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Jara-Guajardo P, Morales-Zavala F, Bolaños K, Giralt E, Araya E, Acosta GA, Albericio F, Alvarez AR, Kogan MJ. Differential Detection of Amyloid Aggregates in Old Animals Using Gold Nanorods by Computerized Tomography: A Pharmacokinetic and Bioaccumulation Study. Int J Nanomedicine 2023; 18:8169-8185. [PMID: 38169997 PMCID: PMC10759924 DOI: 10.2147/ijn.s435472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024] Open
Abstract
Introduction The development of new materials and tools for radiology is key to the implementation of this diagnostic technique in clinics. In this work, we evaluated the differential accumulation of peptide-functionalized GNRs in a transgenic animal model (APPswe/PSENd1E9) of Alzheimer's disease (AD) by computed tomography (CT) and measured the pharmacokinetic parameters and bioaccumulation of the nanosystem. Methods The GNRs were functionalized with two peptides, Ang2 and D1, which conferred on them the properties of crossing the blood-brain barrier and binding to amyloid aggregates, respectively, thus making them a diagnostic tool with great potential for AD. The nanosystem was administered intravenously in APPswe/PSEN1dE9 model mice of 4-, 8- and 18-months of age, and the accumulation of gold nanoparticles was observed by computed tomography (CT). The gold accumulation and biodistribution were determined by atomic absorption. Results Our findings indicated that 18-month-old animals treated with our nanosystem (GNR-D1/Ang2) displayed noticeable differences in CT signals compared to those treated with a control nanosystem (GNR-Ang2). However, no such distinctions were observed in younger animals. This suggests that our nanosystem holds the potential to effectively detect AD pathology. Discussion These results support the future development of gold nanoparticle-based technology as a more effective and accessible alternative for the diagnosis of AD and represent a significant advance in the development of gold nanoparticle applications in disease diagnosis.
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Affiliation(s)
- Pedro Jara-Guajardo
- Departamento de Quimica Farmacologica y Toxicologica, Facultad de Ciencias Quimicas y Farmaceuticas, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Independencia, Santiago, Chile
| | - Francisco Morales-Zavala
- Departamento de Quimica Farmacologica y Toxicologica, Facultad de Ciencias Quimicas y Farmaceuticas, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Independencia, Santiago, Chile
| | - Karen Bolaños
- Departamento de Quimica Farmacologica y Toxicologica, Facultad de Ciencias Quimicas y Farmaceuticas, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Independencia, Santiago, Chile
- Center for Studies on Exercise, Metabolism and Cancer (CEMC), Laboratory of Cellular Communication, Program of Cell and Molecular Biology, Faculty of Medicine, Institute of Biomedical Sciences (ICBM), University of Chile, Santiago, Chile
| | - Ernest Giralt
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Inorganic and Organic Chemistry, University of Barcelona, Barcelona, Spain
| | - Eyleen Araya
- Advanced Center for Chronic Diseases (ACCDiS), Independencia, Santiago, Chile
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago, Chile
| | - Gerardo A Acosta
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine & Department of Organic Chemistry, University of Barcelona, Barcelona, Spain
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Barcelona, 08034, Spain
| | - Fernando Albericio
- Department of Inorganic and Organic Chemistry, University of Barcelona, Barcelona, Spain
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine & Department of Organic Chemistry, University of Barcelona, Barcelona, Spain
- School of Chemistry & Physics, University of KwaZulu-Natal, Durban, South Africa
| | - Alejandra R Alvarez
- Cell Signaling Laboratory, Department of Cellular and Molecular Biology, Biological Sciences Faculty, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Marcelo J Kogan
- Departamento de Quimica Farmacologica y Toxicologica, Facultad de Ciencias Quimicas y Farmaceuticas, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Independencia, Santiago, Chile
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2
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Cabrera P, Jara-Guajardo P, Oyarzún MP, Parra-Muñoz N, Campos A, Soler M, Álvarez A, Morales-Zavala F, Araya E, Minniti AN, Aldunate R, Kogan MJ. Surface enhanced fluorescence effect improves the in vivo detection of amyloid aggregates. Nanomedicine 2022; 44:102569. [PMID: 35595016 DOI: 10.1016/j.nano.2022.102569] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 05/04/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
The β-amyloid (Aβ) peptide is one of the key etiological agents in Alzheimer's disease (AD). The in vivo detection of Aβ species is challenging in all stages of the illness. Currently, the development of fluorescent probes allows the detection of Aβ in animal models in the near-infrared region (NIR). However, considering future applications in biomedicine, it is relevant to develop strategies to improve detection of amyloid aggregates using NIR probes. An innovative approach to increase the fluorescence signal of these fluorophores is the use of plasmonic gold nanoparticles (surface-enhanced fluorescence effect). In this work, we improved the detection of Aβ aggregates in C. elegans and mouse models of AD by co-administering functionalized gold nanorods (GNRs-PEG-D1) with the fluorescent probes CRANAD-2 or CRANAD-58, which bind selectively to different amyloid species (soluble and insoluble). This work shows that GNRs improve the detection of Aβ using NIR probes in vivo.
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Affiliation(s)
- Pablo Cabrera
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile
| | - Pedro Jara-Guajardo
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile
| | - María Paz Oyarzún
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile
| | - Nicole Parra-Muñoz
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Santiago 8370456, Chile
| | - Aldo Campos
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Santiago 8370456, Chile
| | - Mónica Soler
- Departamento de Ingeniería Química, Biotecnología y Materiales, Facultad de Ciencias Físicas y Matemáticas, Universidad de Chile, Beauchef 851, Santiago 8370456, Chile
| | - Alejandra Álvarez
- Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O´Higgins 340, Santiago 8331150, Chile; Cell Signaling Laboratory, Department of Cellular and Molecular Biology, Center for Aging and Regeneration (CARE), Millennium Institute on Immunology and Immunotherapy, Biological Sciences Faculty, Pontificia Universidad Catolica de Chile, Santiago 8380494, Chile
| | - Francisco Morales-Zavala
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile; Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Camino La Piramide 5750, Huechuraba, Chile
| | - Eyleen Araya
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. Republica 275, Santiago, Chile
| | - Alicia N Minniti
- Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Av. Libertador Bernardo O´Higgins 340, Santiago 8331150, Chile
| | - Rebeca Aldunate
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Santo Tomás, Ejercito 146, Santiago, Chile.
| | - Marcelo J Kogan
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago 8380494, Chile.
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Salas-Huenuleo E, Hernández A, Lobos-González L, Polakovičová I, Morales-Zavala F, Araya E, Celis F, Romero C, Kogan MJ. Peptide Targeted Gold Nanoplatform Carrying miR-145 Induces Antitumoral Effects in Ovarian Cancer Cells. Pharmaceutics 2022; 14:958. [PMID: 35631544 PMCID: PMC9144804 DOI: 10.3390/pharmaceutics14050958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Revised: 04/18/2022] [Accepted: 04/21/2022] [Indexed: 02/04/2023] Open
Abstract
One of the recent attractive therapeutic approaches for cancer treatment is restoring downregulated microRNAs. They play an essential muti-regulatory role in cellular processes such as proliferation, differentiation, survival, apoptosis, cell cycle, angiogenesis, and metastasis, among others. In this study, a gold nanoplatform (GNPF) carrying miR-145, a downregulated microRNA in many cancer types, including epithelial ovarian cancer, was designed and synthesized. For targeting purposes, the GNPF was functionalized with the FSH33 peptide, which provided selectivity for ovarian cancer, and loaded with the miR-145 to obtain the nanosystem GNPF-miR-145. The GNPF-mir-145 was selectively incorporated in A2780 and SKOV3 cells and significantly inhibited cell viability and migration and exhibited proliferative and anchor-independent growth capacities. Moreover, it diminished VEGF release and reduced the spheroid size of ovarian cancer through the damage of cell membranes, thus decreasing cell viability and possibly activating apoptosis. These results provide important advances in developing miR-based therapies using nanoparticles as selective vectors and provide approaches for in vivo evaluation.
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Affiliation(s)
- Edison Salas-Huenuleo
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380000, Chile; (E.S.-H.); (F.M.-Z.)
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile & Pontificia Universidad Católica de Chile, Santiago 7820436, Chile; (L.L.-G.); (I.P.)
- Advanced Integrated Technologies (AINTECH), Chorrillo Uno, Parcela 21, Lampa, Santiago 9380000, Chile
| | - Andrea Hernández
- Laboratory of Endocrinology and Reproduction Biology, Clinical Hospital, Universidad de Chile, Santiago 7820436, Chile;
| | - Lorena Lobos-González
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile & Pontificia Universidad Católica de Chile, Santiago 7820436, Chile; (L.L.-G.); (I.P.)
- Centro de Medicina Regenerativa, Facultad de Medicina, Universidad Del Desarrollo, Santiago 7610658, Chile
| | - Iva Polakovičová
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile & Pontificia Universidad Católica de Chile, Santiago 7820436, Chile; (L.L.-G.); (I.P.)
- Department of Hematology-Oncology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile
| | - Francisco Morales-Zavala
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380000, Chile; (E.S.-H.); (F.M.-Z.)
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile & Pontificia Universidad Católica de Chile, Santiago 7820436, Chile; (L.L.-G.); (I.P.)
- Centro de Nanotecnología Aplicada, Facultad de Ciencias, Universidad Mayor, Temuco 4801043, Chile
| | - Eyleen Araya
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Santiago 8370146, Chile;
| | - Freddy Celis
- Laboratorio de Procesos Fotónicos y Electroquímicos, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso 2360002, Chile;
| | - Carmen Romero
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile & Pontificia Universidad Católica de Chile, Santiago 7820436, Chile; (L.L.-G.); (I.P.)
- Laboratory of Endocrinology and Reproduction Biology, Clinical Hospital, Universidad de Chile, Santiago 7820436, Chile;
| | - Marcelo J. Kogan
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380000, Chile; (E.S.-H.); (F.M.-Z.)
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile & Pontificia Universidad Católica de Chile, Santiago 7820436, Chile; (L.L.-G.); (I.P.)
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Morales-Zavala F, Jara-Guajardo P, Chamorro D, Riveros AL, Chandia-Cristi A, Salgado N, Pismante P, Giralt E, Sánchez-Navarro M, Araya E, Vasquez R, Acosta G, Albericio F, Alvarez R A, Kogan MJ. In vivo micro computed tomography detection and decrease in amyloid load by using multifunctionalized gold nanorods: a neurotheranostic platform for Alzheimer's disease. Biomater Sci 2021; 9:4178-4190. [PMID: 33982040 DOI: 10.1039/d0bm01825b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The development and use of nanosystems is an emerging strategy for the diagnosis and treatment of a broad number of diseases, such as Alzheimer's disease (AD). Here, we developed a neurotheranostic nanosystem based on gold nanorods (GNRs) that works as a therapeutic peptide delivery system and can be detected in vivo for microcomputed tomography (micro-CT), being a diagnostic tool. GNRs functionalized with the peptides Ang2 (a shuttle to the Central Nervous System) and D1 (that binds to the Aβ peptide, also inhibiting its aggregation) allowed detecting differences in vivo between wild type and AD mice (APPswe/PSEN1dE9) 15 minutes after a single dose by micro-CT. Moreover, after a recurrent treatment for one month with GNRs-D1/Ang2, we observed a diminution of amyloid load and inflammatory markers in the brain. Thus, this new designed nanosystem exhibits promising properties for neurotheranostics of AD.
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Affiliation(s)
- Francisco Morales-Zavala
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile.
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5
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Bejarano J, Navarro-Marquez M, Morales-Zavala F, Morales JO, Garcia-Carvajal I, Araya-Fuentes E, Flores Y, Verdejo HE, Castro PF, Lavandero S, Kogan MJ. Nanoparticles for diagnosis and therapy of atherosclerosis and myocardial infarction: evolution toward prospective theranostic approaches. Theranostics 2018; 8:4710-4732. [PMID: 30279733 PMCID: PMC6160774 DOI: 10.7150/thno.26284] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Accepted: 06/29/2018] [Indexed: 12/22/2022] Open
Abstract
Cardiovascular diseases are the leading cause of death worldwide. Despite preventive efforts, early detection of atherosclerosis, the common pathophysiological mechanism underlying cardiovascular diseases remains elusive, and overt coronary artery disease or myocardial infarction is often the first clinical manifestation. Nanoparticles represent a novel strategy for prevention, diagnosis, and treatment of atherosclerosis, and new multifunctional nanoparticles with combined diagnostic and therapeutic capacities hold the promise for theranostic approaches to this disease. This review focuses on the development of nanosystems for therapy and diagnosis of subclinical atherosclerosis, coronary artery disease, and myocardial infarction and the evolution of nanosystems as theranostic tools. We also discuss the use of nanoparticles in noninvasive imaging, targeted drug delivery, photothermal therapies together with the challenges faced by nanosystems during clinical translation.
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Affiliation(s)
- Julian Bejarano
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Mario Navarro-Marquez
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Francisco Morales-Zavala
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Javier O. Morales
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
- Departamento de Ciencias y Tecnología Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago 8380494, Chile
- Pharmaceutical Biomaterial Research Group, Department of Health Sciences, Luleå University of Technology, Luleå 97187, Sweden
| | - Ivonne Garcia-Carvajal
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Eyleen Araya-Fuentes
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Republica 275, 8370146, Santiago, Chile
| | - Yvo Flores
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
| | - Hugo E. Verdejo
- Advanced Center for Chronic Diseases (ACCDiS), División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo F. Castro
- Advanced Center for Chronic Diseases (ACCDiS), División de Enfermedades Cardiovasculares, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Sergio Lavandero
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
- Advanced Center for Chronic Diseases (ACCDiS), & Centro de Estudios en Ejercicio, Metabolismo y Cáncer (CEMC), Instituto de Ciencias Biomedicas (ICBM), Facultad de Medicina, Universidad de Chile, Santiago 8380492, Chile
- Department of Internal Medicine (Cardiology Division), University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Marcelo J. Kogan
- Advanced Center for Chronic Diseases (ACCDiS), Facultad Ciencias Químicas y Farmaceuticas, Universidad de Chile, Santiago 8380492, Chile
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile
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Morales-Zavala F, Casanova-Morales N, Gonzalez RB, Chandía-Cristi A, Estrada LD, Alvizú I, Waselowski V, Guzman F, Guerrero S, Oyarzún-Olave M, Rebolledo C, Rodriguez E, Armijo J, Bhuyan H, Favre M, Alvarez AR, Kogan MJ, Maze JR. Functionalization of stable fluorescent nanodiamonds towards reliable detection of biomarkers for Alzheimer's disease. J Nanobiotechnology 2018; 16:60. [PMID: 30097010 PMCID: PMC6085760 DOI: 10.1186/s12951-018-0385-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 07/20/2018] [Indexed: 01/01/2023] Open
Abstract
Background Stable and non-toxic fluorescent markers are gaining attention in molecular diagnostics as powerful tools for enabling long and reliable biological studies. Such markers should not only have a long half-life under several assay conditions showing no photo bleaching or blinking but also, they must allow for their conjugation or functionalization as a crucial step for numerous applications such as cellular tracking, biomarker detection and drug delivery. Results We report the functionalization of stable fluorescent markers based on nanodiamonds (NDs) with a bifunctional peptide. This peptide is made of a cell penetrating peptide and a six amino acids long β-sheet breaker peptide that is able to recognize amyloid β (Aβ) aggregates, a biomarker for the Alzheimer disease. Our results indicate that functionalized NDs (fNDs) are not cytotoxic and can be internalized by the cells. The fNDs allow ultrasensitive detection (at picomolar concentrations of NDs) of in vitro amyloid fibrils and amyloid aggregates in AD mice brains. Conclusions The fluorescence of functionalized NDs is more stable than that of fluorescent markers commonly used to
stain Aβ aggregates such as Thioflavin T. These results pave the way for performing ultrasensitive and reliable detection of Aβ aggregates involved in the pathogenesis of the Alzheimer disease. Electronic supplementary material The online version of this article (10.1186/s12951-018-0385-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Francisco Morales-Zavala
- Department of Pharmacological and Toxicological Chemistry, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
| | | | - Raúl B Gonzalez
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile
| | - América Chandía-Cristi
- Department of Cellular & Molecular Biology, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Ignacio Alvizú
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile
| | - Victor Waselowski
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile
| | - Fanny Guzman
- Núcleo de Biotecnología Curauma, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile
| | - Simón Guerrero
- Department of Pharmacological and Toxicological Chemistry, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
| | - Marisol Oyarzún-Olave
- Department of Cellular & Molecular Biology, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Cristian Rebolledo
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile
| | - Enrique Rodriguez
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile
| | - Julien Armijo
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile.,Centro de Investigación en Recursos Naturales y Sustentabilidad, Universidad Bernardo O'Higgins, Santiago, Chile
| | - Heman Bhuyan
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile
| | - Mario Favre
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile
| | - Alejandra R Alvarez
- Department of Cellular & Molecular Biology, Pontificia Universidad Católica de Chile, Santiago, Chile. .,Center for Nanoscale Technology and Advanced Materials, Pontificia Universidad Catolica de Chile, Santiago, Chile. .,CARE-Chile-UC, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Marcelo J Kogan
- Department of Pharmacological and Toxicological Chemistry, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile. .,Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile.
| | - Jerónimo R Maze
- Institute of Physics, Pontificia Universidad Católica de Chile, Santiago, 7820436, Chile. .,Center for Nanoscale Technology and Advanced Materials, Pontificia Universidad Catolica de Chile, Santiago, Chile.
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7
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Ruff J, Hassan N, Morales-Zavala F, Steitz J, Araya E, Kogan MJ, Simon U. CLPFFD-PEG functionalized NIR-absorbing hollow gold nanospheres and gold nanorods inhibit β-amyloid aggregation. J Mater Chem B 2018; 6:2432-2443. [PMID: 32254460 DOI: 10.1039/c8tb00655e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Gold nanoparticles with specific optical properties in combination with the CLPFFD peptide that exhibits selectivity for β-amyloid (Aβ) aggregates are promising photothermal absorbers for application in Alzheimer's disease therapy. We report on hollow gold nanospheres (HAuNS) and gold nanorods (AuNR), which exhibit strong plasmonic near infrared (NIR) absorbance in the optical window of biological tissue and which are functionalized with CLPFFD in two different ways. Therefore the peptide was either directly bound to the particle surface or indirectly to a particle-protecting polyethylene glycol (PEG) ligand shell, thereby reducing the CLPFFD density on the surfaces of both types of particles. Fully PEGylated particles were used for comparison. The effects on cell viability and the fundamental suitability of the HAuNS and AuNR conjugates as photothermal absorbers to inhibit Aβ-fibrillation are analysed in vitro. The positive influence of the use of PEG ligands on the reduced cytotoxicity of the conjugates and on the Aβ-disaggregation is discussed.
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Affiliation(s)
- J Ruff
- Institute of Inorganic Chemistry, RWTH Aachen University, Aachen, Germany.
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8
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Velasco-Aguirre C, Morales-Zavala F, Salas-Huenuleo E, Gallardo-Toledo E, Andonie O, Muñoz L, Rojas X, Acosta G, Sánchez-Navarro M, Giralt E, Araya E, Albericio F, Kogan MJ. Improving gold nanorod delivery to the central nervous system by conjugation to the shuttle Angiopep-2. Nanomedicine (Lond) 2017; 12:2503-2517. [PMID: 28882086 DOI: 10.2217/nnm-2017-0181] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
AIM To improve the in vivo delivery of gold nanorods (GNRs) to the central nervous system of rats, these gold nanoparticles were conjugated to Angiopep-2, a shuttle peptide that can cross the blood-brain barrier. MATERIALS & METHODS GNRs were synthesized and modified using polyethylene glycol and Angiopep-2 (GNR-PEG-Angiopep-2). The physicochemical properties, in vitro cytotoxicity and ex vivo biodistribution of the conjugate were examined. RESULTS GNR-PEG-Angiopep-2 was stable over the following days, and the different concentrations that were tested did not affect the viability of microvascular endothelial cells. The conjugation of Angiopep-2 to GNRs enhanced the endocytosis of these particles (in vitro) and the accumulation in brains (in vivo), when compared with GNRs modified only with PEG. CONCLUSION This study provides evidence that Angiopep-2 improves the delivery of GNRs to the brain parenchyma. This property is highly relevant for future applications of GNRs as platforms for photothermal and theranostic purposes.
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Affiliation(s)
- Carolina Velasco-Aguirre
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
| | - Francisco Morales-Zavala
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
| | - Edison Salas-Huenuleo
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
| | - Eduardo Gallardo-Toledo
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
| | - Oscar Andonie
- Sección Metrologia Química, Comisión Chilena de Energía Nuclear, CCHEN, Nueva Bilbao 12501, La Reina, Santiago, Chile
| | - Luis Muñoz
- Sección Metrologia Química, Comisión Chilena de Energía Nuclear, CCHEN, Nueva Bilbao 12501, La Reina, Santiago, Chile
| | - Ximena Rojas
- Sección Metrologia Química, Comisión Chilena de Energía Nuclear, CCHEN, Nueva Bilbao 12501, La Reina, Santiago, Chile
| | - Gerardo Acosta
- Department of Inorganic & Organic Chemistry, University of Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain.,CIBER-BBN, Networking Centre on Bioengineering, Biomaterials & Nanomedicine, Barcelona Science Park, 08028 Barcelona, Spain
| | - Macarena Sánchez-Navarro
- Institute for Research in Biomedicine (IRB Barcelona) Barcelona Institute of Science & Technology, Baldiri Reixac 10, 08028 Barcelona (Spain)
| | - Ernest Giralt
- Department of Inorganic & Organic Chemistry, University of Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain.,Institute for Research in Biomedicine (IRB Barcelona) Barcelona Institute of Science & Technology, Baldiri Reixac 10, 08028 Barcelona (Spain)
| | - Eyleen Araya
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Republica 275, 8370146 Santiago, Chile
| | - Fernando Albericio
- Department of Inorganic & Organic Chemistry, University of Barcelona, Martí i Franquès 1, 08028 Barcelona, Spain.,CIBER-BBN, Networking Centre on Bioengineering, Biomaterials & Nanomedicine, Barcelona Science Park, 08028 Barcelona, Spain.,School of Chemistry & Physics, University of KwaZulu-Natal, Durban 4001, South Africa
| | - Marcelo Javier Kogan
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Advanced Center for Chronic Diseases (ACCDiS), Santiago, Chile
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9
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Morales-Zavala F, Arriagada H, Hassan N, Velasco C, Riveros A, Álvarez AR, Minniti AN, Rojas-Silva X, Muñoz LL, Vasquez R, Rodriguez K, Sanchez-Navarro M, Giralt E, Araya E, Aldunate R, Kogan MJ. Peptide multifunctionalized gold nanorods decrease toxicity of β-amyloid peptide in a Caenorhabditis elegans model of Alzheimer's disease. Nanomedicine 2017; 13:2341-2350. [PMID: 28673851 DOI: 10.1016/j.nano.2017.06.013] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Revised: 06/01/2017] [Accepted: 06/26/2017] [Indexed: 12/01/2022]
Abstract
The properties of nanometric materials make nanotechnology a promising platform for tackling problems of contemporary medicine. In this work, gold nanorods were synthetized and stabilized with polyethylene glycols and modified with two kinds of peptides. The D1 peptide that recognizes toxic aggregates of Aβ, a peptide involved in Alzheimer's disease (AD); and the Angiopep 2 that can be used to deliver nanorods to the mammalian central nervous system. The nanoconjugates were characterized using absorption spectrophotometry, dynamic light scattering, and transmission electron microscopy, among other techniques. We determined that the nanoconjugate does not affect neuronal viability; it penetrates the cells, and decreases aggregation of Aβ peptide in vitro. We also showed that when we apply our nanosystem to a Caenorhabditis elegans AD model, the toxicity of aggregated Aβ peptide is decreased. This work may contribute to the development of therapies for AD based on metallic nanoparticles.
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Affiliation(s)
- Francisco Morales-Zavala
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago, Chile.
| | - Hector Arriagada
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Santo Tomás, Ejercito 146, Santiago, Chile.
| | - Natalia Hassan
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago; Programa Institucional de Fomento a la I+D+I, Universidad Tecnológica Metropolitana, Edificio de Ciencia y Tecnologia, Ignacio Valdivieso 2409, San Joaquin.
| | - Carolina Velasco
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago, Chile.
| | - Ana Riveros
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago, Chile.
| | - Alejandra R Álvarez
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago 8331010, Chile; Centro de envejecimiento y regeneración (CARE), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.
| | - Alicia N Minniti
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Alameda 340, Santiago 8331010, Chile.
| | - Ximena Rojas-Silva
- Sección de Metrología Química, Comisión Chilena de Energía Nuclear, Nueva Bilbao 12501, La Reina, Santiago, Chile.
| | - Luis L Muñoz
- Sección de Metrología Química, Comisión Chilena de Energía Nuclear, Nueva Bilbao 12501, La Reina, Santiago, Chile.
| | - Rodrigo Vasquez
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago, Chile; Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. Republica 275, Santiago, Chile.
| | - Katherine Rodriguez
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. Republica 275, Santiago, Chile.
| | - Macarena Sanchez-Navarro
- Institute for Research in Biomedicine-Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain.
| | - Ernest Giralt
- Institute for Research in Biomedicine-Barcelona Institute of Science and Technology, Baldiri Reixac 10, 08028 Barcelona, Spain.
| | - Eyleen Araya
- Departamento de Ciencias Quimicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. Republica 275, Santiago, Chile.
| | - Rebeca Aldunate
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Santo Tomás, Ejercito 146, Santiago, Chile.
| | - Marcelo J Kogan
- Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago; Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, Santiago, Chile.
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