Exercise Training Enhances Tumor Necrosis Factor-α–Induced Expressions of Anti-Apoptotic Genes without Alterations in Caspase-3 Activity in Rat Epididymal Adipocytes
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- Sakurai Takuya
- Department of Kinesiology, Graduate School of Science, Tokyo Metropolitan University Department of Molecular Predictive Medicine and Sport Science, Kyorin University, School of Medicine
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- Takei Megumi
- Department of Kinesiology, Graduate School of Science, Tokyo Metropolitan University
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- Ogasawara Junetsu
- Department of Kinesiology, Graduate School of Science, Tokyo Metropolitan University
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- Watanabe Naoto
- Department of Pathology, Sasaki Institute
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- Sampei Minori
- Department of Kinesiology, Graduate School of Science, Tokyo Metropolitan University
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- Yoshida Midori
- Department of Pathology, Sasaki Institute
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- Nakae Dai
- Department of Pathology, Sasaki Institute
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- Sakurai Tomonobu
- Department of Kinesiology, Graduate School of Science, Tokyo Metropolitan University
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- Nakano Norihiko
- Department of Molecular Predictive Medicine and Sport Science, Kyorin University, School of Medicine
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- Kizaki Takako
- Department of Molecular Predictive Medicine and Sport Science, Kyorin University, School of Medicine
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- Ohno Hideki
- Department of Molecular Predictive Medicine and Sport Science, Kyorin University, School of Medicine
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- Izawa Tetsuya
- Department of Kinesiology, Graduate School of Science, Tokyo Metropolitan University
書誌事項
- タイトル別名
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- Exercise Training Enhances Tumor Necrosis Factor アルファ Induced Expressions of Anti Apoptotic Genes without Alterations in Caspase 3 Activity in Rat Epididymal Adipocytes
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The effect of exercise training on tumor necrosis factor-α (TNF-α) signaling was investigated in rat epididymal adipocytes. Incubation of isolated adipocytes with TNF-α (20 ng/ml) for 5 h enhanced the expression of the inhibitor apoptosis protein 2 (IAP2) gene without any enhancement of caspase-3 activity in both the sedentary control (C) and exercise-trained (TR) groups. However, the ability of TNF-α to enhance IAP2 gene expression was significantly greater in TR than in C rats. The basal expression of the IκB kinase β (IKK β) gene and that of the BCL-xL gene were also higher in TR than in C rats. Mn-superoxidedismutase contents in adipocytes were higher in TR than in C rats. Moreover, no apoptotic nucleuses of adipocytes in response to acute exercise were observed in either group at least up to 5 h after exercise. Exercise training also enhanced the inhibitory effect of TNF-α on the gene expression of the fatty acid synthase (FAS), a lipogenic enzyme, suggesting that fatty acid synthesis may be reduced. Thus, exercise training enhanced TNF-α signaling directed toward the expressions of survival signals and the suppression of FAS gene expression.<br>
収録刊行物
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- The Japanese Journal of Physiology
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The Japanese Journal of Physiology 55 (3), 181-189, 2005
一般社団法人 日本生理学会
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詳細情報 詳細情報について
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- CRID
- 1390001205043672192
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- NII論文ID
- 10016882495
- 130004435929
- 130005482451
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- NII書誌ID
- AA00691224
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- ISSN
- 18811396
- 0021521X
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- NDL書誌ID
- 7715811
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可