CPEB1 and astrocytoma (excluding glioblastoma): However, in the astrocytoma, because of the abnormally high expression of CASC2c, or aberrant low expression of miR-101 or the overexpression of CPEB1 as a result of hypomethylation status of its promoter, the balance of this regulatory complex of CASC2c, miR-101 and CPEB1 was broken.