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Jorge EC, Martínez NN, González MJ, Sánchez SV, Robino L, Morales JO, Scavone P. Gold-, silver- and magnesium-doped zinc oxide nanoparticles prevents the formation of and eradicates bacterial biofilms. Nanomedicine (Lond) 2023. [PMID: 37254888 DOI: 10.2217/nnm-2022-0239] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023] Open
Abstract
Aim: This work aimed to synthesize magnesium-doped zinc oxide, silver and gold nanoparticles (Nps) and to evaluate their potential to prevent and eradicate Escherichia coli, Proteus mirabilis, Staphylococcus aureus, Acinetobacter baumannii and Pseudomonas aeruginosa biofilms. Materials & methods: The Nps were synthesized by precipitation and metallic reduction techniques. Physicochemical and biological characterization of Nps was performed. Results: All the Nps tested were able to inhibit the formation of E. coli, P. mirabilis, S. aureus and A. baumannii biofilms. The effects on the eradication of preformed biofilms were variable, although all the Nps tested were able to eradicate A. baumannii biofilms. Conclusion: The observed effects make the Nps suitable for coating surfaces and/or antibiotic carriers with medical interest.
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Affiliation(s)
- Erlen Cruz Jorge
- Departamento de Microbiología, Laboratorio de Biofilms Microbianos, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318 PC 11600, Montevideo, Uruguay
| | - Nicolás Navarro Martínez
- Departamento de Microbiología, Laboratorio de Biofilms Microbianos, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318 PC 11600, Montevideo, Uruguay
- Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, PC 8380000, PC Santiago, Chile
- Center of New Drugs for Hypertension (CENDHY), Santos Dumont 964, Independencia, PC 8380000, Santiago, Chile
| | - María José González
- Departamento de Microbiología, Laboratorio de Biofilms Microbianos, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318 PC 11600, Montevideo, Uruguay
| | - Sofía V Sánchez
- Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, PC 8380000, PC Santiago, Chile
- Center of New Drugs for Hypertension (CENDHY), Santos Dumont 964, Independencia, PC 8380000, Santiago, Chile
- Departamento de Ciencias y Tecnologías Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, PC 8380000, Santiago, Chile
| | - Luciana Robino
- Departamento de Bacteriología y Virología, Instituto de Higiene, Facultad de Medicina, Universidad del República, Alfredo Navarro 3051, PC 11600 Montevideo, Uruguay
| | - Javier O Morales
- Advanced Center for Chronic Diseases (ACCDiS), Sergio Livingstone 1007, Independencia, PC 8380000, PC Santiago, Chile
- Center of New Drugs for Hypertension (CENDHY), Santos Dumont 964, Independencia, PC 8380000, Santiago, Chile
- Departamento de Ciencias y Tecnologías Farmacéuticas, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santos Dumont 964, Independencia, PC 8380000, Santiago, Chile
| | - Paola Scavone
- Departamento de Microbiología, Laboratorio de Biofilms Microbianos, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318 PC 11600, Montevideo, Uruguay
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Camara BOS, Ocarino NM, Bertassoli BM, Malm C, Araújo FR, Reis AMS, Jorge EC, Alves EGL, Serakides R. Differentiation of canine adipose mesenchymal stem cells into insulin-producing cells: comparison of different culture medium compositions. Domest Anim Endocrinol 2021; 74:106572. [PMID: 33039930 DOI: 10.1016/j.domaniend.2020.106572] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/04/2020] [Accepted: 09/10/2020] [Indexed: 12/25/2022]
Abstract
The aim of this study was to differentiate canine adipose-derived mesenchymal stem cells (ADMSCs) into insulin-producing cells by using culture media with different compositions to determine the most efficient media. Stem cells isolated from the fat tissues close to the bitch uterus were distributed into 6 groups: (1) Dulbecco's modified Eagle medium (DMEM)-high glucose (HG), β-mercaptoethanol, and nicotinamide; (2) DMEM-HG, β-mercaptoethanol, nicotinamide, and exendin-4; (3) DMEM-HG, β-mercaptoethanol, nicotinamide, exendin-4, B27, nonessential amino acids, and l-glutamine; (4) DMEM-HG, β-mercaptoethanol, and nicotinamide (for the initial 8-d period), and DMEM-HG, β-mercaptoethanol, nicotinamide, exendin-4, B27, nonessential amino acids, l-glutamine, and basic fibroblast growth factor (for the remaining 8-d period); (5) DMEM-HG and fetal bovine serum; and (6) DMEM-low glucose and fetal bovine serum (standard control group). Adipose-derived mesenchymal stem cells from groups 1 to 5 gradually became round in shape and gathered in clusters. These changes differed between the groups. In group 3, the cell clusters were apparently more in numbers and gathered as bigger aggregates. Dithizone staining showed that groups 3 and 4 were similar in terms of the mean area of each aggregate stained for insulin. However, only in group 4, the number of insulin aggregates and the total area of aggregates stained were significantly bigger than in the other groups. The mRNA expression of PDX1, BETA2, MafA, and Insulin were also confirmed in all the groups. We conclude that by manipulating the composition of the culture medium it is possible to induce canine ADMSCs into insulin-producing cells, and the 2-staged protocol that was used promoted the best differentiation.
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Affiliation(s)
- B O S Camara
- Núcleo de Células Tronco e Terapia Celular Animal (NCT-TCA) da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - N M Ocarino
- Núcleo de Células Tronco e Terapia Celular Animal (NCT-TCA) da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - B M Bertassoli
- Universidade de Uberaba (UNIUBE), Uberaba, Minas Gerais, Brazil
| | - C Malm
- Núcleo de Células Tronco e Terapia Celular Animal (NCT-TCA) da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - F R Araújo
- Núcleo de Células Tronco e Terapia Celular Animal (NCT-TCA) da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - A M S Reis
- Núcleo de Células Tronco e Terapia Celular Animal (NCT-TCA) da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - E C Jorge
- Laboratório de Biologia Oral e do Desenvolvimento, Departamento de Morfologia do Instituto de Ciências Biológicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - E G L Alves
- Universidade de Uberaba (UNIUBE), Uberaba, Minas Gerais, Brazil
| | - R Serakides
- Núcleo de Células Tronco e Terapia Celular Animal (NCT-TCA) da Escola de Veterinária da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.
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Andreote APD, Rosario MF, Ledur MC, Jorge EC, Sonstegard TS, Matukumalli L, Coutinho LL. Identification and characterization of microRNAs expressed in chicken skeletal muscle. Genet Mol Res 2014; 13:1465-79. [PMID: 24634245 DOI: 10.4238/2014.march.6.5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
MicroRNAs (miRNAs, miRs) encompass a class of small non-coding RNAs that often negatively regulate gene expression. miRNAs play an essential role in skeletal muscle, determining the proper development and maintenance of this tissue. In comparison to other organs and tissues, the full set of muscle miRNAs and its expression patterns are still poorly understood. In this report, a chicken skeletal muscle miRNA library was constructed, and the expression of selected miRNAs was further characterized during muscle development in chicken lines with distinct muscling phenotypes. Clone library sequence analysis revealed 40 small RNAs with similarities to previously described chicken miRNAs, seven miRNAs that were never identified before in chicken, and some sequence clusters representing other possible novel miRNAs. Temporal expression profiles of three miRNAs associated with cell proliferation and differentiation (miR-125b, miR-221, and miR-206) in two chicken lines (broiler and layer) revealed the differential steady-state levels of these miRs during skeletal muscle growth and suggests that miR-206 is involved in the muscling phenotype that is observed in growth-selected chicken lines.
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Affiliation(s)
- A P D Andreote
- Departamento de Zootecnia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, Brasil
| | - M F Rosario
- Departamento de Zootecnia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, Brasil
| | - M C Ledur
- Embrapa Suínos e Aves, Concórdia, SC, Brasil
| | - E C Jorge
- Departamento de Zootecnia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, Brasil
| | - T S Sonstegard
- Beltsville Area Research Center, United Center Department of Agriculture, Beltsville, MD, USA
| | - L Matukumalli
- Beltsville Area Research Center, United Center Department of Agriculture, Beltsville, MD, USA
| | - L L Coutinho
- Departamento de Zootecnia, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, SP, Brasil
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Rezende LR, Delgado EF, Júnior ARL, Gasparin G, Jorge EC, Mourão GB, Coutinho LL. Expression of 1alpha-HYD and 24-HYD in bovine kidney mediated by vitamin D3 supplementation. Genet Mol Res 2013; 12:6611-8. [PMID: 24391007 DOI: 10.4238/2013.december.11.12] [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] [Indexed: 11/03/2022]
Abstract
In order to better understand vitamin D3 in cattle metabolism, we quantified 1alpha-HYD and 24-HYD gene expression. In the kidneys of 35 male Nellore cattle, these were divided into a control group and two treatment groups (2 x 10(6) international units of vitamin D3 administered for 2 or 8 consecutive days pre-slaughter). Vitamin D3 supplementation resulted in a significant increase in 1alpha-HYD gene expression; however, significantly increased 24-HYD gene expression was only detected in cattle that had 8 days of supplementation. The finding of upregulation of 24-HYD due to vitamin D supplementation is in line with the expected rise in 24,25-di-hydroxy-vitamin D3 synthesis observed when plasma vitamin D3 concentrations are high, stimulating excretion by the organism. On the other hand, upregulation of 1alpha-HYD was unexpected, since vitamin D3 supplementation has been reported to impact these two genes in opposite directions. We conclude that vitamin D3 metabolism in these animals is more complex than previously reported.
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Affiliation(s)
- L R Rezende
- Departamento de Zootecnia, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP, Brasil
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Pandolfi V, Jorge EC, Melo CMR, Albuquerque ACS, Carrer H. Gene expression profile of the plant pathogen Fusarium graminearum under the antagonistic effect of Pantoea agglomerans. Genet Mol Res 2010; 9:1298-311. [PMID: 20623455 DOI: 10.4238/vol9-3gmr828] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The pathogenic fungus Fusarium graminearum is an ongoing threat to agriculture, causing losses in grain yield and quality in diverse crops. Substantial progress has been made in the identification of genes involved in the suppression of phytopathogens by antagonistic microorganisms; however, limited information regarding responses of plant pathogens to these biocontrol agents is available. Gene expression analysis was used to identify differentially expressed transcripts of the fungal plant pathogen F. graminearum under antagonistic effect of the bacterium Pantoea agglomerans. A macroarray was constructed, using 1014 transcripts from an F. graminearum cDNA library. Probes consisted of the cDNA of F. graminearum grown in the presence and in the absence of P. agglomerans. Twenty-nine genes were either up (19) or down (10) regulated during interaction with the antagonist bacterium. Genes encoding proteins associated with fungal defense and/or virulence or with nutritional and oxidative stress responses were induced. The repressed genes coded for a zinc finger protein associated with cell division, proteins containing cellular signaling domains, respiratory chain proteins, and chaperone-type proteins. These data give molecular and biochemical evidence of response of F. graminearum to an antagonist and could help develop effective biocontrol procedures for pathogenic plant fungi.
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Affiliation(s)
- V Pandolfi
- Centro de Energia Nuclear na Agricultura, Universidade de São Paulo, Piracicaba, SP, Brasil.
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