The Nexus of Stemness, Telomere Stability, and Metabolic Reprogramming in Glioblastoma: Foundations of Tumor...

Area of Science:

• Neuro-oncology
• Cancer Stem Cell Biology
• Molecular Oncology

Background:

• Glioblastoma (GBM) is an aggressive brain tumor characterized by therapy resistance and inevitable recurrence.
• Glioma stem-like cells (GSCs) are central to GBM's persistence, exhibiting self-renewal, plasticity, and stress resistance.
• The molecular underpinnings of GSC long-term tumor-propagating capacity are not fully understood.

Purpose of the Study:

• To propose the
• Triadic Nexus
• framework integrating GSC stemness, telomere maintenance, and metabolic reprogramming.
• To synthesize recent advances in understanding GBM recurrence and therapy resistance.

Main Methods:

• Review of current literature on GSC biology, telomere maintenance (telomerase vs. ALT), and metabolic reprogramming in GBM.
• Integration of findings from single-cell, spatial, and multi-omics studies.
• Conceptual framework development based on interdependent regulatory systems.

Main Results:

• GSC stemness, telomere maintenance, and metabolic reprogramming function as a self-reinforcing regulatory system (the Triadic Nexus).
• Telomere maintenance pathways (telomerase vs. ALT) differentially impact genomic stability, immune signaling, and metabolism.
• Metabolic plasticity influences GSC stemness and telomere stress responses, collectively driving therapy resistance and recurrence.

Conclusions:

• The Triadic Nexus provides a systems-level framework for understanding GBM persistence.
• Targeting this interconnected system offers potential for novel combinatorial therapies and biomarker development.
• Understanding telomere and metabolic signatures can guide patient stratification and next-generation therapeutic interventions for glioblastoma.