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Inaccurate interpretation of hypoxia signatures from transcriptomic analyses in neuro-oncology
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DOI：10.1016/j.neo.2026.101327.png)
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Abstract
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We aim to highlight problems with the biological interpretation of computationally-derived hypoxia signatures for neuro-oncology research. By reviewing important experimental work in the field, we discuss common misinterpretations of the concepts of normoxia and hypoxia. In fact, the concentration of oxygen in the adult brain is in the range of 1-7%. Unfortunately, this oxygen concentration range is often mistakenly considered hypoxic in neuro-oncology experiments, although it should be considered physioxic. Further, given the lack of a universal hypoxic signature, we stress the importance of deriving cell type-specific hypoxic signatures using carefully-executed experiments.
Keywords:
Hypoxia
Brain
Brain tumors
Bioinformatics
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