title: [Correlation between expression of forkhead box M1 (FOXM1) and clinicopathological features and prognosis in patients with non-small cell lung cancer (NSCLC)].
abstract: OBJECTIVE
  To investigate the expression of forkhead box M1 (FOXM1) and its correlation with clinicopathological features and prognosis in patients with non-small cell lung cancer (NSCLC).
  
  
  METHODS
  The expression of FOXM1 in 68 cases of NSCLC was detected by immunohistochemistry. The FOXM1 expression in 6 tumor tissues (3 cases with negative and 3 cases with positive expression of FOXM1) was analyzed by Western blotting to confirm the immunohistochemical results. The correlation of the expression of FOXM1 with clinicopathalogical features and overall survival of the NSCLC patients was analyzed.
  
  
  RESULTS
  The expression of FOXM1 protein was detected in the nuclei or cytoplasms of the tumor cells. The positive expression rate of FOXM1 was 36.8% (25/68). Western blotting confirmed the immunohistochemical results. The expression level of FOXM1 in advanced stage cancer was significantly higher than that in early stage NSCLC (P = 0.001). The median OS was 23.0 months in patients with negative expression of FOXM1 and 13.0 months in those with positive expression (P = 0.001). Univariate analysis revealed that histological grade, lymph nodes status, TNM stage and FOXM1 expression were significantly associated with prognosis in the NSCLC patients (P < 0.05). The Cox multivariate analysis demonstrated that lymph nodes status, TNM stage and FOXM1 expression were independent poor prognostic factors (P < 0.05).
  
  
  CONCLUSIONS
  The expression status of FOXM1 in NSCLC is an independent prognostic factor and negatively correlated with prognosis.
authors.affiliation: Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, China.
authors.forename: Yi-qian
authors.initials: YQ
authors.lastname: Liu
authors.forename: Ren-hua
authors.initials: RH
authors.lastname: Guo
authors.forename: Lian-ke
authors.initials: LK
authors.lastname: Liu
authors.forename: Wen
authors.initials: W
authors.lastname: Gao
authors.forename: Cheng-jun
authors.initials: CJ
authors.lastname: Zhu
authors.forename: Juan
authors.initials: J
authors.lastname: Wei
authors.forename: Yong-qian
authors.initials: YQ
authors.lastname: Shu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002289:Carcinoma, Non-Small-Cell Lung / Q000378:metabolism* / Q000473:pathology*; D005260:Female; D005500:Follow-Up Studies; D000072278:Forkhead Box Protein M1; D051858:Forkhead Transcription Factors / Q000378:metabolism*; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D007150:Immunohistochemistry; D008175:Lung Neoplasms / Q000378:metabolism* / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D060787:Neoplasm Grading; D009367:Neoplasm Staging; D016016:Proportional Hazards Models
chemical_list: C107585:FOXM1 protein, human; D000072278:Forkhead Box Protein M1; D051858:Forkhead Transcription Factors