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. 2016 Apr 26;4:16009. doi: 10.1038/boneres.2016.9

Figure 4.

Figure 4

Crosstalk between BMP, TGF-β and other signaling in the growth plate. In the epiphyseal growth plate, differentiating chondrocytes are organized into four layers, including resting zone (RZ), proliferation zone (PZ), hypertrophic zone (HZ), and calcified zone (CZ). The calcified zone was gradually replaced by the trabecular bone (TB). Positive regulating cytokines (→) and negative regulating cytokines (--|) of each zone are listed on the left adjacent to them. BMP, bone morphogenetic protein; FGF, fibroblast growth factor; IHH, Indian hedgehog; PTHrP, parathyroid hormone-related peptide; SHH, Sonic hedgehog; TGF-β, transforming growth factor-β.