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Borrajo ML, Lou G, Anthiya S, Lapuhs P, Álvarez DM, Tobío A, Loza MI, Vidal A, Alonso MJ. Nanoemulsions and nanocapsules as carriers for the development of intranasal mRNA vaccines. Drug Deliv Transl Res 2024; 14:2046-2061. [PMID: 38811465 PMCID: PMC11208213 DOI: 10.1007/s13346-024-01635-5] [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] [Accepted: 05/21/2024] [Indexed: 05/31/2024]
Abstract
The global emergency of coronavirus disease 2019 (COVID-19) has spurred extensive worldwide efforts to develop vaccines for protection against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Our contribution to this global endeavor involved the development of a diverse library of nanocarriers, as alternatives to lipid nanoparticles (LNPs), including nanoemulsions (NEs) and nanocapsules (NCs), with the aim of protecting and delivering messenger ribonucleic acid (mRNA) for nasal vaccination purposes. A wide range of prototypes underwent rigorous screening through a series of in vitro and in vivo experiments, encompassing assessments of cellular transfection, cytotoxicity, and intramuscular administration of a model mRNA for protein translation. As a result, two promising candidates were identified for nasal administration. One of them was a NE incorporating a combination of an ionizable lipid (C12-200) and cationic lipid (DOTAP), both intended to condense mRNA, along with DOPE, which is known to facilitate endosomal escape. This NE exhibited a size of 120 nm and a highly positive surface charge (+ 50 mV). Another candidate was an NC formulation comprising the same components and endowed with a dextran sulfate shell. This formulation showed a size of 130 nm and a moderate negative surface charge (-16 mV). Upon intranasal administration of mRNA encoding for ovalbumin (mOVA) associated with optimized versions of the said NE and NCs, a robust antigen-specific CD8 + T cell response was observed. These findings underscore the potential of NEs and polymeric NCs in advancing mRNA vaccine development for combating infectious diseases.
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Affiliation(s)
- Mireya L Borrajo
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), University de Santiago de Compostela, Av. Barcelona s/n, Campus Vida, Santiago de Compostela, 15782, Spain
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain
- IDIS Research Institute, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Gustavo Lou
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), University de Santiago de Compostela, Av. Barcelona s/n, Campus Vida, Santiago de Compostela, 15782, Spain
- IDIS Research Institute, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Shubaash Anthiya
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), University de Santiago de Compostela, Av. Barcelona s/n, Campus Vida, Santiago de Compostela, 15782, Spain
- IDIS Research Institute, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Philipp Lapuhs
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), University de Santiago de Compostela, Av. Barcelona s/n, Campus Vida, Santiago de Compostela, 15782, Spain
- IDIS Research Institute, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - David Moreira Álvarez
- Biofarma Research Group, Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), University of Santiago de Compostela, Av. Barcelona s/n, Campus Vida, Santiago de Compostela, 15782, Spain
| | - Araceli Tobío
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), University de Santiago de Compostela, Av. Barcelona s/n, Campus Vida, Santiago de Compostela, 15782, Spain
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain
- IDIS Research Institute, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - María Isabel Loza
- Biofarma Research Group, Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), University of Santiago de Compostela, Av. Barcelona s/n, Campus Vida, Santiago de Compostela, 15782, Spain
| | - Anxo Vidal
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), University de Santiago de Compostela, Av. Barcelona s/n, Campus Vida, Santiago de Compostela, 15782, Spain
- IDIS Research Institute, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - María José Alonso
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), University de Santiago de Compostela, Av. Barcelona s/n, Campus Vida, Santiago de Compostela, 15782, Spain.
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain.
- IDIS Research Institute, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain.
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Sanz Del Olmo N, García JC, Gómez R, de la Mata FJ, Ortega P. Heterofunctional carbosilane polyphenolic dendrons: new antioxidants platforms. RSC Adv 2022; 12:10280-10288. [PMID: 35424993 PMCID: PMC8972098 DOI: 10.1039/d1ra08224h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/24/2022] [Indexed: 12/03/2022] Open
Abstract
Reactive oxygen species (ROS) play a critical role in different human pathophysiological processes. ROS, together with nitrogen reactive species, generated as by-products of cellular metabolism or external factors, affects intracellular redox homeostasis. Redox-active groups found in proteins and other compounds such as polyphenols are involved in maintaining intracellular redox homeostasis. In this work, a new family of heterofunctional first-generation carbosilane dendrons functionalised with different polyphenols at the focal point and dimethylammonium groups at the periphery has been obtained through two synthetic strategies: reductive amination and straightforward amidation reaction. Their antioxidant activity has been evaluated through two spectrophotometric methods: ferric reducing antioxidant power (FRAP) assay and 2,2′-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay to establish a correlation between the number of hydroxyl groups and the antioxidant activity. Combination of carbosilane dendritic structures and polyphenol to obtain new scavenging systems.![]()
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Affiliation(s)
- Natalia Sanz Del Olmo
- Universidad de Alcalá, Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), Instituto de investigación sanitaria Ramón y Cajal (IRyCIS) 28871 Alcalá de Henares Madrid Spain .,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain and Institute "Ramón y Cajal" for Health Research (IRYCIS) Spain
| | - Juan Carlos García
- University of Alcala. Department of Biology of Systems, Biochemistry and Molecular Biology Unit Madrid Spain
| | - Rafael Gómez
- Universidad de Alcalá, Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), Instituto de investigación sanitaria Ramón y Cajal (IRyCIS) 28871 Alcalá de Henares Madrid Spain .,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain and Institute "Ramón y Cajal" for Health Research (IRYCIS) Spain
| | - F Javier de la Mata
- Universidad de Alcalá, Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), Instituto de investigación sanitaria Ramón y Cajal (IRyCIS) 28871 Alcalá de Henares Madrid Spain .,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain and Institute "Ramón y Cajal" for Health Research (IRYCIS) Spain
| | - Paula Ortega
- Universidad de Alcalá, Department of Organic and Inorganic Chemistry, Research Institute in Chemistry "Andrés M. del Río" (IQAR), Instituto de investigación sanitaria Ramón y Cajal (IRyCIS) 28871 Alcalá de Henares Madrid Spain .,Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain and Institute "Ramón y Cajal" for Health Research (IRYCIS) Spain
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Sousa CFV, Fernandez-Megia E, Borges J, Mano JF. Supramolecular dendrimer-containing layer-by-layer nanoassemblies for bioapplications: current status and future prospects. Polym Chem 2021. [DOI: 10.1039/d1py00988e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This review provides a comprehensive and critical overview of the supramolecular dendrimer-containing multifunctional layer-by-layer nanoassemblies driven by a multitude of intermolecular interactions for biological and biomedical applications.
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Affiliation(s)
- Cristiana F. V. Sousa
- CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Eduardo Fernandez-Megia
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - João Borges
- CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - João F. Mano
- CICECO–Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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4
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Alfei S, Marengo B, Zuccari G, Turrini F, Domenicotti C. Dendrimer Nanodevices and Gallic Acid as Novel Strategies to Fight Chemoresistance in Neuroblastoma Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1243. [PMID: 32604768 PMCID: PMC7353457 DOI: 10.3390/nano10061243] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/19/2020] [Accepted: 06/21/2020] [Indexed: 01/15/2023]
Abstract
Human neuroblastoma (NB), a pediatric tumor inclined to relapse, after an initial response to therapy, usually develops resistance. Since several chemotherapeutics exert anticancer effect by increasing reactive oxygen species (ROS), NB cells overproduce antioxidant compounds becoming drugs-resistant. A strategy to sensitize NB cells to chemotherapy involves reducing their antioxidant defenses and inducing ROS overproduction. Concerning this, although affected by several issues that limit their clinical application, antioxidant/pro-oxidant polyphenols, such as gallic acid (GA), showed pro-oxidant anti-cancer effects and low toxicity for healthy cells, in several kind of tumors, not including NB. Herein, for the first time, free GA, two GA-dendrimers, and the dendrimer adopted as GA reservoir were tested on both sensitive and chemoresistant NB cells. The dendrimer device, administered at the dose previously found active versus sensitive NB cells, induced ROS-mediated death also in chemoresistant cells. Free GA proved a dose-dependent ROS-mediated cytotoxicity on both cell populations. Intriguingly, when administered in dendrimer formulations at a dose not cytotoxic for NB cells, GA nullified any pro-oxidant activity of dendrimer. Unfortunately, due to GA, nanoformulations were inactive on NB cells, but GA resized in nanoparticles showed considerable ability in counteracting, at low dose, ROS production and oxidative stress, herein induced by the dendrimer.
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Affiliation(s)
- Silvana Alfei
- Department of Pharmacy (DiFAR), University of Genoa, Viale Cembrano, 16148 Genoa, Italy; (G.Z.); (F.T.)
| | - Barbara Marengo
- Department of Experimental Medicine—DIMES, University of Genoa, Via Alberti L.B., 16132 Genoa, Italy; (B.M.); (C.D.)
| | - Guendalina Zuccari
- Department of Pharmacy (DiFAR), University of Genoa, Viale Cembrano, 16148 Genoa, Italy; (G.Z.); (F.T.)
| | - Federica Turrini
- Department of Pharmacy (DiFAR), University of Genoa, Viale Cembrano, 16148 Genoa, Italy; (G.Z.); (F.T.)
| | - Cinzia Domenicotti
- Department of Experimental Medicine—DIMES, University of Genoa, Via Alberti L.B., 16132 Genoa, Italy; (B.M.); (C.D.)
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5
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Hidalgo T, Alonso-Nocelo M, Bouzo BL, Reimondez-Troitiño S, Abuin-Redondo C, de la Fuente M, Horcajada P. Biocompatible iron(iii) carboxylate metal-organic frameworks as promising RNA nanocarriers. NANOSCALE 2020; 12:4839-4845. [PMID: 32065596 DOI: 10.1039/c9nr08127e] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Despite the great interest in RNA therapeutics, the development of a successful gene delivery process is still a major challenge. We propose an efficient nucleic acid entrapment into the mesopores of biocompatible nanoscaled metal-organic frameworks. Their rapid cellular uptake together with RNA protection and release led to a relevant in vitro gene activity.
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Affiliation(s)
- T Hidalgo
- Advanced Porous Materials Unit (APMU), IMDEA Energy Institute, Av. Ramón de la Sagra 3, 28935 Móstoles-Madrid, Spain. and Institut Lavoisier, UMR CNRS8180, Université de Versailles Saint-Quentin-en-Yvelines, 45 Av. des Etats-Unis, 78035 Versailles cedex, France
| | - M Alonso-Nocelo
- Nano-Oncology Unit, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), 15706 Santiago de Compostela, Spain. and Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - B L Bouzo
- Nano-Oncology Unit, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), 15706 Santiago de Compostela, Spain. and Cancer Network Research (CIBERONC), 28029, Madrid, Spain
| | - S Reimondez-Troitiño
- Nano-Oncology Unit, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), 15706 Santiago de Compostela, Spain. and Cancer Network Research (CIBERONC), 28029, Madrid, Spain
| | - C Abuin-Redondo
- Nano-Oncology Unit, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), 15706 Santiago de Compostela, Spain.
| | - M de la Fuente
- Nano-Oncology Unit, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), 15706 Santiago de Compostela, Spain. and Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain
| | - P Horcajada
- Advanced Porous Materials Unit (APMU), IMDEA Energy Institute, Av. Ramón de la Sagra 3, 28935 Móstoles-Madrid, Spain. and Institut Lavoisier, UMR CNRS8180, Université de Versailles Saint-Quentin-en-Yvelines, 45 Av. des Etats-Unis, 78035 Versailles cedex, France
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6
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Gutiérrez-Lovera C, Vázquez-Ríos AJ, Guerra-Varela J, Sánchez L, de la Fuente M. The Potential of Zebrafish as a Model Organism for Improving the Translation of Genetic Anticancer Nanomedicines. Genes (Basel) 2017; 8:E349. [PMID: 29182542 PMCID: PMC5748667 DOI: 10.3390/genes8120349] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 11/06/2017] [Accepted: 11/21/2017] [Indexed: 12/21/2022] Open
Abstract
In the last few decades, the field of nanomedicine applied to cancer has revolutionized cancer treatment: several nanoformulations have already reached the market and are routinely being used in the clinical practice. In the case of genetic nanomedicines, i.e., designed to deliver gene therapies to cancer cells for therapeutic purposes, advances have been less impressive. This is because of the many barriers that limit the access of the therapeutic nucleic acids to their target site, and the lack of models that would allow for an improvement in the understanding of how nanocarriers can be tailored to overcome them. Zebrafish has important advantages as a model species for the study of anticancer therapies, and have a lot to offer regarding the rational development of efficient delivery of genetic nanomedicines, and hence increasing the chances of their successful translation. This review aims to provide an overview of the recent advances in the development of genetic anticancer nanomedicines, and of the zebrafish models that stand as promising tools to shed light on their mechanisms of action and overall potential in oncology.
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Affiliation(s)
- C Gutiérrez-Lovera
- Zoology, Genetics and Physical Anthropology Department Veterinary Faculty, Universidade de Santiago de Compostela, Lugo 27002, Spain.
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela 15706, Spain.
| | - A J Vázquez-Ríos
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela 15706, Spain.
| | - J Guerra-Varela
- Zoology, Genetics and Physical Anthropology Department Veterinary Faculty, Universidade de Santiago de Compostela, Lugo 27002, Spain.
- Geneaqua S.L., Lugo 27002, Spain.
| | - L Sánchez
- Zoology, Genetics and Physical Anthropology Department Veterinary Faculty, Universidade de Santiago de Compostela, Lugo 27002, Spain.
| | - M de la Fuente
- Nano-Oncology Unit, Translational Medical Oncology Group, Health Research Institute of Santiago de Compostela (IDIS), Clinical University Hospital of Santiago de Compostela (CHUS), CIBERONC, Santiago de Compostela 15706, Spain.
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7
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Goldman E, Zinger A, da Silva D, Yaari Z, Kajal A, Vardi-Oknin D, Goldfeder M, Schroeder JE, Shainsky-Roitman J, Hershkovitz D, Schroeder A. Nanoparticles target early-stage breast cancer metastasis in vivo. NANOTECHNOLOGY 2017; 28:43LT01. [PMID: 28872058 DOI: 10.1088/1361-6528/aa8a3d] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Despite advances in cancer therapy, treating cancer after it has metastasized remains an unmet clinical challenge. In this study we demonstrate that 100 nm liposomes target triple-negative murine breast-cancer metastases post intravenous administration. Metastatic breast cancer was induced in BALB/c mice either experimentally, by a tail vein injection of 4T1 cells, or spontaneously, after implanting a primary tumor xenograft. To track their biodistribution in vivo the liposomes were labeled with multi-modal diagnostic agents, including indocyanine green and rhodamine for whole-animal fluorescent imaging, gadolinium for magnetic resonance imaging (MRI), and europium for a quantitative biodistribution analysis. The accumulation of liposomes in the metastases peaked at 24 h post the intravenous administration, similar to the time they peaked in the primary tumor. The efficiency of liposomal targeting to the metastatic tissue exceeded that of a non-liposomal agent by 4.5-fold. Liposomes were detected at very early stages in the metastatic progression, including metastatic lesions smaller than 2 mm in diameter. Surprisingly, while nanoparticles target breast cancer metastasis, they may also be found in elevated levels in the pre-metastatic niche, several days before metastases are visualized by MRI or histologically in the tissue. This study highlights the promise of diagnostic and therapeutic nanoparticles for treating metastatic cancer, possibly even for preventing the onset of the metastatic dissemination by targeting the pre-metastatic niche.
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Affiliation(s)
- Evgeniya Goldman
- Laboratory for Targeted Drug Delivery and Personalized Medicine Technologies, Department of Chemical Engineering, Technion-Israel Institute of Technology, Haifa 32000, Israel. The Interdisciplinary Program for Biotechnology, Technion-Israel Institute of Technology, Haifa, Israel
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8
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Leiro V, Garcia JP, Moreno PMD, Spencer AP, Fernandez-Villamarin M, Riguera R, Fernandez-Megia E, Paula Pêgo A. Biodegradable PEG–dendritic block copolymers: synthesis and biofunctionality assessment as vectors of siRNA. J Mater Chem B 2017; 5:4901-4917. [DOI: 10.1039/c7tb00279c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
New hybrid-biodegradable PEG–dendritic block copolymers as versatile delivery vectors for biomedical applications. Here, their biofunctionality as siRNA vectors is presented.
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Affiliation(s)
- Victoria Leiro
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
| | - João Pedro Garcia
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
| | - Pedro M. D. Moreno
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
| | - Ana Patrícia Spencer
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
| | - Marcos Fernandez-Villamarin
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Ricardo Riguera
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Eduardo Fernandez-Megia
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Ana Paula Pêgo
- i3S – Instituto de Investigação e Inovação em Saúde
- Universidade do Porto
- 4200-135 Porto
- Portugal
- INEB – Instituto de Engenharia Biomédica
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Leire E, Amaral SP, Louzao I, Winzer K, Alexander C, Fernandez-Megia E, Fernandez-Trillo F. Dendrimer mediated clustering of bacteria: improved aggregation and evaluation of bacterial response and viability. Biomater Sci 2016; 4:998-1006. [PMID: 27127812 DOI: 10.1039/c6bm00079g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Here, we evaluate how cationic gallic acid-triethylene glycol (GATG) dendrimers interact with bacteria and their potential to develop new antimicrobials. We demonstrate that GATG dendrimers functionalised with primary amines in their periphery can induce the formation of clusters in Vibrio harveyi, an opportunistic marine pathogen, in a generation dependent manner. Moreover, these cationic GATG dendrimers demonstrate an improved ability to induce cluster formation when compared to poly(N-[3-(dimethylamino)propyl]methacrylamide) [p(DMAPMAm)], a cationic linear polymer previously shown to cluster bacteria. Viability of the bacteria within the formed clusters and evaluation of quorum sensing controlled phenotypes (i.e. light production in V. harveyi) suggest that GATG dendrimers may be activating microbial responses by maintaining a high concentration of quorum sensing signals inside the clusters while increasing permeability of the microbial outer membranes. Thus, the reported GATG dendrimers constitute a valuable platform for the development of novel antimicrobial materials that can target microbial viability and/or virulence.
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Affiliation(s)
- Emma Leire
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, Jenaro de la Fuente s/n, 15782 Santiago de Compostela, Spain.
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10
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Yao C, Tai Z, Wang X, Liu J, Zhu Q, Wu X, Zhang L, Zhang W, Tian J, Gao Y, Gao S. Reduction-responsive cross-linked stearyl peptide for effective delivery of plasmid DNA. Int J Nanomedicine 2015; 10:3403-16. [PMID: 26056440 PMCID: PMC4431505 DOI: 10.2147/ijn.s82413] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Low efficiency and significant toxicity are the main obstacles to successful gene delivery. We have developed a cationic reduction-responsive vector based on a disulfide cross-linked stearylated polyarginine peptide modified with histidine (C-SHR) for DNA delivery. The structure of the C-SHR was characterized, and the in vitro and in vivo transfection efficiency and cytotoxicity of C-SHR/plasmid DNA complexes were examined. Compared with non-cross-linked stearylated polyarginine peptide (SHR), C-SHR increased the intracellular uptake and dissociation behavior of the complexes. In addition, the gene transfection efficiency of C-SHR/plasmid DNA complexes in HEK293 and HeLa cells was improved and was comparable with that of bPEI-25K/plasmid DNA complexes, and the cytotoxicity of C-SHR was significantly less than that of bPEI-25K. Importantly, the in vivo gene transfection efficiency of C-SHR/plasmid DNA complexes was five fold higher than that of SHR/plasmid DNA complexes, suggesting that C-SHR is an efficient non-viral vector for DNA delivery.
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Affiliation(s)
- Chong Yao
- Department of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Zongguang Tai
- Department of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Xiaoyu Wang
- Department of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Jiyong Liu
- Department of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Quangang Zhu
- Department of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China ; Department of Pharmacy, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, People's Republic of China
| | - Xin Wu
- Department of Pharmaceutics, Shanghai First People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Lijuan Zhang
- Department of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Wei Zhang
- Department of Pharmaceutics, Shanghai Pulmonary Hospital, Shanghai Tongji University, Shanghai, People's Republic of China
| | - Jing Tian
- Department of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Yuan Gao
- Department of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Shen Gao
- Department of Pharmaceutics, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
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11
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Yang J, Zhang Q, Chang H, Cheng Y. Surface-Engineered Dendrimers in Gene Delivery. Chem Rev 2015; 115:5274-300. [DOI: 10.1021/cr500542t] [Citation(s) in RCA: 307] [Impact Index Per Article: 34.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jiepin Yang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Qiang Zhang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Hong Chang
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
| | - Yiyun Cheng
- Shanghai
Key Laboratory of
Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai 200241, P. R. China
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Leiro V, Garcia JP, Tomás H, Pêgo AP. The Present and the Future of Degradable Dendrimers and Derivatives in Theranostics. Bioconjug Chem 2015; 26:1182-97. [PMID: 25826129 DOI: 10.1021/bc5006224] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Interest in dendrimer-based nanomedicines has been growing recently, as it is possible to precisely manipulate the molecular weight, chemical composition, and surface functionality of dendrimers, tuning their properties according to the desired biomedical application. However, one important concern about dendrimer-based therapeutics remains-the nondegradability under physiological conditions of the most commonly used dendrimers. Therefore, biodegradable dendrimers represent an attractive class of nanomaterials, since they present advantages over conventional nondegradable dendrimers regarding the release of the loaded molecules and the prevention of bioaccumulation of synthetic materials and subsequent cytotoxicity. Here, we present an overview of the state-of-the-art of the design of biodegradable dendritic structures, with particular focus on the hurdles regarding the use of these as vectors of drugs and nucleic acids, as well as macromolecular contrast agents.
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Affiliation(s)
| | | | - Helena Tomás
- ⊥CQM - Centro de Química da Madeira, MMRG, Universidade da Madeira, Campus Universitário da Penteada, 9000-390 Funchal, Portugal
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Sousa-Herves A, Sánchez Espinel C, Fahmi A, González-Fernández Á, Fernandez-Megia E. In situ nanofabrication of hybrid PEG-dendritic-inorganic nanoparticles and preliminary evaluation of their biocompatibility. NANOSCALE 2015; 7:3933-3940. [PMID: 25530028 DOI: 10.1039/c4nr06155a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An in situ template fabrication of inorganic nanoparticles using carboxylated PEG-dendritic block copolymers of the GATG family is described as a function of the dendritic block generation, the metal (Au, CdSe) and metal molar ratio. The biocompatibility of the generated nanoparticles analysed in terms of their aggregation in physiological media, cytotoxicity and uptake by macrophages relates to the PEG density of the surface of the hybrids.
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Affiliation(s)
- Ana Sousa-Herves
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782, Santiago de Compostela, Spain.
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de la Fuente M, Jones MC, Santander-Ortega MJ, Mirenska A, Marimuthu P, Uchegbu I, Schätzlein A. A nano-enabled cancer-specific ITCH RNAi chemotherapy booster for pancreatic cancer. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2014; 11:369-77. [PMID: 25267700 DOI: 10.1016/j.nano.2014.09.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 09/01/2014] [Accepted: 09/18/2014] [Indexed: 02/06/2023]
Abstract
UNLABELLED Gemcitabine is currently the standard therapy for pancreatic cancer. However, growing concerns over gemcitabine resistance mean that new combinatory therapies are required to prevent loss of efficacy with prolonged treatment. Here, we suggest that this could be achieved through co-administration of RNA interference agents targeting the ubiquitin ligase ITCH. Stable anti-ITCH siRNA and shRNA dendriplexes with a desirable safety profile were prepared using generation 3 poly(propylenimine) dendrimers (DAB-Am16). The complexes were efficiently taken up by human pancreatic cancer cells and produced a 40-60% decrease in ITCH RNA and protein expression in vitro (si/shRNA) and in a xenograft model of pancreatic cancer (shRNA). When co-administered with gemcitabine (100 mg/kg/week) at a subtherapeutic dose, treatment with ITCH-shRNA (3x 50 mg/week) was able to fully suppress tumour growth for 17 days, suggesting that downregulation of ITCH mediated by DAB-Am16/shRNA sensitizes pancreatic cancer to gemcitabine in an efficient and specific manner. FROM THE CLINICAL EDITOR Gemcitabine delivery to pancreatic cancer often results in the common problem of drug resistance. This team overcame the problem through co-administration of siRNA and shRNA dendriplexes targeting the ubiquitin ligase ITCH.
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Affiliation(s)
| | | | | | - Anja Mirenska
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX
| | | | - Ijeoma Uchegbu
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX
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Sousa-Herves A, Novoa-Carballal R, Riguera R, Fernandez-Megia E. GATG dendrimers and PEGylated block copolymers: from synthesis to bioapplications. AAPS JOURNAL 2014; 16:948-61. [PMID: 25004824 DOI: 10.1208/s12248-014-9642-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 06/20/2014] [Indexed: 12/18/2022]
Abstract
Dendrimers are synthetic macromolecules composed of repetitive layers of branching units that emerge from a central core. They are characterized by a tunable size and precise number of peripheral groups which determine their physicochemical properties and function. Their high multivalency, functional surface, and globular architecture with diameters in the nanometer scale makes them ideal candidates for a wide range of applications. Gallic acid-triethylene glycol (GATG) dendrimers have attracted our attention as a promising platform in the biomedical field because of their high tunability and versatility. The presence of terminal azides in GATG dendrimers and poly(ethylene glycol) (PEG)-dendritic block copolymers allows their efficient functionalization with a variety of ligands of biomedical relevance including anionic and cationic groups, carbohydrates, peptides, or imaging agents. The resulting functionalized dendrimers have found application in drug and gene delivery, as antiviral agents and for the treatment of neurodegenerative diseases, in diagnosis and as tools to study multivalent carbohydrate recognition and dendrimer dynamics. Herein, we present an account on the preparation and recent applications of GATG dendrimers in these fields.
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Affiliation(s)
- Ana Sousa-Herves
- Department of Organic Chemistry and Center for Research in Biological Chemistry and Molecular Materials (CIQUS), University of Santiago de Compostela, Jenaro de la Fuente s/n, 15782, Santiago de Compostela, Spain
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Blasco E, Piñol M, Oriol L. Responsive linear-dendritic block copolymers. Macromol Rapid Commun 2014; 35:1090-115. [PMID: 24706548 DOI: 10.1002/marc.201400007] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 03/05/2014] [Indexed: 11/08/2022]
Abstract
The combination of dendritic and linear polymeric structures in the same macromolecule opens up new possibilities for the design of block copolymers and for applications of functional polymers that have self-assembly properties. There are three main strategies for the synthesis of linear-dendritic block copolymers (LDBCs) and, in particular, the emergence of click chemistry has made the coupling of preformed blocks one of the most efficient ways of obtaining libraries of LDBCs. In these materials, the periphery of the dendron can be precisely functionalised to obtain functional LDBCs with self-assembly properties of interest in different technological areas. The incorporation of stimuli-responsive moieties gives rise to smart materials that are generally processed as self-assemblies of amphiphilic LDBCs with a morphology that can be controlled by an external stimulus. Particular emphasis is placed on light-responsive LDBCs. Furthermore, a brief review of the biomedical or materials science applications of LDBCs is presented.
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Affiliation(s)
- Eva Blasco
- Dpt. Química Orgánica, Facultad de Ciencias - Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, Pedro Cerbuna 12, 50009, Zaragoza, Spain
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