7,8-Dihydroxyflavone is a direct inhibitor of human and murine pyridoxal phosphatase
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View abstract on PubMed
Summary
This summary is machine-generated.Researchers identified 7,8-dihydroxyflavone (7,8-DHF) as a potent inhibitor of pyridoxal 5'-phosphate phosphatase (PDXP). This discovery offers new insights into vitamin B6 metabolism and potential therapeutic strategies for cognitive impairment.
Area Of Science
- Neuroscience
- Biochemistry
- Pharmacology
Background
- Vitamin B6 deficiency is associated with cognitive impairment, but mechanisms are unclear.
- Pyridoxal 5 -phosphate phosphatase (PDXP) regulates active vitamin B6 (PLP).
- Lack of PDXP inhibitors hinders research into vitamin B6-related pathologies.
Purpose Of The Study
- To identify pharmacological inhibitors of PDXP.
- To investigate the role of PDXP in age-dependent vitamin B6 decline in the brain.
- To explore 7,8-dihydroxyflavone (7,8-DHF) as a PDXP inhibitor.
Main Methods
- Small-molecule screening
- Protein crystallography
- Biolayer interferometry
- Neuronal assays
Main Results
- Identified 7,8-DHF as a direct, potent, and reversible PDXP inhibitor.
- Demonstrated that 7,8-DHF increases PLP levels in mouse hippocampal neurons.
- Validated PDXP as a druggable target for modulating vitamin B6 levels.
Conclusions
- 7,8-DHF is a novel PDXP inhibitor offering mechanistic insights into its brain effects.
- PDXP inhibition represents a potential therapeutic strategy for cognitive disorders.
- This work advances understanding of vitamin B6 metabolism in neurological health.
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