Lactate Stimulates a Potential for Hypertrophy and Regeneration of Mouse Skeletal Muscle
by
Yoshitaka Ohno 1, Koki Ando 1, Takafumi Ito 1, Yohei Suda 1, Yuki Matsui 1, Akiko Oyama 1, Hikari Kaneko 1, Shingo Yokoyama 1, Tatsuro Egawa 2
and Katsumasa Goto 1,3,*
Yoshitaka Ohno 1, Koki Ando 1, Takafumi Ito 1, Yohei Suda 1, Yuki Matsui 1, Akiko Oyama 1, Hikari Kaneko 1, Shingo Yokoyama 1, Tatsuro Egawa 2 and Katsumasa Goto 1,3,*
1
Laboratory of Physiology, School of Health Sciences, Toyohashi SOZO University, Toyohashi 440-8511, Japan
2
Laboratory of Sports and Exercise Medicine, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan
3
Department of Physiology, Graduate School of Health Sciences, Toyohashi SOZO University, Toyohashi 440-8511, Japan
*
Author to whom correspondence should be addressed.
Nutrients 2019, 11(4), 869; https://doi.org/10.3390/nu11040869
Received: 16 March 2019 / Revised: 14 April 2019 / Accepted: 15 April 2019 / Published: 17 April 2019
(This article belongs to the Special Issue Nutrition for Musculoskeletal Health)
The effects of lactate on muscle mass and regeneration were investigated using mouse skeletal muscle tissue and cultured C2C12 cells. Male C57BL/6J mice were randomly divided into (1) control, (2) lactate (1 mol/L in distilled water, 8.9 mL/g body weight)-administered, (3) cardio toxin (CTX)-injected (CX), and (4) lactate-administered after CTX-injection (LX) groups. CTX was injected into right tibialis anterior (TA) muscle before the oral administration of sodium lactate (five days/week for two weeks) to the mice. Oral lactate administration increased the muscle weight and fiber cross-sectional area, and the population of Pax7-positive nuclei in mouse TA skeletal muscle. Oral administration of lactate also facilitated the recovery process of CTX-associated injured mouse TA muscle mass accompanied with a transient increase in the population of Pax7-positive nuclei. Mouse myoblast-derived C2C12 cells were differentiated for five days to form myotubes with or without lactate administration. C2C12 myotube formation with an increase in protein content, fiber diameter, length, and myo-nuclei was stimulated by lactate. These observations suggest that lactate may be a potential molecule to stimulate muscle hypertrophy and regeneration of mouse skeletal muscle via the activation of muscle satellite cells.
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Keywords:
lactate; skeletal muscle; hypertrophy; regeneration; muscle satellite cell
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MDPI and ACS Style
Ohno, Y.; Ando, K.; Ito, T.; Suda, Y.; Matsui, Y.; Oyama, A.; Kaneko, H.; Yokoyama, S.; Egawa, T.; Goto, K. Lactate Stimulates a Potential for Hypertrophy and Regeneration of Mouse Skeletal Muscle. Nutrients 2019, 11, 869.
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