CIB1 as a potential diagnosis and prognosis biomarker in uveal melanoma

BackgroundUveal melanoma (UVM) is the most common primary intraocular tumor in adults. However, identification of the effective biomarker for the diagnosis and treatment of UVM remain to be explored. Calcium and integrin-binding protein 1 (CIB1) is emerging as an important mediator in carcinogenesis and tumor progression. In the present study, we aim to determine the contribution of CIB1 in the diagnosis of UVM.MethodsImmumohistochemical staining is used to detect the CIB1 expression level, while Gene Expression Profiling Interactive Analysis 2 (GEPIA2) and UALCAN online tools were used to further analyze patient survival and CIB1 correlation genes in UVM. Integrative analysis using STRING and GeneMANIA predicted the correlated genes with CIB1 in UVM.ResultsTo the best of our knowledge the novel observations identified in the present study reveal that CIB1 expression level in UVM was significantly enhanced when compared with that in paracancerous tissues. A higher CIB1 expression level resulted in a significant worse disease free survival as well as overall survival. Moreover, survival probability of patients with UVM was associated with body weight and gender of the the patients. The correlated genes with CIB1 in UVM, and the similarity of the genes in UVM expression and survival heatmap was verified. Furthermore, Gene ontology enrichment analysis revealed that CIB1 and its correlated genes are significantly enriched in ITGA2B-ITGB3-CIB1 complex, regulation of intracellular protein transport and regulation of ion transport.ConclusionsTaken together, our novel findings suggested that CIB1 might be a potential diagnostic predictor for UVM, and might contribute to the potential strategy for UVM treatment by targeting CIB1.# These authors contributed equally to this work