The early osteogenic differentiation potential of hASCs cultured in BM, OM, and AM in the presence or absence of the FAK, ROCK, and ERK inhibitors was assessed by quantitative real-time reverse transcriptase polymerase chain reaction analysis of the bone associated marker gene RUNX2A (Figure 3(a)) and by quantitative activity assay of ALP (Figure 3(b)) which is an early marker of osteogenesis [35]. Here, PTK2 is linked to ocular melanoma.