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https://observatorio.fm.usp.br/handle/OPI/44283
Título: | Tissue expression of MMP-9, TIMP-1, RECK, and miR338-3p in prostate gland: can it predict cancer? |
Autor(es): | MORAES, Rodolfo Pacheco de; PIMENTA, Ruan; MORI, Fernando Noboru Cabral; SANTOS, Gabriel Arantes dos; VIANA, Nayara Izabel; GUIMARAES, Vanessa Ribeiro; CAMARGO, Juliana Alves de; MOREIRA-LEITE', Katia Ramos; SROUGI, Miguel; NAHAS, William Carlos; REIS, Sabrina T. |
Parte de: | MOLECULAR BIOLOGY RESEARCH COMMUNICATIONS, v.10, n.4, p.149-156, 2021 |
Resumo: | Prostate cancer is the most frequent malignancy affecting men worldwide. Due to the low sensitivity and specificity of the prostate-specific antigen test and the digital rectal exam as screening modalities, several alternatives are being studied. This study aimed to evaluate the application of MMP-9 and its regulators (TIMP-1, RECK, and miR-338-3p) as diagnostic and prognostic indicators of prostate cancer. A total of 134 randomly selected patients under investigation for prostate cancer submitted to a transrectal ultrasound-guided prostate biopsy were enrolled in the study; of these, 61 were positive for the disease (cases), and 73 were negative (control group). The tissue samples were further analyzed by gene and miR-338-3p expression analysis using qRT-PCR (one randomly selected fragment of each patient). Approximately 58% of the patients with prostate cancer presented MMP9 upregulation, while 73%, 65%, and 69% downregulated IMP-1, RECK, and miR-338-3p, respectively. MiR-338-3p was expressed at lower levels in patients with PSA concentrations exceeding 20 ng/mL (p=0.045) and abnormal DRE (p=0.006), while the RECK was more expressed in patients with abnormal DRE (p=0.01). We found that most patients with prostate cancer overexpressed MMP-9; on the other hand, most of them underexpressed TIMP-1, RECK, and miR-338-3p. MiR-338-3p presented as a possible predictor of poor prognosis. Further studies are warranted to evaluate these biomarkers as prognosis factors better. |
Aparece nas coleções: | Artigos e Materiais de Revistas Científicas - FM/MCG Artigos e Materiais de Revistas Científicas - HC/ICHC Artigos e Materiais de Revistas Científicas - LIM/09 Artigos e Materiais de Revistas Científicas - LIM/55 Artigos e Materiais de Revistas Científicas - ODS/03 |
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