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Dols-Perez A, Fornaguera C, Feiner-Gracia N, Grijalvo S, Solans C, Gomila G. Effect of surface functionalization and loading on the mechanical properties of soft polymeric nanoparticles prepared by nano-emulsion templating. Colloids Surf B Biointerfaces 2023; 222:113019. [PMID: 36435028 DOI: 10.1016/j.colsurfb.2022.113019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 11/03/2022] [Accepted: 11/10/2022] [Indexed: 11/13/2022]
Abstract
Drug and gene delivery systems based on polymeric nanoparticles offer a greater efficacy and a reduced toxicity compared to traditional formulations. Recent studies have evidenced that their internalization, biodistribution and efficacy can be affected, among other factors, by their mechanical properties. Here, we analyze by means of Atomic Force Microscopy force spectroscopy how composition, surface functionalization and loading affect the mechanics of nanoparticles. For this purpose, nanoparticles made of Poly(lactic-co-glycolic) (PLGA) and Ethyl cellulose (EC) with different functionalizations and loading were prepared by nano-emulsion templating using the Phase Inversion Composition method (PIC) to form the nano-emulsions. A multiparametric nanomechanical study involving the determination of the Young's modulus, maximum deformation and breakthrough force was carried out. The obtained results showed that composition, surface functionalization and loading affect the nanomechanical properties in a different way, thus requiring, in general, to consider the overall mechanical properties after the addition of a functionalization or loading. A graphical representation method has been proposed enabling to easily identify mechanically equivalent formulations, which is expected to be useful in the development of soft polymeric nanoparticles for pre-clinical and clinical use.
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Affiliation(s)
- Aurora Dols-Perez
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Institut de Bioenginyeria de Catalunya (IBEC), C/ Balidiri i Reixac 15-21, 08028 Barcelona, Spain; Departament of Electronics and Biomedical Engineering, Universitat de Barcelona, C/ Martí i Franquès 1, 08028 Barcelona, Spain.
| | - Cristina Fornaguera
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain; Grup d'Enginyeria de Materials (Gemat) - Institut Químic de Sarrià (IQS) - Universitat Ramon Llull (URL), Barcelona, Spain
| | - Natalia Feiner-Gracia
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Santiago Grijalvo
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Conxita Solans
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona 18-26, 08034 Barcelona, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain
| | - Gabriel Gomila
- Institut de Bioenginyeria de Catalunya (IBEC), C/ Balidiri i Reixac 15-21, 08028 Barcelona, Spain; Departament of Electronics and Biomedical Engineering, Universitat de Barcelona, C/ Martí i Franquès 1, 08028 Barcelona, Spain
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2
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Woythe L, Madhikar P, Feiner-Gracia N, Storm C, Albertazzi L. A Single-Molecule View at Nanoparticle Targeting Selectivity: Correlating Ligand Functionality and Cell Receptor Density. ACS Nano 2022; 16:3785-3796. [PMID: 35274534 PMCID: PMC8945370 DOI: 10.1021/acsnano.1c08277] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [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] [Indexed: 05/16/2023]
Abstract
Antibody-functionalized nanoparticles (NPs) are commonly used to increase the targeting selectivity toward cells of interest. At a molecular level, the number of functional antibodies on the NP surface and the density of receptors on the target cell determine the targeting interaction. To rationally develop selective NPs, the single-molecule quantitation of both parameters is highly desirable. However, techniques able to count molecules with a nanometric resolution are scarce. Here, we developed a labeling approach to quantify the number of functional cetuximabs conjugated to NPs and the expression of epidermal growth factor receptors (EGFRs) in breast cancer cells using direct stochastic optical reconstruction microscopy (dSTORM). The single-molecule resolution of dSTORM allows quantifying molecules at the nanoscale, giving a detailed insight into the distributions of individual NP ligands and cell receptors. Additionally, we predicted the fraction of accessible antibody-conjugated NPs using a geometrical model, showing that the total number exceeds the accessible number of antibodies. Finally, we correlated the NP functionality, cell receptor density, and NP uptake to identify the highest cell uptake selectivity regimes. We conclude that single-molecule functionality mapping using dSTORM provides a molecular understanding of NP targeting, aiding the rational design of selective nanomedicines.
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Affiliation(s)
- Laura Woythe
- Department
of Biomedical Engineering, Institute for Complex Molecular Systems
(ICMS), Eindhoven University of Technology, Eindhoven 5612AZ, The Netherlands
| | - Pranav Madhikar
- Department
of Applied Physics, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Den Dolech 2, 5600MB Eindhoven, The Netherlands
| | - Natalia Feiner-Gracia
- Department
of Biomedical Engineering, Institute for Complex Molecular Systems
(ICMS), Eindhoven University of Technology, Eindhoven 5612AZ, The Netherlands
| | - Cornelis Storm
- Department
of Applied Physics, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Den Dolech 2, 5600MB Eindhoven, The Netherlands
| | - Lorenzo Albertazzi
- Institute
for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona 08036, Spain
- E-mail:
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3
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Boloix A, Feiner-Gracia N, Köber M, Repetto J, Pascarella R, Soriano A, Masanas M, Segovia N, Vargas-Nadal G, Merlo-Mas J, Danino D, Abutbul-Ionita I, Foradada L, Roma J, Córdoba A, Sala S, de Toledo JS, Gallego S, Veciana J, Albertazzi L, Segura MF, Ventosa N. Engineering pH-Sensitive Stable Nanovesicles for Delivery of MicroRNA Therapeutics. Small 2022; 18:e2101959. [PMID: 34786859 DOI: 10.1002/smll.202101959] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 10/15/2021] [Indexed: 06/13/2023]
Abstract
MicroRNAs (miRNAs) are small non-coding endogenous RNAs, which are attracting a growing interest as therapeutic molecules due to their central role in major diseases. However, the transformation of these biomolecules into drugs is limited due to their unstability in the bloodstream, caused by nucleases abundantly present in the blood, and poor capacity to enter cells. The conjugation of miRNAs to nanoparticles (NPs) could be an effective strategy for their clinical delivery. Herein, the engineering of non-liposomal lipid nanovesicles, named quatsomes (QS), for the delivery of miRNAs and other small RNAs into the cytosol of tumor cells, triggering a tumor-suppressive response is reported. The engineered pH-sensitive nanovesicles have controlled structure (unilamellar), size (<150 nm) and composition. These nanovesicles are colloidal stable (>24 weeks), and are prepared by a green, GMP compliant, and scalable one-step procedure, which are all unavoidable requirements for the arrival to the clinical practice of NP based miRNA therapeutics. Furthermore, QS protect miRNAs from RNAses and when injected intravenously, deliver them into liver, lung, and neuroblastoma xenografts tumors. These stable nanovesicles with tunable pH sensitiveness constitute an attractive platform for the efficient delivery of miRNAs and other small RNAs with therapeutic activity and their exploitation in the clinics.
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Affiliation(s)
- Ariadna Boloix
- Molecular Nanoscience and Organic Materials (Nanomol), Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193, Spain
- Laboratory of Translational Research in Childhood and Adolescent Cancer, Vall d'Hebron Research Institute (VHIR)-UAB, Barcelona, 08035, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, 28029, Spain
| | - Natalia Feiner-Gracia
- Nanoscopy for Nanomedicine Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, 08024, Spain
- Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5612AZ, The Netherlands
| | - Mariana Köber
- Molecular Nanoscience and Organic Materials (Nanomol), Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, 28029, Spain
| | - Javier Repetto
- Molecular Nanoscience and Organic Materials (Nanomol), Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193, Spain
| | - Rosa Pascarella
- Nanoscopy for Nanomedicine Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, 08024, Spain
- Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5612AZ, The Netherlands
| | - Aroa Soriano
- Laboratory of Translational Research in Childhood and Adolescent Cancer, Vall d'Hebron Research Institute (VHIR)-UAB, Barcelona, 08035, Spain
| | - Marc Masanas
- Laboratory of Translational Research in Childhood and Adolescent Cancer, Vall d'Hebron Research Institute (VHIR)-UAB, Barcelona, 08035, Spain
| | - Nathaly Segovia
- Molecular Nanoscience and Organic Materials (Nanomol), Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, 28029, Spain
| | - Guillem Vargas-Nadal
- Molecular Nanoscience and Organic Materials (Nanomol), Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, 28029, Spain
| | - Josep Merlo-Mas
- Nanomol Technologies SL, Campus de la UAB, Bellaterra, 08193, Spain
| | - Dganit Danino
- CryoEM Laboratory of Soft Matter, Technion - Israel Institute of Technology, Haifa, 32000, Israel
- Guangdong Technion - Israel Institute of Technology, Shantou, Guangdong Province, 515063, China
| | - Inbal Abutbul-Ionita
- CryoEM Laboratory of Soft Matter, Technion - Israel Institute of Technology, Haifa, 32000, Israel
| | - Laia Foradada
- Peptomyc S.L., Vall d'Hebron Institut d'Oncologia (VHIO)- Edifici Cellex, Barcelona, 08035, Spain
| | - Josep Roma
- Laboratory of Translational Research in Childhood and Adolescent Cancer, Vall d'Hebron Research Institute (VHIR)-UAB, Barcelona, 08035, Spain
| | - Alba Córdoba
- Nanomol Technologies SL, Campus de la UAB, Bellaterra, 08193, Spain
| | - Santi Sala
- Nanomol Technologies SL, Campus de la UAB, Bellaterra, 08193, Spain
| | - Josep Sánchez de Toledo
- Laboratory of Translational Research in Childhood and Adolescent Cancer, Vall d'Hebron Research Institute (VHIR)-UAB, Barcelona, 08035, Spain
| | - Soledad Gallego
- Laboratory of Translational Research in Childhood and Adolescent Cancer, Vall d'Hebron Research Institute (VHIR)-UAB, Barcelona, 08035, Spain
| | - Jaume Veciana
- Molecular Nanoscience and Organic Materials (Nanomol), Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, 28029, Spain
| | - Lorenzo Albertazzi
- Nanoscopy for Nanomedicine Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, 08024, Spain
- Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, Eindhoven, 5612AZ, The Netherlands
| | - Miguel F Segura
- Laboratory of Translational Research in Childhood and Adolescent Cancer, Vall d'Hebron Research Institute (VHIR)-UAB, Barcelona, 08035, Spain
| | - Nora Ventosa
- Molecular Nanoscience and Organic Materials (Nanomol), Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus UAB, Bellaterra, 08193, Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Madrid, 28029, Spain
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Llenas M, Paoli R, Feiner-Gracia N, Albertazzi L, Samitier J, Caballero D. Versatile Vessel-on-a-Chip Platform for Studying Key Features of Blood Vascular Tumors. Bioengineering (Basel) 2021; 8:bioengineering8060081. [PMID: 34207754 PMCID: PMC8226980 DOI: 10.3390/bioengineering8060081] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/26/2021] [Accepted: 06/04/2021] [Indexed: 12/19/2022] Open
Abstract
Tumor vessel-on-a-chip systems have attracted the interest of the cancer research community due to their ability to accurately recapitulate the multiple dynamic events of the metastatic cascade. Vessel-on-a-chip microfluidic platforms have been less utilized for investigating the distinctive features and functional heterogeneities of tumor-derived vascular networks. In particular, vascular tumors are characterized by the massive formation of thrombi and severe bleeding, a rare and life-threatening situation for which there are yet no clear therapeutic guidelines. This is mainly due to the lack of technological platforms capable of reproducing these characteristic traits of the pathology in a simple and well-controlled manner. Herein, we report the fabrication of a versatile tumor vessel-on-a-chip platform to reproduce, investigate, and characterize the massive formation of thrombi and hemorrhage on-chip in a fast and easy manner. Despite its simplicity, this method offers multiple advantages to recapitulate the pathophysiological events of vascular tumors, and therefore, may find useful applications in the field of vascular-related diseases, while at the same time being an alternative to more complex approaches.
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Affiliation(s)
- Marina Llenas
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15–21, 08028 Barcelona, Spain; (M.L.); (R.P.); (N.F.-G.)
- Department of Electronics and Biomedical Engineering, University of Barcelona, C. Martí i Franqués 1, 08028 Barcelona, Spain
| | - Roberto Paoli
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15–21, 08028 Barcelona, Spain; (M.L.); (R.P.); (N.F.-G.)
- Department of Electronics and Biomedical Engineering, University of Barcelona, C. Martí i Franqués 1, 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
| | - Natalia Feiner-Gracia
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15–21, 08028 Barcelona, Spain; (M.L.); (R.P.); (N.F.-G.)
| | - Lorenzo Albertazzi
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15–21, 08028 Barcelona, Spain; (M.L.); (R.P.); (N.F.-G.)
- Department of Biomedical Engineering and Institute of Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
- Correspondence: (L.A.); (J.S.); (D.C.)
| | - Josep Samitier
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15–21, 08028 Barcelona, Spain; (M.L.); (R.P.); (N.F.-G.)
- Department of Electronics and Biomedical Engineering, University of Barcelona, C. Martí i Franqués 1, 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
- Correspondence: (L.A.); (J.S.); (D.C.)
| | - David Caballero
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15–21, 08028 Barcelona, Spain; (M.L.); (R.P.); (N.F.-G.)
- Department of Electronics and Biomedical Engineering, University of Barcelona, C. Martí i Franqués 1, 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 28029 Madrid, Spain
- Correspondence: (L.A.); (J.S.); (D.C.)
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5
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Feiner-Gracia N, Glinkowska Mares A, Buzhor M, Rodriguez-Trujillo R, Samitier Marti J, Amir RJ, Pujals S, Albertazzi L. Real-Time Ratiometric Imaging of Micelles Assembly State in a Microfluidic Cancer-on-a-Chip. ACS Appl Bio Mater 2020; 4:669-681. [PMID: 33490884 PMCID: PMC7818510 DOI: 10.1021/acsabm.0c01209] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/01/2020] [Indexed: 11/29/2022]
Abstract
The performance of supramolecular nanocarriers as drug delivery systems depends on their stability in the complex and dynamic biological media. After administration, nanocarriers are challenged by physiological barriers such as shear stress and proteins present in blood, endothelial wall, extracellular matrix, and eventually cancer cell membrane. While early disassembly will result in a premature drug release, extreme stability of the nanocarriers can lead to poor drug release and low efficiency. Therefore, comprehensive understanding of the stability and assembly state of supramolecular carriers in each stage of delivery is the key factor for the rational design of these systems. One of the main challenges is that current 2D in vitro models do not provide exhaustive information, as they fail to recapitulate the 3D tumor microenvironment. This deficiency in the 2D model complexity is the main reason for the differences observed in vivo when testing the performance of supramolecular nanocarriers. Herein, we present a real-time monitoring study of self-assembled micelles stability and extravasation, combining spectral confocal microscopy and a microfluidic cancer-on-a-chip. The combination of advanced imaging and a reliable 3D model allows tracking of micelle disassembly by following the spectral properties of the amphiphiles in space and time during the crucial steps of drug delivery. The spectrally active micelles were introduced under flow and their position and conformation continuously followed by spectral imaging during the crossing of barriers, revealing the interplay between carrier structure, micellar stability, and extravasation. Integrating the ability of the micelles to change their fluorescent properties when disassembled, spectral confocal imaging and 3D microfluidic tumor blood vessel-on-a-chip resulted in the establishment of a robust testing platform suitable for real-time imaging and evaluation of supramolecular drug delivery carrier's stability.
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Affiliation(s)
- Natalia Feiner-Gracia
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology (BIST), Carrer Baldiri Reixac 15-21, 08024 Barcelona, Spain.,Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
| | - Adrianna Glinkowska Mares
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology (BIST), Carrer Baldiri Reixac 15-21, 08024 Barcelona, Spain.,Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
| | - Marina Buzhor
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel.,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Romen Rodriguez-Trujillo
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology (BIST), Carrer Baldiri Reixac 15-21, 08024 Barcelona, Spain.,Department of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona, Carrer Martí i Franquès 1, 08028 Barcelona, Spain
| | - Josep Samitier Marti
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology (BIST), Carrer Baldiri Reixac 15-21, 08024 Barcelona, Spain.,Department of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona, Carrer Martí i Franquès 1, 08028 Barcelona, Spain.,Networking Biomedical Research Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain
| | - Roey J Amir
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University, Tel-Aviv 6997801, Israel.,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University, Tel-Aviv 6997801, Israel.,BLAVATNIK CENTER for Drug Discovery, Tel-Aviv University, Tel-Aviv 6997801, Israel.,The ADAMA Center for Novel Delivery Systems in Crop Protection, Tel-Aviv University, Tel-Aviv 6997801, Israel
| | - Silvia Pujals
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology (BIST), Carrer Baldiri Reixac 15-21, 08024 Barcelona, Spain.,Department of Electronic and Biomedical Engineering, Faculty of Physics, University of Barcelona, Carrer Martí i Franquès 1, 08028 Barcelona, Spain
| | - Lorenzo Albertazzi
- Institute for Bioengineering of Catalonia, The Barcelona Institute of Science and Technology (BIST), Carrer Baldiri Reixac 15-21, 08024 Barcelona, Spain.,Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
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6
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Riera R, Feiner-Gracia N, Fornaguera C, Cascante A, Borrós S, Albertazzi L. Tracking the DNA complexation state of pBAE polyplexes in cells with super resolution microscopy. Nanoscale 2019; 11:17869-17877. [PMID: 31552987 DOI: 10.1039/c9nr02858g] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The future of gene therapy relies on the development of efficient and safe delivery vectors. Poly(β-amino ester)s are promising cationic polymers capable of condensing oligonucleotides into nanoparticles - polyplexes - and deliver them into the cell nucleus, where the gene material would be expressed. The complexation state during the crossing of biological barriers is crucial: polymers should tightly complex DNA before internalization and then release to allow free DNA to reach the nucleus. However, measuring the complexation state in cells is challenging due to the nanometric size of polyplexes and the difficulties to study the two components (polymer and DNA) independently. Here we propose a method to visualize and quantify the two components of a polyplex inside cells, with nanometre scale resolution, using two-colour direct stochastic reconstruction super-resolution microscopy (dSTORM). With our approach, we tracked the complexation state of pBAE polyplexes from cell binding to DNA release and nuclear entry revealing time evolution and the final fate of DNA and pBAE polymers in mammalian cells.
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Affiliation(s)
- Roger Riera
- Nanoscopy for Nanomedicine, Institute for Bioengineering of Catalonia, Barcelona, Spain.
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7
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Feiner-Gracia N, Olea RA, Fitzner R, El Boujnouni N, van Asbeck AH, Brock R, Albertazzi L. Super-resolution Imaging of Structure, Molecular Composition, and Stability of Single Oligonucleotide Polyplexes. Nano Lett 2019; 19:2784-2792. [PMID: 31001985 PMCID: PMC6509642 DOI: 10.1021/acs.nanolett.8b04407] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 04/11/2019] [Indexed: 05/20/2023]
Abstract
The successful application of gene therapy relies on the development of safe and efficient delivery vectors. Cationic polymers such as cell-penetrating peptides (CPPs) can condense genetic material into nanoscale particles, called polyplexes, and induce cellular uptake. With respect to this point, several aspects of the nanoscale structure of polyplexes have remained elusive because of the difficulty in visualizing the molecular arrangement of the two components with nanometer resolution. This limitation has hampered the rational design of polyplexes based on direct structural information. Here, we used super-resolution imaging to study the structure and molecular composition of individual CPP-mRNA polyplexes with nanometer accuracy. We use two-color direct stochastic optical reconstruction microscopy (dSTORM) to unveil the impact of peptide stoichiometry on polyplex structure and composition and to assess their destabilization in blood serum. Our method provides information about the size and composition of individual polyplexes, allowing the study of such properties on a single polyplex basis. Furthermore, the differences in stoichiometry readily explain the differences in cellular uptake behavior. Thus, quantitative dSTORM of polyplexes is complementary to the currently used characterization techniques for understanding the determinants of polyplex activity in vitro and inside cells.
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Affiliation(s)
- Natalia Feiner-Gracia
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering of Catalonia
(IBEC), The Barcelona Institute of Science
and Technology (BIST), Carrer Baldiri
Reixac 15-21, 08024 Barcelona, Spain
- Department
of Biomedical Engineering, Institute for Complex Molecular Systems
(ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
| | - R. Alis Olea
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering of Catalonia
(IBEC), The Barcelona Institute of Science
and Technology (BIST), Carrer Baldiri
Reixac 15-21, 08024 Barcelona, Spain
- Department
of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Robert Fitzner
- Department
of Mathematics and Computer Science, Eindhoven
University of Technology, Post Office
Box 513, 5600 MD Eindhoven, The Netherlands
| | - Najoua El Boujnouni
- Department
of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alexander H. van Asbeck
- Department
of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Roland Brock
- Department
of Biochemistry, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Lorenzo Albertazzi
- Nanoscopy
for Nanomedicine Group, Institute for Bioengineering of Catalonia
(IBEC), The Barcelona Institute of Science
and Technology (BIST), Carrer Baldiri
Reixac 15-21, 08024 Barcelona, Spain
- Department
of Biomedical Engineering, Institute for Complex Molecular Systems
(ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
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8
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Pujals S, Feiner-Gracia N, Delcanale P, Voets I, Albertazzi L. Super-resolution microscopy as a powerful tool to study complex synthetic materials. Nat Rev Chem 2019. [DOI: 10.1038/s41570-018-0070-2] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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9
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Feiner-Gracia N, Dols-Perez A, Royo M, Solans C, Garcia-Celma M, Fornaguera C. Cell penetrating peptide grafting of PLGA nanoparticles to enhance cell uptake. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.09.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Patiño T, Feiner-Gracia N, Arqué X, Miguel-López A, Jannasch A, Stumpp T, Schäffer E, Albertazzi L, Sánchez S. Influence of Enzyme Quantity and Distribution on the Self-Propulsion of Non-Janus Urease-Powered Micromotors. J Am Chem Soc 2018; 140:7896-7903. [DOI: 10.1021/jacs.8b03460] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tania Patiño
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 10-12, 08028 Barcelona, Spain
| | - Natalia Feiner-Gracia
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 10-12, 08028 Barcelona, Spain
| | - Xavier Arqué
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 10-12, 08028 Barcelona, Spain
| | - Albert Miguel-López
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 10-12, 08028 Barcelona, Spain
| | - Anita Jannasch
- Center for Plant Molecular Biology (ZMBP), University of Tübingen, Auf der Morgenstelle 32, 72076 Tübingen, Germany
| | - Tom Stumpp
- Center for Plant Molecular Biology (ZMBP), University of Tübingen, Auf der Morgenstelle 32, 72076 Tübingen, Germany
| | - Erik Schäffer
- Center for Plant Molecular Biology (ZMBP), University of Tübingen, Auf der Morgenstelle 32, 72076 Tübingen, Germany
| | - Lorenzo Albertazzi
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 10-12, 08028 Barcelona, Spain
- Department of Biomedical Engineering, Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612AZ Eindhoven, The Netherlands
| | - Samuel Sánchez
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri i Reixac 10-12, 08028 Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010 Barcelona, Spain
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11
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Feiner-Gracia N, Buzhor M, Fuentes E, Pujals S, Amir RJ, Albertazzi L. Micellar Stability in Biological Media Dictates Internalization in Living Cells. J Am Chem Soc 2017; 139:16677-16687. [PMID: 29076736 DOI: 10.1021/jacs.7b08351] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The dynamic nature of polymeric assemblies makes their stability in biological media a crucial parameter for their potential use as drug delivery systems in vivo. Therefore, it is essential to study and understand the behavior of self-assembled nanocarriers under conditions that will be encountered in vivo such as extreme dilutions and interactions with blood proteins and cells. Herein, using a combination of fluorescence spectroscopy and microscopy, we studied four amphiphilic PEG-dendron hybrids and their self-assembled micelles in order to determine their structure-stability relations. The high molecular precision of the dendritic block enabled us to systematically tune the hydrophobicity and stability of the assembled micelles. Using micelles that change their fluorescent properties upon disassembly, we observed that serum proteins bind to and interact with the polymeric amphiphiles in both their assembled and monomeric states. These interactions strongly affected the stability and enzymatic degradation of the micelles. Finally, using spectrally resolved confocal imaging, we determined the relations between the stability of the polymeric assemblies in biological media and their cell entry. Our results highlight the important interplay between molecular structure, micellar stability, and cell internalization pathways, pinpointing the high sensitivity of stability-activity relations to minor structural changes and the crucial role that these relations play in designing effective polymeric nanostructures for biomedical applications.
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Affiliation(s)
- Natalia Feiner-Gracia
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology , Baldiri Reixac 15-21, 08028 Barcelona, Spain
| | - Marina Buzhor
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel.,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel
| | - Edgar Fuentes
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology , Baldiri Reixac 15-21, 08028 Barcelona, Spain
| | - Sílvia Pujals
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology , Baldiri Reixac 15-21, 08028 Barcelona, Spain
| | - Roey J Amir
- Department of Organic Chemistry, School of Chemistry, Faculty of Exact Sciences, Tel-Aviv University , Tel-Aviv 6997801, Israel.,Tel Aviv University Center for Nanoscience and Nanotechnology, Tel-Aviv University , Tel-Aviv 6997801, Israel.,BLAVATNIK CENTER for Drug Discovery, Tel-Aviv University , Tel-Aviv 6997801, Israel
| | - Lorenzo Albertazzi
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology , Baldiri Reixac 15-21, 08028 Barcelona, Spain
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Feiner-Gracia N, Beck M, Pujals S, Tosi S, Mandal T, Buske C, Linden M, Albertazzi L. Super-Resolution Microscopy Unveils Dynamic Heterogeneities in Nanoparticle Protein Corona. Small 2017; 13:1701631. [PMID: 28922574 DOI: 10.1002/smll.201701631] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 08/01/2017] [Indexed: 05/18/2023]
Abstract
The adsorption of serum proteins, leading to the formation of a biomolecular corona, is a key determinant of the biological identity of nanoparticles in vivo. Therefore, gaining knowledge on the formation, composition, and temporal evolution of the corona is of utmost importance for the development of nanoparticle-based therapies. Here, it is shown that the use of super-resolution optical microscopy enables the imaging of the protein corona on mesoporous silica nanoparticles with single protein sensitivity. Particle-by-particle quantification reveals a significant heterogeneity in protein absorption under native conditions. Moreover, the diversity of the corona evolves over time depending on the surface chemistry and degradability of the particles. This paper investigates the consequences of protein adsorption for specific cell targeting by antibody-functionalized nanoparticles providing a detailed understanding of corona-activity relations. The methodology is widely applicable to a variety of nanostructures and complements the existing ensemble approaches for protein corona study.
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Affiliation(s)
- Natalia Feiner-Gracia
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 15-21, 08028, Barcelona, Spain
| | - Michaela Beck
- Inorganic Chemistry II, Ulm University, Albert-Einstein-Allee 11, D-89081, Ulm, Germany
| | - Sílvia Pujals
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 15-21, 08028, Barcelona, Spain
| | - Sébastien Tosi
- Advanced Digital Microscopy Core Facility (ADMCF), Institute for Research in Biomedicine (IRB Barcelona), The Barcelona Institute of Science and Technology, 08028, Barcelona, Spain
| | - Tamoghna Mandal
- Institute of Experimental Cancer Research, University Hospital Ulm, Albert-Einstein-Allee 11, D-89081, Ulm, Germany
| | - Christian Buske
- Institute of Experimental Cancer Research, University Hospital Ulm, Albert-Einstein-Allee 11, D-89081, Ulm, Germany
| | - Mika Linden
- Inorganic Chemistry II, Ulm University, Albert-Einstein-Allee 11, D-89081, Ulm, Germany
| | - Lorenzo Albertazzi
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Baldiri Reixac 15-21, 08028, Barcelona, Spain
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13
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Duro-Castano A, Nebot VJ, Niño-Pariente A, Armiñán A, Arroyo-Crespo JJ, Paul A, Feiner-Gracia N, Albertazzi L, Vicent MJ. Capturing "Extraordinary" Soft-Assembled Charge-Like Polypeptides as a Strategy for Nanocarrier Design. Adv Mater 2017; 29:1702888. [PMID: 28834624 DOI: 10.1002/adma.201702888] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/03/2017] [Indexed: 05/24/2023]
Abstract
The rational design of nanomedicines is a challenging task given the complex architectures required for the construction of nanosized carriers with embedded therapeutic properties and the complex interface of these materials with the biological environment. Herein, an unexpected charge-like attraction mechanism of self-assembly for star-shaped polyglutamates in nonsalty aqueous solutions is identified, which matches the ubiquitous "ordinary-extraordinary" phenomenon previously described by physicists. For the first time, a bottom-up methodology for the stabilization of these nanosized soft-assembled star-shaped polyglutamates is also described, enabling the translation of theoretical research into nanomaterials with applicability within the drug-delivery field. Covalent capture of these labile assemblies provides access to unprecedented architectures to be used as nanocarriers. The enhanced in vitro and in vivo properties of these novel nanoconstructs as drug-delivery systems highlight the potential of this approach for tumor-localized as well as lymphotropic delivery.
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Affiliation(s)
- Aroa Duro-Castano
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Av Eduardo Primo Yúfera 3, 46012, Valencia, Spain
| | - Vicent J Nebot
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Av Eduardo Primo Yúfera 3, 46012, Valencia, Spain
| | - Amaya Niño-Pariente
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Av Eduardo Primo Yúfera 3, 46012, Valencia, Spain
| | - Ana Armiñán
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Av Eduardo Primo Yúfera 3, 46012, Valencia, Spain
| | - Juan J Arroyo-Crespo
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Av Eduardo Primo Yúfera 3, 46012, Valencia, Spain
| | - Alison Paul
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
| | - Natalia Feiner-Gracia
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Carrer de Baldiri Reixac 15-21, 08028, Barcelona, Spain
| | - Lorenzo Albertazzi
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, Carrer de Baldiri Reixac 15-21, 08028, Barcelona, Spain
| | - María J Vicent
- Polymer Therapeutics Laboratory, Centro de Investigación Príncipe Felipe, Av Eduardo Primo Yúfera 3, 46012, Valencia, Spain
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Fornaguera C, Feiner-Gracia N, Calderó G, García-Celma MJ, Solans C. PLGA nanoparticles from nano-emulsion templating as imaging agents: Versatile technology to obtain nanoparticles loaded with fluorescent dyes. Colloids Surf B Biointerfaces 2016; 147:201-209. [PMID: 27513588 DOI: 10.1016/j.colsurfb.2016.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 04/30/2016] [Accepted: 08/02/2016] [Indexed: 02/05/2023]
Abstract
The interest in polymeric nanoparticles as imaging systems for biomedical applications has increased notably in the last decades. In this work, PLGA nanoparticles, prepared from nano-emulsion templating, have been used to prepare novel fluorescent imaging agents. Two model fluorescent dyes were chosen and dissolved in the oil phase of the nano-emulsions together with PLGA. Nano-emulsions were prepared by the phase inversion composition (PIC) low-energy method. Fluorescent dye-loaded nanoparticles were obtained by solvent evaporation of nano-emulsion templates. PLGA nanoparticles loaded with the fluorescent dyes showed hydrodynamic radii lower than 40nm; markedly lower than those reported in previous studies. The small nanoparticle size was attributed to the nano-emulsification strategy used. PLGA nanoparticles showed negative surface charge and enough stability to be used for biomedical imaging purposes. Encapsulation efficiencies were higher than 99%, which was also attributed to the nano-emulsification approach as well as to the low solubility of the dyes in the aqueous component. Release kinetics of both fluorescent dyes from the nanoparticle dispersions was pH-independent and sustained. These results indicate that the dyes could remain encapsulated enough time to reach any organ and that the decrease of the pH produced during cell internalization by the endocytic route would not affect their release. Therefore, it can be assumed that these nanoparticles are appropriate as systemic imaging agents. In addition, in vitro toxicity tests showed that nanoparticles are non-cytotoxic. Consequently, it can be concluded that the preparation of PLGA nanoparticles from nano-emulsion templating represents a very versatile technology that enables obtaining biocompatible, biodegradable and safe imaging agents suitable for biomedical purposes.
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Affiliation(s)
- C Fornaguera
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona, 18-26, Barcelona, Spain; CIBER of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain.
| | - N Feiner-Gracia
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona, 18-26, Barcelona, Spain; CIBER of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain
| | - G Calderó
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona, 18-26, Barcelona, Spain; CIBER of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain
| | - M J García-Celma
- Department of Pharmacy and Pharmaceutic Technology, University of Barcelona, Av/Joan XXIII s/n, 08028, Barcelona, Spain; CIBER of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain
| | - C Solans
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), C/Jordi Girona, 18-26, Barcelona, Spain; CIBER of Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Barcelona, Spain
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15
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Fornaguera C, Feiner-Gracia N, Calderó G, García-Celma MJ, Solans C. Galantamine-loaded PLGA nanoparticles, from nano-emulsion templating, as novel advanced drug delivery systems to treat neurodegenerative diseases. Nanoscale 2015; 7:12076-12084. [PMID: 26118655 DOI: 10.1039/c5nr03474d] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Polymeric nanoparticles could be promising drug delivery systems to treat neurodegenerative diseases. Among the various methods of nanoparticle preparation, nano-emulsion templating was used in the present study to prepare galantamine-loaded nano-emulsions by a low-energy emulsification method followed by solvent evaporation to obtain galantamine-loaded polymeric nanoparticles. This approach was found to be suitable because biocompatible, biodegradable and safe nanoparticles with appropriate features (hydrodynamic radii around 20 nm, negative surface charge and stability higher than 3 months) for their intravenous administration were obtained. Encapsulation efficiencies higher than 90 wt% were obtained with a sustained drug release profile as compared to that from aqueous and micellar solutions. The enzymatic activity of the drug was maintained at 80% after its encapsulation into nanoparticles that were non-cytotoxic at the required therapeutic concentration. Therefore, novel galantamine-loaded polymeric nanoparticles have been designed for the first time using the nano-emulsification approach and showed the appropriate features to become advanced drug delivery systems to treat neurodegenerative diseases.
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Affiliation(s)
- C Fornaguera
- Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), Spain
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