Home Neoplasma 2017 Neoplasma Vol.64, No.5, p.778-786, 2017

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Neoplasma Vol.64, No.5, p.778-786, 2017

Title: Identification of chemokine CXCL10 in tumor microenvironment by antibody array as a prognostic marker in hepatocellular carcinoma
Author: L. Li, Y. H. Zhu, Y. Li, X. Y. Guan


Immunological microenvironment is not only composed of multiple immune cells, but also deposited various inflammation factors that regulate immune response to tumor cells. To ascertain the crucial immune factors presented in hepatocellular carcinoma microenvironment (HCM), tumor tissue culture supernatant (TCS) and the corresponding non-tumor tissue culture supernatant (NCS) from patient with hepatocellular carcinoma (HCC) were analyzed by antibody array technology. Among the inflammation-associated cytokines assayed, high level of chemokines CXCL8/IL-8 (6.82-fold increase) and CXCL10/IP-10 (16.45-fold increase) in TCS than that in paired NCS were evidently identified. And low expression of IL-16 (0.14-fold decrease) and RANTES/CCL5 (0.17-fold decrease) in TCS were also uncovered. Especially, overexpression of CXCL10 in primary HCC compared with their non-tumor counterparts was significantly associated with serum AFP level (P = 0.004), tumor size (P = 0.021), tumor number (P < 0.001) and TNM stage (P = 0.027).

In addition, Kaplan-Meier curves demonstrated that patients with higher CXCL10 expression levels had significantly poorer overall survival (P = 0.016) and disease-free survival (P = 0.022) than those with lower CXCL10 expression levels. Univariate and multivariate analyses revealed that the level of CXCL10 expression was an independent prognostic factor for overall survival in HCC patients. In summary, high concentration of CXCL10 is deposited in HCM identified by antibody array, which may contribute to the prediction of clinical outcome of HCC patients.

Keywords: CXCL10, hepatocellular carcinoma, tumor microenvironment, tissue culture, antibody array
Published online: 31-Aug-2017
Year: 2017, Volume: 64, Issue: 5 Page From: 778, Page To: 786

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