Research Article

Promoter Methylation of RASSF1A Associates to Adult Secondary Glioblastomas and Pediatric Glioblastomas

Table 2

Promoter hypermethylation and expression in cell lines.

Cell lineDiagnosisMethylationExpression

PTENMGMTRASSF1Ap14p16PTENMGMTRASSF1Ap14p16
T98GGBM * ++
LN-405GBM+−/+++
U118GBM * * §§§§§
U251GBM * * §§§§§
U87GBM * * +
MOG-G-CCMAIII * ++++
SW1088AIII * * −/+
SW1783AIII++++
GOS3A/O (II/III) * +

GBM: glioblastoma multiforme; AIII: anaplastic astrocytoma; A/O: astrocytoma/oligodendroglioma. ■: methylated; □: hemimethylated; +: expression; −/+: low expression; −: lack of expression/absence of methylation; *: nonanalyzed; §: nonstudied.