Open Access

Development and validation of a novel ferroptosis‑related lncRNA prognostic signature for pancreatic adenocarcinoma

  • Authors:
    • Jian Li
    • Wenhua Li
    • Huaizhi Wang
    • Bing Ni
    • Yongkang Liu
  • View Affiliations

  • Published online on: January 18, 2023     https://doi.org/10.3892/mmr.2023.12943
  • Article Number: 56
  • Copyright: © Li et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Long non‑coding RNAs (lncRNAs) serve a pivotal role in the regulation of cancer cell ferroptosis. However, the prognostic value of ferroptosis‑related lncRNAs in pancreatic adenocarcinoma (PAAD) largely remains unclear. We aimed at constructing a lncRNA‑based signature to improve the prognosis prediction of PAAD. In the present study, the transcriptome profiling data and clinical information of patients with PAAD were obtained from The Cancer Genome Atlas (TCGA) and International Cancer Gene Consortium (ICGC) databases. Univariate Cox regression analysis of the TCGA cohort demonstrated that 26 ferroptosis‑related lncRNAs had significant prognostic value for PAAD (all P<0.01). Least absolute shrinkage and selection operator regression and multivariate Cox proportional hazards regression analyses were performed to construct a prognostic ferroptosis‑related lncRNA signature (FRLS) comprising nine ferroptosis‑related lncRNAs. The efficacy of this FRLS was verified in the training (TCGA) and validation (ICGC) cohorts. Based on the risk model, high risk scores were significantly correlated with poor overall survival (OS) (hazard ratio, 1.314; 95% confidence interval, 1.218‑1.418; P<0.001). The receiver operating characteristic curves and principal component analysis further demonstrated the robust prognostic ability of the FRLS. Furthermore, a nomogram with favorable predictive efficacy for the prediction of OS was constructed based on the FRLS and clinical features. Gene set enrichment analysis demonstrated that the genes in the FRLS participated in a number of cancer‑associated immunoregulatory pathways. Importantly, it was demonstrated that immune infiltration and response to cancer immunotherapy differed significantly between the high and low‑risk groups according to the FRLS. In conclusion, the risk signature based on the FRLS has potential for the clinical prediction of prognosis and immunotherapy response in patients with PAAD.
View Figures
View References

Related Articles

Journal Cover

February-2023
Volume 27 Issue 2

Print ISSN: 1791-2997
Online ISSN:1791-3004

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Li J, Li W, Wang H, Ni B and Liu Y: Development and validation of a novel ferroptosis‑related lncRNA prognostic signature for pancreatic adenocarcinoma. Mol Med Rep 27: 56, 2023
APA
Li, J., Li, W., Wang, H., Ni, B., & Liu, Y. (2023). Development and validation of a novel ferroptosis‑related lncRNA prognostic signature for pancreatic adenocarcinoma. Molecular Medicine Reports, 27, 56. https://doi.org/10.3892/mmr.2023.12943
MLA
Li, J., Li, W., Wang, H., Ni, B., Liu, Y."Development and validation of a novel ferroptosis‑related lncRNA prognostic signature for pancreatic adenocarcinoma". Molecular Medicine Reports 27.2 (2023): 56.
Chicago
Li, J., Li, W., Wang, H., Ni, B., Liu, Y."Development and validation of a novel ferroptosis‑related lncRNA prognostic signature for pancreatic adenocarcinoma". Molecular Medicine Reports 27, no. 2 (2023): 56. https://doi.org/10.3892/mmr.2023.12943