title: The potential of CXCL5 as a target for liver cancer - what do we know so far?
abstract: CXCL5, epithelial cell derived neutrophil attractant 78, is a CXC chemokine predominantly expressed on epithelial cells. It has specificity for CXCR2 receptors and is involved in the recruitment and activation of neutrophils. CXCL5 is considered a therapeutic target in liver cancer, since treatment with small-interfering RNAs or antibodies against CXCL5 can suppress tumor growth, proliferation, migration and invasion. Experimental evidence demonstrated that CXCL5 antibodies could reduce the tumor growth and synergistically increase the efficiency of the tyrosine kinase inhibitor, Gefitinib, without the addition of toxicity. A number of challenges are encountered and should be considered during the development and clinical application of CXCL5 target-specific drugs. The specificity of CXCL5 as a therapeutic target for certain types and duration of cancer should be more carefully clarified, since it seems that CXCL5 is involved in many molecular pathways and crosstalk between targeted chemokines/receptors. The concept that CXCL5 serves as the therapeutic target for liver cancer was evidenced by preclinical studies, and is the beginning of CXCL5-based drug discovery and development.
authors.affiliation: Fudan University, Minhang Hospital , Minhang , China +86 21 64041990 Ext: 5420 ; +86 21 54961729 ; xiangdong.wang@clintransmed.org.
authors.forename: Jinglin
authors.initials: J
authors.lastname: Xia
authors.forename: Xiaojing
authors.initials: X
authors.lastname: Xu
authors.forename: Peixin
authors.initials: P
authors.lastname: Huang
authors.forename: Mingyan
authors.initials: M
authors.lastname: He
authors.forename: Xiangdong
authors.initials: X
authors.lastname: Wang
mesh_terms: D000970:Antineoplastic Agents / Q000494:pharmacology*; D054365:Chemokine CXCL5 / Q000378:metabolism*; D015195:Drug Design; D006801:Humans; D008113:Liver Neoplasms / Q000188:drug therapy* / Q000473:pathology; D058990:Molecular Targeted Therapy; D009504:Neutrophils / Q000378:metabolism; D023063:Receptors, Interleukin-8B / Q000378:metabolism
chemical_list: D000970:Antineoplastic Agents; C486263:CXCL5 protein, human; D054365:Chemokine CXCL5; D023063:Receptors, Interleukin-8B
keywords: CXCL5; CXCR2; drug; liver cancer; therapeutic target