Exploration of Prognostic Biomarkers and Therapeutic Targets in The Microenvironment of Bladder Cancer Based on CXC Chemokines Xiaoqi Sun Department of Urology, Kaiping Central Hospital, Kaiping, 529300, China Qunxi Chen Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China Lihong Zhang Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China Jiewei Chen Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China Xinke Zhang (
[email protected] ) Sun Yat-sen University Cancer Center Research Keywords: Bladder cancer, Biomarkers, CXC Chemokines, Microenvironment Posted Date: February 24th, 2021 DOI: https://doi.org/10.21203/rs.3.rs-223127/v1 License: This work is licensed under a Creative Commons Attribution 4.0 International License. Read Full License Page 1/29 Abstract Background: Bladder cancer (BLCA) has a high rate of morbidity and mortality, and is considered as one of the most malignant tumors of the urinary system. Tumor cells interact with surrounding interstitial cells, playing a key role in carcinogenesis and progression, which is partly mediated by chemokines. CXC chemokines exert anti‐tumor biological roles in the tumor microenvironment and affect patient prognosis. Nevertheless, their expression and prognostic values patients with BLCA remain unclear. Methods: We used online tools, including Oncomine, UALCAN, GEPIA, GEO databases, cBioPortal, GeneMANIA, DAVID 6.8, Metascape, TRUST (version 2.0), LinkedOmics, TCGA, and TIMER2.0 to perform the relevant analysis. Results: The mRNA levels of C-X-C motif chemokine ligand (CXCL)1, CXCL5, CXCL6, CXCL7, CXCL9, CXCL10, CXCL11, CXCL13, CXCL16, and CXCL17 were increased signicantly increased, and those of CXCL2, CXCL3, and CXCL12 were decreased signicantly in BLCA tissues as assessed using the Oncomine, TCGA, and GEO databases.