Figure 5.
Effect of Fst overexpression on AdipoQ/FGF21/pAMPK pathway and FGF21 target genes. Western blot analysis of key proteins in Epi and SC adipose tissues from WT and Fst-Tg mice (A), and recombinant Fst protein (0.5 µg/ml) or Fst-enriched supernatant treatment of differentiated 3T3-L1 cells (B) using 100 µg of total tissue or cell lysates. Real-time quantitative gene expression analysis of FGF21, its receptors (Fgfr1-r3) and target genes in Epi (C), and SC (D) adipose tissues obtained from 10-week old WT and Fst-Tg mice. Data are expressed as mean ± SD. *P≤0.05, **P≤0.01, and ***P≤0.001 (n=3).
Abbreviations: WT, wild type; Fst-Tg, follistatin transgenic; DM, differentiation medium; AdipoQ, adiponectin; FGF, fibroblast growth factor; AMPK, AMP-activated protein kinase; PGC, peroxisome proliferator-activated receptor-gamma coactivator; SirT1, sirtuin1; GADPH, glyceraldehyde 3-phosphate dehydrogenase; Epi, epididymal; SC, subcutaneous.