Maspin gene expression is a significant prognostic factor in resected non-small cell lung cancer (NSCLC). Maspin in NSCLC.
Maspin is a member of the serpin (serine protease inhibitor) superfamily, and some experimental studies revealed a potential tumor suppressor activity of maspin. To reveal clinical significance of maspin status in non-small cell lung cancer (NSCLC), we quantitatively evaluated maspin gene expression in lung primary tumors cut from a total of 55 resected NSCLC patients. Maspin expression in squamous cell carcinoma (Sq) was significantly higher than that in adenocarcinoma (Ad, p=0.011). Five-year overall survival rates of maspin-high and maspin-low patients were 67.7 and 41.4%, respectively, demonstrating a significant favorable prognosis of maspin-high patients (log-rank, p=0.042). A multivariate analysis confirmed that high maspin expression was an independent and significant factor to predict a favorable overall survival (p=0.031). These results suggested that maspin expression was significantly increased in Sq than in Ad, and that increased maspin expression was a significant factor to predict a favorable prognosis in resected NSCLC.
Katakura
Hiromichi
H
Department of Thoracic Surgery, Faculty of Medicine, Kyoto University, Kyoto 606-8507, Japan.
Takenaka
Kazumasa
K
Nakagawa
Masatsugu
M
Sonobe
Makoto
M
Adachi
Masashi
M
Ito
Shinya
S
Wada
Hiromi
H
Tanaka
Fumihiro
F
D000368:Aged; D000704:Analysis of Variance; D002289:Carcinoma, Non-Small-Cell Lung / Q000235:genetics*; D002294:Carcinoma, Squamous Cell / Q000378:metabolism; D016009:Chi-Square Distribution; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D016147:Genes, Tumor Suppressor; D006801:Humans; D008175:Lung Neoplasms / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D016016:Proportional Hazards Models; D020133:Reverse Transcriptase Polymerase Chain Reaction; D015843:Serpins / Q000235:genetics*; D015996:Survival Rate
C085344:SERPIN-B5; D015843:Serpins