| Autor: |
Seyhan Ekrem, Altın Sedat, Çetinkaya Erdogan, Sökücü Sinem, Abalı Hülya, Buyukpinarbasili Nur, Fener Neslihan |
| Jazyk: |
angličtina |
| Rok vydání: |
2010 |
| Předmět: |
|
| Zdroj: |
Multidisciplinary Respiratory Medicine, Vol 5, Iss 5, Pp 305-311 (2010) |
| Druh dokumentu: |
article |
| ISSN: |
2049-6958 |
| DOI: |
10.1186/2049-6958-5-5-305 |
| Popis: |
Abstract Background and aim Increased expression of the epidermal growth factor receptor (EGFR) in non-small cell lung cancer (NSCLC), supporting the tumor growth by a possible endocrine mechanism, affects patient survival negatively. We designed a study to test EGFR expression by immunohistochemistry (IHC) in resected stage I-II NSCLC and to correlate its overexpression with survival. Methods EGFR expression was evaluated in 98 consecutive NSCLC patients after complete resection (53 squamous cell carcinomas, 40 adenocarcinomas, 5 large cell carcinomas: stage I, 57 (58%) and stage II, 41 (42%). IHC was used to examine the expression of EGFR in resected lung tumor samples obtained from these patients, who had no pre- or post-operative chemotherapy or radiotherapy. Univariate and multivariate analyses were performed for factors influencing patient survival. Results EGFR was expressed in 51 (52%) of 98 NSCLC samples. More squamous tumors (61%) were EGFR-positive than adenocarcinomas (38%) (p = 0.038). There was a statistically significant correlation between EGFR expression and stage (p = 0.04). No difference was found between EGFR positive and negative tumors in the 5-year overall survival (57% vs. 73%, p = 0.13). Conclusion The level of EGFR expression in tumors was not a successful predictor of survival in resected NSCLC. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
