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Nascimento RB, Paiva KBS, Risteli M, Silva LHS, Rodini CO, Rodrigues MFSD, De Cicco R, Lopez RVM, Salo TA, Nunes FD, Xavier FCA. Loss of Caveolin-1 Expression in Tumor Cells is Associated with Increased Aggressiveness and Cell Invasion in Oral Squamous Cell Carcinoma. Head Neck Pathol 2023; 17:618-630. [PMID: 37233885 PMCID: PMC10513997 DOI: 10.1007/s12105-023-01562-w] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 05/18/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND Changes in Caveolin-1 (CAV-1) expression are related to tumorigenesis. The aim of this study was to evaluate the role of CAV-1 in tumor progression in oral squamous cell carcinoma (SCC) tissue samples and the effect of CAV-1 silencing on two oral tongue SCC (OTSCC) cell lines (SCC-25, from a primary tumor, and HSC-3 from lymph node metastases). METHODS Mycroarray hybridization, mRNA expression, and immunohistochemistry were performed on OSCC tissue samples and corresponding non-tumoral margin tissues. The effects of CAV-1 silencing (siCAV-1) on cell viability, membrane fluidity, on the expression of epithelial to mesenchymal transition (EMT) markers and on cell migration and invasion capacity of OTSCC cell lines were evaluated. RESULTS Microarray showed a greater CAV-1 expression (1.77-fold) in OSCC tumors than in non-tumoral tissues and 2.0-fold more in less aggressive OSCCs. However, significant differences in CAV-1 gene expression were not seen between tumors and non-tumoral margins nor CAV-1 with any clinicopathological parameters. CAV-1 protein was localized both in carcinoma and in spindle cells of the tumor microenvironment (TME), and CAV-1 positive TME cells were associated with smaller/more aggressive tumors, independent of the carcinoma cells' expression. Silencing of CAV-1 increased cell viability only in SCC-25 cells. It also stimulated the invasion of HSC-3 cells and increased ECAD and BCAT mRNA in these cells; however, the protein levels of the EMT markers were not affected. CONCLUSION Decreased expression of CAV-1 by tumor cells in OSCC and an increase in the TME were associated with increased cell invasiveness and tumor aggressiveness.
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Affiliation(s)
- Rebeca Barros Nascimento
- Laboratório de Patologia Oral Cirúrgica, Faculdade de Odontologia, Universidade Federal da Bahia, Rua Araújo Pinho, 62, Canela, Salvador, Bahia, 40110-150, Brazil
| | - Katiúcia Batista Silva Paiva
- Laboratório de Biologia da Matriz Extracelular e Interação Celular, Departamento de Anatomia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Maija Risteli
- Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Luiz Henrique Santos Silva
- Laboratório de Biologia da Matriz Extracelular e Interação Celular, Departamento de Anatomia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, Brazil
| | - Camila Oliveira Rodini
- Departamento de Ciências Biológicas, Faculdade de Odontologia de Bauru, Universidade de São Paulo, Bauru, Brazil
| | | | - Rafael De Cicco
- Departamento de Cirurgia de Cabeça e Pescoço, Instituto de Câncer Doutor Arnaldo Vieira de Carvalho, São Paulo, Brazil
| | | | - Tuula Anneli Salo
- Cancer and Translational Medicine Research Unit, Faculty of Medicine, University of Oulu, Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki, Finland
- Department of Pathology, HUSLAB, Helsinki University Central Hospital, University of Helsinki, Helsinki, Finland
| | - Fábio Daumas Nunes
- Laboratório de Patologia Molecular, Faculdade de Odontologia, Universidade de São Paulo, São Paulo, Brazil
| | - Flávia Caló Aquino Xavier
- Laboratório de Patologia Oral Cirúrgica, Faculdade de Odontologia, Universidade Federal da Bahia, Rua Araújo Pinho, 62, Canela, Salvador, Bahia, 40110-150, Brazil.
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Xavier FCA, Silva JC, Rodini CO, Rodrigues MFSD. Mechanisms of immune evasion by head and neck cancer stem cells. Front Oral Health 2022; 3:957310. [PMID: 35982868 PMCID: PMC9378780 DOI: 10.3389/froh.2022.957310] [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: 05/30/2022] [Accepted: 07/14/2022] [Indexed: 11/13/2022] Open
Abstract
Different mechanisms are involved in immune escape surveillance driven by Oral and Head and Neck Cancer Stem Cells (HNCSCs). The purpose of this review is to show the most current knowledge regarding the main impact of HNCSCs on tumor evasion through immunosuppression, CSCs phenotypes and environmental signals, highlighting strategies to overcome immune evasion. The main results drive the participation of cell surface receptors and secreted products and ligands, the crosstalk between cells, and genetic regulation. The reduction in CD8+ T cell recruitment and decreased effector of anti-PD-1 therapy by cells expressing BMI1 is a key event; Natural Killer cell ligands and cytokines needed for its activation and expansion are crucial to control tumor growth and to target CSCs by immunotherapy; CSCs expressing ALDH1 are related to increased expression of PD-L1, with a positive link between DNMT3b expression; CD276 expression in CSCs can act as a checkpoint inhibitor and together with Activator Protein 1 (AP-1) activation, they create continuous positive feedback that enables immune evasion by suppressing CD8+ T cells and prevent immune cell infiltration in head and neck cancer. These data demonstrate the relevance of the better understanding of the interaction between HNCSCs and immune cells in the tumor microenvironment. The ultimate clinical implication is to ground the choice of optimized targets and improve immune recognition for ongoing treatments as well as the response to approved immunotherapies.
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Affiliation(s)
- Flávia Caló Aquino Xavier
- Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Salvador, BA, Brazil
- *Correspondence: Flávia Caló Aquino Xavier
| | - Jamerson Carvalho Silva
- Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Salvador, BA, Brazil
| | - Camila Oliveira Rodini
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo, São Paulo, SP, Brazil
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Bastos YVP, Carlos R, Oliveira PTD, Pires BC, Cangussu MCT, Xavier FCA, Koga-Ito CY, Manieri PR, Souza AS, Júnior BC, Ramalho LMP, Cury PR, Santos JND. Florid cemento-osseous dysplasia-related osteonecrosis: A series of cases. Ann Diagn Pathol 2022; 60:152009. [PMID: 35868115 DOI: 10.1016/j.anndiagpath.2022.152009] [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: 04/28/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 11/17/2022]
Abstract
OBJECTIVE The aim of this study was to assess the clinicopathological features of florid cemento-osseous dysplasia (FCOD)-related osteonecrosis highlighting their histopathological aspects and bone structure. METHODS Twenty-two FCOD-related osteonecrosis cases were evaluated retrospectively. Osteonecrosis, osteomyelitis, bacterial colonization, bone resorption, reactive bone, osteon-like structure, lamellar bone, and basophilic lines were analyzed. Specific staining and fluorescence and polarized light microscopy analyses were also performed. RESULTS The mandible was more affected by FCOD-related osteonecrosis. There was a predominance of African-Brazilian women in the fifth and seventh decades of life. Osteomyelitis was present in 82 % of cases whereas bone resorption and bacterial colonization were present in 100 % of FCOD-related osteonecrosis cases. Thick basophilic lines were seen in all cases (100 %). Actinomycosis and osteoclasts were not often. CONCLUSIONS This study showed female adult preference, mandibular location, and some findings such as osteomyelitis, bone resorption, and bacterial colonization were histopathological features more frequent in FCOD-related osteonecrosis. In the absence of a close clinical and radiographic correlation, the morphology of the necrotized bone similar to cementum could help to recognize FCOD.
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Affiliation(s)
- Yann Victor Paiva Bastos
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Roman Carlos
- Department of Pathology, Hospital Herrera-Llerandi, Guatemala City, Guatemala
| | - Paulo Tambasco De Oliveira
- Cell Culture Laboratory, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil
| | | | | | - Flávia Caló Aquino Xavier
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil; Laboratory of Oral and Maxillofacial Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Cristiane Yumi Koga-Ito
- Institute of Science and Technology, São Paulo State University/UNESP, São José dos Campos, São Paulo, Brazil
| | - Patricia Rubia Manieri
- Laboratory of Oral and Maxillofacial Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - André Sampaio Souza
- Department of Oral and Maxillofacial Surgery, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Braúlio Carneiro Júnior
- Department of Oral and Maxillofacial Surgery, Southwest University of Bahia, Salvador, Bahia, Brazil
| | | | - Patrícia Ramos Cury
- Department of Periodontology, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Jean Nunes Dos Santos
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil; Department of Oral and Maxillofacial Surgery, Federal University of Bahia, Salvador, Bahia, Brazil.
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Almeida Junior VRD, Leite EGS, Almeida MV, Castro JFLD, Freitas RDA, Xavier FCA, Figueiredo AL, Santos JN, Henriques ÁCG. Differential protein expression of osteoclastogenic factors in odontogenic cysts and tumors. Braz Oral Res 2022; 36:e072. [PMID: 36507759 DOI: 10.1590/1807-3107bor-2022.vol36.0072] [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] [Received: 03/13/2021] [Accepted: 09/09/2021] [Indexed: 12/15/2022] Open
Abstract
The osteolytic activity of odontogenic cysts and tumors is directly associated with their growth and aggressiveness. The influence of proteins expressed by epithelial and mesenchymal cells on this biological event differs between indolent cystic lesions, aggressive cystic lesions, and odontogenic tumors. The objective of this study was to compare the immunohistochemical expression of factors that stimulate (receptor activator of nuclear factor kappa-Β ligand - RANKL, cathepsin K - CatK and matrix metallopeptidase 8 - MMP-8) and inhibit (osteoprotegerin - OPG) osteoclastogenesis between dentigerous cyst (DC), glandular odontogenic cyst (GOC), odontogenic keratocyst (OKC), and ameloblastoma (AB). Paraffin-embedded sections of nine DCs, nine GOCs, 20 OKCs, 21 ABs, and four dental follicles (DFs) were subjected to immunohistochemistry. Immunoreactivity was analyzed semiquantitatively and quantitatively in epithelium and connective tissue, respectively. The proteins were immunoexpressed in epithelial and mesenchymal cells of all lesions studied. The expression of RANKL and CatK was higher in OKC, AB, and GOC (p<0.005). Higher expression of OPG was found in DF and DC compared to the other markers (p<0.005). MMP-8 expression was high in GOC and OKC. This study demonstrated the differential expression of factors that inhibit and stimulate bone resorption during the development of DC, GOC, OKC, and AB. Higher expression of RANKL and CatK was observed in more aggressive lesions. OPG appears to be one of the molecules responsible for the slower growth of DC.
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Affiliation(s)
| | - Eder Gerardo Santos Leite
- Universidade Federal da Bahia - UFBA, Graduate Program in Dentistry and Health, Salvador, BA, Brazil
| | - Marcus Vinicius Almeida
- Universidade Federal da Bahia - UFBA, Graduate Program in Dentistry and Health, Salvador, BA, Brazil
| | - Jurema Freire Lisboa de Castro
- Universidade Federal do Pernambuco - UFPE, Department of Dentistry, Graduate Program in Oral Pathology, Recife, PE, Brazil
| | - Roseana de Almeida Freitas
- Universidade Federal do Rio Grande do Norte - UFRN, Department of Dentistry, Graduate Program in Oral Pathology, Natal, RN, Brazil
| | - Flávia Caló Aquino Xavier
- Universidade Federal da Bahia - UFBA, Graduate Program in Dentistry and Health, Salvador, BA, Brazil
| | - Andreia Leal Figueiredo
- Universidade Federal da Bahia - UFBA, Graduate Program in Dentistry and Health, Salvador, BA, Brazil
| | - Jean Nunes Santos
- Universidade Federal da Bahia - UFBA, Graduate Program in Dentistry and Health, Salvador, BA, Brazil
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Nascimento RB, Araujo NS, Silva JC, Xavier FCA. Oral manifestations of multisystemic inflammatory syndrome in children (MIS-C) and Kawasaki disease associated to COVID-19: A systematic review. Spec Care Dentist 2021; 42:266-280. [PMID: 34792813 PMCID: PMC8662078 DOI: 10.1111/scd.12669] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/09/2021] [Accepted: 10/06/2021] [Indexed: 12/17/2022]
Abstract
Aims Multisystemic inflammatory syndrome in children (MIS‐C) is a condition noted in some children asymptomatic but positive to Sars‐cov‐2 antibody and it presents clinical and laboratory changes similar to Kawasaki disease (KD). Oral changes have also been observed. This systematic review evaluated oral manifestations detected in children with MIS‐C and KD associated to COVID‐19. Methods and Results This work was registered at PROSPERO (#CRD42020225909), following PRISMA guidelines. A comprehensive research was conducted in MEDLINE, Web of Science, EMBASE, LILACS, Scopus, and Grey Literature through August 2021, based on original research evaluating children diagnosed with MIS‐C or KD related to COVID‐19. Two authors independently screened all retrieved references. Twenty five selected studies evaluated 624 children, mean age 8.78 years. The assessment of the risk of bias (ROB) showed that most of them presented low ROB. Oral manifestations were erythematous mucous membrane, oral ulcers lesions, dry, swollen and cracked lips, and strawberry tongue. Conclusion MIS‐C and KD share the same oral manifestations and their identification may lead to an early diagnosis.
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Affiliation(s)
- Rebeca Barros Nascimento
- Post-graduate Program in Dentistry and Health, School of Dentistry, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
| | - Nara Santos Araujo
- Post-graduate Program in Dentistry and Health, School of Dentistry, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
| | | | - Flávia Caló Aquino Xavier
- Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
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Rodrigues MFSD, Xavier FCA, Esteves CD, Nascimento RB, Nobile JS, Severino P, de Cicco R, Toporcov TN, Tajara EH, Nunes FD. Homeobox gene amplification and methylation in oral squamous cell carcinoma. Arch Oral Biol 2021; 129:105195. [PMID: 34126417 DOI: 10.1016/j.archoralbio.2021.105195] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/03/2021] [Accepted: 06/04/2021] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Investigate the DNA copy number and the methylation profile of the homeobox genes HOXA5, HOXA7, HOXA9, HOXB5, HOXB13, HOXC12, HOXC13, HOXD10, HOXD11, IRX4 and ZHX1, and correlate them with clinicopathological parameters and overall survival. MATERIAL AND METHODS DNA from OSCC samples and surgical margins were submitted to DNA amplification by qPCR and to DNA methylation analysis using a DNA Methylation PCR Array System. RESULTS HOXA5, HOXB5 and HOXD10 were amplified in surgical margins while HOXA9, HOXB13 and IRX4 were amplified in OSCC. HOXD10 demonstrated hypermethylation in half of the tumor while ZHX1 did not show hypermethylation. No correlation of DNA copy number or methylation with clinicopathological parameters or survival was observed. CONCLUSION HOXA9, HOXB13 and IRX4 genes appears to be regulated by amplification and HOXD10 by methylation in OSCC. Further studies are needed to determine the role of these events in OSCC development.
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Affiliation(s)
| | - Flávia Caló Aquino Xavier
- Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - Carina Duarte Esteves
- Department of Oral Pathology, School of Dentistry, University of São Paulo, São Paulo, Brazil
| | - Rebeca Barros Nascimento
- Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - Juliana Stephan Nobile
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove De Julho University (UNINOVE), São Paulo, SP, Brazil
| | - Patrícia Severino
- Center for Experimental Research, Albert Einstein Research and Education Institute, Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| | | | | | - Eloiza Helena Tajara
- Department of Molecular Biology, School of Medicine of São José do Rio Preto/FAMERP, São José do Rio Preto, SP, Brazil
| | - Fábio Daumas Nunes
- Department of Oral Pathology, School of Dentistry, University of São Paulo, São Paulo, Brazil.
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Melo-Muniz VRV, Nunes FD, Cangussu MCT, Cury PR, Xavier FCA, de Azevedo RA, Leitão ÁCGH, de Faro Valverde L, Carneiro Júnior B, Dos Santos JN. Central giant cell granuloma: A clinicopathological and immunohistochemical study of macrophages, blood vessels, lymphatic vessels and regulatory proteins. Ann Diagn Pathol 2020; 46:151526. [PMID: 32339965 DOI: 10.1016/j.anndiagpath.2020.151526] [Citation(s) in RCA: 4] [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: 03/27/2020] [Revised: 04/06/2020] [Accepted: 04/08/2020] [Indexed: 01/09/2023]
Abstract
OBJECTIVE This study seeks to investigate immunohistochemical parameters that could distinguish non-aggressive Central giant cell granuloma (CGCG) from aggressive CGCG, two groups of lesions which differ in their clinical and radiographic features and prognosis. MATERIAL AND METHODS 12 cases of non-aggressive CGCG and 11 cases of aggressive CGCG were investigated and associated the immunohistochemical expression of macrophages (CD68 and CD163), blood vessels (CD34 and CD105), lymphatic vessels (D2-40) and regulator proteins (p63 and Ki-67). Clinical and radiographic features were also studied. RESULTS Associations between all proteins in non-aggressive and aggressive CGCG were not significant (p > 0.05). With respect to non-aggressive CGCG, there were no significant correlations, while in aggressive CGCG there was a significant positive correlation between CD68 and CD163 (p = 0.031), between CD34 and D2-40 proteins (p = 0.04), whereas a significant negative correlation was observed between CD105 and CD68 (p = 0.040). However, regardless of aggressiveness of CGCG, there was a significant positive correlation between CD68 and CD163 (p = 0,04). Among the clinical and immunohistochemical aspects, only the symptomatology was a significant risk factor for the occurrence of aggressive CGCG (OR = 12.00/p = 0.016). CONCLUSION Macrophages and angiogenesis contribute to their maintenance and development of CGCG. In addition, immunohistochemistry used here was not able to differentiate their aggressiveness. However, symptomatology was proved to be a risk factor for the occurrence of aggressive CGCG. It is possible that clinical features, particularly symptomatology, represent the most appropriate parameter to attempt to distinguish GCCG.
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Affiliation(s)
- Vinicius Rio Verde Melo-Muniz
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Fábio Daumas Nunes
- Laboratory of Oral and Maxillofacial Pathology, School of Dentistry, University of São Paulo, São Paulo, São Paulo, Brazil
| | | | - Patrícia Ramos Cury
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Flávia Caló Aquino Xavier
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil; Laboratory of Oral and Maxillofacial Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Roberto Almeida de Azevedo
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Águida Cristina Gomes Henriques Leitão
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil; Laboratory of Oral and Maxillofacial Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | | | - Bráulio Carneiro Júnior
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Southwest University of Bahia, Jequié, Bahia, Brazil
| | - Jean Nunes Dos Santos
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil; Laboratory of Oral and Maxillofacial Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil.
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Dos Santos EA, Gonçalves Cerqueira PS, Fontes EK, De Oliveira Brandão T, Destro Rodrigues MF, Da Silva Paiva KB, Aquino Xavier FC. Dual Function of Caveolins in Oral Squamous Cell Carcinoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2018. [DOI: 10.1016/j.oooo.2018.02.703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Santos PRB, Coutinho-Camillo CM, Soares FA, Freitas VS, Vilas-Bôas DS, Xavier FCA, Rocha CAG, de Araújo IB, Dos Santos JN. MicroRNAs expression pattern related to mast cell activation and angiogenesis in paraffin-embedded salivary gland tumors. Pathol Res Pract 2017; 213:1470-1476. [PMID: 29108921 DOI: 10.1016/j.prp.2017.10.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 10/09/2017] [Accepted: 10/10/2017] [Indexed: 01/04/2023]
Abstract
The aim of this study was evaluate the expression profile of microRNAs related to mast cells activation and angiogenesis in salivary glands tumors. METHOD We have analyzed the expression of miR-9, miR-16, miR-17, miR-132, miR-195 and miR-221 by real-time RT-PCR, in 11 adenoid cystic carcinomas, 9 mucoepidermoid carcinomas and 11 pleomorphic adenomas. Immunohistochemical investigation was performed to detect mast cells tryptase and CD-34 for microvessels biomarkers. miR-16, miR-17, miR-132, miR-195 and miR-221 showed a decreased expression, whereas miR-9 showed an increased expression in most cases compared to normal tissues. However, in all tumors studied only miR-9 showed a statistical significant negative correlation with microvessel density (p=0.001). It was observed a higher density of mast cells in mucoepidermoid carcinomas (10.55 cells/mm2) when compared to adenoid cystic carcinomas (6.27 cells/mm2) and between mucoepidermoid carcinomas and pleomorphic adenomas (5.97células/mm2). miR-17, miR-132, miR-195 and miR-221 seem to play an important role as tumor suppressor in salivary gland tumors. In addition, the significant correlation between mast cell and microvessel density contributes to the growth and pathogenesis of these tumors and they may become strong therapeutic targets in the future.
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Affiliation(s)
- Poliana Ramos Braga Santos
- Postgraduate Program in Dentistry and Health, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | | | | | - Valéria Souza Freitas
- Department of Health, School of Dentistry, State Universitiy of Feira de Santana, Feira de Santana, Bahia, Brazil
| | - Deise Souza Vilas-Bôas
- Department of Bio-morphology, Institute of Health Sciences, Federal University of Bahia, UFBA, Salvador, Bahia, Brazil
| | - Flávia Caló Aquino Xavier
- Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Faculdade de Odontologia, Laboratório de Patologia Cirúrgica, Avenida Araújo Pinho, 62, Canela, Salvador, Bahia, 40110-150, Brazil
| | - Clarissa Araújo Gurgel Rocha
- Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Faculdade de Odontologia, Laboratório de Patologia Cirúrgica, Avenida Araújo Pinho, 62, Canela, Salvador, Bahia, 40110-150, Brazil
| | - Iguaracyra Barreto de Araújo
- Department of Pathology and Forensic Medicine, School of Medicine, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Jean Nunes Dos Santos
- Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Faculdade de Odontologia, Laboratório de Patologia Cirúrgica, Avenida Araújo Pinho, 62, Canela, Salvador, Bahia, 40110-150, Brazil.
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10
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Santos SCLT, Couto LA, Fonseca JM, Xavier FCA, Figueiredo ACL, Freitas VS, Freitas RA, Santos JN, Henriques ACG. Participation of osteoclastogenic factors in immunopathogenesis of human chronic periapical lesions. J Oral Pathol Med 2017; 46:846-852. [PMID: 28731540 DOI: 10.1111/jop.12618] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Chronic periapical lesions (CPLs) are common lesions of the oral cavity and are the result of caries, tooth fracture, iatrogenic causes, or factors causing contamination and pulp necrosis. Inflammatory cells participate in the expansion of CPLs by releasing factors that stimulate or inhibit osteolytic activity. The objective of this study was to investigate the participation of RANKL, TNF-α, cathepsin K, IL-33, and OPG in the development of radicular cysts (RCs) and periapical granulomas (PGs). METHODS Paraffin-embedded sections of 30 RCs and 22 PGs were submitted to immunohistochemistry. RESULTS Immunoexpression of the proteins studied was observed in the epithelium and capsule of RCs, as well as in connective tissue of PGs. The expression of the osteoclastogenic factors studied differed significantly in RCs and PGs (P < .001), with lower expression of OPG in RCs. In PGs, the lowest expression was observed for cathepsin K. Comparison of the 2 lesions showed a similar participation of RANKL and IL33, while a significant difference was observed for OPG (P < .001), TNF-α (P = .002), and cathepsin K (P = .016). No association of the expression of the proteins with lesions size was observed. CONCLUSIONS This study demonstrated the participation of RANKL, TNF-α, IL-33, cathepsin K, and OPG in the development of RCs and PGs, with emphasis on the highest immunoreactivity of cathepsin in RCs and TNF-α and OPG in PGs. OPG possibly determines the slower growth of PGs compared to RCs.
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Affiliation(s)
- S C L T Santos
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - L A Couto
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - J M Fonseca
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - F C A Xavier
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - A C L Figueiredo
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - V S Freitas
- Postgraduation Program in Public Health, State University of Feira de Santana, Feira de Santana, BA, Brazil
| | - R A Freitas
- Postgraduation Program in Oral Pathology, Department of Dentistry, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - J N Santos
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
| | - A C G Henriques
- Postgraduation Program in Dentistry and Health, Federal University of Bahia, Salvador, BA, Brazil
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Rodrigues MFSD, Esteves CM, Xavier FCA, Nunes FD. Methylation status of homeobox genes in common human cancers. Genomics 2016; 108:185-193. [PMID: 27826049 DOI: 10.1016/j.ygeno.2016.11.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 09/27/2016] [Accepted: 11/01/2016] [Indexed: 02/06/2023]
Abstract
Approximately 300 homeobox loci were identified in the euchromatic regions of the human genome, of which 235 are probable functional genes and 65 are likely pseudogenes. Many of these genes play important roles in embryonic development and cell differentiation. Dysregulation of homeobox gene expression is a frequent occurrence in cancer. Accumulating evidence suggests that as genetics disorders, epigenetic modifications alter the expression of oncogenes and tumor suppressor genes driving tumorigenesis and perhaps play a more central role in the evolution and progression of this disease. Here, we described the current knowledge regarding homeobox gene DNA methylation in human cancer and describe its relevance in the diagnosis, therapeutic response and prognosis of different types of human cancers.
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Affiliation(s)
| | | | | | - Fabio Daumas Nunes
- Department of Oral Pathology, School of Dentistry, University of São Paulo, São Paulo, Brazil.
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Ferreira SV, Xavier FCA, Freitas MDCAD, Nunes FD, Gurgel CA, Cangussu MCT, Martins MD, Freitas VS, dos Santos JN. Involvement of mast cells and microvessels density in reactive lesions of oral cavity: A comparative immunohistochemical study. Pathol Res Pract 2016; 212:761-6. [DOI: 10.1016/j.prp.2016.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2016] [Revised: 04/27/2016] [Accepted: 05/17/2016] [Indexed: 01/12/2023]
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Sousa-Neto ES, Cangussu MCT, Gurgel CA, Guimarães VS, Ramos EAG, Xavier FCA, Cury PR, Carneiro Júnior B, Leonardi R, Dos Santos JN. Interaction of stromal and microvascular components in keratocystic odontogenic tumors. J Oral Pathol Med 2016; 45:557-64. [PMID: 26757279 DOI: 10.1111/jop.12400] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVE Little is known about the interaction of stromal components in odontogenic tumors. Thus, the aim of this study was to investigate mast cells (MCs), myofibroblasts, macrophages, and their possible association with angiogenesis and lymphangiogenesis in keratocystic odontogenic tumors (KCOTs). MATERIAL AND METHODS Thirty cases of KCOTs were included and analyzed by immunohistochemistry for mast cell tryptase, α-SMA, CD34, CD163, and D240. For comparative purpose, 15 radicular cysts (CRs) and 7 pericoronal follicles (PFs) were included. RESULTS There was an increase in MCs for RCs and this difference was significant when they were compared to KCOTS and PFs. A significant increase in the density of MFs was observed for KCOTs when compared to RCs and PFs (P = 0.00). No significant difference in CD163-positive macrophages (P = 0.084) and CD34-positive vessels (P = 0.244) densities was observed between KCOTs, RCs, and PFs, although KCOTs showed a higher density of all proteins. Significant difference in lymphatic vessel density was observed for KCOTs when compared to RCs and PFs (P = 0.00). Positive correlation was observed between mast cell tryptase and CD34 in KCOTs (P = 0.025). CONCLUSIONS A significant interaction between the MC population and CD34-positive vessels in KCOTs supported the hypothesis that MCs and blood vessels contribute to the stromal scaffold of KCOT.
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Affiliation(s)
- Ernesto Santos Sousa-Neto
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Maria Cristina Teixeira Cangussu
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil.,Department of Dental Public Health, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Clarissa Araújo Gurgel
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil.,Human Pathology Postgraduate Program, Oswaldo Cruz Foundation, Fiocruz, Salvador, Bahia, Brazil.,Laboratory of Pathology and Molecular Biology, Oswaldo Cruz Foundation, Fiocruz, Salvador, Bahia, Brazil
| | - Vanessa Sousa Guimarães
- Laboratory of Pathology and Molecular Biology, Oswaldo Cruz Foundation, Fiocruz, Salvador, Bahia, Brazil
| | | | - Flávia Caló Aquino Xavier
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil.,Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Patrícia Ramos Cury
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil.,Division of Periodontics, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Braúlio Carneiro Júnior
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil.,Department of Oral and Maxillofacial Surgery, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
| | - Rosalia Leonardi
- Department of Medical and Surgical Sciences, University of Catania, Catania, Italy
| | - Jean Nunes Dos Santos
- Dentistry and Health Postgraduate Program, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil.,Human Pathology Postgraduate Program, Oswaldo Cruz Foundation, Fiocruz, Salvador, Bahia, Brazil.,Laboratory of Oral Surgical Pathology, School of Dentistry, Federal University of Bahia, Salvador, Bahia, Brazil
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Porto LPA, dos Santos JN, Ramalho LMP, Figueiredo AL, Carneiro Júnior B, Gurgel CA, Paiva KBS, Xavier FCA. E-cadherin regulators are differentially expressed in the epithelium and stroma of keratocystic odontogenic tumors. J Oral Pathol Med 2015; 45:302-11. [PMID: 26525778 DOI: 10.1111/jop.12382] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND The epithelial-mesenchymal transition (EMT) is the process where cells lose their epithelial features and acquire properties of typical mesenchymal cells. The dissociation of tumor cells due to changes in cell-cell adhesion is one of the key principles of tumor invasion and EMT. Thus, the knowledge of the molecular features of EMT in keratocyst odontogenic tumor (KOT) can provide useful markers to aid in the diagnosis and prognosis and perhaps contribute to an alternative therapeutic approach as it shows an aggressive clinical behavior and high recurrence rates. This study aimed to evaluate the EMT in KOT by the immunoexpression of E-cadherin, N-cadherin, Snail, and Slug and comparing to radicular cysts and dental follicles. METHODS Thirty-two KOTs, 15 radicular cysts, and 08 dental follicles were used for immunohistochemistry, evaluating the extent, intensity, labeling pattern, cellular compartment in the epithelium and stroma, and the presence of inflammation. RESULTS E-cadherin was preserved in most cases of keratocystic odontogenic tumor. N-cadherin was increased in the tumor epithelium, a result that was positively correlated with the heterogeneous and nuclear immunoexpression of Slug in the epithelium; Slug also correlated with high Snail immunoexpression. N-cadherin was positively correlated with Slug in the stroma of keratocystic odontogenic tumors. CONCLUSIONS The high immunoexpression of Snail and nuclear Slug in keratocystic odontogenic tumors suggests these proteins as transcription factors without necessarily participating in 'cadherin switching'. However, the knowledge of their induction of the epithelial-mesenchymal transition in odontogenic tumors is still limited.
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Affiliation(s)
- Lia Pontes Arruda Porto
- Pos-graduate Program of Dentistry and Health, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - Jean Nunes dos Santos
- Surgical Pathology Laboratory, Department of Propaedeutics and Integrated Clinical Practicum, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - Luciana Maria Pedreira Ramalho
- Department of Propaedeutics and Integrated Clinical Practicum, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - Andreia Leal Figueiredo
- Department of Social and Pediatric Dentistry, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - Bráulio Carneiro Júnior
- Pos-graduate Program of Dentistry and Health, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - Clarissa Araújo Gurgel
- Department of Propaedeutics and Integrated Clinical Practicum, School of Dentistry, Federal University of Bahia, Salvador, Brazil
| | - Katiúcia Batista Silva Paiva
- Extracellular Matrix Biology and Cellular Interaction Laboratory, Department of Anatomy, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Flávia Caló Aquino Xavier
- Surgical Pathology Laboratory, Department of Propaedeutics and Integrated Clinical Practicum, School of Dentistry, Federal University of Bahia, Salvador, Brazil
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Xavier FCA, Destro MFDSS, Duarte CME, Nunes FD. Epigenetic repression of HOXB cluster in oral cancer cell lines. Arch Oral Biol 2014; 59:783-9. [DOI: 10.1016/j.archoralbio.2014.05.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2013] [Revised: 03/25/2014] [Accepted: 05/02/2014] [Indexed: 12/12/2022]
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Libório TN, Ferreira EN, Aquino Xavier FC, Carraro DM, Kowalski LP, Soares FA, Nunes FD. TGIF1 splicing variant 8 is overexpressed in oral squamous cell carcinoma and is related to pathologic and clinical behavior. Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 116:614-25. [DOI: 10.1016/j.oooo.2013.07.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 07/14/2013] [Accepted: 07/21/2013] [Indexed: 01/25/2023]
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Rodini CO, Xavier FCA, Paiva KBS, De Souza Setúbal Destro MF, Moyses RA, Michaluarte P, Carvalho MB, Fukuyama EE, Tajara EH, Okamoto OK, Nunes FD. Homeobox gene expression profile indicates HOXA5 as a candidate prognostic marker in oral squamous cell carcinoma. Int J Oncol 2011; 40:1180-8. [PMID: 22227861 PMCID: PMC3584618 DOI: 10.3892/ijo.2011.1321] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [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: 09/19/2011] [Accepted: 11/11/2011] [Indexed: 12/18/2022] Open
Abstract
The search for molecular markers to improve diagnosis, individualize treatment and predict behavior of tumors has been the focus of several studies. This study aimed to analyze homeobox gene expression profile in oral squamous cell carcinoma (OSCC) as well as to investigate whether some of these genes are relevant molecular markers of prognosis and/or tumor aggressiveness. Homeobox gene expression levels were assessed by microarrays and qRT-PCR in OSCC tissues and adjacent non-cancerous matched tissues (margin), as well as in OSCC cell lines. Analysis of microarray data revealed the expression of 147 homeobox genes, including one set of six at least 2-fold up-regulated, and another set of 34 at least 2-fold down-regulated homeobox genes in OSCC. After qRT-PCR assays, the three most up-regulated homeobox genes (HOXA5, HOXD10 and HOXD11) revealed higher and statistically significant expression levels in OSCC samples when compared to margins. Patients presenting lower expression of HOXA5 had poorer prognosis compared to those with higher expression (P=0.03). Additionally, the status of HOXA5, HOXD10 and HOXD11 expression levels in OSCC cell lines also showed a significant up-regulation when compared to normal oral keratinocytes. Results confirm the presence of three significantly upregulated (>4-fold) homeobox genes (HOXA5, HOXD10 and HOXD11) in OSCC that may play a significant role in the pathogenesis of these tumors. Moreover, since lower levels of HOXA5 predict poor prognosis, this gene may be a novel candidate for development of therapeutic strategies in OSCC.
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Affiliation(s)
- Camila Oliveira Rodini
- Laboratory of Molecular Pathology, Department of Oral Pathology, School of Dentistry, University of São Paulo, Cidade Universitária, 05508-000 São Paulo, Brazil
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Matizonkas-Antonio LF, Libório TN, Aquino Xavier FC, Silva-Valenzuela MDG, Michaluarte-Júnior P, Nunes FD. Detection of TGIF1 homeobox gene in oral squamous cell carcinoma according to histologic grading. ACTA ACUST UNITED AC 2011; 111:218-24. [PMID: 21237437 DOI: 10.1016/j.tripleo.2010.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 09/23/2010] [Accepted: 10/01/2010] [Indexed: 01/31/2023]
Abstract
OBJECTIVE TGIF1 homeobox gene involvement in oral cancer has not yet been investigated. This study analyzed the expression of TGIF1 transcripts and protein in oral squamous cell carcinoma (OSCC). STUDY DESIGN Snap-frozen samples from 16 patients were taken from both OSCC and nontumoral adjacent epithelium (NT) for in situ hybridization (ISH). Forty-six paraffin-embedded samples of OSCC were submitted to immunohistochemistry (IHC). A descriptive analysis of the transcript signal detection was accomplished, and TGIF1 immunoexpression was carried out considering protein levels, localization, and cellular differentiation. RESULTS ISH reactions showed TGIF1 transcripts with a signal that was frequently intense in NT, and generally weak in OSCC, and that had stronger transcript signal in well-differentiated areas of OSCC when compared with poorly differentiated ones. IHC reactions had poorly differentiated cases associated with TGIF1 protein expression in both the nucleus and cytoplasm (P = .05, Fisher test). CONCLUSIONS TGIF1 gain or loss of function might possibly play a role in oral cancer cell differentiation.
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Xavier FCA, Rodini CO, Paiva KBS, Destro MFSS, Severino P, Moyses RA, Tajara EH, Nunes FD. ORAOV1 is amplified in oral squamous cell carcinoma. J Oral Pathol Med 2011; 41:54-60. [PMID: 21623924 DOI: 10.1111/j.1600-0714.2011.01053.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Oral cancer overexpressed 1 (ORAOV1) was found as a candidate oncogene in the 11q13 chromosomal region, based on its amplification and overexpression in oral cancer cell lines. Because gene amplification often leads to increased levels of gene expression, we aimed to verify the relationship between ORAOV1 gene status and mRNA expression primarily in oral squamous cell carcinoma (OSCC) by quantitative assay, correlating with clinical and pathological characteristics in patients. METHODS Levels of ORAOV1 amplification and expression were evaluated by qPCR and RT-qPCR in OSCC cell lines and in tumor and non-tumoral surgical margins from 33 patients with OSCC. All subjects were smokers and habitual alcohol drinkers, mostly men above 40 years of age and with a single primary tumor. RESULTS ORAOV1 exhibited increased gene expression levels as well as higher copy number in three OSCC cell lines with 11q13 amplified chromosomal region when compared with the OSCC cell line without the amplification (one-way ANOVA, P < 0.05). Weak correlation between ORAOV1 mRNA levels and DNA copy number was seen in tumor samples (Spearman, P = 0.07). Although ORAOV1 was amplified in tumor (Wilcoxon, P < 0.01), high levels of transcripts in margin did not reveal differences in comparison with tumor (Wilcoxon, P = 0.85). Aggressiveness and survival rate did not demonstrate statistical difference for both events in OSCC. CONCLUSION The overexpression of ORAOV1 in non-tumoral margin samples can occur in the absence of amplification. The weak correlation between ORAOV1 amplification and expression in OSSC suggests that ORAOV1 expression can be regulated by mechanisms other than gene amplification.
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Affiliation(s)
- Flávia Caló Aquino Xavier
- Departmento de Patologia Bucal, Faculdade de Odontologia, Universidade de São Paulo, São Paulo, Brazil
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Rodrigues-Lisoni FC, Peitl P, Vidotto A, Polachini GM, Maniglia JV, Carmona-Raphe J, Cunha BR, Henrique T, Souza CF, Teixeira RAP, Fukuyama EE, Michaluart P, de Carvalho MB, Oliani SM, Tajara EH, Cury PM, de Carvalho MB, Dias-Neto E, Figueiredo DLA, Fukuyama EE, Góis-Filho JF, Leopoldino AM, Mamede RCM, Michaluart-Junior P, Moyses RA, Nóbrega FG, Nóbrega MP, Nunes FD, Ojopi EFB, Serafini LN, Severino P, Silva AMA, Silva WA, Silveira NJF, Souza SCOM, Tajara EH, Wünsch-Filho V, Amar A, Bandeira CM, Braconi MA, Brandão LG, Brandão RM, Canto AL, Cerione M, Cicco R, Chagas MJ, Chedid H, Costa A, Cunha BR, Curioni OA, Fortes CS, Franzi SA, Frizzera APZ, Gazito D, Guimarães PEM, Kaneto CM, López RVM, Macarenco R, Magalhães MR, Meneses C, Mercante AMC, Pinheiro DG, Polachini GM, Rapoport A, Rodini CO, Rodrigues-Lisoni FC, Rodrigues RV, Rossi L, Santos ARD, Santos M, Settani F, Silva FAM, Silva IT, Souza TB, Stabenow E, Takamori JT, Valentim PJ, Vidotto A, Xavier FCA, Yamagushi F, Cominato ML, Correa PMS, Mendes GS, Paiva R, Ramos O, Silva C, Silva MJ, Tarlá MVC. Genomics and proteomics approaches to the study of cancer-stroma interactions. BMC Med Genomics 2010; 3:14. [PMID: 20441585 PMCID: PMC2881110 DOI: 10.1186/1755-8794-3-14] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [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: 06/26/2009] [Accepted: 05/04/2010] [Indexed: 12/18/2022] Open
Abstract
Background The development and progression of cancer depend on its genetic characteristics as well as on the interactions with its microenvironment. Understanding these interactions may contribute to diagnostic and prognostic evaluations and to the development of new cancer therapies. Aiming to investigate potential mechanisms by which the tumor microenvironment might contribute to a cancer phenotype, we evaluated soluble paracrine factors produced by stromal and neoplastic cells which may influence proliferation and gene and protein expression. Methods The study was carried out on the epithelial cancer cell line (Hep-2) and fibroblasts isolated from a primary oral cancer. We combined a conditioned-medium technique with subtraction hybridization approach, quantitative PCR and proteomics, in order to evaluate gene and protein expression influenced by soluble paracrine factors produced by stromal and neoplastic cells. Results We observed that conditioned medium from fibroblast cultures (FCM) inhibited proliferation and induced apoptosis in Hep-2 cells. In neoplastic cells, 41 genes and 5 proteins exhibited changes in expression levels in response to FCM and, in fibroblasts, 17 genes and 2 proteins showed down-regulation in response to conditioned medium from Hep-2 cells (HCM). Nine genes were selected and the expression results of 6 down-regulated genes (ARID4A, CALR, GNB2L1, RNF10, SQSTM1, USP9X) were validated by real time PCR. Conclusions A significant and common denominator in the results was the potential induction of signaling changes associated with immune or inflammatory response in the absence of a specific protein.
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Xavier FCA, Takiya CM, Reis SRA, Ramalho LMP. p63 Immunoexpression in lip carcinogenesis. J Mol Histol 2009; 40:131-7. [DOI: 10.1007/s10735-009-9223-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2009] [Accepted: 05/29/2009] [Indexed: 11/25/2022]
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de Freitas MDCA, Ramalho LMP, Xavier FCA, Moreira ALG, Reis SRA. p53 and MDM2 protein expression in actinic cheilitis. J Appl Oral Sci 2009; 16:414-9. [PMID: 19082401 PMCID: PMC4327713 DOI: 10.1590/s1678-77572008000600011] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [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: 06/11/2007] [Accepted: 04/17/2008] [Indexed: 11/22/2022] Open
Abstract
Actinic cheilitis is a potentially malignant lip lesion caused by excessive and prolonged exposure to ultraviolet radiation, which can lead to histomorphological alterations indicative of abnormal cell differentiation. In this pathology, varying degrees of epithelial dysplasia may be found. There are few published studies regarding the p53 and MDM2 proteins in actinic cheilitis. Fifty-eight cases diagnosed with actinic cheilitis were histologically evaluated using Banóczy and Csiba (1976) parameters, and were subjected to immunohistochemical analysis using the streptavidin-biotin method in order to assess p53 and MDM2 protein expression. All studied cases expressed p53 proteins in basal and suprabasal layers. In the basal layer, the nuclei testing positive for p53 were stained intensely, while in the suprabasal layer, cells with slightly stained nuclei were predominant. All cases also tested positive for the MDM2 protein, but with varying degrees of nuclear expression and a predominance of slightly stained cells. A statistically significant correlation between the percentage of p53 and MDM2-positive cells was established, regardless of the degree of epithelial dysplasia. The expression of p53 and MDM2 proteins in actinic cheilitis can be an important indicator in lip carcinogenesis, regardless of the degree of epithelial dysplasia.
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Xavier FCA, Rodini CO, Ramalho LMP, Mantesso A, Nunes FD. WNT-5A, but not matrix metalloproteinase 3 or beta-catenin protein, expression is related to early stages of lip carcinogenesis. J Oral Pathol Med 2009; 38:708-15. [PMID: 19473452 DOI: 10.1111/j.1600-0714.2009.00756.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Oncogenic Wnt/beta-catenin signaling occurs in numerous types of cancers, but little is known about the role of the Wnt protein family member, WNT-5A, in lip carcinogenesis. The aim of this study was to investigate WNT-5A, beta-catenin, and matrix metalloproteinase (MMP)-3 protein expression in actinic cheilitis (AC), and lip squamous cell carcinoma (LSCC). METHODS Twenty-one cases of AC, and fifty-one cases of LSCC were analyzed, with normal lip mucosa used as a control. Qualitative and semi-quantitative analyses of WNT-5A, beta-catenin, and MMP-3 immunostaining pattern and cellular distribution were performed. RESULTS WNT-5A was observed in more than 50% of the cells, scattered in all layers of AC, in contrast to the absence of immunostaining in normal lip mucosa. AC presented a higher level of WNT-5A expression than LSCC (P = 0.0289, Fisher test), while MMP-3 immunoexpression was statistically more significant in LSCC than in AC (P = 0.0285, Fisher test). Immunolabeling of beta-catenin protein was differentially distributed between samples; the majority of AC cases (61.90%) demonstrated a membranous-cytoplasmic pattern, while a considerable number of LSCC cases (29.41%) revealed a cytoplasmic pattern, instead of the usual membranous pattern. CONCLUSIONS The present results suggest that WNT-5A may be an important marker during initial events of AC malignant transformation, in which non-canonical and canonical Wnt/beta-catenin signaling pathways could be involved. Additionally, WNT-5A might recruit other events in LSCC, such as MMP-3 protein synthesis, as its presence is increased in established malignant processes without beta-catenin dependency.
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Xavier FCA, Rodini CO, Ramalho LMP, Sarmento VA, Nunes FD, de Sousa SCOM. Clear cell odontogenic carcinoma: case report with immunohistochemical findings adding support to the challenging diagnosis. ACTA ACUST UNITED AC 2008; 106:403-10. [PMID: 18602308 DOI: 10.1016/j.tripleo.2008.03.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [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: 12/19/2007] [Revised: 02/08/2008] [Accepted: 03/10/2008] [Indexed: 11/19/2022]
Abstract
Clear cell odontogenic carcinoma (CCOC) is a rare odontogenic tumor associated with aggressive clinical behavior, metastasis, and low survival. We report a case of CCOC affecting the mandible of a 39-year-old man. The tumor presented a biphasic pattern composed of clear cell nests intermingled with eosinophilic cells and separated by collagenous stroma. Immunoreactivity to cytokeratin (CK), specifically AE1/AE3 and CK 8, 14, 18, and 19 was found, as well as to epithelial membrane antigen (EMA). The tumor cells were negative for S100 protein, CK 13, vimentin, smooth muscle actin, laminin and type IV collagen. Low labeling indices for the proliferation markers Ki-67 and proliferating cell nuclear antigen and to p53 protein might predict a favorable prognosis for the lesion. A surgical resection was performed, followed by adjuvant radiotherapy. A 2-year follow-up has shown no signs of recurrence. The significance of histochemical and immunohistochemical resources in the correct diagnosis of CCOC is analyzed.
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