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一种新型铁死亡相关长链非编码RNA特征预测胰腺癌临床预后并与免疫格局相关

A Novel Ferroptosis-Related lncRNAs Signature Predicts Clinical Prognosis and Is Associated With Immune Landscape in Pancreatic Cancer.

作者信息

Ping Haiqin, Jia Xingqing, Ke Hengning

机构信息

Department of Infectious Disease, Hubei AIDS Clinical Training Center, Zhongnan Hospital of Wuhan University, Wuhan, China.

Jinan City People's Hospital, Jinan, China.

出版信息

Front Genet. 2022 Mar 7;13:786689. doi: 10.3389/fgene.2022.786689. eCollection 2022.

Abstract

Pancreatic cancer is one of the most lethal malignancies and currently therapies are severely lacking. In this study, we aimed to establish a novel ferroptosis-related lncRNAs signature to predict the prognosis of patients with pancreatic cancer and evaluate the predictive abilities of candidate lncRNAs. According to The Cancer Genome Atlas (TCGA) database, a total of 182 patients with pancreatic cancer were included in our study. Ferroptosis-related lncRNAs were screened by Pearson correlation analysis with 60 reported ferroptosis-related genes. Through univariate, least absolute shrinkage and selection operator (LASSO) regression and multivariate regression analyses, a novel signature based on five ferroptosis-related lncRNAs() was constructed. Risk-related differentially expressed genes (DEGs) were subjected to enrichment analyses for Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. The results revealed that immune cell infiltration, immune-related functions and checkpoints were factors to affect prognoisis of pancreatic cancer. In summary, we identified the prognostic ferroptosis-related lncRNAs() in pancreatic cancer and these lncRNAs may serve as therapeutic targets for pancreatic cancer.

摘要

胰腺癌是最致命的恶性肿瘤之一,目前严重缺乏有效治疗方法。在本研究中,我们旨在建立一种新的铁死亡相关长链非编码RNA(lncRNA)特征,以预测胰腺癌患者的预后,并评估候选lncRNA的预测能力。根据癌症基因组图谱(TCGA)数据库,我们的研究共纳入了182例胰腺癌患者。通过与60个已报道的铁死亡相关基因进行Pearson相关分析,筛选出铁死亡相关lncRNA。通过单因素、最小绝对收缩和选择算子(LASSO)回归以及多因素回归分析,构建了一个基于五个铁死亡相关lncRNA的新特征。对与风险相关的差异表达基因(DEG)进行基因本体(GO)富集分析、京都基因与基因组百科全书(KEGG)通路富集分析。结果显示,免疫细胞浸润、免疫相关功能和检查点是影响胰腺癌预后的因素。总之,我们在胰腺癌中鉴定出了与预后相关的铁死亡相关lncRNA,这些lncRNA可能成为胰腺癌的治疗靶点。

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