Evaluation of the prognostic value of CBXs in gastric cancer patients

作者：Mengya He, Limin Yue, Haiyan Wang, Feiyan Yu, Mingyang Yu, Peng Ni, Ke Zhang, Shuaiyin Chen, Guangcai Duan, Rongguang Zhang · 发表于：Scientific Reports · 年份：2021 · DOI：10.1038/s41598-021-91649-7 · 被引用次数：13 · 研究领域：Epigenetics and DNA Methylation、Cancer-related gene regulation、Genomics and Chromatin Dynamics

Chromobox (CBX) proteins were suggested to exert epigenetic regulatory and transcriptionally repressing effects on target genes and might play key roles in the carcinogenesis of a variety of carcinomas. Nevertheless, the functions and prognostic significance of CBXs in gastric cancer (GC) remain unclear. The current study investigated the roles of CBXs in the prognosis of GC using the Oncomine, The Gene Expression Profiling Interactive Analysis (GEPIA), UALCAN, The Cancer Genome Atlas (TCGA), and cBioPortal databases. CBX1/2/3/4/5 were significantly upregulated in GC tissues compared with normal tissues, and CBX7 was downregulated. Multivariate analysis showed that high mRNA expression levels of CBX3/8 were independent prognostic factors for prolonged OS in GC patients. In addition, the genetic mutation rate of CBXs was 37% in GC patients, and genetic alterations in CBXs showed no association with OS or disease-free survival (DFS) in GC patients. These results indicated that CBX3/8 can be prognostic biomarkers for the survival of GC patients.