›› 2013, Vol. 28 ›› Issue (6): 503-505.DOI: 10.3969/j.issn.1673-8640.2013.05.012

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The application significance of serum insulin-like growth factor 1 determination in the early diagnosis of non-small cell lung cancer

  

  1. 1.Department of Clinical Laboratory,Cancer Hospital of Tianjin Medical University,Tianjin 300060,China;2.Institute of Radiation Medicine,Chinese Academy of Medical Sciences,Tianjin 300060,China; 3.Department of Pulmonary Medicine,Cancer Hospital of Tianjin Medical University,Tianjin 300060,China
  • Received:2012-12-31 Revised:2013-01-30 Online:2013-06-30 Published:2013-06-11

Abstract: Objective To study the sigificance of insulin-like growth factor 1(IGF-1)in the diagnosis of non-small cell lung cancer.  Methods The serum IGF-1 levels in 90 patients with non-small cell lung cancer and 20 healthy controls were determined by immunoradiometric quantitation assay.  Results The levels of serum IGF-1 were significantly higher in non-small cell lung cancer group than in healthy control group [(122.6±20.3)ng/mL and(82.7±20.5)ng/mL,P<0.05]. The levels of IGF-1 in all patients with lymphatic metastasis [(133.2±21.3)ng/mL] were higher than those in patients without lymphatic metastasis [(108.2±15.1)ng/mL,P<0.05]. The levels of IGF-1 in patients at Phase Ⅲ-Ⅳ[(129.3±20.1)ng/mL] were higher than those at Phase Ⅰ-Ⅱ [(115.2±15.2)ng/mL,P<0.05]. In non-small cell lung cancer group,the levels of IGF-1 had a significantly positive correlation with carcinoembryonic antigen(CEA)and cytokeratin-19-fragment(CYERA21-1)respectively(r=0.58 and r=0.49,P<0.01).  Conclusions High level of serum IGF-1 may have a significant correlation with the pathogenesis,development and metastasis of non-small cell lung cancer,and IGF-1 may have an application significance for the early diagnosis of lung cancer.

Key words: Insulin-like growth factor 1, Non-small cell lung cancer, Early diagnosis