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| Rangel,M.P.; de Sá,V.K.; Martins,V.; Martins,J.R.M.; Parra,E.R.; Mendes,A.; Andrade,P.C.; Reis,R.M.; Longatto-Filho,A.; Oliveira,C.Z.; Takagaki,T.; Carraro,D.M.; Nader,H.B.; Capelozzi,V.L.. |
| Hyaluronan (HA) shows promise for detecting cancerous change in pleural effusion and urine. However, there is uncertainty about the localization of HA in tumor tissue and its relationship with different histological types and other components of the extracellular matrix, such as angiogenesis. We evaluated the association between HA and degree of malignancy through expression in lung tumor tissue and sputum. Tumoral tissue had significantly increased HA compared to normal tissue. Strong HA staining intensity associated with cancer cells was significant in squamous cell carcinoma compared to adenocarcinoma and large cell carcinoma. A significant direct association was found between tumors with a high percentage of HA and MVD (microvessel density) in tumoral... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hyaluronic acid; Sputum; Lung cancer; Immunohistochemistry; ELISA. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2015000600557 |
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| de Sá,V.K.; Carvalho,L.; Gomes,A.; Alarcão,A.; Silva,M.R.; Couceiro,P.; Sousa,V.; Soares,F.A.; Capelozzi,V.L.. |
| Among the most common features of highly invasive tumors, such as lung adenocarcinomas (AD) and squamous cell carcinomas (SqCC), is the massive degradation of the extracellular matrix. The remarkable qualitative and quantitative modifications of hyaluronidases (HAases), hyaluronan synthases (HAS), E-cadherin adhesion molecules, and the transforming growth factor β (TGF-β) may favor invasion, cellular motility, and proliferation. We examined HAase proteins (Hyal), HAS, E-cadherin, and TGF-β profiles in lung AD subtypes and SqCC obtained from smokers and non-smokers. Fifty-six patients, median age 64 years, who underwent lobectomy for AD (N = 31) and SqCC (N = 25) were included in the study. HAS-1, -2 and -3, and Hyal-1 and -3 were significantly more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lung cancer E-cadherin TGF-β HAS-1; HAS-2 and HAS-3 Hyal-1 and Hyal-3 Immunohistochemistry Prognosis and morphometry. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000100021 |
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| Rangel,M.P.; Antonangelo,L.; Acencio,M.M.P.; Faria,C.S.; de Sá,V.K.; Leão,P.S.; Farhat,C.; Fabro,A.T.; Longatto Filho,A.; Reis,R.M.; Takagaki,T.; Capelozzi,V.L.. |
| Cofilin-1 (CFL1), a small protein of 18 kDa, has been studied as a biomarker due to its involvement in tumor cell migration and invasion. Our aim was to evaluate CFL1 as an indicator of malignancy and aggressiveness in sputum samples. CFL1 was analyzed by ELISA immunoassay in the sputum of 73 lung cancer patients, 13 cancer-free patients, and 6 healthy volunteers. Statistical analyses included ANOVA, ROC curves, Spearman correlation, and logistic regression. Sputum CFL1 levels were increased in cancer patients compared to cancer-free patients and volunteers (P<0.05). High expression of sputum CFL1 was correlated to T4 stage (P=0.01) and N stage (P=0.03), tobacco history (P=0.01), and squamous cell carcinoma histologic type (P=0.04). The accuracy of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lung cancer; Cofilin-1; Sputum; Liquid-biopsy; Metastases; Biomarker. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000800603 |
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