RRC ID 70177
Author Yamamoto Y, Sugimoto A, Maruo K, Tsujio G, Sera T, Kushiyama S, Nishimura S, Kuroda K, Togano S, Eguchi S, Tanaka R, Kimura K, Amano R, Ohira M, Yashiro M.
Title CXCR2 signaling might have a tumor-suppressive role in patients with cholangiocarcinoma.
Journal PLoS One
Abstract BACKGROUND:We reported that chemokine C-X-C motif receptor 2 (CXCR2) signaling appears to play an important role in the pathogenic signaling of gastric cancer (GC), and although CXCR2 may have a role in other solid cancers, the significance of CXCR2 in cholangiocarcinoma (CCA) has not been evaluated. Herein, we determined the clinicopathologic significance of CXCL1-CXCR2 signaling in CCA.
MATERIALS AND METHODS:Two human CCA cell lines, OCUG-1 and HuCCT1, were used. CXCR2 expression was examined by western blotting. We investigated the effects of CXCL1 on the proliferation (by MTT assay) and migration activity (by a wound-healing assay) of each cell line. Our immunohistochemical study of the cases of 178 CCA patients examined the expression levels of CXCR2 and CXCL1, and we analyzed the relationship between these expression levels and the patients' clinicopathologic features.
RESULTS:CXCR2 was expressed on both CCA cell lines. CXCL1 significantly inhibited both the proliferative activity and migratory activity of both cell lines. CXCL1 and CXCR2 were immunohistochemically expressed in 73% and 18% of the CCA cases, respectively. The CXCL1-positive group was significantly associated with negative lymph node metastasis (p = 0.043). The CXCR2-positive group showed significantly better survival (p = 0.042, Kaplan-Meier). A multivariate logistic regression analysis revealed that CXCR2 expression (p = 0.031) and lymph node metastasis (p = 0.004) were significantly correlated with the CCA patients' overall survival.
CONCLUSION:CXCR2 signaling might exert a tumor-suppressive effect on CCA cells. CXCR2 might be a useful independent prognostic marker for CCA patients after surgical resection.
Volume 17(4)
Pages e0266027
Published 2022-1-1
DOI 10.1371/journal.pone.0266027
PII PONE-D-21-32702
PMID 35377900
PMC PMC8979434
MeSH Bile Duct Neoplasms* / pathology Bile Ducts, Intrahepatic / pathology Cell Line, Tumor Cell Movement Cell Proliferation Cholangiocarcinoma* / pathology Humans Lymphatic Metastasis Prognosis Receptors, Interleukin-8B* / metabolism
IF 2.74
Human and Animal Cells HuCCT1(RCB1960)