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Oxidative stress has been implicated in the development of several inflammatory diseases such as periodontal disease. However, the anti-oxidative effect of food-derived bioactive peptides in gingival epithelial cells (GECs) is unknown. Therefore, we examined the bioactivity of the peptides in GECs. Design: Food-derived peptide fractionations derived from rice bran, rice endosperm, corn, and soy were screened for anti-oxidative effects using anti-oxidant response element (ARE)-luciferase–transfected HEK 293 cells. The induction of anti-oxidation–related genes and proteins in GECs by the fractions were examined by quantitative PCR and Western blotting, respectively. Then, the fraction-mediated anti-oxidative effects were examined by measuring intracellular reactive oxygen species (ROS) levels using flow cytometry. Furthermore, the anti-oxidative response-related cellular signaling pathways were analyzed via Western blotting. 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米糠由来のタンパク分画は歯肉上皮細胞におけるSFN誘導性の抗酸化活性を増強させる
http://hdl.handle.net/10191/0002000635
http://hdl.handle.net/10191/000200063587f7258f-e334-4054-8da1-b7bef4d4be44
名前 / ファイル | ライセンス | アクション |
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本文 (2.84MB)
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要旨 (391KB)
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Item type | 学位論文 / Thesis or Dissertation(1) | |||||||||
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公開日 | 2022-07-25 | |||||||||
タイトル | ||||||||||
言語 | en | |||||||||
タイトル | Rice bran-derived protein fractions enhance sulforaphane-induced anti-oxidative activity in gingival epithelial cells | |||||||||
タイトル | ||||||||||
言語 | ja | |||||||||
タイトル | 米糠由来のタンパク分画は歯肉上皮細胞におけるSFN誘導性の抗酸化活性を増強させる | |||||||||
言語 | ||||||||||
言語 | eng | |||||||||
キーワード | ||||||||||
言語 | en | |||||||||
主題Scheme | Other | |||||||||
主題 | Gingival epithelial cells | |||||||||
キーワード | ||||||||||
言語 | en | |||||||||
主題Scheme | Other | |||||||||
主題 | Periodontitis | |||||||||
キーワード | ||||||||||
言語 | en | |||||||||
主題Scheme | Other | |||||||||
主題 | Oxidative stress | |||||||||
資源タイプ | ||||||||||
資源 | http://purl.org/coar/resource_type/c_db06 | |||||||||
タイプ | doctoral thesis | |||||||||
アクセス権 | ||||||||||
アクセス権 | open access | |||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
著者 |
峯尾, 修平
× 峯尾, 修平
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抄録 | ||||||||||
内容記述タイプ | Abstract | |||||||||
内容記述 | Objective: Food-derived bioactive peptides have been reported to exhibit various beneficial effects, including anti-microbial, anti-inflammatory, and anti-oxidant properties. Oxidative stress has been implicated in the development of several inflammatory diseases such as periodontal disease. However, the anti-oxidative effect of food-derived bioactive peptides in gingival epithelial cells (GECs) is unknown. Therefore, we examined the bioactivity of the peptides in GECs. Design: Food-derived peptide fractionations derived from rice bran, rice endosperm, corn, and soy were screened for anti-oxidative effects using anti-oxidant response element (ARE)-luciferase–transfected HEK 293 cells. The induction of anti-oxidation–related genes and proteins in GECs by the fractions were examined by quantitative PCR and Western blotting, respectively. Then, the fraction-mediated anti-oxidative effects were examined by measuring intracellular reactive oxygen species (ROS) levels using flow cytometry. Furthermore, the anti-oxidative response-related cellular signaling pathways were analyzed via Western blotting. Results: Although treatment with the food-derived peptides alone did not activate anti-oxidative responses, co-treatment with sulforaphane (SFN; a potent anti-oxidant) and certain food-derived peptides enhanced anti-oxidative responses in ARE-luciferase–transfected HEK 293 cells. The fractions augmented heme oxygenase-1 mRNA and protein expression in GECs. The percentage of ROS-positive cells was significantly decreased by co-treatment with SFN and peptide fractions derived from rice bran. Furthermore, the involvement of both nuclear factor erythroid 2-related factor 2 (Nrf2) and extracellular signal-regulated kinase (ERK) in the enhancement of anti-oxidative responses was demonstrated by Western blotting. Conclusions: Peptides derived from rice bran enhances SFN-induced anti-oxidative responses in GECs through ERK–Nrf2–ARE signaling. | |||||||||
言語 | en | |||||||||
内容記述 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | Archives of Oral Biology. 2021, 129, 105215. | |||||||||
言語 | en | |||||||||
DOI | ||||||||||
識別子タイプ | DOI | |||||||||
関連識別子 | https://doi.org/10.1016/j.archoralbio.2021.105215 | |||||||||
権利 | ||||||||||
言語 | en | |||||||||
権利情報 | © 2021 Elsevier Ltd. All rights reserved. | |||||||||
学位名 | ||||||||||
言語 | ja | |||||||||
学位名 | 博士(歯学) | |||||||||
学位授与機関 | ||||||||||
学位授与機関識別子Scheme | kakenhi | |||||||||
学位授与機関識別子 | 13101 | |||||||||
言語 | ja | |||||||||
学位授与機関名 | 新潟大学 | |||||||||
言語 | en | |||||||||
学位授与機関名 | Niigata University | |||||||||
学位授与年月日 | ||||||||||
学位授与年月日 | 2022-03-23 | |||||||||
学位授与番号 | ||||||||||
学位授与番号 | 甲第5019号 | |||||||||
学位記番号 | ||||||||||
内容記述タイプ | Other | |||||||||
内容記述 | 新大院博(歯)第505号 | |||||||||
言語 | ja |