HDAC11 and anaplastic oligodendroglioma: HDAC11 displayed 4.20-fold downregulation in anaplastic oligoastrocytoma (n = 4) (p = 1.09E-05), and 3.93-fold downregulation in anaplastic oligodendroglioma (n = 23) in the French 2005 study (p = 7.32E-06) (French et al., 2005).