title: [Comparison of TGF-beta1 expression of lung cancer in Gejiu miners with that in non-miners in other regions].
abstract: OBJECTIVE
  To investigate the different expression of transforming growth factor beta(1) (TGF-beta(1)) in lung cancer specimens of Gejiu miners, and non-miners in other regions.
  
  
  METHODS
  Thirty specimens of Gejiu miners' lung cancer and 30 specimens of non-miners' were observed in this experiment. The expression of TGF-beta(1) protein and TGF-beta(1) mRNA were detected by the methods of immunohistochemistry and in situ hybridization. The results were quantitatively analyzed using image analysis system.
  
  
  RESULTS
  The positive rate of TGF-beta(1) protein expression in Gejiu miners and non-miners was 75.39%and 44.78% respectively, and the positive rate of TGF-beta(1) mRNA was 63.96% and 34.07% respectively. There were significant differences between the two groups (P < 0.01).
  
  
  CONCLUSIONS
  The expression of TGF-beta(1) in lung cancer of Gejiu miners was significantly higher than that of non-miners. The pathogenesis of lung cancer may be different between Gejiu miner and non-miners. High expression of TGF-beta(1) may be one of the reasons of high incidence of lung cancer in Gejiu miners.
authors.affiliation: Department of Pathology, Kunming Medical College, Kunming 650031, China.
authors.forename: Ping
authors.initials: P
authors.lastname: Jiang
authors.forename: Ke-wei
authors.initials: KW
authors.lastname: Jin
authors.forename: Qian
authors.initials: Q
authors.lastname: Gao
mesh_terms: D006801:Humans; D007150:Immunohistochemistry; D017403:In Situ Hybridization; D008175:Lung Neoplasms / Q000235:genetics / Q000378:metabolism / Q000473:pathology*; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D016212:Transforming Growth Factor beta / Q000235:genetics / Q000276:immunology*; D053773:Transforming Growth Factor beta1
chemical_list: D012333:RNA, Messenger; C508960:TGFB1 protein, human; D016212:Transforming Growth Factor beta; D053773:Transforming Growth Factor beta1