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Bologna-Molina R, Schuch L, Magliocca K, van Heerden W, Robinson L, Bilodeau EA, Hussaini HM, Soluk-Tekkesin M, Adisa AO, Tilakaratne WM, Li J, Gomez RS, Hunter KD. Targeted therapies in ameloblastomas and amelobastic carcinoma-A systematic review. Oral Dis 2024. [PMID: 38693620 DOI: 10.1111/odi.14962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/19/2024] [Accepted: 04/07/2024] [Indexed: 05/03/2024]
Abstract
Targeted therapy has the potential to be used in the neoadjuvant setting for odontogenic tumors, reducing the morbidities associated with major surgery. In this regard, the aim of this study was to summarize the current evidence on the different forms of targeted therapy, effectiveness, and drawbacks of this course of treatment. Four databases were searched electronically without regard to publication date or language. Grey literature searches and manual searches were also undertaken. Publications with sufficient clinical data on targeted therapy for odontogenic tumors were required to meet the criteria for eligibility. The analysis of the data was descriptive. A total of 15 papers comprising 17 cases (15 ameloblastomas and 2 ameloblastic carcinomas) were included. Numerous mutations were found, with BRAF V600E being most common. Dabrafenib was the most utilized drug in targeted therapy. Except for one case, the treatment reduced the size of the lesion (16/17 cases), showing promise. Most of the adverse events recorded were mild, such as skin issues, voice changes, abnormal hair texture, dry eyes, and systemic symptoms (e.g., fatigue, joint pain, and nausea). It is possible to reach the conclusion that targeted therapy for ameloblastoma and ameloblastic carcinoma may be a useful treatment strategy, based on the findings of the included studies.
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Affiliation(s)
- Ronell Bologna-Molina
- Diagnostic in Oral Pathology and Oral Medicine Department, School of Dentistry, Universidad de la Republica (UDELAR), Montevideo, Uruguay
- Members of an International Consortium on Odontogenic Tumours
| | - Lauren Schuch
- Diagnostic in Oral Pathology and Oral Medicine Department, School of Dentistry, Universidad de la Republica (UDELAR), Montevideo, Uruguay
| | - Kelly Magliocca
- Members of an International Consortium on Odontogenic Tumours
- Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, USA
| | - Willie van Heerden
- Members of an International Consortium on Odontogenic Tumours
- Department of Oral and Maxillofacial Pathology, School of Dentistry, University of Pretoria, Pretoria, South Africa
| | - Liam Robinson
- Members of an International Consortium on Odontogenic Tumours
- Department of Oral and Maxillofacial Pathology, School of Dentistry, University of Pretoria, Pretoria, South Africa
| | - Elizabeth Ann Bilodeau
- Members of an International Consortium on Odontogenic Tumours
- Oral and Maxillofacial Pathology, UDHS Oral Pathology Laboratory, University of Pittsburgh School of Dental Medicine, Pittsburgh, Pennsylvania, USA
| | - Haizal Mohd Hussaini
- Members of an International Consortium on Odontogenic Tumours
- School of Dentistry, University of Otago, Dunedin, New Zealand
| | - Merva Soluk-Tekkesin
- Members of an International Consortium on Odontogenic Tumours
- Oral Pathology Department, Faculty of Dentistry, University of Istanbul, Istanbul, Türkiye
| | - Akinyele Olumuyiwa Adisa
- Members of an International Consortium on Odontogenic Tumours
- Department of Oral Pathology, Faculty of Dentistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Wanninayake Mudiyanselage Tilakaratne
- Members of an International Consortium on Odontogenic Tumours
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Jiang Li
- Members of an International Consortium on Odontogenic Tumours
- Department of Oral Pathology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Ricardo Santiago Gomez
- Members of an International Consortium on Odontogenic Tumours
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
- Faculty of Medical Science of Minas Gerais, Belo Horizonte, Brazil
| | - Keith David Hunter
- Members of an International Consortium on Odontogenic Tumours
- Liverpool Head and Neck Centre, Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, UK
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Silveira FM, Schuch LF, Bologna-Molina R. Classificatory updates in verrucous and cuniculatum carcinomas: Insights from the 5 th edition of WHO-IARC head and neck tumor classification. World J Clin Oncol 2024; 15:464-467. [PMID: 38689630 PMCID: PMC11056860 DOI: 10.5306/wjco.v15.i4.464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 02/02/2024] [Accepted: 03/20/2024] [Indexed: 04/22/2024] Open
Abstract
The International Agency for Research on Cancer (IARC) and World Health Organization (WHO) collaboratively produce the 'WHO Blue Books' essential tools standardizing the diagnostic process for human cancers. Regular updates in this classification accommodate emerging molecular discoveries, advances in immunohistochemical techniques, and evolving clinical insights. The 5th edition of the WHO/IARC classification of head and neck tumors refines the 'Oral Cavity and Mobile Tongue' chapter, including sections for non-neoplastic lesions, epithelial tumors, and tumors of uncertain histogenesis. Notably, the epithelial tumors section is rearranged by tumor behavior, starting with benign squamous papillomas and progressing through potentially malignant oral disorders to oral squamous cell carcinoma (OSCC). The section on OSCC reflects recent information on epidemiology, pathogenesis, and histological prognostic factors. Noteworthy is the specific categorization of verrucous carcinoma (VC) and carcinoma cuniculatum (CC), both associated with the oral cavity and distinct in clinical and histologic characteristics. This classification adjustment emphasizes the oral cavity as their predominant site in the head and neck. Designating specific sections for VC and CC aims to provide comprehensive insights into these unique subtypes, elucidating their clinical features, distinct histological characteristics, prevalence, significance, and clinical relevance. By categorizing these subtypes into specific sections, the 5th edition of the WHO classification aims to provide a more nuanced and detailed account, enhancing our understanding of these specific variants within the broader spectrum of head and neck tumors.
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Affiliation(s)
- Felipe Martins Silveira
- Department of Diagnostics in Oral Pathology and Oral Medicine, Faculty of Dentistry, Universidad de la República, Montevideo 1600, Uruguay
| | - Lauren Frenzel Schuch
- Department of Diagnostics in Oral Pathology and Oral Medicine, Faculty of Dentistry, Universidad de la República, Montevideo 1600, Uruguay
| | - Ronell Bologna-Molina
- Department of Diagnostics in Oral Pathology and Oral Medicine, Faculty of Dentistry, Universidad de la República, Montevideo 1600, Uruguay
- Department of Oral Pathology, Universidad Juarez del Estado de Durango, Durango 13400, Mexico
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3
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Silveira FM, Schuch LF, Pereira-Prado V, Sicco E, Almeda-Ojeda O, Molina-Frechero N, Paparella ML, Villarroel-Dorrego M, Hernadez M, Bologna-Molina R. Frequency of BRAF V600E immunoexpression in ameloblastomas: a multi-institutional analysis of 86 cases in Latin America and comprehensive review of the literature. Med Oral Patol Oral Cir Bucal 2024:26493. [PMID: 38615253 DOI: 10.4317/medoral.26493] [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: 12/11/2023] [Accepted: 03/18/2024] [Indexed: 04/15/2024] Open
Abstract
BACKGROUND The initiation of odontogenic tumorigenesis often involves the activation of the MAP-kinase pathway, with a pivotal role played by the BRAF V600E mutation. This study aimed to investigate the frequency of BRAF V600E immunoexpresion in ameloblastomas diagnosed in four Latin American centers and correlate this finding with the histological types and subtypes of the analyzed cases. MATERIAL AND METHODS A total of 86 samples of ameloblastomas were examined for immunohistochemistry using anti-BRAF V600E antibody. The histopathological features of each case were analyzed. RESULTS Positivity for anti-BRAF V600E antibody was detected in 65/86 cases (75.6%). BRAF V600E was positive in 38/56 cases (67.9%) of conventional ameloblastomas and in 27/30 cases (90.0%) of unicystic ameloblastomas. A statistically significant difference in BRAF V600E positivity was observed when comparing unicystic ameloblastomas to conventional ameloblastomas (p=0.03). No statistically significant difference in BRAF V600E positivity was observed when comparing histological variants, both for conventional ameloblastomas and unicystic ameloblastomas. CONCLUSIONS This study highlights a high frequency of BRAF V600E immunoreactivity in ameloblastomas among Latin American cases. The prevalence of the BRAF V600E immunoexpresion may suggest the feasibility of utilizing BRAF-targeted therapy for ameloblastomas with this mutation.
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Affiliation(s)
- F-M Silveira
- Department of Diagnostics in Pathology and Oral Medicine Universidad de la República, Montevideo, 16400, Uruguay
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Santos-Leite ÉG, Sobral L, Gilligan G, Flores-Ramos JL, González-Arriagada WA, Vega CP, Reiván-Ortiz P, González-Galván MD, Delgado-Azañero W, Bologna-Molina R, Villarroel-Dorrego M, Martinez-Pedraza R, Benevenuto de Andrade BA, Martelli-Júnior H. Oral pathology and oral medicine in Latin American countries: current stage. Med Oral Patol Oral Cir Bucal 2024:26500. [PMID: 38615252 DOI: 10.4317/medoral.26500] [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: 12/14/2023] [Accepted: 03/18/2024] [Indexed: 04/15/2024] Open
Abstract
BACKGROUND Oral Pathology (OP) and Oral Medicine (OM) are specialties in dentistry whose main objective is the diagnosis and treatment of oral and maxillofacial diseases, and aspects related to the academic training of professionals and fields of practice are distinct and heterogeneous around the world. This study aimed to evaluate professional training and areas of activity in OP and OM in Latin American countries. MATERIAL AND METHODS A questionnaire was sent to 11 countries, with a professional in each country responsible for answering it. The questionnaire had 21 questions related to the process of professional training, areas of practice, the existence of scientific events in each country, and also collected demographic and population information. RESULTS OP and OM are practiced in all the countries studied, but the specialty is not recognized in all of them. Brazil was the first to recognize both as a specialty. Postgraduate programs designed to train specialists are available in various countries. Two countries offer residency programs, 6 countries provide specialization courses, 6 offer master's programs, and 3 have doctoral programs. Brazil boasts the highest number of undergraduate courses (n=412), while Uruguay has the lowest (n=2). Professional societies representing the specialty exist in ten countries. Brazil has the highest number of OP and OM specialists (n=422 and 1,072), while Paraguay has the smallest number (n=1 and 3). CONCLUSIONS Although both specialties are widely practiced around the globe, professional training, the number of dentists trained and the fields of professional practice are very different between the countries studied.
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Affiliation(s)
- É-G Santos-Leite
- Department of Oral Diagnosis, Piracicaba Dental School University of Campinas, Av. Limeira, 901, Areão Postal code: 13414-903, Piracicaba, SP, Brazil
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Martínez-Ramírez J, Saldivia-Siracusa C, González-Pérez LV, Cuadra Zelaya FJM, Gerber-Mora R, Cabrera OFG, Bologna-Molina R, Gilligan G, Delgado-Azañero W, Rajendra Santosh AB, González-Arriagada WA, Villarroel-Dorrego M, Rojas BV, Gallagher KPD, Tager EMJR, Aranda-Romo S, García-Heredia GL, Garcia EC, Hurtado I, Turcios CA, Espinal LPS, González RAM, Prado Ribeiro AC, Ribeiro-Rotta RF, Kowalski LP, Curado MP, Toporcov TN, Sollecito TP, Carvalho AL, Lopes MA, Warnakulasuriya S, Santos-Silva AR. Barriers to early diagnosis and management of oral cancer in Latin America and the Caribbean. Oral Dis 2024. [PMID: 38380784 DOI: 10.1111/odi.14903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 02/06/2024] [Indexed: 02/22/2024]
Abstract
OBJECTIVE This study aimed to explore perceived barriers to early diagnosis and management of oral cancer, as well as potential pathways for improvement in Latin America and the Caribbean (LAC). METHODS This cross-sectional study used a self-administered online questionnaire created via the Research Electronic Data Capture platform. The survey was distributed to health professionals trained in Oral Medicine, Oral Pathology, Oral and Maxillofacial Surgery, and Dentists with clinical and academic expertise in oral potentially malignant disorder (OPMD) and oral cancer. Data obtained were systematically organized and analyzed descriptively using Microsoft Excel. RESULTS Twenty-three professionals from 21 LAC countries participated. Major barriers included the limited implementation of OPMD and oral cancer control plans (17.4%), low compulsory reporting for OPMD (8.7%) and oral cancer (34.8%), unclear referral pathways for OPMD (34.8%) and oral cancer (43.5%), and a shortage of trained professionals (8.7%). Participants endorsed the utility of online education (100%) and telemedicine (91.3%). CONCLUSION The survey highlights major perceived barriers to early diagnosis and management of OPMD and oral cancer in LAC, as well as potential avenues for improvement.
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Affiliation(s)
- Josefina Martínez-Ramírez
- Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
- Faculty of Dentistry, University of El Salvador, San Salvador, El Salvador
| | | | - Leonor-Victoria González-Pérez
- Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
- Laboratory of Immunodetection and Bioanalysis, Investigation Group POPCAD, Faculty of Dentistry, University of Antioquia, Medellín, Colombia
| | | | - Roberto Gerber-Mora
- Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | | | - Ronell Bologna-Molina
- Research Department, School of Dentistry, Universidad Juárez del Estado de Durango, Durango, Mexico
- Molecular Pathology Area, School of Dentistry, Universidad de la República, Montevideo, Uruguay
| | - Gerardo Gilligan
- Oral Medicine Department, School of Dentistry, Universidad Nacional de Córdoba, Haya de la Torre SN, Córdoba, Argentina
| | - Wilson Delgado-Azañero
- Department of Oral Pathology, Oral Medicine and Oral Surgery, School of Dentistry, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - Arvind Babu Rajendra Santosh
- School of Dentistry, Faculty of Medical Sciences, The University of the West Indies, Kingston, Jamaica
- Department of Oral Medicine, Faculty of Dentistry, Universitas Airlangga, Surabaya, Indonesia
| | - Wilfredo Alejandro González-Arriagada
- Universidad de los Andes, Facultad de Odontología, Santiago, Chile
- Centro de Investigación e Innovación em Biomedicina, Universidad de los Andes, Las Condes, Chile
| | | | - Bernardo Venegas Rojas
- Department of Stomatology, Faculty of Health Sciences, University of Talca, Talca, Chile
| | - Karen Patricia Domínguez Gallagher
- Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
- Oral Pathology, School of Dentistry, National University of Asunción, Asunción, Paraguay
| | - Elena María José Román Tager
- Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
- Pathology Section, Centro Clínico de Cabeza y Cuello/Hospital Herrera Llerandi, Guatemala City, Guatemala
| | - Saray Aranda-Romo
- Diagnostic clinic, Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico
| | | | | | - Ileana Hurtado
- School of Dentistry, University of San Carlos, Guatemala City, Guatemala
| | | | | | | | - Ana Carolina Prado Ribeiro
- Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
- Instituto do Câncer do Estado de São Paulo, Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
- Oral Medicine Service, Sírio Libanês Hospital, São Paulo, Brazil
| | | | - Luiz Paulo Kowalski
- Department of Head and Neck Surgery and Otorhinolaryngology, A.C. Camargo Cancer Center, São Paulo, Brazil
- Head and Neck Surgery Department and LIM 28, University of São Paulo Medical School, São Paulo, Brazil
| | - Maria Paula Curado
- Group of Epidemiology and Statistics on Cancer, A.C. Camargo Cancer Center, São Paulo, Brazil
| | - Tatiana Natasha Toporcov
- Epidemiology Department, Faculdade de Saude Pública da Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Saman Warnakulasuriya
- The WHO Collaborating Centre for Oral Cancer, London, UK
- Faculty of Dentistry, Oral and Craniofacial Sciences, King's College London, London, UK
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Bologna-Molina R, Schuch L, Niklander SE. Comprehensive insights into the understanding of hypoxia in ameloblastoma. Histol Histopathol 2024:18718. [PMID: 38362601 DOI: 10.14670/hh-18-718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
Hypoxia is characterized by a disparity between supply and demand of oxygen. The association between hypoxia and head and neck tumors is a topic of significant interest. Tumors frequently encounter areas with inadequate oxygen supply, resulting in a hypoxic microenvironment. Ameloblastoma is one of the most common benign odontogenic tumors of the maxillofacial region. It is a slow-growing but locally invasive tumor with a high recurrence rate. The literature has demonstrated the correlation between hypoxia and ameloblastoma, revealing a discernible link between the heightened expression of hypoxic markers in low oxygen conditions. This association is intricately tied to the tumoral potential for invasion, progression, and malignant transformation. Hypoxia profoundly influences the molecular and cellular landscape within ameloblastic lesions. The present review sheds light on the mechanisms, implications, and emerging perspectives in understanding this intriguing association to clarify the dynamic relationship between hypoxia and ameloblastoma.
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Affiliation(s)
- Ronell Bologna-Molina
- Diagnostic in Oral Pathology and Oral Medicine Department, Faculty of Dentistry, Universidad de la República, Uruguay.
- Research Department, School of Dentistry, Universidad Juarez del Estado de Durango, Mexico
| | - Lauren Schuch
- Diagnostic in Oral Pathology and Oral Medicine Department, Faculty of Dentistry, Universidad de la República, Uruguay
| | - Sven Eric Niklander
- Unit of Oral Pathology and Oral Medicine, Faculty of Dentistry, Universidad Andres Bello, Viña del Mar, Chile
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7
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Prieto-Correa JR, Bologna-Molina R, González-González R, Molina-Frechero N, Soto-Ávila JJ, Isiordia-Espinoza M, Márquez MC, Verdín SL. DNA oxidative damage in oral cancer: 8-hydroxy-2´-deoxyguanosine immunoexpression assessment. Med Oral Patol Oral Cir Bucal 2023; 28:e530-e538. [PMID: 37471300 PMCID: PMC10635627 DOI: 10.4317/medoral.25924] [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: 01/18/2023] [Accepted: 06/22/2023] [Indexed: 07/22/2023] Open
Abstract
BACKGROUND The development and establishment of oral squamous cell carcinoma are confined to carcinogenesis, which involves oxidative stress via oxygen-free radical production as a hydroxyl radical (HO•), considered the most important cause of oxidative damage to basic biomolecules since it targets DNA strands. 8-Hydroxy-2´-deoxyguanosine (8-OHdG) is considered a free radical with a promutagenic capacity due to its ability to pair with adenosine instead of cytosine during replication. MATERIAL AND METHODS We collected 30 paraffin-embedded tissue samples of OSCC from patients treated between 2013 and 2018. We recorded risk habits, disease stage, disease free survival and death with at least 3 years of follow-up. 8-Hydroxyguanosine was evaluated by immunohistochemistry and subsequently classified as weak-moderate or strong positive expression. Additionally, we noted whether it was expressed in the cytoplasm and/or nucleus. RESULTS Most of the cases expressed 8-OHdG with a strong intensity (80%). All neoplastic cells were preferentially stained in only the cytoplasm (70.0%), but nuclear positivity was found in 30%, independent of the intensity. Based on the location in the cytoplasm and/or nucleus, tumors >4 cm showed a high frequency (95.5%) of 8-OHdG expression in only the cytoplasm, with a significant difference (p value 0.001). Additionally, overall survival was affected when immunoexpression was present in the cytoplasm and nucleus because all deaths were in this group were statistically significant (p value = 0.001). CONCLUSIONS All tumors showed DNA oxidative damage, and 8-OHdG was preferentially expressed in the cytoplasm. This finding was associated with tumor size and, when present in the nucleus, might also be related to death.
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Affiliation(s)
- J-R Prieto-Correa
- Instituto de Investigación en Odontología Centro Universitario de Ciencias de la Salud Universidad de Guadalajara, Sierra Mojada # 950 Colonia Independencia, Guadalajara, Jalisco, C.P. 44340, Mexico
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8
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Gilligan G, Panico R, Lazos J, Morelatto R, Belardinelli P, Criscuolo MI, Bolesina N, Molina Ávila I, Pimentel Solá JM, Rivarola E, Morgante MJ, Ingrassia Tonelli ME, Gimenez J, Doratti P, Werner LC, Prado-Ribeiro AC, Brandão TB, Vechiato-Filho AJ, Cuzzullin MC, Saldivia-Siracusa C, Lopes MA, Agostini M, Romañach MJ, Abrahão AC, Fonsêca TC, Kaminagakura E, Anbinder AL, Santos Alves K, de Almeida Lança ML, Sacsaquispe-Contreras S, Rodriguez Ibazetta K, Gerber-Mora R, Aranda Romo S, Tejeda Nava FJ, Cordero-Torres K, Moreno Silva R, Gonzalez-Arriagada W, Toro R, Silveira FM, Gonzalez N, Vargas PA, Santos-Silva AR, Bologna-Molina R, Villarroel-Dorrego M, Martinez B, Piemonte E. Oral squamous cell carcinomas and oral potentially malignant disorders: A Latin American study. Oral Dis 2023. [PMID: 37877476 DOI: 10.1111/odi.14778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/09/2023] [Accepted: 10/10/2023] [Indexed: 10/26/2023]
Abstract
OBJECTIVE To determine the frequency of oral squamous cell carcinoma (OSCC) associated or not with oral potentially malignant disorders (OPMD), and the epidemiological profile and traditional risk factors in Latin America. METHODS A retrospective observational study was conducted in 17 Latin American centres. There were included cases of OSCC, analysing age, gender, OSCC and their association with previous OPMD. Clinicopathological variables were retrieved. The condition of sequential-OSCC versus OSCC-de novo (OSCC-dn) was analysed concerning the aforementioned variables. Quantitative variables were analysed using Student's t-test, and qualitative variables with chi-square. RESULTS In total, 2705 OSCC were included with a mean age of 62.8 years old. 55.8% were men. 53.75% of the patients were smokers and 38% were common drinkers. The lateral tongue border was the most affected site (24.65%). There were regional variations in OPMD, being leukoplakia the most frequent. Of the overall 2705 OSCC cases, 81.4% corresponded to OSCC-dn, while s-OSCC were 18.6%. Regarding lip vermillion SCC, 35.7% corresponded to de novo lip SCC and 64.3% were associated with previous OPMD. CONCLUSIONS In Latin America, OSCC-dn seems to be more frequent with regional variations of some clinical and histopathological features. Further prospective studies are needed to analyse this phenomenon.
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Affiliation(s)
- Gerardo Gilligan
- Oral Medicine Department "A", Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - René Panico
- Oral Medicine Department "A", Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Jerónimo Lazos
- Oral Medicine Department "A", Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Rosana Morelatto
- Oral Medicine Department "B", Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Paola Belardinelli
- Oral Medicine Department "B", Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Maria Ines Criscuolo
- Oral Medicine Department "B", Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Nicolas Bolesina
- Oral Medicine Department "B", Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | | | | | | | | | | | | | | | | | - Ana Carolina Prado-Ribeiro
- Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), Fundação da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Thais Bianca Brandão
- Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), Fundação da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil
| | - Aljomar Jose Vechiato-Filho
- Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), Fundação da Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Maria Claudia Cuzzullin
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | | | - Marcio Ajudarte Lopes
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Michelle Agostini
- Department of Oral Diagnosis and Pathology, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mario José Romañach
- Department of Oral Diagnosis and Pathology, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Aline Corrêa Abrahão
- Department of Oral Diagnosis and Pathology, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Thamyres Campos Fonsêca
- Department of Oral Diagnosis and Pathology, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Estela Kaminagakura
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, Brazil
| | - Ana Lia Anbinder
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, Brazil
| | - Kamilla Santos Alves
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, Brazil
| | - Maria Leticia de Almeida Lança
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, Brazil
| | | | | | | | - Saray Aranda Romo
- Facultad de Estomatología, Universidad Autónoma de San Luis de Potosí, San Luis Potosi, Mexico
| | | | | | | | | | - Raiza Toro
- Instituto de Investigaciones Odontológicas, Facultad de Odontología, Universidad Central de Venezuela, Caracas, Venezuela
| | - Felipe Martins Silveira
- Oral Medicine and Oral Pathology Diagnosis Department, Facultad de Odontología, Universidad de la República UDELAR, Montevideo, Uruguay
| | - Natalia Gonzalez
- Oral Medicine and Oral Pathology Diagnosis Department, Facultad de Odontología, Universidad de la República UDELAR, Montevideo, Uruguay
| | - Pablo Agustin Vargas
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Alan Roger Santos-Silva
- Oral Diagnosis Department, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Ronell Bologna-Molina
- Oral Medicine and Oral Pathology Diagnosis Department, Facultad de Odontología, Universidad de la República UDELAR, Montevideo, Uruguay
| | - Mariana Villarroel-Dorrego
- Instituto de Investigaciones Odontológicas, Facultad de Odontología, Universidad Central de Venezuela, Caracas, Venezuela
| | - Benjamin Martinez
- Oral Pathology Department, Facultad de Odontología, Universidad Mayor de Chile, Santiago de Chile, Chile
| | - Eduardo Piemonte
- Oral Medicine Department "A", Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
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9
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Hochmann J, Millán M, Hernández P, Lafon-Hughes L, Aiuto ND, Silva A, Llaguno J, Alonso J, Fernández A, Pereira-Prado V, Sotelo-Silveira J, Bologna-Molina R, Arocena M. Contributions of viral oncogenes of HPV-18 and hypoxia to oxidative stress and genetic damage in human keratinocytes. Sci Rep 2023; 13:17734. [PMID: 37853061 PMCID: PMC10584980 DOI: 10.1038/s41598-023-44880-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/12/2023] [Indexed: 10/20/2023] Open
Abstract
Infection with high-risk human papillomaviruses like HPV-16 and HPV-18 is highly associated with the development of cervical and other cancers. Malignant transformation requires viral oncoproteins E5, E6 and E7, which promote cell proliferation and increase DNA damage. Oxidative stress and hypoxia are also key factors in cervical malignant transformation. Increased levels of reactive species of oxygen (ROS) and nitrogen (RNS) are found in the hypoxic tumor microenvironment, promoting genetic instability and invasiveness. In this work, we studied the combined effect of E5, E6 and E7 and hypoxia in increasing oxidative stress and promoting DNA damage and nuclear architecture alterations. HaCaT cells containing HPV-18 viral oncogenes (HaCaT E5/E6/E7-18) showed higher ROS levels in normoxia and higher levels of RNS in hypoxia compared to HaCaT parental cells, as well as higher genetic damage in hypoxia as measured by γH2AX and comet assays. In hypoxia, HaCaT E5/E6/E7-18 increased its nuclear dry mass and both cell types displayed marked heterogeneity in nuclear dry mass distribution and increased nuclear foci. Our results show contributions of both viral oncogenes and hypoxia to oxidative stress, DNA damage and altered nuclear architecture, exemplifying how an altered microenvironment combines with oncogenic transformation to promote tumor progression.
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Affiliation(s)
- Jimena Hochmann
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.
- Departamento de Diagnóstico en Patología y Medicina Bucal, Facultad de Odontología, Universidad de la República, General Las Heras 1925, Montevideo, Uruguay.
| | - Magdalena Millán
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Paola Hernández
- Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Laura Lafon-Hughes
- Departamento de Genética, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
- Grupo de Biofisicoquímica, Departamento de Ciencias Biológicas, Centro Universitario Regional Litoral Norte -Sede Salto, Universidad de la República (CENUR LN, UdelaR), Montevideo, Uruguay
| | - Natali D' Aiuto
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
- Departamento de Biología Odontológica, Facultad de Odontología, Universidad de la República, General Las Heras 1925, Montevideo, Uruguay
| | - Alejandro Silva
- Instituto de Física, Facultad de Ingeniería, Universidad de la República, Montevideo, Uruguay
| | - Juan Llaguno
- Instituto de Física, Facultad de Ingeniería, Universidad de la República, Montevideo, Uruguay
| | - Julia Alonso
- Instituto de Física, Facultad de Ingeniería, Universidad de la República, Montevideo, Uruguay
| | - Ariel Fernández
- Instituto de Física, Facultad de Ingeniería, Universidad de la República, Montevideo, Uruguay
| | - Vanesa Pereira-Prado
- Departamento de Diagnóstico en Patología y Medicina Bucal, Facultad de Odontología, Universidad de la República, General Las Heras 1925, Montevideo, Uruguay
| | - José Sotelo-Silveira
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
- Sección Biología Celular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Ronell Bologna-Molina
- Departamento de Diagnóstico en Patología y Medicina Bucal, Facultad de Odontología, Universidad de la República, General Las Heras 1925, Montevideo, Uruguay
| | - Miguel Arocena
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.
- Departamento de Biología Odontológica, Facultad de Odontología, Universidad de la República, General Las Heras 1925, Montevideo, Uruguay.
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10
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González-González R, Bologna-Molina R, Molina-Frechero N. Editorial: Fluoride exposure, dental fluorosis, and health. Front Oral Health 2023; 4:1256495. [PMID: 37601298 PMCID: PMC10435973 DOI: 10.3389/froh.2023.1256495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 07/27/2023] [Indexed: 08/22/2023] Open
Affiliation(s)
| | - Ronell Bologna-Molina
- Research Department, School of Dentistry, Juarez University of the Durango State, Durango, Mexico
- Molecular Pathology Area, Diagnostics in Pathology and Oral Medicine School of Dentistry, University of the Republic, Montevideo, Uruguay
| | - Nelly Molina-Frechero
- Division of Biological and Health Sciences, Autonomous Metropolitan University Xochimilco, Mexico City, Mexico
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11
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Ramasubramanian S, Pandiar D, Krishnan RP, Ramalingam K, Bologna-Molina R. Correlation of Bony Invasion With Nodal Metastasis, Pattern of Invasion and Survival in Oral Squamous Cell Carcinoma: A Retrospective Analysis of 122 Primary Cases From Oral Cancer Centre of South India. Cureus 2023; 15:e42887. [PMID: 37664294 PMCID: PMC10474610 DOI: 10.7759/cureus.42887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
Background Oral squamous cell carcinoma (OSCC) is considered to be the most common epithelial malignant neoplasm of the oral cavity. Despite advancements in diagnosis and therapeutics the clinical outcome of the disease has not improved much which may be attributed to tumor biology and heterogeneity. Bone invasion by cancer cells is currently staged as a moderately advanced disease. However, many low-grade carcinomas such as verrucous carcinoma and carcinoma cuniculatum show body invasion but less nodal metastases and better overall survival. The present study was orchestrated to analyze if bone invasion in OSCC has any impact on regional nodal metastases and survival. Materials and methods A total of 122 cases of OSCC who underwent excision and neck dissection were retrieved and included. These cases were then divided into two study groups. Group I comprised 56 OSCC cases with bone involvement and 66 cases with no bony involvement. The bone invasion was correlated with nodal metastases, survival and pattern of invasion. Statistical analysis was done using SPSS software (IBM Corp., Armonk, NY, USA). Results There was no statistically significant correlation between bone invasion with either nodal metastases or pattern of invasion, however, the worst pattern of invasion (WPOI)-4,5 showed a statistically higher incidence of nodal involvement in OSCC. No statistical difference was noted in overall survival between the two groups. Conclusion The worst pattern of invasion and not bone involvement, depicts nodal metastases in OSCC and thus, deserves consideration while staging and treatment planning.
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Affiliation(s)
- Swetha Ramasubramanian
- Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Deepak Pandiar
- Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Reshma P Krishnan
- Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Karthikeyan Ramalingam
- Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, IND
| | - Ronell Bologna-Molina
- Diagnostics in Oral Pathology and Oral Medicine, Facultad de Odontología, Universidad de la República, Montevideo, URY
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12
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Pereira-Prado V, Martins-Silveira F, Sicco E, Hochmann J, Isiordia-Espinoza MA, González RG, Pandiar D, Bologna-Molina R. Artificial Intelligence for Image Analysis in Oral Squamous Cell Carcinoma: A Review. Diagnostics (Basel) 2023; 13:2416. [PMID: 37510160 PMCID: PMC10378350 DOI: 10.3390/diagnostics13142416] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/12/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
Head and neck tumor differential diagnosis and prognosis have always been a challenge for oral pathologists due to their similarities and complexity. Artificial intelligence novel applications can function as an auxiliary tool for the objective interpretation of histomorphological digital slides. In this review, we present digital histopathological image analysis applications in oral squamous cell carcinoma. A literature search was performed in PubMed MEDLINE with the following keywords: "artificial intelligence" OR "deep learning" OR "machine learning" AND "oral squamous cell carcinoma". Artificial intelligence has proven to be a helpful tool in histopathological image analysis of tumors and other lesions, even though it is necessary to continue researching in this area, mainly for clinical validation.
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Affiliation(s)
- Vanesa Pereira-Prado
- Molecular Pathology Area, School of Dentistry, Universidad de la República, Montevideo 11400, Uruguay
| | - Felipe Martins-Silveira
- Molecular Pathology Area, School of Dentistry, Universidad de la República, Montevideo 11400, Uruguay
| | - Estafanía Sicco
- Molecular Pathology Area, School of Dentistry, Universidad de la República, Montevideo 11400, Uruguay
| | - Jimena Hochmann
- Molecular Pathology Area, School of Dentistry, Universidad de la República, Montevideo 11400, Uruguay
| | - Mario Alberto Isiordia-Espinoza
- Department of Clinics, Los Altos University Center, Institute of Research in Medical Sciences, University of Guadalajara, Guadalajara 44100, Mexico
| | - Rogelio González González
- Research Department, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico
| | - Deepak Pandiar
- Department of Oral Pathology and Microbiology, Saveetha Dental College and Hospitals, Chennai 600077, India
| | - Ronell Bologna-Molina
- Molecular Pathology Area, School of Dentistry, Universidad de la República, Montevideo 11400, Uruguay
- Research Department, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico
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13
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D'Aiuto N, Hochmann J, Millán M, Di Paolo A, Bologna-Molina R, Sotelo Silveira J, Arocena M. Author Correction: Hypoxia, acidification and oxidative stress in cells cultured at large distances from an oxygen source. Sci Rep 2023; 13:10111. [PMID: 37344490 DOI: 10.1038/s41598-023-36156-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/23/2023] Open
Affiliation(s)
- Natali D'Aiuto
- Cátedra de Bioquímica y Biofísica, Facultad de Odontología, Universidad de la República, Montevideo, Uruguay
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Jimena Hochmann
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.
- Departamento de Fisiología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
| | - Magdalena Millán
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Andrés Di Paolo
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
| | - Ronell Bologna-Molina
- Departamento de Patología Molecular, Facultad de Odontología, Universidad de la República, Montevideo, Uruguay
| | - José Sotelo Silveira
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay
- Sección Biología Celular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Miguel Arocena
- Cátedra de Bioquímica y Biofísica, Facultad de Odontología, Universidad de la República, Montevideo, Uruguay.
- Departamento de Genómica, Instituto de Investigaciones Biológicas Clemente Estable, Montevideo, Uruguay.
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Soares A, Ferreira L, Calderipe C, Bologna-Molina R, Damian M, Martins M, Silveira F, Vasconcelos AC. Stafne's bone defect: a systematic review. Med Oral Patol Oral Cir Bucal 2023; 28:e264-e271. [PMID: 36565221 PMCID: PMC10181032 DOI: 10.4317/medoral.25676] [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: 09/05/2022] [Accepted: 10/10/2022] [Indexed: 05/01/2023] Open
Abstract
BACKGROUND This systematic review integrated the available data published in the literature on Stafne's bone defect (SBD), considering the clinical, imaging and histopathological results. MATERIAL AND METHODS An electronic search was undertaken in six databases. Eligibility criteria were: articles in English, Spanish, and Portuguese describing case reports or case series of SBD, reported up to September/2021. Risk of bias was assessed using the Joanna Briggs Institute tool. RESULTS A total of 98 articles were retrieved, involving 465 individuals with SBD and were included for quantitative analysis. Mean age was 52.78 years (range: 11-89 years), with male predilection (n=374/80.85%). Radiographs were the most frequent imagiological exams (n=298/64.09%), followed by computed tomography (n=98/21.08%). SBD was more prevalent in the posterior mandible (n=361/93.77%) as a hypodense radiolucent lesion (n=250/77.40%). Mean size was 1.58 cm (range: 0.3-.8.0 cm). Two-hundred-and-two lesions (97.37%) were unilocular and 126 (91.97%) were classified as well-defined. Clinical symptoms were reported in 73 cases, while 68 cases (93.15%) were asymptomatic. Only 34 cases (12.32%) were submitted to histopathological examination. Mean follow-up time was 26.42 ±25.39 months. CONCLUSIONS SBD is more frequent in male patients in the fifth and sixth decade of life. Classic SBD is radiographically characterized as a single, unilocular and well-defined lesion in the posterior region of the jaw with a radiolucent/hypodense appearance.
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Affiliation(s)
- A Soares
- Centro de Diagnóstico das Doenças da Boca - CDDB Faculdade de Odontologia, Universidade Federal de Pelotas. CEP: 96015-560. Rua Gonçalves Chaves, 457, sala 607, Pelotas, RS, Brazil
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15
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Millán M, Villarreal L, D'Aiuto N, Bologna-Molina R, Sotelo-Silveira J, Benech JC, Hochmann J, Arocena M. Mechanical profile of human keratinocytes expressing HPV-18 oncogenes. Biochem Biophys Res Commun 2023; 657:86-91. [PMID: 36996545 DOI: 10.1016/j.bbrc.2023.03.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 03/21/2023] [Indexed: 03/30/2023]
Abstract
During tumorigenesis, the mechanical properties of cancer cells change markedly, with decreased stiffness often accompanying a more invasive phenotype. Less is known about the changes in mechanical parameters at intermediate stages in the process of malignant transformation. We have recently developed a pre-tumoral cell model by stably transducing the immortalized but non-tumorigenic human keratinocyte cell line HaCaT with the E5, E6 and E7 oncogenes from HPV-18, one of the leading causes of cervical cancer and other types of cancer worldwide. We have used atomic force microscopy (AFM) to measure cell stiffness and to obtain mechanical maps of parental HaCaT and HaCaT E5/E6/E7-18 cell lines. We observed a significant decrease in Young's modulus in HaCaT E5/E6/E7-18 cells measured by nanoindentation in the central region, as well as decreased cell rigidity in regions of cell-cell contact measured by Peakforce Quantitative Nanomechanical Mapping (PF-QNM). As a morphological correlate, HaCaT E5/E6/E7-18 cells displayed a significantly rounder cell shape than parental HaCaT cells. Our results therefore show that decreased stiffness with concomitant perturbations in cell shape are early mechanical and morphological changes during the process of malignant transformation.
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16
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Lavalle-Carrasco J, Vergara-Onofre M, González-González R, Bologna-Molina R, Isiordia-Espinoza MA, Gaona E, Molina-Frechero N. A Systematic Review and Meta-Analysis of the Relationship Between the Severity of Dental Fluorosis and Fluoride Biomarkers in Endemic Areas. Biol Trace Elem Res 2023; 201:1051-1062. [PMID: 35397104 DOI: 10.1007/s12011-022-03227-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/30/2022] [Indexed: 02/07/2023]
Abstract
The intake of high concentrations of fluoride, mainly through drinking water, diet and fluoridated dentifrices, produces fluorosis, which in its early stages is manifested as dental fluorosis (DF). To recognize exposure to fluoride in endemic areas and to evaluate the risk of developing health impairment, the WHO has established several biomarkers that are used to determine systemic fluorine (F-) exposure. Thus, the aim of this study was to conduct a systematic review and meta-analysis of the relationship between the severity of DF and fluoride biomarkers in endemic areas. The protocol of this study was previously registered as CRD42021244974. A digital search was carried out in PubMed/Medline, SpringerLink, Scopus, Cochrane and Google Scholar by employing the keywords "urine", "nails", "hair", "plasma", "saliva" and "dental fluorosis" for the original studies with content associated with F- for the biomarkers and DF. The mean difference was established as the effect measure for the meta-analysis. Seven studies fulfilled the eligibility criteria, among which five assessed urine and two employed nails as fluoride biomarkers. A positive significant difference was found between the biomarkers and the severity of DF (0.27, p < 0.001) and individually for each biomarker (urine: 0.14, p = 0.001; nails: 0.88, p < 0.05). The F- concentration in urine and nails is correlated with the severity of DF, with the most evident differences between healthy individuals and those with mild severity. Both biomarkers are adequate to assess this relationship in endemic areas of fluoride and DF.
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Affiliation(s)
- Jesús Lavalle-Carrasco
- Dental Sciences, Autonomous Metropolitan University Xochimilco (UAM), 04960, Mexico City, Mexico
| | - Marcela Vergara-Onofre
- Division of Biological and Health Sciences, Autonomous Metropolitan University Xochimilco (UAM), 04960, Mexico City, Mexico
| | - Rogelio González-González
- Department of Research, School of Dentistry, Juarez University of the Durango State (UJED), 34000, Durango, Mexico
| | - Ronell Bologna-Molina
- Department of Research, School of Dentistry, Juarez University of the Durango State (UJED), 34000, Durango, Mexico
- Molecular Pathology Area, School of Dentistry, University of the Republic (UDELAR), 11200, Montevideo, Uruguay
| | - Mario Alberto Isiordia-Espinoza
- Institute of Research in Medical Sciences, Department of Clinics, Los Altos University Center, University of Guadalajara (UdG), 47650, Tepatitlán de Morelos, Jalisco, Mexico
| | - Enrique Gaona
- Division of Biological and Health Sciences, Autonomous Metropolitan University Xochimilco (UAM), 04960, Mexico City, Mexico
| | - Nelly Molina-Frechero
- Division of Biological and Health Sciences, Autonomous Metropolitan University Xochimilco (UAM), 04960, Mexico City, Mexico.
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Silveira FM, Molina-Frechero N, López-Verdín S, Umpiérrez NG, Palacio-Gastellum MG, Almeda-Ojeda O, González-González R, Martins MD, Sicco E, Pereira-Prado V, Bologna-Molina R. Connexin 43 expression in tooth germ and benign odontogenic tumors. Oral Surg Oral Med Oral Pathol Oral Radiol 2023; 135:661-668. [PMID: 36925450 DOI: 10.1016/j.oooo.2023.01.010] [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: 09/14/2022] [Revised: 10/28/2022] [Accepted: 01/25/2023] [Indexed: 02/05/2023]
Abstract
OBJECTIVE The aim of this study was to investigate and compare the immunohistochemical expression of connexin 43 (Cx43) in tooth germs (TGs), ameloblastic fibromas (AFs), ameloblastic fibro-odontomas (AFOs), and conventional ameloblastomas (AMs). STUDY DESIGN Nine TGs, 12 AFs, 12 AFOs, and 27 AMs were evaluated for Cx43 expression by immunohistochemistry. RESULTS Most of the TGs expressed Cx43 in the mesenchyme (77.6%) and in the late stages of odontogenesis. Cx43 was more highly expressed (P < .05) in the mesenchymal layer of all groups than in the epithelial layer except for the AFOs. When comparing the expression of Cx43 in the different layers of the analyzed groups, statistically significant differences were observed between AFO vs AM (*P = .0158) in the epithelial layer and between AF vs AFO (P** = .0046) in the mesenchymal layer. CONCLUSIONS The results obtained in this study showed that Cx43 is a protein with important expression in the mesenchymal layer of the embryonic and odontogenic tissues studied. It could be speculated that Cx43 participates in mineralization events based on the relationship of the expression of this protein between the epithelial and mesenchymal layers of odontogenic tissues.
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Affiliation(s)
- Felipe Martins Silveira
- Stomatological Molecular Pathology Area, School of Dentistry, Universidad de la República, Uruguay
| | | | | | | | | | | | | | - Manoela Domingues Martins
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Brazil
| | - Estefania Sicco
- Stomatological Molecular Pathology Area, School of Dentistry, Universidad de la República, Uruguay
| | - Vanesa Pereira-Prado
- Stomatological Molecular Pathology Area, School of Dentistry, Universidad de la República, Uruguay
| | - Ronell Bologna-Molina
- Stomatological Molecular Pathology Area, School of Dentistry, Universidad de la República, Uruguay; School of Dentistry, Universidad Juárez del Estado de Durango, Mexico.
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18
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González-Casamada C, Nevarez-Rascón M, Nevarez-Rascón A, González-Galván M, Isiordia-Espinoza MA, Bologna-Molina R, Sánchez-Pérez L, Molina-Frechero N. Single Nucleotide Polymorphisms and Dental Fluorosis: A Systematic Review. Dent J (Basel) 2022; 10:211. [PMID: 36354656 PMCID: PMC9689045 DOI: 10.3390/dj10110211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/29/2022] [Accepted: 11/01/2022] [Indexed: 12/01/2023] Open
Abstract
Genetic factors contribute to susceptibility and resistance to fluoride exposure. The aim of this systematic review was to identify alleles/genotypes of single nucleotide polymorphisms (SNPs) associated with dental fluorosis (DF) and to identify them as protective or risk factors. PubMed, ScienceDirect, Cochrane Library, Scopus and Web of Science were searched for articles; the last search was performed in August 2022. Human studies that analyzed the relationship between SNPs and DF published in English were included; systematic reviews and meta-analyses were excluded. Methodological quality was graded using the Joanna Briggs Institute checklist and risk of bias was assessed using the Cochrane Collaboration's tool. Eighteen articles were included, 44% of which showed high methodological quality and data from 5,625 participants aged 6 to 75 years were analyzed. The SNPs COL1A2, ESR2, DLX1, DLX2, AMBN, TUFT1, TFIP11, miRNA17, and SOD2 were considered risk factors, and ESR1, MMP20, and ENAM were considered protective factors. In conclusion, there are alleles and genotypes of different single nucleotide polymorphisms involved in increasing or decreasing the risk of developing dental fluorosis.
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Affiliation(s)
- Carlos González-Casamada
- Health Care Department, Autonomous Metropolitan University Xochimilco, Mexico City 04960, Mexico
| | | | | | | | - Mario Alberto Isiordia-Espinoza
- Institute of Research in Medical Sciences, Department of Clinics, Los Altos University Center, University of Guadalajara, Tepatitlan de Morelos 47650, Jalisco, Mexico
| | - Ronell Bologna-Molina
- Research Department, School of Dentistry, Juarez University of the Durango State, Durango 34000, Mexico
- Molecular Pathology Area, School of Dentistry, University of the Republic, Montevideo 11200, Uruguay
| | - Leonor Sánchez-Pérez
- Division of Biological and Health Sciences, Autonomous Metropolitan University Xochimilco, Mexico City 04960, Mexico
| | - Nelly Molina-Frechero
- Division of Biological and Health Sciences, Autonomous Metropolitan University Xochimilco, Mexico City 04960, Mexico
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19
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Tancredi-Cueto N, Vigil-Bastitta G, Bologna-Molina R, Beovide-Cortegoso V. The value of Phosphohistone H3 as a cell proliferation marker in oral squamous cell carcinoma. A comparative study with Ki-67 and the mitotic activity index. Med Oral Patol Oral Cir Bucal 2022; 27:e444-e451. [PMID: 35975799 PMCID: PMC9445610 DOI: 10.4317/medoral.25420] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 07/04/2022] [Indexed: 06/15/2023] Open
Abstract
BACKGROUND The Phosphohistone H3 (PHH3) antibody is recognized as a biomarker of cell proliferation, specific for cells in mitosis, of prognostic value in different malignant neoplasms, however it has been poorly studied in oral squamous cell carcinoma (OSCC). The main objective of this study was to evaluate the immunoexpression of the PHH3 in the OSCC, through the correlation with the immunoexpression of Ki-67, the mitotic activity index (MAI), histological grading, clinical-morphological parameters and the rate of survival. MATERIAL AND METHODS The study sample consisted of 62 cases of OSCC diagnosed in the Pathological Anatomy Laboratory of the Faculty of Dentistry, University of the Republic (Uruguay). In each of them, an immunohistochemical technique was performed for Ki-67 and PHH3 (serine 10) antibodies. Image J software was used for the MAI and biomarker quantification, defining the percentage of positivity and mitotic figures per 1000 tumor cells. RESULTS a significant association was obtained between the expression of PHH3 (p 0.016) and MAI (p 0.031) with survival time. However, no similar relationship was found with Ki-67 (p 0.295). Although it was confirmed a statistical association between histological grade and Ki-67 immunoexpression (p 0.004), PHH3 did not show a similar relationship (p 0.564). CONCLUSIONS It was confirmed the role of the PHH3 antibody as a biomarker of mitotic figures in OSCC and as a potential marker of cell proliferation. It is noteworthy that this is one of the first works that evaluates a possible relationship between the expression of this antibody and survival in OSCC.
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Affiliation(s)
- N Tancredi-Cueto
- Oral Histopathology Laboratory, Faculty of Dentistry University of the Republic, Uruguay
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20
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de Andrade BAB, de Arruda JAA, Gilligan G, Piemonte E, Panico R, Molina Ávila I, Pimentel Sola JM, Carmona Lorduy MC, Pupo Marrugo S, Sánchez Tatis AS, Werner LC, Abrahão AC, Agostini M, Buoro L, Israel MS, Freire NDA, Lima LA, Abrantes TDC, Cunha JLS, Pérez-de-Oliveira ME, Roza ALOC, Vargas PA, Lopes MA, Santos-Silva AR, de Almeida OP, Pontes FSC, Pontes HAR, Rondanelli BM, Villarroel-Dorrego M, Bologna-Molina R, Derderian N, Sánchez-Romero C, Abreu LG, Fonseca FP, Mesquita RA, Gomez RS, Martínez-Flores R, Delgado-Azañero W, Alves ATNN, Lourenço SDQC, Coimbra C, Polignano GAC, Assunção Júnior JNR, Souto GR, Souza PEA, Horta MCR, González-Arriagada WA, Romañach MJ. Acquired oral syphilis: A multicenter study of 339 patients from South America. Oral Dis 2022; 28:1561-1572. [PMID: 34263964 DOI: 10.1111/odi.13963] [Citation(s) in RCA: 8] [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: 05/02/2021] [Revised: 07/01/2021] [Accepted: 07/11/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To report the clinicopathologic features of acquired oral syphilis cases in South American countries. MATERIALS AND METHODS Clinical data were retrospectively collected from the records of 18 oral diagnostic services in Argentina, Brazil, Chile, Colombia, Venezuela, Uruguay, and Peru. Serologies of nontreponemal and treponemal tests were used for diagnosis. RESULTS The series comprised 339 cases of acquired oral syphilis. Secondary syphilis ranked as the most common stage (86.7%). Lesions were more frequent among males (58.0%) and young adults with a mean age of 33.3 years. Individuals aged 20-29 years were most affected (35.3%). The most commonly involved sites were the tongue (31.6%), lip/labial commissure (25.1%), and hard/soft palate (20.4%). Clinically, acquired oral syphilis usually presented as mucous patches (28.4%), papules (25.7%), and ulcers (18.1%). Skin manifestations occurred in 67.7% of individuals, while lymphadenopathy and fever were observed in 61.3% and 11.6% of all subjects, respectively. Most patients were treated with the benzathine penicillin G antibiotic. CONCLUSION This report validates the spread of acquired oral syphilis infection among young adults in South America. Our directives include accessible diagnostic tools for proper disease screening, surveillance, and counselling of affected individuals, especially in low- and middle-income countries.
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Affiliation(s)
| | - José Alcides Almeida de Arruda
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Gerardo Gilligan
- Department of Oral Medicine, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Eduardo Piemonte
- Department of Oral Medicine, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - René Panico
- Department of Oral Medicine, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | | | | | | | | | | | | | - Aline Corrêa Abrahão
- Department of Oral Diagnosis and Pathology, School of Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Michelle Agostini
- Department of Oral Diagnosis and Pathology, School of Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luisa Buoro
- Department of Oral Diagnosis and Pathology, School of Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mônica Simões Israel
- Department of Diagnosis and Therapeutics, School of Dentistry, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- Postgraduate Program of Oral Medicine, Faculdade São Leopoldo Mandic, Rio de Janeiro, Brazil
| | | | - Lucas Ambrósio Lima
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Thamiris de Castro Abrantes
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - John Lennon Silva Cunha
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, Brazil
| | | | | | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, Brazil
| | - Marcio Ajudarte Lopes
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, Brazil
| | - Alan Roger Santos-Silva
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, Brazil
| | - Oslei Paes de Almeida
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, Brazil
| | | | | | | | | | - Ronell Bologna-Molina
- Molecular Pathology Area, Faculty of Dentistry, Universidad de la República, Montevidéu, Uruguay
| | - Nathalie Derderian
- Molecular Pathology Area, Faculty of Dentistry, Universidad de la República, Montevidéu, Uruguay
| | - Celeste Sánchez-Romero
- Molecular Pathology Area, Faculty of Dentistry, Universidad de la República, Montevidéu, Uruguay
| | - Lucas Guimarães Abreu
- Department of Child's and Adolescent's Oral Health, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Felipe Paiva Fonseca
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Alves Mesquita
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Santiago Gomez
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - René Martínez-Flores
- Department of Oral Medicine and Oral Pathology, School of Dentistry, Universidad Andrés Bello, Viña del Mar, Chile
| | - Wilson Delgado-Azañero
- Department of Oral Pathology, Oral Medicine and Oral Surgery, School of Dentistry, Universidad Peruana Cayetano Heredia, Lima, Peru
| | | | | | | | | | | | - Giovanna Ribeiro Souto
- Graduate Program in Dentistry, School of Dentistry, Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, Brazil
| | - Paulo Eduardo Alencar Souza
- Graduate Program in Dentistry, School of Dentistry, Pontifícia Universidade Católica de Minas Gerais, Belo Horizonte, Brazil
| | | | | | - Mário José Romañach
- Department of Oral Diagnosis and Pathology, School of Dentistry, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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21
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Derderian N, Pereira-Prado V, Hernandez M, Isiordia-Espinoza M, Arocena M, González-González R, Tremillo-Maldonado O, Meleti M, Molina-Frechero N, Bologna-Molina R. Ep-CAM (MOC-31) expression in tooth germ and ameloblastoma. Med Oral Patol Oral Cir Bucal 2022; 27:e403-e409. [PMID: 35975801 PMCID: PMC9445613 DOI: 10.4317/medoral.25145] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 07/16/2022] [Indexed: 11/05/2022]
Abstract
BACKGROUND Ep-CAM, a transmembrane glycoprotein expressed in most epithelium in normal conditions, has diverse roles in these tissues, including in cell adhesion, proliferation, differentiation, cell cycle regulation, migration and intracellular signaling. It is also over-expressed in most malignant neoplasia, participating in the initiation, progression, and metastatic dissemination of the tumor. The expression and roles of this protein in oral neoplasia, particularly in odontogenic tumors, remain unestablished. The objective of this study consisted in analyzing the expression of this protein in ameloblastoma and tooth germ. MATERIAL AND METHODS Ep-CAM (MOC-31) expression was evaluated by immunohistochemistry in tooth germs (TG) (n = 16) ameloblastomas (AM) (n = 60) and 2 ameloblastic carcinomas. Sections were visualized in their totality with an optical microscope, and positivity observed in cell membrane and cytoplasm was graded according to the following semi-quantitative scale: Neg, "essentially unstained", for negative sections or staining <5% of cells; + for staining of 5-50% of cells; ++ for staining >50% of cells. RESULTS Most tooth germs expressed MOC-31 (81.3%), strong staining was observed both in the inner epithelium of the enamel organ and in the adjacent stellate reticulum. 16.7% of the AM cases showed MOC-31 expression, the immunoexpression expression was diffuse at the cytoplasmic and membrane level. The only two cases of ameloblastic carcinoma included were strong positive to MOC-31. No correlation was observed between protein expression and gender, age, clinical variants, or histological subtypes. CONCLUSIONS Overexpression was found in TG and ameloblastic carcinoma compared to AM; further studies with different experimental strategies are suggested to clarify the biological significance of this finding.
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Affiliation(s)
- N Derderian
- Molecular Pathology, School of Dentistry Universidad de la República (UDELAR) Las Heras 1925, Montevideo 14600, Uruguay
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22
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Guardado-Luevanos I, Bologna-Molina R, Zepeda-Nuño JS, Isiordia-Espinoza M, Molina-Frechero N, González-González R, Pérez-Pérez M, López-Verdín S. Self-Reported Periodontal Disease and Its Association with SARS-CoV-2 Infection. Int J Environ Res Public Health 2022; 19:ijerph191610306. [PMID: 36011941 PMCID: PMC9407774 DOI: 10.3390/ijerph191610306] [Citation(s) in RCA: 2] [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] [Received: 07/20/2022] [Revised: 08/11/2022] [Accepted: 08/16/2022] [Indexed: 06/12/2023]
Abstract
Introduction: Knowledge of the oral manifestations associated with SARS-CoV-2 infection, the new coronavirus causing the COVID-19 pandemic, was hindered due to the restrictions issued to avoid proximity between people and to stop the rapid spread of the disease, which ultimately results in a hyperinflammatory cytokine storm that can cause death. Because periodontal disease is one of the most frequent inflammatory diseases of the oral cavity, various theories have emerged postulating periodontal disease as a risk factor for developing severe complications associated with COVID-19. This motivated various studies to integrate questions related to periodontal status. For the present work, we used a previously validated self-report, which is a useful tool for facilitating epidemiological studies of periodontal disease on a large scale. Methodology: A blinded case-control study with participants matched 1:1 by mean age (37.7 years), sex, tobacco habits and diseases was conducted. After the diagnostic samples for SARS-CoV-2 detection were taken in an ad hoc location at Guadalajara University, the subjects were interviewed using structured questionnaires to gather demographic, epidemiological and COVID-19 symptom information. The self-reported periodontal disease (Self-RPD) questionnaire included six questions, and subjects who met the criteria with a score ≥ 2 were considered to have periodontal disease. Results: In total, 369 participants were recruited, with 117 participants included in each group. After indicating the subjects who had self-reported periodontal disease, a statistically significant difference (p value ≤ 0.001) was observed, showing that self-reported periodontal disease (n = 95, 85.1%) was higher in SARS-CoV-2-positive individuals than in controls (n = 66, 56.4%), with an OR of 3.3 (1.8-6.0) for SARS-CoV-2 infection in people with self-reported periodontal disease. Cases reported a statistically higher median of symptoms (median = 7.0, Q1= 5.5, Q3 = 10.0) than controls (p value ≤ 0.01), and cases with positive self-RPD had a significantly (p value ≤ 0.05) higher number of symptoms (median = 8.0, Q1 = 6.0, Q3 = 10.0) in comparison with those who did negative self-RPD (median = 6.0, Q1 = 5.0, Q3 = 8.0). Conclusions: According to this study, self-reported periodontal disease could be considered a risk factor for SARS-CoV-2 infection, and these individuals present more symptoms.
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Affiliation(s)
- Israel Guardado-Luevanos
- Postgraduate in Periodontology and Implant Dentistry, Faculty of Dentistry, Autonomous University of Guadalajara, Guadalajara 44100, Mexico
| | - Ronell Bologna-Molina
- Molecular Pathology Area, Faculty of Dentistry, Montevideo Republic University, Montevideo 11200, Uruguay
- Research Department, School of Dentistry, Juarez University of the State of Durango, Durango 34100, Mexico
| | - José Sergio Zepeda-Nuño
- Microbiology and Pathology Department, Pathology Laboratory, University Center of Health Sciences, University of Guadalajara, Guadalajara 44100, Mexico
| | - Mario Isiordia-Espinoza
- Clinical Department, Biomedical Science Division, Los Altos University Center, University of Guadalajara, Guadalajara 44100, Mexico
| | - Nelly Molina-Frechero
- Health Care Department, Autonomous Metropolitan University, Mexico City 14387, Mexico
| | - Rogelio González-González
- Research Department, School of Dentistry, Juarez University of the State of Durango, Durango 34100, Mexico
| | - Mauricio Pérez-Pérez
- Periodontology Postgraduate, Comprehensive Dental Clinics Department, University Center of Health Sciences, University of Guadalajara, Guadalajara 44100, Mexico
| | - Sandra López-Verdín
- Research Institute of Dentistry, Comprehensive Dental Clinics Department, University Center of Health Sciences, University of Guadalajara, Guadalajara 44100, Mexico
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23
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Segura IG, Secchi DG, Galíndez MF, Carrica A, Bologna-Molina R, Brunotto M, Centeno VA. Connexin 43, Bcl-2, Bax, Ki67, and E-cadherin patterns in oral squamous cell carcinoma and its relationship with GJA1 rs12197797 C/G. Med Oral Patol Oral Cir Bucal 2022; 27:e366-e374. [PMID: 35717615 PMCID: PMC9271350 DOI: 10.4317/medoral.25298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 06/06/2022] [Indexed: 11/23/2022] Open
Abstract
Background To our knowledge, there is no useful and accurate prognostic biomarker or biomarkers for patients with oral squamous cell carcinoma (OSCC), a tumor with uncertain biological behavior, and unpredicTable clinical progress. The purposes of this study were: a) to determine the expresión profile of Connexin 43, Bcl-2, Bax, E-cadherin, and Ki67 in patients with OSCC; b) identify the GJCA1 rs12197797 genotypic composition. Material and Methods A cross-sectional study using genomic DNA and biopsy samples extracted from the oral mucosa with/without OSCC, older than 18 years, both genders, attended at Facultad de Odontología, Universidad Nacional Córdoba. Immunostaining for Cx43, Bcl-2, Bax, E-cadherin, and Ki67 and genotyping GJA1 rs12197797 by RFLP were performed. Odds Ratio (95% CI), Spearman Coefficient were estimated. Mann-Whitney test was applied to analyze immunostaining between controls/cases (p <0.05 was set for statistical significance). Results GG (mutant) was the most frequent genotype in patients with OSCC diagnosis (53.2%) in relation to CC “healthy” genotype (p=0.00487; OR=7.33; CI95% [1.1-54.7]). And, the allele G (mutant) had a presence in 75.5% of OSCC patients. However, no significant association was observed between alleles C/G and diagnosis (p=0.0565). The heterozygous genotype was the most frequent in the patients of both groups Cx43 and E-cadherin markers were lower in OSCCs in relation to controls. Ki67 and Bcl-2 immunolabeling were high on OSCC, and Bax immunomarker was diminished in OSCC. Conclusions We hypothesized that the oral epithelium losses Connexin 43 and E-cadherin in the membrane, which modifies cell differentiation. The Ki67 and Bcl2 overexpression would increase the cell density in the tissue, by promoting proliferation and decreasing apoptosis. And, this study shows evidence that patients who carry on allele G of GJA1rs12197797 could be at risk of developing OSCC. Key words:Cx43, E-cadherin, Ki67, Bax, Bcl-2, immunostaining expression profile, GJA1 rs12197797 genotyping.
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Affiliation(s)
- I-G Segura
- Universidad Nacional de Córdoba, Facultad de Odontología Haya de la Torre S/N, Córdoba, Postal Code: X5000, Argentina
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24
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Silveira FM, Mello ALR, da Silva Fonseca L, Dos Santos Ferreira L, Kirschnick LB, Martins MD, Schuch LF, de Arruda JAA, Soares CD, de Oliveira Sales A, Bologna-Molina R, Santos-Silva AR, Vasconcelos ACU. Morphological and tissue-based molecular characterization of oral lesions in patients with COVID-19: A living systematic review. Arch Oral Biol 2022; 136:105374. [PMID: 35180550 PMCID: PMC8837487 DOI: 10.1016/j.archoralbio.2022.105374] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 02/07/2023]
Abstract
OBJECTIVE This living systematic review aims to integrate the morphological and tissue-based molecular characterization of oral lesions occurring in individuals infected by COVID-19 (OLICs). MATERIALS AND DESIGN This study was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed, Web of Science, Scopus, Ovid, Embase, and LILACS were searched to identify reports on OLICs with morphological and/or tissue-based molecular data. RESULTS Four studies reporting five cases were included. Three patients were male, and the mean age of the individuals was 47.6 years. The most reported anatomical location was the palate (n = 4), whereas ulcers were the most frequent clinical presentation (n = 3). Histopathologically, all cases revealed cell vacuolization and exocytosis in the epithelial layer. In the mesenchymal layer, inflammatory cell infiltrate and thrombi/microvascular thrombosis were observed in three cases. Immunohistochemical reactions were performed in two cases. Both cases were negative for HHV-1, HHV-2, and CMV. One case revealed positivity for SARS-CoV-2 spike protein. No other molecular tests were found for the characterization of OLIC. CONCLUSIONS The pathological characteristics of OLICs are still unspecific. However, with the ongoing COVID-19 pandemic and well-documented new cases, whether OLICs are due to coinfections or has a primary origin can be determined.
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Affiliation(s)
- Felipe Martins Silveira
- Molecular Pathology Department, School of Dentistry, Universidad de la República, Montevideo, Uruguay; Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | - André Luiz Rodrigues Mello
- Diagnostic Center for Oral Diseases, School of Dentistry, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Laura da Silva Fonseca
- Diagnostic Center for Oral Diseases, School of Dentistry, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Luíse Dos Santos Ferreira
- Diagnostic Center for Oral Diseases, School of Dentistry, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil
| | - Laura Borges Kirschnick
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, São Paulo, Brazil
| | - Manoela Domingues Martins
- Department of Oral Pathology, School of Dentistry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, São Paulo, Brazil
| | - Lauren Frenzel Schuch
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, São Paulo, Brazil
| | - José Alcides Almeida de Arruda
- Department of Oral Surgery, Pathology and Clinical Dentistry, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Ciro Dantas Soares
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, São Paulo, Brazil; Division of Anatomic Pathology, Getulio Sales Diagnósticos, Private Pathology Service, Natal, Rio Grande do Norte, Brazil
| | - Alexandre de Oliveira Sales
- Division of Anatomic Pathology, Getulio Sales Diagnósticos, Private Pathology Service, Natal, Rio Grande do Norte, Brazil
| | - Ronell Bologna-Molina
- Molecular Pathology Department, School of Dentistry, Universidad de la República, Montevideo, Uruguay
| | - Alan Roger Santos-Silva
- Department of Oral Diagnosis, Piracicaba Dental School, Universidade Estadual de Campinas, Piracicaba, São Paulo, Brazil
| | - Ana Carolina Uchoa Vasconcelos
- Diagnostic Center for Oral Diseases, School of Dentistry, Universidade Federal de Pelotas, Pelotas, Rio Grande do Sul, Brazil.
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25
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Giovannacci I, Vescovi P, Corcione L, Corradi D, Bologna-Molina R, Meleti M. Mandibular metastasis from carcinoma of the bladder: Report of a case and literature review. J Clin Exp Dent 2022; 14:e376-e379. [PMID: 35419177 PMCID: PMC9000391 DOI: 10.4317/jced.57293] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 02/06/2022] [Indexed: 02/07/2023] Open
Abstract
Metastases represent about 1% of all malignant tumors of the oral region. Only 12 cases of metastases to the jawbones and 3 to the oral soft tissues from a carcinoma of the bladder are reported in the English literature. Here we report a case of an 86 year-old man with a metastasis to the anterior region of the lower jaw from a transitional cell carcinoma of the bladder treated 5 years before, all-together with a literature review. Key words:Bladder, mandibular metastasis, oral metastasis, transitional cell carcinoma.
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Affiliation(s)
- Ilaria Giovannacci
- DDS, Msc. Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Paolo Vescovi
- DDS, Msc, PhD. Centro Universitario di Odontoiatria, Department of Medicine and Surgery, Oral Medicine and Laser Surgery Unit, University of Parma, Parma, Italy
| | - Luigi Corcione
- MD. Department of Medicine and Surgery, Section of Human Pathology and Histopathology, University of Parma, Parma, Italy
| | - Domenico Corradi
- MD. Department of Medicine and Surgery, Section of Human Pathology and Histopathology, University of Parma, Parma, Italy
| | - Ronell Bologna-Molina
- DDS, PhD. Molecular Pathology Area, School of Dentistry, Universidad de la República, Uruguay
| | - Marco Meleti
- DDS, PhD. Centro Universitario di Odontoiatria, Department of Medicine and Surgery, Oral Medicine and Laser Surgery Unit, University of Parma, Parma, Italy
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26
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Mikami T, González-Arriagada WA, Niklander SE, Gomes CC, Gomez RS, Bologna-Molina R. Editorial: Odontogenic Tumors. Front Oral Health 2022; 3:845557. [PMID: 35284906 PMCID: PMC8913484 DOI: 10.3389/froh.2022.845557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 01/18/2022] [Indexed: 02/05/2023] Open
Affiliation(s)
- Toshinari Mikami
- Pax Creation Medical Lab, Morioka, Japan
- Department of Oral Pathology, Oral Lab Central College of Stomatology, China Medical University, Shenyang, China
- *Correspondence: Toshinari Mikami
| | | | - Sven E. Niklander
- Facultad de Odontología, Unidad de Patología y Medicina Oral, Universidad Andrés Bello, Viña del Mar, Chile
| | - Carolina Cavalieri Gomes
- Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ricardo Santiago Gomez
- Faculty of Dentistry, Department of Oral Surgery and Pathology, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Ronell Bologna-Molina
- Facultad de Odontología, Laboratorio de Patología Molecular Estomatológica, Universidad de la República, Montevideo, Uruguay
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27
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Trujillo-González D, Villarroel-Dorrego M, Toro R, Vigil G, Pereira-Prado V, Bologna-Molina R. Decompression induces inflammation but do not modify cell proliferation and apoptosis in odontogenic keratocyst. J Clin Exp Dent 2022; 14:e100-e106. [PMID: 35070131 PMCID: PMC8760963 DOI: 10.4317/jced.59096] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 12/13/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Odontogenic keratocyst (OKC) is a development cyst, of odontogenic origin, that differs from other entities by its infiltrating and aggressive biological behavior. Among conservative treatments for large lesions, surgical decompression stands out, with a variable recurrence rate. Aim: To evaluate the histological effects of decompression treatment on OKC, including cell proliferation and apoptosis of epithelial cyst. MATERIAL AND METHODS 21 OKC cases were included. Samples were taken before and after surgical decompression for histological evaluation and immunohistochemical staining of Ki-67, MCM4/7, Bax and Bcl2. Data were analyzed and compared using Student's t and Wilcoxon tests for related samples, and p values <0,05 were considered statistically significant. RESULTS After decompression treatment an increase in inflammation of the cystic wall (p=0,029), loss of parakeratinization of the epithelium (p=0,007) and absence of palisade cell distribution in the basal layer were observed (p=0,002). There were no statistically significant changes in the expression of Ki-67 (p=0,323), MCM4/7 (p=0,079), Bax (p=0,392) or Bcl-2 when compared before and after decompression. CONCLUSIONS Surgical decompression generates histological structural changes in OKC both in the epithelium and connective wall, however, these findings do not seem to alter induction of the cell cycle or epithelial apoptosis. Key words:Odontogenic keratocyst, MCM, Bax, Bcl2, Ki-67, apoptosis, decompression.
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Affiliation(s)
| | | | - Raiza Toro
- Universidad Central de Venezuela, Caracas, Venezuela
| | - Gabriela Vigil
- Área de Patología Molecular Estomatológica, Facultad de Odontología, UdelaR, Montevideo-Uruguay
| | - Vanesa Pereira-Prado
- Área de Patología Molecular Estomatológica, Facultad de Odontología, UdelaR, Montevideo-Uruguay
| | - Ronell Bologna-Molina
- Área de Patología Molecular Estomatológica, Facultad de Odontología, UdelaR, Montevideo-Uruguay
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Sánchez-Romero C, Paes de Almeida O, Bologna-Molina R. Mixed odontogenic tumors: A review of the clinicopathological and molecular features and changes in the WHO classification. World J Clin Oncol 2021; 12:1227-1243. [PMID: 35070741 PMCID: PMC8716991 DOI: 10.5306/wjco.v12.i12.1227] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/25/2021] [Accepted: 11/25/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Ameloblastic fibromas and ameloblastic fibrosarcomas are rare odontogenic tumors, and controversy exists in the classification of cases presenting hard-tissue production: Ameloblastic fibrodentinoma (AFD) and ameloblastic fibro-odontoma (AFO). These cases are currently considered “developing odontomas” (hamartomatous lesions).
AIM To analyze the clinicopathologic features of these lesions and discuss the changes in the 2017 World Health Organization classification.
METHODS An electronic literature search was performed in the PubMed/MEDLINE database. An electronic search of the English language literature was performed and last updated in September 2020 in the PubMed/MEDLINE database using the following terms: “ameloblastic fibroma”, “ameloblastic fibrodentinoma”, “ameloblastic fibro-odontoma”, “ameloblastic sarcoma”, “ameloblastic fibrosarcoma”, “ameloblastic fibrodentinosarcoma”, “ameloblastic fibroodontosarcoma” and “odontogenic carcinosarcoma”. The inclusion criteria were odontogenic tumor series, case reports and systematic reviews that provided sufficient clinical, radiological and microscopic documentation to confirm the diagnosis.
RESULTS The database search strategy resulted in 947 papers. Articles focusing on other topics, articles that were not in English, duplicate articles, and articles without fulfilling the inclusion criteria were excluded. Finally, 96 publications were included in this review to describe and discuss the main features of the searched entities. Several aspects of AFO and AFD, such as biological behavior, age of occurrence, amount of hard tissue, and potential for malignant transformation into odontogenic sarcomas, support the neoplastic nature in most of the reported cases. Considering the clinical, radiographic, histopathological and molecular characteristics of odontogenic lesions with hard tissue production, we suggest that these types of lesions should continue to be recognized as odontogenic tumors by maintaining the classically used terms.
CONCLUSION This recommendation will be relevant for future clinical, microscopic, and molecular studies to better understand the biology of these interesting odontogenic tumors.
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Affiliation(s)
- Celeste Sánchez-Romero
- Department of Oral Pathology, Faculty of Dentistry, University Juarez of the Durango State, Durango 33106, Mexico
| | - Oslei Paes de Almeida
- Department of Diagnosis, Faculty of Piracicaba, State University of Campinas, São Paulo Brazil, Piracicaba 13414-903, Sao Paulo, Brazil
| | - Ronell Bologna-Molina
- Department of Oral Pathology, Faculty of Dentistry, University Juarez of the Durango State, Durango 33106, Mexico
- Department of Oral and Maxillofacial Pathology, Universidad de la República UDELAR (URUGUAY), Montevideo 16400, Uruguay
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Silveyra E, Bologna-Molina R, Gónzalez-Gónzalez R, Arocena M. The Tissue Architecture of Oral Squamous Cell Carcinoma Visualized by Staining Patterns of Wheat Germ Agglutinin and Structural Proteins Using Confocal Microscopy. Cells 2021; 10:cells10092466. [PMID: 34572115 PMCID: PMC8465371 DOI: 10.3390/cells10092466] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/14/2021] [Accepted: 09/15/2021] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Tissue architecture and cell morphology suffer profound alterations during oral cancer and are important markers for its progression and outcome. For precise visualization of tissue architecture in oral cancer, we used confocal microscopy to examine the staining pattern of wheat germ agglutinin, a lectin that binds membrane glycoproteins, and the staining patterns of structural proteins. MATERIALS AND METHODS Paraffin sections of oral squamous cell carcinoma were stained with fluorescently labeled wheat germ agglutinin and with antibodies against structural proteins, which were revealed by immunohistochemistry with tyramide signal amplification. RESULTS Membrane localization of wheat germ agglutinin was markedly decreased in the basal layers and in regions of tumor invasion, accompanied by cytoplasmic redistribution of E-cadherin, β-actin and syndecan-1. Wheat germ agglutinin staining clearly identified tumor clusters within the surrounding stroma, and tumor cells with elongated morphology. CONCLUSIONS Our results suggest that the wheat germ agglutinin staining pattern is indicative of the degree of cell cohesion in oral squamous cell carcinoma, which decreases in basal layers and invasive tumor clusters with more migratory morphologies. Wheat germ agglutinin staining in combination with confocal microscopy could constitute, therefore, a valuable tool for the study of tissue architecture in oral cancer.
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Affiliation(s)
- Estefania Silveyra
- Molecular Pathology, School of Dentistry Universidad de la República (UDELAR), Las Heras 1925, Montevideo 14600, Uruguay;
| | - Ronell Bologna-Molina
- Molecular Pathology, School of Dentistry Universidad de la República (UDELAR), Las Heras 1925, Montevideo 14600, Uruguay;
- Correspondence: (R.B.-M.); or (M.A.)
| | - Rogelio Gónzalez-Gónzalez
- Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34070, Mexico;
| | - Miguel Arocena
- Biochemistry and Biophysics, School of Dentistry Universidad de la República (UDELAR), Las Heras 1925, Montevideo 14600, Uruguay
- Genomics Department, Instituto de Investigaciones Biológicas Clemente Estable (IIBCE), Montevideo 11600, Uruguay
- Correspondence: (R.B.-M.); or (M.A.)
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Sánchez-Romero C, Carreón-Burciaga R, Gónzalez-Gónzalez R, Villarroel-Dorrego M, Molina-Frechero N, Bologna-Molina R. Perilipin 1 and adipophilin immunoexpression suggests the presence of lipid droplets in tooth germ, ameloblastoma, and ameloblastic carcinoma. J Oral Pathol Med 2021; 50:708-715. [PMID: 33733498 DOI: 10.1111/jop.13175] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/09/2020] [Accepted: 03/09/2021] [Indexed: 02/05/2023]
Abstract
BACKGROUND Increased lipogenesis and lipid droplet accumulation are observed in diverse tumors, and these processes are associated with poor prognosis in several tumors, representing potential therapeutic targets. The presence of lipid droplets in odontogenic tissues and/or tumors is unknown. METHODS Immunohistochemistry for perilipin 1 and adipophilin was performed in 12 human tooth germs (TG), 27 conventional ameloblastoma (AM), and 8 ameloblastic carcinoma (AC) samples. Cytoplasmic staining was analyzed using an immunoreactive score (IRS), and the results were compared for the TG, AM, and AC samples by Kruskal-Wallis test followed by Dunn's post-test and confirmed by Mann-Whitney U test. RESULTS Perilipin 1 was negative in 91.7% of the TG samples, positive in 48.2% of the AM samples, and positive in 87.5% of the AC samples. Adipophilin was positive in 100% of the TG samples, 92.6% of the AM samples, and 100% of the AC samples. The perilipin 1 and adipophilin IRS revealed statistically significant differences between the TG, AM, and AC samples (p = .007 and p = .018, respectively). The perilipin 1 levels among the TG and AC samples were statically significant (**p = .0085), as well as the adipophilin levels when TG and AM samples were compared (**p < .0029). CONCLUSIONS Adipophilin exhibits significant activity in human tooth development. The immunoexpression of perilipin 1 and adipophilin in the AM and AC samples suggests the presence of lipid droplets, providing further evidence of metabolic alterations in these tumors. Additional studies with larger samples and alternative techniques are necessary to confirm these findings.
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Affiliation(s)
- Celeste Sánchez-Romero
- Molecular Pathology Area, Faculty of Dentistry, University of the Republic, Montevideo, Uruguay
- Oral Pathology, School of Dentistry, Universidad Juarez del Estado de Durango, Durango, Mexico
| | - Ramón Carreón-Burciaga
- Oral Pathology, School of Dentistry, Universidad Juarez del Estado de Durango, Durango, Mexico
| | | | | | | | - Ronell Bologna-Molina
- Molecular Pathology Area, Faculty of Dentistry, University of the Republic, Montevideo, Uruguay
- Oral Pathology, School of Dentistry, Universidad Juarez del Estado de Durango, Durango, Mexico
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González-González R, Ortiz-Sarabia G, Molina-Frechero N, Salas-Pacheco JM, Salas-Pacheco SM, Lavalle-Carrasco J, López-Verdín S, Tremillo-Maldonado O, Bologna-Molina R. Epithelial-Mesenchymal Transition Associated with Head and Neck Squamous Cell Carcinomas: A Review. Cancers (Basel) 2021; 13:cancers13123027. [PMID: 34204259 PMCID: PMC8234594 DOI: 10.3390/cancers13123027] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 04/22/2021] [Revised: 06/09/2021] [Accepted: 06/15/2021] [Indexed: 02/07/2023] Open
Abstract
Head and neck squamous cell carcinomas (HNSCCs) are aggressive, recurrent, and metastatic neoplasms with a high occurrence around the world and can lead to death when not treated appropriately. Several molecules and signaling pathways are involved in the malignant conversion process. Epithelial-mesenchymal transition (EMT) has been described in HNSCCs, a major type of aggressive carcinoma. EMT describes the development of epithelial cells into mesenchymal cells, which depends on several molecular interactions and signaling pathways that facilitate mesenchymal conversion. This is related to interactions with the microenvironment of the tumor, hypoxia, growth factors, matrix metalloproteinases, and the presence of viral infections. In this review, we focus on the main molecules related to EMT, their interactions with the tumor microenvironment, plasticity phenomena, epigenetic regulation, hypoxia, inflammation, their relationship with immune cells, and the inhibition of EMT in the context of HNSCCs.
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Affiliation(s)
- Rogelio González-González
- Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico; (R.G.-G.); (G.O.-S.); (O.T.-M.)
| | - Gamaliel Ortiz-Sarabia
- Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico; (R.G.-G.); (G.O.-S.); (O.T.-M.)
| | - Nelly Molina-Frechero
- Xochimilco Unit, Department of Health Care, Universidad Autónoma Metropolitana (UAM) Xochimilco, Mexico City 04960, Mexico; (N.M.-F.); (J.L.-C.)
| | - José Manuel Salas-Pacheco
- Scientific Research Institute, Universidad Juárez del Estado de Durango, Avenida Universidad S/N, Durango 34000, Mexico; (J.M.S.-P.); (S.M.S.-P.)
| | - Sergio Manuel Salas-Pacheco
- Scientific Research Institute, Universidad Juárez del Estado de Durango, Avenida Universidad S/N, Durango 34000, Mexico; (J.M.S.-P.); (S.M.S.-P.)
| | - Jesús Lavalle-Carrasco
- Xochimilco Unit, Department of Health Care, Universidad Autónoma Metropolitana (UAM) Xochimilco, Mexico City 04960, Mexico; (N.M.-F.); (J.L.-C.)
| | - Sandra López-Verdín
- Health Science Center, Dentistry Research Institute, Universidad de Guadalajara, Guadalajara 4430, Mexico;
| | - Omar Tremillo-Maldonado
- Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico; (R.G.-G.); (G.O.-S.); (O.T.-M.)
| | - Ronell Bologna-Molina
- Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico; (R.G.-G.); (G.O.-S.); (O.T.-M.)
- Molecular Pathology Area, School of Dentistry, Universidad de la República, Montevideo 11600, Uruguay
- Correspondence:
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López-Verdín S, Prieto-Correa JR, Molina-Frechero N, Bologna-Molina R. Screening test for COVID-19 in dental practice: Best options. Am J Dent 2021; 34:127-131. [PMID: 34143581 DOI: pmid/34143581] [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] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE To review diverse tests that could serve as a screening tool for the dental community to identify patients with potential COVID-19. METHODS Detailed automated searches of Medline, PubMed and EBM Review, including ACP Journal Club, the Cochrane Controlled Trials Register, and the Cochrane Database of Systematic Reviews of Effectiveness from 2019 to 2020 were conducted. Real-time polymerase chain reaction (RT-PCR) or quantitative (q) RT-PCR and Western blot assays were excluded. RESULTS Real time loop-mediated isothermal amplification (RT-LAMP) and Real time recombinase polymerase amplification (RT-RAP) are the most promising methodologies developed as screening tools, and could be a screening test option in dental practice to identify patients potentially carrying SARS-CoV-2 and to prevent cross-infection between patients and dental personnel. CLINICAL SIGNIFICANCE Biological risk management in the dental clinic is primarily focused on the wearing of protective equipment by dental personnel and disinfection/sterilization procedures for surfaces. With the absence of suitable antiviral drugs or vaccines, simple, rapid, and reliable detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) could be critical for preventing the spread of infection in dental practices.
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Affiliation(s)
- Sandra López-Verdín
- Health Science University Center, Institute for Dental Research, University of Guadalajara, Jalisco, Mexico,
| | - José R Prieto-Correa
- Health Science University Center, Institute for Dental Research, University of Guadalajara, Jalisco, Mexico
| | | | - Ronell Bologna-Molina
- Molecular Pathology Area, School of Dentistry, University of the Republic, Montevideo, Uruguay
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Schweitzer C, Garrido M, Paredes R, Stoore C, Reyes M, Bologna-Molina R, Fernández A, Hernández Rios M. Localization of interleukin-6 signaling complex in epithelialized apical lesions of endodontic origin. Clin Oral Investig 2021; 25:4075-4083. [PMID: 33411000 DOI: 10.1007/s00784-020-03738-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVES We aimed to determine the immunolocalization patterns of the interleukin (IL)-6 signaling complex in epithelialized and non-epithelialized apical lesions of endodontic origin (ALEOs). MATERIALS AND METHODS Epithelialized (n = 8) and non-epithelialized (n = 7) ALEOs were obtained from teeth with indication of extraction in patients with clinical diagnosis of apical periodontitis. All tissues were subjected to routine processing for histopathologic examination and primary antibodies for IL-6, IL-6 receptor (R), and glycoprotein (gp)-130 were used for immunohistochemistry and double immunofluorescence co-localization. RESULTS IL-6, IL-6R, and gp-130 were immunolocalized in endothelial cells and mononuclear leukocytes in a diffuse pattern within the connective tissue of epithelialized and non-epithelialized ALEOs. In the epithelialized lesions, two different patterns were identified: IL-6 signaling complex was localized within the proliferating epithelium in a diffuse intracellular pattern and in a cell membrane localization pattern within the mature epithelial lining, showing a decreased intensity towards the surface layers. CONCLUSIONS IL-6, IL-6R, and gp-130 localized to mononuclear inflammatory cells, vascular endothelial cells, and immature proliferating epithelia in a diffuse pattern and in mature lining epithelia in a localized cell membrane pattern, supporting a role for epithelial proliferation during cyst formation. Additional cell membrane co-localization of IL-6 receptor complex suggests classic signaling involvement in addition to trans-signaling.
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Affiliation(s)
- C Schweitzer
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
| | - M Garrido
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
| | - R Paredes
- Faculty of Veterinary Medicine, Faculty of Life Sciences, Universidad Andrés Bello, Av. República 440, 8320000, Santiago, Chile
| | - C Stoore
- Faculty of Veterinary Medicine, Faculty of Life Sciences, Universidad Andrés Bello, Av. República 440, 8320000, Santiago, Chile
| | - M Reyes
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
| | - R Bologna-Molina
- Faculty of Dentistry, Universidad de la República, General las Heras 1925, 11600, Montevideo, Uruguay
| | - A Fernández
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile
- Faculty of Dentistry, Universidad Andrés Bello, Av. República 440, 8320000, Santiago, Chile
| | - Marcela Hernández Rios
- Department of Oral Pathology and Medicine, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile.
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Sergio Livingstone Pohlhammer 943, Independencia, 8380000, Santiago, Chile.
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Pereira-Prado V, Vigil-Bastitta G, Sánchez-Romero C, Arocena M, Molina-Frechero N, González-González R, Meleti M, Bologna-Molina R. Immunoexpression of galectin-3 and its potential relation to hypoxia-inducible factor-1α in ameloblastomas. Biotech Histochem 2021; 96:296-301. [PMID: 32744463 DOI: 10.1080/10520295.2020.1800819] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In tumor biology, hypoxia triggers signaling pathways that induce transcription of genes related to angiogenesis, metastasis, glucose metabolism and apoptosis. We investigated the expression of hypoxia related proteins, galectin-3 (Gal-3) and hypoxia-inducible factor-1α (HIF-1α), in conventional (CA) and unicystic ameloblastomas (UA). We applied immunohistochemistry for Gal-3 and HIF-1α to 72 cases of ameloblastoma: 59 cases of CA and 13 cases of unicystic UA. Immunoexpression was evaluated semiquantitatively. Gal-3 expression was observed in 40% of the cases: 23/59 CA and 6/13 UA. HIF-1α immunostaining was observed in 55% of cases: 36/59 CA and 4/13 UA. 19 CA and 2 UA were positive for both markers. Immunostaining was evident in the center of the tumor islands, which exhibited squamous metaplasia or cystic degeneration. The expression of Gal-3 and HIF-1α in ameloblastomas could be interpreted as a response to hypoxic stress. Co-expression of both proteins in CA may suggest a potential interaction that participates in the biological behavior of this ameloblastoma variant.
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Affiliation(s)
- V Pereira-Prado
- Molecular Pathology Area, School of Dentistry, University of the Republic, Montevideo, Uruguay
| | - G Vigil-Bastitta
- Molecular Pathology Area, School of Dentistry, University of the Republic, Montevideo, Uruguay
| | - C Sánchez-Romero
- Molecular Pathology Area, School of Dentistry, University of the Republic, Montevideo, Uruguay
| | - M Arocena
- Biochemistry Area, School of Dentistry, Republic University, Montevideo, Uruguay
| | - N Molina-Frechero
- Health Care Department, Metropolitan Autonomous University, Xochimilco Unit, Mexico City, Mexico
| | - R González-González
- Department of Research, School of Dentistry, Juarez University of Durango State, Durango, Mexico
| | - M Meleti
- University Center of Dentistry, Department of Medicine and Surgery, University of Parma, Italy
| | - R Bologna-Molina
- Molecular Pathology Area, School of Dentistry, University of the Republic, Montevideo, Uruguay
- Department of Research, School of Dentistry, Juarez University of Durango State, Durango, Mexico
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Dornelles FML, Wagner VP, Fonseca FP, Ariotti C, Carrard VC, Vargas PA, Sánchez-Romero C, Beovide V, Bologna-Molina R, Martins MD. BDNF/TrkB/Akt Signaling Pathway Epithelial Odontogenic Tumors and Keratocyst: An Immunohistochemical Study Comparative With Dental Germs. Appl Immunohistochem Mol Morphol 2021; 29:366-373. [PMID: 32941187 DOI: 10.1097/pai.0000000000000874] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023]
Abstract
Odontogenic lesions (OL) are an important group of oral and maxillofacial diseases represented by odontogenic cysts, benign, and malignant tumors. The brain-derived neurotrophic factor (BDNF)/ tropomyosin receptor kinase B (TrkB) signaling pathway has multiple biological actions and has been identified as an important pathway in the proliferation, invasion, and survival of different epithelial tumors. Its role in the development of OL, however, has so far been unexplored. Our aim was to evaluate the BDNF/TrkB/Akt/p-RPS6 signaling pathway in OL of epithelial origin. This cross-sectional study comprised 3 cases of tooth germs, 25 cases of odontogenic keratocyst (OK), 29 cases of ameloblastoma (Am), and 6 cases of ameloblastic carcinoma. Immunohistochemical staining for BDNF, TrkB, p-Akt, and p-RPS6 was performed. OLs were evaluated according to the pattern of immunohistochemical expression in epithelial cells and by semiquantitative scores that considered the intensity of staining and percentage of positive cells. BDNF stromal expression was also assessed. No significant differences were observed with respect to the percentage of positive cases for all markers. Regarding the immunoreactive scores, BDNF and p-RPS6 expressions were similar in the odontogenic epithelium of all OL. However, TrkB and p-Akt were overexpressed in OK compared with ameloblastic carcinoma. In Am, epithelial BDNF was significantly higher compared with stromal expression. In conclusion, BDNF seems to participate in the development of cystic, benign, and malignant odontogenic epithelium to similar degrees. The acquisition of the invasive or malignant phenotype in odontogenic neoplasms is not associated with alterations in the BDNF/TrkB/Akt/RPS6 axis, which could be implicated in the differentiation process.
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Affiliation(s)
- Florencia M L Dornelles
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul
- Molecular Pathology Area, School of Dentistry, Universidad de La Republica (UDELAR), Montevideo, Uruguay
| | - Vivian P Wagner
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba
| | - Felipe P Fonseca
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Carla Ariotti
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul
| | - Vinicius C Carrard
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul
| | - Pablo A Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba
- Department of Oral Pathology and Oral Biology, School of Dentistry, University of Pretoria, Pretoria, South Africa
| | - Celeste Sánchez-Romero
- Molecular Pathology Area, School of Dentistry, Universidad de La Republica (UDELAR), Montevideo, Uruguay
| | - Veronica Beovide
- Molecular Pathology Area, School of Dentistry, Universidad de La Republica (UDELAR), Montevideo, Uruguay
| | - Ronell Bologna-Molina
- Molecular Pathology Area, School of Dentistry, Universidad de La Republica (UDELAR), Montevideo, Uruguay
| | - Manoela D Martins
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba
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Sánchez-Romero C, Bologna-Molina R, González-González R, Salazar-Rodríguez S, Mendoza NB. Comparison of orosomucoid-1 immunoexpression and angiogenesis between oral squamous cell carcinoma cases with different histological grades. J Oral Maxillofac Pathol 2021; 25:368. [PMID: 34703136 PMCID: PMC8491347 DOI: 10.4103/0973-029x.325243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 09/04/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) is the most common malignancy in this region, and thus, further elucidation of its tumoral mechanisms is important. One of the main roles of the acute-phase protein orosomucoid-1 (ORM1) is the promotion of angiogenesis, which is key for tumor nutrition and growth. AIM Our aim was to evaluate the immunohistochemical expression of ORM1 and the angiogenic activity indicated by microvascular density (MVD) in OSCC samples according to histological grade. MATERIALS AND METHODS Formalin-fixed, paraffin-embedded sections from 45 OSCC cases were submitted to immunohistochemistry: 25 were well-differentiated OSCC, 18 were moderately differentiated OSCC and 2 were poorly differentiated OSCC. ORM1 staining was evaluated by a semiquantitative method, and CD34-positive blood vessels were quantified to calculate the MVD. The results were statically analyzed. RESULTS All cases exhibited immunoexpression of ORM1 and CD34. However, no significant differences were found between the expression of both markers among the histological grades. In addition, the presence of ORM1 in inflammatory cells and in the extracellular matrix was detected in most cases. CONCLUSION These results suggest that the induction of angiogenesis is not the main role of ORM1 in OSCC and may be associated with the regulation of the immune/inflammatory response or the transport of protumoral molecules, such as sialyl-Lewis X or phorbol esters, which requires confirmation in future studies.
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Affiliation(s)
- Celeste Sánchez-Romero
- Molecular Pathology Area, School of Dentistry, University of the Republic, Montevideo, Uruguay
- Department of Research, School of Dentistry, Juarez University of the State of Durango, Durango, México
| | - Ronell Bologna-Molina
- Molecular Pathology Area, School of Dentistry, University of the Republic, Montevideo, Uruguay
- Department of Research, School of Dentistry, Juarez University of the State of Durango, Durango, México
| | - Rogelio González-González
- Department of Research, School of Dentistry, Juarez University of the State of Durango, Durango, México
| | - Sirced Salazar-Rodríguez
- Department of Anatomical Pathology, National Institute of Oncology and Radiobiology, Havana, Cuba
- Department of Anatomical Pathology, Society to Fight Cancer, Núcleo Manabí
| | - Nataly Barreiro Mendoza
- Department of Oral Pathology Research, School of Dentistry, University of San Gregorio Portoviejo, Portoviejo, Manabí, Ecuador
- Address for correspondence: Dr. Nataly Barreiro Mendoza, Department of Oral Pathology Research, School of Dentistry, University of San Gregorio Portoviejo, Av. Metropolitana 2005, 130101, Portoviejo, Manabí, Ecuador. E-mail:
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Sánchez-Romero C, Bologna-Molina R, Paes de Almeida O, Santos-Silva AR, Prado-Ribeiro AC, Brandão TB, Carlos R. Extranodal NK/T cell lymphoma, nasal type: An updated overview. Crit Rev Oncol Hematol 2021; 159:103237. [PMID: 33493634 DOI: 10.1016/j.critrevonc.2021.103237] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [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: 11/30/2019] [Revised: 06/09/2020] [Accepted: 01/16/2021] [Indexed: 02/07/2023] Open
Abstract
Extranodal NK/T-cell lymphoma, nasal type (ENKTCL-NT) is an aggressive malignancy associated with Epstein-Barr virus infection, with a geographic and racial predilection for some Asian and Latin American countries. ENKTCL-NT manifests as a necrotic process affecting nasal or upper aerodigestive structures and, rarely, extranasal sites such as skin, and the gastrointestinal tract. ENKTCL-NT was characterized by its poor prognosis irrespective of clinical stage and therapy. However, during the last two decades, advances in its clinicopathologic, genetic and molecular characterization have been achieved, as have changes in the chemotherapy regimens that, in combination with radiotherapy, are significantly improving the survival of these patients, especially in initial stages. For these reasons, we present an overview of the historical background of ENKTCL-NT along with an updated review of its potential etiological factors, clinicopathologic and molecular features, as well as its prognostic models, current treatment protocols, and future directions on potential promising therapeutic approaches.
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Affiliation(s)
- Celeste Sánchez-Romero
- Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira 901, Piracicaba, Sao Paulo 1314‑903, Brazil; Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango, Mexico.
| | - Ronell Bologna-Molina
- Molecular Pathology Area, Faculty of Dentistry, Universidad de la República, Montevideo, Uruguay; Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango, Mexico
| | - Oslei Paes de Almeida
- Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira 901, Piracicaba, Sao Paulo 1314‑903, Brazil
| | - Alan Roger Santos-Silva
- Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), Av. Limeira 901, Piracicaba, Sao Paulo 1314‑903, Brazil
| | - Ana Carolina Prado-Ribeiro
- Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil
| | - Thaís Bianca Brandão
- Dental Oncology Service, Instituto do Câncer do Estado de São Paulo (ICESP), Faculdade de Medicina da Universidade de São Paulo (FMUSP), São Paulo, Brazil
| | - Román Carlos
- Department of Pathology, Integra Cancer Center, Guatemala City, Guatemala
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Sánchez-Romero C, Pereira-Prado V, Sicco E, Suarez M, Tapia-Repetto G, Carreón-Burciaga R, Gónzalez-Gónzalez R, Villarroel-Dorrego M, Meleti M, Molina-Frechero N, Bologna-Molina R. Expression of caveolin-1 in tooth germ, ameloblastoma and ameloblastic carcinoma. Med Oral Patol Oral Cir Bucal 2021; 26:e238-e245. [PMID: 33037799 PMCID: PMC7980299 DOI: 10.4317/medoral.24151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 09/03/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The caveolin-1 protein (structural component of membrane caveolae) plays important roles in several biological functions, such as endocytosis, cell adhesion, and cell signaling. However, this protein has been associated with mechanisms of tumorigenesis in several neoplasms. The expression patterns and roles of caveolin-1 in the oral epithelium and in embryonic and odontogenic tumor tissues are still unclear. MATERIAL AND METHODS The expression of caveolin-1 was evaluated in samples of the normal gingival epithelium (n=7), human tooth germ (TG) (n=12), ameloblastoma (AM) (n=83), and ameloblastic carcinoma (AC) (n=9) by immunohistochemistry. Additionally, AM samples were analyzed by qRT-PCR and Western blot. RESULTS Most TG (91.7%), AM (73.5%) and AC (100%) samples showed diverse patterns of immunohistochemical positivity for caveolin-1, while only one gingival sample was positive. The transcript levels of cav-1 were significantly upregulated by 14.9-fold in AM tissue (P = 0.0014) compared to those in normal gingival epithelial tissue, as shown by qRT-PCR. Presence of caveolin-1 protein was confirmed by Western blot analysis. The caveolin-1 immunoexpression patterns throughout the stages of TG show its importance during odontogenesis. CONCLUSIONS The overexpression of caveolin-1 in AM and AC compared to its expression in normal gingival epithelium (adult tissue) suggests a possible role of caveolin-1 in protumoral events, but due to the similar immunoexpression observed in AM and AC, caveolin-1 may not necessarily participate in the malignant transformation process. However, future studies are needed to clarify and confirm these hypotheses.
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Affiliation(s)
- C Sánchez-Romero
- Molecular Pathology Area, Faculty of Dentistry University of the Republic, Uruguay
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Lavalle-Carrasco J, Molina-Frechero N, Nevárez-Rascón M, Sánchez-Pérez L, Hamdan-Partida A, González-González R, Cassi D, Isiordia-Espinoza MA, Bologna-Molina R. Recent Biomarkers for Monitoring the Systemic Fluoride Levels in Exposed Populations: A Systematic Review. Int J Environ Res Public Health 2021; 18:ijerph18010317. [PMID: 33406716 PMCID: PMC7795285 DOI: 10.3390/ijerph18010317] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 12/27/2020] [Accepted: 12/29/2020] [Indexed: 02/07/2023]
Abstract
Fluorides are compounds that can be found in the minerals of soil with volcanic rocks. Different populations are exposed to high levels of fluorides through drinking water that, due to their chronic intake, cause several types of damage to health. Nails and hair, denominated as recent biomarkers, have been employed for monitoring systemic fluoride from long-term exposure to fluorides. The aim of this study was to perform a systematic review of the use of recent biomarkers for monitoring systemic fluoride levels in exposed populations and verify their validity in the measurement of the fluorine (F-) concentration within the body. A digital search was performed in the databases PubMed/Medline, Springer Link, Cochrane, and Scopus of original articles that employed recent biomarkers for monitoring systemic F-. Seventeen articles were included in this analysis; the recorded variables were the F- amount in each assessed biomarker, source of exposure, and total daily fluoride intake (TDFI). TDFI was associated with F- in nails and hair, as well as the exposure through drinking water. In conclusion, recent biomarkers are adequate for monitoring the systemic fluoride levels by evaluating the chronic/subchronic exposure through different sources, mainly drinking water, considering nails better than hair for this purpose.
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Affiliation(s)
- Jesús Lavalle-Carrasco
- Dental Sciences, Health Care Department, Autonomous Metropolitan University Xochimilco (UAM), Mexico City 04960, Mexico;
| | - Nelly Molina-Frechero
- Health Care Department, Autonomous Metropolitan University Xochimilco (UAM), Mexico City 04960, Mexico; (L.S.-P.); (A.H.-P.)
- Correspondence:
| | - Martina Nevárez-Rascón
- Faculty of Dentistry, Autonomous University of Chihuahua (UACH), Chihuahua 31000, Mexico;
| | - Leonor Sánchez-Pérez
- Health Care Department, Autonomous Metropolitan University Xochimilco (UAM), Mexico City 04960, Mexico; (L.S.-P.); (A.H.-P.)
| | - Aida Hamdan-Partida
- Health Care Department, Autonomous Metropolitan University Xochimilco (UAM), Mexico City 04960, Mexico; (L.S.-P.); (A.H.-P.)
| | - Rogelio González-González
- Department of Research, School of Dentistry, Juarez University of the Durango State (UJED), Durango 34000, Mexico; (R.G.-G.); (R.B.-M.)
| | - Diana Cassi
- Department of Surgical, Medical, Dental and Morphological Science, University of Modena, 41121 Modena, Italy;
| | - Mario Alberto Isiordia-Espinoza
- Institute of Research in Medical Sciences, Department of Clinics, Los Altos University Center, University of Guadalajara (UdG), Tepatitlán de Morelos, Jalisco 47650, Mexico;
| | - Ronell Bologna-Molina
- Department of Research, School of Dentistry, Juarez University of the Durango State (UJED), Durango 34000, Mexico; (R.G.-G.); (R.B.-M.)
- Molecular Pathology Area, School of Dentistry, University of the Republic (UDELAR), Montevideo 11200, Uruguay
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Lopez-Labady J, Bologna-Molina R, Villarroel-Dorrego M. Expression of Interleukin-1ß and Interleukin-8 in Oral Potentially Malignant Disorders and Carcinomas. Front Oral Health 2021; 2:649406. [PMID: 35048001 PMCID: PMC8757690 DOI: 10.3389/froh.2021.649406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 06/25/2021] [Indexed: 02/05/2023] Open
Abstract
Objective: To evaluate interleukin-1ß (IL-1ß) and interleukin-8 (IL-8) epithelial expressions in potentially malignant disorders of the oral mucosa as malignant predictive markers. Study design: About 55 tissues embedded in paraffin, comprising 15 oral lichen planus (OLP) lesions, 15 leukoplakias, 15 oral squamous cell carcinomas (OSCC), and 10 samples of normal oral mucosa were included in the study. IL-1ß and 8 expressions were assessed by immunohistochemistry using antibodies antihuman IL-1ß human (sc-7884, Santa Cruz® H-153) and antihuman IL-8 (ab7747, abcam®). The number of positive cells was compared using Student's t-test. Any p-value < 0.05 was considered statistically significant. Results: Nuclear and cytoplasmatic keratinocyte staining were positive for both cytokines in all study groups. However, a statistically significant decrease was observed within all cases compared to normal mucosa, both staining for IL-1β and 8. Moreover, IL-8 showed significant differences between OLP and leukoplakia, and when compared to OSCC. Conclusions: Oral epithelial expression of IL-1β and 8 seems to decrease when the malignant transformation of the oral mucosa increases.
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Affiliation(s)
| | - Ronell Bologna-Molina
- Molecular Pathology Area, School of Dentistry, University of the Republic, Uruguay University of the Republic (UDELAR), Montevideo, Uruguay
| | - Mariana Villarroel-Dorrego
- Oral Histopathology Laboratory, Dental School, Universidad Central de Venezuela, Caracas, Venezuela
- *Correspondence: Mariana Villarroel-Dorrego
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Guimarães LM, Gomes IP, Pereira TDSF, de Andrade BAB, Romañach MJ, de Lacerda JCT, Pontes HAR, Brennan PA, Rahimi S, Carlos R, Mosqueda-Taylor A, Bologna-Molina R, Passador-Santos F, Gomez RS, Gomes CC. KRAS mutations in brown tumor of the jaws in hyperparathyroidism. J Oral Pathol Med 2020; 49:796-802. [PMID: 32492752 DOI: 10.1111/jop.13048] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2020] [Indexed: 02/05/2023]
Abstract
BACKGROUND Brown tumors are giant cell-rich lesions that result from abnormal bone metabolism in hyperparathyroidism, one of the most common endocrine disorders worldwide. Brown tumors occasionally affect the jaws and, despite well-known clinical and microscopic features, their molecular pathogenesis remains unclear. We investigated the presence of pathogenic activating mutations in TRPV4, FGFR1, and KRAS in a cohort of brown tumors since these have recently been reported in giant-cell lesions of the jaws and non-ossifying fibromas of the bones (FGFR1 and KRAS), which are histologic mimics of brown tumors. METHODS We target sequenced 13 brown tumors of the jaws associated with primary or secondary hyperparathyroidism. As mutations in these genes are known to activate the MAPK/ERK signaling pathway, we also assessed the immunostaining of the phosphorylated form of ERK1/2 (pERK1/2) in these lesions. RESULTS KRAS pathogenic mutations were detected in seven cases (p.G12V n = 4, p.G12D n = 1, p.G13D n = 1, p.A146T n = 1). KRAS variants of unknown significance (VUS), p.A134T and p.E37K, were also detected. All samples showed wild-type sequences for FGFR1 and TRPV4 genes. The activation of the MAPK/ERK signaling pathway was demonstrated by pERK1/2 immunohistochemical positivity of the brown tumors´ mononuclear cells. CONCLUSION Mutations in KRAS and activation of the MAPK/ERK signaling pathway were detected in brown tumors of hyperparathyroidism of the jaws, expanding the spectrum of giant cell lesions whose molecular pathogenesis involve RAS signaling.
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Affiliation(s)
- Letícia Martins Guimarães
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Isadora Pereira Gomes
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Thaís Dos Santos Fontes Pereira
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | | | - Mário José Romañach
- Department of Oral Diagnosis and Pathology, School of Dentistry, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, RJ, Brazil
| | | | - Hélder Antônio Rebelo Pontes
- Service of Oral Pathology, Hospital Universitário João de Barros Barreto, Universidade Federal do Pará (UFPA), Belém, Brazil
| | - Peter A Brennan
- Department of Oral and Maxillofacial Surgery, Queen Alexandra Hospital, Portsmouth, UK
| | - Siavash Rahimi
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, UK
- Frontier Pathology-Royal Sussex County Hospital, Brighton, UK
| | - Román Carlos
- Centro Clinico de Cabeza y Cuello, Guatemala City, Guatemala
| | | | - Ronell Bologna-Molina
- Molecular Pathology Area, School of Dentistry, Universidad de la República (UDELAR), Montevideo, Uruguay
| | | | - Ricardo Santiago Gomez
- Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Carolina Cavaliéri Gomes
- Department of Pathology, Institute of Biological Science, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
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Viani MV, Corcione L, Di Blasio C, Bologna-Molina R, Vescovi P, Meleti M. A Single Case Report of Granular Cell Tumor of the Tongue Successfully Treated through 445 nm Diode Laser. Healthcare (Basel) 2020; 8:healthcare8030267. [PMID: 32823546 PMCID: PMC7551446 DOI: 10.3390/healthcare8030267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/21/2020] [Accepted: 08/11/2020] [Indexed: 02/07/2023] Open
Abstract
Oral granular cell tumor (GCT) is a relatively rare, benign lesion that can easily be misdiagnosed. Particularly, the presence of pseudoepitheliomatous hyperplasia might, in some cases, lead to the hypothesis of squamous cell carcinoma. Surgical excision is the treatment of choice. Recurrence has been reported in up to 15% of cases treated with conventional surgery. Here, we reported a case of GCT of the tongue in a young female patient, which was successfully treated through 445 nm diode laser excision. Laser surgery might reduce bleeding and postoperative pain and may be associated with more rapid healing. Particularly, the vaporization effect on remnant tissues could eliminate GCT cells on the surgical bed, thus hypothetically leading to a lower rate of recurrence. In the present case, complete healing occurred in 1 week, and no recurrence was observed after 6 months. Laser surgery also allows the possibility to obtain second intention healing. Possible laser-induced histopathological artifacts should be carefully considered.
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Affiliation(s)
- Maria Vittoria Viani
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (L.C.); (P.V.); (M.M.)
- Correspondence:
| | - Luigi Corcione
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (L.C.); (P.V.); (M.M.)
| | | | | | - Paolo Vescovi
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (L.C.); (P.V.); (M.M.)
| | - Marco Meleti
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy; (L.C.); (P.V.); (M.M.)
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Donohue-Cornejo A, de Almeida OP, Sánchez-Romero C, Bologna-Molina R, Espinosa-Cristóbal LF, González JCC. Spindle cell carcinoma of the maxillary sinus with extension to the oral cavity. Autops Case Rep 2020; 10:e2020161. [PMID: 33344294 PMCID: PMC7702957 DOI: 10.4322/acr.2020.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Spindle cell carcinoma (SCC) is a rare variant of squamous cell carcinoma characterized by elongated and pleomorphic epithelial cells that resemble a sarcoma. Due to its rareness, and histological resemblance to various sarcomas, the diagnosis of this neoplasia is challenging. Herein we present the case of an 82-year-old female with a polypoid, ulcerated, soft tissue mass located on the left side of the maxilla. The tomographic examination showed a hyperdense mass that infiltrated the orbital cavity, ethmoidal cells, middle and lower nasal concha, maxillary sinus, zygomatic arch, and mandibular ramus on the left side. Histopathologically, the tumor was composed of spindle cells that were sarcomatous in appearance, with aberrant mitosis, along with a group of pleomorphic cells with a more epithelioid and hyperchromatic appearance on a stroma of densely vascularized fibrous tissue. The immunohistochemistry panel used to determine the lineage of the tumor rendered the diagnosis of SCC. The diagnosis of SCC is challenging to the pathologist since its morphology can resemble a sarcoma. Thus, immunohistochemistry is a valuable resource to support the diagnosis. We propose that SCC should be considered when examining a biphasic neoplasm with the aforementioned histological characteristics and markers.
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Affiliation(s)
- Alejandro Donohue-Cornejo
- Autonomous University of Ciudad Juárez, Biomedical Sciences Institute, Stomatology Department. Ciudad Juárez, Chihuahua, México
| | - Oslei Paes de Almeida
- State University of Campinas, Dentistry Faculty of Piracicaba, Diagnosis Department, Oral Pathology Section. Piracicaba, SP, Brazil
| | - Celeste Sánchez-Romero
- University of the Republic, Faculty of Dentistry, Molecular Pathology Area. Montevideo, Uruguay
| | - Ronell Bologna-Molina
- University of the Republic, Faculty of Dentistry, Molecular Pathology Area. Montevideo, Uruguay
| | | | - Juan Carlos Cuevas González
- Autonomous University of Ciudad Juárez, Biomedical Sciences Institute, Stomatology Department. Ciudad Juárez, Chihuahua, México
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Bologna-Molina R, Pereira-Prado V, Sánchez-Romero C, González-González R, Mosqueda-Taylor A. Primordial odontogenic tumor: A systematic review. Med Oral Patol Oral Cir Bucal 2020; 25:e388-e394. [PMID: 32040459 PMCID: PMC7211380 DOI: 10.4317/medoral.23432] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 11/11/2019] [Indexed: 12/17/2022] Open
Abstract
Background The primordial odontogenic tumor (POT) is a recently described benign entity with histopathological and immunohistochemical features suggesting its origin during early odontogenesis. Aim: To integrate the available data published on POT into a comprehensive analysis to better define its clinicopathological and molecular features.
Material and Methods An electronic systematic review was performed up to September 2019 in multiple databases.
Results A total of 13 publications were included, representing 16 reported cases and 3 molecular studies. The mean age of the affected patients was 11.6 years (range 2-19), with a slight predominance in males (56.25%). The posterior mandible was the main location (87.5%), with only two cases affecting the posterior maxilla. All cases appeared as a radiolucent lesion in close relationship to an unerupted tooth. Recurrences have not been reported to date. Microscopically, POT comprises fibromyxoid tissue with variable cellularity surrounded by a cuboidal to columnar odontogenic epithelium but without unequivocal dental hard tissue formation. A delicate fibrous capsule surrounds (at least partially) the tumor. The epithelial component shows immunohistochemical positivity for amelogenin, CK19, and CK14, and variable expression of Glut-1, Galectin-3 and Caveolin-1, Vimentin, p-53, PITX2, Bcl-2, Bax and Survivin; the mesenchymal tissue is positive for Vimentin, CD90, p-53, PITX2, Bcl-2, Bax, and Survivin, and the subepithelial region exhibits the strong expression of Syndecan-1 and CD34. The Ki-67 index is low (<5%). The negative or weak expression of dentinogenesis-associated genes could explain the inhibition of dentin and subsequent enamel formation in this neoplasm.
Conclusions POT is an entity with a well-defined clinicopathological, immunohistochemical and molecular profile that must be properly diagnosed and differentiated from other odontogenic lesions and treated consequently. Key words:Primordial odontogenic tumor, systematic review.
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Affiliation(s)
- R Bologna-Molina
- Health Care Department Universidad Autónoma Metropolitana Calzada del Hueso 1100, Col Villa Quietud Delg. Coyaoacan, C.P.04960 Ciudad de México
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Duran-Merino D, Molina-Frechero N, Sánchez-Pérez L, Nevárez-Rascón M, González-González R, Tremillo-Maldonado O, Cassi D, Bologna-Molina R. ENAM Gene Variation in Students Exposed to Different Fluoride Concentrations. Int J Environ Res Public Health 2020; 17:ijerph17061832. [PMID: 32178265 PMCID: PMC7143052 DOI: 10.3390/ijerph17061832] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/06/2020] [Accepted: 03/08/2020] [Indexed: 02/07/2023]
Abstract
UNLABELLED The ENAM gene is important in the formation of tooth enamel; an alteration can affect the lengthening of the crystals, and the thickness in enamel. The objective was to determine the presence of the single nucleotide variant (SNV) rs12640848 of the ENAM gene in students exposed to different concentrations of fluoride. METHODS A cross-sectional study was conducted on students exposed to high concentrations of fluoride in the city of Durango which were divided according to the severity of fluorosis and dental caries. Genotype determination was performed by DNA sequencing. The relationship between the severity of dental fluorosis and the allele distribution was determined by the Fisher's exact and Kruskal-Wallis tests. RESULTS Seventy-one students were included for the sequencing. In the different allelic variations, for the normal genotype AA/TT, the control group presented 75%, for the AG/TC variation, 70.8% in the TF ≤ 4 group, 65% in TF ≥ 5, and 16.7% in TF = 0; with respect to GG/CC variation, 12.5% in TF ≤ 4, 22% in TF ≥ 5, and 8.3% in TF = 0 group (p = 0.000). CONCLUSION The ENAM gene showed an association in the population exposed to different concentrations of fluoride.
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Affiliation(s)
- Denisse Duran-Merino
- Dental Sciences, Autonomous Metropolitan University Xochimilco (UAM), Calzada del Hueso 1100, Mexico City 04900, Mexico;
| | - Nelly Molina-Frechero
- Department of Health Care, Autonomous Metropolitan University Xochimilco (UAM), Calzada del Hueso 1100, Mexico City 04900, Mexico;
- Correspondence: ; Tel.: +52-55-5483-7182
| | - Leonor Sánchez-Pérez
- Department of Health Care, Autonomous Metropolitan University Xochimilco (UAM), Calzada del Hueso 1100, Mexico City 04900, Mexico;
| | - Martina Nevárez-Rascón
- School of Dentistry, Autonomous University of Chihuahua (UACH), Chihuahua, Campus I Av. Universidad s/n, Chihuahua 31000, Mexico;
| | - Rogelio González-González
- Department of Research, School of Dentistry, Juarez University of the State of Durango, Durango (UJED) Predio Canoas s/n, Durango 34000, Mexico; (R.G.-G.); (O.T.-M.)
| | - Omar Tremillo-Maldonado
- Department of Research, School of Dentistry, Juarez University of the State of Durango, Durango (UJED) Predio Canoas s/n, Durango 34000, Mexico; (R.G.-G.); (O.T.-M.)
| | - Diana Cassi
- Department of Surgical, Medical, Dental and Morphological Science–University of Modena, 41121 Modena, Italy;
| | - Ronell Bologna-Molina
- Molecular Pathology Area, School of Dentistry, University of the Republic, Uruguay (UDELAR) Montevideo 11600, Montevideo 11200, Uruguay;
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Affiliation(s)
- Ronell Bologna-Molina
- Molecular Pathology Area, School of Dentistry, Universidad de la República (UDELAR), Montevideo, Uruguay
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Tremillo-Maldonado O, Molina-Frechero N, González-González R, Damián-Matsumura P, Sánchez-Pérez L, Sicco E, Suarez M, Bologna-Molina R. DNA sequencing reveals AMELX, ODAM and MMP20 variations in dental fluorosis. Arch Oral Biol 2020; 110:104626. [PMID: 31838295 DOI: 10.1016/j.archoralbio.2019.104626] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 10/30/2019] [Accepted: 11/26/2019] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Dental fluorosis (DF) is a dental development disorder caused by chronic fluoride overconsumption. There are differences in the susceptibility to and severity of DF in studied populations. The objective of the present study was to determine if single-nucleotide variations (SNVs) in the genes Amelogenin (AMELX), Odontogenic Ameloblast Associated (ODAM) and Matrix Metalloproteinase 20 (MMP20) are associated with DF by evaluating the relationship between variations in these genes and the degree of DF severity. SUBJECTS AND METHODS Schoolchildren from two regions of Durango State and Mexico City, Mexico, were studied. The DF phenotype was determined using the Thylstrup and Fejerskov (TF) index. DNA was obtained from the buccal mucosa of each participant, and the presence of the variations rs946252 in AMELX, rs1514392 in ODAM and rs1784418 in MMP20 was determined by bidirectional DNA sequencing. RESULTS A total of 180 DNA samples from 30 schoolchildren from 2 areas of Durango State were sequenced and analyzed. Differences in the severity of DF were found between the study areas (p = 0.006). SNVs in theMMP20 gene were present in 76.9 % of the participants in the high fluoride concentration and lower DF severity area. CONCLUSION AMELX and ODAM variations was not different between the two populations with respect to DF severity; however, the presence of rs1784418 differed between phenotypes with regard to susceptibility to DF. Therefore, MMP20 might be related to the various phenotypes of DF and may serve as a protective marker.
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Affiliation(s)
- Omar Tremillo-Maldonado
- Biological and Health Sciences Ph.D. Program, Metropolitan Autonomous University, Mexico City, Mexico
| | - Nelly Molina-Frechero
- Health and Care Department, Metropolitan Autonomous University - Xochimilco, Mexico City, Mexico.
| | | | - Pablo Damián-Matsumura
- Department of Biology of Reproduction, Metropolitan Autonomous University - Iztapalapa, Mexico City, Mexico
| | - Leonor Sánchez-Pérez
- Health and Care Department, Metropolitan Autonomous University - Xochimilco, Mexico City, Mexico
| | - Estefanía Sicco
- Molecular Pathology, Faculty of Dentistry, Universidad de la República (UDELAR), Montevideo, Uruguay
| | - Mariana Suarez
- Molecular Pathology, Faculty of Dentistry, Universidad de la República (UDELAR), Montevideo, Uruguay
| | - Ronell Bologna-Molina
- Molecular Pathology, Faculty of Dentistry, Universidad de la República (UDELAR), Montevideo, Uruguay
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González-González R, López-Verdín S, Lavalle-Carrasco J, Molina-Frechero N, Isiordia-Espinoza M, Carreón-Burciaga RG, Bologna-Molina R. Current concepts in ameloblastoma-targeted therapies in B-raf proto-oncogene serine/threonine kinase V600E mutation: Systematic review. World J Clin Oncol 2020; 11:31-42. [PMID: 31976308 PMCID: PMC6935689 DOI: 10.5306/wjco.v11.i1.31] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 10/23/2019] [Accepted: 11/06/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Ameloblastomas are common benign epithelial odontogenic neoplasms that present an aggressive and unpredictable behavior that may modify treatment strategies. Different signaling pathways that participate in the progression of these tumors have been identified. B-raf proto-oncogene serine/threonine kinase (BRAF) is a protein involved in the behavior of ameloblastomas, and it is related to many cell mechanisms. BRAF gene mutations have been identified in ameloblastomas, of which the BRAF V600E (valine substituted by glutamic acid at amino acid 600) mutation has been the most common and can be present concomitantly with other mutations that may be involved in its behavior. Targeted therapies have been used as an alternative in the case of resistance or contraindications to conventional treatments.
AIM To document the presence of BRAF V600E and additional mutations, their behavior, and targeted therapies in these tumors.
METHODS An electronic literature search was conducted according to PRISMA guidelines in PubMed/MEDLINE, Cochrane, EMBASE, and SpringerLink using the terms “ameloblastomas”, “BRAF V600E”, “additional mutations”, and “targeted therapies”. Ameloblastomas were classified according to WHO guidelines. Inclusion criteria were articles in English, published not more than 10 years ago, and studies with laboratory works related to BRAF V600E. Articles were evaluated by two independent reviewers and retrieved for full-text evaluation. The EBLIP Critical Appraisal Checklist was used to evaluate the quality of the eligible studies. Descriptive statistical analysis was performed.
RESULTS Two independent reviewers, with a substantial concordance indicated by a kappa coefficient of k = 0.76, evaluated a total of 19 articles that were included in this study. The analysis registered 521 conventional ameloblastomas (AM), 81 unicystic ameloblastomas (UA), 13 ameloblastic carcinomas (AC), three metastatic ameloblastomas (MA), and six peripheral ameloblastomas (PA), of which the histopathological type, anatomic location, laboratory tests, expression of BRAF mutation, and additional mutations were registered. The BRAF V600E mutation was found in 297 AM (57%), 63 UA (77.7%), 3 AC (23%), 1 MA (50%), and 5 PA (83.3%). Follicular type predominated with a total of 116 cases (40%), followed by plexiform type with 63 cases (22.1%). Furthermore, both types presented additional mutations, in which alterations in JAK3 P132T, SMARCB1, PIK3CA, CTNNB1, SMO, and BRAF G606E genes were found. Four case reports were found with targeted therapy to BRAF V600E.
CONCLUSION The identification of BRAF V600E and additional mutations as an aid in targeted therapies has been a breakthrough in alternative treatments of ameloblastomas where surgical treatments are contraindicated.
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Affiliation(s)
- Rogelio González-González
- Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico
| | - Sandra López-Verdín
- Research Institute of Dentistry, Health Science Center, Universidad de Guadalajara, Guadalajara 4430, Mexico
| | - Jesús Lavalle-Carrasco
- Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico
| | - Nelly Molina-Frechero
- Department of Health Care, Xochimilco Unit, Universidad Autónoma Metropolitana Xochimilco, México 04960, Mexico
| | - Mario Isiordia-Espinoza
- Department of Clinics, Biomedical Sciences Division, Centro Universitario de los Altos, Universidad de Guadalajara, Tepetitlán de Morelos 47620, Mexico
| | - Ramón G Carreón-Burciaga
- Department of Research, School of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico
| | - Ronell Bologna-Molina
- Molecular Pathology Area, School of Dentistry, Universidad de la República, Montevideo 11600, Uruguay
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Molina-Frechero N, Nevarez-Rascón M, Tremillo-Maldonado O, Vergara-Onofre M, Gutiérrez-Tolentino R, Gaona E, Castañeda E, Jarquin-Yañez L, Bologna-Molina R. Environmental Exposure of Arsenic in Groundwater Associated to Carcinogenic Risk in Underweight Children Exposed to Fluorides. Int J Environ Res Public Health 2020; 17:ijerph17030724. [PMID: 31979150 PMCID: PMC7036991 DOI: 10.3390/ijerph17030724] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/10/2020] [Accepted: 01/17/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND The purpose of this study was to determine the concentration of inorganic arsenic (As) in the potable water available to the population to be able to estimate the non-carcinogenic risks for underweight children and the carcinogenic risk for adults exposed to As intake who live in the Mezquital municipality, Durango, Mexico. METHODS The As content was quantifed in the water supply sources for human use and its intake was estimated in Mezquital population, southern Durango. With the data obtained, the hazard quotient (HQ) was calculated to determine the non-carcinogenic risk to develop chronic systemic effects in underweight children. The Environmental Protection Agency (EPA) reference health values estimating As exposure risk are from 0.0003 mg/kg/day (non-carcinogenic) to 1.5 mg/kg/day (carcinogenic risk). RESULTS The analyzed waters presented as concentrations that varied from 0.3 to 10.2 µg/L, with a mean of 7.35 µg/L (CI 95% 6.27-8.38). The exposure dose was 0.4 to 1.36, and the HQ was 1.90 to 6.48 mg/kg/day, the estimated carcinogenic risk from adults varied from 1.28 to 4.37E-4, with values of 3.74-4.37E-4 mg/kg/day in central area. CONCLUSIONS The children are at risk to develop chronic systemic effects due to ingestion of As from water.
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Affiliation(s)
- Nelly Molina-Frechero
- Division of Biological and Health Sciences, Universidad Autónoma Metropolitana, Mexico City 04460, Mexico; (N.M.-F.); (M.V.-O.); (R.G.-T.); (E.G.); (E.C.)
| | | | - Omar Tremillo-Maldonado
- Research Department, Faculty of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico;
| | - Marcela Vergara-Onofre
- Division of Biological and Health Sciences, Universidad Autónoma Metropolitana, Mexico City 04460, Mexico; (N.M.-F.); (M.V.-O.); (R.G.-T.); (E.G.); (E.C.)
| | - Rey Gutiérrez-Tolentino
- Division of Biological and Health Sciences, Universidad Autónoma Metropolitana, Mexico City 04460, Mexico; (N.M.-F.); (M.V.-O.); (R.G.-T.); (E.G.); (E.C.)
| | - Enrique Gaona
- Division of Biological and Health Sciences, Universidad Autónoma Metropolitana, Mexico City 04460, Mexico; (N.M.-F.); (M.V.-O.); (R.G.-T.); (E.G.); (E.C.)
| | - Enrique Castañeda
- Division of Biological and Health Sciences, Universidad Autónoma Metropolitana, Mexico City 04460, Mexico; (N.M.-F.); (M.V.-O.); (R.G.-T.); (E.G.); (E.C.)
| | - Lizet Jarquin-Yañez
- Center of Applied Research in Environment and Health, CIACYT, Universidad Autónoma de San Luis Potosí, San Luis Potosí 78120, Mexico;
| | - Ronell Bologna-Molina
- Research Department, Faculty of Dentistry, Universidad Juárez del Estado de Durango, Durango 34000, Mexico;
- Molecular Pathology, School of Dentistry, Universidad de la República, Montevideo 11600, Uruguay
- Correspondence:
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50
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Villarroel-Dorrego M, Romero ME, Reyes O, Pereira-Prado V, Bologna-Molina R. Study of Apoptosis and Intercellular Adhesion in Oral Mucosa of Patients With Osteonecrosis Induced by Biphosphonates. Reumatol Clin (Engl Ed) 2019; 15:e75-e77. [PMID: 29132750 DOI: 10.1016/j.reuma.2017.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Accepted: 10/04/2017] [Indexed: 02/07/2023]
Affiliation(s)
| | - María Elena Romero
- Cirugía Bucal y Maxilofacial, Hospital General del Oeste «Dr. José Gregorio Hernández», Caracas, Venezuela
| | - Orlando Reyes
- Medicina Estomatológica, Universidad Central de Venezuela, Caracas, Venezuela
| | - Vanesa Pereira-Prado
- Área de Patología Molecular, Facultad de Odontología, Universidad de la República, Montevideo, Uruguay
| | - Ronell Bologna-Molina
- Área de Patología Molecular, Facultad de Odontología, Universidad de la República, Montevideo, Uruguay
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