The correlation between TTF-1 immunoreactivity and the occurrence of lymph node metastases in patients with lung cancer
Küçük Resim Yok
Tarih
2006
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Sage Publications Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Aims and background: Thyroid transcription factor (TTF-1) is a tissue-specific transcription factor expressed in the epithelial cells of thyroid and lung. The aim of this study was to evaluate the relationship between the expression of TTF-1 and clinicopathological parameters in pulmonary adenocarcinoma and adenosquamous carcinoma. Methods: Resection material of pneumonectomies and lobectomles of 39 patients was retrospectively examined. Twenty-eight patients were diagnosed with adenocarcinoma and 11 with adenosquamous carcinoma. Tumors were classified into 3 groups: a strongly positive group (++) with double dagger 50% tumor cells positive for TTF-1; a weakly positive group (+) with 1-49% positive tumor cells; and a negative group (-) with less than 1% or no positive tumor cells. Analysis was performed with Kaplan-Meier estimates and log-rank tests. Results: Staining for TTF-1 was negative in 10 cases. There was focal staining in 9 cases, while there was diffuse staining in 20 (51%) cases out of 39, and 15 (75%) of these were adenocarcinomas. There was a statistically significant association between TTF-1 and lymph node metastases (P = 0.029). No relationship was found between TTF-1 positivity and disease-free and overall survival. Conclusions: TTF-1 expression may be a predictor of lymph node metastases. Additional work in a larger group of patients is needed to better assess the utility of this marker.
Açıklama
Anahtar Kelimeler
Adenocarcinoma, Adenosquamous Carcinoma, Lung, Prognosis, TTF-1, Transcription Factor-I, Enhancer-Binding Protein, Cell Carcinomas, Gene, Expression
Kaynak
Tumori Journal
WoS Q Değeri
N/A
Scopus Q Değeri
Q3
Cilt
92
Sayı
4
