Journal of Practical Hepatology ›› 2021, Vol. 24 ›› Issue (5): 741-744.doi: 10.3969/j.issn.1672-5069.2021.05.034

• Hepatoma • Previous Articles     Next Articles

Clinical implication of serum CXCL9 and IFN-γ levels in patients with intrahepatic cholangiocarcinoma

Song Xue, Xi Zihan, Li Ting, et al   

  1. Department of Hepatobiliary Pancreatic and Splenic Surgery, First Affiliated Hospital, Air Force Medical University, Xi'an 710032, Shaanxi Province, China
  • Received:2020-09-11 Published:2021-10-21

Abstract: Objective The purpose of this study was to investigate the clinical implication of serum C-X-C chemokine ligand 9 (CXCL9) and interferon-γ (IFN-γ) levels in patients with intrahepatic cholangiocarcinoma (ICC). Methods A total of 63 patients with ICC and 63 healthy persons were enrolled in our hospital between January 2012 and January 2017, and all patients underwent radical tumor removal and followed-up for 36 months. Serum levels of CXCL9 and IFN-γ were detected by enzyme-linked immunosorbent assay. The Kaplan-Meier survival curve was applied to analyze serum CXCL9 and IFN-γ levels in predicting the prognosis of patients with ICC after operation. Results Serum CXCL9 and IFN-γ levels in patients with ICC were (820.7±185.6)pg/mL and (18.7±7.2)ng/L, significantly different as compared to or in healthy persons; there were significant differences as respect to serum CXCL9 and IFN-γ levels between ICC patients with TNM stage Ⅰ/Ⅱ vs. stage Ⅲ/Ⅳ, with or without lymph node metastasis, and poorly vs. moderately/highly differentiated tumors(P<0.05); at the end of 36 month follow-up, 42 (66.7%) patients with ICC died and 21 (33.3%)patients survived in our series; 30 patients with ICC had low and 33 had high serum CXCL9 levels when 820.7 pg/mL was set as the cut-off-value, and the Kaplan-Meier analysis showed that the 36mon survival in patients with low serum CXCL9 levels was 53.3%, significantly higher than 15.2%(x2=12.448, P<0.001)in patients with high serumCXCL9 levels; 34 ICC patients had low and 29 patients had high serum IFN-γ levels when 18.7 ng/L was set as the cut-off-value, and the 36mon survival in patients with low serum IFN-γ levels was 14.7%, significantly lower than 55.2%(x2=10.554,P=0.001) in patients with high serum IFN-γ levels. Conclusion Serum CXCL9 levels increase and serum IFN-γ levels decrease in patients with ICC, and serum CXCL9 and IFN-γ levels are correlated with the prognosis of ICC patients after radical operation. The surveillance of serum CXCL9 and IFN-γ levels in this setting is helpful to evaluate the prognosis of patients with ICC.

Key words: Intrahepatic cholangiocarcinoma, C-X-C motif chemokine ligand 9, Interferon-γ, Prognosis