Laboratory Medicine ›› 2017, Vol. 32 ›› Issue (1): 1-4.DOI: 10.3969/j.issn.1673-8640.2017.01.001

• Orginal Article •     Next Articles

Correlation of circulating insulin-like growth factor-1 and clinicopathological parameters in colorectal cancer

XU Dandan1, WANG Ruyao2, LIU Rui1, ZHAO Lijie1, HU Liling1, SUN Ao1, WU Ping1   

  1. 1. Laboratory Department,Tianjin Union Medicine Center,Tianjin 300121,China
    2. Graduate School,Tianjin Medical University,Tianjin 300070,China
  • Received:2016-01-26 Online:2017-01-20 Published:2017-02-10

Abstract:

Objective To investigate circulating insulin-like growth factor-1(IGF-1) in the progression of colorectal cancer (CRC). Methods The levels of circulating IGF-1,carcinoembryonic antigen(CEA) and carbohydrate antigen 19-9 (CA19-9) were determined by chemiluminescence in 196 patients with CRC and 241 healthy controls. Results The level of circulating IGF-1 in CRC group [(143.86±55.07)ng/mL] was higher than that in healthy control group [(133.60±46.76)ng/mL](P<0.05). In healthy control group,the level of circulating IGF-1 in male group was higher than that in female group,which decreased with the increasing of age(P<0.05). The risk of CRC was high relatively in subjects with high circulating IGF-1 [odds ratio(OR)=1.72,95% confidence interval(CI) 1.049-2.835,P<0.05]. The level of circulating IGF-1 was higher in CRC group with tumor≥5 cm,at advanced stages(stage Ⅲ and stages Ⅳ),with low differentiation and with lymphoid node metastasis than those with tumor <5 cm,at early stages (stage Ⅰ and stage Ⅱ),with middle and high differentiation and without lymphoid node metastasis (P<0.05). The levels of CEA and CA19-9 were correlated to the pathological staging of tumor. The sensitivity of circulating IGF-1 combined determination with CEA and CA19-9 (58.16%)was higher than those of single items (23.98% for circulating IGF-1,32.22% for CEA and 15.31% for CA19-9)(P<0.05). Conclusions Circulating IGF-1 is an independent risk factor for CRC and plays an important role in the progression of CRC,and it has clinical significance for the prognosis evaluation of CRC. Circulating IGF-1 combined determination with CEA and CA19-9 could improve the determination sensitivity for CRC.

Key words: Insulin-like growth factor-1, Carcinoembryonic antigen, Carbohydrate antigen 19-9, Colorectal cancer

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