Expression and Significance of TSGF, CEA and AFP in Patients Before and after Radical Surgery for Colon Cancer

  • Hu, Yi (Department of Oncology, Chinese PLA General Hospital) ;
  • Wang, Jing-Liang (Department of Oncology, Chinese PLA General Hospital) ;
  • Tao, Hai-Tao (Department of Oncology, Chinese PLA General Hospital) ;
  • Wu, Bai-Shou (Department of Oncology, Chinese PLA General Hospital) ;
  • Sun, Jin (Department of Oncology, Chinese PLA General Hospital) ;
  • Cheng, Yao (Department of Oncology, Chinese PLA General Hospital) ;
  • Dong, Wei-Wei (Department of Oncology, Chinese PLA General Hospital) ;
  • Li, Rui-Xin (Department of Oncology, Chinese PLA General Hospital)
  • Published : 2013.06.30


Objective: To explore the expression and significance of tumor specific growth factor (TSGF), carcinoembryonic antigen (CEA) and alpha fetoprotein (AFP) in cancer tissue and serum of patients with colon cancer. Materials and Methods: Radical surgery for colon cancer was performed on 43 patients with laparoscopu under conditions of general anesthesia. The Elisa method was used to detect the levels of serum TSGF, CEA and AFP before and after radical operation, and cancer tissue underwent TSGF, CEA and AFP immunohistochemistry staining after laparoscopic surgery. The decreased conditions of serum TSGF, CEA and AFP in patients with colon cancer at different levels of differentiation and clinical stagings were analyzed, and the relationships of expression rates between histological types, colon cancer morphology, lymph node metastasis and TSGF, CEA as well as AFP in cancer tissue were assessed. Results: Compared with before radical surgery, the levels of serum TSGF, CEA and AFP decreased notably in patients after operations (p<0.01). The decreased degree of TSGF and CEA was the largest in patients with poorly differentiated cancer tissue (p<0.01), while that of AFP was noted in patients with moderately differentiated cancer tissue (p<0.01). The decreased degree of TSGF and AFP was the largest in patients at phase Dukes A (p<0.01), while that of CEA in patients at phase Dukes C (p<0.01). There were no significant differences among the positive expression rates of TSGF, CEA and AFP with different histological types and colon cancer morphologies (p>0.05). The positive expression rates of TSGF and CEA in patients with lymph node metastasis were significantly higher than those without lymph node metastasis (p<0.01). Conclusions: TSGF, CEA and AFP can be used to evaluate the effect of radical operation for colon cancer, and the changed levels of different markers are associated with tumor differentiation, clinical stating and presence or absence of lymph node metastasis.


Supported by : Foundation of Roche Gastrointestinal College


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