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Hernandez-Montelongo J, Salazar-Araya J, Mas-Hernández E, Oliveira DS, Garcia-Sandoval JP. Unraveling Drug Delivery from Cyclodextrin Polymer-Coated Breast Implants: Integrating a Unidirectional Diffusion Mathematical Model with COMSOL Simulations. Pharmaceutics 2024; 16:486. [PMID: 38675147 PMCID: PMC11055099 DOI: 10.3390/pharmaceutics16040486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 03/11/2024] [Accepted: 03/14/2024] [Indexed: 04/28/2024] Open
Abstract
Breast cancer ranks among the most commonly diagnosed cancers worldwide and bears the highest mortality rate. As an integral component of cancer treatment, mastectomy entails the complete removal of the affected breast. Typically, breast reconstruction, involving the use of silicone implants (augmentation mammaplasty), is employed to address the aftermath of mastectomy. To mitigate postoperative risks associated with mammaplasty, such as capsular contracture or bacterial infections, the functionalization of breast implants with coatings of cyclodextrin polymers as drug delivery systems represents an excellent alternative. In this context, our work focuses on the application of a mathematical model for simulating drug release from breast implants coated with cyclodextrin polymers. The proposed model considers a unidirectional diffusion process following Fick's second law, which was solved using the orthogonal collocation method, a numerical technique employed to approximate solutions for ordinary and partial differential equations. We conducted simulations to obtain release profiles for three therapeutic molecules: pirfenidone, used for preventing capsular contracture; rose Bengal, an anticancer agent; and the antimicrobial peptide KR-12. Furthermore, we calculated the diffusion profiles of these drugs through the cyclodextrin polymers, determining parameters related to diffusivity, solute solid-liquid partition coefficients, and the Sherwood number. Finally, integrating these parameters in COMSOL multiphysics simulations, the unidirectional diffusion mathematical model was validated.
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Affiliation(s)
- Jacobo Hernandez-Montelongo
- Department of Physical and Mathematical Sciences, Catholic University of Temuco, Temuco 4813302, Chile
- Department of Translational Bioengineering, University of Guadalajara, Guadalajara 44430, Mexico
| | - Javiera Salazar-Araya
- Department of Mathematics and Statistics, University of La Frontera, Temuco 4811230, Chile;
| | - Elizabeth Mas-Hernández
- Faculty of Chemistry, Autonomous University of Queretaro, Campus Pedro Escobedo, Queretaro 76700, Mexico;
- Department of Mathematical Engineering, University of La Frontera, Temuco 4811230, Chile
| | - Douglas Soares Oliveira
- Jandaia do Sul Advanced Campus, Federal University of Parana, Jandaia do Sul 86900-000, PR, Brazil;
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Naveas N, Pulido R, Marini C, Gargiani P, Hernandez-Montelongo J, Brito I, Manso-Silván M. First-Principles Calculations of Magnetite (Fe 3O 4) above the Verwey Temperature by Using Self-Consistent DFT + U + V. J Chem Theory Comput 2023; 19:8610-8623. [PMID: 37974305 PMCID: PMC10720343 DOI: 10.1021/acs.jctc.3c00860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/10/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
In this report, we have used the DFT + U + V approach, an extension of the DFT + U approach that takes into account both on-site and intersite interactions, to simulate structural, magnetic, and electronic properties together with the Fe and O K-edge XAS spectra of Fe3O4 above the Verwey temperature (Tv). Moreover, we compared the simulated XAS spectra with experimental XAS data. We examined both orthogonalized and nonorthogonalized atomic orbital projectors and compared DFT + U + V to DFT, DFT + U, and HSE as a hybrid functional. It is noteworthy that, despite the widespread use of the same Hubbard U value for Feoct and Fetet at the DFT + U level in the literature, the HP code identified two distinct values for them using the Hubbard approaches (DFT + U and DFT + U + V). The resulting Hubbard U and V parameters are strongly dependent on the chosen orbital projectors. This study demonstrates how DFT + U + V can improve the structural, magnetic, and electronic properties of Fe3O4 compared to approximate DFT and DFT + U. In this context, DFT + U + V supports the half-metallic character of the bulk crystal Fe3O4 above Tv, since the Fermi level is found in the t2g band with a Feoct down-spin. Thus, the observations in the current study emphasize the significance of intersite interactions in the theoretical analysis of Fe3O4 above the Tv.
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Affiliation(s)
- Nelson Naveas
- Departamento
de Física Aplicada, Universidad Autónoma
de Madrid, 28049 Madrid, Spain
- Departamento
de Ingeniería Química y Procesos de Minerales, Universidad de Antofagasta, Avenida Angamos 601, 1270300 Antofagasta, Chile
- Instituto
Universitario de Ciencia de Materiales “Nicolás Cabrera”
(INC), Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
| | - Ruth Pulido
- Instituto
Universitario de Ciencia de Materiales “Nicolás Cabrera”
(INC), Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
- Departamento
de Química, Universidad de Antofagasta, Avenida Angamos 601, 1270300 Antofagasta, Chile
| | - Carlo Marini
- CELLS−ALBA
Synchrotron, 08290 Cerdanyola del Valles, Spain
| | | | | | - Ivan Brito
- Departamento
de Química, Universidad de Antofagasta, Avenida Angamos 601, 1270300 Antofagasta, Chile
| | - Miguel Manso-Silván
- Departamento
de Física Aplicada, Universidad Autónoma
de Madrid, 28049 Madrid, Spain
- Instituto
Universitario de Ciencia de Materiales “Nicolás Cabrera”
(INC), Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
- Centro
de Microanálisis de Materiales, Universidad
Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
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Escobar K, Carrera I, Naveas N, Pulido R, Manso M, Guarnieri JPDO, Lancellotti M, Cotta MA, Corrales-Ureña YR, Rischka K, Hernandez-Montelongo J. Functionalization of breast implants by cyclodextrin in-situ polymerization: a local drug delivery system for augmentation mammaplasty. Front Bioeng Biotechnol 2023; 11:1254299. [PMID: 37811378 PMCID: PMC10557261 DOI: 10.3389/fbioe.2023.1254299] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/11/2023] [Indexed: 10/10/2023] Open
Abstract
Mammaplasty is a widely performed surgical procedure worldwide, utilized for breast reconstruction, in the context of breast cancer treatment, and aesthetic purposes. To enhance post-operative outcomes and reduce risks (hematoma with required evacuation, capsular contracture, implant-associated infection and others), the controlled release of medicaments can be achieved using drug delivery systems based on cyclodextrins (CDs). In this study, our objective was to functionalize commercially available silicone breast implants with smooth and textured surfaces through in-situ polymerization of two CDs: β-CD/citric acid and 2-hydroxypropyl-β-CD/citric acid. This functionalization serves as a local drug delivery system for the controlled release of therapeutic molecules that potentially can be a preventive treatment for post-operative complications in mammaplasty interventions. Initially, we evaluated the pre-treatment of sample surfaces with O2 plasma, followed by chitosan grafting. Subsequently, in-situ polymerization using both types of CDs was performed on implants. The results demonstrated that the proposed pre-treatment significantly increased the polymerization yield. The functionalized samples were characterized using microscopic and physicochemical techniques. To evaluate the efficacy of the proposed system for controlled drug delivery in augmentation mammaplasty, three different molecules were utilized: pirfenidone (PFD) for capsular contracture prevention, Rose Bengal (RB) as anticancer agent, and KR-12 peptide (KR-12) to prevent bacterial infection. The release kinetics of PFD, RB, and KR-12 were analyzed using the Korsmeyer-Peppas and monolithic solution mathematical models to identify the respective delivery mechanisms. The antibacterial effect of KR-12 was assessed against Staphylococcus epidermidis and Pseudomonas aeruginosa, revealing that the antibacterial rate of functionalized samples loaded with KR-12 was dependent on the diffusion coefficients. Finally, due to the immunomodulatory properties of KR-12 peptide on epithelial cells, this type of cells was employed to investigate the cytotoxicity of the functionalized samples. These assays confirmed the superior properties of functionalized samples compared to unprotected implants.
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Affiliation(s)
- Karen Escobar
- Department of Mathematical and Physical Sciences, UC Temuco, Temuco, Chile
| | - Ignacio Carrera
- Department of Mathematical and Physical Sciences, UC Temuco, Temuco, Chile
| | - Nelson Naveas
- Department of Applied Physics, Centre for Micro Analysis of Materials and Nicolás Cabrera Institute of Materials Science, Autonomous University of Madrid, Madrid, Spain
- Departamento de Ingeniería Química y Procesos de Minerales, Universidad de Antofagasta, Antofagasta, Chile
| | - Ruth Pulido
- Department of Applied Physics, Centre for Micro Analysis of Materials and Nicolás Cabrera Institute of Materials Science, Autonomous University of Madrid, Madrid, Spain
- Departamento de Química, Universidad de Antofagasta, Antofagasta, Chile
| | - Miguel Manso
- Department of Applied Physics, Centre for Micro Analysis of Materials and Nicolás Cabrera Institute of Materials Science, Autonomous University of Madrid, Madrid, Spain
| | | | - Marcelo Lancellotti
- Faculty of Pharmaceutical Sciences, State University of Campinas, Campinas, Brazil
| | - Monica A. Cotta
- Institute of Physics Gleb Wataghin, State University of Campinas, Campinas, Brazil
| | | | - Klaus Rischka
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials, Bremen, Germany
| | - Jacobo Hernandez-Montelongo
- Department of Mathematical and Physical Sciences, UC Temuco, Temuco, Chile
- Department of Translational Bioengineering, University of Guadalajara, Guadalajara, Mexico
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França CG, Leme KC, Luzo ÂCM, Hernandez-Montelongo J, Santana MHA. Oxidized hyaluronic acid/adipic acid dihydrazide hydrogel as cell microcarriers for tissue regeneration applications. e-Polymers 2022. [DOI: 10.1515/epoly-2022-0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
Hyaluronic acid (HA) is a biopolymer present in various human tissues, whose degradation causes tissue damage and diseases. The oxidized hyaluronic acid/adipic acid dihydrazide (oxi-HA/ADH) hydrogels have attracted attention due to their advantages such as thermosensitivity, injectability, in situ gelation, and sterilization. However, studies are still scarce in the literature as microcarriers. In that sense, this work is a study of oxi-HA/ADH microparticles of 215.6 ± 2.7 µm obtained by high-speed shearing (18,000 rpm at pH 7) as cell microcarriers. Results showed that BALB/c 3T3 fibroblasts and adipose mesenchymal stem cells (h-AdMSC) cultured on the oxi-HA/ADH microcarriers presented a higher growth of both cells in comparison with the hydrogel. Moreover, the extrusion force of oxi-HA/ADH microparticles was reduced by 35% and 55% with the addition of 25% and 75% HA fluid, respectively, thus improving its injectability. These results showed that oxi-HA/ADH microcarriers can be a potential injectable biopolymer for tissue regeneration applications.
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Affiliation(s)
- Carla Giometti França
- Department of Materials and Bioprocess Engineering, School of Chemical Engineering, University of Campinas , 13083-852 , Campinas , SP , Brazil
| | - Krissia Caroline Leme
- Haematology & Hemotherapy Center, Umbilical Cord Blood Bank, University of Campinas , 13083-878 , Campinas , SP , Brazil
| | - Ângela Cristina Malheiros Luzo
- Haematology & Hemotherapy Center, Umbilical Cord Blood Bank, University of Campinas , 13083-878 , Campinas , SP , Brazil
| | | | - Maria Helena Andrade Santana
- Department of Materials and Bioprocess Engineering, School of Chemical Engineering, University of Campinas , 13083-852 , Campinas , SP , Brazil
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Lopes JH, Tabary N, Hernandez-Montelongo J. Editorial: Biomacromolecules Systems Applied to Medical Implants for the Release of Therapeutic Agents. Front Bioeng Biotechnol 2022; 10:910203. [PMID: 35573241 PMCID: PMC9091649 DOI: 10.3389/fbioe.2022.910203] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/12/2022] [Indexed: 12/04/2022] Open
Affiliation(s)
- Joao Henrique Lopes
- Department of Chemistry, Division of Fundamental Sciences (IEF), Aeronautics Institute of Technology - ITA, Sao Jose dos Campos, Brazil
| | - Nicolas Tabary
- Université Lille 1, Unité Matériaux et Transformations (UMET), UMR CNRS 8207, Villeneuve d’Ascq, France
| | - Jacobo Hernandez-Montelongo
- Department of Physical and Mathematical Sciences, Catholic University of Temuco, Temuco, Chile
- *Correspondence: Jacobo Hernandez-Montelongo,
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Monteiro MP, Hernandez-Montelongo J, Sahoo PK, Hernández Montelongo R, de Oliveira DS, Piazzeta MHO, García Sandoval JP, de Souza AA, Gobbi AL, Cotta MA. Functionalized microchannels as xylem-mimicking environment: Quantifying X. fastidiosa cell adhesion. Biophys J 2021; 120:1443-1453. [PMID: 33607085 DOI: 10.1016/j.bpj.2021.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 01/27/2021] [Accepted: 02/08/2021] [Indexed: 11/28/2022] Open
Abstract
Microchannels can be used to simulate xylem vessels and investigate phytopathogen colonization under controlled conditions. In this work, we explore surface functionalization strategies for polydimethylsiloxane and glass microchannels to study microenvironment colonization by Xylella fastidiosa subsp. pauca cells. We closely monitored cell initial adhesion, growth, and motility inside microfluidic channels as a function of chemical environments that mimic those found in xylem vessels. Carboxymethylcellulose (CMC), a synthetic cellulose, and an adhesin that is overexpressed during early stages of X. fastidiosa biofilm formation, XadA1 protein, were immobilized on the device's internal surfaces. This latter protocol increased bacterial density as compared with CMC. We quantitatively evaluated the different X. fastidiosa attachment affinities to each type of microchannel surface using a mathematical model and experimental observations acquired under constant flow of culture medium. We thus estimate that bacterial cells present ∼4 and 82% better adhesion rates in CMC- and XadA1-functionalized channels, respectively. Furthermore, variable flow experiments show that bacterial adhesion forces against shear stresses approximately doubled in value for the XadA1-functionalized microchannel as compared with the polydimethylsiloxane and glass pristine channels. These results show the viability of functionalized microchannels to mimic xylem vessels and corroborate the important role of chemical environments, and particularly XadA1 adhesin, for early stages of X. fastidiosa biofilm formation, as well as adhesivity modulation along the pathogen life cycle.
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Affiliation(s)
- Moniellen P Monteiro
- Departamento de Física Aplicada, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil.
| | - Jacobo Hernandez-Montelongo
- Departamento de Física Aplicada, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil.
| | - Prasana K Sahoo
- Departamento de Física Aplicada, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil
| | - Rosaura Hernández Montelongo
- Departamento de Electrónica, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Douglas S de Oliveira
- Campus Avançado de Jandaia do Sul, Universidade Federal do Paraná, Jandaia do Sul, Paraná, Brasil
| | - Maria H O Piazzeta
- Laboratório Nacional de Nanotecnologia, Centro Nacional de Pesquisa em Energia e Materiais/CNPEM, Campinas, São Paulo, Brasil
| | - Juan P García Sandoval
- Departamento de Ingeniería Química, Centro Universitario de Ciencias Exactas e Ingenierías, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Alessandra A de Souza
- Instituto Agronômico de Campinas, Centro de Citricultura Sylvio Moreira, Cordeirópolis, São Paulo, Brasil
| | - Angelo L Gobbi
- Laboratório Nacional de Nanotecnologia, Centro Nacional de Pesquisa em Energia e Materiais/CNPEM, Campinas, São Paulo, Brasil
| | - Mônica A Cotta
- Departamento de Física Aplicada, Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil.
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Pires ALR, Westin CB, Hernandez-Montelongo J, Sousa IMO, Foglio MA, Moraes AM. Corrigendum to "Flexible, dense and porous chitosan and alginate membranes containing the standardized extract of Arrabidaea chica Verlot for the treatment of skin lesions" [Mater. Sci. Eng. C 112 (2020) 110869]. Mater Sci Eng C Mater Biol Appl 2021; 121:111816. [PMID: 33579460 DOI: 10.1016/j.msec.2020.111816] [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] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- A L R Pires
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - C B Westin
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | | | - I M O Sousa
- School of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - M A Foglio
- School of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - A M Moraes
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil.
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Pires ALR, Westin CB, Hernandez-Montelongo J, Sousa IMO, Foglio MA, Moraes AM. Flexible, dense and porous chitosan and alginate membranes containing the standardized extract of Arrabidaea chica Verlot for the treatment of skin lesions. Mater Sci Eng C Mater Biol Appl 2020; 112:110869. [PMID: 32409038 DOI: 10.1016/j.msec.2020.110869] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/22/2020] [Accepted: 03/19/2020] [Indexed: 01/31/2023]
Abstract
The combination of chitosan (C) with alginate (A) has been explored for the production of dressings due to the positive results on wound healing. CA films can show a dense or porous flexible structure, with characteristics tunable for different applications. Porosity and flexibility can be achieved, respectively, by the addition of surfactants such as Kolliphor® P188 (P) and silicone-based compounds as Silpuran® 2130 A/B (S). Furthermore, composite matrices of these polysaccharides have potential applications as devices for releasing bioactive compounds to skin lesions. The purpose of this study was to evaluate the physicochemical and biological characteristics of flexible dense and porous CA membranes incorporating the standardized extract of Arrabidaea chica Verlot (A. chica), and also to analyze the release mechanism of the extract from different membrane formulations. The results show that the inclusion of P in the formulation allows obtaining porous matrices, promotes greater homogeneity of the mixture of the silicone gel with the suspension of polysaccharides, and increases the swelling of the polymer matrix. All formulations presented high stability, reaching a maximum mass loss of 18% after seven days. The formulations with S showed the best performance in terms of flexibility and strain at break. The presence of A. chica standardized extract did not affect negatively the characteristics of the membranes. Incorporation efficiencies of the bioactive compound above 87% were achieved, and the addition of P and S to the membrane formulation changed the release of the A. chica extract kinetics. In addition, the developed formulations did not significantly affect Vero cells proliferation.
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Affiliation(s)
- A L R Pires
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - C B Westin
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | | | - I M O Sousa
- School of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - M A Foglio
- School of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - A M Moraes
- School of Chemical Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil.
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Nicastro GG, Kaihami GH, Pulschen AA, Hernandez-Montelongo J, Boechat AL, de Oliveira Pereira T, Rosa CGT, Stefanello E, Colepicolo P, Bordi C, Baldini RL. c-di-GMP-related phenotypes are modulated by the interaction between a diguanylate cyclase and a polar hub protein. Sci Rep 2020; 10:3077. [PMID: 32080219 PMCID: PMC7033161 DOI: 10.1038/s41598-020-59536-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 01/30/2020] [Indexed: 01/19/2023] Open
Abstract
c-di-GMP is a major player in the switch between biofilm and motile lifestyles. Several bacteria exhibit a large number of c-di-GMP metabolizing proteins, thus a fine-tuning of this nucleotide levels may occur. It is hypothesized that some c-di-GMP metabolizing proteins would provide the global c-di-GMP levels inside the cell whereas others would maintain a localized pool, with the resulting c-di-GMP acting at the vicinity of its production. Although attractive, this hypothesis has yet to be demonstrated in Pseudomonas aeruginosa. We found that the diguanylate cyclase DgcP interacts with the cytosolic region of FimV, a polar peptidoglycan-binding protein involved in type IV pilus assembly. Moreover, DgcP is located at the cell poles in wild type cells but scattered in the cytoplasm of cells lacking FimV. Overexpression of dgcP leads to the classical phenotypes of high c-di-GMP levels (increased biofilm and impaired motilities) in the wild-type strain, but not in a ΔfimV background. Therefore, our findings suggest that DgcP activity is regulated by FimV. The polar localization of DgcP might contribute to a local c-di-GMP pool that can be sensed by other proteins at the cell pole, bringing to light a specialized function for a specific diguanylate cyclase.
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Affiliation(s)
- Gianlucca G Nicastro
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Gilberto H Kaihami
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - André A Pulschen
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Jacobo Hernandez-Montelongo
- Instituto de Física "Gleb Wataghin", Universidade Estadual de Campinas, Campinas, Brazil
- Departamento de Ciencias Matemáticas y Físicas, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco, Chile
| | - Ana Laura Boechat
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | | | - Caio Gomes Tavares Rosa
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Eliezer Stefanello
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Pio Colepicolo
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | | | - Regina L Baldini
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil.
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França CG, Nascimento VF, Hernandez-Montelongo J, Machado D, Lancellotti M, Beppu MM. Synthesis and Properties of Silk Fibroin/Konjac Glucomannan Blend Beads. Polymers (Basel) 2018; 10:polym10080923. [PMID: 30960848 PMCID: PMC6403648 DOI: 10.3390/polym10080923] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 06/25/2018] [Accepted: 08/07/2018] [Indexed: 02/05/2023] Open
Abstract
Silk fibroin (SF) and konjac glucomannan (KGM) are promising materials in the biomedical field due to their low toxicity, biocompatibility, biodegradability and low immune response. Beads of these natural polymers are interesting scaffolds for biomedical applications, but their fabrication is a challenge due to their low stability and the necessary adaptation of their chemical and mechanical properties to be successfully applied. In that sense, this study aimed to synthesize a blend of silk fibroin and konjac glucomannan (SF/KGM) in the form of porous beads obtained through dripping into liquid nitrogen, with a post-treatment using ethanol. Intermolecular hydrogen bonds promoted the integration of SF and KGM. Treated beads showed higher porous size, crystallinity, and stability than untreated beads. Characterization analyses by Fourier-transform infrared spectroscopy (FTIR), thermogravimetric (TGA), and X-ray diffraction (XDR) evidenced that ethanol treatment allows a conformational transition from silk I to silk II in SF and an increase in the KGM deacetylation. Those chemical changes significantly enhanced the mechanical resistance of SF/KGM beads in comparison to pure SF and KGM beads. Moreover, samples showed cytocompatibility with HaCaT and BALB/c 3T3 cells.
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Affiliation(s)
- Carla Giometti França
- Faculdade de Engenharia Química, Universidade Estadual de Campinas, Campinas 13083-852, São Paulo, Brazil.
| | - Vicente Franco Nascimento
- Faculdade de Engenharia Química, Universidade Estadual de Campinas, Campinas 13083-852, São Paulo, Brazil.
| | - Jacobo Hernandez-Montelongo
- Departamento de Ciencias Matemáticas y Físicas, Facultad de Ingeniería, Universidad Católica de Temuco, Temuco 4813302, Chile.
- Núcleo de Investigación en Bioproductos y Materiales Avanzados (BioMa), Facultad de Ingeniería, Universidad Católica de Temuco, Temuco 4781312, Chile.
| | - Daisy Machado
- Laboratório de Biotecnologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas 13083-862, São Paulo, Brazil.
| | - Marcelo Lancellotti
- Laboratório de Biotecnologia, Instituto de Biologia, Universidade Estadual de Campinas, Campinas 13083-862, São Paulo, Brazil.
| | - Marisa Masumi Beppu
- Faculdade de Engenharia Química, Universidade Estadual de Campinas, Campinas 13083-852, São Paulo, Brazil.
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Hernandez-Montelongo J, Corrales Ureña Y, Machado D, Lancelloti M, Pinheiro M, Rischka K, Lisboa-Filho P, Cotta M. Electrostatic immobilization of antimicrobial peptides on polyethylenimine and their antibacterial effect against Staphylococcus epidermidis. Colloids Surf B Biointerfaces 2018; 164:370-378. [DOI: 10.1016/j.colsurfb.2018.02.002] [Citation(s) in RCA: 7] [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: 10/25/2017] [Revised: 01/29/2018] [Accepted: 02/02/2018] [Indexed: 12/22/2022]
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Hernandez-Montelongo J, Lucchesi E, Nascimento V, França C, Gonzalez I, Macedo W, Machado D, Lancellotti M, Moraes A, Beppu M, Cotta M. Antibacterial and non-cytotoxic ultra-thin polyethylenimine film. Materials Science and Engineering: C 2017; 71:718-724. [DOI: 10.1016/j.msec.2016.10.064] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/28/2016] [Accepted: 10/24/2016] [Indexed: 10/20/2022]
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Hernandez-Montelongo J, Lucchesi E, Gonzalez I, Macedo W, Nascimento V, Moraes A, Beppu M, Cotta M. Hyaluronan/chitosan nanofilms assembled layer-by-layer and their antibacterial effect: A study using Staphylococcus aureus and Pseudomonas aeruginosa. Colloids Surf B Biointerfaces 2016; 141:499-506. [DOI: 10.1016/j.colsurfb.2016.02.028] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 02/01/2016] [Accepted: 02/10/2016] [Indexed: 10/22/2022]
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Hernandez-Montelongo J, Naveas N, Degoutin S, Tabary N, Chai F, Spampinato V, Ceccone G, Rossi F, Torres-Costa V, Manso-Silvan M, Martel B. Porous silicon-cyclodextrin based polymer composites for drug delivery applications. Carbohydr Polym 2014; 110:238-52. [DOI: 10.1016/j.carbpol.2014.04.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Revised: 03/19/2014] [Accepted: 04/02/2014] [Indexed: 10/25/2022]
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Naveas N, Hernandez-Montelongo J, Pulido R, Torres-Costa V, Villanueva-Guerrero R, García Ruiz JP, Manso-Silván M. Fabrication and characterization of a chemically oxidized-nanostructured porous silicon based biosensor implementing orienting protein A. Colloids Surf B Biointerfaces 2014; 115:310-6. [DOI: 10.1016/j.colsurfb.2013.11.026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 11/13/2013] [Accepted: 11/14/2013] [Indexed: 11/26/2022]
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Hernandez-Montelongo J, Gallach D, Naveas N, Torres-Costa V, Climent-Font A, García-Ruiz JP, Manso-Silvan M. Calcium phosphate/porous silicon biocomposites prepared by cyclic deposition methods: spin coating vs electrochemical activation. Mater Sci Eng C Mater Biol Appl 2013; 34:245-51. [PMID: 24268256 DOI: 10.1016/j.msec.2013.09.022] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 09/09/2013] [Accepted: 09/18/2013] [Indexed: 01/31/2023]
Abstract
Porous silicon (PSi) provides an excellent platform for bioengineering applications due to its biocompatibility, biodegradability, and bioresorbability. However, to promote its application as bone engineering scaffold, deposition of calcium phosphate (CaP) ceramics in its hydroxyapatite (HAP) phase is in progress. In that sense, this work focuses on the synthesis of CaP/PSi composites by means of two different techniques for CaP deposition on PSi: Cyclic Spin Coating (CSC) and Cyclic Electrochemical Activation (CEA). Both techniques CSC and CEA consisted on alternate Ca and P deposition steps on PSi. Each technique produced specific morphologies and CaP phases using the same independent Ca and P stem-solutions at neutral pH and at room temperature. The brushite (BRU) phase was favored with the CSC technique and the hydroxyapatite (HAP) phase was better synthesized using the CEA technique. Analyses by elastic backscattering spectroscopy (EBS) on CaP/PSi structures synthesized by CEA supported that, by controlling the CEA parameters, an HAP coating with the required Ca/P atomic ratio of 1.67 can be promoted. Biocompatibility was evaluated by bone-derived progenitor cells, which grew onto CaP/PSi prepared by CSC technique with a long-shaped actin cytoskeleton. The density of adhered cells was higher on CaP/PSi prepared by CEA, where cells presented a normal morphological appearance and active mitosis. These results can be used for the design and optimization of CaP/PSi composites with enhanced biocompatibility for bone-tissue engineering.
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Naveas N, Costa VT, Gallach D, Hernandez-Montelongo J, Palma RJM, Garcia-Ruiz JP, Manso-Silván M. Chemical stabilization of porous silicon for enhanced biofunctionalization with immunoglobulin. Sci Technol Adv Mater 2012; 13:045009. [PMID: 27877509 PMCID: PMC5090565 DOI: 10.1088/1468-6996/13/4/045009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Accepted: 07/19/2012] [Indexed: 06/06/2023]
Abstract
Porous silicon (PSi) is widely used in biological experiments, owing to its biocompatibility and well-established fabrication methods that allow tailoring its surface. Nevertheless, there are some unresolved issues such as deciding whether the stabilization of PSi is necessary for its biological applications and evaluating the effects of PSi stabilization on the surface biofunctionalization with proteins. In this work we demonstrate that non-stabilized PSi is prone to detachment owing to the stress induced upon biomolecular adsorption. Biofunctionalized non-stabilized PSi loses the interference properties characteristic of a thin film, and groove-like structures resulting from a final layer collapse were observed by scanning electron microscopy. Likewise, direct PSi derivatization with 3-aminopropyl-triethoxysilane (APTS) does not stabilize PSi against immunoglobulin biofunctionalization. To overcome this problem, we developed a simple chemical process of stabilizing PSi (CoxPSi) for biological applications, which has several advantages over thermal stabilization (ToxPSi). The process consists of chemical oxidation in H2O2, surface derivatization with APTS and a curing step at 120 °C. This process offers integral homogeneous PSi morphology, hydrophilic surface termination (contact angle θ = 26°) and highly efficient derivatized and biofunctionalized PSi surfaces (six times more efficient than ToxPSi). All these features are highly desirable for biological applications, such as biosensing, where our results can be used for the design and optimization of the biomolecular immobilization cascade on PSi surfaces.
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Affiliation(s)
- Nelson Naveas
- Department of Applied Physics, Universidad Autónoma de Madrid, Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - Vicente Torres Costa
- Department of Applied Physics, Universidad Autónoma de Madrid, Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - Dario Gallach
- Department of Applied Physics, Universidad Autónoma de Madrid, Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - Jacobo Hernandez-Montelongo
- Department of Applied Physics, Universidad Autónoma de Madrid, Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | - Raul Jose Martín Palma
- Department of Applied Physics, Universidad Autónoma de Madrid, Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
| | | | - Miguel Manso-Silván
- Department of Applied Physics, Universidad Autónoma de Madrid, Madrid, Ciudad Universitaria de Cantoblanco, 28049, Madrid, Spain
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