Priority Research Paper Volume 13, Issue 11 pp 14557—14570

GRSF1 deficiency in skeletal muscle reduces endurance in aged mice

Expression of GRSF1 across myogenesis. (A) RT-qPCR analysis of GRSF1 mRNA levels in proliferating (0 h) and differentiating (24-120 h) human myoblasts; n=3. GRSF1 mRNA levels were normalized to the levels of GAPDH mRNA. (B) Western blot analysis of the levels of GRSF1 at the indicated times during differentiation; n=2. (C) Immunofluorescence detection of GRSF1 (green) and mitochondria (red) in proliferating myoblasts and differentiating myotubes. Arrowheads indicate GRSF1 signals; n=3. Scale bar, 50 μm.

Figure 1. Expression of GRSF1 across myogenesis. (A) RT-qPCR analysis of GRSF1 mRNA levels in proliferating (0 h) and differentiating (24-120 h) human myoblasts; n=3. GRSF1 mRNA levels were normalized to the levels of GAPDH mRNA. (B) Western blot analysis of the levels of GRSF1 at the indicated times during differentiation; n=2. (C) Immunofluorescence detection of GRSF1 (green) and mitochondria (red) in proliferating myoblasts and differentiating myotubes. Arrowheads indicate GRSF1 signals; n=3. Scale bar, 50 μm.