关键词: Biomarker EMT IDH1 Lower grade gliomas (LGGs) Lysyl oxidase (LOX) TCGA

Mesh : Adult Brain Neoplasms / diagnosis genetics pathology Epithelial-Mesenchymal Transition Female Gene Expression Regulation, Neoplastic Glioma / diagnosis genetics pathology Humans Kaplan-Meier Estimate Male Prognosis Protein-Lysine 6-Oxidase / analysis genetics

来  源:   DOI:10.1016/j.bbrc.2018.04.228

Abstract:
Lower grade gliomas (LGGs) have highly diverse clinical phenotypes. The histological grade and type are insufficient to accurately predict the clinical outcomes of patients with LGGs. Therefore, identification of biomarkers that can facilitate the prediction of clinical outcomes in LGGs is urgently needed. Gene expression of LOX has been identified as a biomarker for various cancers. However, the clinical significance of LOX expression in LGGs has not been investigated. In this study, we analyzed the glioma RNA-seq dataset from TCGA (The Cancer Genome atlas) and identified lysyl oxidase (LOX) as a potential biomarker for LGGs. Kaplan-Meier survival analysis revealed that high LOX expression is associated with worse overall survival and recurrence free survival in LGG patients. Besides, high LOX expression is associated with poor response to primary therapy, follow-up treatment, targeted molecular therapy, and radiation therapy. Univariate and multivariate Cox regression analyses further confirmed LOX expression as an independent prognostic factor for LGG patients. Finally, we observed that LOX expression is significantly correlated with EMT (epithelial to mesenchymal transition) and IDH1 status in LGGs. In conclusion, our analyses suggest that LOX expression is a potential biomarker for prognosis and therapeutic response in LGGs.
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