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Taira EA, Ferrari CR, Carvalho G, Ventura TMO, Martini T, Dionizio AS, Araújo TT, Crusca E, Marchetto R, Buzalaf MAR. Rinsing with Statherin-Derived Peptide Alters the Proteome of the Acquired Enamel Pellicle. Caries Res 2021; 55:333-340. [PMID: 34344000 DOI: 10.1159/000517959] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [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: 12/15/2020] [Accepted: 06/20/2021] [Indexed: 11/19/2022] Open
Abstract
Changes in the proteomic profile of the acquired enamel pellicle (AEP) formed for 3 min or 2 h after rinsing with a peptide containing the 15 N-terminal residues of statherin, with serines 2 and 3 phosphorylated (StatpSpS), were evaluated. Nine volunteers participated in 2 consecutive days. Each day, after professional tooth cleaning, they rinsed for 1 min with 10 mL of phosphate buffer containing 1.88 × 10-5 M StatpSpS or phosphate buffer only (control). The acquired pellicle formed on enamel after 3 min or 2 h was collected with electrode filter papers soaked in 3% citric acid. After protein extraction, samples were analyzed by quantitative shotgun label-free proteomics. In the 3-min AEP, 19 and 131 proteins were uniquely identified in the StatpSpS and control groups, respectively. Proteins typically found in the AEP were only found in the latter. Only 2 proteins (neutrophil defensins) were increased upon treatment with StatpSpS, while 65 proteins (among which are several typical AEP proteins) were decreased. In the 2-h AEP, 50 and 108 proteins were uniquely found in StatpSpS and control groups, respectively. Hemoglobin subunits and isoforms of keratin were only found in the StatpSpS group, while cystatin-C, cathepsin D, and cathepsin G, isoforms of heat shock 70 and protocadherin were exclusively found in the control group. In addition, 23 proteins were increased upon treatment with StatpSpS, among which are histatin-1, serum albumin, and isoforms of neutrophil defensin and keratin, while 77 were decreased, most of them were typical AEP proteins. In both evaluated periods, rinsing with StatpSpS profoundly changed the proteomic profile of the AEP, which might impact the protective role of this integument against carious or erosive demineralization. This study provides important insights on the dynamics of the protein composition of the AEP along time, after rinsing with a solution containing StatpSpS.
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Affiliation(s)
- Even Akemi Taira
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil,
| | - Carolina Ruis Ferrari
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Gabriel Carvalho
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | | | - Tatiana Martini
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Aline Salgado Dionizio
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Tamara Teodoro Araújo
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, Bauru, Brazil
| | - Edson Crusca
- Chemistry Institute, Paulista State University, Araraquara, Brazil
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Taira EA, Carvalho G, Ferrari CR, Martini T, Pelá VT, Ventura TMO, Dionizio AS, Crusca E, Marchetto R, Buzalaf MAR. Statherin-derived peptide protects against intrinsic erosion. Arch Oral Biol 2020; 119:104890. [DOI: 10.1016/j.archoralbio.2020.104890] [Citation(s) in RCA: 5] [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: 03/19/2020] [Revised: 06/29/2020] [Accepted: 08/25/2020] [Indexed: 10/23/2022]
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Pereira HABDS, Dionizio AS, Araujo TT, Fernandes MDS, Iano FG, Buzalaf MAR. Proposed mechanism for understanding the dose- and time-dependency of the effects of fluoride in the liver. Toxicol Appl Pharmacol 2018; 358:68-75. [PMID: 30217653 DOI: 10.1016/j.taap.2018.09.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 08/22/2018] [Accepted: 09/08/2018] [Indexed: 12/25/2022]
Abstract
Fluoride (F) can induce changes in the expression of several liver proteins. It is suggested that these changes are dose- and time-dependent. The objective of this study was to analyze the effect of different F concentrations and exposure times to this ion on the pattern of protein expression in the liver of rats. Thirt-six 21-day-old male Wistar rats were divided into 2 groups (n = 18) according to the treatment duration (20 or 60 days). Each of these groups was then divided into 3 subgroups (n = 6) according to the concentration of F administered in drinking water, as follows: 0 mg/L (control), 15 mg/L or 50 mg/L. After the experiment periods, the animals were anesthetized and the liver and blood were collected. F was analyzed in plasma and liver. Part of the liver was fixed for histological analysis. Liver proteins were extracted and prepared for quantitative label-free mass spectrometry analysis. F concentrations in plasma and liver were significantly higher in the group treated with 50 mg /L in comparison with control, regardless the time of exposure. Histological alterations in the liver were more evident in the subgroups treated for 20 days. The proteomic analysis revealed changes in proteins related to endoplasmic reticulum and mitochondrial oxidative stress, mitochondrial alteration, apoptosis and cellular respiration upon exposure to F. The results reinforce previous findings showing that the effects of F in the liver are dose- and time-dependent and provide the molecular basis for understanding the evolution of these effects.
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Affiliation(s)
- Heloisa Aparecida Barbosa da Silva Pereira
- Department of Genetics and Evolution, Center of Biological Sciences and the Health, Federal University of São Carlos, Washington Luis, km 235, 13560-970 São Carlos, São Paulo, Brazil
| | - Aline Salgado Dionizio
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, 17012-901 Bauru, São Paulo, Brazil
| | - Tamara Teodoro Araujo
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, 17012-901 Bauru, São Paulo, Brazil
| | - Mileni da Silva Fernandes
- Department of Genetics and Evolution, Center of Biological Sciences and the Health, Federal University of São Carlos, Washington Luis, km 235, 13560-970 São Carlos, São Paulo, Brazil
| | - Flávia Godoy Iano
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, 17012-901 Bauru, São Paulo, Brazil
| | - Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9-75, 17012-901 Bauru, São Paulo, Brazil.
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Ventura TMDS, Ribeiro NR, Dionizio AS, Sabino IT, Buzalaf MAR. Standardization of a protocol for shotgun proteomic analysis of saliva. J Appl Oral Sci 2018; 26:e20170561. [PMID: 29898185 PMCID: PMC6007968 DOI: 10.1590/1678-7757-2017-0561] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/12/2018] [Indexed: 11/21/2022] Open
Abstract
INTRODUCTION Saliva contains numerous proteins and peptides, each of them carries a number of biological functions that are very important in maintaining the oral cavity health and also yields information about both local and systemic diseases. Currently, proteomic analysis is the basis for large-scale identification of these proteins and discovery of new biomarkers for distinct diseases. OBJECTIVE This study compared methodologies to extract salivary proteins for proteomic analysis. MATERIAL AND METHODS Saliva samples were collected from 10 healthy volunteers. In the first test, the necessity for using an albumin and IgG depletion column was evaluated, employing pooled samples from the 10 volunteers. In the second test, the analysis of the pooled samples was compared with individual analysis of one sample. Salivary proteins were extracted and processed for analysis by LC-ESI-MS/MS. RESULTS In the first test, we identified only 35 proteins using the albumin and IgG depletion column, while we identified 248 proteins without using the column. In the second test, the pooled sample identified 212 proteins, such as carbonic anhydrase 6, cystatin isoforms, histatins 1 and 3, lysozyme C, mucin 7, protein S100A8 and S100A9, and statherin, while individual analysis identified 239 proteins, among which are carbonic anhydrase 6, cystatin isoforms, histatin 1 and 3, lactotransferrin, lyzozyme C, mucin 7, protein S100A8 and S100A9, serotransferrin, and statherin. CONCLUSIONS The standardization of protocol for salivary proteomic analysis was satisfactory, since the identification detected typical salivary proteins, among others. The results indicate that using the column for depletion of albumin and IgG is not necessary and that performing individual analysis of saliva samples is possible.
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Affiliation(s)
- Talita Mendes da Silva Ventura
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil
| | - Nathalia Regina Ribeiro
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil
| | - Aline Salgado Dionizio
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil
| | - Isabela Tomazini Sabino
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil
| | - Marília Afonso Rabelo Buzalaf
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ciências Biológicas, Bauru, São Paulo, Brasil
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Pereira HABS, Dionizio AS, Fernandes MS, Araujo TT, Cestari TM, Buzalaf CP, Iano FG, Buzalaf MAR. Fluoride Intensifies Hypercaloric Diet-Induced ER Oxidative Stress and Alters Lipid Metabolism. PLoS One 2016; 11:e0158121. [PMID: 27336443 PMCID: PMC4919043 DOI: 10.1371/journal.pone.0158121] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 06/12/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Here, we evaluated the relationship of diet and F-induced oxidative stress to lipid metabolism in the liver of rats eating normocaloric or hypercaloric diets for two time periods (20 or 60 days). METHODS Seventy-two 21-day-old Wistar rats were divided into 2 groups (n = 36) based on the type of diet they were eating; each of these groups was then further divided into another two groups (n = 18) based on the time periods of either 20 or 60 days, for a total of four groups. Each of these was divided into 3 subgroups (n = 6 animals/subgroup), dependent on the dose of F administered in the drinking water (0 mg/L(control), 15 mg/L or 50 mg/L). After the experimental period, blood samples and the liver were collected. Plasma samples were analyzed for HDL, cholesterol and triglycerides. Western blots were performed to probe for GRP78, Erp29, SOD2, Apo-E and SREBP in hepatic tissues. RESULTS As expected,the expression of target proteins involved in oxidative stress increased in the F-treated groups, especially in liver tissue obtained from animals eating a hypercaloric diet. Most changes in the lipid levels and pathological conditions were seen earlier in the time period, at day 20. The morphometric analyses showed a reduction in steatosis in groups on ahypercaloric diet and treated with 50 mg F/L compared to the control, while no changes were obtained in normocaloric-fed rats. Accordingly, plasma TG was reduced in the F-treated group. The reduced expression of Apo-E in a time- and diet-dependent pattern may account for the particular decrease in steatosis in hypercaloric-fed F-treated rats. CONCLUSIONS These results suggest that F changes liver lipid homeostasis, possibly because of the induction of oxidative stress, which seems to be higher in animals fed hypercaloric diets.
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Affiliation(s)
- Heloisa Aparecida Barbosa Silva Pereira
- Department of Genetics and Evolution, Center of Biological Sciences and the Health, Federal University of São Carlos, Washington Luis, km 235,13560–970, São Carlos, São Paulo, Brazil
| | - Aline Salgado Dionizio
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9–75, 17012–901, Bauru, São Paulo, Brazil
| | - Mileni Silva Fernandes
- Department of Genetics and Evolution, Center of Biological Sciences and the Health, Federal University of São Carlos, Washington Luis, km 235,13560–970, São Carlos, São Paulo, Brazil
| | - Tamara Teodoro Araujo
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9–75, 17012–901, Bauru, São Paulo, Brazil
| | - Tânia Mary Cestari
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9–75, 17012–901, Bauru, São Paulo, Brazil
| | - Camila Peres Buzalaf
- Centro de Ciências da Saúde, Universidade do Sagrado Coração, Rua Irmã Arminda 10–50, 17011–160, Bauru, São Paulo, Brazil
| | - Flávia Godoy Iano
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9–75, 17012–901, Bauru, São Paulo, Brazil
| | - Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru Dental School, University of São Paulo, Al. Octávio Pinheiro Brisolla, 9–75, 17012–901, Bauru, São Paulo, Brazil
- * E-mail:
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