In our study, FAK (PTK2) gene expression was found significantly increased 4.32-fold in anaplastic meningiomas compared with arachnoidal tissue by qRT-PCR (Figure 3B), and both expression and phosphorylation of FAK protein evidently enhanced in anaplastic meningiomas when compared with either brain arachnoidal tissue or fibroblastic meningiomas (Figure 3D). The gene discussed is PTK2; the disease is meningioma.