Research Paper Volume 12, Issue 14 pp 14830—14848

FGF2-induced PI3K/Akt signaling evokes greater proliferation and adipogenic differentiation of human adipose stem cells from breast than from abdomen or thigh

Figure 3. Different proliferation and differentiation abilities of haASCs, htASCs and hbASCs in vivo. (A) Regenerative adipose tissue macroscopic findings. Wet weights of regenerative adipose tissue in htASCs, haASCs, and hbASCs. *P<0.05. (B) H&E staining of the regenerative tissue after 12 weeks. The transplants derived from the three ASC types consisted predominantly of mature adipose tissue. Magnification, 100×. (C) GFP staining of the regenerative tissue after 12 weeks. In contrast to htASC or haASC tissue, GFP+ hbASC tissue contained larger Oil Red O-positive lipid droplets in the cytoplasm. GFP+ cells were detected in regenerative mature adipose tissue, indicating that these mature adipocytes had differentiated from GFP-labeled ASCs. Magnification, 100×. (D) Quantitative measurement of adipogenesis ability. Adipocyte density and intracellular lipid content were higher in hbASC tissue than in htASC or haASC tissue. *P < 0.05,**P < 0.05.