What does this research mean for the field?

While DIO3OS and C9orf139 emerge as candidate survival-associated lncRNAs in glioblastoma during discovery, their failure to replicate in external cohorts demonstrates that rigorous methodological scrutiny severely limits the number of robust lncRNA prognostic biomarkers. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.CHALLENGES_CONSENSUS.

What question did this study set out to answer?

To identify which long non-coding RNA associations with glioblastoma survival persist when standardized endpoints, clinical confounders, and external validation are systematically evaluated.

September 8, 2026Non-Coding RNAOpen Access

A Transcriptome-Wide Analysis Nominates DIO3OS and C9orf139 as Survival-Associated Long Non-Coding RNAs in Glioblastoma

View Full Paper

Ask AI

Bookmark

To identify which long non-coding RNA associations with glioblastoma survival persist when standardized endpoints, clinical confounders, and external validation are systematically evaluated.
Conducted a joint transcriptome-wide discovery of overall survival in TCGA (n = 94 IDH-wildtype, temozolomide-treated primary GBM) and CPTAC-3 (total combined n = 282, 209 deaths), adjusting for MGMT promoter methylation, cellular composition, and expression subtype.
Evaluated progression-free interval using TCGA Pan-Cancer Clinical Data Resource definitions and tested nominated transcripts for external validation across two independent CGGA cohorts.
Assessed incremental discrimination via optimism-corrected change in C-index benchmarked against transcriptome-wide search expectations.
No lncRNA was associated with progression-free interval at a transcriptome-wide false-discovery rate below 0.05.
Joint overall survival discovery identified DIO3OS (hazard ratio 1.38 per standard deviation, 95% CI 1.20–1.58, FDR 0.022) and C9orf139 (FDR 0.065), which were independently significant in discovery cohorts after confounder adjustment.
Both nominated lncRNAs failed external validation with null and reversed point estimates in two independent CGGA cohorts and yielded modest incremental discrimination (optimism-corrected ΔC-index 0.07–0.11).

Discussion

No takes yet. Share an insight, caveat, or question.

Implication

Transcriptome-wide analysis uncovers candidate survival-associated lncRNAs in glioblastoma, highlighting the critical role of rigorous validation and confounder adjustment.

Cite This Study

Kim et al. (2026) studied this question.

synapsesocial.com/papers/6a9fd81458e84d0ff5b474d6 https://doi.org/10.3390/ncrna12050036

View Full Paper

Ask AI

Bookmark

Implication

Transcriptome-wide analysis uncovers candidate survival-associated lncRNAs in glioblastoma, highlighting the critical role of rigorous validation and confounder adjustment.

A Transcriptome-Wide Analysis Nominates DIO3OS and C9orf139 as Survival-Associated Long Non-Coding RNAs in Glioblastoma

Key Points

Discussion

Implication

Cite This Study

A Transcriptome-Wide Analysis Nominates DIO3OS and C9orf139 as Survival-Associated Long Non-Coding RNAs in Glioblastoma

Key Points

Discussion

Implication

Cite This Study

Also Consider

Also Consider