title: [Expressions of c-Cbl, Cbl-b and EGFR and its role of prognosis in NSCLC].
abstract: OBJECTIVE
  Epidermal growth factor receptor (EGFR) is closely correlated with the progression of lung cancer. Its activity is modulated by Casitas B-lineage lymphoma (Cbl) family. The aim of this study is to investigate the expression and clinical relevance of c-Cbl, Cbl-b and EGFR in non-small cell lung cancer (NSCLC).
  
  
  METHODS
  Expressions of c-Cbl, Cbl-b and EGFR protein were detected with tissue microarrays and immunohistochemistry technique in 94 cases of NSCLC. The correlations between the expression of the three proteins and clinicopathological parameters were analyzed.
  
  
  RESULTS
  The positive expression rates of EGFR, c-Cbl and Cbl-b were 60.6% (57/94), 30.9% (29/94) and 84.0% (79/94), respectively. The expression of EGFR, c-Cbl and Cbl-b was not associated with age, pathological type, TNM stage, lymph node metastasis, and smoking history. c-Cbl and Cbl-b status was not significantly correlated with overall survival. Subgroup analyses showed that c-Cbl-positive patients had longer survival than c-Cbl-negative patients in EGFR-positive group (P=0.014).
  
  
  CONCLUSIONS
  Detection of c-Cbl protein levels might contribute to the prognosis evaluation of EGFR-positive NSCLC.
authors.affiliation: Department of Respiratory Medicine, the First Hospital of China Medical University, Shenyang, 110001, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Jiao
authors.forename: Bo
authors.initials: B
authors.lastname: Jin
authors.forename: Xiujuan
authors.initials: X
authors.lastname: Qu
authors.forename: Shunchao
authors.initials: S
authors.lastname: Yan
authors.forename: Kezuo
authors.initials: K
authors.lastname: Hou
authors.forename: Yunpeng
authors.initials: Y
authors.lastname: Liu
authors.forename: Xuejun
authors.initials: X
authors.lastname: Hu
mesh_terms: D048868:Adaptor Proteins, Signal Transducing / Q000378:metabolism*; D000328:Adult; D000368:Aged; D002289:Carcinoma, Non-Small-Cell Lung / Q000175:diagnosis* / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D066246:ErbB Receptors / Q000378:metabolism*; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000235:genetics* / Q000378:metabolism / Q000473:pathology; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D050721:Proto-Oncogene Proteins c-cbl / Q000378:metabolism*
chemical_list: D048868:Adaptor Proteins, Signal Transducing; C492211:CBLB protein, human; D050721:Proto-Oncogene Proteins c-cbl; D066246:ErbB Receptors