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Nunes AR, Costa EC, Alves G, Silva LR. Nanoformulations for the Delivery of Dietary Anthocyanins for the Prevention and Treatment of Diabetes Mellitus and Its Complications. Pharmaceuticals (Basel) 2023; 16:ph16050736. [PMID: 37242519 DOI: 10.3390/ph16050736] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/06/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Diabetes mellitus (DM) is a metabolic disease characterized by abnormal blood glucose levels-hyperglycemia, caused by a lack of insulin secretion, impaired insulin action, or a combination of both. The incidence of DM is increasing, resulting in billions of dollars in annual healthcare costs worldwide. Current therapeutics aim to control hyperglycemia and reduce blood glucose levels to normal. However, most modern drugs have numerous side effects, some of which cause severe kidney and liver problems. On the other hand, natural compounds rich in anthocyanidins (cyanidin, delphinidin, malvidin, pelargonidin, peonidin, and petunidin) have also been used for the prevention and treatment of DM. However, lack of standardization, poor stability, unpleasant taste, and decreased absorption leading to low bioavailability have hindered the application of anthocyanins as therapeutics. Therefore, nanotechnology has been used for more successful delivery of these bioactive compounds. This review summarizes the potential of anthocyanins for the prevention and treatment of DM and its complications, as well as the strategies and advances in the delivery of anthocyanins using nanoformulations.
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Affiliation(s)
- Ana R Nunes
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- CNC-Centre for Neuroscience and Cell Biology, Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Elisabete C Costa
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Gilberto Alves
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Luís R Silva
- CICS-UBI, Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
- CPIRN-UDI-IPG-Research Unit for Inland Development, Center for Potential and Innovation of Natural Resources, Polytechnic of Guarda, 6300-554 Guarda, Portugal
- CIEPQPF, Department of Chemical Engineering, University of Coimbra, Pólo II-Pinhal de Marrocos, 3030-790 Coimbra, Portugal
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Duarte AC, Costa EC, Filipe HAL, Saraiva SM, Jacinto T, Miguel SP, Ribeiro MP, Coutinho P. Animal-derived products in science and current alternatives. Biomater Adv 2023; 151:213428. [PMID: 37146527 DOI: 10.1016/j.bioadv.2023.213428] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/08/2023] [Accepted: 04/11/2023] [Indexed: 05/07/2023]
Abstract
More than fifty years after the 3Rs definition and despite the continuous implementation of regulatory measures, animals continue to be widely used in basic research. Their use comprises not only in vivo experiments with animal models, but also the production of a variety of supplements and products of animal origin for cell and tissue culture, cell-based assays, and therapeutics. The animal-derived products most used in basic research are fetal bovine serum (FBS), extracellular matrix proteins such as Matrigel™, and antibodies. However, their production raises several ethical issues regarding animal welfare. Additionally, their biological origin is associated with a high risk of contamination, resulting, frequently, in poor scientific data for clinical translation. These issues support the search for new animal-free products able to replace FBS, Matrigel™, and antibodies in basic research. In addition, in silico methodologies play an important role in the reduction of animal use in research by refining the data previously to in vitro and in vivo experiments. In this review, we depicted the current available animal-free alternatives in in vitro research.
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Affiliation(s)
- Ana C Duarte
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal; CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Elisabete C Costa
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal
| | - Hugo A L Filipe
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal
| | - Sofia M Saraiva
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal
| | - Telma Jacinto
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal
| | - Sónia P Miguel
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal; CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Maximiano P Ribeiro
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal; CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Paula Coutinho
- CPIRN/IPG - Centro de Potencial e Inovação em Recursos Naturais, Instituto Politécnico da Guarda (CPIRN/IPG), 6300-559 Guarda, Portugal; CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal.
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Silva AS, Costa EC, Reis S, Spencer C, Calhelha RC, Miguel SP, Ribeiro MP, Barros L, Vaz JA, Coutinho P. Silk Sericin: A Promising Sustainable Biomaterial for Biomedical and Pharmaceutical Applications. Polymers (Basel) 2022; 14:polym14224931. [PMID: 36433058 PMCID: PMC9699483 DOI: 10.3390/polym14224931] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [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: 09/30/2022] [Revised: 11/01/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022] Open
Abstract
Silk is a natural composite fiber composed mainly of hydrophobic fibroin and hydrophilic sericin, produced by the silkworm Bombyx mori. In the textile industry, the cocoons of B. mori are processed into silk fabric, where the sericin is substantially removed and usually discarded in wastewater. This wastewater pollutes the environment and water sources. However, sericin has been recognized as a potential biomaterial due to its biocompatibility, immunocompatibility, biodegradability, anti-inflammatory, antibacterial, antioxidant and photoprotective properties. Moreover, sericin can produce hydrogels, films, sponges, foams, dressings, particles, fibers, etc., for various biomedical and pharmaceutical applications (e.g., tissue engineering, wound healing, drug delivery, cosmetics). Given the severe environmental pollution caused by the disposal of sericin and its beneficial properties, there has been growing interest in upcycling this biomaterial, which could have a strong and positive economic, social and environmental impact.
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Affiliation(s)
- Andreia S. Silva
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Elisabete C. Costa
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
| | - Sara Reis
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Carina Spencer
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
| | - Ricardo C. Calhelha
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Correspondence: (R.C.C.); (P.C.)
| | - Sónia P. Miguel
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Maximiano P. Ribeiro
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Lillian Barros
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Josiana A. Vaz
- Centro de Investigação da Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Paula Coutinho
- CPIRN-IPG—Center of Potential and Innovation of Natural Resources, Polytechnic Institute of Guarda, 6300-559 Guarda, Portugal
- CICS-UBI—Health Sciences Research Centre, University of Beira Interior, 6200-506 Covilhã, Portugal
- Correspondence: (R.C.C.); (P.C.)
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Jacinto TA, Rodrigues CF, Moreira AF, Miguel SP, Costa EC, Ferreira P, Correia IJ. Hyaluronic acid and vitamin E polyethylene glycol succinate functionalized gold-core silica shell nanorods for cancer targeted photothermal therapy. Colloids Surf B Biointerfaces 2020; 188:110778. [DOI: 10.1016/j.colsurfb.2020.110778] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/13/2019] [Accepted: 01/04/2020] [Indexed: 01/10/2023]
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Moreira AF, Rodrigues CF, Jacinto TA, Miguel SP, Costa EC, Correia IJ. Microneedle-based delivery devices for cancer therapy: A review. Pharmacol Res 2019; 148:104438. [DOI: 10.1016/j.phrs.2019.104438] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 08/28/2019] [Accepted: 08/29/2019] [Indexed: 12/28/2022]
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Costa EC, Silva DN, Moreira AF, Correia IJ. Optical clearing methods: An overview of the techniques used for the imaging of 3D spheroids. Biotechnol Bioeng 2019; 116:2742-2763. [PMID: 31282993 DOI: 10.1002/bit.27105] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/17/2019] [Accepted: 06/24/2019] [Indexed: 12/13/2022]
Abstract
Spheroids have emerged as in vitro models that reproduce in a great extent the architectural microenvironment found in human tissues. However, the imaging of 3D cell cultures is highly challenging due to its high thickness, which results in a light-scattering phenomenon that limits light penetration. Therefore, several optical clearing methods, widely used in the imaging of animal tissues, have been recently explored to render spheroids with enhanced transparency. These methods are aimed to homogenize the microtissue refractive index (RI) and can be grouped into four different categories, namely (a) simple immersion in an aqueous solution with high RI; (b) delipidation and dehydration followed by RI matching; (c) delipidation and hyperhydration followed by RI matching; and (d) hydrogel embedding followed by delipidation and RI matching. In this review, the main optical clearing methods, their mechanism of action, advantages, and disadvantages are described. Furthermore, the practical examples of the optical clearing methods application for the imaging of 3D spheroids are highlighted.
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Affiliation(s)
- Elisabete C Costa
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilha, Portugal
| | - Daniel N Silva
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilha, Portugal
| | - André F Moreira
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilha, Portugal
| | - Ilídio J Correia
- CICS-UBI, Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Covilha, Portugal.,CIEPQF, Departamento de Engenharia Química, Universidade de Coimbra, Coimbra, Portugal
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Alves CG, de Melo-Diogo D, Lima-Sousa R, Costa EC, Correia IJ. Hyaluronic acid functionalized nanoparticles loaded with IR780 and DOX for cancer chemo-photothermal therapy. Eur J Pharm Biopharm 2019; 137:86-94. [DOI: 10.1016/j.ejpb.2019.02.016] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/21/2019] [Accepted: 02/19/2019] [Indexed: 01/13/2023]
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de Melo-Diogo D, Lima-Sousa R, Alves CG, Costa EC, Louro RO, Correia IJ. Functionalization of graphene family nanomaterials for application in cancer therapy. Colloids Surf B Biointerfaces 2018; 171:260-275. [DOI: 10.1016/j.colsurfb.2018.07.030] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/13/2018] [Accepted: 07/14/2018] [Indexed: 11/28/2022]
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Nunes AS, Barros AS, Costa EC, Moreira AF, Correia IJ. 3D tumor spheroids as in vitro models to mimic in vivo human solid tumors resistance to therapeutic drugs. Biotechnol Bioeng 2018; 116:206-226. [DOI: 10.1002/bit.26845] [Citation(s) in RCA: 309] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 07/30/2018] [Accepted: 09/21/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Ana S. Nunes
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
| | - Andreia S. Barros
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
| | - Elisabete C. Costa
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
| | - André F. Moreira
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
| | - Ilídio J. Correia
- Health Sciences Research Centre, Universidade da Beira Interior (CICS-UBI); Covilhã Portugal
- Departamento de Engenharia Química; Universidade de Coimbra, (CIEPQF); Coimbra Portugal
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Nunes AS, Costa EC, Barros AS, de Melo-Diogo D, Correia IJ. Establishment of 2D Cell Cultures Derived From 3D MCF-7 Spheroids Displaying a Doxorubicin Resistant Profile. Biotechnol J 2018; 14:e1800268. [PMID: 30242980 DOI: 10.1002/biot.201800268] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 09/14/2018] [Indexed: 01/09/2023]
Abstract
In vitro 3D cancer spheroids generally exhibit a drug resistance profile similar to that found in solid tumors. Due to this property, these models are an appealing for anticancer compounds screening. Nevertheless, the techniques and methods aimed for drug discovery are mostly standardized for cells cultured in 2D. The development of 2D cell culture models displaying a drug resistant profile is required to mimic the in vivo tumors, while the equipment, techniques, and methodologies established for conventional 2D cell cultures can continue to be employed in compound screening. In this work, the response of 3D-derived MCF-7 cells subsequently cultured in 2D in medium supplemented with glutathione (GSH) (antioxidant agent found in high levels in breast cancer tissues and a promoter of cancer cells resistance) to Doxorubicin (DOX) is evaluated. These cells demonstrated a resistance toward DOX closer to that displayed by 3D spheroids, which is higher than that exhibited by standard 2D cell cultures. In fact, the 50% inhibitory concentration (IC50 ) of DOX in 3D-derived MCF-7 cell cultures supplemented with GSH is about eight-times higher than that obtained for conventional 2D cell cultures (cultured without GSH), and is only about two-times lower than that attained for 3D MCF-7 spheroids (cultured without GSH). Further investigation revealed that this improved resistance of 3D-derived MCF-7 cells may result from their increased P-glycoprotein (P-gp) activity and reduced production of intracellular reactive oxygen species (ROS).
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Affiliation(s)
- Ana S Nunes
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Elisabete C Costa
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Andreia S Barros
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Duarte de Melo-Diogo
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506, Covilhã, Portugal
| | - Ilídio J Correia
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Avenida Infante D. Henrique, 6200-506, Covilhã, Portugal.,CIEPQF - Departamento de Engenharia Química, Universidade de Coimbra, Rua Sílvio Lima, Polo II, 3030-790, Coimbra, Portugal
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Moreira AF, Rodrigues CF, Reis CA, Costa EC, Ferreira P, Correia IJ. Development of poly-2-ethyl-2-oxazoline coated gold-core silica shell nanorods for cancer chemo-photothermal therapy. Nanomedicine (Lond) 2018; 13:2611-2627. [DOI: 10.2217/nnm-2018-0179] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: Develop a new poly-2-ethyl-2-oxazoline (PEOZ)-based coating for doxorubicin-loaded gold-core mesoporous silica shell (AuMSS) nanorods application in cancer chemo-photothermal therapy. Methods: PEOZ functionalized AuMSS nanorods were obtained through the chemical grafting on AuMSS of a PEOZ silane derivative. Results: The PEOZ chemical grafting on the surface of AuMSS nanorods allowed the neutralization of nanodevices’ surface charge, from -30 to -15 mV, which improved nanoparticles’ biocompatibility, namely by decreasing the blood hemolysis to negligible levels. In vitro antitumoral studies revealed that the combined treatment mediated by the PEOZ-coated AuMSS nanorods result in a synergistic effect, allowing the complete eradication of cervical cancer cells. Conclusion: The application of the PEOZ coating improves the AuMSS nanorods performance as a multifunctional combinatorial therapy for cervical cancer.
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Affiliation(s)
- André F Moreira
- CICS-UBI – Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Carolina F Rodrigues
- CICS-UBI – Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Catarina A Reis
- CICS-UBI – Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
- UCIBIO, REQUIMTE–Departamento de Química, Faculdade Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Elisabete C Costa
- CICS-UBI – Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Paula Ferreira
- CIEPQF–Departamento de Engenharia Química, Universidade de Coimbra, Rua 13 Sílvio Lima, 3030-790 Coimbra, Portugal
| | - Ilídio J Correia
- CICS-UBI – Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
- CIEPQF–Departamento de Engenharia Química, Universidade de Coimbra, Rua 13 Sílvio Lima, 3030-790 Coimbra, Portugal
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de Melo-Diogo D, Costa EC, Alves CG, Lima-Sousa R, Ferreira P, Louro RO, Correia IJ. POxylated graphene oxide nanomaterials for combination chemo-phototherapy of breast cancer cells. Eur J Pharm Biopharm 2018; 131:162-169. [DOI: 10.1016/j.ejpb.2018.08.008] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/03/2018] [Accepted: 08/18/2018] [Indexed: 01/08/2023]
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Lamas ML, Lima MS, Pinho AC, Tugushi D, Katsarava R, Costa EC, Correia IJ, Serra AC, Coelho JF, Fonseca AC. Towards the development of electrospun mats from poly(ε-caprolactone)/poly(ester amide)s miscible blends. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.07.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Lima-Sousa R, de Melo-Diogo D, Alves CG, Costa EC, Ferreira P, Louro RO, Correia IJ. Hyaluronic acid functionalized green reduced graphene oxide for targeted cancer photothermal therapy. Carbohydr Polym 2018; 200:93-99. [PMID: 30177213 DOI: 10.1016/j.carbpol.2018.07.066] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 07/23/2018] [Accepted: 07/23/2018] [Indexed: 12/29/2022]
Abstract
Reduced graphene oxide (rGO) nanomaterials display promising properties for application in cancer photothermal therapy (PTT). rGO is usually obtained by treating graphene oxide (GO) with hydrazine hydrate. However, this reducing agent contributes for the low cytocompatibility exhibited by rGO. Furthermore, rGO has a low water stability and does not show selectivity towards cancer cells. Herein, rGO attained using an environmentally-friendly method was functionalized with a novel hyaluronic acid (HA)-based amphiphilic polymer to be used in targeted cancer PTT. Initially, the green-reduction of GO with L-Ascorbic acid was optimized considering the near infrared absorption and the size distribution of the nanomaterials. Then, rGO was functionalized with the HA-based amphiphile. The functionalization of rGO improved its stability, cytocompatibility and internalization by CD44 overexpressing cells, which indicates the targeting capacity of this nanoformulation. Furthermore, the on-demand PTT mediated by HA-functionalized rGO induced cancer cells' ablation, thereby confirming its potential for targeted cancer therapy.
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Affiliation(s)
- Rita Lima-Sousa
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Duarte de Melo-Diogo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Cátia G Alves
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Elisabete C Costa
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Paula Ferreira
- CIEPQPF - Departamento de Engenharia Química, Universidade de Coimbra, Rua Silvio Lima, 3030-790 Coimbra, Portugal
| | - Ricardo O Louro
- ITQB - Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal; CIEPQPF - Departamento de Engenharia Química, Universidade de Coimbra, Rua Silvio Lima, 3030-790 Coimbra, Portugal.
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Costa EC, Moreira AF, de Melo-Diogo D, Correia IJ. Polyethylene glycol molecular weight influences the ClearT2 optical clearing method for spheroids imaging by confocal laser scanning microscopy. J Biomed Opt 2018; 23:1-11. [PMID: 29752799 DOI: 10.1117/1.jbo.23.5.055003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 02/03/2018] [Accepted: 04/17/2018] [Indexed: 06/08/2023]
Abstract
Some fluorescence microscopy techniques, such as confocal laser scanning microscopy (CLSM), have a limited penetration depth. Consequently, the visualization and imaging of three-dimensional (3-D) cell cultures, such as spheroids, using these methods can be a significant challenge. Therefore, to improve the imaging of 3-D tissues, optical clearing methods have been optimized to render transparency to the opaque spheroids. The influence of the polyethylene glycol (PEG) molecular weight (MW) used in the ClearT2 method for the imaging of propidium iodide (PI)-stained spheroids was investigated. The results demonstrated that the ClearT2 clearing method contributes to spheroids transparency and to the preservation of PI fluorescence intensity for all the PEG MW used (4000, 8000, and 10,000 Da). Furthermore, the ClearT2 method performed using PEG 4000 Da allowed a better PI signal penetration depth and cross-section depth. Overall, the optimization of PEG MW can improve the imaging of intact spheroids by CLSM. Furthermore, this work may also contribute to increase the application of 3-D cell culture models by the pharmaceutical industry for the high-throughput screening of therapeutics.
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Affiliation(s)
- Elisabete C Costa
- Universidade da Beira Interior, Centro de Investigação em Ciⓔncias da Saúde-Health Sciences Research, Portugal
| | - André F Moreira
- Universidade da Beira Interior, Centro de Investigação em Ciⓔncias da Saúde-Health Sciences Research, Portugal
| | - Duarte de Melo-Diogo
- Universidade da Beira Interior, Centro de Investigação em Ciⓔncias da Saúde-Health Sciences Research, Portugal
| | - Ilídio J Correia
- Universidade da Beira Interior, Centro de Investigação em Ciⓔncias da Saúde-Health Sciences Research, Portugal
- Universidade de Coimbra, Centro de Investigação em Engenharia dos Processos Químicos e dos Produtos, Portugal
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Costa EC, de Melo-Diogo D, Moreira AF, Carvalho MP, Correia IJ. Spheroids Formation on Non-Adhesive Surfaces by Liquid Overlay Technique: Considerations and Practical Approaches. Biotechnol J 2017; 13. [DOI: 10.1002/biot.201700417] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 10/03/2017] [Accepted: 10/16/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Elisabete C. Costa
- CICS-UBI − Health Sciences Research Centre; Universidade da Beira Interior; 6200-506 Covilhã Portugal
| | - Duarte de Melo-Diogo
- CICS-UBI − Health Sciences Research Centre; Universidade da Beira Interior; 6200-506 Covilhã Portugal
| | - André F. Moreira
- CICS-UBI − Health Sciences Research Centre; Universidade da Beira Interior; 6200-506 Covilhã Portugal
| | - Marco P. Carvalho
- CICS-UBI − Health Sciences Research Centre; Universidade da Beira Interior; 6200-506 Covilhã Portugal
| | - Ilídio J. Correia
- CICS-UBI − Health Sciences Research Centre; Universidade da Beira Interior; 6200-506 Covilhã Portugal
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17
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Carvalho MP, Costa EC, Correia IJ. Assembly of breast cancer heterotypic spheroids on hyaluronic acid coated surfaces. Biotechnol Prog 2017; 33:1346-1357. [PMID: 28547896 DOI: 10.1002/btpr.2497] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 05/04/2017] [Indexed: 12/20/2022]
Abstract
Drug screening is currently demanding for realistic models that are able to reproduce the structural features of solid tumors. 3D cell culture systems, namely spheroids, emerged as a promising approach to provide reliable results during drug development. So far, liquid overlay technique (LOT) is one of the most used methods for spheroids assembly. It comprises cellular aggregation due to their limited adhesion to certain biomaterials, like agarose. However, researchers are currently improving this technique in order to obtain spheroids on surfaces that mimic cancer extracellular matrix (ECM), since cell-ECM interactions modulate cells behavior and their drug resistance profile. Herein, hyaluronic acid (HA) coated surfaces were used, for the first time, for the production of reproducible heterotypic breast cancer spheroids. The obtained results revealed that it is possible to control the size, shape, and number of spheroids gotten per well by changing the HA concentration and the number of cells initially seeded in each well. © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 33:1346-1357, 2017.
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Affiliation(s)
- Marco P Carvalho
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, 6200-506, Portugal
| | - Elisabete C Costa
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, 6200-506, Portugal
| | - Ilídio J Correia
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, 6200-506, Portugal
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18
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Moreira AF, Dias DR, Costa EC, Correia IJ. Thermo- and pH-responsive nano-in-micro particles for combinatorial drug delivery to cancer cells. Eur J Pharm Sci 2017; 104:42-51. [PMID: 28347775 DOI: 10.1016/j.ejps.2017.03.033] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 02/20/2017] [Accepted: 03/24/2017] [Indexed: 10/19/2022]
Abstract
Drug combinatorial therapy has been gaining the scientific community attention as a suitable approach to increase treatments efficacy and promote cancer eradication. In this study, a new pH- and thermo- responsive carrier was developed by combining doxorubicin-loaded gold-core silica shell nanorods with salicylic acid loaded poly (lactic-co-glycolic acid) based microparticles (NIMPS). The obtained results showed that the drugs and nanorods release could be triggered by the near-infrared (NIR) laser irradiation or by the exposition to an acidic environment. The in vitro 2D cell studies showed that the NIMPS are biocompatible and easily uptaken by HeLa cells. In addition, 3D cell culture models revealed that the NIMPS administration, combined with the NIR laser irradiation, was capable of reducing the size of the HeLa spheroids up to 48%. Overall, the attained data support the application of the nano-in-micro spheres as a dual stimuli responsive drug carrier system for the local administration of combined therapies to cervical cancer cells.
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Affiliation(s)
- André F Moreira
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Diana R Dias
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Elisabete C Costa
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal
| | - Ilídio J Correia
- CICS-UBI - Health Sciences Research Centre, Universidade da Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
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de Melo-Diogo D, Pais-Silva C, Costa EC, Louro RO, Correia IJ. D-α-tocopheryl polyethylene glycol 1000 succinate functionalized nanographene oxide for cancer therapy. Nanomedicine (Lond) 2017; 12:443-456. [PMID: 28181461 DOI: 10.2217/nnm-2016-0384] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [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 evaluate the therapeutic capacity of D-α-tocopheryl polyethylene glycol 1000 succinate (TPGS)-functionalized nanographene oxide (nGO) in breast cancer cells. METHODS TPGS-functionalized nGO-based materials were obtained through two different approaches: a simple sonication method and a one-pot hydrothermal treatment. RESULTS TPGS coating successfully improved the stability of the nGO-based materials. The nanomaterials that underwent the hydrothermal procedure generated a 1.4- to 1.6-fold higher temperature variation under near infrared laser irradiation than those prepared only by sonication. In vitro, the TPGS/nGO derivatives reduced breast cancer cells' viability and had an insignificant effect on healthy cells. Furthermore, the combined application of TPGS/nGO derivatives and near infrared light generated an improved therapeutic effect. CONCLUSION TPGS/nGO derivatives are promising materials for breast cancer phototherapy.
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Affiliation(s)
- Duarte de Melo-Diogo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Cleide Pais-Silva
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Elisabete C Costa
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
| | - Ricardo O Louro
- ITQB - Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, 2780-157 Oeiras, Portugal
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506 Covilhã, Portugal
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20
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Costa EC, Dantas TCB, de Farias Junior LF, Frazão DT, Prestes J, Moreira SR, Ritti-Dias RM, Tibana RA, Duhamel TA. Inter- and Intra-Individual Analysis of Post-Exercise Hypotension Following a Single Bout of High-Intensity Interval Exercise and Continuous Exercise: A Pilot Study. Int J Sports Med 2016; 37:1038-1043. [PMID: 27676151 DOI: 10.1055/s-0042-112029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Recently, post-exercise blood pressure (BP) has been considered a predictive tool to identify individuals who are responsive or not to BP reductions with exercise training (i. e., "high" and "low responders"). This study aimed to analyze the inter- and intra-individual BP responsiveness following a single bout of high-intensity interval exercise (HIIE) and continuous exercise (CE) in normotensive men (n=14; 24.5±4.2 years). Mean change in BP during the 60 min period post-exercise was analyzed and minimal detectable change (MDC) was calculated to classify the subjects as "low" (no post-exercise hypotension [PEH]) and "high responders" (PEH occurrence) following each exercise protocol (inter-individual analysis). The MDC for systolic and diastolic BP was 5.8 and 7.0 mmHg. In addition, a difference equal/higher than MDC between the exercise protocols was used to define an occurrence of intra-individual variability in BP responsiveness. There were "low" and "high" PEH responders following both exercise protocols (inter-individual variability) as well as subjects who presented higher PEH following a specific exercise protocol (intra-individual variability between exercise protocols). These results were observed mainly for systolic BP. In summary, PEH is a heterogeneous physiological phenomenon and, for some subjects, seems to be exercise-protocol dependent. Further investigations are necessary to confirm our preliminary findings.
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Affiliation(s)
- E C Costa
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - T C B Dantas
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - L F de Farias Junior
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - D T Frazão
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - J Prestes
- Department of Physical Education, Federal University of Vale do São Francisco, Petrolina, PE, Brazil
| | - S R Moreira
- Department of Physical Education, Federal University of Vale do São Francisco, Petrolina, PE, Brazil
| | - R M Ritti-Dias
- Hospital Israelita Albert Einstein, São Paulo, SP, Brazil
| | - R A Tibana
- Health Leisure and Human Performance Research Institute, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada
| | - T A Duhamel
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Centre, Winnipeg, MB, Canada
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Gaspar VM, Baril P, Costa EC, de Melo-Diogo D, Foucher F, Queiroz JA, Sousa F, Pichon C, Correia IJ. Bioreducible poly(2-ethyl-2-oxazoline)-PLA-PEI-SS triblock copolymer micelles for co-delivery of DNA minicircles and Doxorubicin. J Control Release 2015; 213:175-191. [PMID: 26184050 DOI: 10.1016/j.jconrel.2015.07.011] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 07/08/2015] [Accepted: 07/09/2015] [Indexed: 12/20/2022]
Abstract
The co-delivery of minicircle DNA (mcDNA) and small anti-cancer drugs via stimuli-sensitive nanocarriers is a promising approach for combinatorial cancer therapy. However, the simultaneous loading of drugs and DNA in nanosized delivery systems is remarkably challenging. In this study we describe the synthesis of triblock copolymer micelles based on poly(2-ethyl-2-oxazoline)-poly(L-lactide) grafted with bioreducible polyethylenimine (PEOz-PLA-g-PEI-SS) for co-delivery of supercoiled (sc) mcDNA vectors and Doxorubicin (Dox). These amphiphilic carriers take advantage of non-fouling oxazolines to confer biological stability, of PLA to provide a hydrophobic core for drug encapsulation and of bioreducible PEI-SS to provide mcDNA complexation and an on-demand stimuli-responsive release. The obtained results show that mcDNA-loaded micelleplexes penetrate into in vitro tumor spheroid models with specific kinetics and exhibit a higher gene expression when compared to non-bioreducible nanocarriers. Moreover, in vivo bioluminescence imaging showed that gene expression is detected up to 8days following mcDNA-micelles intratumoral administration. Furthermore, drug-gene co-delivery in PEOz-PLA-g-PEI-SS carriers was verified by successful encapsulation of both Dox and mcDNA with high efficacy. Moreover, dual-loaded micelleplexes presented significant uptake and a cytotoxic effect in 2D cultures of cancer cells. The co-delivery of mcDNA-Dox to B16F10-Luciferase tumor bearing mice resulted in a reduction in tumor volume and cancer cells viability. Overall, such findings indicate that bioreducible triblock micelles are efficient for focal delivery in vivo and have potential for future application in combinatorial DNA-drug therapy.
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Affiliation(s)
- Vítor M Gaspar
- CICS-UBI - Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Patrick Baril
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and University of Orléans, 45071 Orléans cedex 02, France
| | - Elisabete C Costa
- CICS-UBI - Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Duarte de Melo-Diogo
- CICS-UBI - Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Frédéric Foucher
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and University of Orléans, 45071 Orléans cedex 02, France
| | - João A Queiroz
- CICS-UBI - Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Fani Sousa
- CICS-UBI - Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Chantal Pichon
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and University of Orléans, 45071 Orléans cedex 02, France
| | - Ilídio J Correia
- CICS-UBI - Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal.
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22
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Gaspar VM, Moreira AF, Costa EC, Queiroz JA, Sousa F, Pichon C, Correia IJ. Gas-generating TPGS-PLGA microspheres loaded with nanoparticles (NIMPS) for co-delivery of minicircle DNA and anti-tumoral drugs. Colloids Surf B Biointerfaces 2015. [PMID: 26209779 DOI: 10.1016/j.colsurfb.2015.07.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [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: 12/20/2022]
Abstract
Drug-DNA combination therapies are receiving an ever growing focus due to their potential for improving cancer treatment. However, such approaches are still limited by the lack of multipurpose delivery systems that encapsulate drugs and condense DNA simultaneously. In this study, we describe the successful formulation of gas-generating pH-responsive D-α-tocopherol PEG succinate-poly(D,L-lactic-co-glycolic acid) (TPGS-PLGA) hollow microspheres loaded with both Doxorubicin (Dox) and minicircle DNA (mcDNA) nanoparticles as a strategy to co-deliver these therapeutics. For this study mcDNA vectors were chosen due to their increased therapeutic efficiency in comparison to standard plasmid DNA. The results demonstrate that TPGS-PLGA microcarriers can encapsulate Dox and chitosan nanoparticles completely condense mcDNA. The loading of mcDNA-nanoparticles into microspheres was confirmed by 3D confocal microscopy and co-localization analysis. The resulting TPGS-PLGA-Dox-mcDNA nanoparticle-in-microsphere hybrid carriers exhibit a well-defined spherical shape and neutral surface charge. Microcarriers incubation in acidic pH produced a gas-mediated Dox release, corroborating the microcarriers stimuli-responsive character. Also, the dual-loaded TPGS-PLGA particles achieved 5.2-fold higher cellular internalization in comparison with non-pegylated microspheres. This increased intracellular concentration resulted in a higher cytotoxic effect. Successful transgene expression was obtained after nanoparticle-mcDNA co-delivery in the microspheres. Overall these findings support the concept of using nanoparticle-microsphere multipart systems to achieve efficient co-delivery of various drug-mcDNA combinations.
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Affiliation(s)
- Vítor M Gaspar
- CICS-UBI-Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - André F Moreira
- CICS-UBI-Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Elisabete C Costa
- CICS-UBI-Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - João A Queiroz
- CICS-UBI-Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Fani Sousa
- CICS-UBI-Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Chantal Pichon
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and University of Orléans, 45071 Orléans cedex 02, France
| | - Ilídio J Correia
- CICS-UBI-Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal.
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23
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de Melo-Diogo D, Gaspar VM, Costa EC, Moreira AF, Oppolzer D, Gallardo E, Correia IJ. Combinatorial delivery of Crizotinib-Palbociclib-Sildenafil using TPGS-PLA micelles for improved cancer treatment. Eur J Pharm Biopharm 2014; 88:718-29. [PMID: 25308930 DOI: 10.1016/j.ejpb.2014.09.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 09/16/2014] [Accepted: 09/29/2014] [Indexed: 12/24/2022]
Abstract
The co-delivery of multiple chemotherapeutics by micellar delivery systems is a valuable approach to improve cancer treatment since various disease hallmarks can be targeted simultaneously. However, the delivery of multiple drugs requires a nanocarrier structure that can encapsulate various bioactive molecules. In this study, we evaluate the simultaneous encapsulation of a novel triple drug combination in D-α-tocopheryl polyethylene glycol 1000 succinate-poly(lactic acid) (TPGS-PLA) amphiphilic micelles for cancer therapy. The drug mixture involves two anti-tumoral drugs, Crizotinib and Palbociclib combined with Sildenafil, a compound that is capable of increasing drug accumulation in the intracellular compartment. Such combination aims to achieve an enhanced cytotoxic effect in cancer cells. Our results demonstrated that TPGS-PLA copolymers self-assembled into stable nanosized micelles (158.3nm) capable of co-encapsulating the three drugs with high loading efficiency. Triple drug loaded TPGS-PLA micelles were internalized in A549 non-small lung cancer cells and exhibited an improved cytotoxic effect in comparison with single (Crizotinib) or dual (Crizotinib-Palbociclib) drug loaded micelles, indicating the therapeutic potential of the triple co-delivery strategy. These findings demonstrate that TPGS-PLA micelles are suitable carriers for multiple drug delivery and also that this particular drug combination may have potential to improve cancer treatment.
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Affiliation(s)
- Duarte de Melo-Diogo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506, Covilhã, Portugal
| | - Vítor M Gaspar
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506, Covilhã, Portugal
| | - Elisabete C Costa
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506, Covilhã, Portugal
| | - André F Moreira
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506, Covilhã, Portugal
| | - David Oppolzer
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506, Covilhã, Portugal
| | - Eugénia Gallardo
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506, Covilhã, Portugal
| | - Ilídio J Correia
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, 6200-506, Covilhã, Portugal.
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Rocha RMP, Alves AMCV, Lima LF, Duarte ABG, Chaves RN, Brito IR, Costa EC, Bernuci MP, Rosa-e-Silva ACJS, Xu M, Rodrigues APR, Campello CC, Figueiredo JR. Is the mouse follicle culture a good model for the goat with respect to the development of preantral follicles in vitro? Domest Anim Endocrinol 2014; 49:27-30. [PMID: 25010025 DOI: 10.1016/j.domaniend.2014.04.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 04/24/2014] [Accepted: 04/25/2014] [Indexed: 10/25/2022]
Abstract
The present study evaluated the efficiency of using 2 culture media developed for mice and for goats in the in vitro preantral follicle culture of each species. Murine and caprine secondary follicles were cultured in vitro with human recombinant follicle-stimulating hormone (murine medium) or with bovine recombinant follicle-stimulating hormone in association with growth hormone (caprine medium). The results showed that murine follicles cultured in caprine medium had lower (P < 0.05) rates of follicular survival and growth, whereas for caprine follicles, these variables were not affected by the type of medium used (P > 0.05). After in vitro maturation, a higher (P < 0.05) number of oocytes that resumed meiosis were observed in the murine medium for both species. In contrast, only in the caprine species estradiol production was significantly superior when the caprine medium was used. Higher progesterone production was observed in the presence of the murine medium only for murine follicles (P < 0.05). In conclusion, murine and caprine preantral follicles cultured under the same in vitro culture medium conditions respond differently; caprine oocytes grown in vitro in the presence of the murine medium show the greatest developmental competence among the tested combinations. Therefore, under the present experimental conditions, the mouse follicle culture has proved be a good model for the development of new culture media for caprine preantral follicles.
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Affiliation(s)
- R M P Rocha
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil.
| | - A M C V Alves
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil
| | - L F Lima
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil
| | - A B G Duarte
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil
| | - R N Chaves
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil
| | - I R Brito
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil
| | - E C Costa
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil
| | - M P Bernuci
- Department of Obstetrics and Gynecology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - A C J S Rosa-e-Silva
- Department of Obstetrics and Gynecology, Faculty of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, Sao Paulo, Brazil
| | - M Xu
- Division of Reproductive Biology and Clinical Research, Department of Obstetrics and Gynecology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - A P R Rodrigues
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil
| | - C C Campello
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil
| | - J R Figueiredo
- Faculty of Veterinary Medicine, LAMOFOPA, State University of Ceara, Fortaleza, Ceara, Brazil
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25
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Gaspar VM, Gonçalves C, de Melo-Diogo D, Costa EC, Queiroz JA, Pichon C, Sousa F, Correia IJ. Poly(2-ethyl-2-oxazoline)-PLA-g-PEI amphiphilic triblock micelles for co-delivery of minicircle DNA and chemotherapeutics. J Control Release 2014; 189:90-104. [PMID: 24984013 DOI: 10.1016/j.jconrel.2014.06.040] [Citation(s) in RCA: 70] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 06/21/2014] [Accepted: 06/21/2014] [Indexed: 12/24/2022]
Abstract
The design of nanocarriers for the delivery of drugs and nucleic-acids remains a very challenging goal due to their physicochemical differences. In addition, the reported accelerated clearance and immune response of pegylated nanomedicines highlight the necessity to develop carriers using new materials. Herein, we describe the synthesis of amphiphilic triblock poly(2-ethyl-2-oxazoline)-PLA-g-PEI (PEOz-PLA-g-PEI) micelles for the delivery of minicircle DNA (mcDNA) vectors. In this copolymer the generally used PEG moieties are replaced by the biocompatible PEOz polymer backbone that assembles the hydrophilic shell. The obtained results show that amphiphilic micelles have low critical micellar concentration, are hemocompatible and exhibit stability upon incubation in serum. The uptake in MCF-7 cells was efficient and the nanocarriers achieved 2.7 fold higher expression than control particles. Moreover, mcDNA-loaded micelleplexes penetrated into 3D multicellular spheroids and promoted widespread gene expression. Additionally, to prove the concept of co-delivery, mcDNA and doxorubicin (Dox) were simultaneously encapsulated in PEOz-PLA-g-PEI carriers, with high efficiency. Dox-mcDNA micelleplexes exhibited extensive cellular uptake and demonstrated anti-tumoral activity. These findings led us to conclude that this system has a potential not only for the delivery of novel mcDNA vectors, but also for the co-delivery of drug-mcDNA combinations without PEG functionalization.
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Affiliation(s)
- Vítor M Gaspar
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Cristine Gonçalves
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm et Université d'Orléans, 45071 Orléans cedex 02, France
| | - Duarte de Melo-Diogo
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Elisabete C Costa
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - João A Queiroz
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Chantal Pichon
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm et Université d'Orléans, 45071 Orléans cedex 02, France
| | - Fani Sousa
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal
| | - Ilídio J Correia
- CICS-UBI, Health Sciences Research Center, University of Beira Interior, 6200-506 Covilhã, Portugal.
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Costa EC, Gaspar VM, Coutinho P, Correia IJ. Optimization of liquid overlay technique to formulate heterogenic 3D co-cultures models. Biotechnol Bioeng 2014; 111:1672-85. [PMID: 24615162 DOI: 10.1002/bit.25210] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/29/2014] [Accepted: 01/31/2014] [Indexed: 12/31/2022]
Abstract
Three-dimensional (3D) cell culture models of solid tumors are currently having a tremendous impact in the in vitro screening of candidate anti-tumoral therapies. These 3D models provide more reliable results than those provided by standard 2D in vitro cell cultures. However, 3D manufacturing techniques need to be further optimized in order to increase the robustness of these models and provide data that can be properly correlated with the in vivo situation. Therefore, in the present study the parameters used for producing multicellular tumor spheroids (MCTS) by liquid overlay technique (LOT) were optimized in order to produce heterogeneous cellular agglomerates comprised of cancer cells and stromal cells, during long periods. Spheroids were produced under highly controlled conditions, namely: (i) agarose coatings; (ii) horizontal stirring, and (iii) a known initial cell number. The simultaneous optimization of these parameters promoted the assembly of 3D characteristic cellular organization similar to that found in the in vivo solid tumors. Such improvements in the LOT technique promoted the assembly of highly reproducible, individual 3D spheroids, with a low cost of production and that can be used for future in vitro drug screening assays.
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Affiliation(s)
- Elisabete C Costa
- CICS-UBI-Health Sciences Research Centre, Universidade da Beira Interior, 6200-506, Covilhã, Portugal
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Costa EC, Gaspar VM, Marques JG, Coutinho P, Correia IJ. Evaluation of nanoparticle uptake in co-culture cancer models. PLoS One 2013; 8:e70072. [PMID: 23922909 PMCID: PMC3724604 DOI: 10.1371/journal.pone.0070072] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Accepted: 06/15/2013] [Indexed: 01/22/2023] Open
Abstract
Co-culture models are currently bridging the gap between classical cultures and in vivo animal models. Exploring this novel approach unlocks the possibility to mimic the tumor microenvironment in vitro, through the establishment of cancer-stroma synergistic interactions. Notably, these organotypic models offer a perfect platform for the development and pre-clinical evaluation of candidate nanocarriers loaded with anti-tumoral drugs in a high throughput screening mode, with lower costs and absence of ethical issues. However, this evaluation was until now limited to co-culture systems established with precise cell ratios, not addressing the natural cell heterogeneity commonly found in different tumors. Therefore, herein the multifunctional nanocarriers efficiency was characterized in various fibroblast-MCF-7 co-culture systems containing different cell ratios, in order to unravel key design parameters that influence nanocarrier performance and the therapeutic outcome. The successful establishment of the co-culture models was confirmed by the tissue-like distribution of the different cells in culture. Nanoparticles incubation in the various co-culture systems reveals that these nanocarriers possess targeting specificity for cancer cells, indicating their suitability for being used in this illness therapy. Additionally, by using different co-culture ratios, different nanoparticle uptake profiles were obtained. These findings are of crucial importance for the future design and optimization of new drug delivery systems, since their real targeting capacity must be addressed in heterogenous cell populations, such as those found in tumors.
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Affiliation(s)
- Elisabete C Costa
- Centro de Investigação em Ciências da Saúde (CICS), Universidade da Beira Interior, Covilhã, Portugal
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Weigand O, de Souza AZ, Okawara H, Costa EC, Salvatore CA. [Post-mastectomy rehabilitation]. AMB Rev Assoc Med Bras 1982; 28:143-7. [PMID: 6984942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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