1
|
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.
Collapse
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.
| |
Collapse
|