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Microbiol Res. 2012 Apr 20;167(4):231-7. doi: 10.1016/j.micres.2011.09.003. Epub 2011 Oct 19.

Estrogen-like activity and dual roles in cell signaling of an Agaricus blazei Murrill mycelia-dikaryon extract.

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1
International Research and Educational Institute for Integrated Medical Sciences (IREIIMS), Tokyo Women's Medical University, Tokyo, Japan.

Abstract

Agaricus blazei (A. blazei) Murrill mycelia-dikaryon has attracted the attention of scientists and clinicians worldwide owing to its potential for the treatment of cancer. However, little is known about its effect on other pathologies. This study sought to extend the potential medical usefulness of A. blazei for preventing vascular damage and to unravel its mechanism of action. The A. blazei extract showed estrogen-like activity in both gene expression profiling and a luciferase assay. Indeed, the extract inhibited oxidized low-density lipoprotein-stimulated activation of Erk1/2, Akt and p38 in HUVECs and macrophage-derived TIB-67 cells. Moreover, the extract enhanced transcription of the glutathione peroxidase 3 (GPX3), α-synuclein (SNCA) and endothelial nitrogen-oxide synthase (eNOS) genes. Furthermore, atherosclerotic lesions in rabbits were reduced by intake of A. blazei powder. Therefore, A. blazei may be useful for preventing atherosclerosis via dual roles in cell signaling, suppression of macrophage development and the recovery of endothelial cells from vascular damage.

PMID:
22015258
DOI:
10.1016/j.micres.2011.09.003
[Indexed for MEDLINE]
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