1
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Santos MGD, França FS, Prestes JP, Teixeira C, Sommer LC, Sperling LE, Pranke P. Production of a Bioink Containing Decellularized Spinal Cord Tissue for 3D Bioprinting. Tissue Eng Part A 2024; 30:61-74. [PMID: 37772706 DOI: 10.1089/ten.tea.2023.0078] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2023] Open
Abstract
For the past few years, three-dimensional (3D) bioprinting has emerged as a promising approach in the field of regenerative medicine. This technique allows for the production of 3D scaffolds to support cell transplantation due to its ability to mimic the extracellular environment. One alternative to enhancing cell adhesion, survival, and proliferation is the use of decellularized extracellular matrix as a bioink component. The aim of this study was to produce a bioink using lyophilized rat decellularized spinal cord tissue (DSCT) for 3D bioprinting of nervous tissue. DNA quantification, hematoxylin and eosin and DAPI staining indicated that 1% sodium dodecyl sulfate and 9 h processing were effective in removing the cells from the spinal cord samples. The cell viability assay showed that the decellularized matrix is not cytotoxic for PC12 cells. The hydrogel containing DSCT, alginate, and gelatine used as the base for the bioink has a shear thinning behavior and low G″/G' ratio, allowing for good printability without compromising cell viability after 3D bioprinting. The bioink supported long-term PC12 cell survival, with 93% of live cells 4 weeks after printing, and stimulated the production of laminin-1 and neurofilament-M. This bioink, therefore, represents an easily available biomaterial for central nervous system tissue engineering.
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Affiliation(s)
- Marcelo Garrido Dos Santos
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | - Fernanda Stapenhorst França
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - João Pedro Prestes
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Cristian Teixeira
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Brazil
| | - Luiz Carlos Sommer
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Laura Elena Sperling
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Instituto de Pesquisa com Células-tronco (IPCT), Porto Alegre, Brazil
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2
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Bastidas JG, Maurmann N, Scholl JN, Weber AF, Silveira RP, Figueiró F, Stimamiglio MA, Marcon B, Correa A, Pranke P. Secretome of stem cells from human exfoliated deciduous teeth (SHED) and its extracellular vesicles improves keratinocytes migration, viability, and attenuation of H 2 O 2 -induced cytotoxicity. Wound Repair Regen 2023; 31:827-841. [PMID: 38038971 DOI: 10.1111/wrr.13131] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 09/14/2023] [Accepted: 11/10/2023] [Indexed: 12/02/2023]
Abstract
Therapies for wound healing using the secretome and extracellular vesicles (EVs) of mesenchymal stem/stromal cells have been shown to be successful in preclinical studies. This study aimed to characterise the protein content of the secretome from stem cells from human exfoliated deciduous teeth (SHED) and analyse the in vitro effects of SHED-conditioned medium (SHED-CM) and SHED extracellular vesicles (SHED-EVs) on keratinocytes. EVs were isolated and characterised. The keratinocyte viability and migration of cells treated with SHED-EVs and conditioned medium (CM) were evaluated. An HaCaT apoptosis model induced by H2 O2 in vitro was performed with H2 O2 followed by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and live/dead assays. Finally, the expression of vascular endothelial growth factor (VEGF) in keratinocytes treated with secretome and EVs was evaluated by immunofluorescence staining and confirmed with RT-qPCR. SHED-EVs revealed a cup-shaped morphology with expression of the classical markers for exosomes CD9 and CD63, and a diameter of 181 ± 87 nm. The internalisation of EVs by HaCaT cells was confirmed by fluorescence microscopy. Proteomic analysis identified that SHED-CM is enriched with proteins related to stress response and development, including cytokines (CXCL8, IL-6, CSF1, CCL2) and growth factors (IGF2, MYDGF, PDGF). The results also indicated that 50% CM and 0.4-0.6 μg/mL EVs were similarly efficient for improving keratinocyte viability, migration, and attenuation of H2 O2 -induced cytotoxicity. Additionally, expression of VEGF on keratinocytes increased when treated with SHED secretome and EVs. Furthermore, VEGF gene expression in keratinocytes increased significantly when treated with SHED secretome and EVs. Both SHED-CM and SHED-EVs may therefore be promising therapeutic tools for accelerating re-epithelialization in wound healing.
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Affiliation(s)
- Juliana Girón Bastidas
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Natasha Maurmann
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Juliete Nathali Scholl
- Post Graduate Program in Biological Sciences: Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Augusto Ferreira Weber
- Post Graduate Program in Biological Sciences: Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Raíssa Padilha Silveira
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fabricio Figueiró
- Post Graduate Program in Biological Sciences: Biochemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Biochemistry Department, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Marco Augusto Stimamiglio
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas, FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, Curitiba, Paraná, Brazil
| | - Bruna Marcon
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas, FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, Curitiba, Paraná, Brazil
| | - Alejandro Correa
- Stem Cells Basic Biology Laboratory, Instituto Carlos Chagas, FIOCRUZ/PR, Rua Professor Algacyr Munhoz Mader, Curitiba, Paraná, Brazil
| | - Patricia Pranke
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
- Stem Cell Research Institute (Instituto de Pesquisa com Células-tronco), Porto Alegre, Rio Grande do Sul, Brazil
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Maurmann N, França FS, Girón J, Pranke P. Cell Electrospinning: a Review of Materials and Methodologies for Biofabrication. Adv Biol (Weinh) 2023; 7:e2300058. [PMID: 37271854 DOI: 10.1002/adbi.202300058] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 02/05/2023] [Revised: 04/22/2023] [Indexed: 06/06/2023]
Abstract
The process of electrohydrodynamic living cell microencapsulation inside a scaffold during the electrospinning (ES) process is called cell electrospinning (CE). Several studies demonstrate the feasibility of using cell electrospinning for biomedical applications, allowing for the direct biofabrication of living cells to be encapsulated in fibers for the formation of active biological scaffolds. In this review, a comprehensive overview of the materials and methodologies used in cell electrospinning, as well as their biomedical application in tissue engineering, is provided. Cell ES represents an innovative technique for automated application in regenerative medicine.
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Affiliation(s)
- Natasha Maurmann
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/304G, Porto Alegre, 90.610-000, Brazil
| | - Fernanda S França
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/304G, Porto Alegre, 90.610-000, Brazil
| | - Juliana Girón
- Center for Information Technology Renato Archer, Rodovia Dom Pedro I (SP-65), Km 143,6, Amarais, Campinas, SP, 13069-901, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752/304G, Porto Alegre, 90.610-000, Brazil
- Stem Cell Research Institute, Rua dos Andradas, 1464/133, Porto Alegre, 90.020-010, Brazil
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Bastidas JG, Maurmann N, Oliveira L, Alcantara B, Pinheiro CV, Leipnitz G, Meyer F, Oliveira M, Rigon P, Pranke P. Bilayer scaffold from PLGA/fibrin electrospun membrane and fibrin hydrogel layer supports wound healing in vivo. Biomed Mater 2023; 18. [PMID: 36599168 DOI: 10.1088/1748-605x/acb02f] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 01/04/2023] [Indexed: 01/05/2023]
Abstract
Hybrid scaffolds from natural and synthetic polymers have been widely used due to the complementary nature of their physical and biological properties. The aim of the present study, therefore, has been to analyzein vivoa bilayer scaffold of poly(lactide-co-glycolide)/fibrin electrospun membrane and fibrin hydrogel layer on a rat skin model. Fibroblasts were cultivated in the fibrin hydrogel layer and keratinocytes on the electrospun membrane to generate a skin substitute. The scaffolds without and with cells were tested in a full-thickness wound model in Wistar Kyoto rats. The histological results demonstrated that the scaffolds induced granulation tissue growth, collagen deposition and epithelial tissue remodeling. The wound-healing markers showed no difference in scaffolds when compared with the positive control. Activities of antioxidant enzymes were decreased concerning the positive and negative control. The findings suggest that the scaffolds contributed to the granulation tissue formation and the early collagen deposition, maintaining an anti-inflammatory microenvironment.
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Affiliation(s)
- Juliana Girón Bastidas
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Ipiranga Av., 2752, room 304G, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil.,Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Sarmento Leite Av., 500, 90050-170 Porto Alegre, RS, Brazil
| | - Natasha Maurmann
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Ipiranga Av., 2752, room 304G, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil.,Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Sarmento Leite Av., 500, 90050-170 Porto Alegre, RS, Brazil
| | - Luiza Oliveira
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Ipiranga Av., 2752, room 304G, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil
| | - Bruno Alcantara
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Ipiranga Av., 2752, room 304G, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil
| | - Camila Vieira Pinheiro
- Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Sarmento Leite Av., 500, 90050-170 Porto Alegre, RS, Brazil.,Biochemistry Department, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, 90035-003 Porto Alegre, RS, Brazil
| | - Guilhian Leipnitz
- Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Sarmento Leite Av., 500, 90050-170 Porto Alegre, RS, Brazil.,Biochemistry Department, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, 90035-003 Porto Alegre, RS, Brazil.,Post Graduation Program in Biological Sciences: Biochemistry, Biochemistry Department, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, 90035-003 Porto Alegre, RS, Brazil
| | - Fabíola Meyer
- Biochemistry Department, Universidade Federal do Rio Grande do Sul, Rua Ramiro Barcelos, 2600, 90035-003 Porto Alegre, RS, Brazil
| | - Maikel Oliveira
- Department of Morphological Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90050-170, Brazil
| | - Paula Rigon
- Department of Morphological Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90050-170, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Ipiranga Av., 2752, room 304G, 90610-000 Porto Alegre, Rio Grande do Sul, Brazil.,Post Graduate Program in Biological Sciences: Physiology, Universidade Federal do Rio Grande do Sul, Sarmento Leite Av., 500, 90050-170 Porto Alegre, RS, Brazil.,Stem Cell Research Institute (Instituto de Pesquisa com Células-tronco), Porto Alegre, Rio Grande do Sul, Brazil
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5
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Borges MF, Maurmann N, Pranke P. Easy-to-Assembly System for Decellularization and Recellularization of Liver Grafts in a Bioreactor. Micromachines (Basel) 2023; 14:449. [PMID: 36838149 PMCID: PMC9962055 DOI: 10.3390/mi14020449] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 01/31/2023] [Accepted: 02/10/2023] [Indexed: 06/18/2023]
Abstract
Decellularization of organs creates an acellular scaffold, ideal for being repopulated by cells. In this work, a low-cost perfusion system was created to be used in the process of liver decellularization and as a bioreactor after recellularization. It consists of a glass chamber to house the organ coupled to a peristaltic pump to promote liquid flow through the organ vascular tree. The rats' liver decellularization was made with a solution of sodium dodecyl sulfate. The recellularization was made with 108 mesenchymal stromal/stem cells and cultivated for seven days. The decellularized matrices showed an absence of DNA while preserving the collagen and glycosaminoglycans quantities, confirming the efficiency of the process. The functional analyses showed a rise in lactate dehydrogenase levels occurring in the first days of the cultivation, suggesting that there is cell death in this period, which stabilized on the seventh day. Histological analysis showed conservation of the collagen web and some groups of cells next to the vessels. It was possible to establish a system for decellularization and a bioreactor to use for the recellularization method. It is easy to assemble, can be ready to use in little time and be easily sterilized.
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Affiliation(s)
- Maurício Felisberto Borges
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Brazil
| | - Natasha Maurmann
- Postgraduate Program in Physiology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90050-170, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre 90610-000, Brazil
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Andrade JMM, Maurmann N, Lopes DV, Pereira DP, Pranke P, Henriques AT. Rosmarinic and chlorogenic acid, isolated from ferns, suppress stem cell damage induced by hydrogen peroxide. J Pharm Pharmacol 2022; 74:1609-1617. [PMID: 36029199 DOI: 10.1093/jpp/rgac061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 09/24/2021] [Accepted: 07/25/2022] [Indexed: 11/12/2022]
Abstract
OBJECTIVES Evaluating the effects of rosmarinic (RA) and cryptochlorogenic (CGA) acids isolated from Blechnum binervatum extract on stem cell viability, toxicity and the protective effect on oxidative cell damage. METHODS MTT and LDH methods were employed, using stem cells from teeth. RA and CGA were evaluated at 100, 250 and 500 µM. The negative effect of hydrogen peroxide (H2O2) (200-2200 µM) and the capacity of RA and CGA (10-100 µM) as protective agents were also evaluated. DAPI followed by fluorescent microscopy was employed to photograph the treated and untreated cells. KEY FINDINGS At all tested concentrations, RA and CGA demonstrated the ability to maintain cell viability, and with no cytotoxic effects on the treated stem cells. RA also induced an increase of the cell viability and a reduction in cytotoxicity. H2O2 (1400 µM) induced >50% of cytotoxicity, and both compounds were capable of suppressing H2O2 damage, even at the lowest concentration. At 100 µM, in H2O2 presence, total cell viability was observed through microscope imaging. CONCLUSIONS These findings contribute to the continued research into natural substances with the potential for protecting cells against oxidative injury, with the consideration that RA and CGA are useful in the regeneration of damaged stem cells.
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Affiliation(s)
- J M M Andrade
- Laboratory of Pharmacognosy, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, 90.610-000, Porto Alegre, RS, Brazil
| | - N Maurmann
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, 90.610-000, Porto Alegre, RS, Brazil.,Post-graduate Program in Physiology, UFRGS, Avenida Sarmento Leite, 500/sala PPG Fisiologia, 90.050-170, Porto Alegre, RS, Brazil
| | - D V Lopes
- Laboratory of Pharmacognosy, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, 90.610-000, Porto Alegre, RS, Brazil
| | - D P Pereira
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, 90.610-000, Porto Alegre, RS, Brazil
| | - P Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, 90.610-000, Porto Alegre, RS, Brazil.,Post-graduate Program in Physiology, UFRGS, Avenida Sarmento Leite, 500/sala PPG Fisiologia, 90.050-170, Porto Alegre, RS, Brazil.,Stem Cell Research Institute, Rua dos Andradas, 1464/133, 90.020-010, Porto Alegre, RS, Brazil
| | - A T Henriques
- Laboratory of Pharmacognosy, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga 2752, 90.610-000, Porto Alegre, RS, Brazil
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Ortega Vega MR, Baldin EK, Pereira DP, Martins MCS, Pranke P, Horn F, Pinheiro I, Vieira A, Espiña B, Mattedi S, Malfatti CDF. Toxicity of oleate-based amino protic ionic liquids towards Escherichia coli, Danio rerio embryos and human skin cells. J Hazard Mater 2022; 422:126896. [PMID: 34449326 DOI: 10.1016/j.jhazmat.2021.126896] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 03/22/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 06/13/2023]
Abstract
Protic ionic liquids (PILs) have been widely employed with the label of "green solvents'' in different sectors of technology and industry. The studied PILs are promising for corrosion inhibition and lubrication applications in industry. Industrial use of the PILs can transform them in wastes, due to accidental spill or drag in water due to washing, that can reach water bodies. In addition, the handling of the product by the workers can expose them to accidental contact. Thus, the aim of this work is to evaluate the toxicity of PILs 2-hydroxyethylammonium oleate (2-HEAOl), N-methyl-2-hydroxyethylammonium oleate (m-2HEAOl) and bis-2-hydroxyethylammonium oleate (BHEAOl) towards Escherichia coli, zebrafish embryos, model organisms that can be present in water, and human skin cells. This is the first work reporting toxicity results for these PILs, which constitutes its novelty. Results showed that the studied PILs did not inhibit E. coli bacterial growth but could cause human skin cells death at the concentrations of use. LC50 values for zebrafish eggs were 40.21 mg/L for 2HEAOl, 12.92 mg/L for BHEAOl and 32.74 mg/L for m-2HEAOl, with sublethal effects at lower concentrations, such as hatching retarding, low heart rate and absence of free swimming.
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Affiliation(s)
- Maria Rita Ortega Vega
- Laboratório de Pesquisa em Corrosão - LAPEC, Department of Metallurgy, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves 9500, Block 4, BLDG 43 427, Porto Alegre, RS, Brazil.
| | - Estela Kerstner Baldin
- Laboratório de Pesquisa em Corrosão - LAPEC, Department of Metallurgy, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves 9500, Block 4, BLDG 43 427, Porto Alegre, RS, Brazil.
| | - Daniela Pavulack Pereira
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Av. Ipiranga n. 2752, Room 304 G, Porto Alegre, RS, Brazil; Programa de Pós-graduação em Patologia. Universidade Federal de Ciências da Saúde de Porto Alegre, Rua Sarmento Leite, 245, Porto Alegre, RS, Brazil.
| | - Martha Cestari Silva Martins
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Av. Ipiranga n. 2752, Room 304 G, Porto Alegre, RS, Brazil.
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Av. Ipiranga n. 2752, Room 304 G, Porto Alegre, RS, Brazil.
| | - Fabiana Horn
- Laboratório de Microbiologia Celular, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves 9500, Block 4, Porto Alegre, RS, Brazil.
| | - Ivone Pinheiro
- Water Quality Research Group, International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga, Portugal.
| | - Ana Vieira
- Water Quality Research Group, International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga, Portugal
| | - Begoña Espiña
- Water Quality Research Group, International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga s/n, Braga, Portugal.
| | - Silvana Mattedi
- Applied Thermodynamic Laboratory for a Sustainable Science, Graduate Program on Chemical Engineering, Universidade Federal da Bahia - UFBA, Rua Aristides Novis 2, Salvador, BA, Brazil.
| | - Célia de Fraga Malfatti
- Laboratório de Pesquisa em Corrosão - LAPEC, Department of Metallurgy, Universidade Federal do Rio Grande do Sul - UFRGS, Av. Bento Gonçalves 9500, Block 4, BLDG 43 427, Porto Alegre, RS, Brazil.
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8
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Pozzobon LG, Sperling LE, Teixeira CE, Malysz T, Pranke P. Development of a conduit of PLGA-gelatin aligned nanofibers produced by electrospinning for peripheral nerve regeneration. Chem Biol Interact 2021; 348:109621. [PMID: 34450165 DOI: 10.1016/j.cbi.2021.109621] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 03/27/2021] [Accepted: 08/04/2021] [Indexed: 11/17/2022]
Abstract
A promising alternative to conventional nerve grafting is the use of artificial grafts made from biodegradable and biocompatible materials and support cells. The aim of this study has been to produce a biodegradable nerve conduit and investigate the cytocompatibility with stem cells and its regeneration promoting properties in a rat animal model. A poly (lactic-co-glycolic acid) (PLGA) conduit of aligned nanofibers was produced by the electrospinning method, functionalized with gelatin and seeded either with mouse embryonic stem cells (mESCs) or with human mesenchymal stem cells (SHED). The cell proliferation and viability were analyzed in vitro. The conduits were implanted in a rat model of sciatic nerve lesion by transection. The functional recovery was monitored for 8 weeks using the Sciatic Functional Index (SFI) and histological analyses were used to assess the nerve regeneration. Scaffolds of aligned PLGA fibers with an average diameter of 0.90 ± 0.36 μm and an alignment coefficient of 0.817 ± 0.07 were produced. The treatment with gelatin increased the fiber diameter to 1.05 ± 0.32 μm, reduced the alignment coefficient to 0.655 ± 0.045 and made the scaffold very hydrophilic. The cell viability and Live/dead assay showed that the stem cells remained viable and proliferated after 7 days in culture. Confocal images of phalloidin/DAPI staining showed that the cells adhered and proliferated widely, in fully adaptation with the biomaterial. The SFI values of the group that received the conduit were similar to the values of the control lesioned group. In conclusion, conduits composed of PLGA-gelatin nanofibers were produced and promoted a very good interaction with the stem cells. Although in vitro studies have shown this biomaterial to be a promising biomaterial for the regeneration of nerve tissue, in vivo studies of this graft have not shown significant improvements in nerve regeneration.
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Affiliation(s)
- Laura Gonçalves Pozzobon
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Av. Ipiranga 2752, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Stem Cell Laboratory, Fundamental Health Science Institute, Rua Sarmento Leite, 500, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
| | - Laura Elena Sperling
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Av. Ipiranga 2752, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Stem Cell Laboratory, Fundamental Health Science Institute, Rua Sarmento Leite, 500, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Cristian E Teixeira
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Av. Ipiranga 2752, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Stem Cell Laboratory, Fundamental Health Science Institute, Rua Sarmento Leite, 500, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Tais Malysz
- Instituto de Ciências básicas da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Av. Ipiranga 2752, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Stem Cell Laboratory, Fundamental Health Science Institute, Rua Sarmento Leite, 500, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Instituto de Pesquisa com Células-tronco, IPCT, Porto Alegre, RS, Brazil
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9
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Girón J, Maurmann N, Pranke P. The role of stem cell-derived exosomes in the repair of cutaneous and bone tissue. J Cell Biochem 2021; 123:183-201. [PMID: 34514621 DOI: 10.1002/jcb.30144] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 06/17/2021] [Revised: 08/28/2021] [Accepted: 08/31/2021] [Indexed: 12/26/2022]
Abstract
Exosomes are extracellular vesicles secreted by various cell types, which play important roles in physiological processes. In particular, stem cell-derived exosomes have been shown to play crucial functions in intercellular communication during the tissue healing process. This review summarizes the effects of exosomes derived from different stem cell sources on the repair of cutaneous and bone tissue, focusing on the different pathways that could be involved in the regeneration process. The biogenesis, isolation, and content of exosomes have also been discussed. The effectiveness of exosomes is broadly demonstrated for skin and bone regeneration in animal models, supporting the basis for clinical translation of exosomes as a ready-to-use cell-free therapeutic for skin and bone regeneration.
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Affiliation(s)
- Juliana Girón
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Natasha Maurmann
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Patricia Pranke
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.,Stem Cell Research Institute, Porto Alegre, Rio Grande do Sul, Brazil
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10
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Girón J, Kerstner E, Medeiros T, Oliveira L, Machado GM, Malfatti CF, Pranke P. Biomaterials for bone regeneration: an orthopedic and dentistry overview. Braz J Med Biol Res 2021; 54:e11055. [PMID: 34133539 PMCID: PMC8208772 DOI: 10.1590/1414-431x2021e11055] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [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: 02/08/2021] [Accepted: 04/23/2021] [Indexed: 12/14/2022] Open
Abstract
Because bone-associated diseases are increasing, a variety of tissue engineering approaches with bone regeneration purposes have been proposed over the last years. Bone tissue provides a number of important physiological and structural functions in the human body, being essential for hematopoietic maintenance and for providing support and protection of vital organs. Therefore, efforts to develop the ideal scaffold which is able to guide the bone regeneration processes is a relevant target for tissue engineering researchers. Several techniques have been used for scaffolding approaches, such as diverse types of biomaterials. On the other hand, metallic biomaterials are widely used as support devices in dentistry and orthopedics, constituting an important complement for the scaffolds. Hence, the aim of this review is to provide an overview of the degradable biomaterials and metal biomaterials proposed for bone regeneration in the orthopedic and dentistry fields in the last years.
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Affiliation(s)
- J Girón
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-graduação em Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - E Kerstner
- Programa de Pós-graduação em Engenharia de Minas, Metalúrgica e de Materiais, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - T Medeiros
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-graduação em Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - L Oliveira
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - G M Machado
- Programa de Gradução em Odontologia, Universidade Luterana do Brasil, Canoas, RS, Brasil
| | - C F Malfatti
- Programa de Pós-graduação em Engenharia de Minas, Metalúrgica e de Materiais, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - P Pranke
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-graduação em Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Instituto de Pesquisa com Células Tronco, Porto Alegre, RS, Brasil
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11
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Possolli NM, da Silva DF, Vieira J, Maurmann N, Pranke P, Demétrio KB, Angioletto E, Montedo ORK, Arcaro S. Dissolution, bioactivity behavior, and cytotoxicity of 19.58Li 2 O·11.10ZrO 2 ·69.32SiO 2 glass-ceramic. J Biomed Mater Res B Appl Biomater 2021; 110:67-78. [PMID: 34121326 DOI: 10.1002/jbm.b.34889] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/22/2021] [Revised: 05/19/2021] [Accepted: 06/07/2021] [Indexed: 11/08/2022]
Abstract
Glass and bioactive glass-ceramic can be used in several applications. In bone growth where good bone/biomaterial adhesion was required, bioactive coatings for implants can improve bone formation. The glass and glass-ceramics of the LZS (Li2 O-ZrO2 -SiO2 ) system are very interesting because of their mechanical, electrical, and thermal properties. Very recently, their biological response in contact with human osteoblast has been evaluated. However, despite several initiatives, there are still no studies that systematically assess this system's bioactivity, dissolution, and cytotoxicity in vitro. This work aims to investigate the dissolution, bioactivity behavior, and cytotoxicity of LZS glass-ceramic. LZS glass-ceramics were produced from SiO2 , Li2 CO3, and ZrSiO4 by melting followed by quenching. The obtained glass frits were milled and uniaxially pressed and heat-treated at 800 and 900°C and submitted to physical-chemical, structural and mechanical characterization. Their dissolution behavior was studied in Tris-HCl, while bioactivity was performed in simulated solution body fluid (SBF). The cytotoxicity test was performed using glass-ceramic in direct contact with mesenchymal stem/stromal cells (SC) isolated from human exfoliated deciduous teeth. Structural and microstructural analyzes confirmed bioactivity. The results show that it was possible to produce bioactive glass-ceramic from LZS, proven by the formation of new calcium phosphate structures such as hydroxyapatite on the surface of the samples after exposure to SBF. The SC viability test performed indicated that the materials were not cytotoxic at 0.25, 0.5, and 1.0 mg/ml. The glass-ceramic system under study is very promising for a medicinal application that requires bioactivity and/or biocompatibility for bone regeneration.
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Affiliation(s)
- Natália Morelli Possolli
- Engenharia Química, Universidade do Extremo Sul Catarinense, Criciúma, Brazil.,Grupo de Biomateriais e Materiais Nanoestruturados, Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Daiara Floriano da Silva
- Grupo de Biomateriais e Materiais Nanoestruturados, Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Jaqueline Vieira
- Programa de Pós-Graduação em Engenharia de Minas, Metalúrgica e de Materiais, Laboratório de Materiais Cerâmicos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Natasha Maurmann
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Ciências Biológicas: Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Patricia Pranke
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Programa de Pós-Graduação em Ciências Biológicas: Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Instituto de Pesquisa com Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Ketner Bendo Demétrio
- Engenharia Química, Universidade do Extremo Sul Catarinense, Criciúma, Brazil.,Grupo de Biomateriais e Materiais Nanoestruturados, Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Elidio Angioletto
- Engenharia Química, Universidade do Extremo Sul Catarinense, Criciúma, Brazil.,Grupo de Biomateriais e Materiais Nanoestruturados, Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Oscar Rubem Klegues Montedo
- Engenharia Química, Universidade do Extremo Sul Catarinense, Criciúma, Brazil.,Grupo de Biomateriais e Materiais Nanoestruturados, Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Criciúma, Brazil
| | - Sabrina Arcaro
- Engenharia Química, Universidade do Extremo Sul Catarinense, Criciúma, Brazil.,Grupo de Biomateriais e Materiais Nanoestruturados, Programa de Pós-graduação em Ciência e Engenharia de Materiais, Universidade do Extremo Sul Catarinense, Criciúma, Brazil
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12
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Leal BBJ, Wakabayashi N, Oyama K, Kamiya H, Braghirolli DI, Pranke P. Vascular Tissue Engineering: Polymers and Methodologies for Small Caliber Vascular Grafts. Front Cardiovasc Med 2021; 7:592361. [PMID: 33585576 PMCID: PMC7873993 DOI: 10.3389/fcvm.2020.592361] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [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: 08/06/2020] [Accepted: 12/09/2020] [Indexed: 12/24/2022] Open
Abstract
Cardiovascular disease is the most common cause of death in the world. In severe cases, replacement or revascularization using vascular grafts are the treatment options. While several synthetic vascular grafts are clinically used with common approval for medium to large-caliber vessels, autologous vascular grafts are the only options clinically approved for small-caliber revascularizations. Autologous grafts have, however, some limitations in quantity and quality, and cause an invasiveness to patients when harvested. Therefore, the development of small-caliber synthetic vascular grafts (<5 mm) has been urged. Since small-caliber synthetic grafts made from the same materials as middle and large-caliber grafts have poor patency rates due to thrombus formation and intimal hyperplasia within the graft, newly innovative methodologies with vascular tissue engineering such as electrospinning, decellularization, lyophilization, and 3D printing, and novel polymers have been developed. This review article represents topics on the methodologies used in the development of scaffold-based vascular grafts and the polymers used in vitro and in vivo.
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Affiliation(s)
- Bruna B J Leal
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.,Post-graduate Program in Physiology, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Naohiro Wakabayashi
- Division of Cardiac Surgery, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Kyohei Oyama
- Division of Cardiac Surgery, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Hiroyuki Kamiya
- Division of Cardiac Surgery, Department of Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Daikelly I Braghirolli
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.,Post-graduate Program in Physiology, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.,Stem Cell Research Institute, Porto Alegre, Brazil
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13
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Abstract
Spinal cord injury (SCI) affects the central nervous system (CNS) and there is currently no treatment with the potential for rehabilitation. Although several clinical treatments have been developed, they are still at an early stage and have not shown success in repairing the broken fiber, which prevents cellular regeneration and integral restoration of motor and sensory functions. Considering the importance of nanotechnology and tissue engineering for neural tissue injuries, this review focuses on the latest advances in nanotechnology for SCI treatment and tissue repair. The PubMed database was used for the bibliographic survey. Initial research using the following keywords "tissue engineering and spinal cord injury" revealed 970 articles published in the last 10 years. The articles were further analyzed, excluding those not related to SCI or with results that did not pertain to the field of interest, including the reviews. It was observed that a total of 811 original articles used the quoted keywords. When the word "treatment" was added, 662 articles were found and among them, 529 were original ones. Finally, when the keywords "Nanotechnology and spinal cord injury" were used, 102 articles were found, 65 being original articles. A search concerning the biomaterials used for SCI found 700 articles with 589 original articles. A total of 107 articles were included in the discussion of this review and some are used for the theoretical framework. Recent progress in nanotechnology and tissue engineering has shown promise for repairing CNS damage. A variety of in vivo animal testing for SCI has been used with or without cells and some of these in vivo studies have shown successful results. However, there is no translation to humans using nanotechnology for SCI treatment, although there is one ongoing trial that employs a tissue engineering approach, among other technologies. The first human surgical scaffold implantation will elucidate the possibility of this use for further clinical trials. This review concludes that even though tissue engineering and nanotechnology are being investigated as a possibility for SCI treatment, tests with humans are still in the theoretical stage. Impact statement Thousands of people are affected by spinal cord injury (SCI) per year in the world. This type of lesion is one of the most severe conditions that can affect humans and usually causes permanent loss of strength, sensitivity, and motor function below the injury site. This article reviews studies on the PubMed database, assessing the publications on SCI in the study field of tissue engineering, focusing on the use of nanotechnology for the treatment of SCI. The review makes an evaluation of the biomaterials used for the treatment of this condition and the techniques applied for the production of nanostructured biomaterials.
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Affiliation(s)
- Rafaela Zimmermann
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Yuri Vieira Alves
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Laura E Sperling
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Health School, Faculty of Medicine, UNISINOS, São Leopoldo, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Research Institute, Porto Alegre, Brazil
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14
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Leal B, Braghirolli D, Pranke P. EVALUATION OF IN VITRO CULTIVATION OF ENDOTHELIAL PROGENITOR CELLS ON VASCULAR SCAFFOLDS FUNCTIONALIZED WITH NANOCAPSULES CONTAINING HEPARIN. Hematol Transfus Cell Ther 2020. [DOI: 10.1016/j.htct.2020.10.759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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15
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Casagrande RB, Baldin EK, Steffens D, Pavulack D, Pranke P, Brandalise RN, de Fraga Malfatti C. HA-hybrid matrix composite coating on Ti-Cp for biomedical application. J Mater Sci Mater Med 2020; 31:82. [PMID: 32959099 DOI: 10.1007/s10856-020-06423-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 09/05/2020] [Indexed: 06/11/2023]
Abstract
Calcium phosphate coatings have been applied to titanium metal substrates and their alloys as a synergistic alternative capable of combining the mechanical properties of metals and the excellent bioactive properties provided by ceramic materials. However, the unsatisfactory adhesion of hydroxyapatite coatings on metallic substrates, as well as their limitation when subjected to mechanical stresses have been reported as a limitation. Biofunctional coatings have been proposed as an alternative to single ceramic coatings, aiming at optimizing the long-term clinical success of biomaterials such as Ti. This work aims at evaluating the morphological properties and biological behavior of Ti-cp coated with matrix composite coating hydroxyapatite-containing hybrid. The hybrid matrix was obtained from TEOS and MTES silicon precursors, with dispersed hydroxyapatite suspended by dip coating. For the morphological characterization FTIR, SEM/FEG, AFM and contact angle measurement were used. Biological behavior was evaluated for toxicity, cell viability and the osteogenic differentiation capacity of mesenchymal stem cells. The composite coatings obtained showed regular dispersion of hydroxyapatite particles in the hybrid matrix, with uniform coating adhering to the Ti-Cp substrate. Nevertheless, although they provided similar viability behavior of mesenchymal stem cells to the Ti-Cp substrate, the evaluated coatings did not present osteoinductive properties. This result is probably due to the pronounced hydrophobic behavior caused by the incorporation of HA.
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Affiliation(s)
- Rosiana Boniatti Casagrande
- LAPEC-Corrosion Research Laboratory, Universidade Federal do Rio Grande do Sul (UFRGS), 9500 Bento Gonçalves Av., Porto Alegre, RS, Brazil.
| | - Estela Kerstner Baldin
- LAPEC-Corrosion Research Laboratory, Universidade Federal do Rio Grande do Sul (UFRGS), 9500 Bento Gonçalves Av., Porto Alegre, RS, Brazil
| | - Daniela Steffens
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, and Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul (UFRGS), 2752 Ipiranga Av., Porto Alegre, RS, Brazil
- Stem Cell Research Institute-Instituto de Pesquisa com Células-tronco-(IPCT), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, 90610-000, Brazil
| | - Daniela Pavulack
- Postgraduate Program in Pathology, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, 90050-170, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, and Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul (UFRGS), 2752 Ipiranga Av., Porto Alegre, RS, Brazil
- Stem Cell Research Institute-Instituto de Pesquisa com Células-tronco-(IPCT), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, 90610-000, Brazil
| | - Rosmary Nichele Brandalise
- PGPROTEC-Postgraduate Program in Process and Technology Engineering, Universidade de Caxias do Sul (UCS), Francisco Getúlio Vargas Street, 1130, Caxias do Sul, RS, Brazil
| | - Célia de Fraga Malfatti
- LAPEC-Corrosion Research Laboratory, Universidade Federal do Rio Grande do Sul (UFRGS), 9500 Bento Gonçalves Av., Porto Alegre, RS, Brazil
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16
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Bastidas JG, Maurmann N, da Silveira MR, Ferreira CA, Pranke P. Development of fibrous PLGA/fibrin scaffolds as a potential skin substitute. Biomed Mater 2020; 15:055014. [DOI: 10.1088/1748-605x/aba086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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17
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Veras FF, Ritter AC, Roggia I, Pranke P, Pereira CN, Brandelli A. Natamycin-loaded electrospun poly(ε-caprolactone) nanofibers as an innovative platform for antifungal applications. SN Appl Sci 2020. [DOI: 10.1007/s42452-020-2912-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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18
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Reis KP, Sperling LE, Teixeira C, Sommer L, Colombo M, Koester LS, Pranke P. VPA/PLGA microfibers produced by coaxial electrospinning for the treatment of central nervous system injury. ACTA ACUST UNITED AC 2020; 53:e8993. [PMID: 32294700 PMCID: PMC7162582 DOI: 10.1590/1414-431x20208993] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 11/03/2019] [Accepted: 01/27/2020] [Indexed: 12/20/2022]
Abstract
The central nervous system shows limited regenerative capacity after injury. Spinal cord injury (SCI) is a devastating traumatic injury resulting in loss of sensory, motor, and autonomic function distal from the level of injury. An appropriate combination of biomaterials and bioactive substances is currently thought to be a promising approach to treat this condition. Systemic administration of valproic acid (VPA) has been previously shown to promote functional recovery in animal models of SCI. In this study, VPA was encapsulated in poly(lactic-co-glycolic acid) (PLGA) microfibers by the coaxial electrospinning technique. Fibers showed continuous and cylindrical morphology, randomly oriented fibers, and compatible morphological and mechanical characteristics for application in SCI. Drug-release analysis indicated a rapid release of VPA during the first day of the in vitro test. The coaxial fibers containing VPA supported adhesion, viability, and proliferation of PC12 cells. In addition, the VPA/PLGA microfibers induced the reduction of PC12 cell viability, as has already been described in the literature. The biomaterials were implanted in rats after SCI. The groups that received the implants did not show increased functional recovery or tissue regeneration compared to the control. These results indicated the cytocompatibility of the VPA/PLGA core-shell microfibers and that it may be a promising approach to treat SCI when combined with other strategies.
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Affiliation(s)
- K P Reis
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Laboratório de Células-tronco, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-Graduação em Ciências Biológicas: Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - L E Sperling
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Laboratório de Células-tronco, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Curso de Medicina, Escola da Saúde, Universidade do Vale do Rio dos Sinos, São Leopoldo, RS, Brasil
| | - C Teixeira
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Laboratório de Células-tronco, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - L Sommer
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Laboratório de Células-tronco, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - M Colombo
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - L S Koester
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - P Pranke
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Laboratório de Células-tronco, Instituto de Ciências da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-Graduação em Ciências Biológicas: Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Instituto de Pesquisa com Células-tronco, Porto Alegre, RS, Brasil
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19
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Bridi H, Beckenkamp A, Maurmann N, Elingson B, Buffon A, Pranke P, von Poser GL. Phloroglucinol derivatives from Hypericum species induce in vitro proliferation of cells involved in the wound healing process. Nat Prod Res 2019; 35:4648-4652. [DOI: 10.1080/14786419.2019.1698576] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Henrique Bridi
- Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Aline Beckenkamp
- Laboratório de Análises Bioquímicas e Citológicas, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Natasha Maurmann
- Laboratório de Hematologia e Células-Tronco, Faculdade de Farmácia, e Instituto de Pesquisa Com Células-Tronco (IPCT), Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Bianca Elingson
- Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Andréia Buffon
- Laboratório de Análises Bioquímicas e Citológicas, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Patricia Pranke
- Laboratório de Hematologia e Células-Tronco, Faculdade de Farmácia, e Instituto de Pesquisa Com Células-Tronco (IPCT), Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Gilsane Lino von Poser
- Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
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20
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Sperling LE, Pires Reis K, Nicola F, Euzebio Teixeira C, Gulielmin Didó G, Garrido dos Santos M, Konrath E, Netto CA, Pranke P. Galantamine improves functional recovery and reduces lesion size in a rat model of spinal cord injury. Brain Res 2019; 1724:146424. [DOI: 10.1016/j.brainres.2019.146424] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 12/18/2022]
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21
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Braghirolli DI, Caberlon B, Gamba D, Petry J, Dias ML, Pranke P. Poly(trimethylene carbonate-co-L-lactide) electrospun scaffolds for use as vascular grafts. ACTA ACUST UNITED AC 2019; 52:e8318. [PMID: 31411247 PMCID: PMC6694404 DOI: 10.1590/1414-431x20198318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 01/16/2019] [Accepted: 05/31/2019] [Indexed: 11/22/2022]
Abstract
Currently, there is great clinical need for suitable synthetic grafts that can be used in vascular diseases. Synthetic grafts have been successfully used in medium and large arteries, however, their use in small diameter vessels is limited and presents a high failure rate. In this context, the aim of this study was to develop tissue engineering scaffolds, using poly(trimethylene carbonate-co-L-lactide) (PTMCLLA), for application as small diameter vascular grafts. For this, copolymers with varying trimethylene carbonate/lactide ratios - 20/80, 30/70, and 40/60 - were submitted to electrospinning and the resulting scaffolds were evaluated in terms of their physicochemical and biological properties. The scaffolds produced with PTMCLLA 20/80, 30/70, and 40/60 showed smooth fibers with an average diameter of 771±273, 606±242, and 697±232 nm, respectively. When the degradation ratio was evaluated, the three scaffold groups had a similar molecular weight (Mw) on the final day of analysis. PTMCLLA 30/70 and 40/60 scaffolds exhibited greater flexibility than the PTMCLLA 20/80. However, the PTMCLLA 40/60 scaffolds showed a large wrinkling and their biological properties were not evaluated. The PTMCLLA 30/70 scaffolds supported the adhesion and growth of mesenchymal stem cells (MSCs), endothelial progenitor cells, and smooth muscle cells (SMCs). In addition, they provided a spreading of MSCs and SMCs. Given the results, the electrospun scaffolds produced with PTMCLLA 30/70 copolymer can be considered promising candidates for future applications in vascular tissue engineering.
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Affiliation(s)
- D I Braghirolli
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-Graduação em Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - B Caberlon
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - D Gamba
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - Jftc Petry
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - M L Dias
- Instituto de Macromoléculas Professora Eloisa Mano (IMA), Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - P Pranke
- Laboratório de Hematologia e Células-tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-Graduação em Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Instituto de Pesquisa com Células-tronco, Porto Alegre, RS, Brasil
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22
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Kim JH, Alderton A, Crook JM, Benvenisty N, Brandsten C, Firpo M, Harrison PW, Kawamata S, Kawase E, Kurtz A, Loring JF, Ludwig T, Man J, Mountford JC, Turner ML, Oh S, da Veiga Pereira L, Pranke P, Sheldon M, Steeg R, Sullivan S, Yaffe M, Zhou Q, Stacey GN. A Report from a Workshop of the International Stem Cell Banking Initiative, Held in Collaboration of Global Alliance for iPSC Therapies and the Harvard Stem Cell Institute, Boston, 2017. Stem Cells 2019; 37:1130-1135. [PMID: 31021472 PMCID: PMC7187460 DOI: 10.1002/stem.3003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 11/28/2018] [Revised: 01/07/2019] [Accepted: 01/10/2019] [Indexed: 01/16/2023]
Abstract
This report summarizes the recent activity of the International Stem Cell Banking Initiative held at Harvard Stem Cell Institute, Boston, MA, USA, on June 18, 2017. In this meeting, we aimed to find consensus on ongoing issues of quality control (QC), safety, and efficacy of human pluripotent stem cell banks and their derivative cell therapy products for the global harmonization. In particular, assays for the QC testing such as pluripotency assays test and general QC testing criteria were intensively discussed. Moreover, the recent activities of global stem cell banking centers and the regulatory bodies were briefly summarized to provide an overview on global developments and issues. stem cells2019;37:1130–1135
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Affiliation(s)
- Jung-Hyun Kim
- Division of Intractable Diseases, Korea National Stem Cell Bank, Center for Biomedical Sciences, Korea National Institute of Health, Cheongju, Korea
| | - Alex Alderton
- Wellcome Sanger Institute, Cambridge, United Kingdom
| | - Jeremy M Crook
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, Wollongong, Australia.,Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, Australia.,Department of Surgery, St Vincent's Hospital, The University of Melbourne, Melbourne, Australia
| | - Nissim Benvenisty
- The Azrieli Center for Stem Cells and Genetic Research, Institute of Life Sciences, Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Meri Firpo
- Cell Line Development Memphis Meats, Berkeley, California, USA.,University of Minnesota, Minneapolis, Minnesota, USA
| | - Peter W Harrison
- European Bioinformatics Institute (EMBL-EBI), Cambridge, United Kingdom
| | - Shin Kawamata
- Foundation for Biological Research and Innovation (FBRI), Kobe, Japan
| | - Eihachiro Kawase
- Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - Andreas Kurtz
- Berlin-Brandenburg Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jeanne F Loring
- Center for Regenerative Medicine, Department of Chemical Physiology, The Scripps Research Institute, La Jolla, California, USA
| | - Tenneille Ludwig
- WiCell Research Institute, WiCell Stem Cell Bank, Madison, Wisconsin, USA
| | - Jennifer Man
- UK Stem Cell Bank, National Institute for Biological Standards and Control, South Mimms, United Kingdom.,Adaptimmune Ltd., Abingdon, United Kingdom
| | - Joanne C Mountford
- Advanced Therapeutics, Scottish National Blood Transfusion Service, Edinburgh, United Kingdom
| | - Marc L Turner
- Advanced Therapeutics, Scottish National Blood Transfusion Service, Edinburgh, United Kingdom.,Cell & Gene Therapy Catapult, Guy's Hospital, London, United Kingdom.,The Jack Copland Centre, Global Alliance for iPSC Therapies (GAiT), Edinburgh, United Kingdom
| | - Steve Oh
- National Laboratory for Embryonic Stem Cells (LaNCE), Department of Genetics and Evolutionary Biology, Biosciences Institute, University of São Paulo, São Paulo, Brazil
| | - Lygia da Veiga Pereira
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul. Stem Cell Research Institute, Porto Alegre, Brazil
| | - Patricia Pranke
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, New Jersey, USA
| | - Michael Sheldon
- Roslin Innovation Centre, Censo Biotechnologies Ltd, Midlothian, United Kingdom
| | - Rachel Steeg
- Stem Cell Group, Bioprocessing Technology Institute, Singapore, Singapore
| | - Stephen Sullivan
- The Jack Copland Centre, Global Alliance for iPSC Therapies (GAiT), Edinburgh, United Kingdom
| | - Michael Yaffe
- New York Stem Cell Foundation, New York, New York, USA
| | - Qi Zhou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Glyn N Stacey
- International Stem Cell Banking Initiative, Royston, United Kingdom
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23
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Affiliation(s)
- Ágata Paim
- Universidade Federal do Rio Grande do Sul, Brasil; Universidade Federal do Rio Grande do Sul, Brasil
| | | | - Patricia Pranke
- Universidade Federal do Rio Grande do Sul, Brasil; Stem Cell Research Institute, Brasil
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24
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Dos Santos FP, Peruch T, Katami SJV, Martini APR, Crestani TA, Quintiliano K, Maurmann N, Sanches EF, Netto CA, Pranke P, de Souza Pagnussat A. Poly (lactide-co-glycolide) (PLGA) Scaffold Induces Short-term Nerve Regeneration and Functional Recovery Following Sciatic Nerve Transection in Rats. Neuroscience 2018; 396:94-107. [PMID: 30452974 DOI: 10.1016/j.neuroscience.2018.11.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/06/2018] [Accepted: 11/08/2018] [Indexed: 01/27/2023]
Abstract
Peripheral nerve injury is an important cause of incapability and has limited available treatment. Autologous donor nerve implant is the golden standard treatment, however, may cause secondary deficits. Stem cells show positive results in preclinical settings, preserving tissue and function. We tested the efficacy of stem cells derived from human exfoliated deciduous teeth seeded in poly (lactide-co-glycolide) scaffolds in sciatic nerve transection model. Seventy-two adult male Wistar rats had 7-mm nerve gap bridge using scaffolds with (or without) stem cells. Animals were randomly divided into: sham-operated; sham-operated without scaffold; sham-operated + scaffold + stem cells; sciatic transection + no treatment; sciatic transection + acellular scaffolds; sciatic transection + scaffold + stem cells. Sciatic Functional Index and Ladder Rung Walking tests were performed before (-1), 14 and 28 days after surgery. Morphometric nerve measurement and muscle weights were assessed. Scaffolds with stem cells improved function in Sciatic Functional Index. Acellular scaffold was effective, promoting functional recovery and nerve regeneration following nerve injury. Scaffolds provide better nerve regeneration and functional recovery after sciatic transection. Despite cell therapy promoting faster recovery after sciatic transection in the Sciatic Index Score, stem cells did not improve functional and morphological recovery after nerve injury. This is the first study testing the potential use of scaffolds combined with stem cells in the early stages after injury. Scaffolds with stem cells could accelerate nerve recovery and favor adjuvant therapies, evidencing the need for further studies to increase the knowledge about stem cells' mechanisms.
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Affiliation(s)
- Franciele Pereira Dos Santos
- Post-graduation Program in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | - Thais Peruch
- Department of Physical Therapy, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
| | | | - Ana Paula Rodrigues Martini
- Post-graduation Program in Neuroscience, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Thayane Antoniolli Crestani
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Post-graduation Program in Neuroscience, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Kerlin Quintiliano
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Post-graduation Program in Neuroscience, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Natasha Maurmann
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Post-graduation Program in Physiology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Eduardo Farias Sanches
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil; Post-graduation Program in Neuroscience, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil.
| | - Carlos Alexandre Netto
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Post-graduation Program in Physiology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil; Stem Cell Research Institute (SCRI), Porto Alegre, RS, Brazil
| | - Aline de Souza Pagnussat
- Post-graduation Program in Rehabilitation Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil; Department of Physical Therapy, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil; Post-graduation Program in Health Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Brazil
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25
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Paim Á, Tessaro IC, Pranke P, Cardozo NSM. A sensitivity analysis for tissue development by varying model parameters and input variables. CAN J CHEM ENG 2018. [DOI: 10.1002/cjce.23171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ágata Paim
- Department of Chemical Engineering; Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert; s/n. Porto Alegre Rio Grande do Sul 90040-040 Brazil
| | - Isabel C. Tessaro
- Department of Chemical Engineering; Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert; s/n. Porto Alegre Rio Grande do Sul 90040-040 Brazil
| | - Patricia Pranke
- Faculty of Pharmacy; Universidade Federal do Rio Grande do Sul (UFRGS); Av. Ipiranga, 2752. Porto Alegre Rio Grande do Sul 90610-000 Brazil
- Stem Cell Research Institute; Porto Alegre; Rio Grande do Sul Brazil
| | - Nilo S. M. Cardozo
- Department of Chemical Engineering; Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert; s/n. Porto Alegre Rio Grande do Sul 90040-040 Brazil
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26
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Reis KP, Sperling LE, Teixeira C, Paim Á, Alcântara B, Vizcay-Barrena G, Fleck RA, Pranke P. Application of PLGA/FGF-2 coaxial microfibers in spinal cord tissue engineering: an in vitro and in vivo investigation. Regen Med 2018; 13:785-801. [DOI: 10.2217/rme-2018-0060] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Aim: Scaffolds are a promising approach for spinal cord injury (SCI) treatment. FGF-2 is involved in tissue repair but is easily degradable and presents collateral effects in systemic administration. In order to address the stability issue and avoid the systemic effects, FGF-2 was encapsulated into core–shell microfibers by coaxial electrospinning and its in vitro and in vivo potential were studied. Materials & methods: The fibers were characterized by physicochemical and biological parameters. The scaffolds were implanted in a hemisection SCI rat model. Locomotor test was performed weekly for 6 weeks. After this time, histological analyses were performed and expression of nestin and GFAP was quantified by flow cytometry. Results: Electrospinning resulted in uniform microfibers with a core–shell structure, with a sustained liberation of FGF-2 from the fibers. The fibers supported PC12 cells adhesion and proliferation. Implanted scaffolds into SCI promoted locomotor recovery at 28 days after injury and reduced GFAP expression. Conclusion: These results indicate the potential of these microfibers in SCI tissue engineering. [Formula: see text]
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Affiliation(s)
- Karina P Reis
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federale do Rio Grande do Sul, Porto Alegre, RS, 90610-000, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
- Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| | - Laura E Sperling
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federale do Rio Grande do Sul, Porto Alegre, RS, 90610-000, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| | - Cristian Teixeira
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federale do Rio Grande do Sul, Porto Alegre, RS, 90610-000, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| | - Ágata Paim
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federale do Rio Grande do Sul, Porto Alegre, RS, 90610-000, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| | - Bruno Alcântara
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federale do Rio Grande do Sul, Porto Alegre, RS, 90610-000, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
| | - Gema Vizcay-Barrena
- Centre for Ultrastructural Imaging, King’s College London, London, WC2R 2LS, UK
| | - Roland A Fleck
- Centre for Ultrastructural Imaging, King’s College London, London, WC2R 2LS, UK
| | - Patricia Pranke
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federale do Rio Grande do Sul, Porto Alegre, RS, 90610-000, Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
- Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, 90050-170, Brazil
- Stem Cell Research Institute, Porto Alegre, RS, 90020-10, Brazil
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27
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Sanches EF, Valentim L, de Almeida Sassi F, Bernardi L, Arteni N, Weis SN, Odorcyk FK, Pranke P, Netto CA. Intracardiac Injection of Dental Pulp Stem Cells After Neonatal Hypoxia-Ischemia Prevents Cognitive Deficits in Rats. Neurochem Res 2018; 43:2268-2276. [PMID: 30255215 DOI: 10.1007/s11064-018-2647-z] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 09/05/2018] [Accepted: 09/19/2018] [Indexed: 12/22/2022]
Abstract
Neonatal hypoxia-ischemia (HI) is associated to cognitive and motor impairments and until the moment there is no proven treatment. The underlying neuroprotective mechanisms of stem cells are partially understood and include decrease in excitotoxicity, apoptosis and inflammation suppression. This study was conducted in order to test the effects of intracardiac transplantation of human dental pulp stem cells (hDPSCs) for treating HI damage. Seven-day-old Wistar rats were divided into four groups: sham-saline, sham-hDPSCs, HI-saline, and HI-hDPSCs. Motor and cognitive tasks were performed from postnatal day 30. HI-induced cognitive deficits in the novel-object recognition test and in spatial reference memory impairment which were prevented by hDPSCs. No motor impairments were observed in HI animals. Immunofluorescence analysis showed human-positive nuclei in hDPSC-treated animals closely associated with anti-GFAP staining in the lesion scar tissue, suggesting that these cells were able to migrate to the injury site and could be providing support to CNS cells. Our study evidence novel evidence that hDPSC can contribute to the recovery following hypoxia-ischemia and highlight the need of further investigation in order to better understand the exact mechanisms underlying its neuroprotective effects.
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Affiliation(s)
- Eduardo Farias Sanches
- Brain Ischemia and Neuroprotection Laboratory, Departament of Biochemistry, Universidade Federal do Rio Grande do Sul, Av. Ramiro Barcelos, 2600, Porto Alegre, RS, CEP 91035-003, Brazil.
| | - Lauren Valentim
- Haematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Brain Ischemia and Neuroprotection Laboratory, Departament of Biochemistry, Universidade Federal do Rio Grande do Sul, Av. Ramiro Barcelos, 2600, Porto Alegre, RS, CEP 91035-003, Brazil
| | - Felipe de Almeida Sassi
- Haematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Brain Ischemia and Neuroprotection Laboratory, Departament of Biochemistry, Universidade Federal do Rio Grande do Sul, Av. Ramiro Barcelos, 2600, Porto Alegre, RS, CEP 91035-003, Brazil
| | - Lisiane Bernardi
- Haematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Nice Arteni
- Brain Ischemia and Neuroprotection Laboratory, Departament of Biochemistry, Universidade Federal do Rio Grande do Sul, Av. Ramiro Barcelos, 2600, Porto Alegre, RS, CEP 91035-003, Brazil
| | - Simone Nardin Weis
- Brain Ischemia and Neuroprotection Laboratory, Departament of Biochemistry, Universidade Federal do Rio Grande do Sul, Av. Ramiro Barcelos, 2600, Porto Alegre, RS, CEP 91035-003, Brazil
| | - Felipe Kawa Odorcyk
- Brain Ischemia and Neuroprotection Laboratory, Departament of Biochemistry, Universidade Federal do Rio Grande do Sul, Av. Ramiro Barcelos, 2600, Porto Alegre, RS, CEP 91035-003, Brazil
| | - Patricia Pranke
- Haematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Stem Cell Research Institute, Porto Alegre, Brazil
| | - Carlos Alexandre Netto
- Brain Ischemia and Neuroprotection Laboratory, Departament of Biochemistry, Universidade Federal do Rio Grande do Sul, Av. Ramiro Barcelos, 2600, Porto Alegre, RS, CEP 91035-003, Brazil
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28
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Paim Á, Tessaro IC, Cardozo NSM, Pranke P. Mesenchymal stem cell cultivation in electrospun scaffolds: mechanistic modeling for tissue engineering. J Biol Phys 2018; 44:245-271. [PMID: 29508186 PMCID: PMC6082795 DOI: 10.1007/s10867-018-9482-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 01/19/2018] [Indexed: 12/17/2022] Open
Abstract
Tissue engineering is a multidisciplinary field of research in which the cells, biomaterials, and processes can be optimized to develop a tissue substitute. Three-dimensional (3D) architectural features from electrospun scaffolds, such as porosity, tortuosity, fiber diameter, pore size, and interconnectivity have a great impact on cell behavior. Regarding tissue development in vitro, culture conditions such as pH, osmolality, temperature, nutrient, and metabolite concentrations dictate cell viability inside the constructs. The effect of different electrospun scaffold properties, bioreactor designs, mesenchymal stem cell culture parameters, and seeding techniques on cell behavior can be studied individually or combined with phenomenological modeling techniques. This work reviews the main culture and scaffold factors that affect tissue development in vitro regarding the culture of cells inside 3D matrices. The mathematical modeling of the relationship between these factors and cell behavior inside 3D constructs has also been critically reviewed, focusing on mesenchymal stem cell culture in electrospun scaffolds.
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Affiliation(s)
- Ágata Paim
- Department of Chemical Engineering, Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert, s/n, Porto Alegre, Rio Grande do Sul, 90040-040, Brazil.
| | - Isabel C Tessaro
- Department of Chemical Engineering, Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert, s/n, Porto Alegre, Rio Grande do Sul, 90040-040, Brazil
| | - Nilo S M Cardozo
- Department of Chemical Engineering, Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert, s/n, Porto Alegre, Rio Grande do Sul, 90040-040, Brazil
| | - Patricia Pranke
- Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752, Porto Alegre, Rio Grande do Sul, 90610-000, Brazil
- Stem Cell Research Institute, Porto Alegre, Rio Grande do Sul, 90020-010, Brazil
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29
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Nicola F, Marques MR, Odorcyk F, Petenuzzo L, Aristimunha D, Vizuete A, Sanches EF, Pereira DP, Maurmann N, Gonçalves CA, Pranke P, Netto CA. Correction to: Stem Cells from Human Exfoliated Deciduous Teeth Modulate Early Astrocyte Response after Spinal Cord Contusion. Mol Neurobiol 2018; 56:761-762. [PMID: 29909452 DOI: 10.1007/s12035-018-1190-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The authors hereby declare that the Figure 4 in page eight of the paper "Stem cells from human exfoliated deciduous teeth modulate early astrocyte response after spinal cord contusion" authored by Fabrício Nicola and colleagues (DOI: 10.1007/s12035-018-1127-4) was mistakenly included.
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Affiliation(s)
- Fabrício Nicola
- Post Graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil.
| | - Marília Rossato Marques
- Post Graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Felipe Odorcyk
- Post Graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Letícia Petenuzzo
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Dirceu Aristimunha
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Adriana Vizuete
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Eduardo Farias Sanches
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Daniela Pavulack Pereira
- Hematology and Stem Cell Laboratory, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Natasha Maurmann
- Hematology and Stem Cell Laboratory, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Carlos-Alberto Gonçalves
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Research Institute, Porto Alegre, Brazil
| | - Carlos Alexandre Netto
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
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30
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Nicola F, Marques MR, Odorcyk F, Petenuzzo L, Aristimunha D, Vizuete A, Sanches EF, Pereira DP, Maurmann N, Gonçalves CA, Pranke P, Netto CA. Stem Cells from Human Exfoliated Deciduous Teeth Modulate Early Astrocyte Response after Spinal Cord Contusion. Mol Neurobiol 2018; 56:748-760. [PMID: 29796991 DOI: 10.1007/s12035-018-1127-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [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: 02/25/2018] [Accepted: 05/11/2018] [Indexed: 12/19/2022]
Abstract
The transplantation of stem cells from human exfoliated deciduous teeth (SHED) has been studied as a possible treatment strategy for spinal cord injuries (SCIs) due to its potential for promoting tissue protection and functional recovery. The aim of the present study was to investigate the effects of the early transplantation of SHED on glial scar formation and astrocytic reaction after an experimental model of SCI. Wistar rats were spinalized using the NYU Impactor. Animals were randomly distributed into three groups: control (naive) (animal with no manipulation); SCI (receiving laminectomy followed by SCI and treated with vehicle), and SHED (SCI rat treated with intraspinal SHED transplantation, 1 h after SCI). In vitro investigation demonstrated that SHED were able to express mesenchymal stem cells, vimentin and S100B markers, related with neural progenitor and glial cells, respectively. The acute SHED transplantation promoted functional recovery, measured as from the first week after spinal cord contusion by Basso, Beattie, and Bresnahan scale. Twenty-four and 48 h after lesion, flow cytometry revealed a spinal cord vimentin+ cells increment in the SHED group. The increase of vimentin+ cells was confirmed by immunofluorescence. Moreover, the bioavailability of astrocytic proteins such as S100B and Kir4.1 shown to be increased in the spinal cord of SHED group, whereas there was a glial scar reduction, as indicated by ELISA and Western blot techniques. The presented results support that SHED act as a neuroprotector agent after transplantation, probably through paracrine signaling to reduce glial scar formation, inducing tissue plasticity and functional recovery.
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Affiliation(s)
- Fabrício Nicola
- Post Graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil. .,Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil.
| | - Marília Rossato Marques
- Post Graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Felipe Odorcyk
- Post Graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Letícia Petenuzzo
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Dirceu Aristimunha
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Adriana Vizuete
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Eduardo Farias Sanches
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Daniela Pavulack Pereira
- Hematology and Stem Cell Laboratory, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Natasha Maurmann
- Hematology and Stem Cell Laboratory, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Carlos-Alberto Gonçalves
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Post Graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.,Stem Cell Research Institute, Porto Alegre, Brazil
| | - Carlos Alexandre Netto
- Department of Biochemistry, Institute of Basic Health Sciences, Universidade Federal do Rio Grande do Sul, R. Ramiro Barcelos, 2600 anexo, Porto Alegre, Rio Grande do Sul, 90035-003, Brazil
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31
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Paim Á, Cardozo NSM, Tessaro IC, Pranke P. Relevant biological processes for tissue development with stem cells and their mechanistic modeling: A review. Math Biosci 2018; 301:147-158. [PMID: 29746816 DOI: 10.1016/j.mbs.2018.05.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [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: 06/02/2017] [Revised: 04/27/2018] [Accepted: 05/04/2018] [Indexed: 02/07/2023]
Abstract
A potential alternative for tissue transplants is tissue engineering, in which the interaction of cells and biomaterials can be optimized. Tissue development in vitro depends on the complex interaction of several biological processes such as extracellular matrix synthesis, vascularization and cell proliferation, adhesion, migration, death, and differentiation. The complexity of an individual phenomenon or of the combination of these processes can be studied with phenomenological modeling techniques. This work reviews the main biological phenomena in tissue development and their mathematical modeling, focusing on mesenchymal stem cell growth in three-dimensional scaffolds.
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Affiliation(s)
- Ágata Paim
- Department of Chemical Engineering, Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert, s/n Porto Alegre, Rio Grande do Sul 90040-040, Brazil; Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752. Porto Alegre, Rio Grande do Sul 90610-000, Brazil.
| | - Nilo S M Cardozo
- Department of Chemical Engineering, Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert, s/n Porto Alegre, Rio Grande do Sul 90040-040, Brazil
| | - Isabel C Tessaro
- Department of Chemical Engineering, Universidade Federal do Rio Grande do Sul (UFRGS), R. Eng. Luis Englert, s/n Porto Alegre, Rio Grande do Sul 90040-040, Brazil
| | - Patricia Pranke
- Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Ipiranga, 2752. Porto Alegre, Rio Grande do Sul 90610-000, Brazil; Stem Cell Research Institute, Porto Alegre, Rio Grande do Sul, Brazil
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32
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Werle SB, Chagastelles P, Pranke P, Casagrande L. Hypoxia upregulates the expression of the pluripotency markers in the stem cells from human deciduous teeth. Clin Oral Investig 2018; 23:199-207. [DOI: 10.1007/s00784-018-2427-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 03/19/2018] [Indexed: 12/28/2022]
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Paim A, Braghirolli DI, Cardozo NSM, Pranke P, Tessaro IC. Human dental pulp stem cell adhesion and detachment in polycaprolactone electrospun scaffolds under direct perfusion. ACTA ACUST UNITED AC 2018; 51:e6754. [PMID: 29590258 PMCID: PMC5886556 DOI: 10.1590/1414-431x20186754] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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: 09/12/2017] [Accepted: 01/11/2018] [Indexed: 11/22/2022]
Abstract
Cell adhesion in three-dimensional scaffolds plays a key role in tissue development. However, stem cell behavior in electrospun scaffolds under perfusion is not fully understood. Thus, an investigation was made on the effect of flow rate and shear stress, adhesion time, and seeding density under direct perfusion in polycaprolactone electrospun scaffolds on human dental pulp stem cell detachment. Polycaprolactone scaffolds were electrospun using a solvent mixture of chloroform and methanol. The viable cell number was determined at each tested condition. Cell morphology was analyzed by confocal microscopy after various incubation times for static cell adhesion with a high seeding density. Scanning electron microscopy images were obtained before and after perfusion for the highest flow rate tested. The wall pore shear stress was calculated for all tested flow rates (0.005–3 mL/min). An inversely proportional relationship between adhesion time with cell detachment under perfusion was observed. Lower flow rates and lower seeding densities reduced the drag of cells by shear stress. However, there was an operational limit for the lowest flow rate that can be used without compromising cell viability, indicating that a flow rate of 0.05 mL/min might be more suitable for the tested cell culture in electrospun scaffolds under direct perfusion.
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Affiliation(s)
- A Paim
- Laboratório de Separação por Membranas, Departamento de Engenharia Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Laboratório de Simulação, Departamento de Engenharia Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Laboratório de Hematologia e Células-Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - D I Braghirolli
- Laboratório de Hematologia e Células-Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - N S M Cardozo
- Laboratório de Simulação, Departamento de Engenharia Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - P Pranke
- Laboratório de Hematologia e Células-Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Instituto de Pesquisa com Células-Tronco, Porto Alegre, RS, Brasil
| | - I C Tessaro
- Laboratório de Separação por Membranas, Departamento de Engenharia Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
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Kim JH, Kurtz A, Yuan BZ, Zeng F, Lomax G, Loring JF, Crook J, Ju JH, Clarke L, Inamdar MS, Pera M, Firpo MT, Sheldon M, Rahman N, O'Shea O, Pranke P, Zhou Q, Isasi R, Rungsiwiwut R, Kawamata S, Oh S, Ludwig T, Masui T, Novak TJ, Takahashi T, Fujibuchi W, Koo SK, Stacey GN. Report of the International Stem Cell Banking Initiative Workshop Activity: Current Hurdles and Progress in Seed-Stock Banking of Human Pluripotent Stem Cells. Stem Cells Transl Med 2017; 6:1956-1962. [PMID: 29067781 PMCID: PMC6430055 DOI: 10.1002/sctm.17-0144] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 07/18/2017] [Indexed: 12/14/2022] Open
Abstract
This article summarizes the recent activity of the International Stem Cell Banking Initiative (ISCBI) held at the California Institute for Regenerative Medicine (CIRM) in California (June 26, 2016) and the Korean National Institutes for Health in Korea (October 19-20, 2016). Through the workshops, ISCBI is endeavoring to support a new paradigm for human medicine using pluripotent stem cells (hPSC) for cell therapies. Priority considerations for ISCBI include ensuring the safety and efficacy of a final cell therapy product and quality assured source materials, such as stem cells and primary donor cells. To these ends, ISCBI aims to promote global harmonization on quality and safety control of stem cells for research and the development of starting materials for cell therapies, with regular workshops involving hPSC banking centers, biologists, and regulatory bodies. Here, we provide a brief overview of two such recent activities, with summaries of key issues raised. Stem Cells Translational Medicine 2017;6:1956-1962.
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Affiliation(s)
- Jung-Hyun Kim
- Korea Stem Cell Bank, Center for Biomedical Sciences, Korea National Institute of Health (KNIH), Osong, South Korea
| | | | - Bao-Zhu Yuan
- Cell Collection and Research Center, National Institutes for Food and Drug Control, Beijing, China
| | - Fanyi Zeng
- Shanghai Institute of Medical Genetics, Shanghai Jiao Tong University, Shanghai, China
| | - Geoff Lomax
- California Institute for Regenerative Medicine, Oakland, CA, USA
| | - Jeanne F Loring
- Department of Molecular Medicine Center for Regenerative Medicine The Scripps Research Institute, San Diego, CA, USA
| | - Jeremy Crook
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, University of Wollongong, Fairy Meadow, New South Wales, Australia.,Illawarra Health and Medical Research Institute, University of Wollongong, Wollongong, New South Wales, Australia.,Department of Surgery, St. Vincent's Hospital, The University of Melbourne, Fitzroy, Victoria, Australia
| | | | - Laura Clarke
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Maneesha S Inamdar
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore, India
| | | | - Meri T Firpo
- Stem Cell Institute and Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - Michael Sheldon
- Department of Genetics, Rutgers, The State University of New Jersey, Piscataway, NJ
| | | | - Orla O'Shea
- UK Stem Cell Bank, Division of Advanced Therapies, NIBSC, South Mimms, UK
| | - Patricia Pranke
- Stem Cell Research Institute, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Qi Zhou
- Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Rosario Isasi
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ruttachuk Rungsiwiwut
- Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Shin Kawamata
- Foundation for Biomedical Research and Innovation, Kobe, Japan
| | - Steve Oh
- Stem Cell Group, Bioprocessing Technology Institute, A*STAR, Singapore
| | | | | | | | | | - Wataru Fujibuchi
- Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Soo Kyung Koo
- Korea Stem Cell Bank, Center for Biomedical Sciences, Korea National Institute of Health (KNIH), Osong, South Korea
| | - Glyn N Stacey
- UK Stem Cell Bank, Division of Advanced Therapies, NIBSC, South Mimms, UK
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35
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Steffens D, Mathor MB, Soster PRDL, Vergani G, Luco DP, Pranke P. Treatment of a burn animal model with functionalized tridimensional electrospun biomaterials. J Biomater Appl 2017; 32:663-676. [PMID: 28992774 DOI: 10.1177/0885328217735933] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 12/22/2022]
Abstract
Laminin-functionalized poly-d,l-lactic acid scaffolds were produced. Following this, mesenchymal stem cells and keratinocytes were seeded on biomaterials for the in vivo experiments, where the biomaterials with or without cells were implanted. The analysis is comprised of the visual aspect and mean size of the lesion plus the histology and gene expression. The results showed that the cells occupied all the structure of the scaffolds in all the groups. After nine days of in vivo experiments, the defect size did not show statistical difference among the groups, although the groups with the poly-d,l-lactic acid/Lam biomaterial had the lowest lesion size and presented the best visual aspect of the wound. Gene expression analysis showed considerable increase of tumor growth factor beta 1 expression, increased vascular endothelial growth factor and balance of the BAX/Bcl-2 ratio when compared to the lesion group. Histological analysis showed well-formed tissue in the groups where the biomaterials and biomaterials plus cells were used. In some animals, in which biomaterials and cells were used, the epidermis was formed throughout the length of the wound. In conclusion, these biomaterials were found to be capable of providing support for the growth of cells and stimulated the healing of the skin, which was improved by the use of cells.
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Affiliation(s)
- Daniela Steffens
- 1 Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, RS, Brazil.,2 Post-graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Brazil
| | - Monica Beatriz Mathor
- 3 119500 Instituto de Pesquisas Energéticas e Nucleares - Institute of Nuclear Energy Research (IPEN), SP, Brazil
| | - Paula Rigon da Luz Soster
- 4 Morphological Science Department, Universidade Federal do Rio Grande do Sul Porto Alegre, RS Brazil
| | | | - Dayane Piffer Luco
- 6 Stem Cell Research Institute- Instituto de Pesquisa com Células-tronco. Porto Alegre, RS, Brazil
| | - Patricia Pranke
- 1 Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, RS, Brazil.,2 Post-graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Brazil.,6 Stem Cell Research Institute- Instituto de Pesquisa com Células-tronco. Porto Alegre, RS, Brazil
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Rosa AR, Steffens D, Santi B, Quintiliano K, Steffen N, Pilger DA, Pranke P. Development of VEGF-loaded PLGA matrices in association with mesenchymal stem cells for tissue engineering. ACTA ACUST UNITED AC 2017; 50:e5648. [PMID: 28793048 PMCID: PMC5572844 DOI: 10.1590/1414-431x20175648] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 10/18/2016] [Accepted: 04/24/2017] [Indexed: 11/21/2022]
Abstract
The association of bioactive molecules, such as vascular endothelial growth factor
(VEGF), with nanofibers facilitates their controlled release, which could contribute
to cellular migration and differentiation in tissue regeneration. In this research,
the influence of their incorporation on a polylactic-co-glycolic acid (PLGA) scaffold
produced by electrospinning on cell adhesion and viability and cytotoxicity was
carried out in three groups: 1) PLGA/BSA/VEGF; 2) PLGA/BSA, and 3) PLGA. Morphology,
fiber diameter, contact angle, loading efficiency and controlled release of VEGF of
the biomaterials, among others, were measured. The nanofibers showed smooth surfaces
without beads and with interconnected pores. PLGA/BSA/VEGF showed the smallest water
contact angle and VEGF released for up to 160 h. An improvement in cell adhesion was
observed for the PLGA/BSA/VEGF scaffolds compared to the other groups and the
scaffolds were non-toxic for the cells. Therefore, the scaffolds were shown to be a
good strategy for sustained delivery of VEGF and may be a useful tool for tissue
engineering.
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Affiliation(s)
- A R Rosa
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-graduação em Ciência dos Materiais, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - D Steffens
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-graduação em Ciências Biológicas: Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - B Santi
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - K Quintiliano
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-graduação em Ciências Biológicas: Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - N Steffen
- Irmandade Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brasil
| | - D A Pilger
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - P Pranke
- Laboratório de Hematologia e Células Tronco, Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-graduação em Ciência dos Materiais, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Programa de Pós-graduação em Ciências Biológicas: Fisiologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Instituto de Pesquisa com Células-Tronco, Porto Alegre, RS, Brasil
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Siqueira RL, Maurmann N, Burguêz D, Pereira DP, Rastelli AN, Peitl O, Pranke P, Zanotto ED. Bioactive gel-glasses with distinctly different compositions: Bioactivity, viability of stem cells and antibiofilm effect against Streptococcus mutans. Materials Science and Engineering: C 2017; 76:233-241. [DOI: 10.1016/j.msec.2017.03.056] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/23/2016] [Accepted: 03/07/2017] [Indexed: 10/20/2022]
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Maurmann N, Pereira DP, Burguez D, de S Pereira FDA, Inforçatti Neto P, Rezende RA, Gamba D, da Silva JVL, Pranke P. Mesenchymal stem cells cultivated on scaffolds formed by 3D printed PCL matrices, coated with PLGA electrospun nanofibers for use in tissue engineering. Biomed Phys Eng Express 2017. [DOI: 10.1088/2057-1976/aa6308] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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39
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Nicola FC, Rodrigues LP, Crestani T, Quintiliano K, Sanches EF, Willborn S, Aristimunha D, Boisserand L, Pranke P, Netto CA. Human dental pulp stem cells transplantation combined with treadmill training in rats after traumatic spinal cord injury. ACTA ACUST UNITED AC 2017; 49:e5319. [PMID: 27509306 PMCID: PMC4988478 DOI: 10.1590/1414-431x20165319] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [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: 03/03/2016] [Accepted: 06/13/2016] [Indexed: 01/09/2023]
Abstract
Spinal cord injury (SCI) is a disabling condition resulting in deficits of sensory and motor functions, and has no effective treatment. Considering that protocols with stem cell transplantation and treadmill training have shown promising results, the present study evaluated the effectiveness of stem cells from human exfoliated deciduous teeth (SHEDs) transplantation combined with treadmill training in rats with experimental spinal cord injury. Fifty-four Wistar rats were spinalized using NYU impactor. The rats were randomly distributed into 5 groups: Sham (laminectomy with no SCI, n=10); SCI (laminectomy followed by SCI, n=12); SHEDs (SCI treated with SHEDs, n=11); TT (SCI treated with treadmill training, n=11); SHEDs+TT (SCI treated with SHEDs and treadmill training; n=10). Treatment with SHEDs alone or in combination with treadmill training promoted functional recovery, reaching scores of 15 and 14, respectively, in the BBB scale, being different from the SCI group, which reached 11. SHEDs treatment was able to reduce the cystic cavity area and glial scar, increase neurofilament. Treadmill training alone had no functional effectiveness or tissue effects. In a second experiment, the SHEDs transplantation reduced the TNF-α levels in the cord tissue measured 6 h after the injury. Contrary to our hypothesis, treadmill training either alone or in combination, caused no functional improvement. However, SHEDs showed to be neuroprotective, by the reduction of TNF-α levels, the cystic cavity and the glial scar associated with the improvement of motor function after SCI. These results provide evidence that grafted SHEDs might be an effective therapy to spinal cord lesions, with possible anti-inflammatory action.
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Affiliation(s)
- F C Nicola
- Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - L P Rodrigues
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - T Crestani
- Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Laboratório de Hematologia e Célula Tronco, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - K Quintiliano
- Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Laboratório de Hematologia e Célula Tronco, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - E F Sanches
- Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - S Willborn
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - D Aristimunha
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - L Boisserand
- Programa de Pós-Graduação em Neurociências, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - P Pranke
- Laboratório de Hematologia e Célula Tronco, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil.,Instituto de Pesquisas com Células Tronco, Porto Alegre, RS, Brasil
| | - C A Netto
- Departamento de Bioquímica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
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Braghirolli DI, Helfer VE, Chagastelles PC, Dalberto TP, Gamba D, Pranke P. Electrospun scaffolds functionalized with heparin and vascular endothelial growth factor increase the proliferation of endothelial progenitor cells. Biomed Mater 2017; 12:025003. [DOI: 10.1088/1748-605x/aa5bbc] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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41
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Sperling LE, Reis KP, Pozzobon LG, Girardi CS, Pranke P. Influence of random and oriented electrospun fibrous poly(lactic-co
-glycolic acid) scaffolds on neural differentiation of mouse embryonic stem cells. J Biomed Mater Res A 2017; 105:1333-1345. [DOI: 10.1002/jbm.a.36012] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 01/13/2017] [Accepted: 01/19/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Laura E. Sperling
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Av. Ipiranga 2752, room 304G, Federal University of Rio Grande do Sul Porto Alegre RS Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute; Rua Sarmento Leite, 500, Federal University of Rio Grande do Sul Porto Alegre RS Brazil
| | - Karina P. Reis
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Av. Ipiranga 2752, room 304G, Federal University of Rio Grande do Sul Porto Alegre RS Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute; Rua Sarmento Leite, 500, Federal University of Rio Grande do Sul Porto Alegre RS Brazil
- Post Graduate Program in Physiology, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Laura G. Pozzobon
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Av. Ipiranga 2752, room 304G, Federal University of Rio Grande do Sul Porto Alegre RS Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute; Rua Sarmento Leite, 500, Federal University of Rio Grande do Sul Porto Alegre RS Brazil
| | - Carolina S. Girardi
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Av. Ipiranga 2752, room 304G, Federal University of Rio Grande do Sul Porto Alegre RS Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Av. Ipiranga 2752, room 304G, Federal University of Rio Grande do Sul Porto Alegre RS Brazil
- Stem Cell Laboratory, Fundamental Health Science Institute; Rua Sarmento Leite, 500, Federal University of Rio Grande do Sul Porto Alegre RS Brazil
- Stem Cell Research Institute; Porto Alegre RS Brazil
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Quintiliano K, Crestani T, Silveira D, Helfer VE, Rosa A, Balbueno E, Steffens D, Jotz GP, Pilger DA, Pranke P. Neural Differentiation of Mesenchymal Stem Cells on Scaffolds for Nerve Tissue Engineering Applications. Cell Reprogram 2016; 18:369-381. [DOI: 10.1089/cell.2016.0024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Affiliation(s)
- Kerlin Quintiliano
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Post-graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Thayane Crestani
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Post-graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Davi Silveira
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Annelise Rosa
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Post-graduate Program in Material Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Eduardo Balbueno
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Daniela Steffens
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Post Graduate Program in Biological Science: Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Centro Universitário Ritter dos Reis—UniRitter
| | - Geraldo Pereira Jotz
- Post-graduate Program in Neuroscience, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Department of Morphological Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Diogo André Pilger
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Post-graduate Program in Material Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Post Graduate Program in Biological Science: Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
- Stem Cell Research Institute. Porto Alegre, Brazil
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Galuppo AG, Chagastelles PC, Gamba D, Iglesias DB, Sperling LE, Machado J, Petry JFTC, Wendorff J, Petzhold CL, Pranke P. Effect of feeder free poly(lactide-co-glycolide) scaffolds on morphology, proliferation, and pluripotency of mouse embryonic stem cells. J Biomed Mater Res A 2016; 105:424-432. [DOI: 10.1002/jbm.a.35916] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 09/21/2016] [Accepted: 09/27/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Andrea G. Galuppo
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
- Stem Cell Laboratory; Fundamental Health Science Institute, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
- Post Graduate Program in Material Science; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Pedro C. Chagastelles
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
- Stem Cell Laboratory; Fundamental Health Science Institute, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
- Post Graduate Program in Material Science; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Douglas Gamba
- Laboratory of Organic Synthesis and Polymers; Institute of Chemistry, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Daikelly B. Iglesias
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
- Post Graduate Program in Physiology; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Laura E. Sperling
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
- Stem Cell Laboratory; Fundamental Health Science Institute, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Janine Machado
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Jéssica F. T. C. Petry
- Laboratory of Organic Synthesis and Polymers; Institute of Chemistry, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | | | - Cesar L. Petzhold
- Laboratory of Organic Synthesis and Polymers; Institute of Chemistry, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
- Stem Cell Laboratory; Fundamental Health Science Institute, Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
- Post Graduate Program in Physiology; Federal University of Rio Grande do Sul; Porto Alegre RS Brazil
- Stem Cell Research Institute; Porto Alegre RS Brazil
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Andrade JMDM, Maurmann N, Pranke P, Turatti ICC, Lopes NP, Henriques AT. Identification of compounds from non-polar fractions of Blechnum spp and a multitarget approach involving enzymatic modulation and oxidative stress. ACTA ACUST UNITED AC 2016; 69:89-98. [PMID: 27747875 DOI: 10.1111/jphp.12653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: 06/21/2016] [Accepted: 09/18/2016] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The hexane (HEX) and dichloromethane (DCM) fractions from Blechnum binervatum, Blechnum brasiliense and Blechnum occidentale were studied about phytochemicals and biological properties using multitarget approach. METHODS The chemical composition was performed by gas chromatography coupled with mass spectrometry detector (GC-MS) analysis. Antioxidant capacity was evaluated against free radicals and on lipid peroxidation. Monoamine oxidases (MAO) and cholinesterases enzymatic modulation, as well as effects on rat and human cells, were assessed. KEY FINDINGS The CG-MS analysis allowed the identification of a non-polar compound series, being neophytadiene the major constituent in all DCM fractions and in HEX fractions from B. binervatum and B. occidentale. In B. brasiliense HEX fraction, β-sitosterol was the main compound. In general, B. brasiliense DCM fraction presented the highest antioxidant activity, with IC50 values around 9, 2 and 1.2 times lower than those found for the other species, against HO˙, NO˙ and on lipid peroxidation, respectively. Regarding enzyme modulations, B. brasiliense DCM fraction presented higher MAO-A inhibition (IC50 : 31.83 μg/ml), with a better selectivity index (SI MAO-A/MAO-B: 6.77). The lack of harmful effects was observed in rat cells, also highlighted in the stem cells for all Blechnum samples. CONCLUSION These findings encourage the search for multibinding natural products, mainly from B. brasiliense DCM fraction.
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Affiliation(s)
- Juliana Maria de Mello Andrade
- Laboratory of Pharmacognosy, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Natasha Maurmann
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, UFRGS, Porto Alegre, RS, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, UFRGS, Porto Alegre, RS, Brazil.,Stem Cell Research Institute, Porto Alegre, RS, Brazil
| | | | - Norberto Peporine Lopes
- Faculty of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Amélia T Henriques
- Laboratory of Pharmacognosy, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
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Werle SB, Chagastelles P, Pranke P, Casagrande L. The effects of hypoxia on in vitro culture of dental-derived stem cells. Arch Oral Biol 2016; 68:13-20. [DOI: 10.1016/j.archoralbio.2016.03.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 03/18/2016] [Accepted: 03/20/2016] [Indexed: 12/19/2022]
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Sperling LE, Reis KP, Pranke P, Wendorff JH. Advantages and challenges offered by biofunctional core-shell fiber systems for tissue engineering and drug delivery. Drug Discov Today 2016; 21:1243-56. [PMID: 27155458 DOI: 10.1016/j.drudis.2016.04.024] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 03/22/2016] [Accepted: 04/28/2016] [Indexed: 12/27/2022]
Abstract
Whereas highly porous scaffolds composed of electrospun nanofibers can mimick major features of the extracellular matrix in tissue engineering, they lack the ability to incorporate and release biocompounds (drugs, growth factors) safely in a controlled way. Here, electrospun core-shell fibers (core made from water and aqueous solutions of hydrophilic polymers and the shell from materials with well-defined release mechanisms) offer unique advantages in comparison with those that have helped make porous nanofibrillar scaffolds highly successful in tissue engineering. This review considers the preparation and biofunctionalization of such core-shell fibers as well as applications in various areas, including neural, vascular, cardiac, cartilage and bone tissue engineering, and touches on the topic of clinical trials.
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Affiliation(s)
- Laura E Sperling
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Karina P Reis
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Post Graduate Program in Physiology, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Patricia Pranke
- Hematology and Stem Cell Laboratory, Faculty of Pharmacy, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil; Stem Cell Research Institute, Porto Alegre, RS, Brazil
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Veras FF, Roggia I, Pranke P, Pereira CN, Brandelli A. Inhibition of filamentous fungi by ketoconazole-functionalized electrospun nanofibers. Eur J Pharm Sci 2016; 84:70-6. [PMID: 26775870 DOI: 10.1016/j.ejps.2016.01.014] [Citation(s) in RCA: 22] [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: 11/28/2015] [Revised: 12/28/2015] [Accepted: 01/13/2016] [Indexed: 01/25/2023]
Abstract
Nanotechnology strategies have been used for delivery and controlled release of antimicrobial drugs. Electrospun nanofibers can be versatile vehicles to incorporate antimicrobials. In this work, poly-ε-caprolactone nanofibers functionalized with ketoconazole were produced by electrospinning and tested against filamentous fungi. Ketoconazole-free nanofibers were produced as controls. Functionalized nanofibers showed antifungal activity against Aspergillus flavus, A. carbonarius, A. niger, Aspergillus sp. A29, Fusarium oxysporum and Penicillium citrinum by agar diffusion test. Inhibitory zones ranging from 6 to 44mm were observed, this larger inhibition was against A. flavus. The nanofibers were incubated in different simulant solutions to evaluate the ketoconazole release, which was only detected in the solution containing 5% (v/v) Tween 20. Electron microscopy images showed the nanofibers with ketoconazole presented mean diameters of 526nm, and the degradation of the nanofiber structures could be observed by electron microscopy after incubation in simulant solution. Infrared and thermal analyses indicated that ketoconazole was dispersed without chemical interactions with the polycaprolactone matrix. These results suggest that polycaprolactone nanofibers incorporating ketoconazole may be an interesting alternative to control pathogenic fungi.
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Affiliation(s)
- Flávio Fonseca Veras
- Laboratório de Bioquímica e Microbiologia Aplicada, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Isabel Roggia
- Tecnano Pesquisas e Serviços Ltda., Porto Alegre, Brazil
| | - Patricia Pranke
- Faculdade de Farmácia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | | | - Adriano Brandelli
- Laboratório de Bioquímica e Microbiologia Aplicada, Instituto de Ciência e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
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Steffens D, Mathor MB, Santi BTS, Luco DP, Pranke P. Development of a biomaterial associated with mesenchymal stem cells and keratinocytes for use as a skin substitute. Regen Med 2015; 10:975-87. [PMID: 26542841 DOI: 10.2217/rme.15.58] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
AIM The present study has aimed to produce a cutaneous substitute, bringing together stem cells (mesenchymal stem cells) and keratinocytes, and an electrospun biomaterial. MATERIALS & METHODS Three groups of scaffolds were studied: group 1, poly-dl-lactic acid (PDLLA); group 2, hydrolyzed PDLLA (PDLLA/NaOH) and group 3, PDLLA/Lam - a PDLLA/NaOH scaffold linked to laminin protein. They were characterized by physicochemical and biological parameters. RESULTS As a result, the scaffolds presented well-formed and randomly distributed fibers. Group 3 showed the greatest hydrophilic characteristics. Group 1 showed a greater degradation rate after 14 days. Groups 2 and 3 presented molecular weight of about 40-50 Da. In general, group 3 showed the best results concerning cell adhesion and viability. CONCLUSION This study associated two revolutionary fields, stem cells and nanotechnology, for use in regenerative medicine.
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Affiliation(s)
- Daniela Steffens
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil.,Post-graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90050-170, Brazil
| | - Monica B Mathor
- Instituto de Pesquisas Energéticas e Nucleares, São Paulo, 05508-000, Brazil
| | - Bruna T S Santi
- Post-graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90050-170, Brazil
| | - Dayane P Luco
- Stem Cell Research Institute (Instituto de Pesquisa com Células-tronco), Porto Alegre, Rio Grande do Sul 90020-010, Brazil
| | - Patricia Pranke
- Hematology & Stem Cell Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 91501-970, Brazil.,Post-graduate Program in Physiology, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS 90050-170, Brazil.,Stem Cell Research Institute (Instituto de Pesquisa com Células-tronco), Porto Alegre, Rio Grande do Sul 90020-010, Brazil
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Andrews PW, Baker D, Benvinisty N, Miranda B, Bruce K, Brüstle O, Choi M, Choi YM, Crook JM, de Sousa PA, Dvorak P, Freund C, Firpo M, Furue MK, Gokhale P, Ha HY, Han E, Haupt S, Healy L, Hei DJ, Hovatta O, Hunt C, Hwang SM, Inamdar MS, Isasi RM, Jaconi M, Jekerle V, Kamthorn P, Kibbey MC, Knezevic I, Knowles BB, Koo SK, Laabi Y, Leopoldo L, Liu P, Lomax GP, Loring JF, Ludwig TE, Montgomery K, Mummery C, Nagy A, Nakamura Y, Nakatsuji N, Oh S, Oh SK, Otonkoski T, Pera M, Peschanski M, Pranke P, Rajala KM, Rao M, Ruttachuk R, Reubinoff B, Ricco L, Rooke H, Sipp D, Stacey GN, Suemori H, Takahashi TA, Takada K, Talib S, Tannenbaum S, Yuan BZ, Zeng F, Zhou Q. Points to consider in the development of seed stocks of pluripotent stem cells for clinical applications: International Stem Cell Banking Initiative (ISCBI). Regen Med 2015; 10:1-44. [PMID: 25675265 DOI: 10.2217/rme.14.93] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Affiliation(s)
- P W Andrews
- Department of Biomedical Science, The University of Sheffield, Sheffield, UK
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Braghirolli DI, Zamboni F, Acasigua GAX, Pranke P. Association of electrospinning with electrospraying: a strategy to produce 3D scaffolds with incorporated stem cells for use in tissue engineering. Int J Nanomedicine 2015; 10:5159-69. [PMID: 26316747 PMCID: PMC4542624 DOI: 10.2147/ijn.s84312] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [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] [Indexed: 12/27/2022] Open
Abstract
In tissue engineering, a uniform cell occupation of scaffolds is crucial to ensure the success of tissue regeneration. However, this point remains an unsolved problem in 3D scaffolds. In this study, a direct method to integrate cells into fiber scaffolds was investigated by combining the methods of electrospinning of fibers and bioelectrospraying of cells. With the associating of these methods, the cells were incorporated into the 3D scaffolds while the fibers were being produced. The scaffolds containing cells (SCCs) were produced using 20% poly(lactide-co-glycolide) solution for electrospinning and mesenchymal stem cells from deciduous teeth as a suspension for bioelectrospraying. After their production, the SCCs were cultivated for 15 days at 37°C with an atmosphere of 5% CO2. The 3-(4,5-dimethylthiazol- 2-yl)-2,5-diphenyltetrazolium bromide test demonstrated that the cells remained viable and were able to grow between the fibers. Scanning electron microscopy showed the presence of a high number of cells in the structure of the scaffolds and confocal images demonstrated that the cells were able to adapt and spread between the fibers. Histological analysis of the SCCs after 1 day of cultivation showed that the cells were uniformly distributed throughout the thickness of the scaffolds. Some physicochemical properties of the scaffolds were also investigated. SCCs exhibited good mechanical properties, compatible with their handling and further implantation. The results obtained in the present study suggest that the association of electrospinning and bioelectrospraying provides an interesting tool for forming 3D cell-integrated scaffolds, making it a viable alternative for use in tissue engineering.
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Affiliation(s)
- Daikelly Iglesias Braghirolli
- Hematology and Stem Cells Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil ; Department of Materials Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Fernanda Zamboni
- Hematology and Stem Cells Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Gerson A X Acasigua
- Hematology and Stem Cells Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil ; School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - Patricia Pranke
- Hematology and Stem Cells Laboratory, Faculty of Pharmacy, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil ; Department of Materials Science, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil ; Instituto de Pesquisas com Células-Tronco, Porto Alegre, Rio Grande do Sul, Brazil
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