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Arantes DAC, Toledo ÍCD, de Arruda JAA, Mesquita RA, Castro LAD, Batista AC, Ribeiro-Rotta RF. Evaluation of peripheral nerve fibers and mast cells in burning mouth syndrome. Braz Oral Res 2023; 37:e055. [PMID: 37255075 DOI: 10.1590/1807-3107bor-2023.vol37.0055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 04/28/2022] [Accepted: 12/20/2022] [Indexed: 06/01/2023] Open
Abstract
Emerging evidence has revealed a cross-talk in the etiopathogenesis of burning mouth syndrome (BMS) related to peripheral nerve fibers (NF) and neuropeptides secreted by mast cells. Here, we investigated the S-100+ density and PGP 9.5+ integrity of peripheral NF and the tryptase+ mast cell density in the oral mucosa of BMS patients and healthy individuals. A total of 23 oral mucosa specimens (12 BMS and 11 controls) were evaluated. The clinical diagnosis of BMS was based on a careful examination, excluding other local and systemic causes. Samples were taken from an incisional biopsy of the tongue mucosa of individuals with symptomatic BMS, while the margins of the non-neoplastic tongue biopsy served as controls of healthy individuals. Immunohistochemistry was performed to determine the density/mm2 of S-100+, PGP 9.5+ peripheral NF, and tryptase+ mast cells. Similar densities of S-100+, PGP 9.5+ peripheral NF, and tryptase+ mast cells were found in cases of BMS, with a median value of 3.70, 0.70, and 29.24/mm2, respectively, and in the control group, with a median value of 2.60, 0.80, and 26.01/mm2, respectively (p > 0.05). Moreover, the relationship between S100+ and PGP 9.5+ peripheral NF was the same in both groups (p = 0.70). This study demonstrated that there were no alterations in the density and integrity of peripheral NF in the tongue of symptomatic BMS patients. However, the sensitization of peripheral NF in this disease may not depend on mast cell density.
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Affiliation(s)
- Diego Antonio Costa Arantes
- Universidade Federal de Goiás - UFG, School of Dentistry, Department of Oral Medicine, Goiânia, Goiás, Brazil
| | - Ítalo Cordeiro de Toledo
- Universidade Federal de Goiás - UFG, School of Dentistry, Department of Oral Medicine, Goiânia, Goiás, Brazil
| | - José Alcides Almeida de Arruda
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Departament of Oral Surgery, Pathology and Clinical Dentistry, Belo Horizonte, MG, Brazil
| | - Ricardo Alves Mesquita
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Departament of Oral Surgery, Pathology and Clinical Dentistry, Belo Horizonte, MG, Brazil
| | - Luciano Alberto de Castro
- Universidade Federal de Goiás - UFG, School of Dentistry, Department of Oral Medicine, Goiânia, Goiás, Brazil
| | - Aline Carvalho Batista
- Universidade Federal de Goiás - UFG, School of Dentistry, Department of Oral Medicine, Goiânia, Goiás, Brazil
| | - Rejane Faria Ribeiro-Rotta
- Universidade Federal de Goiás - UFG, School of Dentistry, Department of Oral Medicine, Goiânia, Goiás, Brazil
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Gomes HDS, Anabuki AA, Viana KA, Abreu LG, Batista AC, Hosey MT, Costa LR. Assessment of child's dental anxiety/fear and stress during dental treatment: a systematic review by CEDACORE. Braz Oral Res 2022; 36:e067. [PMID: 36507754 DOI: 10.1590/1807-3107bor-2022.vol36.0067] [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: 03/18/2021] [Accepted: 02/18/2022] [Indexed: 12/15/2022] Open
Abstract
There is a lack of evidence on the correlation between salivary biomarkers and subjective measures of dental fear and anxiety in children. This systematic review aimed to retrieve the scientific evidence comparing the results of dental anxiety measured by salivary biomarkers with patient-reported outcomes in pediatric dental setting. The PECOS was as follows: population: pediatric patients aged ≤ 18 years; exposure: patient-reported outcome measures, such as scales and/or questionnaires; comparator: salivary biomarkers; outcome: anxiety, fear, phobia or stress during dental treatment; study design: observational studies or controlled trials. Electronic searches were conducted in PubMed, Scopus, Web of Science, and Ovid databases. Studies that compared scales/questionnaires and salivary biomarkers for the evaluation of dental anxiety, fear, and stress in children/adolescents during dental treatment were included. Certainty of evidence was assessed with GRADE. Risk of bias of the included studies was assessed with the Cochrane tool or the University of Adelaide tool. From the 314 studies identified, eight were included. Participants' age ranged from three to 13 years. The most used salivary biomarkers and instruments were cortisol and the Dental Subscale of the Children's Fear Survey Schedule, respectively. Most studies showed a weak correlation between objective and subjective measures. The main issues regarding bias were on allocation concealment, blinding of assessors, follow up, and exposure assessment. Certainty of evidence was low/very low. Evidence of salivary biomarkers and patient-reported outcome measures to investigate anxiety, fear and stress in children during in the dental environment is limited. There was no correlation between subjective and objective measures in almost all included studies.
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Affiliation(s)
- Heloisa de Sousa Gomes
- Universidade Federal de Goiás - UFG, School of Dentistry, Postgraduate Program in Dentistry, Goiânia, GO, Brasil
| | - Anna Alice Anabuki
- Universidade Federal de Goiás - UFG, School of Dentistry, Postgraduate Program in Dentistry, Goiânia, GO, Brasil
| | - Karoline Alves Viana
- Universidade Federal de Goiás - UFG, School of Dentistry, Postgraduate Program in Dentistry, Goiânia, GO, Brasil
| | - Lucas Guimarães Abreu
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Department of Child and Adolescent Oral Health, Belo Horizonte, MG, Brasil
| | - Aline Carvalho Batista
- Universidade Federal de Goiás - UFG, School of Dentistry, Postgraduate Program in Dentistry, Goiânia, GO, Brasil
| | - Marie Therese Hosey
- King's College London, Centre for Oral Clinical and Translational Sciences, Faculty of Dentistry, Oral and Craniofacial, London, United Kingdom
| | - Luciane Rezende Costa
- Universidade Federal de Goiás - UFG, School of Dentistry, Postgraduate Program in Dentistry, Goiânia, GO, Brasil
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Arantes DAC, Silva ACGD, Lima EM, Alonso ECP, Marreto RN, Mendonça EF, Valadares MC, Batista AC. Biological effects of formulation containing curcuminoids and Bidens Pilosa L. in oral carcinoma cell line. Braz Oral Res 2021; 35:e063. [PMID: 34076188 DOI: 10.1590/1807-3107bor-2021.vol35.0063] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 01/18/2021] [Indexed: 12/18/2022] Open
Abstract
FITOPROT, which contains curcuminoids and Bidens pilosa L. extract, is an innovative mucoadhesive formulation indicated for the topical treatment of chemoradiotherapy-induced oral mucositis (OM) in patients with advanced and visible oral squamous cell carcinoma. The formulation is used as a mouthwash directly on tumor tissue of patients with advanced neoplasms, without triggering cancer cell proliferation or tumor invasiveness. Thus, the aim of this study was to evaluate the biological effects of FITOPROT on an oral squamous cell carcinoma cell line (SCC-4). The viability of SCC-4 cells was assessed after exposure to FITOPROT using MTT reduction assay. The effects of the mucoadhesive formulation on cell cycle progression and cell death parameters were evaluated using flow cytometry. In addition, the inflammatory profile of the tumor cells was evaluated using the cytometric bead array (CBA) assay. FITOPROT promoted a concentration-dependent decrease in cell viability and cell cycle arrest at the G2/M phase (p < 0.05). Mitochondrial membrane potential was also altered after exposure to the formulation (p < 0.05), in parallel with a reduction in VEGF and IL-8 production (p = 0.01 and p = 0.05, respectively). In summary, the results indicate that FITOPROT reduces SCC-4 cell viability, promotes cell cycle arrest, modulates mitochondrial membrane potential, and exhibits antiangiogenic and anti-inflammatory properties, thus indicating its potential for topical use in patients with OM and visible tumors in the mouth.
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Affiliation(s)
- Diego Antonio Costa Arantes
- Universidade Federal de Goiás - UFG, Dental School, Department of Stomatology (Oral Pathology), Goiânia, Brazil
| | - Artur Christian Garcia da Silva
- Universidade Federal de Goiás - UFG, Pharmacy Faculty, Laboratory of Education and Research in Toxicology in Vitro, Goiânia, GO, Brazil
| | - Eliana Martins Lima
- Universidade Federal de Goiás - UFG, Pharmacy Faculty, Laboratory of Pharmaceutical Technology, Goiânia, GO, Brazil
| | - Ellen Cristine Pineze Alonso
- Universidade Federal de Goiás - UFG, Pharmacy Faculty, Laboratory of Nanosystems and Modified-Release Drugs Devices, Goiânia, GO, Brazil
| | - Ricardo Neves Marreto
- Universidade Federal de Goiás - UFG, Pharmacy Faculty, Laboratory of Nanosystems and Modified-Release Drugs Devices, Goiânia, GO, Brazil
| | | | - Marize Campos Valadares
- Universidade Federal de Goiás - UFG, Pharmacy Faculty, Laboratory of Pharmacology and Cellular Toxicology, Goiânia, GO, Brazil
| | - Aline Carvalho Batista
- Universidade Federal de Goiás - UFG, Dental School, Department of Stomatology (Oral Pathology), Goiânia, Brazil
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Couto AMD, Meirelles DP, Valeriano AT, Almeida DSD, Moraes ÊD, Tarquinio SBC, Batista AC, MendonÇa EFD, Costa NDL, Alves PM, Nonaka CFW, Abreu LG, Aguiar MCFD. Chronic inflammatory periapical diseases: a Brazilian multicenter study of 10,381 cases and literature review. Braz Oral Res 2021; 35:e033. [PMID: 33729278 DOI: 10.1590/1807-3107bor-2021.vol35.0033] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 10/22/2020] [Indexed: 01/05/2023] Open
Abstract
The aim of this study was to investigate the epidemiological and clinical characteristics of chronic inflammatory periapical diseases in different regions of Brazil and to compare with data from the literature. A multicenter study was carried out in four Brazilian referral centers in oral diagnosis. Histopathological records were reviewed, and all cases diagnosed microscopically as periapical granuloma, radicular cyst, and periapical abscess were included. Demographic and clinical data were collected. Descriptive statistics and Pearson's chi-square test were performed. A total of 10,381 cases of chronic inflammatory periapical diseases were found (13.8% of 74,931 archived specimens) over a period of 65 years. Radicular cysts were the most common lesion (59.9%). Women (56.1%) with a mean age of 37.01 years old (range 13 to 100 ± 14.42) and people of white skin color (59.2%) were the most affected individuals by chronic inflammatory periapical diseases. The lesions were generally asymptomatic (28.1%), located in the maxilla (60.1%), and posterior region (49.8%). The radicular cysts were larger when compared to periapical granulomas (p < 0.001). The disagreement between the clinical and histopathological diagnoses was higher when the final diagnosis was a periapical granuloma (p < 0.001). Chronic inflammatory periapical diseases continue to be common lesions affecting mainly adults. This should be a consequence of the burden of untreated caries in permanent teeth. Women are more affected and radicular cyst was the most common lesion.
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Affiliation(s)
- Aline Maria do Couto
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Department of Oral Surgery and Pathology, Belo Horizonte, MG, Brazil
| | - Daniela Pereira Meirelles
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Department of Oral Surgery and Pathology, Belo Horizonte, MG, Brazil
| | - Alline Teixeira Valeriano
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Department of Oral Surgery and Pathology, Belo Horizonte, MG, Brazil
| | - Douglas Silva de Almeida
- Universidade Federal de Pelotas - UFPel, School of Dentistry, Department of Semiology and Clinics, Pelotas, RS, Brazil
| | - Êmile de Moraes
- Universidade Federal de Pelotas - UFPel, School of Dentistry, Department of Semiology and Clinics, Pelotas, RS, Brazil
| | | | - Aline Carvalho Batista
- Universidade Federal de Goiás - UFGO, School of Dentistry, Department of Stomatology (Oral Pathology), Goiânia GO, Brazil
| | | | - Nádia do Lago Costa
- Universidade Federal de Goiás - UFGO, School of Dentistry, Department of Stomatology (Oral Pathology), Goiânia GO, Brazil
| | - Pollianna Muniz Alves
- Universidade Estadual da Paraíba - UFPB, School of Dentistry, Department of Dentistry, Campina Grande PB, Brazil
| | | | - Lucas Guimarães Abreu
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Department of Pediatric Dentistry and Orthodontics, Belo Horizonte, MG, Brazil
| | - Maria Cássia Ferreira de Aguiar
- Universidade Federal de Minas Gerais - UFMG, School of Dentistry, Department of Oral Surgery and Pathology, Belo Horizonte, MG, Brazil
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Martins AFL, Morais MO, de Sousa-Neto SS, de Jesus APG, Nogueira TE, Valadares MC, Freitas NMA, Batista AC, Leles CR, Mendonça EF. Photobiomodulation reduces the impact of radiotherapy on oral health-related quality of life due to mucositis-related symptoms in head and neck cancer patients. Lasers Med Sci 2020; 36:903-912. [PMID: 33113075 DOI: 10.1007/s10103-020-03167-z] [Citation(s) in RCA: 2] [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: 04/15/2020] [Accepted: 10/21/2020] [Indexed: 10/23/2022]
Abstract
To assess the effectiveness of photobiomodulation therapy (PBMT) in the oral health-related quality of life (OHRQoL) of patients with head and neck cancer undergoing radiotherapy (RT), using the Oral Health Impact Profile-14 (OHIP-14) and the Patient-Reported Oral Mucositis (OM) Symptoms Scale (PROMS), and to correlate OM degree with the PROMS and OHIP-14 scores. Forty-eight patients undergoing RT for head and neck cancer were randomly assigned into two groups: PBMT group (n = 25)-daily PBMT associated with a preventive oral care program (POCP); and control group (n = 23)-receiving POCP exclusively. OHRQoL was assessed using the PROMS and OHIP-14 questionnaires. OM degrees were classified according to the World Health Organization and the National Cancer Institute scales. Assessments were performed at the 1st, 7th, 14th, 21st, and 30th RT sessions. PBMT was effective in preventing and treating severe OM. Both groups showed increased OHRQoL impacts throughout the RT sessions; however, higher impacts were observed in the control group, mainly at the final stage of treatment (21st and 30th RT sessions). Significant correlations were found between the severity of OM and PROMS scores in the total sample and the control group at all RT periods. PROMS and OM scores were positive correlated at 14th, 21st, and 30th RT sessions in the control group, suggesting that this instrument is useful in classifying OM. PBMT was effective in treating and preventing severe OM and OM-related symptoms, and with consequent positive impacts in OHRQoL in head and neck patients undergoing RT. The PROMS scale was helpful instrument for assessment of the severity of OM. Brazilian Clinical Trials database (ReBEC - RBR-5h4y4n), registered in Aug, 24th 2017.
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Affiliation(s)
- Allisson Filipe Lopes Martins
- Laboratório de Patologia Oral, Faculdade de Odontologia, Universidade Federal de Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n, Setor Universitário, Goiânia, Goiás, 74605-220, Brazil
| | - Marília Oliveira Morais
- Hospital de Câncer Araújo Jorge, R. 239, 206 - Setor Universitário, Goiânia, Goiás, 74175-120, Brazil
| | - Sebastião Silvério de Sousa-Neto
- Laboratório de Patologia Oral, Faculdade de Odontologia, Universidade Federal de Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n, Setor Universitário, Goiânia, Goiás, 74605-220, Brazil
| | - Ana Paula Gonçalves de Jesus
- Laboratório de Patologia Oral, Faculdade de Odontologia, Universidade Federal de Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n, Setor Universitário, Goiânia, Goiás, 74605-220, Brazil
| | - Tulio Eduardo Nogueira
- Departamento de Prevenção e Reabilitação Oral da Faculdade de Odontologia, Universidade Federal de Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n, Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Marize Campos Valadares
- Laboratório de Farmacologia e Toxicologia Celuular, Faculdade de Farmácia, Universidade Federal de Goiás, 5ª Avenida Esquina com Rua 240, s/n, Setor Universitário, Goiânia, Goiás, 74605-170, Brazil
| | - Nilceana Maya Aires Freitas
- Departamento de Radioterapia, Hospital de Câncer Araújo Jorge, R. 239, 206-Setor Universitário, Goiânia, Goiás, 74175-120, Brazil
| | - Aline Carvalho Batista
- Laboratório de Patologia Oral, Faculdade de Odontologia, Universidade Federal de Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n, Setor Universitário, Goiânia, Goiás, 74605-220, Brazil
| | - Cláudio Rodrigues Leles
- Departamento de Prevenção e Reabilitação Oral da Faculdade de Odontologia, Universidade Federal de Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n, Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Elismauro Francisco Mendonça
- Laboratório de Patologia Oral, Faculdade de Odontologia, Universidade Federal de Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n, Setor Universitário, Goiânia, Goiás, 74605-220, Brazil.
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Costa NL, Gonçalves JAM, de Lima SLG, de Arruda JAA, Miranda ACC, Mesquita RA, da Silveira ÉJD, Batista AC. Evaluation of PD-L1, PD-L2, PD-1 and cytotoxic immune response in oral lichen planus. Oral Dis 2020; 26:1246-1254. [PMID: 32259363 DOI: 10.1111/odi.13344] [Citation(s) in RCA: 9] [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: 12/07/2019] [Revised: 03/19/2020] [Accepted: 03/25/2020] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To investigate the expression of programmed death-ligands 1 and 2 (PD-L1, PD-L2), programmed death-1 (PD-1), CD8 and granzyme B (GrB), as well as its correlation with the severity of oral lichen planus (OLP). MATERIALS AND METHODS In a collaborative study, 33 cases of OLP were evaluated according to the latest criteria proposed by the American Academy of Oral and Maxillofacial Pathology (AAOMP/2016) and were submitted to immunohistochemistry. Positivity was measured semiquantitatively (PD-L1, PD-L2) and quantitatively (PD-1, CD8, GrB). The severity of OLP was assessed according to clinical subtype, symptomatology and response to corticosteroid therapy. RESULTS Most OLPs were considered to be negative for PD-L1 (66.6%), but high expression of PD-L2 (96.9%) by keratinocytes and immunoinflammatory cells was observed. PD-1+ cell density/mm2 was reduced compared to CD8+ cells. A low cytotoxic immune response (CD8:GrB ratio) was also demonstrated. Interestingly, there were fewer GrB+ cells in the intraepithelial region in reticular OLP compared to erosive/bullous OLP. CONCLUSIONS PD-L1/PD-1 pathways appear to be compromised in OLP due to low PD-L1 expression in most samples. In contrast, PD-L2 overexpression associated with a possible regulation of the cytotoxic immune response suggests an immune tolerance that may contribute to the chronic profile of OLP.
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Affiliation(s)
- Nádia Lago Costa
- Department of Stomatology (Oral Medicine and Oral Pathology), School of Dentistry, Universidade Federal de Goiás, Goiânia, Brazil
| | - Julie Ane Maria Gonçalves
- Department of Stomatology (Oral Medicine and Oral Pathology), School of Dentistry, Universidade Federal de Goiás, Goiânia, Brazil
| | - Sara Lia Gonçalves de Lima
- Department of Stomatology (Oral Medicine and Oral Pathology), School of Dentistry, Universidade Federal de Goiás, Goiânia, Brazil
| | - José Alcides Almeida de Arruda
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ana Carolina Campos Miranda
- Department of Stomatology (Oral Medicine and Oral Pathology), School of Dentistry, Universidade Federal de Goiás, Goiânia, Brazil
| | - Ricardo Alves Mesquita
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Éricka Janine Dantas da Silveira
- Postgraduate Program in Odontology Sciences, Department of Dentistry, Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Aline Carvalho Batista
- Department of Stomatology (Oral Medicine and Oral Pathology), School of Dentistry, Universidade Federal de Goiás, Goiânia, Brazil
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Amaral MGD, Sena LSBD, Batista AC, MendonÇa EF, GordÓn-NÚÑez MA, Alves PM, Nonaka CFW. FoxP3+ regulatory T cells in oral tongue squamous cell carcinoma in young and older patients. Braz Oral Res 2020; 34:e096. [PMID: 32813838 DOI: 10.1590/1807-3107bor-2020.vol34.0096] [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: 12/07/2019] [Accepted: 04/16/2020] [Indexed: 11/21/2022] Open
Abstract
Regulatory T (Treg) cells can suppress antitumor immune response, but little is known about possible age-related differences in the number of these cells in the microenvironment of oral tongue squamous cell carcinoma (OTSCC). The aim of this study was to determine the number of FoxP3+ Treg cells in the microenvironment of OTSCC in young (≤ 45 years) and older (≥ 60 years) patients, and to correlate the findings with clinicopathological parameters (sex, tumor size/extent, regional lymph node metastasis, clinical staging, and histopathological grade of malignancy). Forty-eight OTSCCs (24 diagnosed in young patients and 24 diagnosed in older patients) were selected. Lymphocytes exhibiting nuclear immunopositivity for FoxP3 were quantified at the tumor invasive front and the results were analyzed statistically using the non-parametric Mann-Whitney test. FoxP3+ lymphocytes were observed in all cases assessed. The number of FoxP3+ lymphocytes in OTSCC tended to be higher in older patients (p = 0.055). Analysis of OTSCC in males and in early clinical stages revealed a higher number of Treg cells in older patients than in young ones (p < 0.05). In older patients, the number of Treg cells tended to be higher in smaller tumors (p = 0.079). Tumors with intense inflammatory infiltrate exhibited a larger number of Treg cells, both in young (p = 0.099) and older patients (p = 0.005). The results suggest a greater participation of Treg cells in immunoinflammatory responses in the microenvironment of OTSCC in older patients, particularly in males and in early stages.
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Affiliation(s)
| | | | - Aline Carvalho Batista
- Department of Stomatology, School of Dentistry, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | | | | | - Pollianna Muniz Alves
- Department of Dentistry, Universidade Estadual da Paraíba, Campina Grande, PB, Brazil
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Andrade WM, da Silva ACG, Moreira LC, Gomes TRLES, Batista AC, Valadares MC. Innovative strategy based on mechanisms to substitute animal testing for ocular toxicity assessment of agrochemical formulations market in Brazil. Toxicol In Vitro 2020; 66:104851. [PMID: 32259559 DOI: 10.1016/j.tiv.2020.104851] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 02/27/2020] [Accepted: 04/03/2020] [Indexed: 12/14/2022]
Abstract
Considering the successful employment of alternative methods for eye toxicity assessment of products for regulatory purposes, and the recent advances in Brazilian legislative scenario, which adopted the UN GHS classification system for agrochemical formulations toxicity assessment, there is an emerging demand for strategies that allow the evaluation of such products. Based on this, the present study aimed to address the applicability of a mechanistic-based defined approach for eye toxicity assessment of agrochemical formulations. It was investigated the opacity/permeability, depth and location of corneal injury in bovine cornea, and vascular events in chorioallantoic membrane induced for different Brazilian agrochemicals using a Sequential Testing Strategy (STS). Cytotoxicity induced by the agrochemical formulations was evaluated by Short Time exposure (STE) (OECD TG 491) assay (step 1), corneal injury was investigated by standard Bovine Corneal Opacity and Permeability (BCOP) (OECD TG 437) followed by histopathological evaluation (step 2), and Hen Chorionic-allantoic Membrane test (HET-CAM) was used to evaluate vascular injury (step 3). The results demonstrated that the proposed defined approach enabled a classification corresponding UN GHS classification of agrochemical formulations while minimizing the use of live animals. Therefore, this approach may be useful for categorization of agrochemicals in Brazil according to the new regulatory scenario.
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Affiliation(s)
- Wanessa Machado Andrade
- Laboratory of Education and Research in In Vitro Toxicology, Tox In, Faculty of Pharmacy, Federal University of Goiás, Goiânia, GO, Brazil
| | - Artur Christian Garcia da Silva
- Laboratory of Education and Research in In Vitro Toxicology, Tox In, Faculty of Pharmacy, Federal University of Goiás, Goiânia, GO, Brazil
| | - Larissa Cleres Moreira
- Laboratory of Education and Research in In Vitro Toxicology, Tox In, Faculty of Pharmacy, Federal University of Goiás, Goiânia, GO, Brazil
| | | | - Aline Carvalho Batista
- Laboratory of Oral Pathology, Dental School, Federal University of Goiás, Goiânia, GO, Brazil
| | - Marize Campos Valadares
- Laboratory of Education and Research in In Vitro Toxicology, Tox In, Faculty of Pharmacy, Federal University of Goiás, Goiânia, GO, Brazil.
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Teófilo CR, Ferreira Junior AEC, Batista AC, Fechini Jamacaru FV, Sousa FB, Lima Mota MR, Silva MFE, Barros Silva PGD, Alves APNN. Mast Cells and Blood Vessels Profile in Oral Carcinogenesis: An Immunohistochemistry Study. Asian Pac J Cancer Prev 2020; 21:1097-1102. [PMID: 32334476 PMCID: PMC7445991 DOI: 10.31557/apjcp.2020.21.4.1097] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Indexed: 01/04/2023] Open
Abstract
Background: The objectives of the present study were to evaluate angiogenesis and mast cell density in oral epithelial dysplasia and oral squamous cell carcinoma (OSCC). Materials and Methods: This was an observational, retrospective and quantitative study. The samples consisted of 60 tissue specimens from patients with squamous cell carcinoma, epithelial dysplasia and controls (n=20/group). Immunohistochemistry was performed using an anti-tryptase antibody to mast cells and anti-CD31 and anti-CD34 for blood vessels and we count the number of mast cells and determine the percentage of CD31 and CD34 antibody staining (vascular density). Results: The mast cells had lower density in OSCC compared to control and dysplasia (p = 0.009). In angiogenesis, the expression of CD31 showed a higher percentage of blood vessels in OSCC (p < 0.001), however, CD34 showed no difference between groups (p=0.092). The CD31 antibody presented as a high immunostaining in oral mucosa than CD34. Conclusions: The increased vascularity in squamous cell carcinoma suggests that angiogenesis begins when malignant transformation starts that seems to be inversely associated with the number of mast cells.
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Affiliation(s)
- Carolina Rodrigues Teófilo
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | | | - Aline Carvalho Batista
- Oral Rehabilitation and Preventive Department, Dental School, Federal University of Goias, Goiana, Brazil
| | | | - Fabricio Bitu Sousa
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Mário Rogério Lima Mota
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Malena Freitas E Silva
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Paulo Goberlânio De Barros Silva
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
| | - Ana Paula Negreiros Nunes Alves
- Department of Dental Clinic, Division of Oral Pathology, Faculty of Pharmacy, Dentistry and Nursing, Federal University of Ceará, Fortaleza, Brazil
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10
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de Arruda JAA, Arantes DAC, Schuch LF, Mosconi C, Abreu LG, de Andrade BAB, Romañach MJ, Mesquita RA, Silva TA, Batista AC, Mendonça EF. A Rare Case of an Aggressive Clear Cell Variant of Calcifying Epithelial Odontogenic Tumor in the Posterior Maxilla. Int J Surg Pathol 2020; 28:526-535. [PMID: 31986944 DOI: 10.1177/1066896920901755] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A clear cell variant of calcifying epithelial odontogenic tumor is a rare benign odontogenic neoplasm, accounting for 33 cases described in the literature. In this article, we report a challenging example of clear cell variant of calcifying epithelial odontogenic tumor of the posterior maxilla in a 45-year-old female patient showing locally aggressive growth and recurrence. Microscopically, islands of polyhedral cells containing abundant cytoplasm, well-developed intercellular bridges blended with clear cells were observed. The nuclei were frequently pleomorphic and permeated by hyaline calcified material. Immunohistochemistry revealed positivity for pan-cytokeratin (AE1/AE3), cytokeratins (CK-14 and CK-19), Bcl-2, p53, and p63. The Ki-67 proliferative index was ~10%. As odontogenic tumors are rare, when a significant clear cell component is observed, the differential diagnosis with other lesions of the jaws with similar morphology, including other odontogenic tumors with prominent clear cell component, clear cell odontogenic carcinomas, and metastatic tumors, is difficult.
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Affiliation(s)
| | | | | | - Carla Mosconi
- Universidade Federal de Goiás, Goiânia, Goiás, Brazil
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11
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da Silva KD, Coelho LV, do Couto AM, de Aguiar MCF, Tarquínio SBC, Gomes APN, Mendonça EF, Batista AC, Nonaka CFW, de Sena LSB, Alves PM, Libório-Kimura TN, Louredo BVR, Câmara J, Caldeira PC. Clinicopathological and immunohistochemical features of the oral lymphoepithelial cyst: A multicenter study. J Oral Pathol Med 2019; 49:219-226. [PMID: 31782199 DOI: 10.1111/jop.12978] [Citation(s) in RCA: 10] [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: 09/25/2019] [Revised: 11/18/2019] [Accepted: 11/23/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND Analyze the clinical, demographic, histopathological, and immunohistochemical features of oral lymphoepithelial cyst (OLEC). METHODS Samples were retrospectively retrieved from five oral pathology services. Clinical and demographic data were collected from patient charts. Histopathological and immunohistochemical (CD3 and CD20) features were evaluated. Data analysis involved descriptive statistics and bivariate analyses (P ≤ .05). RESULTS Seventy-seven cases were found among a total of 146 150 specimens (0.05%). OLEC was predominantly diagnosed in females (70.1%). Mean patient age was 46.51 years. The lesions arose mainly on the lateral border of the tongue (40.3%), measured up to 1 cm (61.0%), and were asymptomatic (64.9%). Twenty-four lesions (31.2%) were white. Forty-one cases (53.2%) presented lymphocytic inflammatory infiltrate with no specific arrangement. The cystic lining was composed of a non-keratinized stratified epithelium (59.7%) presenting hyperplasia (39.0%). Connection with the surface, epithelium was found in 23 cases (29.9%) and 31 (40.3%) cases had two or more cystic cavities. The lumen content was predominantly desquamated cells (48.1%). Subgemmal neurogenous plaque was found in 11/42 (26.2%) cases involving the tongue. CD20+ cells predominated in 36/63 cases (57.2%), and lymphocytic inflammatory infiltrate was not always continuous around the cystic cavity (52.4%). CONCLUSION Lymphoepithelial cyst is an uncommon lesion of the oral cavity. The present study offers the largest sample of OLEC for which clinical, demographic, histopathological, and immunohistochemical features were evaluated. The clinical and demographic findings were similar to those described in previous reports, but the microscopic analyses revealed interesting aspects of the cystic epithelium and the lymphocytic inflammatory infiltrate in OLEC.
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Affiliation(s)
- Karine Duarte da Silva
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luiza Vale Coelho
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Aline Maria do Couto
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Ana Paula Neutzling Gomes
- Department of Semiology and Clinics, School of Dentistry, Universidade Federal de Pelotas, Pelotas, Brazil
| | | | - Aline Carvalho Batista
- Department of Stomatological Sciences, School of Dentistry, Universidade Federal de Goiás, Goiânia, Brazil
| | | | | | - Pollianna Muniz Alves
- Department of Dentistry, School of Dentistry, Universidade Estadual da Paraíba, Campina Grande, Brazil
| | | | | | - Jeconias Câmara
- Department of Pathology and Forensic Medicine, School of Medicine, Universidade Federal do Amazonas, Manaus, Brazil
| | - Patrícia Carlos Caldeira
- Department of Oral Pathology and Surgery, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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12
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Barnabé LÉG, Batista AC, Mendonça EFD, Nonaka CFW, Alves PM. Cell cycle markers and apoptotic proteins in oral tongue squamous cell carcinoma in young and elderly patients. Braz Oral Res 2019; 33:e103. [PMID: 31778473 DOI: 10.1590/1807-3107bor-2019.vol33.0103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 09/18/2019] [Indexed: 12/22/2022] Open
Abstract
The immunoexpression of p16, p53, and Bax in oral tongue squamous cell carcinoma (OTSCC) in young and elderly patients is assessed based on clinical and morphological parameters. The sample consists of 60 OTSCC cases: 30 in young (age ≤ 45 years) and 30 in elderly (age ≥ 60 years) patients. Clinical (tumor size, regional node metastasis, distant metastasis, and clinical stage) and morphological (histological grade of malignancy) parameters were evaluated. Immunohistochemical quantitative analysis was performed using anti-p16, anti-p53, and anti-Bax antibodies. None of the evaluated proteins exhibited statistically significant differences between young and elderly patients (p>0.05). There was a significant association of p16 immunoexpression with clinical parameters in elderly patients. There were no associations of p53 and Bax with any of the clinico-morphological parameters. Correlations between p16 and Bax and between p53 and Bax immunoexpression were observed in young patients (r = 0.363; p = 0.048) and in elderly patients (r = 0.433; p = 0.017), respectively. In conclusion, the assessed proteins could not be used to determine differences in the biological behavior of OTSCC between young and elderly patients. Therefore, all proteins activated the pro-apoptotic pathway of OTSCC in both groups.
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Affiliation(s)
- Luan Éverton Galdino Barnabé
- Universidade Estadual da Paraíba - UEPB, Department of Dentistry, Graduate Program in Dentistry, Campina Grande, PB, Brazil
| | - Aline Carvalho Batista
- Universidade Federal Goiás - UFG, Department of Dentistry, Graduate Program in Dentistry, Goiânia, GO, Brazil
| | | | | | - Pollianna Muniz Alves
- Universidade Estadual da Paraíba - UEPB, Department of Dentistry, Graduate Program in Dentistry, Campina Grande, PB, Brazil
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13
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de Carvalho WRS, de Souza LL, Pontes FSC, Uchôa DCC, Corrêa DL, de Cáceres CVBL, Lopes MA, Santos-Silva AR, Vargas PA, de Andrade BAB, Romañach M, Gomez RS, Costa SFDS, Batista AC, Mendonça EF, Pinto DDS, Gondak R, da Cruz Perez DE, Nonaka C, Dos Santos JN, Libório-Kimura TN, Câmara J, Ramôa Pires F, de Souza LB, Martins MD, de Almeida OP, Fonseca FP, Pontes HAR. A multicenter study of oral sarcomas in Brazil. Oral Dis 2019; 26:43-52. [PMID: 31605560 DOI: 10.1111/odi.13211] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [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: 06/03/2019] [Revised: 07/20/2019] [Accepted: 07/22/2019] [Indexed: 12/21/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the prevalence of oral sarcomas from geographic regions of Brazil. MATERIALS AND METHODS A cross-sectional study was conducted on biopsies obtained from January 2007 to December 2016 at twelve Brazilian oral and maxillofacial pathology centres. Gender, age, evolution time, clinical aspects, tumour location, tumour size at diagnosis, radiographic aspects and histopathological diagnosis were evaluated. Data were analysed using descriptive statistical methods. RESULTS From 176,537, a total of 200 (0.11%) oral sarcomas were reported, and the most prevalent were osteosarcomas (74 cases; 37%) and Kaposi's sarcomas (52 cases; 26%). Males were more affected than females at a mean age of 32.2 years old (range of 3-87 years). The most common symptoms were swelling¸ localised pain and bleeding at a mean evolution time of 5.14 months (range <1-156 months). The lesions were mostly observed in the mandible (90 cases; 45%), with a mean tumour size of 3.4 cm (range of 0.3-15 cm). Radiographically, the lesions presented a radiolucent aspect showing cortical bone destruction and ill-defined limits. CONCLUSIONS Oral sarcomas are rare lesions with more than 50 described subtypes. Osteosarcomas and Kaposi's sarcomas were the main sarcomas of the oral cavity in Brazil.
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Affiliation(s)
- Waldner Ricardo Souza de Carvalho
- Service of Oral Pathology, João de Barros Barreto University Hospital, Federal University of Pará, Belém, Brazil.,Oral Diagnosis Department (Pathology and Semiology), Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Lucas Lacerda de Souza
- Service of Oral Pathology, João de Barros Barreto University Hospital, Federal University of Pará, Belém, Brazil
| | | | | | - Davi Lavareda Corrêa
- Service of Oral Pathology, João de Barros Barreto University Hospital, Federal University of Pará, Belém, Brazil
| | | | - Márcio Ajudarte Lopes
- Oral Diagnosis Department (Pathology and Semiology), Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Alan Roger Santos-Silva
- Oral Diagnosis Department (Pathology and Semiology), Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Pablo Agustin Vargas
- Oral Diagnosis Department (Pathology and Semiology), Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | | | - Mário Romañach
- Oral Pathology, Dental School, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ricardo Santiago Gomez
- Department of Oral Surgery and Pathology, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Sara Ferreira Dos Santos Costa
- Department of Oral Surgery and Pathology, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | | | | | - Rogério Gondak
- Department of Pathology, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | - Cassiano Nonaka
- Post-graduate Program of Dentistry, State University of Paraíba, Campina Grande, Brazil
| | - Jean Nunes Dos Santos
- Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | | | - Jeconias Câmara
- Department of Pathology and Legal Medicine, Federal University of Amazonas, Manaus, Brazil
| | - Fábio Ramôa Pires
- Oral Pathology, Dental School, State University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lélia Batista de Souza
- Postgraduate Program in Oral Pathology, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Manoela Domingues Martins
- Department of Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Oslei Paes de Almeida
- Oral Diagnosis Department (Pathology and Semiology), Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Felipe Paiva Fonseca
- Department of Oral Surgery and Pathology, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Hélder Antônio Rebelo Pontes
- Service of Oral Pathology, João de Barros Barreto University Hospital, Federal University of Pará, Belém, Brazil.,Oral Diagnosis Department (Pathology and Semiology), Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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14
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Gomes HS, Daher A, Costa PS, Batista AC, Costa LR. Crossover Studies of Pediatric Dental Sedation are Inappropriate. Braz Dent J 2019; 30:404-409. [PMID: 31340232 DOI: 10.1590/0103-6440201902852] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Accepted: 04/04/2019] [Indexed: 11/22/2022] Open
Abstract
Crossover studies continue to be published in spite of warnings about their inherent risks in relation to behavioral outcomes. This study took the opportunity of access to secondary data analysis in order to demonstrate the impact of a crossover design on the outcomes of randomized clinical trials aimed at the behavior of children during dental treatment. We evaluated the effect of the sequence of sedative administration, the sedative and the participant's age on the behavior of children undergoing two sequential dental visits. Eighteen uncooperative healthy young children were equally randomly assigned to: (G1) 1.0 mg/kg oral midazolam (first session) and oral placebo (second session); (G2) oral placebo (first) and 1.0 mg/kg oral midazolam (second). One trained observer assessed children's behavior. Data were analyzed by three-way mixed ANOVA. Both midazolam [mean(SD); 71.7%(16.5)] and placebo [48.6%(33.1)] produced more struggling behavior when they were administered in the first session compared to the second one (p=0.001). For the placebo, children aged 2-3 years exhibited more struggling behavior [G1 54.9%(36.2); G2 80.5%(8.3)] than those aged 4-5 years (p=0.04). Also, the reduction of percentage of struggling behavior was higher in G1 for older children (76.2%) and in G2 for younger children (32.9%). There were significant interactions between drug and sequence of administration, and between drug and age. The results of our study confirm the conventional wisdom that crossover study design is inappropriate to evaluate children's behavior/anxiety related-dental treatment under sedation and the results of crossover studies of dental sedation should be treated with extreme caution.
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Affiliation(s)
- Heloisa Sousa Gomes
- Faculdade de Odontologia, UNIFENAS - Universidade José do Rosário Vellano, Alfenas, MG, Brazil
| | - Anelise Daher
- Faculdade de Odontologia, UFG - Universidade Federal de Goiás, Goiânia, GO, Brazil
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15
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Estrela C, Carmo Souza PO, Barbosa MG, Aburad de Carvalhosa A, Batista AC, Pinto Júnior DDS, Yamamoto-Silva FP, de Freitas Silva BS. Mesenchymal Stem Cell Marker Expression in Periapical Abscess. J Endod 2019; 45:716-723. [DOI: 10.1016/j.joen.2019.03.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 02/27/2019] [Accepted: 03/16/2019] [Indexed: 12/31/2022]
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16
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da Silva JM, dos Santos TPM, Saraiva AM, Fernandes de Oliveira AL, Garlet GP, Batista AC, de Mesquita RA, Russo RC, da Silva TA. Role of atypical chemokine receptor ACKR2 in experimental oral squamous cell carcinogenesis. Cytokine 2019; 118:160-167. [DOI: 10.1016/j.cyto.2018.03.001] [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: 10/06/2017] [Revised: 02/27/2018] [Accepted: 03/01/2018] [Indexed: 12/30/2022]
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17
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Coura BP, Bernardes VF, de Sousa SF, França JA, Pereira NB, Pontes HAR, Batista AC, da Cruz Perez DE, Albuquerque Junior RLCD, de Souza LB, Martins MD, Diniz MG, Gomez RS, Gomes CC. KRAS mutations drive adenomatoid odontogenic tumor and are independent of clinicopathological features. Mod Pathol 2019; 32:799-806. [PMID: 30643167 DOI: 10.1038/s41379-018-0194-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/22/2018] [Accepted: 11/23/2018] [Indexed: 11/09/2022]
Abstract
Adenomatoid odontogenic tumor is a benign encapsulated epithelial odontogenic tumor that shows an indolent clinical behavior. We have reported in a few adenomatoid odontogenic tumors mutations in KRAS, which is a proto-oncogene frequently mutated in cancer such as lung, pancreas, and colorectal adenocarcinomas. We aimed to assess KRAS mutations in the hotspot codons 12, 13, and 61 in a large cohort of adenomatoid odontogenic tumors and to test the association of these mutations with clinical (age, site, tumor size, follicular/extrafollicular subtypes) and histopathological parameters. Thirty eight central cases were studied. KRAS codon 12 mutations were assessed by TaqMan allele-specific qPCR (p.G12V/R) and/or Sanger sequencing, and codon 13 and 61 mutations were screened by Sanger. Histological tumor capsule thickness was evaluated by morphometric analysis. Additionally, the phosphorylated form of the MAPK downstream effector ERK1/2 was investigated. Statistical analysis was carried out to test the association of KRAS mutations with clinicopathological parameters. KRAS c.35 G >T mutation, leading to p.G12V, was detected in 15 cases. A novel mutation in adenomatoid odontogenic tumor, c.34 G >C, leading to p.G12R, was detected in 12 cases and the other 11 were wild-type. Codon 12 mutations were not associated with the clinicopathological parameters tested. RAS mutations are known to activate the MAPK pathway, and we show that adenomatoid odontogenic tumors express phosphorylated ERK1/2. In conclusion, a high proportion of adenomatoid odontogenic tumors (27/38, 71%) have KRAS codon 12 mutations, which occur independently of the clinicopathological features evaluated. Collectively, these findings indicate that KRAS mutations and MAPK pathway activation are the common features of this tumor and some cancer types. Although it is unclear why different codon 12 alleles occur in different disease contexts and the complex interactions between tumor genotype and phenotype need clarification, on the basis of our results the presence of KRAS p.G12V/R favors the adenomatoid odontogenic tumor diagnosis in challenging oral neoplasm cases.
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Affiliation(s)
- Bruna Pizziolo Coura
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Vanessa Fátima Bernardes
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Sílvia Ferreira de Sousa
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Josiane Alves França
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Núbia Braga Pereira
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Hélder Antônio Rebelo Pontes
- Service of Oral Pathology, João de Barros Barreto University Hospital, Universidade Federal do Pará (UFPA), Belém, Brazil
| | - Aline Carvalho Batista
- Department of Oral Pathology, School of Dentistry, Universidade Federal de Goiás (UFG), Goiânia, Brazil
| | - Danyel Elias da Cruz Perez
- Department of Clinical and Preventive Dentistry, Universidade Federal de Pernambuco (UFPE), Recife, Brazil
| | | | - Lélia Batista de Souza
- Department of Dentistry, Service of Oral Pathology, Universidade Federal do Rio Grande do Norte (UFRN), Natal, Brazil
| | - Manoela Domingues Martins
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
| | - Marina Gonçalves Diniz
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Ricardo Santiago Gomez
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Carolina Cavalieri Gomes
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil.
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18
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Martins AFL, Nogueira TE, Morais MO, Oton-Leite AF, Valadares MC, Batista AC, Freitas NMA, Leles CR, Mendonça EF. Effect of photobiomodulation on the severity of oral mucositis and molecular changes in head and neck cancer patients undergoing radiotherapy: a study protocol for a cost-effectiveness randomized clinical trial. Trials 2019; 20:97. [PMID: 30709370 PMCID: PMC6359861 DOI: 10.1186/s13063-019-3196-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 07/31/2018] [Accepted: 01/14/2019] [Indexed: 01/28/2023] Open
Abstract
Background Oral mucositis (OM) is the most frequent and debilitating acute side effect associated with head and neck cancer (HNC) treatment. When present, severe OM negatively impacts the quality of life of patients undergoing HNC treatment. Photobiomodulation is a well-consolidated and effective therapy for the treatment and prevention of severe OM, and is associated with a cost reduction of the cancer treatment. Although an increase in the quality of life and a reduction in the severity of OM are well described, there is no study on cost-effectiveness for this approach considering the quality of life as a primary outcome. In addition, little is known about the photobiomodulation effects on salivary inflammatory mediators. Thus, this study aimed to assess the cost-effectiveness of the photobiomodulation therapy for the prevention and control of severe OM and its influence on the salivary inflammatory mediators. Methods/design This randomized, double-blind clinical trial will include 50 HNC patients undergoing radiotherapy or chemoradiotherapy. The participants will be randomized into two groups: intervention group (photobiomodulation) and control group (preventive oral care protocol). OM (clinical assessment), saliva (assessment of collected samples) and quality of life (Oral Health Impact Profile-14 and Patient-Reported Oral Mucositis Symptoms questionnaires) will be assessed at the 1st, 7th, 14th, 21st and 30th radiotherapy sessions. Oxidative stress and inflammatory cytokine levels will be measured in the saliva samples of all participants. The costs are identified, measured and evaluated considering the radiotherapy time interval. The incremental cost-effectiveness ratio will be estimated. The study will be conducted according to the Brazilian public health system perspective. Discussion Photobiomodulation is an effective therapy that reduces the cost associated with OM treatment. However, little is known about its cost-effectiveness, mainly when quality of life is the effectiveness measure. Additionally, this therapy is not supported by the Brazilian public health system. Therefore, this study widens the knowledge about the safety of and strengthens evidence for the use of photobiomodulation therapy, providing information for public policy-makers and also for dental care professionals. This study is strongly encouraged due to its clinical relevance and the possibility of incorporating new technology into public health systems. Trial registration Brazilian Registry of Clinical Trials—ReBEC, RBR-5h4y4n. Registered on 13 June 2017. Electronic supplementary material The online version of this article (10.1186/s13063-019-3196-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Allisson Filipe Lopes Martins
- Department of Oral Pathology, Dentistry Faculty, Federal University of Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Túlio Eduardo Nogueira
- Department of Prevention and Oral Rehabilitation, Dentistry Faculty, Federal University of Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Marília Oliveira Morais
- Department of Stomatology, Araujo Jorge Cancer Hospital , R. 239, 206-Setor Universitário, Goiânia, Goiás, CEP 74175-120, Brazil
| | - Angélica Ferreira Oton-Leite
- Department of Stomatology, Araujo Jorge Cancer Hospital , R. 239, 206-Setor Universitário, Goiânia, Goiás, CEP 74175-120, Brazil
| | - Marize Campos Valadares
- Department of Pharmacology and Cellular Toxicology, Pharmacy Faculty, Federal University of Goiás, 5ª Avenida Esquina com Rua 240, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-170, Brazil
| | - Aline Carvalho Batista
- Department of Oral Pathology, Dentistry Faculty, Federal University of Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Nilceana Maya Aires Freitas
- Department of Radiotherapy, Araujo Jorge Cancer Hospital, R. 239, 206-Setor Universitário, Goiânia, Goiás, CEP 74175-120, Brazil
| | - Cláudio Rodrigues Leles
- Department of Prevention and Oral Rehabilitation, Dentistry Faculty, Federal University of Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Elismauro Francisco Mendonça
- Department of Oral Pathology, Dentistry Faculty, Federal University of Goiás, Avenida Universitária Esquina com 1ª Avenida, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil.
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19
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Schmidt TR, Curra M, Wagner VP, Martins MAT, Oliveira AC, Batista AC, Valadares MC, Marreto RN, Martins MD. Mucoadhesive formulation containing
Curcuma longa
L. reduces oral mucositis induced by 5‐fluorouracil in hamsters. Phytother Res 2019; 33:881-890. [DOI: 10.1002/ptr.6279] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/05/2018] [Accepted: 12/13/2018] [Indexed: 12/17/2022]
Affiliation(s)
- Tuany Rafaeli Schmidt
- Department of Oral Pathology, School of DentistryFederal University of Rio Grande do Sul Porto Alegre Brazil
| | - Marina Curra
- Department of Oral Pathology, School of DentistryFederal University of Rio Grande do Sul Porto Alegre Brazil
| | - Vivian Petersen Wagner
- Department of Oral Pathology, School of DentistryFederal University of Rio Grande do Sul Porto Alegre Brazil
| | - Marco Antonio Trevizani Martins
- Department of Oral Pathology, School of DentistryFederal University of Rio Grande do Sul Porto Alegre Brazil
- Department of Oral Medicine, Porto Alegre Clinics Hospital (HCPA/UFRGS)Federal University of Rio Grande do Sul Porto Alegre Brazil
| | - Aline Carlos Oliveira
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of PharmacyFederal University of Goiás Goiânia Brazil
| | - Aline Carvalho Batista
- Laboratory of Oral Pathology, School of DentistryFederal University of Goiás Goiânia Brazil
| | - Marize Campos Valadares
- Laboratory of Pharmacology and Cellular Toxicology, Pharmacy FacultyFederal University of Goiás Goiânia Brazil
| | - Ricardo Neves Marreto
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of PharmacyFederal University of Goiás Goiânia Brazil
| | - Manoela Domingues Martins
- Department of Oral Pathology, School of DentistryFederal University of Rio Grande do Sul Porto Alegre Brazil
- Department of Oral Medicine, Porto Alegre Clinics Hospital (HCPA/UFRGS)Federal University of Rio Grande do Sul Porto Alegre Brazil
- Experimental Pathology Unit, Clinics Hospital of Porto AlegreFederal University of Rio Grande do Sul Porto Alegre Brazil
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Ávila RID, Ferreira CC, Alvarenga CBM, Vieira MDS, Cortez AP, Batista AC, Costa EA, Valadares MC. Toxicological evaluation of Lafoensia pacari A. St.-Hil. (Lythraceae) stem bark extract: Acute and subchronic studies in mice. BRAZ J PHARM SCI 2019. [DOI: 10.1590/s2175-97902019000217289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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Mosconi C, de Arruda JAA, de Farias ACR, Oliveira GAQ, de Paula HM, Fonseca FP, Mesquita RA, Silva TA, Mendonça EF, Batista AC. Immune microenvironment and evasion mechanisms in adenoid cystic carcinomas of salivary glands. Oral Oncol 2019; 88:95-101. [DOI: 10.1016/j.oraloncology.2018.11.028] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 11/07/2018] [Accepted: 11/19/2018] [Indexed: 01/22/2023]
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Lopes MLDDS, Gonzaga AKG, Mosconi C, Palomino GM, Mendonça EF, Batista AC, Silveira ÉJDD. Immune response and evasion mechanisms in lip carcinogenesis: An immunohistochemical study. Arch Oral Biol 2018; 98:99-107. [PMID: 30468994 DOI: 10.1016/j.archoralbio.2018.09.017] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 09/27/2018] [Accepted: 09/28/2018] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Programmed death ligand-1 (PD-L1) and human leukocyte antigen-G (HLA-G) are considered immune checkpoint molecules that inhibit T-cell effectiveness, contributing to tumor immune escape. This study investigated PD-L1, HLA-G, CD8, and granzyme B (GrB) expression at different stages of lip carcinogenesis. DESIGN AND RESULTS Forty cases of lip squamous cell carcinoma (LSCC), 55 actinic cheilitis (AC), and 10 healthy lip mucosa (HLM) were submitted to immunohistochemistry. Semiquantitative (PD-L1, HLA-G), and quantitative (CD8, GrB) analysis were performed. PD-L1 and HLA-G expression in neoplastic cells/keratinocytes and stroma/connective tissue was significantly higher in LSCC and AC, compared to HLM (p<0.05). PD-L1 was not associated with clinicopathological features of the lesions. HLA-G expression by malignant cells was significantly higher in LSCCs with distant metastasis (p = 0.041).CD8+ and GrB+ cell numbers progressively increased from HLMs to LSCC, with AC exhibiting intermediate numbers (p<0.01). Most LSCCs showed coexistence of PD-L1+ and CD8+ cells (72.5%). PD-L1 was directly correlated to CD8+ and GrB+ lymphocytic infiltration in LSCCs (p<0.05). Low cytotoxic immune response was associated with lymph node metastasis in LSCC (p<0.05). CONCLUSIONS PD-L1 and HLA-G-mediated immune evasion mechanisms are likely to occur from early pre-malignant to advanced malignant stages of lip carcinogenesis, which might provide a rationale for therapeutic blockade of these pathways. PD-L1 expression in LSCCs was correlated with the cytotoxic markers, suggesting that PD-L1 may appear as an escape mechanism in response to an active antitumor response.
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Affiliation(s)
| | - Amanda Katarinny Goes Gonzaga
- Post-Graduate Program in Oral Pathology, Department of Dentistry, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Carla Mosconi
- Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil
| | - Gustavo Martelli Palomino
- Division of Rheumatology, Faculty de Medicine, University of São Paulo (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Elismauro Francisco Mendonça
- Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil; Araújo Jorge Hospital, Association of Cancer Combat of Goiás, Division of Head and Neck and Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil
| | - Aline Carvalho Batista
- Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil
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Milani V, De Siqueira NRP, Costa Arantes DA, Tino MT, De Paula HM, Batista AC, Ribeiro-Rotta RF. Intraoral Plasmablastic Lymphoma in HIV Patient: A Case Report. Oral Surg Oral Med Oral Pathol Oral Radiol 2018. [DOI: 10.1016/j.oooo.2018.02.468] [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: 11/28/2022]
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Mosconi C, Costa Arantes DA, Gonçalves AS, De Cássia Gonçalves Alencar R, Da Silva TA, Mendonça EF, Batista AC. Evaluation of Programmed Cell Death Ligand-1 in Intraoral Mucoepidermoid Carcinoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2018. [DOI: 10.1016/j.oooo.2018.02.620] [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: 11/30/2022]
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Costa Arantes DA, De Mendonça EF, Aires Freitas NM, Valadares MC, Marreto RN, Arruda BS, Batista AC. Assessment of Phytomedication with Prophylactic and Curative Effects for Oral Mucositis: a Pilot Study. Oral Surg Oral Med Oral Pathol Oral Radiol 2018. [DOI: 10.1016/j.oooo.2018.02.644] [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: 10/28/2022]
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Fonseca Silva RN, Tino MT, Costa NL, Batista AC, Mendonça EF, Ribeiro-Rotta RF. Central Giant Cell Lesion Mimicking Osteosarcoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2018. [DOI: 10.1016/j.oooo.2018.02.334] [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: 10/28/2022]
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Costa Arantes DA, Guimarães JM, Batista AC. Therapeutic Success of Vitamin D Replacement in Oral Pemphigus Vulgaris: a Case Report. Oral Surg Oral Med Oral Pathol Oral Radiol 2018. [DOI: 10.1016/j.oooo.2018.02.085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lopes Barbosa FT, Lopes AF, Do Lago Costa N, Batista AC, Ribeiro-Rotta RF. Actinic Prurigo of the Lower Lip: Report of an Atypical Case. Oral Surg Oral Med Oral Pathol Oral Radiol 2018. [DOI: 10.1016/j.oooo.2018.02.480] [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: 11/25/2022]
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de Arruda JAA, Schuch LF, Abreu LG, Silva LVDO, Mosconi C, Monteiro JLGC, Batista AC, Hildebrand LDC, Martins MD, Sobral APV, Rivero ERC, Gomes APN, Silva TA, Vasconcelos ACU, Mesquita RA. A multicentre study of oral paracoccidioidomycosis: Analysis of 320 cases and literature review. Oral Dis 2018; 24:1492-1502. [DOI: 10.1111/odi.12925] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 05/29/2018] [Accepted: 06/20/2018] [Indexed: 12/18/2022]
Affiliation(s)
- José Alcides Almeida de Arruda
- Department of Oral Surgery and Pathology, School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
| | - Lauren Frenzel Schuch
- Diagnostic Centre for Oral Diseases, School of Dentistry; Universidade Federal de Pelotas; Pelotas Brazil
| | - Lucas Guimarães Abreu
- Department of Paediatric Dentistry and Orthodontics, School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
| | | | - Carla Mosconi
- Department of Stomathology (Oral Pathology), School of Dentistry; Universidade Federal de Goiás; Goiânia Brazil
| | | | - Aline Carvalho Batista
- Department of Stomathology (Oral Pathology), School of Dentistry; Universidade Federal de Goiás; Goiânia Brazil
| | - Laura de Campos Hildebrand
- Department of Oral Pathology, School of Dentistry; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Manoela Domingues Martins
- Department of Oral Pathology, School of Dentistry; Universidade Federal do Rio Grande do Sul; Porto Alegre Brazil
| | - Ana Paula Veras Sobral
- Department of Oral and Maxillofacial Pathology and Surgery, School of Dentistry; Universidade de Pernambuco; Camaragibe Brazil
| | - Elena Riet Correa Rivero
- Department of Pathology, Health Sciences Centre; Universidade Federal de Santa Catarina; Florianópolis Brazil
| | - Ana Paula Neutzling Gomes
- Diagnostic Centre for Oral Diseases, School of Dentistry; Universidade Federal de Pelotas; Pelotas Brazil
| | - Tarcília Aparecida Silva
- Department of Oral Surgery and Pathology, School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
| | | | - Ricardo Alves Mesquita
- Department of Oral Surgery and Pathology, School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
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Santos Filho EXD, Arantes DAC, Oton Leite AF, Batista AC, Mendonça EFD, Marreto RN, Naves LN, Lima EM, Valadares MC. Randomized clinical trial of a mucoadhesive formulation containing curcuminoids (Zingiberaceae) and Bidens pilosa Linn (Asteraceae) extract (FITOPROT) for prevention and treatment of oral mucositis - phase I study. Chem Biol Interact 2018; 291:228-236. [DOI: 10.1016/j.cbi.2018.06.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 06/05/2018] [Accepted: 06/12/2018] [Indexed: 02/08/2023]
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Silva RNF, Dallarmi LB, Araujo AKC, Alencar RCG, Mendonça EF, Silva TA, Batista AC, Costa NL. Immunohistochemical analysis of neutrophils, interleukin-17, matrix metalloproteinase-9, and neoformed vessels in oral squamous cell carcinoma. J Oral Pathol Med 2018; 47:856-863. [PMID: 29964301 DOI: 10.1111/jop.12762] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 04/09/2018] [Accepted: 06/23/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND Tumor-associated neutrophils (TAN), matrix metalloproteinase-9 (MMP-9), interleukin-17 (IL-17), and angiogenesis have been proposed as prognostic biomarkers of malignant tumors. The purpose of this study was to investigate these inflammatory markers as prognostic factors for oral squamous cell carcinoma (OSCC). METHODS Specimens of OSCC (n = 30), healthy oral mucosa (negative control, n = 10), oral leukoplakia (n = 10), and apical granuloma with abscess (positive inflammatory controls, n = 10) were immunostained for CD66b (neutrophils), MMP-9, IL-17, and CD105 (neoformed microvessels). Semiquantitative (IL-17) and quantitative (CD66b, IL-17, MMP-9, and CD105) analyses were performed. Clinical information (TNM stage, metastasis, recurrence, and survival) and tumor histological grade were also obtained. RESULTS Positivity for TAN, MMP-9, IL-17, and CD105 was higher in OSCC than in the negative control (P < 0.05) and oral leukoplakia, but similar to the positive inflammatory control. Coincident high counts of inflammatory markers (CD66b, MMP-9, IL-17, and CD105) were associated with lymph node metastasis of OSCC. Associations between high numbers of neoformed microvessels and advanced clinical stage and a higher degree of malignancy were also demonstrated. CONCLUSIONS Combined positivity for TAN, MMP-9, IL-17, and CD105 appears to be associated with the metastasis-prone phenotype of OSCC.
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Affiliation(s)
- Ricardo Natã Fonseca Silva
- Department of Stomathology (Oral Pathology), School of Dentistry, Federal University of Goiás, Goiânia, Brazil
| | - Laís Bueno Dallarmi
- Department of Stomathology (Oral Pathology), School of Dentistry, Federal University of Goiás, Goiânia, Brazil
| | | | | | - Elismauro Francisco Mendonça
- Department of Stomathology (Oral Pathology), School of Dentistry, Federal University of Goiás, Goiânia, Brazil.,Division of Head and Neck, Araújo Jorge Hospital, Association of Cancer Combat of Goiás, Goiânia, Brazil
| | - Tarcília Aparecida Silva
- Department of Oral Surgery and Pathology, Dental School, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Aline Carvalho Batista
- Department of Stomathology (Oral Pathology), School of Dentistry, Federal University of Goiás, Goiânia, Brazil
| | - Nadia Lago Costa
- Department of Stomathology (Oral Pathology), School of Dentistry, Federal University of Goiás, Goiânia, Brazil
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Silva RNF, Mendonça EF, Batista AC, Alencar RDCG, Mesquita RA, Costa NL. T-Cell/Histiocyte-Rich Large B-Cell Lymphoma: Report of the First Case in the Mandible. Head Neck Pathol 2018; 13:711-717. [PMID: 30019325 PMCID: PMC6854205 DOI: 10.1007/s12105-018-0948-9] [Citation(s) in RCA: 3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 07/12/2018] [Indexed: 12/29/2022]
Abstract
T-cell/histiocyte-rich large B-cell lymphoma (THRBCL) is an uncommon subtype of non-Hodgkin's lymphoma. It is a predominant nodal neoplasm; however, extranodal sites, such as the spleen, liver and bone marrow, can be involved at diagnosis. However, only one case of primary THRLBCL in the jaws have been reported. We herein describe a 29-year-old female patient who presented with a swelling of the right mandible that had grown rapidly over the previous 2 months. Periapical and panoramic radiographs showed a multilocular osteolytic lesion located in the mandibular periapical region of the canine and premolar teeth and molar region. Preoperative examination and incisional biopsy were performed. Immunohistochemistry was applied to confirm the diagnosis of THRBCL in the jaw. The treatment consisted of CHOP therapy and radiotherapy. After complete tumor remission following initial treatment, additional sites of the disease appeared in the lung, abdomen and long bones. The patient died within 2 months. THRLBCL is an uncommon and aggressive malignant neoplasm that can involve the jaws, mimicking a periapical disease.
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Affiliation(s)
- Ricardo Natã Fonseca Silva
- Department of Stomathology (Oral Pathology), School of Dentistry, Federal University of Goias, Goiânia, GO Brazil
| | - Elismauro Francisco Mendonça
- Department of Stomathology (Oral Pathology), School of Dentistry, Federal University of Goias, Goiânia, GO Brazil ,Division of Head and Neck, Araújo Jorge Hospital, Association of Cancer Combat of Goiás, Goiânia, Brazil
| | - Aline Carvalho Batista
- Department of Stomathology (Oral Pathology), School of Dentistry, Federal University of Goias, Goiânia, GO Brazil
| | | | - Ricardo Alves Mesquita
- Department of Oral Surgery and Pathology, School of Dentistry, Federal University of Minas Gerais, Belo Horizonte, MG Brazil
| | - Nadia Lago Costa
- Department of Stomathology (Oral Pathology), School of Dentistry, Federal University of Goias, Goiânia, GO Brazil
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de Sena LSB, da Silveira ÉJD, Batista AC, Mendonça EF, Alves PM, Nonaka CFW. Immunoexpression of glucocorticoid receptor alpha (GRα) isoform and apoptotic proteins (Bcl-2 and Bax) in actinic cheilitis and lower lip squamous cell carcinoma. J Oral Pathol Med 2018; 47:788-795. [DOI: 10.1111/jop.12757] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/21/2018] [Indexed: 12/31/2022]
Affiliation(s)
| | | | - Aline Carvalho Batista
- Department of Stomatology (Oral Pathology); Dental School; Federal University of Goiás; Goiânia Brazil
| | | | - Pollianna Muniz Alves
- Postgraduate Program in Dentistry; Dental School; State University of Paraíba; Campina Grande PB Brazil
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Gomes HS, Viana KA, Batista AC, Costa LR, Hosey MT, Newton T. Cognitive behaviour therapy for anxious paediatric dental patients: a systematic review. Int J Paediatr Dent 2018; 28:422-431. [PMID: 29984460 DOI: 10.1111/ipd.12405] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND There is a paucity of evidence about cognitive behaviour therapy in the management of dentally anxious children. AIM To systematically review evidence of the effectiveness of cognitive behaviour therapy for children with dental anxiety or dental phobia. DESIGN Clinical trial registries, grey literature, and electronic databases, including The Cochrane Library, EMBASE, PubMed, Scopus, Web of Science, LILACS/BBO, and PsycINFO, were searched (April 2018). The reference lists of relevant studies were hand-searched. Randomised controlled trials that evaluated the effects of cognitive behaviour therapy on dental anxiety or on acceptance of dental treatment in dental patients up to 18 years were included. Two trained and calibrated reviewers performed the study selection and risk of bias assessment. The quality of the evidence was evaluated using the Grading of Recommendations Assessment, Development and Evaluation (GRADE). RESULTS Six studies with a total of 269 patients, aged 41 months to 18 years, were included. Cognitive behaviour therapy decreased level of anxiety compared to control groups and improved cooperation/behaviour, although the quality of the evidence was low. CONCLUSIONS Cognitive behaviour therapy produces better anxiety reduction than diverse behavioural management techniques but the evidence was of low quality and further studies in children are needed.
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Affiliation(s)
| | | | - Aline Carvalho Batista
- Departamento de Estomatologia (Patologia Oral), Faculdade de Odontologia, Universidade Federal de Goiás, Goiânia, Brazil
| | - Luciane Rezende Costa
- Departamento de Saúde Oral, Faculdade de Odontologia, Universidade Federal de Goiás, Goiânia, Brazil
| | - Marie Therese Hosey
- Paediatric Dentistry, Division of Population and Patient Health, King's College London Dental institute, London, UK
| | - Tim Newton
- Psychology, Division of Population and Patient Health, King's College London Dental institute, London, UK
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dos Santos Filho EX, da Silva ACG, de Ávila RI, Batista AC, Marreto RN, Lima EM, de Oliveira CMA, Mendonça EF, Valadares MC. Chemopreventive effects of FITOPROT against 5-fluorouracil-induced toxicity in HaCaT cells. Life Sci 2018; 193:300-308. [DOI: 10.1016/j.lfs.2017.09.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/21/2017] [Accepted: 09/25/2017] [Indexed: 12/12/2022]
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Moreira LC, de Ávila RI, Veloso DFMC, Pedrosa TN, Lima ES, do Couto RO, Lima EM, Batista AC, de Paula JR, Valadares MC. In vitro safety and efficacy evaluations of a complex botanical mixture of Eugenia dysenterica DC. (Myrtaceae): Prospects for developing a new dermocosmetic product. Toxicol In Vitro 2017; 45:397-408. [DOI: 10.1016/j.tiv.2017.04.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2016] [Revised: 03/03/2017] [Accepted: 04/03/2017] [Indexed: 12/31/2022]
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Benfica PL, de Ávila RI, Rodrigues BDS, Cortez AP, Batista AC, Gaeti MPN, Lima EM, Rezende KR, Valadares MC. 4-Nerolidylcatechol: apoptosis by mitochondrial mechanisms with reduction in cyclin D1 at G0/G1 stage of the chronic myelogenous K562 cell line. Pharm Biol 2017; 55:1899-1908. [PMID: 28644062 PMCID: PMC6130688 DOI: 10.1080/13880209.2017.1311351] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 11/01/2016] [Accepted: 03/22/2017] [Indexed: 05/07/2023]
Abstract
CONTEXT 4-Nerolidylcatechol (4-NRC) has showed antitumor potential through apoptosis. However, its apoptotic mechanisms are still unclear, especially in leukemic cells. OBJECTIVES To evaluate the cytotoxic potential of 4-NRC and its cell death pathways in p53-null K562 leukemic cells. MATERIALS AND METHODS Cytotoxicity of 4-NRC (4.17-534.5 μM) over 24 h of exposure was evaluated by MTT assay. 4-NRC-induced apoptosis in K562 cells was investigated by phosphatidylserine (PS) externalization, cell cycle, sub-G1, mitochondrial evaluation, cytochrome c, cyclin D1 and intracellular reactive oxygen species (ROS) levels, and caspase activity analysis. RESULTS IC50 values obtained were 11.40, 27.31, 15.93 and 15.70 μM for lymphocytes, K562, HL-60 and Jurkat cells, respectively. In K562 cells, 4-NRC (27 μM) promoted apoptosis as verified by cellular morphological changes, a significant increase in PS externalization and sub-G1 cells. Moreover, it significantly arrested the cells at the G0/G1 phase due to a reduction in cyclin D1 expression. These effects of 4-NRC also significantly promoted a reduction in mitochondrial activity and membrane depolarization, accumulation of cytosolic cytochrome c and ROS overproduction. Additionally, it triggered an increase in caspases -3/7, -8 and -9 activities. When the cells were pretreated with N-acetyl-l-cysteine ROS scavenger, 4-NRC-induced apoptosis was partially blocked, which suggests that it exerts cytotoxicity though not exclusively through ROS-mediated mechanisms. DISCUSSION AND CONCLUSION 4-NRC has antileukemic properties, inducing apoptosis mediated by mitochondrial-dependent mechanisms with cyclin D1 inhibition. Given that emerging treatment concepts include novel combinations of well-known agents, 4-NRC could offer a promising alternative for chemotherapeutic combinations to maximize tumour suppression.
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Affiliation(s)
- Polyana Lopes Benfica
- Laboratório de Farmacologia e Toxicologia Celular-FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Renato Ivan de Ávila
- Laboratório de Farmacologia e Toxicologia Celular-FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Bruna dos Santos Rodrigues
- Laboratório de Farmacologia e Toxicologia Celular-FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Alane Pereira Cortez
- Laboratório de Farmacologia e Toxicologia Celular-FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Aline Carvalho Batista
- Laboratório de Patologia Bucal, Faculdade de Odontologia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | | | - Eliana Martins Lima
- Laboratório de Tecnologia Farmacêutica-FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Kênnia Rocha Rezende
- Laboratório de Biofarmácia e Farmacocinética de Substâncias Bioativas, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Marize Campos Valadares
- Laboratório de Farmacologia e Toxicologia Celular-FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
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Mosconi C, Arantes DAC, Gonçalves AS, Alencar RDCG, Oliveira JC, Silva TA, Mendonça EF, Batista AC. Immunohistochemical investigations on the expression of programmed cell death ligand 1, human leukocyte antigens G and E, and granzyme B in intraoral mucoepidermoid carcinoma. Arch Oral Biol 2017; 83:55-62. [PMID: 28711734 DOI: 10.1016/j.archoralbio.2017.07.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 02/09/2017] [Revised: 07/05/2017] [Accepted: 07/06/2017] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To identify the expression of nonclassical human leukocyte antigen G and E (HLA-G and -E), programmed cell death ligand-1 (PD-L1) and granzyme B (GB) in intraoral mucoepidermoid carcinomas (MECs), and to assess whether such expressions are related to metastasis, survival, staging, tumor grade and number of GB-positive cells. DESIGN For this cross-sectional study, samples of MEC (n=30) were selected and classified as low-grade (LG), intermediate-grade (IG) or high-grade (HG), according to the WHO grading system. HLA-G, -E and PD-L1 were identified by immunohistochemistry and quantified as the proportion of positive neoplastic cells. The density of GB+ cells was also evaluated. The Kruskal-Wallis test was used with a 5% significance level. RESULTS Expressions of HLA-G, -E and PD-L1 were identified in the majority of epidermoid, intermediate and clear cells, but not in the mucous cells of the MECs. The quantitative analysis of the total percentage of positive neoplastic cells showed overexpression of this set of proteins in all MEC samples. The expression of these proteins and histological grading were positively correlated [HLA-G (LG=79% positive cells, IG=96%, HG=99%; p=0.0004), HLA-E (LG=70%, IG=96%, HG=99%; p<0.0001) and PD-L1 (LG=34%, IG=79%, HG=80%; p=0.01)]. No relationship was observed between the immunosuppressive proteins and other clinicopathological parameters. Low GB density was found in all MEC samples. CONCLUSIONS The augmented expression of HLA-G, -E and PD-L1 in the intraoral MEC might suggest a role of these molecules in the scape of neoplastic cells from immunosurveillance.
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Affiliation(s)
- Carla Mosconi
- Federal University of Goiás, Faculty of Dentistry, Department of Stomatology (Oral Pathology), Goiânia, Brazil.
| | - Diego Antônio Costa Arantes
- Federal University of Goiás, Faculty of Dentistry, Department of Stomatology (Oral Pathology), Goiânia, Brazil.
| | - Andréia Souza Gonçalves
- Federal University of Goiás, Faculty of Dentistry, Department of Stomatology (Oral Pathology), Goiânia, Brazil.
| | | | - José Carlos Oliveira
- Araújo Jorge Hospital, Association of Cancer Combat of Goiás, Division of Head and Neck, Goiânia, Brazil.
| | - Tarcília Aparecida Silva
- Federal University of Minas Gerais, Faculty of Dentistry, Department of Oral Surgery and Pathology, Belo Horizonte, Brazil.
| | | | - Aline Carvalho Batista
- Federal University of Goiás, Faculty of Dentistry, Department of Stomatology (Oral Pathology), Goiânia, Brazil.
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Gonçalves AS, Mosconi C, Jaeger F, Wastowski IJ, Aguiar MCF, Silva TA, Ribeiro-Rotta RF, Costa NL, Batista AC. Overexpression of immunomodulatory mediators in oral precancerous lesions. Hum Immunol 2017; 78:752-757. [PMID: 28941745 DOI: 10.1016/j.humimm.2017.09.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [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] [Received: 04/30/2017] [Revised: 09/05/2017] [Accepted: 09/19/2017] [Indexed: 01/11/2023]
Abstract
Human leukocyte antigen (HLA) G and E, programmed cell death 1 ligand 1 (PD-L1), IL-10 and TGF-β are proteins involved in failure of the antitumor immune response. We investigated the expression of these immunomodulatory mediators in oral precancerous lesions (oral leukoplakia-OL; n=80) and whether these molecules were related to the risk of malignant transformation. Samples of normal mucosa (n=20) and oral squamous cells carcinoma (OSCC, n=20) were included as controls. Tissue and saliva samples were analyzed by immunohistochemistry and ELISA respectively. Fifteen OL samples showed severe dysplasia (18.7%) and 40 samples (50%) presented combined high Ki-67/p53. Irrespective of the degree of epithelial dysplasia and the proliferation/apoptosis index of OL, the expression of HLA-G, -E, PD-L1, IL-10, TGF-β2 and -β3 was higher to control (P<0.05) and similar to OSCC (P>0.05). The number of granzyme B+ cells in OL was similar to control (P=0.28) and lower compared to OSCC (P<0.01). Salivary concentrations of sHLA-G, IL-10 and TGF-β did not allow for a distinction between OL and healthy individuals. Overexpression of immunosuppressive mediators in the OL reflects the immune evasion potential of this lesion, which is apparently independent of at cytological and proliferation/apoptosis status.
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Affiliation(s)
- Andréia Souza Gonçalves
- Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil.
| | - Carla Mosconi
- Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil.
| | - Filipe Jaeger
- Department of Oral Surgery and Pathology, Dental School, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| | | | - Maria Cássia Ferreira Aguiar
- Department of Oral Surgery and Pathology, Dental School, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| | - Tarcília Aparecida Silva
- Department of Oral Surgery and Pathology, Dental School, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| | | | - Nádia Lago Costa
- Department of Stomatology (Oral Medicine), Dental School, Federal University of Goiás, Goiânia, Brazil.
| | - Aline Carvalho Batista
- Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil.
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Yamamoto-Silva FP, Silva BSDF, Batista AC, Mendonça EFD, Pinto-Júnior DDS, Estrela C. Chondroblastic osteosarcoma mimicking periapical abscess. J Appl Oral Sci 2017; 25:455-461. [PMID: 28877285 PMCID: PMC5595119 DOI: 10.1590/1678-7757-2016-0424] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 08/11/2016] [Accepted: 11/04/2016] [Indexed: 11/28/2022] Open
Abstract
Lesions of non-endodontic origin may mimic periapical abscess. Osteosarcoma is a rare malignant lesion.
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Affiliation(s)
| | | | - Aline Carvalho Batista
- Universidade Federal de Goiás, Departamento de Ciências Estomatológicas, Goiânia, GO, Brasil
| | | | | | - Carlos Estrela
- Universidade Federal de Goiás, Departamento de Ciências Estomatológicas, Goiânia, GO, Brasil
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de Moura SS, de Ávila RI, Brito LB, de Oliveira R, de Oliveira GAR, Pazini F, Menegatti R, Batista AC, Grisolia CK, Valadares MC. In vitro genotoxicity and in vivo subchronic evaluation of the anti-inflammatory pyrazole compound LQFM021. Chem Biol Interact 2017; 277:185-194. [PMID: 28890382 DOI: 10.1016/j.cbi.2017.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [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: 06/27/2017] [Revised: 08/22/2017] [Accepted: 09/05/2017] [Indexed: 01/05/2023]
Abstract
Scientific evidences have highlighted 5-(1-(3-fluorophenyl)-1H-pyrazol-4-yl)-2H-tetrazole (LQFM021) as a promising anti-inflammatory, analgesic and antinociceptive agent due to its effects on peripheral opioid receptors associated with activation of the nitric oxide/cGMP/KATP pathway. Despite these important pharmacological findings, toxicity data of LQFM021 are scarce. Thus, this study investigated the in vitro genotoxicity of LQFM021 through cytokinesis-block micronucleus assay (OECD Nº 487/2014). Moreover, zebrafish model was used to assess the embryotoxicity potential of LQFM021 using fish embryo toxicity test (OECD Nº 236/2013) with extended exposure to evaluate subchronic larval development. In vivo subchronic toxicity of LQFM021 in rats (OECD Nº 407/2008) was also conducted. This compound at the lower concentrations tested (3.1 and 31 μg/mL) did not promote changes in micronuclei frequency in HepG2 cells. However, in the higher concentrations of LQFM021 (310 and 620 μg/mL) triggered a significant increase of micronucleated HepG2 cells, showing an alert signal of potential genotoxicity. Regarding the oral treatment of rats with LQFM021 (62.5, 125 or 250 mg/kg) for 28 days, the main findings showed that LQFM021 promoted renal and liver changes in a dose-dependent manner, being irreversible damage for kidneys while liver tissue showed a recovery after 14 days post treatment. Regarding embryotoxicity, although the lower concentrations used did not show toxicity, the concentration of LQFM021 (39.8 and 100 mg/L) promoted malformations in zebrafish embryo-larvae stage, in especial cardiac tissue changes. In conclusion, anti-inflammatory compound LQFM021 seems to have some limiting factors as a new therapeutic option to be used orally and in high repeated doses, related to those found in the non-steroidal anti-inflammatory drugs (NSAIDs).
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Affiliation(s)
- Soraia Santana de Moura
- Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Renato Ivan de Ávila
- Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Lara Barroso Brito
- Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Rhaul de Oliveira
- Laboratório de Genética Toxicológica (GeTOX), Instituto de Biologia, Universidade de Brasília, Brasília, Brazil; Laboratório de Ecotoxicologia e Microbiologia Ambiental Prof. Dr. Abílio Lopes (LEAL), Faculdade de Tecnologia, Universidade Estadual de Campinas, Limeira, São Paulo, Brazil
| | | | - Francine Pazini
- Laboratório de Química Farmacêutica Medicinal (LQFM), Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Ricardo Menegatti
- Laboratório de Química Farmacêutica Medicinal (LQFM), Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Aline Carvalho Batista
- Departamento de Estomatologia (Patologia Oral), Faculdade de Odontologia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Cesar Koppe Grisolia
- Laboratório de Genética Toxicológica (GeTOX), Instituto de Biologia, Universidade de Brasília, Brasília, Brazil
| | - Marize Campos Valadares
- Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás, Goiânia, GO, Brazil.
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Gomes RS, Silva MVT, Dos Santos JC, de Lima Silva LL, Batista AC, Machado JR, Teixeira MM, Dorta ML, de Oliveira MAP, Dinarello CA, Joosten LAB, Ribeiro-Dias F. IL-32γ promotes the healing of murine cutaneous lesions caused by Leishmania braziliensis infection in contrast to Leishmania amazonensis. Parasit Vectors 2017; 10:336. [PMID: 28709468 PMCID: PMC5513196 DOI: 10.1186/s13071-017-2268-4] [Citation(s) in RCA: 16] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 07/03/2017] [Indexed: 08/26/2023] Open
Abstract
Background Interleukin 32 (IL-32) is a pro-inflammatory cytokine induced in patients with American tegumentary leishmaniasis (ATL) caused by Leishmania braziliensis. Here, we investigated whether IL-32 is also expressed in patient lesions caused by L. amazonensis. In addition, we evaluated experimental L. amazonensis and L. braziliensis infections in C57BL/6 transgenic mice for human IL-32γ (IL-32γTg) in comparison with wild-type (WT) mice that do not express the IL-32 gene. Results Human cutaneous lesions caused by L. amazonensis express higher levels of IL-32 than healthy control skin. In mice, the presence of IL-32γ promoted the control of cutaneous lesions caused by L. braziliensis, but not lesions caused by L. amazonensis in an ear dermis infection model. In addition, IL-32γTg mice displayed less tissue parasitism and inflammation in IL-32γTg than WT mice during the healing phase of L. braziliensis infection. Production of antigen-specific pro-inflammatory cytokines was higher in IL-32γTg mice than in WT mice during L. braziliensis infection but not during L. amazonensis infection. Conclusions Human cutaneous lesions caused by L. amazonensis express high levels of IL-32. In mice, the presence of IL-32γ contributes to the lesion healing caused by L. braziliensis but not by L. amazonensis. Data suggest that despite the ability for both species to induce IL-32 in humans, the connections between this cytokine and other immune players induced by related species of parasites can lead to distinct outcomes of the murine infections.
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Affiliation(s)
- Rodrigo Saar Gomes
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | | | - Jéssica Cristina Dos Santos
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.,Department of Internal Medicine and Radboud Center of Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Lucas Luiz de Lima Silva
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | | | - Juliana Reis Machado
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Mauro Martins Teixeira
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Miriam Leandro Dorta
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | | | - Charles A Dinarello
- Division of Infectious Diseases, School of Medicine, University of Colorado Denver, Aurora, CO, USA.,Department of Internal Medicine and Radboud Center of Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands
| | - Leo A B Joosten
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil. .,Department of Internal Medicine and Radboud Center of Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, The Netherlands.
| | - Fátima Ribeiro-Dias
- Instituto de Patologia Tropical e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
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Abstract
Background Publication retraction is a mechanism to preserve the scientific literature against publications that contain seriously flawed or erroneous data, redundant publication, plagiarism, unethical research, and other features that compromise the integrity of science. An increase in the occurrence of retractions in recent years has been reported. Nevertheless, there is scarce information on this topic concerning publications in dentistry and related specialties. Thus, this study aimed to investigate retracted papers published in dental journals. Methods Data collection included an exploratory search in PubMed and a specific search in SCImago Journal Rank indexed journals, complemented by the cases reported on the Retraction Watch website and in PubMed. All 167 dental journals included in SCImago were searched for identification of retracted articles up to March 2016. The selected retracted articles and their corresponding retraction notices were recorded and assessed for classification according to the reason for retraction and other additional information. Results Forty of the 167 journals scrutinised at SCImago (23.9%) had at least one retracted article, and four additional journals were identified from the Retraction Watch website. A total of 72 retracted found were retracted for the reasons: redundant publication (20.8%), plagiarism (18.1%), misconduct (13.8%), overlap (13.6%) and honest error (9.7%). Higher number of retractions were reported in those journals with cites/doc <2.0—n = 49 (74.2%). The types of studies were mainly laboratory studies (34.7%), case reports (22.2%) and review articles (13.9%). Conclusions The approach to ethical problems in papers published in dental scientific journals is still incipient; retractions were mostly due to the authors’ malpractice and were more frequently related to journals with less impact. Electronic supplementary material The online version of this article (doi:10.1186/s13104-017-2576-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Túlio Eduardo Nogueira
- School of Dentistry, Federal University of Goias, Avenida Universitária, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Andréia Souza Gonçalves
- School of Dentistry, Federal University of Goias, Avenida Universitária, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Cláudio Rodrigues Leles
- School of Dentistry, Federal University of Goias, Avenida Universitária, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Aline Carvalho Batista
- School of Dentistry, Federal University of Goias, Avenida Universitária, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil
| | - Luciane Rezende Costa
- School of Dentistry, Federal University of Goias, Avenida Universitária, s/n. Setor Universitário, Goiânia, Goiás, CEP 74605-220, Brazil.
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Jordão JBR, Porto HKP, Lopes FM, Batista AC, Rocha ML. Protective Effects of Ellagic Acid on Cardiovascular Injuries Caused by Hypertension in Rats. Planta Med 2017; 83:830-836. [PMID: 28187467 DOI: 10.1055/s-0043-103281] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ellagic acid is described as having antioxidant and antiproliferative properties. Hence, it was hypothesized that ellagic acid could improve cardiovascular damage caused by hypertension. In this work, hypertension was induced in rats with Nω-Nitro-L-arginine methyl ester hydrochloride (60 mg/kg/day in drinking water) for 6 weeks. Ellagic acid was coadministered (10 or 30 mg/kg/day by gavage) between the second and sixth week. Blood pressure was recorded every week by tail-cuff plethysmography. After 6 weeks, the rats were sacrificed, the hearts and kidneys were weighed, and blood was collected. Aortas were isolated and set up to isometric recordings in an organ bath for histological assay and measuring of calcium content. Hypertension (233.6 ± 9.5 mmHg) was reduced (p < 0.01) by treatment with ellagic acid 10 or 30 mg/kg. The blood levels of nitrate/nitrite were reduced in hypertensive rats and the ellagic acid restored these levels. While the vascular relaxations to acetylcholine and sodium nitoprusside and the contraction to phenylephrine were impaired in the hypertensive group, they were improved after ellagic acid treatment. The alkaline phosphatase activity was increased by hypertension and returned to control levels after ellagic acid treatment. In the aorta, the administration of ellagic acid resulted in less aortic wall thickening and less calcification. In conclusion, ellagic acid attenuates hypertension, possibly improving nitric oxide bioavailability. The vascular response to acetylcholine, sodium nitroprusside, and phenylephrine was impaired by hypertension and improved after treatment with ellagic acid. Moreover, plasmatic alkaline phosphatase activity, calcium content, and hypertrophy in vascular tissues during hypertension were attenuated by treatment with ellagic acid.
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Affiliation(s)
- Juliana Bahia Reis Jordão
- Laboratory of Cardiovascular Pharmacology, Faculty of Pharmacy, Federal University of Goias, Goiânia, Brazil
| | - Hellen Karine Paes Porto
- Laboratory of Cardiovascular Pharmacology, Faculty of Pharmacy, Federal University of Goias, Goiânia, Brazil
| | - Flávio Marques Lopes
- Research Laboratory of Education and Pharmaceutical Services, Federal University of Goias, Goiânia, Brazil
| | - Aline Carvalho Batista
- Laboratory of Pathology, Faculty of Dentistry, Federal University of Goias, Goiânia, Brazil
| | - Matheus Lavorenti Rocha
- Laboratory of Cardiovascular Pharmacology, Faculty of Pharmacy, Federal University of Goias, Goiânia, Brazil
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Costa Arantes DA, Gonçalves AS, Jham BC, Duarte ECB, de Paula ÉC, de Paula HM, Mendonça EF, Batista AC. Evaluation of HLA-G, HLA-E, and PD-L1 proteins in oral osteosarcomas. Oral Surg Oral Med Oral Pathol Oral Radiol 2017; 123:e188-e196. [PMID: 28159587 DOI: 10.1016/j.oooo.2016.12.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 06/02/2016] [Revised: 11/26/2016] [Accepted: 12/01/2016] [Indexed: 01/16/2023]
Abstract
OBJECTIVE The aim of this study was to investigate the expression of human leukocyte antigens (HLAs) G and E and programmed death-ligand 1 (PD-L1) in oral osteosarcoma (OO) (n = 13). The relationship between the expression of these molecules and histologic grading and metastasis was also evaluated. STUDY DESIGN HLA-G, HLA-E, and PD-L1 were identified by immunohistochemistry. Samples of normal bone tissue (n = 6) were used as controls. The sections were evaluated using a semiquantitative scoring system with an immunoreactive score, where a score of 0 was considered absent, ≤2 was low, and >2 was high expression. RESULTS We identified high expression of HLA-G, HLA-E, and PD-L1 by malignant osteoblastic cells in 69.2% of OO cases, which was statistically higher than that in controls (P < .05). Overexpression of these proteins was identified in 8 of 11 samples of high-grade and 1 of 2 samples of low-grade OO. Additionally, 66.6% of patients with metastases (n = 4) and 71.4% of patients without metastases (n = 5) had high expression of HLA-G, HLA-E, and PD-L1 in tumor samples (P > .05). CONCLUSION OO had high expression of HLA-G, HLA-E, and PD-L1 irrespective of clinicopathologic parameters, including histologic grading and metastasis.
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Affiliation(s)
| | - Andréia Souza Gonçalves
- Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil
| | - Bruno Correia Jham
- College of Dental Medicine-Illinois, Midwestern University, Downers Grove, IL, USA
| | | | - Élbio Candido de Paula
- Division of Anatomic Pathology, Araújo Jorge Hospital, Association of Cancer Combat of Goiás, Goiânia, Brazil
| | - Henrique Moura de Paula
- Division of Anatomic Pathology, Araújo Jorge Hospital, Association of Cancer Combat of Goiás, Goiânia, Brazil; Department of Pathology and Medicine Laboratory, Medicine School, Federal University of Goiás, Goiânia, Brazil
| | - Elismauro Francisco Mendonça
- Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil; Head and Neck Division, Araújo Jorge Hospital, Association of Cancer Combat of Goiás, Goiânia, Brazil
| | - Aline Carvalho Batista
- Department of Stomatology (Oral Pathology), Dental School, Federal University of Goiás, Goiânia, Brazil.
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Gomes HS, Miranda AR, Viana KA, Batista AC, Costa PS, Daher A, Machado GDCM, Sado-Filho J, Vieira LAC, Corrêa-Faria P, Hosey MT, Costa LR. Intranasal sedation using ketamine and midazolam for pediatric dental treatment (NASO): study protocol for a randomized controlled trial. Trials 2017; 18:172. [PMID: 28399933 PMCID: PMC5387269 DOI: 10.1186/s13063-017-1919-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [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: 10/21/2016] [Accepted: 03/29/2017] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Uncooperative children may need to receive dental treatment under sedation, which is indicated when nonpharmacological behavior guidance is unsuccessful. There are randomized controlled trials (RCTs) comparing different sedative protocols for dental procedures; however, the evidence for superiority of one form over another is weak. The primary aim of this study is to investigate the efficacy of intranasally administered ketamine plus midazolam for the dental treatment of children. METHODS We have designed a three-armed, parallel RCT to assess intranasal sedation using ketamine/midazolam in terms of the following measures: efficacy, safety, and cost-effectiveness. Two- to 6-year-old healthy children, referred for dental treatment in a dental sedation center in Brazil due to uncooperative behavior and requiring restorative dental procedures, will be recruited. Each child will be randomly assigned to one of the three groups: A - Intranasal administration of ketamine (4.0 mg/kg, maximum 100 mg) and midazolam (0.2 mg/kg, maximum 5.0 mg); B - Oral administration of ketamine (4.0 mg/kg, maximum 100 mg) and midazolam (0.5 mg/kg, maximum 20 mg); and C - Oral administration of midazolam (1.0 mg/kg, maximum 20 mg). The primary outcome is the child's behavior assessed through an observational scale using digital videos of the restorative dental treatment under sedation. The secondary outcomes are as follows: acceptance of sedative administration; memory of intraoperative events; the child's stress; adverse events; the child's pain during the procedure; the parent's, dentists', and child's perceptions of sedation; and economic analysis. Measures will be taken at baseline and drug administration and during and after the dental procedure. The necessary sample size was estimated to be 84 children after a blinded interim analysis of the first 30 cases. DISCUSSION This study will provide data that can substantially add to science and pediatric dentistry as it examines the effect of sedative regimes from different perspectives (outcomes). TRIAL REGISTRATION ClinicalTrials.gov, identifier: NCT02447289 . Registered on 11 May 2015, named "Midazolam and Ketamine Effect Administered Through the Nose for Sedation of Children for Dental Treatment (NASO)."
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Affiliation(s)
- Heloisa Sousa Gomes
- Dentistry Graduate Program, Faculdade de Odontologia (FO), Universidade Federal de Goiás (UFG), Goiânia, GO 74605-220 Brazil
| | - Analya Rodrigues Miranda
- Dentistry Graduate Program, Faculdade de Odontologia (FO), Universidade Federal de Goiás (UFG), Goiânia, GO 74605-220 Brazil
| | - Karolline Alves Viana
- Dentistry Graduate Program, Faculdade de Odontologia (FO), Universidade Federal de Goiás (UFG), Goiânia, GO 74605-220 Brazil
| | | | - Paulo Sucasas Costa
- Department of Pediatrics, Faculdade de Medicina (FM), UFG, Goiânia, GO 74605-020 Brazil
| | - Anelise Daher
- Dentistry Graduate Program, Faculdade de Odontologia (FO), Universidade Federal de Goiás (UFG), Goiânia, GO 74605-220 Brazil
| | | | - Joji Sado-Filho
- Health Sciences Graduate Program, FM/UFG, Goiânia, GO 74605-020 Brazil
| | | | - Patrícia Corrêa-Faria
- Dentistry Graduate Program, Faculdade de Odontologia (FO), Universidade Federal de Goiás (UFG), Goiânia, GO 74605-220 Brazil
| | - Marie Therese Hosey
- Pediatric Dentistry, Division of Population and Patient Health, King’s College London Dental Institute, Bessemer Road, London, SE5 9RS UK
| | - Luciane Rezende Costa
- Department of Oral Health, FO/UFG, Goiânia, GO 74605-220 Brazil
- Faculdade de Odontologia, Universidade Federal de Goiás, Primeira Avenida, Setor Universitário, CEP: 74605-220 Goiânia, Goiás Brazil
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da Silva JM, Moreira Dos Santos TP, Sobral LM, Queiroz-Junior CM, Rachid MA, Proudfoot AEI, Garlet GP, Batista AC, Teixeira MM, Leopoldino AM, Russo RC, Silva TA. Relevance of CCL3/CCR5 axis in oral carcinogenesis. Oncotarget 2017; 8:51024-51036. [PMID: 28881626 PMCID: PMC5584227 DOI: 10.18632/oncotarget.16882] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [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: 08/15/2016] [Accepted: 02/20/2017] [Indexed: 01/24/2023] Open
Abstract
The chemokine CCL3 is a chemotactic cytokine crucial for inflammatory cell recruitment in homeostatic and pathological conditions. CCL3 might stimulate cancer progression by promoting leukocyte accumulation, angiogenesis and tumour growth. The expression of CCL3 and its receptors CCR1 and CCR5 was demonstrated in oral squamous cell carcinoma (OSCC), but their role was not defined. Here, the functions of CCL3 were assessed using a model of chemically induced tongue carcinogenesis with 4-nitroquinoline-1-oxide (4NQO). Lineages of OSCC were used to analyse the effects of CCL3 in vitro. The 4NQO-induced lesions exhibited increased expression of CCL3, CCR1 and CCR5. CCL3-/- and CCR5-/- mice presented reduced incidence of tongue tumours compared to wild-type (WT) and CCR1-/- mice. Consistently, attenuated cytomorphological atypia and reduced cell proliferation were observed in lesions of CCL3-/- and CCR5-/- mice. OSCC from CCL3-/- mice exhibited lower infiltration of eosinophils and reduced expression of Egf, Fgf1, Tgf-β1, Vegfa, Vegfb, Itga-4, Vtn, Mmp-1a, Mmp-2 and Mmp-9 than WT mice. In vitro, CCL3 induced invasion and production of CCL5, IL-6, MMP -2, -8, -9. Blockage of CCL3 in vitro using α-CCL3 or Evasin-1 (a CCL3-binding protein) impaired tumour cell invasion. In conclusion, CCL3/CCR5 axis has pro-tumourigenic effects in oral carcinogenesis. The induction of inflammatory and angiogenic pathways and eosinophils recruitment appear to be the underlying mechanism explaining these effects. These data reveal potential protective effects of CCL3 blockade in oral cancer.
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Affiliation(s)
- Janine Mayra da Silva
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.,Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Tálita Pollyanna Moreira Dos Santos
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo, São Paulo, Bauru, Brazil
| | - Lays Martin Sobral
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo, São Paulo, Bauru, Brazil
| | - Celso Martins Queiroz-Junior
- Department of Morphology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Milene Alvarenga Rachid
- Department of General Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Gustavo Pompermaier Garlet
- Department of Biological Sciences, School of Dentistry, Universidade de São Paulo, SE3;o Paulo, Bauru, Brazil
| | - Aline Carvalho Batista
- Department of Stomatology, School of Dentistry, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - Mauro Martins Teixeira
- Laboratory of Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Andréia Machado Leopoldino
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, Universidade de São Paulo, São Paulo, Bauru, Brazil
| | - Remo Castro Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Tarcília Aparecida Silva
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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de Ávila RI, de Sousa Vieira M, Gaeti MPN, Moreira LC, de Brito Rodrigues L, de Oliveira GAR, Batista AC, Vinhal DC, Menegatti R, Valadares MC. Toxicity evaluation of the photoprotective compound LQFM048: Eye irritation, skin toxicity and genotoxic endpoints. Toxicology 2017; 376:83-93. [DOI: 10.1016/j.tox.2016.04.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 04/17/2016] [Accepted: 04/25/2016] [Indexed: 11/27/2022]
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Vaz MM, Lopes LG, Cardoso PC, Souza JBD, Batista AC, Costa NL, Torres ÉM, Estrela C. Inflammatory response of human dental pulp to at-home and in-office tooth bleaching. J Appl Oral Sci 2016; 24:509-517. [PMID: 27812622 PMCID: PMC5083029 DOI: 10.1590/1678-775720160137] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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: 04/18/2016] [Accepted: 07/05/2016] [Indexed: 12/04/2022] Open
Abstract
Tooth bleaching is a technique of choice to obtain a harmonious smile, but bleaching agents may damage the dental pulp.
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Affiliation(s)
- Maysa Magalhães Vaz
- Universidade Federal de Goiás, Faculdade de Odontologia, Goiânia, GO, Brasil
| | | | | | | | | | - Nádia Lago Costa
- Universidade Federal de Goiás, Faculdade de Odontologia, Goiânia, GO, Brasil
| | | | - Carlos Estrela
- Universidade Federal de Goiás, Faculdade de Odontologia, Departamento de Ciências Estomatológicas, Goiânia, GO, Brasil
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Ávila RID, Mattos Alvarenga CB, Ávila PHMD, Moreira RC, Arruda AF, Fernandes TDO, Rodrigues BDS, Andrade WM, Batista AC, Paula JRD, Valadares MC. Eugenia dysenterica DC. (Myrtaceae) exerts chemopreventive effects against hexavalent chromium-induced damage in vitro and in vivo. Pharm Biol 2016; 54:2652-2663. [PMID: 27241623 DOI: 10.1080/13880209.2016.1178306] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Eugenia dysenterica DC. (Myrtaceae) has been widely used in the folk medicine and it presents phytochemicals constituents associated to antioxidant properties. OBJECTIVE The objective of this study was to investigate the protective effects of E. dysenterica leaf hydroalcoholic extract (EDE) in vitro and in vivo using AMJ2-C11 cells and Swiss mice exposed to hexavalent chromium [Cr(VI)], respectively. MATERIALS AND METHODS AMJ2-C11 cells were pretreated with EDE and exposed to Cr(VI) to evaluate cytotoxicity and the pathways involved in the chemopreventive effects of the extract. Mice were daily pretreated with EDE and then exposed to Cr(VI). Survival analysis, histopathological examination and determination of Cr levels in biological tissues were carried out. RESULTS In vitro studies showed that pretreatment of the AMJ2-C11 cells with EDE protected against the cytotoxicity and oxidative stress induced by Cr(VI). Consequently, the pretreatment with EDE reduced reactive oxygen species and apoptosis triggered by Cr(VI), probably by a marked antioxidant and chelating activities demonstrated by EDE. Regarding in vivo studies, pretreatment for 10 days with EDE increased survival of the mice exposed to Cr(VI). In addition, EDE prevented liver and kidney pathological damages, in parallel with reduction in chromium levels found in these organs and plasma. EDE also showed a marked antioxidant potential associated with the presence of polyphenols, especially flavonoids and tannins, as confirmed by HPLC-PDA. CONCLUSION The study showed that EDE protects against Cr(VI)-induced damage in vitro and in vivo supporting further studies for the development of therapeutic products applied to prevent the damage induced by toxic metals, especially Cr(VI).
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Affiliation(s)
- Renato Ivan de Ávila
- a Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - Cátia Belo Mattos Alvarenga
- a Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - Paulo Henrique Marcelino de Ávila
- a Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - Roger Cardoso Moreira
- b Laboratório de Espectroanalítica, Instituto de Química, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - Andréa Fernandes Arruda
- b Laboratório de Espectroanalítica, Instituto de Química, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - Thaís de Oliveira Fernandes
- a Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - Bruna Dos Santos Rodrigues
- a Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - Wanessa Machado Andrade
- a Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - Aline Carvalho Batista
- c Laboratório de Patologia Bucal, Faculdade de Odontologia, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - José Realino de Paula
- d Laboratório de Pesquisa em Produtos Naturais - LPPN, Faculdade de Farmácia, Universidade Federal de Goiás , Goiânia , GO , Brazil
| | - Marize Campos Valadares
- a Laboratório de Farmacologia e Toxicologia Celular - FarmaTec, Faculdade de Farmácia, Universidade Federal de Goiás , Goiânia , GO , Brazil
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