Mixed lactate and caffeine compound increases satellite cell activity and anabolic signals for muscle hypertrophy

Yoshimi Oishi, Hayato Tsukamoto, Takumi Yokokawa, Keisuke Hirotsu, Mariko Shimazu, Kenji Uchida, Hironori Tomi, Kazuhiko Higashida, Nobumasa Iwanaka, Takeshi Hashimoto

研究成果: Article

29 引用 (Scopus)

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We examined whether a mixed lactate and caffeine compound (LC) could effectively elicit proliferation and differentiation of satellite cells or activate anabolic signals in skeletal muscles. We cultured C2C12 cells with either lactate or LC for 6 h. We found that lactate significantly increased myogenin and follistatin protein levels and phosphorylation of P70S6K while decreasing the levels of myostatin relative to the control. LC significantly increased protein levels of Pax7, MyoD, and Ki67 in addition to myogenin, relative to control. LC also significantly increased follistatin expression relative to control and stimulated phosphorylation of mTOR and P70S6K. In an in vivo study, male F344/DuCrlCrlj rats were assigned to control (Sed, n = 10), exercise (Ex, n = 12), and LC supplementation (LCEx, n = 13) groups. LC was orally administered daily. The LCEx and Ex groups were exercised on a treadmill, running for 30 min at low intensity every other day for 4 wk. The LCEx group experienced a significant increase in the mass of the gastrocnemius (GA) and tibialis anterior (TA) relative to both the Sed and Ex groups. Furthermore, the LCEx group showed a significant increase in the total DNA content of TA compared with the Sed group. The LCEx group experienced a significant increase in myogenin and follistatin expression of GA relative to the Ex group. These results suggest that administration of LC can effectively increase muscle mass concomitant with elevated numbers of myonuclei, even with low-intensity exercise training, via activated satellite cells and anabolic signals.

元の言語English
ページ(範囲)742-749
ページ数8
ジャーナルJournal of Applied Physiology
118
発行部数6
DOI
出版物ステータスPublished - 2015 3 15

ASJC Scopus subject areas

  • Physiology
  • Physiology (medical)

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    Oishi, Y., Tsukamoto, H., Yokokawa, T., Hirotsu, K., Shimazu, M., Uchida, K., Tomi, H., Higashida, K., Iwanaka, N., & Hashimoto, T. (2015). Mixed lactate and caffeine compound increases satellite cell activity and anabolic signals for muscle hypertrophy. Journal of Applied Physiology, 118(6), 742-749. https://doi.org/10.1152/japplphysiol.00054.2014