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Ruibal Á, Aguiar P, Del Río MC, Nuñez MI, Pubul V, Herranz M. Cell membrane CD44v6 levels in squamous cell carcinoma of the lung: association with high cellular proliferation and high concentrations of EGFR and CD44v5. Int J Mol Sci 2015; 16:4372-8. [PMID: 25809603 PMCID: PMC4394425 DOI: 10.3390/ijms16034372] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 02/02/2015] [Accepted: 02/03/2015] [Indexed: 01/12/2023] Open
Abstract
Membranous CD44v6 levels in tumors and surrounding samples obtained from 94 patients with squamous cell lung carcinomas were studied and compared to clinical stage, cellular proliferation, membranous CD44v5 levels, epidermal growth factor receptor EGFR and cytoplasmatic concentrations of CYFRA 21.1. CD44v6 positive values were observed in 33/38 non-tumor samples and in 76/94 tumor samples, but there were not statistically significant differences between both subgroups. In CD44v6 positive tumor samples, CD44v6 was not associated with clinical stage, histological grade, ploidy and lymph node involvement, but significant association was found with high cellular proliferation. Likewise, CD44v6 positive tumors had significantly higher levels of EGFR and CD44v5. In patients with squamous cell lung carcinomas and clinical stage I, positive CD44v6 cases were associated with the same parameters. Furthermore, positive CD44v5 squamous tumors were associated significantly with histological grade III and lower levels of CYFRA21.1. Our findings support the value of CD44v6 as a possible indicator of poor outcome in patients with squamous lung carcinomas.
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Affiliation(s)
- Álvaro Ruibal
- Molecular Imaging Group, Faculty of Medicine, University of Santiago Compostela, R/de San Francisco, s/n., Santiago de Compostela 15782, Spain.
- Nuclear Medicine Department, University Hospital Santiago Compostela (CHUS), R/Choupana, s/n., Santiago de Compostela 15706, Spain.
- Fundación Tejerina, C/José Abascal, 40, Madrid 28003, Spain.
| | - Pablo Aguiar
- Molecular Imaging Group, Faculty of Medicine, University of Santiago Compostela, R/de San Francisco, s/n., Santiago de Compostela 15782, Spain.
- Nuclear Medicine Department, University Hospital Santiago Compostela (CHUS), R/Choupana, s/n., Santiago de Compostela 15706, Spain.
| | | | - Matilde Isabel Nuñez
- Nuclear Medicine Department, University Hospital Santiago Compostela (CHUS), R/Choupana, s/n., Santiago de Compostela 15706, Spain.
| | - Virginia Pubul
- Nuclear Medicine Department, University Hospital Santiago Compostela (CHUS), R/Choupana, s/n., Santiago de Compostela 15706, Spain.
| | - Michel Herranz
- Molecular Imaging Group, Faculty of Medicine, University of Santiago Compostela, R/de San Francisco, s/n., Santiago de Compostela 15782, Spain.
- Nuclear Medicine Department, University Hospital Santiago Compostela (CHUS), R/Choupana, s/n., Santiago de Compostela 15706, Spain.
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