NLRP6-Dependent Pyroptosis-Related lncRNAs Predict the Prognosis of Hepatocellular Carcinoma

被引:5
|
作者
Zhang, La [1 ]
Zhang, Xiuzhen [2 ]
Zhao, Wei [2 ]
Xiao, Xinyu [2 ]
Liu, Shanshan [1 ]
Peng, Qiling [2 ]
Jiang, Ning [3 ]
Zhou, Baoyong [1 ]
机构
[1] Chongqing Med Univ, Affiliated Hosp 1, Dept Hepatobiliary Surg, Chongqing, Peoples R China
[2] Chongqing Med Univ, Sch Basic Med Sci, Chongqing, Peoples R China
[3] Chongqing Med Univ, Dept Pathol, Chongqing, Peoples R China
关键词
hepatocellular carcinoma; lncRNA; NLRP6; pyroptosis; prognostic model; LONG NONCODING RNA; CELL-CYCLE; PROGRESSION; LANDSCAPE; GROWTH; MODELS;
D O I
10.3389/fmed.2022.760722
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Pyroptosis, a novel pro-inflammatory type of programmed cell death, is involved in the tumorigenesis of various cancers. Recent findings have implicated long non-coding RNAs (lncRNAs) in the serial steps of cancer development. However, the expression and prognostic signatures of pyroptosis-related lncRNAs in hepatocellular carcinoma (HCC) remain largely unknown. Therefore, a pyroptosis-related lncRNA prognostic model was constructed for HCC. Thirty-four pyroptosis-related genes were obtained from previous reviews, and gene expression data were collected from The Cancer Genome Atlas (TCGA) database. Spearman's correlation test was used to identify potential pyroptosis-related lncRNAs. Cox and LASSO regression analyses were used to construct a prognostic model. Subsequently, receiver operating characteristic (ROC) curves were constructed to assess the model's predictive ability for the overall survival (OS) of HCC patients. CytoHubba was used to screen out the potential hub gene, whose expression was verified using clinical samples from HCC patients. Finally, nine pyroptosis-related differentially expressed lncRNAs in HCC were identified, and a prognostic model with four pyroptosis-related lncRNAs was constructed with an area under the ROC curve (AUC) of approximately 0.734. Single-sample gene set enrichment analysis and TCGA revealed different immune infiltration and immune checkpoints between the two risk groups. Moreover, these lncRNAs are closely related to the pyroptosis-related gene, NLRP6, which may be considered a hub gene. NLRP6 was lower-expressed in HCC samples, and patients with lower expression of NLRP6 had the longer OS. In conclusion, NLRP6-dependent pyroptosis-related lncRNAs play important roles in tumor immunity and may be potential predictors and therapeutic targets for HCC.
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页数:13
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