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Sanhueza C, Vergara D, Chávez-Aravena C, Gálvez-Jiron F, Chavez-Angel E, Castro-Alvarez A. Functionalizing Dendrimers for Targeted Delivery of Bioactive Molecules to Macrophages: A Potential Treatment for Mycobacterium tuberculosis Infection-A Review. Pharmaceuticals (Basel) 2023; 16:1428. [PMID: 37895899 PMCID: PMC10609949 DOI: 10.3390/ph16101428] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/26/2023] [Accepted: 09/29/2023] [Indexed: 10/29/2023] Open
Abstract
Tuberculosis (TB) is an infectious disease caused by Mycobacterium tuberculosis that replicates inside human alveolar macrophages. This disease causes significant morbidity and mortality throughout the world. According to the World Health Organization 1.4 million people died of this disease in 2021. This indicates that despite the progress of modern medicine, improvements in diagnostics, and the development of drug susceptibility tests, TB remains a global threat to public health. In this sense, host-directed therapy may provide a new approach to the cure of TB, and the expression of miRNAs has been correlated with a change in the concentration of various inflammatory mediators whose concentrations are responsible for the pathophysiology of M. tuberculosis infection. Thus, the administration of miRNAs may help to modulate the immune response of organisms. However, direct administration of miRNAs, without adequate encapsulation, exposes nucleic acids to the activity of cytosolic nucleases, limiting their application. Dendrimers are a family of highly branched molecules with a well-defined architecture and a branched conformation which gives rise to cavities that facilitate physical immobilization, and functional groups that allow chemical interaction with molecules of interest. Additionally, dendrimers can be easily functionalized to target different cells, macrophages among them. In this sense, various studies have proposed the use of different cell receptors as target molecules to aim dendrimers at macrophages and thus release drugs or nucleic acids in the cell of interest. Based on the considerations, the primary objective of this review is to comprehensively explore the potential of functionalized dendrimers as delivery vectors for miRNAs and other therapeutic agents into macrophages. This work aims to provide insights into the use of functionalized dendrimers as an innovative approach for TB treatment, focusing on their ability to target and deliver therapeutic cargo to macrophages.
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Affiliation(s)
- Claudia Sanhueza
- Centro de Excelencia en Medicina Traslacional (CEMT), Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile
| | - Daniela Vergara
- Centro de Excelencia en Medicina Traslacional (CEMT), Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile
| | - Catalina Chávez-Aravena
- Departamento de Ciencias Preclínicas, Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile
| | - Felipe Gálvez-Jiron
- Doctorado en Ciencias Mención Biología Celular y Molecular Aplicada, Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile
| | - Emigdio Chavez-Angel
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193 Barcelona, Spain
| | - Alejandro Castro-Alvarez
- Departamento de Ciencias Preclínicas, Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile
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Garaiová Z, Gašperová M, Šubjaková V, Hianik T. Interaction of G-quadruplex Forming DNA Aptamers with PAMAM Dendrimers Studied by Dynamic Light Scattering and UV-VIS Spectrophotometry. Chemphyschem 2023; 24:e202300264. [PMID: 37318900 DOI: 10.1002/cphc.202300264] [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: 04/13/2023] [Revised: 06/07/2023] [Accepted: 06/12/2023] [Indexed: 06/17/2023]
Abstract
The complexes of G-quadruplex forming DNA thrombin binding aptamers (TBA) and polyamidoamine dendrimers (PAMAM) were studied with the aim to form a model targeted drug delivery system. Hydrodynamic diameter, zeta potential and melting temperature (Tm ) were investigated by dynamic light scattering and UV-VIS spectrophotometry. Non-covalent adsorption by means of electrostatic interaction between positively charged amino groups of dendrimers (+) and negatively charged phosphate groups of aptamers (-) has driven the formation of aggregates. The size of complexes was in the range of 0.2-2 μm and depended on the type of dispersant, charge ratio (+/-) and temperature. Raising the temperature increased the polydispersity, new smaller size distributions were observed indicating the G-quadruplex unfolding. The melting transition temperature of TBA aptamer was affected by the presence of amino-terminated PAMAM rather than carboxylated succinic acid PAMAM-SAH dendrimer, thus supporting the electrostatic nature of interaction that disturbed denaturation of target-specific quadruplex aptamer structure.
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Affiliation(s)
- Zuzana Garaiová
- Department of Nuclear Physics and Biophysics Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48, Bratislava, Slovakia
| | - Martina Gašperová
- Department of Nuclear Physics and Biophysics Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48, Bratislava, Slovakia
| | - Veronika Šubjaková
- Department of Nuclear Physics and Biophysics Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48, Bratislava, Slovakia
| | - Tibor Hianik
- Department of Nuclear Physics and Biophysics Faculty of Mathematics, Physics and Informatics, Comenius University, Mlynská dolina F1, 842 48, Bratislava, Slovakia
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Arredondo C, Cefaliello C, Dyrda A, Jury N, Martinez P, Díaz I, Amaro A, Tran H, Morales D, Pertusa M, Stoica L, Fritz E, Corvalán D, Abarzúa S, Méndez-Ruette M, Fernández P, Rojas F, Kumar MS, Aguilar R, Almeida S, Weiss A, Bustos FJ, González-Nilo F, Otero C, Tevy MF, Bosco DA, Sáez JC, Kähne T, Gao FB, Berry JD, Nicholson K, Sena-Esteves M, Madrid R, Varela D, Montecino M, Brown RH, van Zundert B. Excessive release of inorganic phosphate by ALS/FTD astrocytes causes non-cell-autonomous toxicity to motoneurons. Neuron 2022; 110:1656-1670.e12. [PMID: 35276083 DOI: 10.1016/j.neuron.2022.02.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Revised: 10/01/2021] [Accepted: 02/15/2022] [Indexed: 12/13/2022]
Abstract
Non-cell-autonomous mechanisms contribute to neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD), in which astrocytes release unidentified factors that are toxic to motoneurons (MNs). We report here that mouse and patient iPSC-derived astrocytes with diverse ALS/FTD-linked mutations (SOD1, TARDBP, and C9ORF72) display elevated levels of intracellular inorganic polyphosphate (polyP), a ubiquitous, negatively charged biopolymer. PolyP levels are also increased in astrocyte-conditioned media (ACM) from ALS/FTD astrocytes. ACM-mediated MN death is prevented by degrading or neutralizing polyP in ALS/FTD astrocytes or ACM. Studies further reveal that postmortem familial and sporadic ALS spinal cord sections display enriched polyP staining signals and that ALS cerebrospinal fluid (CSF) exhibits increased polyP concentrations. Our in vitro results establish excessive astrocyte-derived polyP as a critical factor in non-cell-autonomous MN degeneration and a potential therapeutic target for ALS/FTD. The CSF data indicate that polyP might serve as a new biomarker for ALS/FTD.
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Affiliation(s)
- Cristian Arredondo
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Carolina Cefaliello
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Agnieszka Dyrda
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Nur Jury
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Pablo Martinez
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Iván Díaz
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Armando Amaro
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Helene Tran
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Danna Morales
- Program of Physiology and Biophysics, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile; Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago 9160000, Chile
| | - Maria Pertusa
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago 9160000, Chile; Millennium Nucleus for the Study of Pain (MiNuSPain), Santiago 9160000, Chile; Department of Biology, Faculty of Chemistry and Biology, Universidad de Santiago de Chile, Santiago 9160000, Chile
| | - Lorelei Stoica
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA; Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Elsa Fritz
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Daniela Corvalán
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Sebastián Abarzúa
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile; FONDAP Center for Genome Regulation, Santiago 8370146, Chile
| | - Maxs Méndez-Ruette
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Paola Fernández
- Instituto de Neurociencias, Centro Interdisciplinario de Neurociencias de Valparaíso, Universidad de Valparaíso, Valparaíso 2340000, Chile
| | - Fabiola Rojas
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile
| | - Meenakshi Sundaram Kumar
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Rodrigo Aguilar
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile
| | - Sandra Almeida
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Alexandra Weiss
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Fernando J Bustos
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile
| | - Fernando González-Nilo
- Instituto de Neurociencias, Centro Interdisciplinario de Neurociencias de Valparaíso, Universidad de Valparaíso, Valparaíso 2340000, Chile; Center for Bioinformatics and Integrative Biology (CBIB), Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile
| | - Carolina Otero
- School of Chemistry and Pharmacy, Faculty of Medicine, Universidad Andres Bello, Santiago 8320000, Chile
| | - Maria Florencia Tevy
- Cell Biology Laboratory, INTA, University of Chile and GEDIS Biotech, Santiago 7810000, Chile
| | - Daryl A Bosco
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Juan C Sáez
- Instituto de Neurociencias, Centro Interdisciplinario de Neurociencias de Valparaíso, Universidad de Valparaíso, Valparaíso 2340000, Chile
| | - Thilo Kähne
- Institute of Experimental Internal Medicine, Medical School, Otto von Guericke University Magdeburg, Magdeburg 39120, Germany
| | - Fen-Biao Gao
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - James D Berry
- Massachusetts General Hospital Neurological Clinical Research Institute and Harvard Medical School, Boston, MA 02114, USA
| | - Katharine Nicholson
- Massachusetts General Hospital Neurological Clinical Research Institute and Harvard Medical School, Boston, MA 02114, USA
| | - Miguel Sena-Esteves
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA; Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, MA 01655, USA
| | - Rodolfo Madrid
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago 9160000, Chile; Millennium Nucleus for the Study of Pain (MiNuSPain), Santiago 9160000, Chile; Department of Biology, Faculty of Chemistry and Biology, Universidad de Santiago de Chile, Santiago 9160000, Chile
| | - Diego Varela
- Program of Physiology and Biophysics, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago 8380453, Chile; Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Santiago 9160000, Chile
| | - Martin Montecino
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; FONDAP Center for Genome Regulation, Santiago 8370146, Chile
| | - Robert H Brown
- Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA
| | - Brigitte van Zundert
- Institute of Biomedical Sciences (ICB), Faculty of Medicine & Faculty of Life Sciences, Universidad Andres Bello, Santiago 8370186, Chile; CARE Biomedical Research Center, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago 8331150, Chile; Department of Neurology, University of Massachusetts Chan Medical School, Worcester, MA 01655, USA.
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Tang C, Liu H, Fan Y, He J, Li F, Wang J, Hou Y. Functional Nanomedicines for Targeted Therapy of Bladder Cancer. Front Pharmacol 2021; 12:778973. [PMID: 34867408 PMCID: PMC8635105 DOI: 10.3389/fphar.2021.778973] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/29/2021] [Indexed: 12/29/2022] Open
Abstract
Bladder cancer is one of most common malignant urinary tract tumor types with high incidence worldwide. In general, transurethral resection of non-muscle-invasive bladder cancer followed by intravesical instillation of chemotherapy is the standard treatment approach to minimize recurrence and delay progression of bladder cancer. However, conventional intravesical chemotherapy lacks selectivity for tumor tissues and the concentration of drug is reduced with the excretion of urine, leading to frequent administration and heavy local irritation symptoms. While nanomedicines can overcome all the above shortcomings and adhere to the surface of bladder tumors for a long time, and continuously and efficiently release drugs to bladder cancers. The rapid advances in targeted therapy have led to significant improvements in drug efficacy and precision of targeted drug delivery to eradicate tumor cells, with reduced side-effects. This review summarizes the different available nano-systems of targeted drug delivery to bladder cancer tissues. The challenges and prospects of targeted therapy for bladder cancer are additionally discussed.
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Affiliation(s)
- Chao Tang
- Department of Urology, the First Hospital of Jilin University, Changchun, China
| | - Heng Liu
- Department of Urology, the First Hospital of Jilin University, Changchun, China
| | - Yanpeng Fan
- Department of Urology, the First Hospital of Jilin University, Changchun, China
| | - Jiahao He
- School of Chemical Engineering, Changchun University of Technology, Changchun, China
| | - Fuqiu Li
- Department of Dermatology, the Second Hospital of Jilin University, Changchun, China
| | - Jin Wang
- Department of Urology, the First Hospital of Jilin University, Changchun, China
| | - Yuchuan Hou
- Department of Urology, the First Hospital of Jilin University, Changchun, China
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Dąbkowska M, Ulańczyk Z, Łuczkowska K, Rogińska D, Sobuś A, Wasilewska M, Olszewska M, Jakubowska K, Machaliński B. The role of the electrokinetic charge of neurotrophis-based nanocarriers: protein distribution, toxicity, and oxidative stress in in vitro setting. J Nanobiotechnology 2021; 19:258. [PMID: 34454520 PMCID: PMC8399784 DOI: 10.1186/s12951-021-00984-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 08/05/2021] [Indexed: 12/29/2022] Open
Abstract
Background The rational chemical design of nanoparticles can be readily controlled and optimized by quantitatively studying protein adsorption at variously charged polymer carriers, determining their fate in biological fluids. We manufactured brain-derived neurotrophic factor (BDNF) -based electrostatic nanocomplexes with a different type of dendrimer core (anionic or cationic), encapsulated or not in polyethylene glycol (PEG), and studied their physicochemical properties and behavior in a biological setting. We investigated whether the electrokinetic charge of dendrimer core influences BDNF loading and desorption from the nanoparticle and serves as a determinant of nanoparticles’ behavior in in vitro setting, influencing mitochondrial dysfunction, lipid peroxidation, and general nanoparticles’ cellular toxicity. Results We found that the electrokinetic charge of the dendrimer core influences nanoparticles in terms of BDNF release profile from their surfaces and their effect on cell viability, mitochondrial membrane potential, cell phenotype, and induction of oxidative stress. The electrostatic interaction of positively charged core of nanoparticles with cell membranes increases their cytotoxicity, as well as serious phenotype alterations compared to negatively charged nanoparticles core in neuron-like differentiated human neuroblastoma cells. Moreover, PEG adsorption at nanoparticles with negatively charged core presents a distinct decrease in metabolic cell activity. On the contrary, charge neutralization due to PEG adsorption on the surface of nanoparticles with positively charged core does not reduce their cytotoxicity, makes them less biocompatible with differentiated cells, and presumably shows non-specific toxicity. Conclusions The surface charge transformation after adsorption of protein or polyelectrolyte during nanocarriers formulation has an important role not only in designing nanomaterials with potent neuroprotective and neuroregenerative properties but also in applying them in a cellular environment. Graphic abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-00984-4.
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Affiliation(s)
- Maria Dąbkowska
- Department of Medical Chemistry, Pomeranian Medical University, Rybacka 1, 70-204, Szczecin, Poland.
| | - Zofia Ulańczyk
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-204, Szczecin, Poland
| | - Karolina Łuczkowska
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-204, Szczecin, Poland
| | - Dorota Rogińska
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-204, Szczecin, Poland
| | - Anna Sobuś
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-204, Szczecin, Poland
| | - Monika Wasilewska
- Jerzy Haber Institute of Catalysis and Surface Chemistry Polish Academy of Sciences, Niezapominajek 8, 30-239, Cracow, Poland
| | - Maria Olszewska
- Department of Medical Chemistry, Pomeranian Medical University, Rybacka 1, 70-204, Szczecin, Poland
| | - Katarzyna Jakubowska
- Department of Biochemistry, Pomeranian Medical University, Rybacka 1, 70-204, Szczecin, Poland
| | - Bogusław Machaliński
- Department of General Pathology, Pomeranian Medical University, Rybacka 1, 70-204, Szczecin, Poland
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Skóra B, Szychowski KA, Gmiński J. A concise review of metallic nanoparticles encapsulation methods and their potential use in anticancer therapy and medicine. Eur J Pharm Biopharm 2020; 154:153-165. [PMID: 32681962 DOI: 10.1016/j.ejpb.2020.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 05/29/2020] [Accepted: 07/02/2020] [Indexed: 02/08/2023]
Abstract
Interest in the use of metallic nanoparticles (NPs) in medicine is constantly increasing. The key challenge to the introduction of NPs into anticancer treatment is to limit the contact of their surface with healthy cells and to enable specific targeting of certain tissues, for example, cancerous cells. These aspects have raised a question whether the recent methods of drug delivery allow restricting the contact of NPs with healthy and/or nontarget cells. NPs can be restricted by encapsulation, which involves entrapping them into organic layers. This review is the first to present the different approaches for the encapsulation of metallic NPs, using liposomes, dendrimers, and proteins. The types and methods of entrapping are shown in an accessible way, enriched with graphics, and the pros and cons of these methods are disputable. Furthermore, the potential uses of NP complexes in medicine are described.
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Affiliation(s)
- Bartosz Skóra
- Department of Lifestyle Disorders and Regenerative Medicine, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland.
| | - Konrad A Szychowski
- Department of Lifestyle Disorders and Regenerative Medicine, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland
| | - Jan Gmiński
- Department of Lifestyle Disorders and Regenerative Medicine, University of Information Technology and Management in Rzeszow, Sucharskiego 2, 35-225 Rzeszow, Poland
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Avila-Salas F, González RI, Ríos PL, Araya-Durán I, Camarada MB. Effect of the Generation of PAMAM Dendrimers on the Stabilization of Gold Nanoparticles. J Chem Inf Model 2020; 60:2966-2976. [DOI: 10.1021/acs.jcim.0c00052] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Fabián Avila-Salas
- Centro de Nanotecnologı́a Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile
- Núcleo de Quı́mica y Bioquímica, Facultad de Estudios Interdisciplinarios, Universidad Mayor, Santiago 8580745, Chile
| | - Rafael I. González
- Centro de Nanotecnologı́a Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile
- Center for the Development of Nanoscience and Nanotechnology—CEDENNA, Santiago 9170124, Chile
| | - Paulina L. Ríos
- Centro de Nanotecnologı́a Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile
| | - Ingrid Araya-Durán
- Centro de Nanotecnologı́a Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile
| | - María B. Camarada
- Centro de Nanotecnologı́a Aplicada, Facultad de Ciencias, Universidad Mayor, Santiago 8580745, Chile
- Núcleo de Quı́mica y Bioquímica, Facultad de Estudios Interdisciplinarios, Universidad Mayor, Santiago 8580745, Chile
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Fatemi SM, Fatemi SJ, Abbasi Z. PAMAM dendrimer-based macromolecules and their potential applications: recent advances in theoretical studies. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-019-03076-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Srinageshwar B, Dils A, Sturgis J, Wedster A, Kathirvelu B, Baiyasi S, Swanson D, Sharma A, Dunbar GL, Rossignol J. Surface-Modified G4 PAMAM Dendrimers Cross the Blood-Brain Barrier Following Multiple Tail-Vein Injections in C57BL/6J Mice. ACS Chem Neurosci 2019; 10:4145-4150. [PMID: 31390175 DOI: 10.1021/acschemneuro.9b00347] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Intracranial injections are currently used to deliver drugs into the brain, as most drugs cannot cross the blood-brain barrier (BBB) following systemic injections. Moreover, multiple dosing is difficult with invasive techniques. Therefore, viable systemic techniques are necessary to facilitate treatment paradigms that require multiple dosing of therapeutics across the BBB. In this study, we show that mixed-surface fourth-generation poly(amidoamine) (PAMAM) dendrimers containing predominantly biocompatible hydroxyl groups and a few amine groups are taken up by cultured primary cortical neurons derived from mouse embryo. We also show that these dendrimers cross the BBB following their administration to healthy mice in multiple doses via tail-vein injections and are taken up by neurons and the glial cells as evidenced by appropriate staining methods. Besides the brain, the dendrimers were found mostly in the kidneys compared to other peripheral organs, such as liver, lungs, and spleen, implying that they may be readily excreted, thereby preventing potential toxic accumulation in the body. Our findings provide a proof-of-concept that appropriate surface modifications of dendrimers provide safe, biocompatible nanomaterial with the potential to deliver therapeutic cargo across the BBB into the brain via multiple tail-vein injections.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Gary L. Dunbar
- Field Neurosciences Institute, St. Mary’s of Michigan, Saginaw 48604, Michigan, United States
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Mignani S, Shi X, Zablocka M, Majoral JP. Dendrimer-Enabled Therapeutic Antisense Delivery Systems as Innovation in Medicine. Bioconjug Chem 2019; 30:1938-1950. [PMID: 31246431 DOI: 10.1021/acs.bioconjchem.9b00385] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Antisense oligonucleotide (AON)-based therapies concern the treatment for genetic disorders or infections such as a range of neurodegenerative and neuromuscular diseases and have shown benefits in animal models and patients. Nevertheless, successes in the clinic are still strongly limited by unfavorable biodistribution and poor cellular uptake of AONs. Dendrimer macromolecules are synthetically accessible and consist of a core with repeated iterations (named branches) surrounding this core, and on the periphery functional groups which can be modified for ligand attachment. The generations of these branched nanoparticles are based on the number of branches emanating from the core with layered architectures. Dendrimers show promise in several biomedical applications based on their tunable surface modifications allowing the adjustment of their in vivo behavior related to biocompatibility and pharmacokinetic parameters. Dendrimers can be used as nanocarriers of various types of drugs including AONs or nanodrugs. As nanocarriers, polycationic dendrimers can complex multiple negatively charged DNA oligonucleotides on their surface and form stable complexes to promote internalization into the cells based on a good cell membrane affinity. These nanocarriers complexing antisense oligonucleotides must be stable enough to reach the cellular target, but with adequate in vivo global clearance, and have good pharmacokinetic (PK) and pharmacodynamic (PD) profiles. This Review was designed to analyze the development of AONs carried by polycationic and polyanionic (few example) dendrimers. This Review strongly supports the idea that dendrimers, with adequate modulation of their terminal groups, could be used to carry AONs in cells.
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Affiliation(s)
- Serge Mignani
- Department of Pharmacy , Zhengzhou Railway Vocational & Technical College , Zhengzhou 450018 , China.,Université Paris Descartes, PRES Sorbonne Paris Cité, CNRS UMR 860 , Laboratoire de Chimie et de Biochimie Pharmacologiques et Toxicologique , 45, rue des Saints Peres , 75006 Paris , France.,CQM - Centro de Química da Madeira, MMRG , Universidade da Madeira , Campus da Penteada, 9020-105 Funchal , Portugal.,Glycovax Pharma , 424 Guy Street, Suite 202 , Montreal , Quebec H3J 1S6 , Canada
| | - Xiangyang Shi
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , Shanghai 201620 , China
| | - Maria Zablocka
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - Jean-Pierre Majoral
- Department of Pharmacy , Zhengzhou Railway Vocational & Technical College , Zhengzhou 450018 , China.,Laboratoire de Chimie de Coordination du CNRS , 205 route de Narbonne , 31077 , Toulouse Cedex 4, France.,Université Toulouse , 118 route de Narbonne , 31077 Toulouse Cedex 4, France
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11
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Rodríguez-Fonseca RA, Bello M, de Los Muñoz-Fernández MÁ, Luis Jiménez J, Rojas-Hernández S, Fragoso-Vázquez MJ, Gutiérrez-Sánchez M, Rodrigues J, Cayetano-Castro N, Borja-Urby R, Rodríguez-Cortés O, García-Machorro J, Correa-Basurto J. In silico search, chemical characterization and immunogenic evaluation of amino-terminated G4-PAMAM-HIV peptide complexes using three-dimensional models of the HIV-1 gp120 protein. Colloids Surf B Biointerfaces 2019; 177:77-93. [PMID: 30711762 DOI: 10.1016/j.colsurfb.2019.01.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 12/26/2018] [Accepted: 01/18/2019] [Indexed: 02/05/2023]
Abstract
Peptide epitopes have been widely used to develop synthetic vaccines and immunotherapies. However, peptide epitopes may exhibit poor absorption or immunogenicity due to their low molecular weights. Conversely, fourth-generation polyamidoamine (G4-PAMAM) dendrimers are nonimmunogenic and relatively nontoxic synthetic nanoparticles that have been used as adjuvants and nanocarriers of small peptides and to improve nasal absorption. Based on this information, we hypothesized that the combination of intranasal immunization and G4-PAMAM dendrimers would be useful for enhancing the antibody responses of HIV-1 gp120 peptide epitopes. Therefore, we first used structural data, peptide epitope predictors and docking and MD simulations on MHC-II to identify two peptide epitopes on the CD4 binding site of HIV-1 gp120. The formation of G4-PAMAM-peptide complexes was evaluated in silico (molecular docking studies using different G4-PAMAM conformations retrieved from MD simulations as well as the MMGBSA approach) and validated experimentally (electrophoresis, 1H NMR and cryo-TEM). Next, the G4-PAMAM dendrimer-peptide complexes were administered intranasally to groups of female BALB/cJ mice. The results showed that both peptides were immunogenic at the systemic and mucosal levels (nasal and vaginal), and G4-PAMAM dendrimer-peptide complexes improved IgG and IgA responses in serum and nasal washes. Thus, G4-PAMAM dendrimers have potential for use as adjuvants and nanocarriers of peptides.
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Affiliation(s)
- Rolando Alberto Rodríguez-Fonseca
- Laboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotécnológica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Ciudad de México 11340, Mexico
| | - Martiniano Bello
- Laboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotécnológica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Ciudad de México 11340, Mexico
| | | | - José Luis Jiménez
- Sección Inmunología, Laboratorio InmunoBiología Molecular, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - Saúl Rojas-Hernández
- Laboratorio de Inmunología Molecular, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Ciudad de México 11340, Mexico
| | - M J Fragoso-Vázquez
- Departamento de Química Orgánica, Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Mara Gutiérrez-Sánchez
- Laboratorio de Inmunología Molecular, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Ciudad de México 11340, Mexico
| | - João Rodrigues
- Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105, Funchal, Portugal; Centro de Química da Madeira, Universidade da Madeira, Campus Universitário da Penteada, 9020-105, Funchal, Portugal and School of Materials Science and Engineering/Center for Nano Energy Materials, Northwestern Polytechnical University, Xi'an 710072, China
| | - N Cayetano-Castro
- Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional, Mexico
| | - R Borja-Urby
- Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional, Mexico
| | - Octavio Rodríguez-Cortés
- Laboratorio 103, Escuela Superior de Medicina, Instituto Politécnico Nacional, Calle Plan de San Luis y Díaz Mirón S/N, Casco de Santo Tomas, Miguel Hidalgo, 11340, Ciudad de México, Mexico
| | - Jazmín García-Machorro
- Laboratorio de Medicina de Conservación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Ciudad de México, 11340, Mexico.
| | - José Correa-Basurto
- Laboratorio de Diseño y Desarrollo de Nuevos Fármacos e Innovación Biotécnológica (Laboratory for the Design and Development of New Drugs and Biotechnological Innovation), Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, Ciudad de México 11340, Mexico.
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12
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Rodríguez-Fonseca RA, Bello M, de los Muñoz-Fernández MÁ, Luis Jiménez J, Rojas-Hernández S, Fragoso-Vázquez M, Gutiérrez-Sánchez M, Rodrigues J, Cayetano-Castro N, Borja-Urby R, Rodríguez-Cortés O, García-Machorro J, Correa-Basurto J. In silico search, chemical characterization and immunogenic evaluation of amino-terminated G4-PAMAM-HIV peptide complexes using three-dimensional models of the HIV-1 gp120 protein. Colloids Surf B Biointerfaces 2019. [DOI: https://doi.org/10.1016/j.colsurfb.2019.01.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Florendo M, Figacz A, Srinageshwar B, Sharma A, Swanson D, Dunbar GL, Rossignol J. Use of Polyamidoamine Dendrimers in Brain Diseases. Molecules 2018; 23:molecules23092238. [PMID: 30177605 PMCID: PMC6225146 DOI: 10.3390/molecules23092238] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 08/24/2018] [Accepted: 08/28/2018] [Indexed: 12/18/2022] Open
Abstract
Polyamidoamine (PAMAM) dendrimers are one of the smallest and most precise nanomolecules available today, which have promising applications for the treatment of brain diseases. Each aspect of the dendrimer (core, size or generation, size of cavities, and surface functional groups) can be precisely modulated to yield a variety of nanocarriers for delivery of drugs and genes to brain cells in vitro or in vivo. Two of the most important criteria to consider when using PAMAM dendrimers for neuroscience applications is their safety profile and their potential to be prepared in a reproducible manner. Based on these criteria, features of PAMAM dendrimers are described to help the neuroscience researcher to judiciously choose the right type of dendrimer and the appropriate method for loading the drug to form a safe and effective delivery system to the brain.
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Affiliation(s)
- Maria Florendo
- College of Medicine, Central Michigan University, Mt. Pleasant, MI 48859, USA.
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI 48859, USA.
| | - Alexander Figacz
- College of Medicine, Central Michigan University, Mt. Pleasant, MI 48859, USA.
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI 48859, USA.
| | - Bhairavi Srinageshwar
- College of Medicine, Central Michigan University, Mt. Pleasant, MI 48859, USA.
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI 48859, USA.
- Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI 48859, USA.
| | - Ajit Sharma
- Department of Chemistry & Biochemistry, Central Michigan University, Mt. Pleasant, MI 48859, USA.
| | - Douglas Swanson
- Department of Chemistry & Biochemistry, Central Michigan University, Mt. Pleasant, MI 48859, USA.
| | - Gary L Dunbar
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI 48859, USA.
- Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI 48859, USA.
- Department of Psychology, Central Michigan University, Mt. Pleasant, MI 48859, USA.
- Field Neurosciences Institute, St. Mary's of Michigan, Saginaw, MI 48604, USA.
| | - Julien Rossignol
- College of Medicine, Central Michigan University, Mt. Pleasant, MI 48859, USA.
- Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, Mt. Pleasant, MI 48859, USA.
- Program in Neuroscience, Central Michigan University, Mt. Pleasant, MI 48859, USA.
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14
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Su Y, Quan X, Li L, Zhou J. Computer Simulation of DNA Condensation by PAMAM Dendrimer. MACROMOL THEOR SIMUL 2018. [DOI: 10.1002/mats.201700070] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Yunxiang Su
- School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510460 China
| | - Xuebo Quan
- School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510460 China
| | - Libo Li
- School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510460 China
| | - Jian Zhou
- School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510460 China
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15
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PAMAM Dendrimers Cross the Blood-Brain Barrier When Administered through the Carotid Artery in C57BL/6J Mice. Int J Mol Sci 2017; 18:ijms18030628. [PMID: 28335421 PMCID: PMC5372641 DOI: 10.3390/ijms18030628] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 03/10/2017] [Accepted: 03/10/2017] [Indexed: 01/29/2023] Open
Abstract
Drug delivery into the central nervous system (CNS) is challenging due to the blood–brain barrier (BBB) and drug delivery into the brain overcoming the BBB can be achieved using nanoparticles such as dendrimers. The conventional cationic dendrimers used are highly toxic. Therefore, the present study investigates the role of novel mixed surface dendrimers, which have potentially less toxicity and can cross the BBB when administered through the carotid artery in mice. In vitro experiments investigated the uptake of amine dendrimers (G1-NH2 and G4-NH2) and novel dendrimers (G1-90/10 and G4-90/10) by primary cortical cultures. In vivo experiments involved transplantation of G4-90/10 into mice through (1) invasive intracranial injections into the striatum; and (2) less invasive carotid injections. The animals were sacrificed 24-h and 1-week post-transplantations and their brains were analyzed. In vivo experiments proved that the G4-90/10 can cross the BBB when injected through the carotid artery and localize within neurons and glial cells. The dendrimers were found to migrate through the corpus callosum 1-week post intracranial injection. Immunohistochemistry showed that the migrating cells are the dendrimer-infected glial cells. Overall, our results suggest that poly-amidoamine (PAMAM) dendrimers may be used as a minimally invasive means to deliver biomolecules for treating neurological diseases or disorders
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16
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Márquez-Miranda V, Abrigo J, Rivera JC, Araya-Durán I, Aravena J, Simon F, Pacheco N, González-Nilo FD, Cabello-Verrugio C. The complex of PAMAM-OH dendrimer with Angiotensin (1-7) prevented the disuse-induced skeletal muscle atrophy in mice. Int J Nanomedicine 2017; 12:1985-1999. [PMID: 28331320 PMCID: PMC5357082 DOI: 10.2147/ijn.s125521] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Angiotensin (1–7) (Ang-(1–7)) is a bioactive heptapeptide with a short half-life and has beneficial effects in several tissues – among them, skeletal muscle – by preventing muscle atrophy. Dendrimers are promising vehicles for the protection and transport of numerous bioactive molecules. This work explored the use of a neutral, non-cytotoxic hydroxyl-terminated poly(amidoamine) (PAMAM-OH) dendrimer as an Ang-(1–7) carrier. Bioinformatics analysis showed that the Ang-(1–7)-binding capacity of the dendrimer presented a 2:1 molar ratio. Molecular dynamics simulation analysis revealed the capacity of neutral PAMAM-OH to protect Ang-(1–7) and form stable complexes. The peptide coverage ability of the dendrimer was between ~50% and 65%. Furthermore, an electrophoretic mobility shift assay demonstrated that neutral PAMAM-OH effectively bonded peptides. Experimental results showed that the Ang-(1–7)/PAMAM-OH complex, but not Ang-(1–7) alone, had an anti-atrophic effect when administered intraperitoneally, as evaluated by muscle strength, fiber diameter, myofibrillar protein levels, and atrogin-1 and MuRF-1 expressions. The results of the Ang-(1–7)/PAMAM-OH complex being intraperitoneally injected were similar to the results obtained when Ang-(1–7) was systemically administered through mini-osmotic pumps. Together, the results suggest that Ang-(1–7) can be protected for PAMAM-OH when this complex is intraperitoneally injected. Therefore, the Ang-(1–7)/PAMAM-OH complex is an efficient delivery method for Ang-(1–7), since it improves the anti-atrophic activity of this peptide in skeletal muscle.
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Affiliation(s)
- Valeria Márquez-Miranda
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago; Fundación Fraunhofer Chile Research, Las Condes
| | - Johanna Abrigo
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Juan Carlos Rivera
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Ingrid Araya-Durán
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago
| | - Javier Aravena
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Felipe Simon
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
| | - Nicolás Pacheco
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago
| | - Fernando Danilo González-Nilo
- Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago; Fundación Fraunhofer Chile Research, Las Condes; Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Claudio Cabello-Verrugio
- Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas & Facultad de Medicina, Universidad Andres Bello; Millennium Institute on Immunology and Immunotherapy, Santiago
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17
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Kaufman EA, Tarallo R, Falanga A, Galdiero S, Weck M. Generation effect of Newkome dendrimers on cellular uptake. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Parboosing R, Chonco L, de la Mata FJ, Govender T, Maguire GE, Kruger HG. Potential inhibition of HIV-1 encapsidation by oligoribonucleotide-dendrimer nanoparticle complexes. Int J Nanomedicine 2017; 12:317-325. [PMID: 28115849 PMCID: PMC5221794 DOI: 10.2147/ijn.s114446] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Background Encapsidation, the process during which the genomic RNA of HIV is packaged into viral particles, is an attractive target for antiviral therapy. This study explores a novel nanotechnology-based strategy to inhibit HIV encapsidation by an RNA decoy mechanism. The design of the 16-mer oligoribonucleotide (RNA) decoy is based on the sequence of stem loop 3 (SL3) of the HIV packaging signal (Ψ). Recognition of the packaging signal is essential to the encapsidation process. It is theorized that the decoy RNA, by mimicking the packaging signal, will disrupt HIV packaging if efficiently delivered into lymphocytes by complexation with a carbosilane dendrimer. The aim of the study is to measure the uptake, toxicity, and antiviral activity of the dendrimer–RNA nanocomplex. Materials and methods A dendriplex was formed between cationic carbosilane dendrimers and the RNA decoy. Uptake of the fluorescein-labeled RNA into MT4 lymphocytes was determined by flow cytometry and confocal microscopy. The cytoprotective effect (50% effective concentration [EC50]) and the effect on HIV replication were determined in vitro by the methylthiazolyldiphenyl-tetrazolium bromide (MTT) assay and viral load measurements, respectively. Results Flow cytometry and confocal imaging demonstrated efficient transfection of lymphocytes. The dendriplex containing the Ψ decoy showed some activity (EC50 =3.20 µM, selectivity index =8.4). However, there was no significant suppression of HIV viral load. Conclusion Oligoribonucleotide decoys containing SL3 of the packaging sequence are efficiently delivered into lymphocytes by carbosilane dendrimers where they exhibit a modest cytoprotective effect against HIV infection.
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Affiliation(s)
- Raveen Parboosing
- Department of Virology, University of KwaZulu-Natal; National Health Laboratory Service, Durban, South Africa
| | - Louis Chonco
- Department of Virology, University of KwaZulu-Natal; National Health Laboratory Service, Durban, South Africa
| | - Francisco Javier de la Mata
- Organic and Inorganic Chemistry Department, University of Alcalá, Alcalá de Henares; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Thavendran Govender
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
| | - Glenn Em Maguire
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
| | - Hendrik G Kruger
- Catalysis and Peptide Research Unit, University of KwaZulu-Natal, Durban, South Africa
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19
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Sepúlveda-Crespo D, Vacas-Córdoba E, Márquez-Miranda V, Araya-Durán I, Gómez R, Mata FJDL, González-Nilo FD, Muñoz-Fernández MÁ. Effect of Several HIV Antigens Simultaneously Loaded with G2-NN16 Carbosilane Dendrimer in the Cell Uptake and Functionality of Human Dendritic Cells. Bioconjug Chem 2016; 27:2844-2849. [DOI: 10.1021/acs.bioconjchem.6b00623] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Daniel Sepúlveda-Crespo
- Instituto
de Investigación Sanitaria Gregorio Marañón (IiSGM), Spanish HIV−HGM BioBank, Madrid 28007, Spain
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
| | - Enrique Vacas-Córdoba
- Instituto
de Investigación Sanitaria Gregorio Marañón (IiSGM), Spanish HIV−HGM BioBank, Madrid 28007, Spain
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
| | - Valeria Márquez-Miranda
- Center
for Bioinformatics and Integrative Biology (CBIB), Facultad de Biología, Universidad Andres Bello, Av. República 239, Santiago 8320000, Chile
- Fundación Fraunhofer Chile Research, Las
Condes 7550296, Chile
| | - Ingrid Araya-Durán
- Center
for Bioinformatics and Integrative Biology (CBIB), Facultad de Biología, Universidad Andres Bello, Av. República 239, Santiago 8320000, Chile
- Fundación Fraunhofer Chile Research, Las
Condes 7550296, Chile
| | - Rafael Gómez
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
- Departamento
Química Orgánica y Química Inorgánica, Universidad de Alcalá Henares, Campus Universitario, Alcalá de Henares 28805, Spain
| | - Francisco Javier de la Mata
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
- Departamento
Química Orgánica y Química Inorgánica, Universidad de Alcalá Henares, Campus Universitario, Alcalá de Henares 28805, Spain
| | - Fernando Danilo González-Nilo
- Center
for Bioinformatics and Integrative Biology (CBIB), Facultad de Biología, Universidad Andres Bello, Av. República 239, Santiago 8320000, Chile
- Fundación Fraunhofer Chile Research, Las
Condes 7550296, Chile
- Centro
Interdisciplinario de Neurociencia de Valparaíso, Facultad
de Ciencias, Universidad de Valparaíso, Valparaíso 8370071, Chile
| | - M Ángeles Muñoz-Fernández
- Instituto
de Investigación Sanitaria Gregorio Marañón (IiSGM), Spanish HIV−HGM BioBank, Madrid 28007, Spain
- Networking Research Center on Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Madrid 28029, Spain
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20
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Hegarty JP, Krzeminski J, Sharma AK, Guzman-Villanueva D, Weissig V, Stewart DB. Bolaamphiphile-based nanocomplex delivery of phosphorothioate gapmer antisense oligonucleotides as a treatment for Clostridium difficile. Int J Nanomedicine 2016; 11:3607-19. [PMID: 27536102 PMCID: PMC4975145 DOI: 10.2147/ijn.s109600] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Despite being a conceptually appealing alternative to conventional antibiotics, a major challenge toward the successful implementation of antisense treatments for bacterial infections is the development of efficient oligonucleotide delivery systems. Cationic vesicles (bolasomes) composed of dequalinium chloride ("DQAsomes") have been used to deliver plasmid DNA across the cardiolipin-rich inner membrane of mitochondria. As cardiolipin is also a component of many bacterial membranes, we investigated the application of cationic bolasomes to bacteria as an oligonucleotide delivery system. Antisense sequences designed in silico to target the expression of essential genes of the bacterial pathogen, Clostridium difficile, were synthesized as 2'-O-methyl phosphorothioate gapmer antisense oligonucleotides (ASO). These antisense gapmers were quantitatively assessed for their ability to block mRNA translation using luciferase reporter and C. difficile protein expression plasmid constructs in a coupled transcription-translation system. Cationic bolaamphiphile compounds (dequalinium derivatives) of varying alkyl chain length were synthesized and bolasomes were prepared via probe sonication of an aqueous suspension. Bolasomes were characterized by particle size distribution, zeta potential, and binding capacities for anionic oligonucleotide. Bolasomes and antisense gapmers were combined to form antisense nanocomplexes. Anaerobic C. difficile log phase cultures were treated with serial doses of gapmer nanocomplexes or equivalent amounts of empty bolasomes for 24 hours. Antisense gapmers for four gene targets achieved nanomolar minimum inhibitory concentrations for C. difficile, with the lowest values observed for oligonucleotides targeting polymerase genes rpoB and dnaE. No inhibition of bacterial growth was observed from treatments at matched dosages of scrambled gapmer nanocomplexes or plain, oligonucleotide-free bolasomes compared to untreated control cultures. We describe the novel application of cationic bolasomes to deliver ASOs into bacteria. We also report the first successful in vitro antisense treatment to inhibit the growth of C. difficile.
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Affiliation(s)
- John P Hegarty
- Deparment of Surgery, Pennsylvania State University College of Medicine Hershey, PA, USA
| | - Jacek Krzeminski
- Department of Pharmacology, Penn State Hershey Cancer Institute, Hershey, PA, USA
| | - Arun K Sharma
- Department of Pharmacology, Penn State Hershey Cancer Institute, Hershey, PA, USA
| | - Diana Guzman-Villanueva
- Department of Pharmaceutical Sciences, College of Pharmacy, Nanomedicine Center of Excellence in Translational Research, Midwestern University, Glendale, AZ, USA
| | - Volkmar Weissig
- Department of Pharmaceutical Sciences, College of Pharmacy, Nanomedicine Center of Excellence in Translational Research, Midwestern University, Glendale, AZ, USA
| | - David B Stewart
- Deparment of Surgery, Pennsylvania State University College of Medicine Hershey, PA, USA
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21
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Carreño A, Gacitúa M, Fuentes JA, Páez-Hernández D, Peñaloza JP, Otero C, Preite M, Molins E, Swords WB, Meyer GJ, Manríquez JM, Polanco R, Chávez I, Arratia-Pérez R. Fluorescence probes for prokaryotic and eukaryotic cells using Re(CO)3+complexes with an electron withdrawing ancillary ligand. NEW J CHEM 2016. [DOI: 10.1039/c6nj00905k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Re(CO)3+complexes with an ancillary ligand present an electron withdrawing effect suitable for cell imaging.
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