Isorhamnetin, A Flavonol Aglycone from Ginkgo biloba L., Induces Neuronal Differentiation of Cultured PC12 Cells: Potentiating the Effect of Nerve Growth Factor
Autor: | Ava J.Y. Guo, Roy Chi Yan Choi, Sherry Li Xu, Tina T. X. Dong, Ka-Wing Leung, Kevin Y. Zhu, Dan Bi, Hong Xu, Karl Wah Keung Tsim, David T W Lau |
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Rok vydání: | 2012 |
Předmět: |
Neurofilament
Article Subject biology Neurite medicine.drug_class Ginkgo biloba business.industry food and beverages lcsh:Other systems of medicine Pharmacology lcsh:RZ201-999 biology.organism_classification Neuroprotection chemistry.chemical_compound Aglycone Nerve growth factor Complementary and alternative medicine chemistry Estrogen medicine business Isorhamnetin Research Article |
Zdroj: | Evidence-based Complementary and Alternative Medicine : eCAM Evidence-Based Complementary and Alternative Medicine, Vol 2012 (2012) |
ISSN: | 1741-4288 |
Popis: | Flavonoids, a group of compounds mainly derived from vegetables and herbal medicines, share a chemical resemblance to estrogen, and indeed some of which have been used as estrogen substitutes. In searching for possible functions of flavonoids, the neuroprotective effect in brain could lead to novel treatment, or prevention, for neurodegenerative diseases. Here, different subclasses of flavonoids were analyzed for its inductive role in neurite outgrowth of cultured PC12 cells. Amongst the tested flavonoids, a flavonol aglycone, isorhamnetin that was isolated mainly from the leaves ofGinkgo bilobaL. showed robust induction in the expression of neurofilament, a protein marker for neurite outgrowth, of cultured PC12 cells. Although isorhamnetin by itself did not show significant inductive effect on neurite outgrowth of cultured PC12 cells, the application of isorhamnetin potentiated the nerve growth factor- (NGF-)induced neurite outgrowth. In parallel, the expression of neurofilaments was markedly increased in the cotreatment of NGF and isorhamnetin in the cultures. The identification of these neurite-promoting flavonoids could be very useful in finding potential drugs, or food supplements, for treating various neurodegenerative diseases, including Alzheimer’s disease and depression. |
Databáze: | OpenAIRE |
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