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Biber Muftuler FZ. A perspective on PLGA encapsulated radio agents. J Radioanal Nucl Chem 2023. [DOI: 10.1007/s10967-023-08798-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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Wu S, Helal-Neto E, Matos APDS, Jafari A, Kozempel J, Silva YJDA, Serrano-Larrea C, Alves Junior S, Ricci-Junior E, Alexis F, Santos-Oliveira R. Radioactive polymeric nanoparticles for biomedical application. Drug Deliv 2021; 27:1544-1561. [PMID: 33118416 PMCID: PMC7599028 DOI: 10.1080/10717544.2020.1837296] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Nowadays, emerging radiolabeled nanosystems are revolutionizing medicine in terms of diagnostics, treatment, and theranostics. These radionuclides include polymeric nanoparticles (NPs), liposomal carriers, dendrimers, magnetic iron oxide NPs, silica NPs, carbon nanotubes, and inorganic metal-based nanoformulations. Between these nano-platforms, polymeric NPs have gained attention in the biomedical field due to their excellent properties, such as their surface to mass ratio, quantum properties, biodegradability, low toxicity, and ability to absorb and carry other molecules. In addition, NPs are capable of carrying high payloads of radionuclides which can be used for diagnostic, treatment, and theranostics depending on the radioactive material linked. The radiolabeling process of nanoparticles can be performed by direct or indirect labeling process. In both cases, the most appropriate must be selected in order to keep the targeting properties as preserved as possible. In addition, radionuclide therapy has the advantage of delivering a highly concentrated absorbed dose to the targeted tissue while sparing the surrounding healthy tissues. Said another way, radioactive polymeric NPs represent a promising prospect in the treatment and diagnostics of cardiovascular diseases such as cardiac ischemia, infectious diseases such as tuberculosis, and other type of cancer cells or tumors.
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Affiliation(s)
- Shentian Wu
- Department of Radiotherapy Center, Maoming People's Hospital, Maoming City, China
| | - Edward Helal-Neto
- Nuclear Engineering Institute, Brazilian Nuclear Energy Commission, Rio de Janeiro, Brazil
| | | | - Amir Jafari
- Nuclear Engineering Institute, Brazilian Nuclear Energy Commission, Rio de Janeiro, Brazil.,Department of Medical Nanotechnology in the Faculty of Advanced Technology in Medicine, Iran University of Medical Science, Tehran, Iran
| | - Ján Kozempel
- Faculty of Nuclear Sciences and Physical Engineering (FJFI), Czech Technical University in Prague (ČVUT), Prague, Czech Republic
| | | | | | - Severino Alves Junior
- Department of Fundamental Chemistry, Federal University of Pernambuco, Recife, Brazil
| | - Eduardo Ricci-Junior
- Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Frank Alexis
- School of Biological Sciences and Engineering, Yachay Tech University, Urcuquí, Ecuador
| | - Ralph Santos-Oliveira
- Nuclear Engineering Institute, Brazilian Nuclear Energy Commission, Rio de Janeiro, Brazil.,Laboratory of Radiopharmacy and Nanoradiopharmaceuticals, Zona Oeste State University, Rio de Janeiro, Brazil
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Aranda-Lara L, García BEO, Isaac-Olivé K, Ferro-Flores G, Meléndez-Alafort L, Morales-Avila E. Drug Delivery Systems-Based Dendrimers and Polymer Micelles for Nuclear Diagnosis and Therapy. Macromol Biosci 2021; 21:e2000362. [PMID: 33458936 DOI: 10.1002/mabi.202000362] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 12/02/2020] [Indexed: 12/23/2022]
Abstract
Polymeric nanoparticles encompass micelles and dendrimers. They are used for improving or controlling the action of the loaded therapy or imaging agent, including radionuclides. Some radionuclides possess properties appropriate for simultaneous imaging and therapy of a disease and are therefore called theranostic. The diversity in core materials and surface modification, as well as radiolabeling strategies, offers multiples possibilities for preparing polymeric nanoparticles using radionuclides. The present review describes different strategies in the preparation of such nanoparticles and their applications in nuclear nanomedicine.
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Affiliation(s)
- Liliana Aranda-Lara
- Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan S/N, Toluca, Estado de México, 50180, Mexico
| | - Blanca Eli Ocampo García
- Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca S/N, Ocoyoacac, Estado de México, 52750, Mexico
| | - Keila Isaac-Olivé
- Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan S/N, Toluca, Estado de México, 50180, Mexico
| | - Guillermina Ferro-Flores
- Instituto Nacional de Investigaciones Nucleares, Carretera México-Toluca S/N, Ocoyoacac, Estado de México, 52750, Mexico
| | | | - Enrique Morales-Avila
- Facultad de Química, Universidad Autónoma del Estado de México, Paseo Tollocan S/N, Toluca, Estado de México, 50180, Mexico
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Kovacs L, Cabral P, Chammas R. Mannose receptor 1 expression does not determine the uptake of high-density mannose dendrimers by activated macrophages populations. PLoS One 2020; 15:e0240455. [PMID: 33048944 PMCID: PMC7553290 DOI: 10.1371/journal.pone.0240455] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 09/25/2020] [Indexed: 11/29/2022] Open
Abstract
The presence of a high number of macrophages within solid tumors is often significantly associated with poor prognosis and predict treatment failure for chemotherapy and radiotherapy. Macrophages are innate immune cells capable of performing diverse functions depending on the different signals from the microenvironment. The classically activated macrophage is commonly present during the early stages of tumor development while alternatively activated macrophages are associated with more advanced tumors. The distinction of the antitumoral macrophages from the pro-tumoral macrophages is not absolute. However, they have different cell surface markers such as mannose receptor (MRC1 or CD206) abundantly expressed by macrophages treated with interleukin-4 (IL-4). The important roles of macrophages in cancers suggest that it is important to develop novel therapies that target these cells. In the present study, we designed a probe using Polyamidoamine (PAMAM) fifth-generation (G5) dendrimers conjugated with mannose, Cyanine 7 (Cy7), and hydrazinonicotinamide (HYNIC) for target macrophages with high expression of MRC1 in the tumor. The intracellular uptake of 99mTc-HYNIC-dendrimer-mannose-Cy7 through the interaction with MRC1 in bone marrow-derived macrophages (BMDMs) untreated or treated with lipopolysaccharides (LPS) + interferon (IFN)γ or IL-4 was analyzed. Our results show that high-density mannose dendrimers are preferentially bound by macrophages treated by IFNγ and LPS that express lower levels of MRC1 than for macrophages treated by IL-4 that express high levels of MRC1. Furthermore, the intracellular 99mTc-HYNIC-dendrimer-mannose-Cy7 uptake in BMDMs was not inhibited in the presence of free mannose or glucose. This result suggests that 99mTc-HYNIC-dendrimer-mannose-Cy7 is not internalized via macrophage MRC1. Based on these findings, we concluded that MRC1 expression does not determine the uptake of high-density mannose dendrimers.
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Affiliation(s)
- Luciana Kovacs
- Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Pablo Cabral
- Departamento de Radiofarmacia, Centro de Investigaciones Nucleares, Facultad de Ciencias Universidad de la República, Montevideo, Uruguay
| | - Roger Chammas
- Centro de Investigação Translacional em Oncologia, Instituto do Câncer do Estado de São Paulo, Faculdade de Medicina, Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Departamento de Radiologia e Oncologia da Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
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Reich D, Wurzer A, Wirtz M, Stiegler V, Spatz P, Pollmann J, Wester HJ, Notni J. Dendritic poly-chelator frameworks for multimeric bioconjugation. Chem Commun (Camb) 2018; 53:2586-2589. [PMID: 28191563 DOI: 10.1039/c6cc10169k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Starting from multifunctional triazacyclononane-triphosphinate chelator cores, dendritic molecules with the ability to bind metal ions within their framework were synthesized. A cooperative interaction of the chelator cages resulted in a markedly increased affinity towards 67/68GaIII. A hexameric PSMA inhibitor conjugate with high affinity (IC50 = 1.2 nM) and favorable in vivo PET imaging properties demonstrated practical applicability. The novel scaffolds are useful for synthesis of structurally well-defined multimodal imaging probes or theranostics.
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Affiliation(s)
- Dominik Reich
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Alexander Wurzer
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Martina Wirtz
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Veronika Stiegler
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Philipp Spatz
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Julia Pollmann
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Hans-Jürgen Wester
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
| | - Johannes Notni
- Lehrstuhl für Pharmazeutische Radiochemie, Technische Universität München, Walther-Meissner-Strasse 3, D-85748 Garching, Germany.
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Lepareur N, Leal E Costa L, Bocqué M, Blondelle C, Ruello C, Desjulets M, Noiret N, Cammas-Marion S. Development of Biocompatible and Functional Polymeric Nanoparticles for Site-Specific Delivery of Radionuclides. Front Med (Lausanne) 2015; 2:63. [PMID: 26389121 PMCID: PMC4559641 DOI: 10.3389/fmed.2015.00063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 08/21/2015] [Indexed: 01/13/2023] Open
Abstract
Introduction Encapsulation of biologically active molecules into nanoparticles (NPs), for site-specific delivery, is a fast growing area. These NPs must be biocompatible, non-toxic, and able to release their load in a controlled way. We have developed a series of NPs based on (bio)degradable and biocompatible poly(malic acid) derivatives, poly(benzyl malate) (PMLABe), with its PEG-grafted stealth analog and target-specific biotin-PEG-b-PMLABe one. A lipophilic radiotracer has then been encapsulated into these NPs. Methods Monomers were synthesized from dl-aspartic acid. PEG42-b-PMLABe73 and Biot-PEG66-b-PMLABe73 block copolymers were obtained by anionic ring-opening polymerization of benzyl malolactonate in presence of α-methoxy-ω-carboxy-PEG42 and α-biotin-ω-carboxy-PEG66 as initiators. NPs were prepared by nanoprecipitation. Size, polydispersity, and zeta potential were measured by dynamic light scattering (DLS) and zetametry. 99mTc-SSS was prepared as previously described. Encapsulation efficacy was assessed by varying different parameters, such as encapsulation with preformed NPs or during their formation, influence of the solvent, and of the method to prepare the NPs. After decay, 99mTc-loaded NPs were also analyzed by DLS and zetametry. NPs’ morphology was assessed by transmission electron microscopy. Results 99mTc-SSS was added during nanoprecipitation, using two different methods, to ensure good encapsulation. Radiolabeled NPs present increased diameters, with identical low polydispersity indexes and negative zeta potentials in comparison to non-radiolabeled NPs. Conclusion A radiotracer was successfully encapsulated, but some further optimization is still needed. The next step will be to modify these radiolabeled NPs with a hepatotrope peptide, and to replace 99mTc with 188Re for therapy. Our team is also working on drugs’ encapsulation and grafting of a fluorescent probe. Combining these modalities is of interest for combined chemo-/radiotherapy, bimodal imaging, and/or theranostic approach.
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Affiliation(s)
- Nicolas Lepareur
- Comprehensive Cancer Centre Eugene Marquis , Rennes , France ; INSERM UMR-S 991 , Rennes , France
| | - Loleh Leal E Costa
- Comprehensive Cancer Centre Eugene Marquis , Rennes , France ; Ecole Nationale Supérieure de Chimie de Rennes (ENSCR) , Rennes , France
| | - Maëva Bocqué
- Comprehensive Cancer Centre Eugene Marquis , Rennes , France ; Ecole Nationale Supérieure de Chimie de Rennes (ENSCR) , Rennes , France
| | - Clément Blondelle
- Comprehensive Cancer Centre Eugene Marquis , Rennes , France ; Ecole Nationale Supérieure de Chimie de Rennes (ENSCR) , Rennes , France
| | - Clément Ruello
- Comprehensive Cancer Centre Eugene Marquis , Rennes , France ; Ecole Nationale Supérieure de Chimie de Rennes (ENSCR) , Rennes , France
| | - Marie Desjulets
- Comprehensive Cancer Centre Eugene Marquis , Rennes , France
| | - Nicolas Noiret
- Ecole Nationale Supérieure de Chimie de Rennes (ENSCR) , Rennes , France ; UMR 6226 CNRS, Institute of Chemical Sciences of Rennes , Rennes , France
| | - Sandrine Cammas-Marion
- Ecole Nationale Supérieure de Chimie de Rennes (ENSCR) , Rennes , France ; UMR 6226 CNRS, Institute of Chemical Sciences of Rennes , Rennes , France
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Radiolabeling optimization and characterization of (68)Ga labeled DOTA-polyamido-amine dendrimer conjugate - Animal biodistribution and PET imaging results. Appl Radiat Isot 2015; 105:40-46. [PMID: 26232562 DOI: 10.1016/j.apradiso.2015.07.021] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Revised: 07/21/2015] [Accepted: 07/21/2015] [Indexed: 02/05/2023]
Abstract
The present study describes the optimization of (68)Ga radiolabeling with PAMAM dendrimer-DOTA conjugate. A conjugate (PAMAM-DOTA) concentration of 11.69µM, provided best radiolabeling efficiency of more than 93.0% at pH 4.0, incubation time of 30.0min and reaction temperature ranging between 90 and 100°C. The decay corrected radiochemical yield was found to be 79.4±0.01%. The radiolabeled preparation ([(68)Ga]-DOTA-PAMAM-D) remained stable (radiolabeling efficiency of 96.0%) at room temperature and in serum for up to 4-h. The plasma protein binding was observed to be 21.0%. After intravenous administration, 50.0% of the tracer cleared from the blood circulation by 30-min and less than 1.0% of the injected activity remained in blood by 1.0h. The animal biodistribution studies demonstrated that the tracer excretes through the kidneys and about 0.33% of the %ID/g accumulated in the tumor at 1h post injection. The animal organ's biodistribution data was supported by animal PET imaging showing good 'non-specific' tracer uptake in tumor and excretion is primarily through kidneys. Additionally, DOTA-PAMAM-D conjugation with αVβ3 receptors targeting peptides and drug loading on the dendrimers may improve the specificity of the (68)Ga labeled product for imaging and treating angiogenesis respectively.
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Abou DS, Pickett JE, Thorek DLJ. Nuclear molecular imaging with nanoparticles: radiochemistry, applications and translation. Br J Radiol 2015; 88:20150185. [PMID: 26133075 PMCID: PMC4730968 DOI: 10.1259/bjr.20150185] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Molecular imaging provides considerable insight into biological processes for greater understanding of health and disease. Numerous advances in medical physics, chemistry and biology have driven the growth of this field in the past two decades. With exquisite sensitivity, depth of detection and potential for theranostics, radioactive imaging approaches have played a major role in the emergence of molecular imaging. At the same time, developments in materials science, characterization and synthesis have led to explosive progress in the nanoparticle (NP) sciences. NPs are generally defined as particles with a diameter in the nanometre size range. Unique physical, chemical and biological properties arise at this scale, stimulating interest for applications as diverse as energy production and storage, chemical catalysis and electronics. In biomedicine, NPs have generated perhaps the greatest attention. These materials directly interface with life at the subcellular scale of nucleic acids, membranes and proteins. In this review, we will detail the advances made in combining radioactive imaging and NPs. First, we provide an overview of the NP platforms and their properties. This is followed by a look at methods for radiolabelling NPs with gamma-emitting radionuclides for use in single photon emission CT and planar scintigraphy. Next, utilization of positron-emitting radionuclides for positron emission tomography is considered. Finally, recent advances for multimodal nuclear imaging with NPs and efforts for clinical translation and ongoing trials are discussed.
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Affiliation(s)
- D S Abou
- 1 Division of Nuclear Medicine, Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - J E Pickett
- 1 Division of Nuclear Medicine, Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - D L J Thorek
- 1 Division of Nuclear Medicine, Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.,2 Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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