CXCR4 expression affects overall survival of HCC patients whereas CXCR7 expression does not(837 views) Neve Polimeno M, Ierano C, D'Alterio C, Simona Losito N, Napolitano M, Portella L, Scognamiglio G, Tatangelo F, Maria Trotta A, Curley S, Costantini S, Liuzzi R, Izzo F, Scala S
Cell Mol Immunol (ISSN: 1672-7681), 2014 Nov 3; 12(4): 474-482.
Keywords: Cxcl12, Hepatocellular Carcinoma, Prognosis, Chemokine Receptor Cxcr4, Messenger Rna, Plerixafor, Article, Cancer Grading, Cancer Growth, Cancer Prognosis, Cancer Staging, Cancer Survival, Cell Invasion, Cell Migration, Human, Human Cell, Immunocytochemistry, Immunohistochemistry, Liver Cell Carcinoma, Major Clinical Study, Overall Survival, Progression Free Survival, Protein Expression, Protein Function, Protein Localization, Tumor Volume, Upregulation, Adult, 80 And Over, Immunology, Metabolism, Mortality, Disease-Free Survival, Female, Gene Expression Regulation, Neoplastic, Hep G2 Cells, Liver Neoplasms, Middle Aged, Neoplasm Proteins, Biosynthesis, Survival Rate, Cxcr4 Protein, Cxcr7 Protein, Tumor Protein, Disease Free Survival, Hep-G2 Cell Line, Liver Tumor, Very Elderly,
Affiliations: *** IBB - CNR ***
Oncological Immunology, Istituto Nazionale per lo Studio e la Cura dei Tumori, "Fondazione Giovanni Pascale"-IRCCS-ITALIA, Naples, Italy.
Pathology Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori, "Fondazione Giovanni Pascale"-IRCCS-ITALIA, Naples, Italy.
Department of Surgical Oncology, University of Texas MD Anderson Cancer Center, Houston, TX, USA.
CROM-Centro Ricerche Oncologiche Mercogliano, Mercogliano (AV), Italy.
Institute of Biostructure and Bioimaging (IBB) of the Italian National Research Council, Naples, Italy.
Hepato-Biliary Surgery Unit, Istituto Nazionale per lo Studio e la Cura dei Tumori, "Fondazione Giovanni Pascale"-IRCCS-ITALIA, Naples, Italy.
References: Not available.
CXCR4 expression affects overall survival of HCC patients whereas CXCR7 expression does not
Hepatocellular carcinoma (HCC) is a heterogeneous disease with a poor prognosis and limited markers for predicting patient survival. Because chemokines and chemokine receptors play numerous and integral roles in HCC disease progression, the CXCR4-CXCL12-CXCR7 axis was studied in HCC patients. CXCR4 and CXCR7 expression was analyzed by immunohistochemistry in 86 HCC patients (training cohort) and validated in 42 unrelated HCC patients (validation cohort). CXCR4 levels were low in 22.1% of patients, intermediate in 30.2%, and high in 47.7%, whereas CXCR7 levels were low in 9.3% of patients, intermediate in 44.2% and high in 46.5% of the patients in the training cohort. When correlated to patient outcome, only CXCR4 affected overall survival (P=0.03). CXCR4-CXCL12-CXCR7 mRNA levels were examined in 33/86 patients. Interestingly, the common CXCR4-CXCR7 ligand CXCL12 was expressed at significantly lower levels in tumor tissues compared to adjacent normal liver (P=0.032). The expression and function of CXCR4 and CXCR7 was also analyzed in several human HCC cell lines. CXCR4 was expressed in Huh7, Hep3B, SNU398, SNU449 and SNU475 cells, whereas CXCR7 was expressed in HepG2, Huh7, SNU449 and SNU475 cells. Huh7, SNU449 and SNU475 cells migrated toward CXCL12, and this migration was inhibited by AMD3100/anti-CXCR4 and by CCX771/anti-CXCR7. Moreover, SNU449 and Huh7 cells exhibited matrix invasion in the presence of CXCL12 and CXCL11, a ligand exclusive to CXCR7. In conclusion, CXCR4 affects the prognosis of HCC patients but CXCR7 does not. Therefore, the CXCR4-CXCL12-CXCR7 axis plays a role in the interaction of HCC with the surrounding normal tissue and represents a suitable therapeutic target.Cellular & Molecular Immunology advance online publication, 3 November 2014; doi:10.1038/cmi.2014.102.
CXCR4 expression affects overall survival of HCC patients whereas CXCR7 expression does not
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CXCR4 expression affects overall survival of HCC patients whereas CXCR7 expression does not