Figure 5

Differentiation model of LepR+Runx2-GFPlow cells into osteoblasts. LepR+Runx2-GFPlow cells form multilayered structures along the bone surface in response to intermittent PTH treatment. In this process, the LepR+Ranx2-GFPlow cells increase the expression levels of Runx2, Osx and Col1 sequentially, and eventually differentiate into mature osteoblasts.