杉本 研
   Department     ,
   Position  
Article types 原著
Language English
Peer review Peer reviewed
Title Differential effects of pre-exercise on cancer cachexia-induced muscle atrophy in fast- and slow-twitch muscles.
Journal Formal name:FASEB journal : official publication of the Federation of American Societies for Experimental Biology
Abbreviation:FASEB J
ISSN code:15306860/08926638
Domestic / ForeginForegin
Volume, Issue, Page 34(11),14389-14406頁
Author and coauthor Tanaka Minoru, Sugimoto Ken, Fujimoto Taku, Xie Keyu, Takahashi Toshimasa, Akasaka Hiroshi, Yasunobe Yukiko, Takeya Yasushi, Yamamoto Koichi, Hirabayashi Takumi, Fujino Hidemi, Rakugi Hiromi
Publication date 2020/11
Summary We hypothesized that pre-exercise may effectively prevent cancer cachexia-induced muscle atrophy in both fast- and slow-twitch muscle types. Additionally, the fast-twitch muscle may be more affected by cancer cachexia than slow-twitch muscle. This study aimed to evaluate the effects of pre-exercise on cancer cachexia-induced atrophy and on atrophy in fast- and slow-twitch muscles. Twelve male Wistar rats were randomly divided into sedentary and exercise groups, and another 24 rats were randomly divided into control, pre-exercise, cancer cachexia induced by intraperitoneal injections of ascites hepatoma AH130 cells, and pre-exercise plus cancer cachexia groups. We analyzed changes in muscle mass and in gene and protein expression levels of major regulators and indicators of muscle protein degradation and synthesis pathways, angiogenic factors, and mitochondrial function in both the plantaris and soleus muscles. Pre-exercise inhibited muscle mass loss, rescued protein synthesis, prevented capillary regression, and suppressed hypoxia in the plantaris and soleus muscles. Pre-exercise inhibited mitochondrial dysfunction differently in fast- and slow-twitch muscles. These results suggested that pre-exercise has the potential to inhibit cancer-cachexia-induced muscle atrophy in both fast- and slow-twitch muscles. Furthermore, the different progressions of cancer-cachexia-induced muscle atrophy in fast- and slow-twitch muscles are related to differences in mitochondrial function.
DOI 10.1096/fj.202001330R
PMID 32892438