title: Fermented Brown Rice Extract Stimulates BDNF Gene Transcription in C6 Glioma Cells: Possible Connection with HO-1 Expression.
abstract: Fermented brown rice with Aspergillus oryzae, designated as FBRA, is known to be commercially available dietary fiber-rich food, which is appreciated as prebiotics to improve intestinal microflora, and also shown to contain various biologically active substances including polyphenolic compounds. On the other hand, polyphenolic compounds have been suggested to stimulate the expression of brain-derived neurotrophic factor (BDNF) gene in connection with the expression of heme oxidase-1 (HO-1) gene in glial cells, thus resulting in the augmentation of BDNF production in the brain, thereby being anticipated to have a putative effect on the brain function. Then, the effect of FBRA extract on HO-1 and BDNF messenger ribonucleic acid (mRNA) levels in C6 glioma cells was examined, and the extract was shown to stimulate both HO-1 and BDNF gene transcription in the glioma cells. Further studies showed that the stimulatory effect of FBRA extract on BDNF gene transcription was almost completely suppressed by silencing HO-1 gene expression with an HO-1 antisense oligodeoxynucleotide and also inhibiting HO-1 activity with an inhibitor zinc protoporphyrin, thus suggesting that FBRA might have a potential ability to induce BDNF gene expression through HO-1 activity in glial cells.
authors: a Life Science Research Group , Shikoku University School of Health Sciences , Ohjin , Tokushima , Japan.
authors: Kyoji
authors: K
authors: Morita
authors: a Life Science Research Group , Shikoku University School of Health Sciences , Ohjin , Tokushima , Japan.|b Department of Food Science and Nutrition , Shikoku Junior College , Ohjin , Tokushima , Japan.
authors: Naoyoshi
authors: N
authors: Nishibori
authors: a Life Science Research Group , Shikoku University School of Health Sciences , Ohjin , Tokushima , Japan.
authors: Reina
authors: R
authors: Kishibuchi
authors: c Research and Development Division, Kohken Co. Ltd. , Tohbetsu, Ishikari-gun , Hokkaido , Japan.
authors: Mari
authors: M
authors: Itoh
authors: c Research and Development Division, Kohken Co. Ltd. , Tohbetsu, Ishikari-gun , Hokkaido , Japan.
authors: Yukiko
authors: Y
authors: Horie
authors: c Research and Development Division, Kohken Co. Ltd. , Tohbetsu, Ishikari-gun , Hokkaido , Japan.
authors: Hideyuki
authors: H
authors: Nemoto
mesh_terms: D000818:Animals; D019208:Brain-Derived Neurotrophic Factor / Q000235:genetics*; D045744:Cell Line, Tumor; D005285:Fermentation; D051547:Heme Oxygenase-1 / Q000378:metabolism*; D009457:Neuroglia; D012275:Oryza / Q000737:chemistry*; D010936:Plant Extracts / Q000494:pharmacology*; D011524:Protoporphyrins / Q000378:metabolism; D012333:RNA, Messenger / Q000378:metabolism; D051381:Rats; D014158:Transcription, Genetic / Q000187:drug effects*
chemical_list: D019208:Brain-Derived Neurotrophic Factor; D010936:Plant Extracts; D011524:Protoporphyrins; D012333:RNA, Messenger; C017803:zinc protoporphyrin; D051547:Heme Oxygenase-1
keywords: BDNF mRNA; FBRA extract; HO-1 mRNA; antisense oligodeoxynucleotide; glial cells