Clinical significance of serum transforming growth factor-β1 in lung cancer

Autor: Yu-Lei Hou, Yong-Chang Wu, Cheng-Hua Li, Cheng-Jun Xue, Yan-Feng Wu, Zi-He Dong, Hui Chen, Hai-Xia Luo
Rok vydání: 2013
Předmět:
Zdroj: Cancer epidemiology. 37(5)
ISSN: 1877-783X
Popis: Background : Transforming growth factor-β1 (TGF-β1) plays a critical role in human cancer development. Present study aimed to explore the clinical significance of serum TGF-β1 levels in patients with lung cancer and analyze the relationship between TGF-β1 and existing tumor markers for lung cancer. Methods : Serum was collected from 118 patients with lung cancer and 40 healthy volunteers. Serum TGF-β1 levels were measured by enzyme-linked immunosorbent assay (ELISA), and the association with various clinical characteristics was analyzed. The diagnostic value of TGF-β1 was assessed alone and in combination with existing tumor markers for lung cancer. Results : Serum TGF-β1 levels were significantly higher in patients with lung cancer compared to healthy volunteers [0.6×10 5 (0.4×10 5 , 0.9×10 5 )pg/ml vs 0.5×10 5 (0.3×10 5 , 0.7×10 5 )pg/ml, P =0.040]. Although there was a positive correlation between serum TGF-β1 levels and advanced stages, the significant difference was not found between early stages and advanced stages ( P =0.116). The ability of serum TGF-β1 to discriminate lung cancer at a cutoff value of 79,168pg/ml exhibited sensitivity of 30.6% and specificity of 97.5%. Serum TGF-β1 levels were correlated to cytokeratin fragment 21-1 (CYFRA21-1; R =0.308, P =0.020) and neuron-specific enolase (NSE; R =0.558, P =0.003). The diagnostic accuracy rates for the existing lung-tumor markers, as SCC, CYFRA21-1, and NSE, were increased from 20.0%, 34.6%, and 45.9% to 48.9%, 51.7%, and 54.5%, respectively by the inclusion of serum TGF-β1 levels. Conclusion : Quantification of serum TGF-β1 levels by ELISA may provide a novel complementary tool for the clinical diagnosis of lung cancer.
Databáze: OpenAIRE