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Duarte ABS, Perez-Castillo Y, da Nóbrega Alves D, de Castro RD, de Souza RL, de Sousa DP, Oliveira EE. Antifungal activity against Candida albicans of methyl 3,5-dinitrobenzoate loaded nanoemulsion. Braz J Microbiol 2024; 55:25-39. [PMID: 38135805 PMCID: PMC10920570 DOI: 10.1007/s42770-023-01214-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/08/2023] [Indexed: 12/24/2023] Open
Abstract
The objective of this study was to evaluate the antifungal activity of free methyl 3,5 dinitrobenzoate (MDNB) and its nanoemulsion (MDNB-NE) against strains of Candida albicans. Additionally, a molecular modeling study was also carried out to propose the mechanism of action and toxicity of MDNB. These results demonstrated the MDNB-NE presented a droplet size of 181.16 ± 3.20 nm and polydispersity index of 0.30 ± 0.03. MDNB and MDNB-NE inhibited the growth of all strains with minimum inhibitory concentrations of 0.27-1.10 mM. The biological results corroborated the molecular model, which pointed to a multi-target antifungal mechanism of action for MDNB in C. albicans. The study could serve as a basis for further research involving compounds with nitro groups with antifungal.
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Affiliation(s)
- Allana Brunna Sucupira Duarte
- Post Graduation Program in Natural and Synthetic Bioactive Products, Federal University of Paraíba, João Pessoa, Brazil
| | - Yunierkis Perez-Castillo
- Bio-Cheminformatics Research Group and Escuela de Ciencias Físicas y Matemáticas, Universidad de Las Américas, Quito, Ecuador
| | - Danielle da Nóbrega Alves
- Laboratory of Experimental Pharmacology and Cell Culture, Department of Clinical and Social Dentistry, Federal University of Paraíba, João Pessoa, Brazil
| | - Ricardo Dias de Castro
- Laboratory of Experimental Pharmacology and Cell Culture, Department of Clinical and Social Dentistry, Federal University of Paraíba, João Pessoa, Brazil
| | | | | | - Elquio Eleamen Oliveira
- Laboratory of Synthesis and Drug Delivery, State University of Paraíba, João Pessoa, Brazil.
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2
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Chen T, Miao W, Yang Z, Yang F. From Nanovesicles to Nanobubbles Based on Repeated Compression Method. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:16740-16749. [PMID: 37962381 DOI: 10.1021/acs.langmuir.3c01817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Nanobubbles have been increasingly applied in biomedicine, which is attributed to their ability to work as ultrasound imaging contrast agents and powerful gene/drug carriers. Different production techniques or approaches have been developed to generate uniform and stable shelled nanobubbles. However, these shelled nanobubbles are usually prepared based on disordered shell materials, such as free phospholipids and polymers. In recent years, the continuous repeated compression method for a gas-liquid mixture has been developed to produce free and lipid-shelled nanobubbles. In this study, to explore the response of well-organized nanostructures to this method, the repeated compression method was used to treat preprepared liposomes and polymeric nanovesicles. Size distribution, morphologies, and ultrasound image contrast enhancement of these nanovesicles were determined before and after repeated compression. Results demonstrate that the presence of a phospholipid bilayer is vital to form liposome-based nanobubbles. And the low elastic modulus of the polymeric membrane is key to encapsulate gases into polymeric nanovesicles. Overall, it demonstrated the advantages of well-organized nanostructures to produce nanobubble structures, giving new insights into the preparation and understanding of nanobubbles.
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Affiliation(s)
- Tiandong Chen
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, Jiangsu, China
| | - Weiling Miao
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, Jiangsu, China
| | - Zhenrong Yang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, Jiangsu, China
| | - Fang Yang
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Sciences and Medical Engineering, Southeast University, Nanjing 210096, Jiangsu, China
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3
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Orabi M, Lo JF. Emerging Advances in Microfluidic Hydrogel Droplets for Tissue Engineering and STEM Cell Mechanobiology. Gels 2023; 9:790. [PMID: 37888363 PMCID: PMC10606214 DOI: 10.3390/gels9100790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
Hydrogel droplets are biodegradable and biocompatible materials with promising applications in tissue engineering, cell encapsulation, and clinical treatments. They represent a well-controlled microstructure to bridge the spatial divide between two-dimensional cell cultures and three-dimensional tissues, toward the recreation of entire organs. The applications of hydrogel droplets in regenerative medicine require a thorough understanding of microfluidic techniques, the biocompatibility of hydrogel materials, and droplet production and manipulation mechanisms. Although hydrogel droplets were well studied, several emerging advances promise to extend current applications to tissue engineering and beyond. Hydrogel droplets can be designed with high surface-to-volume ratios and a variety of matrix microstructures. Microfluidics provides precise control of the flow patterns required for droplet generation, leading to tight distributions of particle size, shape, matrix, and mechanical properties in the resultant microparticles. This review focuses on recent advances in microfluidic hydrogel droplet generation. First, the theoretical principles of microfluidics, materials used in fabrication, and new 3D fabrication techniques were discussed. Then, the hydrogels used in droplet generation and their cell and tissue engineering applications were reviewed. Finally, droplet generation mechanisms were addressed, such as droplet production, droplet manipulation, and surfactants used to prevent coalescence. Lastly, we propose that microfluidic hydrogel droplets can enable novel shear-related tissue engineering and regeneration studies.
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Affiliation(s)
| | - Joe F. Lo
- Department of Mechanical Engineering, University of Michigan, 4901 Evergreen Road, Dearborn, MI 48128, USA;
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4
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Development, Characterization, and Immunomodulatory Evaluation of Carvacrol-loaded Nanoemulsion. Molecules 2021; 26:molecules26133899. [PMID: 34202367 PMCID: PMC8271444 DOI: 10.3390/molecules26133899] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/05/2021] [Accepted: 06/16/2021] [Indexed: 01/12/2023] Open
Abstract
Carvacrol (CV) is an essential oil with numerous therapeutic properties, including immunomodulatory activity. However, this effect has not been studied in nanoemulsion systems. The objective of this study was to develop an innovative carvacrol-loaded nanoemulsion (CVNE) for immunomodulatory action. The developed CVNE comprised of 5% w/w oily phase (medium chain triglycerides + CV), 2% w/w surfactants (Tween 80®/Span 80®), and 93% w/w water, and was produced by ultrasonication. Dynamic light scattering over 90 days was used to characterize CVNE. Cytotoxic activity and quantification of cytokines were evaluated in peripheral blood mononuclear cell (PBMC) culture supernatants. CVNE achieved a drug loading of 4.29 mg/mL, droplet size of 165.70 ± 0.46 nm, polydispersity index of 0.14 ± 0.03, zeta potential of −10.25 ± 0.52 mV, and good stability for 90 days. CVNE showed no cytotoxicity at concentrations up to 200 µM in PBMCs. CV diminished the production of IL-2 in the PBMC supernatant. However, CVNE reduced the levels of the pro-inflammatory cytokines IL-2, IL-17, and IFN-γ at 50 µM. In conclusion, a stable CVNE was produced, which improved the CV immunomodulatory activity in PBMCs.
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5
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Herrmann A, Nagao T, Zhang C, Lahtz C, Li YJ, Yue C, Mülfarth R, Yu H. An effective cell-penetrating antibody delivery platform. JCI Insight 2019; 4:127474. [PMID: 31341104 DOI: 10.1172/jci.insight.127474] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 05/31/2019] [Indexed: 12/25/2022] Open
Abstract
Despite their well-recognized success in the clinic, antibodies generally do not penetrate cellular membranes to target intracellular molecules, many of which underlie incurable diseases. Here we show that covalently conjugating phosphorothioated DNA oligonucleotides to antibodies enabled their efficient cellular internalization. Antibody cell penetration was partially mediated by membrane potential alteration. Moreover, without an antigen to bind, intracellular levels of the modified antibodies underwent cellular clearance, which involved efflux and lysosomal degradation, enabling detection of intended intracellular molecules as tested in fibroblasts, tumor cells, and T cells. This target-dependent cellular retention of modified antibodies extended to in vivo studies. Both local and systemic administrations of low doses of modified antibodies effectively inhibited intracellular targets, such as transcription factors Myc, interferon regulatory factor 4, and tyrosine-protein kinase SRC, and expression of their downstream genes in tumors, resulting in tumor cell apoptosis and tumor growth inhibition. This simple modification enables the use of antibodies to detect and modulate intracellular molecules in both cultured living cells and in whole animals, forming the foundation for a new paradigm for antibody-based research, diagnostics, and therapeutics.
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Affiliation(s)
- Andreas Herrmann
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA.,LACell at Sorrento Therapeutics, San Diego, California, USA
| | - Toshikage Nagao
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Chunyan Zhang
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Christoph Lahtz
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA.,LACell at Sorrento Therapeutics, San Diego, California, USA
| | - Yi-Jia Li
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Chanyu Yue
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA.,LACell at Sorrento Therapeutics, San Diego, California, USA
| | - Ronja Mülfarth
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA
| | - Hua Yu
- Department of Immuno-Oncology, Beckman Research Institute at City of Hope Comprehensive Cancer Center, Duarte, California, USA
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6
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Villamizar-Sarmiento MG, Moreno-Villoslada I, Martínez S, Giacaman A, Miranda V, Vidal A, Orellana SL, Concha M, Pavicic F, Lisoni JG, Leyton L, Oyarzun-Ampuero FA. Ionic Nanocomplexes of Hyaluronic Acid and Polyarginine to Form Solid Materials: A Green Methodology to Obtain Sponges with Biomedical Potential. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E944. [PMID: 31261871 PMCID: PMC6669755 DOI: 10.3390/nano9070944] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2019] [Revised: 06/21/2019] [Accepted: 06/24/2019] [Indexed: 02/06/2023]
Abstract
We report on the design, development, characterization, and a preliminary cellular evaluation of a novel solid material. This material is composed of low-molecular-weight hyaluronic acid (LMWHA) and polyarginine (PArg), which generate aqueous ionic nanocomplexes (INC) that are then freeze-dried to create the final product. Different ratios of LMWHA/PArg were selected to elaborate INC, the size and zeta potential of which ranged from 100 to 200 nm and +25 to -43 mV, respectively. Turbidimetry and nanoparticle concentration analyses demonstrated the high capacity of the INC to interact with increasing concentrations of LMWHA, improving the yield of production of the nanostructures. Interestingly, once the selected formulations of INC were freeze-dried, only those comprising a larger excess of LMWHA could form reproducible sponge formulations, as seen with the naked eye. This optical behavior was consistent with the scanning transmission electron microscopy (STEM) images, which showed a tendency of the particles to agglomerate when an excess of LMWHA was present. Mechanical characterization evidenced low stiffness in the materials, attributed to the low density and high porosity. A preliminary cellular evaluation in a fibroblast cell line (RMF-EG) evidenced the concentration range where swollen formulations did not affect cell proliferation (93-464 µM) at 24, 48, or 72 h. Considering that the reproducible sponge formulations were elaborated following inexpensive and non-contaminant methods and comprised bioactive components, we postulate them with potential for biomedical purposes. Additionally, this systematic study provides important information to design reproducible porous solid materials using ionic nanocomplexes.
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Affiliation(s)
- María Gabriela Villamizar-Sarmiento
- Advanced Center of Chronic Diseases (ACCDiS), Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile
| | - Ignacio Moreno-Villoslada
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja, Casilla 567, Valdivia 5090000, Chile
| | - Samuel Martínez
- Advanced Center of Chronic Diseases (ACCDiS), Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile
| | - Annesi Giacaman
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia 5090000, Chile
- Jeffrey Modell Center of Diagnosis and Research in Primary Immunodeficiencies. Faculty of Medicine, University of La Frontera, Temuco 4780000, Chile
| | - Victor Miranda
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile
| | - Alejandra Vidal
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Sandra L Orellana
- Instituto de Ciencias Químicas, Facultad de Ciencias, Universidad Austral de Chile, Isla Teja, Casilla 567, Valdivia 5090000, Chile
| | - Miguel Concha
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Francisca Pavicic
- Instituto de Anatomía, Histología y Patología, Facultad de Medicina, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Judit G Lisoni
- NM MultiMat, Instituto de Ciencias Físicas y Matemáticas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5090000, Chile
| | - Lisette Leyton
- Advanced Center of Chronic Diseases (ACCDiS), Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile.
- Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, University of Chile, Av. Independencia 1027, Santiago 8380453, Chile.
| | - Felipe A Oyarzun-Ampuero
- Advanced Center of Chronic Diseases (ACCDiS), Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile.
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, Santiago 8380494, Chile.
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7
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Marquez J, Fernandez-Piñeiro I, Araúzo-Bravo MJ, Poschmann G, Stühler K, Khatib AM, Sanchez A, Unda F, Ibarretxe G, Bernales I, Badiola I. Targeting liver sinusoidal endothelial cells with miR-20a-loaded nanoparticles reduces murine colon cancer metastasis to the liver. Int J Cancer 2018; 143:709-719. [PMID: 29492958 DOI: 10.1002/ijc.31343] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 02/02/2018] [Accepted: 02/19/2018] [Indexed: 12/15/2022]
Abstract
Phenotypic transformation of liver sinusoidal endothelial cells is one of the most important stages of liver metastasis progression. The miRNA effects on liver sinusoidal endothelial cells during liver metastasis have not yet been studied. Herein, whole genome analysis of miRNA expression in these cells during colorectal liver metastasis revealed repressed expression of microRNA-20a. Importantly, downregulation of miR-20a occurs in parallel with upregulation of its known protein targets. To restore normal miR-20a levels in liver sinusoidal endothelial cells, we developed chondroitin sulfate-sorbitan ester nanoparticles conjugated with miR-20a in a delivery system that specifically targets liver sinusoidal endothelial cells. The restoration of normal mir-20a levels in these cells induced downregulation of the expression of its protein targets, and this also resulted in a reduction of in vitro LSEC migration and a reduction of in vivo activation and tumor-infiltrating capacity and ability of the tumor decreased by ∼80% in a murine liver metastasis model.
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Affiliation(s)
- Joana Marquez
- Department of Cell Biology and Histology, Faculty of Medicine and Nursery, University of Basque Country, UPV/EHU, Leioa, Spain
| | - Ines Fernandez-Piñeiro
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Marcos J Araúzo-Bravo
- Computational Biology and Systems Biomedicine Research Group.Computational Biology Data Analysis Platform. Biodonostia Health Research Institute, San Sebastián, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao, Spain
| | - Gereon Poschmann
- Molecular Proteomics Laboratory (MPL), Biologisch-Medizinisches Forschungszentrum (BMFZ),Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Kai Stühler
- Molecular Proteomics Laboratory (MPL), Biologisch-Medizinisches Forschungszentrum (BMFZ),Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Abdel-Majid Khatib
- Université Bordeaux, Pessac, France.,INSERM, LAMC, UMR 1029, Pessac, France
| | - Alejandro Sanchez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, Spain.,Genetics and Biology of the Development of Kidney Diseases Unit, Sanitary Research Institute (IDIS) of the University Hospital Complex of Santiago de Compostela, Santiago de Compostela, Spain
| | - Fernando Unda
- Department of Cell Biology and Histology, Faculty of Medicine and Nursery, University of Basque Country, UPV/EHU, Leioa, Spain
| | - Gaskon Ibarretxe
- Department of Cell Biology and Histology, Faculty of Medicine and Nursery, University of Basque Country, UPV/EHU, Leioa, Spain
| | - Irantzu Bernales
- Gene Expression Unit, Genomics Facility of General Research Services (SGIker), University of the Basque Country, UPV/EHU, Leioa, Spain
| | - Iker Badiola
- Department of Cell Biology and Histology, Faculty of Medicine and Nursery, University of Basque Country, UPV/EHU, Leioa, Spain
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8
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Fernandez-Piñeiro I, Pensado A, Badiola I, Sanchez A. Development and characterisation of chondroitin sulfate- and hyaluronic acid-incorporated sorbitan ester nanoparticles as gene delivery systems. Eur J Pharm Biopharm 2018; 125:85-94. [PMID: 29355685 DOI: 10.1016/j.ejpb.2018.01.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 01/03/2018] [Accepted: 01/13/2018] [Indexed: 01/02/2023]
Abstract
Glycosaminoglycans (GAGs) are natural polymers that are broadly used in gene delivery systems to increase stability as well as decrease toxicity and nonspecific interactions, thereby increasing transfection efficiency. In this work, we propose sorbitan ester-based lipid nanoparticles (SENS) functionalised with the GAGs chondroitin sulfate (CS) and hyaluronic acid (HA) as gene delivery systems. For this purpose, we describe the design and evaluation of these nanosystems loaded with plasmid DNA, including an evaluation of their physicochemical characteristics, stability properties, ability to protect and efficiently transfect cells with Enhanced Green Fluorescent Protein plasmid (pEGFP) in vitro, and biocompatibility both in vitro and in vivo. We confirm that molecules with high biological value and targeting potential, such as HA and CS, can be successfully incorporated into our recently developed sorbitan ester-based nanoparticles (SENS) and that this incorporation leads to effective stabilisation of both nanosystems as well as protects plasmid DNA. We demonstrated that the aforementioned incorporation of HA and CS enables long-term stability of the nanosystems in both liquid and lyophilised states, which is a remarkable property that can aid in their transfer to industry. The ability of these functionalised nanosystems to transfect the A549 cell line without compromising cell viability was also shown, as well as their innocuous safety profile in vivo. Thus, we provide valuable evidence of the suitable properties and potential of these hybrid nanoparticles as gene delivery systems.
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Affiliation(s)
- I Fernandez-Piñeiro
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela (USC), Campus Vida, 15782 Santiago de Compostela, Spain
| | - A Pensado
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela (USC), Campus Vida, 15782 Santiago de Compostela, Spain
| | - I Badiola
- Department of Cell Biology and Histology, Faculty of Medicine and Odontology, University of Basque Country, B° Sarriena, s/n, 48940 Leioa, Spain
| | - A Sanchez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela (USC), Campus Vida, 15782 Santiago de Compostela, Spain; Genetics and Biology of the Development of Kidney Diseases Unit, Sanitary Research Institute (IDIS) of the University Hospital Complex of Santiago de Compostela (CHUS), Travesía da Choupana, s/n, 15706 Santiago de Compostela, Spain.
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9
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Freixeiro P, Pensado A, Allen L, Humphries H, Taylor S, Seijo B, Ferreirós C, Gorringe A, Sánchez S, Sánchez A. Solid sorbitan esters nanoparticles are efficient and low-cost vehicles for subunit vaccines: Proof of concept with Neisseria meningitidis protein Mip. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.04.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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10
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Alvarez-Trabado J, Diebold Y, Sanchez A. Designing lipid nanoparticles for topical ocular drug delivery. Int J Pharm 2017; 532:204-217. [DOI: 10.1016/j.ijpharm.2017.09.017] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 09/06/2017] [Accepted: 09/07/2017] [Indexed: 02/07/2023]
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Abstract
PURPOSE OF REVIEW The current standard therapy for type 1 diabetes (T1D) is insulin replacement. Autoimmune diseases are typically treated with broad immunosuppression, but this has multiple disadvantages. Induction of antigen-specific tolerance is preferable. The application of nanomedicine to the problem of T1D can take different forms, but one promising way is the development of tolerogenic nanoparticles, the aim of which is to mitigate the islet-destroying autoimmunity. We review the topic and highlight recent strategies to produce tolerogenic nanoparticles for the purpose of treating T1D. RECENT FINDINGS Several groups are making progress in applying tolerogenic nanoparticles to rodent models of T1D, while others are using nanotechnology to aid other potential T1D treatments such as islet transplant and islet encapsulation. The strategies behind how nanoparticles achieve tolerance are varied. It is likely the future will see even greater diversity in tolerance induction strategies as well as a greater focus on how to translate this technology from preclinical use in mice to treatment of T1D in humans.
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Affiliation(s)
- Tobias Neef
- Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, 6-713 Tarry Building, 303 E. Chicago Avenue, Chicago, IL, 60611, USA
| | - Stephen D Miller
- Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, 6-713 Tarry Building, 303 E. Chicago Avenue, Chicago, IL, 60611, USA.
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12
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Pensado A, Diaz-Corrales FJ, De la Cerda B, Valdés-Sánchez L, Del Boz AA, Rodriguez-Martinez D, García-Delgado AB, Seijo B, Bhattacharya SS, Sanchez A. Span poly-L-arginine nanoparticles are efficient non-viral vectors for PRPF31 gene delivery: An approach of gene therapy to treat retinitis pigmentosa. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 12:2251-2260. [PMID: 27381066 DOI: 10.1016/j.nano.2016.06.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 05/31/2016] [Accepted: 06/16/2016] [Indexed: 12/21/2022]
Abstract
Retinitis pigmentosa (RP) is the most common cause of inherited blindness in adults. Mutations in the PRPF31 gene produce autosomal dominant RP (adRP). To date there are no effective treatments for this disease. The purpose of this study was to design an efficient non-viral vector for human PRPF31 gene delivery as an approach to treat this form of adRP. Span based nanoparticles were developed to mediate gene transfer in the subretinal space of a mouse model of adRP carrying a point mutation (A216P) in the Prpf31 gene. Funduscopic examination, electroretinogram, optomotor test and optical coherence tomography were conducted to further in vivo evaluate the safety and efficacy of the nanosystems developed. Span-polyarginine (SP-PA) nanoparticles were able to efficiently transfect the GFP and PRPF31 plasmid in mice retinas. Statistically significant improvement in visual acuity and retinal thickness were found in Prpf31A216P/+ mice treated with the SP-PA-PRPF31 nanomedicine.
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Affiliation(s)
- Andrea Pensado
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - Francisco J Diaz-Corrales
- Department of Cell Therapy and Regenerative Medicine, Andalusian Molecular Biology and Regenerative Medicine Centre (CABIMER), Seville, Spain
| | - Berta De la Cerda
- Department of Cell Therapy and Regenerative Medicine, Andalusian Molecular Biology and Regenerative Medicine Centre (CABIMER), Seville, Spain
| | - Lourdes Valdés-Sánchez
- Department of Cell Therapy and Regenerative Medicine, Andalusian Molecular Biology and Regenerative Medicine Centre (CABIMER), Seville, Spain
| | - Ana Aramburu Del Boz
- Department of Cell Therapy and Regenerative Medicine, Andalusian Molecular Biology and Regenerative Medicine Centre (CABIMER), Seville, Spain
| | - Daniel Rodriguez-Martinez
- Department of Cell Therapy and Regenerative Medicine, Andalusian Molecular Biology and Regenerative Medicine Centre (CABIMER), Seville, Spain
| | - Ana B García-Delgado
- Department of Cell Therapy and Regenerative Medicine, Andalusian Molecular Biology and Regenerative Medicine Centre (CABIMER), Seville, Spain
| | - Begoña Seijo
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain; Molecular Image Group, Health Research Institute-University Clinical Hospital of Santiago de Compostela (IDIS), Santiago de Compostela, Spain
| | - Shomi S Bhattacharya
- Department of Cell Therapy and Regenerative Medicine, Andalusian Molecular Biology and Regenerative Medicine Centre (CABIMER), Seville, Spain
| | - Alejandro Sanchez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain; Molecular Image Group, Health Research Institute-University Clinical Hospital of Santiago de Compostela (IDIS), Santiago de Compostela, Spain.
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Pensado A, Martín-Pastor M, Zorzi GK, Carvalho ES, Sanchez A. Structural analysis of nanosystems: Solid Sorbitan esters Nanoparticles (SSN) as a case study. Eur J Pharm Biopharm 2016; 104:189-99. [DOI: 10.1016/j.ejpb.2016.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/21/2016] [Accepted: 05/04/2016] [Indexed: 12/22/2022]
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André EM, Pensado A, Resnier P, Braz L, Rosa da Costa AM, Passirani C, Sanchez A, Montero-Menei CN. Characterization and comparison of two novel nanosystems associated with siRNA for cellular therapy. Int J Pharm 2015; 497:255-67. [PMID: 26617318 DOI: 10.1016/j.ijpharm.2015.11.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/08/2015] [Accepted: 11/09/2015] [Indexed: 12/16/2022]
Abstract
To direct stem cell fate, a delicate control of gene expression through small interference RNA (siRNA) is emerging as a new and safe promising strategy. In this way, the expression of proteins hindering neuronal commitment may be transiently inhibited thus driving differentiation. Mesenchymal stem cells (MSC), which secrete tissue repair factors, possess immunomodulatory properties and may differentiate towards the neuronal lineage, are a promising cell source for cell therapy studies in the central nervous system. To better drive their neuronal commitment the repressor Element-1 silencing transcription (REST) factor, may be inhibited by siRNA technology. The design of novel nanoparticles (NP) capable of safely delivering nucleic acids is crucial in order to successfully develop this strategy. In this study we developed and characterized two different siRNA NP. On one hand, sorbitan monooleate (Span(®)80) based NP incorporating the cationic components poly-l-arginine or cationized pullulan, thus allowing the association of siRNA were designed. These NP presented a small size (205 nm) and a negative surface charge (-38 mV). On the other hand, lipid nanocapsules (LNC) associating polymers with lipids and allowing encapsulation of siRNA complexed with lipoplexes were also developed. Their size was of 82 nm with a positive surface charge of +7 mV. Both NP could be frozen with appropriate cryoprotectors. Cytotoxicity and transfection efficiency at different siRNA doses were monitored by evaluating REST expression. An inhibition of around 60% of REST expression was observed with both NP when associating 250 ng/mL of siRNA-REST, as recommended for commercial reagents. Span NP were less toxic for human MSCs than LNCs, but although both NP showed a similar inhibition of REST over time and the induction of neuronal commitment, LNC-siREST induced a higher expression of neuronal markers. Therefore, two different tailored siRNA NP offering great potential for human stem cell differentiation have been developed, encouraging the pursuit of further in vitro and in vivo in studies.
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Affiliation(s)
- E M André
- PRES LUNAM-University of Angers, F-49933 Angers, France; INSERM U1066-Micro et Nanomédecines Biomimétiques, 4 rue larrey, F-49933 Angers, France
| | - A Pensado
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain
| | - P Resnier
- PRES LUNAM-University of Angers, F-49933 Angers, France; INSERM U1066-Micro et Nanomédecines Biomimétiques, 4 rue larrey, F-49933 Angers, France
| | - L Braz
- CIQA-Algarve Chemistry Research Centre, University of Algarve, 8005-139 Faro, Portugal; School of Health-University of Algarve, 8000-510 Faro, Portugal; Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - A M Rosa da Costa
- CIQA-Algarve Chemistry Research Centre, University of Algarve, 8005-139 Faro, Portugal; Department of Chemistry and Pharmacy, Faculty of Science and Technology, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - C Passirani
- PRES LUNAM-University of Angers, F-49933 Angers, France; INSERM U1066-Micro et Nanomédecines Biomimétiques, 4 rue larrey, F-49933 Angers, France
| | - A Sanchez
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain; Molecular Image Group. Health Research Institute-University Clinical Hospital of Santiago de Compostela (IDIS), A Choupana, 15706 Santiago de Compostela, Spain
| | - C N Montero-Menei
- PRES LUNAM-University of Angers, F-49933 Angers, France; INSERM U1066-Micro et Nanomédecines Biomimétiques, 4 rue larrey, F-49933 Angers, France.
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Nguyen HTP, Munnier E, Souce M, Perse X, David S, Bonnier F, Vial F, Yvergnaux F, Perrier T, Cohen-Jonathan S, Chourpa I. Novel alginate-based nanocarriers as a strategy to include high concentrations of hydrophobic compounds in hydrogels for topical application. NANOTECHNOLOGY 2015; 26:255101. [PMID: 26033822 DOI: 10.1088/0957-4484/26/25/255101] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The cutaneous penetration of hydrophobic active molecules is of foremost concern in the dermatology and cosmetic formulation fields. The poor solubility in water of those molecules limits their use in hydrophilic forms such as gels, which are favored by patients with chronic skin disease. The aim of this work is to design a novel nanocarrier of hydrophobic active molecules and to determine its potential as an ingredient of a topical form. The nanocarrier consists of an oily core surrounded by a protective shell of alginate, a natural polysaccharide isolated from brown algae. These calcium alginate-based nanocarriers (CaANCs) were prepared at room temperature and without the use of organic solvent by an accelerated nanoemulsification-polymer crosslinking method. The size (hydrodynamic diameter ~200 nm) and surface charge (zeta potential ~ - 30 mV) of the CaANCs are both compatible with their application on skin. CaANCs loaded with a fluorescent label were stable in model hydrophilic galenic forms under different storage conditions. Curcumin was encapsulated in CaANCs with an efficiency of ~95%, fully retaining its antioxidant activity. The application of the curcumin-loaded CaANCs on excised human skin led to a significant accumulation of the active molecules in the upper layers of the skin, asserting the potential of these nanocarriers in active pharmaceutical and cosmetic ingredients topical delivery.
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Affiliation(s)
- H T P Nguyen
- Université François Rabelais de Tours, EA6295 Nanomédicaments et Nanosondes, 31 avenue Monge, 37000 Tours, France
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