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Matos LL, Menderico Junior GM, Theodoro TR, Pasini FS, Ishikawa MDM, Ribeiro AAB, de Mello ES, Pinhal MADS, Moyses RA, Kulcsar MAV, Dedivitis RA, Cernea CR, Kowalski LP. Cancer-associated fibroblast regulation by microRNAs promotes invasion of oral squamous cell carcinoma. Oral Oncol 2020; 110:104909. [PMID: 32702628 DOI: 10.1016/j.oraloncology.2020.104909] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 06/11/2020] [Accepted: 07/09/2020] [Indexed: 11/17/2022]
Abstract
The objective of the present study was to evaluate the role of microRNA-mediated remodeling of the extracellular matrix in the process of tumor invasion of oral squamous cell carcinoma and to evaluate its relationship with the prognosis of these patients. This was a retrospective study on material from the paraffin blocks of patients operated on for oral squamous cell carcinoma, in addition to a group of healthy oral mucosa samples of paired patients. miR-1-3p, miR-133-3p, and miR-21-5p were differentially expressed between the superficial and deep tumor groups. miR-21-5p was the one with the greatest accuracy in the differentiation between superficial and deep tumors. By immunohistochemistry, the group of deep tumors showed greater immunoreactivity to matrix metalloproteinases 2 and 9 and laminin α in tumor-associated fibroblasts, with consequent degradation of the basal membrane, measured by greater loss of continuity of type IV collagen. This process was also associated with lower and higher expression of miR-1-3p and miR-21-5p, respectively. There was also a trend toward better overall and disease-free survival rates in patients with higher miR-133a-3p. The present study showed the interaction between microRNAs and extracellular matrix remodeling in oral squamous cell carcinoma.
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Affiliation(s)
- Leandro Luongo Matos
- Head and Neck Surgery Department, Instituto do Câncer do Estado de São Paulo (ICESP), Laboratório de Investigação Médica 28 (LIM28), University of Sao Paulo Medical School, Sao Paulo, Brazil.
| | | | | | - Fatima Solange Pasini
- Centro de Investigação Translacional em Oncologia (CTO), Instituto do Cancer do Estado de Sao Paulo (ICESP), Hospital das Clinicas da Faculdade de Medicina da Universidade de Sao Paulo (HCFMUSP), Sao Paulo, Brazil.
| | | | | | - Evandro Sobroza de Mello
- Pathology Department, Instituto do Câncer do Estado de São Paulo (ICESP), Laboratório de Investigação Médica 14 (LIM14), University of Sao Paulo Medical School, Sao Paulo, Brazil.
| | | | - Raquel Ajub Moyses
- Head and Neck Surgery Department, Laboratório de Investigação Médica 28 (LIM28), University of Sao Paulo Medical School, Sao Paulo, Brazil.
| | - Marco Aurelio Vamondes Kulcsar
- Head and Neck Surgery Department, Instituto do Câncer do Estado de São Paulo (ICESP), University of Sao Paulo Medical School, Sao Paulo, Brazil.
| | | | - Claudio Roberto Cernea
- Head and Neck Surgery Department, University of Sao Paulo Medical School, Sao Paulo, Brazil.
| | - Luiz Paulo Kowalski
- Head and Neck Surgery Department, University of Sao Paulo Medical School, Sao Paulo, Brazil; Study Developed at Head and Neck Surgery Discipline, Surgery Department, University of Sao Paulo Medical School, Sao Paulo, SP, Brazil.
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