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Pianovich NA, Dean M, Lassak A, Reiss K, Jursic BS. Anticancer potential of aminomethylidene-diazinanes I. Synthesis of arylaminomethylidene of diazinetriones and its cytotoxic effects tested in glioblastoma cells. Bioorg Med Chem 2017; 25:5068-5076. [PMID: 28864149 DOI: 10.1016/j.bmc.2017.08.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 08/09/2017] [Accepted: 08/10/2017] [Indexed: 10/19/2022]
Abstract
Diazinane and aryl moieties with vinylamine linkers were synthesized to investigate the importance of their structural variations as potential anti-glioblastoma agents. Structural variations incorporated on to the diazinane moiety included oxa and thio derivatives, each with a variety of nitrogen-bound substituents. The size and shape of the aromatic moiety was varied, with the final variation introducing two carbonyl groups, yielding a substituted anthraquinone. Readily available diazinanes and aryl amines were used asan advantageous foundation. Several parameters were calculated whilst engineering these compounds, including: ClogP, molecular polarizability, polar surface area, minimal molecular projected area, and pKa. In addition, a simple and efficient procedure was developed to synthesize these compounds. It was demonstrated that a vinylamine with 1,3-diazinane-2,4,6-trione and 1-anthraquinone moiety is the most promising drug candidate causing almost 70% of LN229 tumor cell death at 1µg/ml. In addition, its molecular polarizability, polar surface area and minimal molecular projected area indicate a possible potential of this molecule for crossing BBB.
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Affiliation(s)
- Nichole A Pianovich
- Department of Chemistry, University of New Orleans, New Orleans, LA 70148, USA
| | - Mathew Dean
- Neurological Cancer Research, Stanley S. Scott Cancer Center, Department of Medicine, LSU Health Sciences Center, New Orleans, LA 70119 USA
| | - Adam Lassak
- Neurological Cancer Research, Stanley S. Scott Cancer Center, Department of Medicine, LSU Health Sciences Center, New Orleans, LA 70119 USA
| | - Krzysztof Reiss
- Neurological Cancer Research, Stanley S. Scott Cancer Center, Department of Medicine, LSU Health Sciences Center, New Orleans, LA 70119 USA
| | - Branko S Jursic
- Department of Chemistry, University of New Orleans, New Orleans, LA 70148, USA; STEPHARM, LLC., PO Box 24220, New Orleans, LA 70184, USA.
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52
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Yu D, Khan OF, Suvà ML, Dong B, Panek WK, Xiao T, Wu M, Han Y, Ahmed AU, Balyasnikova IV, Zhang HF, Sun C, Langer R, Anderson DG, Lesniak MS. Multiplexed RNAi therapy against brain tumor-initiating cells via lipopolymeric nanoparticle infusion delays glioblastoma progression. Proc Natl Acad Sci U S A 2017; 114:E6147-E6156. [PMID: 28696296 PMCID: PMC5544292 DOI: 10.1073/pnas.1701911114] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Brain tumor-initiating cells (BTICs) have been identified as key contributors to therapy resistance, recurrence, and progression of diffuse gliomas, particularly glioblastoma (GBM). BTICs are elusive therapeutic targets that reside across the blood-brain barrier, underscoring the urgent need to develop novel therapeutic strategies. Additionally, intratumoral heterogeneity and adaptations to therapeutic pressure by BTICs impede the discovery of effective anti-BTIC therapies and limit the efficacy of individual gene targeting. Recent discoveries in the genetic and epigenetic determinants of BTIC tumorigenesis offer novel opportunities for RNAi-mediated targeting of BTICs. Here we show that BTIC growth arrest in vitro and in vivo is accomplished via concurrent siRNA knockdown of four transcription factors (SOX2, OLIG2, SALL2, and POU3F2) that drive the proneural BTIC phenotype delivered by multiplexed siRNA encapsulation in the lipopolymeric nanoparticle 7C1. Importantly, we demonstrate that 7C1 nano-encapsulation of multiplexed RNAi is a viable BTIC-targeting strategy when delivered directly in vivo in an established mouse brain tumor. Therapeutic potential was most evident via a convection-enhanced delivery method, which shows significant extension of median survival in two patient-derived BTIC xenograft mouse models of GBM. Our study suggests that there is potential advantage in multiplexed targeting strategies for BTICs and establishes a flexible nonviral gene therapy platform with the capacity to channel multiplexed RNAi schemes to address the challenges posed by tumor heterogeneity.
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Affiliation(s)
- Dou Yu
- Department of Neurological Surgery, Brain Tumor Research Institute, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Omar F Khan
- Department of Chemical Engineering, Institute for Medical Engineering and Science, Harvard MIT Division of Health Science and Technology, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Mario L Suvà
- Broad Institute of Harvard and MIT, Cambridge, MA 02142
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114
- Center for Cancer Research, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114
| | - Biqin Dong
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL 60208
- Department of Mechanical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL 60208
| | - Wojciech K Panek
- Department of Neurological Surgery, Brain Tumor Research Institute, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Ting Xiao
- Department of Neurological Surgery, Brain Tumor Research Institute, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Meijing Wu
- Department of Neurological Surgery, Brain Tumor Research Institute, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Yu Han
- Department of Neurological Surgery, Brain Tumor Research Institute, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Atique U Ahmed
- Department of Neurological Surgery, Brain Tumor Research Institute, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Irina V Balyasnikova
- Department of Neurological Surgery, Brain Tumor Research Institute, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611
| | - Hao F Zhang
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL 60208
- Department of Mechanical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL 60208
| | - Cheng Sun
- Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Evanston, IL 60208
| | - Robert Langer
- Department of Chemical Engineering, Institute for Medical Engineering and Science, Harvard MIT Division of Health Science and Technology, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Daniel G Anderson
- Department of Chemical Engineering, Institute for Medical Engineering and Science, Harvard MIT Division of Health Science and Technology, David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139
| | - Maciej S Lesniak
- Department of Neurological Surgery, Brain Tumor Research Institute, The Feinberg School of Medicine, Northwestern University, Chicago, IL 60611;
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53
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King AR, Corso CD, Chen EM, Song E, Bongiorni P, Chen Z, Sundaram RK, Bindra RS, Saltzman WM. Local DNA Repair Inhibition for Sustained Radiosensitization of High-Grade Gliomas. Mol Cancer Ther 2017; 16:1456-1469. [PMID: 28566437 DOI: 10.1158/1535-7163.mct-16-0788] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 04/14/2017] [Accepted: 05/16/2017] [Indexed: 11/16/2022]
Abstract
High-grade gliomas, such as glioblastoma (GBM) and diffuse intrinsic pontine glioma (DIPG), are characterized by an aggressive phenotype with nearly universal local disease progression despite multimodal treatment, which typically includes chemotherapy, radiotherapy, and possibly surgery. Radiosensitizers that have improved the effects of radiotherapy for extracranial tumors have been ineffective for the treatment of GBM and DIPG, in part due to poor blood-brain barrier penetration and rapid intracranial clearance of small molecules. Here, we demonstrate that nanoparticles can provide sustained drug release and minimal toxicity. When administered locally, these nanoparticles conferred radiosensitization in vitro and improved survival in rats with intracranial gliomas when delivered concurrently with a 5-day course of fractionated radiotherapy. Compared with previous work using locally delivered radiosensitizers and cranial radiation, our approach, based on the rational selection of agents and a clinically relevant radiation dosing schedule, produces the strongest synergistic effects between chemo- and radiotherapy approaches to the treatment of high-grade gliomas. Mol Cancer Ther; 16(8); 1456-69. ©2017 AACR.
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Affiliation(s)
- Amanda R King
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut
| | - Christopher D Corso
- Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut
| | - Evan M Chen
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut
| | - Eric Song
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut
| | - Paul Bongiorni
- Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut
| | - Zhe Chen
- Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut
| | - Ranjini K Sundaram
- Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut
| | - Ranjit S Bindra
- Department of Therapeutic Radiology, Yale University School of Medicine, New Haven, Connecticut. .,Department of Experimental Pathology, Yale University School of Medicine, New Haven, Connecticut
| | - W Mark Saltzman
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut.
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54
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Surface chemistry governs cellular tropism of nanoparticles in the brain. Nat Commun 2017; 8:15322. [PMID: 28524852 PMCID: PMC5454541 DOI: 10.1038/ncomms15322] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 03/21/2017] [Indexed: 02/07/2023] Open
Abstract
Nanoparticles are of long-standing interest for the treatment of neurological diseases such as glioblastoma. Most past work focused on methods to introduce nanoparticles into the brain, suggesting that reaching the brain interstitium will be sufficient to ensure therapeutic efficacy. However, optimized nanoparticle design for drug delivery to the central nervous system is limited by our understanding of their cellular deposition in the brain. Here, we investigated the cellular fate of poly(lactic acid) nanoparticles presenting different surface chemistries, after administration by convection-enhanced delivery. We demonstrate that nanoparticles with ‘stealth' properties mostly avoid internalization by all cell types, but internalization can be enhanced by functionalization with bio-adhesive end-groups. We also show that association rates measured in cultured cells predict the extent of internalization of nanoparticles in cell populations. Finally, evaluating therapeutic efficacy in an orthotopic model of glioblastoma highlights the need to balance significant uptake without inducing adverse toxicity. There have been numerous attempts to develop nanomaterials to reach cells of the central nervous system for drug delivery. Here, the authors investigate the cellular fate of polymer-based nanoparticles with varying surface chemistries after administration directly into the brain.
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55
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Tosi U, Marnell CS, Chang R, Cho WC, Ting R, Maachani UB, Souweidane MM. Advances in Molecular Imaging of Locally Delivered Targeted Therapeutics for Central Nervous System Tumors. Int J Mol Sci 2017; 18:ijms18020351. [PMID: 28208698 PMCID: PMC5343886 DOI: 10.3390/ijms18020351] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 12/19/2016] [Accepted: 01/26/2017] [Indexed: 12/24/2022] Open
Abstract
Thanks to the recent advances in the development of chemotherapeutics, the morbidity and mortality of many cancers has decreased significantly. However, compared to oncology in general, the field of neuro-oncology has lagged behind. While new molecularly targeted chemotherapeutics have emerged, the impermeability of the blood–brain barrier (BBB) renders systemic delivery of these clinical agents suboptimal. To circumvent the BBB, novel routes of administration are being applied in the clinic, ranging from intra-arterial infusion and direct infusion into the target tissue (convection enhanced delivery (CED)) to the use of focused ultrasound to temporarily disrupt the BBB. However, the current system depends on a “wait-and-see” approach, whereby drug delivery is deemed successful only when a specific clinical outcome is observed. The shortcomings of this approach are evident, as a failed delivery that needs immediate refinement cannot be observed and corrected. In response to this problem, new theranostic agents, compounds with both imaging and therapeutic potential, are being developed, paving the way for improved and monitored delivery to central nervous system (CNS) malignancies. In this review, we focus on the advances and the challenges to improve early cancer detection, selection of targeted therapy, and evaluation of therapeutic efficacy, brought forth by the development of these new agents.
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Affiliation(s)
- Umberto Tosi
- Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10065, USA.
| | - Christopher S Marnell
- Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10065, USA.
| | - Raymond Chang
- Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10065, USA.
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong, China.
| | - Richard Ting
- Department of Radiology, Molecular Imaging Innovations Institute, Weill Cornell Medicine, New York, NY 10065, USA.
| | - Uday B Maachani
- Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10065, USA.
| | - Mark M Souweidane
- Department of Neurological Surgery, Weill Cornell Medical College, New York, NY 10065, USA.
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56
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Mathematical Modelling of Convection Enhanced Delivery of Carmustine and Paclitaxel for Brain Tumour Therapy. Pharm Res 2017; 34:860-873. [PMID: 28155074 DOI: 10.1007/s11095-017-2114-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 01/25/2017] [Indexed: 10/20/2022]
Abstract
PURPOSE Convection enhanced delivery (CED) is a promising method of anticancer treatment to bypass the blood-brain barrier. This paper is aimed to study drug transport under different CED operating conditions. METHODS The convection enhanced delivery of chemotherapeutics to an intact and a remnant brain tumour after resection is investigated by means of mathematical modelling of the key physical and physiological processes of drug transport. Realistic models of brain tumour and its holding tissue are reconstructed from magnetic resonance images. Mathematical modelling is performed for the delivery of carmustine and paclitaxel with different infusion rates, solution concentrations and locations of infusion site. RESULTS Modelling predications show that drug penetration can be improved by raising the infusion rate and the infusion solution concentration. The delivery of carmustine with CED is highly localised. High drug concentration only can be achieved around the infusion site. The transport of paclitaxel is more sensitive to CED-enhanced interstitial fluid as compared to carmustine, with deeper penetration into tumour interior. Infusing paclitaxel in the upstream of interstitial fluid flow leads to high spatial averaged concentration and relatively uniform distribution. CONCLUSION Results obtained in this study can be used to guide the design and optimisation of CED treatment regimens.
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57
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Zhang M, Chen X, Ying M, Gao J, Zhan C, Lu W. Glioma-Targeted Drug Delivery Enabled by a Multifunctional Peptide. Bioconjug Chem 2016; 28:775-781. [PMID: 27966896 DOI: 10.1021/acs.bioconjchem.6b00617] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The rapid proliferation of glioma relies on vigorous angiogenesis for the supply of essential nutrients; thus, a radical method of antiglioma therapy should include blocking tumor neovasculature formation. A phage display selected heptapeptide, the glioma-initiating cell peptide GICP, was previously reported as a ligand of VAV3 protein (a Rho GTPase guanine nucleotide exchange factor), which is overexpressed on glioma cells and tumor neovasculature. Therefore, GICP holds potential for the multifunctional targeting of glioma (tumor cells and neovasculature). We developed GICP-modified micelle-based paclitaxel delivery systems for antiglioma therapy in vitro and in vivo. GICP and GICP-modified PEG-PLA micelles (GICP-PEG-PLA) could be significantly taken up by U87MG cells, a human cell line derived from malignant gliomas and human umbilical vein endothelial cells (HUVECs). Furthermore, GICP-PEG-PLA micelles demonstrated enhanced penetration in a tumor spheroid model in vitro in comparison to unmodified micelles. In vivo, DiR-loaded GICP-PEG-PLA micelles exhibited superior accumulation in the tumor region by targeting neovasculature and glioma cells in nude mice bearing subcutaneous glioma. When loaded with paclitaxel, GICP-PEG-PLA micelles could more effectively suppress tumor growth and neovasculature formation than unmodified micelles in vivo. Our results indicated that GICP could serve as a promising multifunctional ligand for glioma targeting.
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Affiliation(s)
- Mingfei Zhang
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Xishan Chen
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Man Ying
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | - Jie Gao
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
| | | | - Weiyue Lu
- Department of Pharmaceutics, School of Pharmacy, Fudan University and Key Laboratory of Smart Drug Delivery , Ministry of Education, 826 Zhangheng Road, Shanghai 201203, China
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58
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Cikankowitz A, Clavreul A, Tétaud C, Lemaire L, Rousseau A, Lepareur N, Dabli D, Bouchet F, Garcion E, Menei P, Couturier O, Hindré F. Characterization of the distribution, retention, and efficacy of internal radiation of 188Re-lipid nanocapsules in an immunocompromised human glioblastoma model. J Neurooncol 2016; 131:49-58. [PMID: 27783195 DOI: 10.1007/s11060-016-2289-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Accepted: 10/09/2016] [Indexed: 10/20/2022]
Abstract
Internal radiation strategies hold great promise for glioblastoma (GB) therapy. We previously developed a nanovectorized radiotherapy that consists of lipid nanocapsules loaded with a lipophilic complex of Rhenium-188 (LNC188Re-SSS). This approach resulted in an 83 % cure rate in the 9L rat glioma model, showing great promise. The efficacy of LNC188Re-SSS treatment was optimized through the induction of a T-cell immune response in this model, as it is highly immunogenic. However, this is not representative of the human situation where T-cell suppression is usually encountered in GB patients. Thus, in this study, we investigated the efficacy of LNC188Re-SSS in a human GB model implanted in T-cell deficient nude mice. We also analyzed the distribution and tissue retention of LNC188Re-SSS. We observed that intratumoral infusion of LNCs by CED led to their complete distribution throughout the tumor and peritumoral space without leakage into the contralateral hemisphere except when large volumes were used. Seventy percent of the 188Re-SSS activity was present in the tumor region 24 h after LNC188Re-SSS injection and no toxicity was observed in the healthy brain. Double fractionated internal radiotherapy with LNC188Re-SSS triggered survival responses in the immunocompromised human GB model with a cure rate of 50 %, which was not observed with external radiotherapy. In conclusion, LNC188Re-SSS can induce long-term survival in an immunosuppressive environment, highlighting its potential for GB therapy.
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Affiliation(s)
- Annabelle Cikankowitz
- INSERM U1066 MINT (Micro et Nanomédecines Biomimétiques), Université d'Angers, Angers, France.,AMaROC, ONIRIS, Ecole Nationale Véterinaire de Nantes, Nantes, France.,PRIMEX (Plateforme de Radiobiologie et d'Imagerie Expérimentale), Université d'Angers, Angers, France
| | - Anne Clavreul
- INSERM U1066 MINT (Micro et Nanomédecines Biomimétiques), Université d'Angers, Angers, France. .,Service de Neurochirurgie, CHU d'Angers, Angers, France.
| | - Clément Tétaud
- INSERM U1066 MINT (Micro et Nanomédecines Biomimétiques), Université d'Angers, Angers, France.,PRIMEX (Plateforme de Radiobiologie et d'Imagerie Expérimentale), Université d'Angers, Angers, France
| | - Laurent Lemaire
- INSERM U1066 MINT (Micro et Nanomédecines Biomimétiques), Université d'Angers, Angers, France
| | - Audrey Rousseau
- Laboratoire de Pathologie Cellulaire et Tissulaire, CHU d'Angers, Angers, France
| | - Nicolas Lepareur
- Centre Régional de Lutte Contre le Cancer (CRLCC) Eugène Marquis, Rennes, France
| | - Djamel Dabli
- Médecine Nucléaire et Biophysique, CHU d'Angers, Angers, France
| | - Francis Bouchet
- Médecine Nucléaire et Biophysique, CHU d'Angers, Angers, France
| | - Emmanuel Garcion
- INSERM U1066 MINT (Micro et Nanomédecines Biomimétiques), Université d'Angers, Angers, France
| | - Philippe Menei
- INSERM U1066 MINT (Micro et Nanomédecines Biomimétiques), Université d'Angers, Angers, France.,Service de Neurochirurgie, CHU d'Angers, Angers, France
| | - Olivier Couturier
- INSERM U1066 MINT (Micro et Nanomédecines Biomimétiques), Université d'Angers, Angers, France.,Médecine Nucléaire et Biophysique, CHU d'Angers, Angers, France
| | - François Hindré
- INSERM U1066 MINT (Micro et Nanomédecines Biomimétiques), Université d'Angers, Angers, France.,PRIMEX (Plateforme de Radiobiologie et d'Imagerie Expérimentale), Université d'Angers, Angers, France
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Curtis C, Zhang M, Liao R, Wood T, Nance E. Systems-level thinking for nanoparticle-mediated therapeutic delivery to neurological diseases. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2016; 9. [PMID: 27562224 DOI: 10.1002/wnan.1422] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/27/2016] [Accepted: 07/17/2016] [Indexed: 12/27/2022]
Abstract
Neurological diseases account for 13% of the global burden of disease. As a result, treating these diseases costs $750 billion a year. Nanotechnology, which consists of small (~1-100 nm) but highly tailorable platforms, can provide significant opportunities for improving therapeutic delivery to the brain. Nanoparticles can increase drug solubility, overcome the blood-brain and brain penetration barriers, and provide timed release of a drug at a site of interest. Many researchers have successfully used nanotechnology to overcome individual barriers to therapeutic delivery to the brain, yet no platform has translated into a standard of care for any neurological disease. The challenge in translating nanotechnology platforms into clinical use for patients with neurological disease necessitates a new approach to: (1) collect information from the fields associated with understanding and treating brain diseases and (2) apply that information using scalable technologies in a clinically-relevant way. This approach requires systems-level thinking to integrate an understanding of biological barriers to therapeutic intervention in the brain with the engineering of nanoparticle material properties to overcome those barriers. To demonstrate how a systems perspective can tackle the challenge of treating neurological diseases using nanotechnology, this review will first present physiological barriers to drug delivery in the brain and common neurological disease hallmarks that influence these barriers. We will then analyze the design of nanotechnology platforms in preclinical in vivo efficacy studies for treatment of neurological disease, and map concepts for the interaction of nanoparticle physicochemical properties and pathophysiological hallmarks in the brain. WIREs Nanomed Nanobiotechnol 2017, 9:e1422. doi: 10.1002/wnan.1422 For further resources related to this article, please visit the WIREs website.
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Affiliation(s)
- Chad Curtis
- Department of Chemical Engineering, University of Washington, Seattle, WA, USA
| | - Mengying Zhang
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, USA
| | - Rick Liao
- Department of Chemical Engineering, University of Washington, Seattle, WA, USA
| | - Thomas Wood
- Department of Physiology, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | - Elizabeth Nance
- Department of Chemical Engineering, University of Washington, Seattle, WA, USA.,Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, USA.,Department of Radiology, University of Washington, Seattle, WA, USA.,Center on Human Development and Disability, University of Washington, Seattle, WA, USA
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60
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Gaudin A, Song E, King AR, Saucier-Sawyer JK, Bindra R, Desmaële D, Couvreur P, Saltzman WM. PEGylated squalenoyl-gemcitabine nanoparticles for the treatment of glioblastoma. Biomaterials 2016; 105:136-144. [PMID: 27521616 DOI: 10.1016/j.biomaterials.2016.07.037] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 07/27/2016] [Accepted: 07/29/2016] [Indexed: 11/25/2022]
Abstract
New treatments for glioblastoma multiforme (GBM) are desperately needed, as GBM prognosis remains poor, mainly due to treatment resistance, poor distribution of therapeutics in the tumor tissue, and fast metabolism of chemotherapeutic drugs in the brain extracellular space. Convection-enhanced delivery (CED) of nanoparticles (NPs) has been shown to improve the delivery of chemotherapeutic drugs to the tumor bed, providing sustained release, and enhancing survival of animals with intracranial tumors. Here we administered gemcitabine, a nucleoside analog used as a first line treatment for a wide variety of extracranial solid tumors, within squalene-based NPs using CED, to overcome the above-mentioned challenges of GBM treatment. Small percentages of poly(ethylene) glycol (PEG) dramatically enhanced the distribution of squalene-gemcitabine nanoparticles (SQ-Gem NPs) in healthy animals and tumor-bearing animals after administration by CED. When tested in an orthotopic model of GBM, SQ-Gem-PEG NPs demonstrated significantly improved therapeutic efficacy compared to free gemcitabine, both as a chemotherapeutic drug and as a radiosensitizer. Furthermore, MR contrast agents were incorporated into the SQ-Gem-PEG NP formulation, providing a way to non-invasively track the NPs during infusion.
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Affiliation(s)
- Alice Gaudin
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | - Eric Song
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | - Amanda R King
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA
| | | | - Ranjit Bindra
- Department of Therapeutic Radiology, Yale School of Medicine, New Haven, CT, 06511, USA
| | - Didier Desmaële
- Institut Galien Paris-Sud, UMR CNRS 8612, University Paris-Sud XI, Châtenay-Malabry, 92290, France
| | - Patrick Couvreur
- Institut Galien Paris-Sud, UMR CNRS 8612, University Paris-Sud XI, Châtenay-Malabry, 92290, France
| | - W Mark Saltzman
- Department of Biomedical Engineering, Yale University, New Haven, CT, 06511, USA.
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61
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Massadeh S, Alaamery M, Al-Qatanani S, Alarifi S, Bawazeer S, Alyafee Y. Synthesis of protein-coated biocompatible methotrexate-loaded PLA-PEG-PLA nanoparticles for breast cancer treatment. NANO REVIEWS & EXPERIMENTS 2016. [PMCID: PMC4919641 DOI: 10.3402/nano.v7.31996] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background PLA-PEG-PLA triblock polymer nanoparticles are promising tools for targeted dug delivery. The main aim in designing polymeric nanoparticles for drug delivery is achieving a controlled and targeted release of a specific drug at the therapeutically optimal rate and choosing a suitable preparation method to encapsulate the drug efficiently, which depends mainly on the nature of the drug (hydrophilic or hydrophobic). In this study, methotrexate (MTX)-loaded nanoparticles were prepared by the double emulsion method. Method Biodegradable polymer polyethylene glycol-polylactide acid tri-block was used with poly(vinyl alcohol) as emulsifier. The resulting methotrexate polymer nanoparticles were coated with bovine serum albumin in order to improve their biocompatibility. This study focused on particle size distribution, zeta potential, encapsulation efficiency, loading capacity, and in vitro drug release at various concentrations of PVA (0.5%, 1%, 2%, and 3%). Results Reduced particle size of methotrexate-loaded nanoparticles was obtained using lower PVA concentrations. Enhanced encapsulation efficiency and loading capacity was obtained using 1% PVA. FT-IR characterization was conducted for the void polymer nanoparticles and for drug-loaded nanoparticles with methotrexate, and the protein-coated nanoparticles in solid state showed the structure of the plain PEG-PLA and the drug-loaded nanoparticles with methotrexate. The methotrexate-loaded PLA-PEG-PLA nanoparticles have been studied in vitro; the drug release, drug loading, and yield are reported. Conclusion The drug release profile was monitored over a period of 168 hours, and was free of burst effect before the protein coating. The results obtained from this work are promising; this work can be taken further to develop MTX based therapies.
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Affiliation(s)
- Salam Massadeh
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Developmental Medicine Department, King Abdul Aziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
- Salam Massadeh, Developmental Medicine Department, King Abdullah International Medical Research Center (KAIMRC), Ministry of National Guard-Health affairs, P.O Box 22490, Riyadh 11426, Kingdom of Saudi Arabia,
| | - Manal Alaamery
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Developmental Medicine Department, King Abdul Aziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
| | - Shatha Al-Qatanani
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Developmental Medicine Department, King Abdul Aziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
| | - Saqer Alarifi
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, College of Pharmacy, King Abdul Aziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
| | - Shahad Bawazeer
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Developmental Medicine Department, King Abdul Aziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
| | - Yusra Alyafee
- King Abdullah International Medical Research Center, King Saud Bin Abdulaziz University for Health Sciences, Developmental Medicine Department, King Abdul Aziz Medical City, Ministry of National Guard Health Affairs, Riyadh, KSA
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