J Marko
- Photodynamic Therapy Center, Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY, U.S.A
| | - R Michelle Watson
- Photodynamic Therapy Center, Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY, U.S.A
| | - Ravindra K Pandey
- Photodynamic Therapy Center, Cell Stress Biology, Roswell Park Cancer Institute, Buffalo, NY, U.S.A..
| | - Anu Puri
- RNA Structure and Design Section, RNA Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick, MD, U.S.A..
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