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The interactions of flavonoids within neuronal signalling pathways

Spencer, J.P.E. ORCID: https://orcid.org/0000-0003-2931-7274 (2007) The interactions of flavonoids within neuronal signalling pathways. Genes and Nutrition, 2 (3). pp. 257-273. ISSN 1555-8932

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To link to this item DOI: 10.1007/s12263-007-0056-z

Abstract/Summary

Emerging evidence suggests that dietary phytochemicals, in particular flavonoids, may exert beneficial effects in the central nervous system by protecting neurons against stress-induced injury, by suppressing neuroinflammation and by promoting neurocognitive performance, through changes in synaptic plasticity. It is likely that flavonoids exert such effects in neurons, through selective actions on different components within a number of protein kinase and lipid kinase signalling cascades, such as phosphatidylinositol-3 kinase (PI3K)/Akt, protein kinase C and mitogen-activated protein kinase. This review details the potential inhibitory or stimulatory actions of flavonoids within these pathways, and describes how such interactions are likely to affect cellular function through changes in the activation state of target molecules and/or by modulating gene expression. Although, precise sites of action are presently unknown, their abilities to: (1) bind to ATP binding sites on enzymes and receptors; (2) modulate the activity of kinases directly; (3) affect the function of important phosphatases; (4) preserve neuronal Ca2+ homeostasis; and (5) modulate signalling cascades lying downstream of kinases, are explored. Future research directions are outlined in relation to their precise site(s) of action within the signalling pathways and the sequence of events that allow them to regulate neuronal function in the central nervous system.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
Interdisciplinary centres and themes > Institute for Cardiovascular and Metabolic Research (ICMR)
ID Code:12977
Uncontrolled Keywords:flavonoid, neuron, MAPK, ERK, JNK, Akt, PI3K, neurodegeneration, ACTIVATED PROTEIN-KINASE, LOW-DENSITY-LIPOPROTEIN, BLOOD-BRAIN-BARRIER, NITRIC-OXIDE SYNTHASE, GINKGO-BILOBA EXTRACT, PHOSPHOINOSITIDE, 3-KINASE/AKT PATHWAY, INDUCED LIPID-PEROXIDATION, MAMMARY, EPITHELIAL-CELLS, CENTRAL-NERVOUS-SYSTEM, GREEN TEA CATECHINS

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