机构:[1]China Med Univ, Dept Neurosurg, Hosp 1, Shenyang, Peoples R China;[2]China Med Univ, Dept Pathol, Shengjing Hosp, Shenyang, Peoples R China;其他科室病理科中国医科大学盛京医院[3]Capital Med Univ, Beijing Neurosurg Inst, Harbin, Peoples R China;研究所北京市神经外科研究所首都医科大学附属天坛医院[4]Harbin Med Univ, Dept Neurosurg, Affiliated Hosp 2, Harbin, Peoples R China
Objective:To investigate the local immune status and its prognostic value in glioma.Methods:A cohort of 297 glioma samples with whole genome microarray expression data from the Chinese Glioma Genome Atlas database were included for discovery. The Cancer Genome Atlas (TCGA) database was used for validation. Principal components analysis and gene set enrichment analysis were used to explore the bioinformatic implication.Results:Distinct local immune status was identified according to histologic grade. Glioblastoma (GBM) exhibited an enhanced immune phenotype compared to lower grade glioma. We profiled the immune-related gene set and identified 8 genes (FOXO3, IL6, IL10, ZBTB16, CCL18, AIMP1, FCGR2B, and MMP9) with the greatest prognostic value in GBM. A local immune-related risk signature was developed from the genes to distinguish cases as high or low risk of unfavorable prognosis, which could be validated in TCGA database. High-risk patients conferred an enhanced intensity of local immune response compared to low-risk ones. Additionally, the signature exhibited different distribution based on molecular features. The signature had prognostic significance in the stratified cohorts and was identified as an independent prognostic factor for GBM.Conclusions:We profiled the immune status in glioma and established a local immune signature for GBM, which could independently identify patients with a high risk of reduced survival, indicating the relationship between prognosis and local immune response.
基金:
National High Technology Research and Development Program of China (863)National High Technology Research and Development Program of China [2012AA02A508]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [81172409, 81472360]; Science and Technology Department of Liaoning Province [2011225034]