DUX4L8 and diffuse astrocytoma: For example, gene DUX2 (AAGGGGTGGA tag) expression was detected only 3 times (on a minimum level) in 492 SAGE catalogues representing cell and tissue samples in a variety of physiological and pathological conditions: namely, in GSM383692 SAGE catalogue (astrocytoma grade II [25]), GSM383867 SAGE catalogue (colon carcinoma cell line [17, 23]), and GSM383928 SAGE catalogue (ovary preneoplasia cell line [26]).