›› 2013, Vol. 28 ›› Issue (4): 301-304.DOI: 10.3969/j.issn.1673-8640.2013.04.012

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Detection of peripheral blood high mobility group protein box-1 in patients with gastric cancer and its clinical significance

  

  1. Department of Clinical Laboratory,the Third Affiliated Hospital of Nantong University,Jiangsu Wuxi 214041,China
  • Received:2012-03-26 Revised:2012-05-22 Online:2013-04-30 Published:2013-04-05

Abstract: Objective To investigate the change and clinical significance of serum high mobility group protein box-1 (HMGB1) in patients with gastric cancer.   Methods The serum levels of HMGB1 were determined by enzyme-linked immunosorbent assay (ELISA) in 101 patients with gastric cancer,31 patients with benign gastric diseases and 40 healthy controls. Simultaneously,serum carcinoembryonic antigen(CEA) was determined by electrochemiluminescence (ECL). The results were expressed as median (range). Results The levels of serum HMGB1 and CEA in patients with gastric cancer were 15.58(3.05-125.63)ng/mL and 11.75(0.85-850.23)ng/mL. The levels of serum HMGB1 and CEA in patients with benign gastric diseases were 4.46(2.61-12.06)ng/mL and 2.75(0.52-11.23)ng/mL. The levels of serum HMGB1 and CEA in healthy controls were 3.24(2.50-5.38)ng/mL and 1.23(0.45- 4.56)ng/mL. The levels of serum HMGB1 and CEA in patients with gastric cancer were significantly higher than those in patients with benign gastric diseases and healthy controls ( P<0.01). The levels of serum HMGB1 were significantly associated with tumor size,gastric wall invasion, TNM stage and lymph node metastasis(P<0.05). Compared to the traditional tumor marker CEA, the diagnostic sensitivity and specificity of serum HMGB1 were 72.2% and 74.6% for the diagnosis of early gastric cancer.  Conclusions HMGB1 plays a role in the tumorigenesis and development of gastric cancer. The determination of HMGB1 in serum of patients with gastric cancer is helpful for improving early diagnosis, monitoring and predicting the prognosis in gastric cancer.

Key words: High mobility group protein box-1, Tumor marker, Enzyme-linked immunosorbent assay, Gastric cancer