ArticleBMC neurology2025
A computational analysis of programmed cell death-associated LncRNA signatures in glioma and drug prediction.
Article in BMC neurology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundDespite advancements in multimodal therapy, glioma remains a lethal brain tumor with limited prognostic biomarkers. Programmed cell death (PCD) pathways and long non-coding RNAs (lncRNAs) are emerging as therapeutic targets, but their combined prognostic potential in glioma remains underexplored.
methodsRNA sequencing data from The Cancer Genome Atlas (TCGA) and Chinese Glioma Genome Atlas (CGGA) cohorts were analyzed to identify PCD-related lncRNAs. Least Absolute Shrinkage and Selection Operator (LASSO) Cox regression and multivariate Cox proportional hazards regression analyses were applied to construct a prognostic signature, with external validation performed in an independent cohort. Tumor immune microenvironment characterization was subsequently conducted through the Tumor IMmune Estimation Resource (TIMER) database using the inverse fold product algorithm, which quantified six tumor-infiltrating immune cells (TIIC) subtypes across 10,897 pan-cancer samples. Immune checkpoint differential expression between risk strata was assessed via single-sample gene set enrichment analysis (ssGSEA). Drug sensitivity prediction was performed using the Cancer Genome Project (GCP) databases.
resultsA 4-lncRNA signature effectively stratified patients into high-risk and low-risk groups. The prognosis of the high-risk group is worse. In multivariate analysis, a risk score can independently predict the prognosis and has a robust prediction efficiency in the CGGA external verification set. The infiltration of immunosuppressive cells, such as M2 macrophages, increased the expression of immune checkpoints, such as PD-L1, increased, and the infiltration of CD8 + T cells decreased in high-risk patients. Computational screening identified elesclomol as a potential therapeutic agent showing subtype-specific efficacy.
conclusionsThis study highlights the prognostic significance of lncRNAs associated with PCD in glioma and provides computational evidence for their potential as therapeutic targets. While the results suggest novel avenues for treatment development, they must be interpreted cautiously due to the lack of experimental validation. Future studies should aim to validate these results through controlled clinical trials and explore underlying molecular mechanisms.
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