CCND1 and ependymoma: We quantified CCND1 mRNA and protein level in seven paired samples (5 supratentorial and 2 infratentorial tumors, including pre-& post-RT ependymomas tissue due to relapse of the same case) and found higher CCND1 level in recurrent tumors from 3 supratentorial and 2 infratentorial tumors (Figure 4A, 4B and 4C).