Aging brain actively shapes biology and progression of tumors
· News-MedicalA central focus is the two-way relationship between tumors and the nervous system. Research reviewed in the article indicates that glioma cells can interact functionally with neurons, including through neuron-to-tumor synapses and neurotransmitter signaling. At the same time, brain tumors and their treatment may promote senescence in nearby neurons and glial cells, potentially contributing to a feedback loop involving tumor progression, treatment resistance, and cognitive decline.
Rather than proposing an immediate clinical treatment strategy, the authors outline research directions for age-aware neuro-oncology. These include studying senescence-modulating approaches, neuroinflammation and blood-brain barrier biology, ion channels, neurotransmitter systems, and advanced patient-derived organoid models. The review notes that interventions specifically targeting aging-related mechanisms in brain tumors remain largely preclinical and require direct clinical evaluation.
The authors also emphasize that chronological age alone should not determine care for older people with brain tumors. Tumor molecular features, physiological fitness, frailty, cognitive reserve, neurological function, comorbidites, treatment tolerance, and quality of life should all inform clinical decision-making.
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