title: [The expression of Bcl-2 gene in human lung cancer.].
abstract: BACKGROUND
  To explore the relationship between the Bcl-2 gene transcript expression and the oncogenesis , and development of lung cancer.
  
  
  METHODS
  The expression of Bcl-2 mRNA was detected in 31 human lung cancer tissues , para-cancer tissues , non-cancer tissues and 13 benign lesion tissues by Northern blot.
  
  
  RESULTS
  (1) The expression level of the Bcl-2 mRNA in the cancer tissues was significantly higher than that in the non-cancer tissues and benign lesion tissues ( P < 0. 01) , but there was no significant difference among the cancer and para-cancer tissues ,non-cancer and benign lesion tissues , para-cancer ,non-cancer and benign lesion tissues either ( P > 0. 05). (2) The Bcl-2 expression in poor-differentiated lung cancers was significantly higher than that in moderate-well differentiated lung cancers. (3) No significant difference was observed in Bcl-2 expression in different histoclassification of the cancer and P-TNM stages of the cancer.
  
  
  CONCLUSIONS
  There is an overexpression of Bcl-2 mRNA in lung cancer tissues , and it may be involved in the oncogenesis and development of lung cancer.
authors.affiliation: Department of Thoracocardiac Surgery , The First University Hospital , West China University of Medical Sciences , Chengdu , Sichuan 610041 , P. R. China.
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: Q
authors.initials: Q
authors.lastname: Zhou
authors.forename: W
authors.initials: W
authors.lastname: Zhang
authors.forename: L
authors.initials: L
authors.lastname: Liu
authors.forename: H
authors.initials: H
authors.lastname: Jing
authors.forename: J
authors.initials: J
authors.lastname: Liu
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.forename: Z
authors.initials: Z
authors.lastname: Yang