Title : O6-methyl-guanine-DNA methyltransferase methylation in serum and tumor DNA predicts response to 1,3-bis(2-chloroethyl)-1-nitrosourea but not to temozolamide plus cisplatin in glioblastoma multiforme.

Pub. Date : 2003 Apr

PMID : 12684420






5 Functional Relationships(s)
Download
Sentence
Compound Name
Protein Name
Organism
1 O6-methyl-guanine-DNA methyltransferase methylation in serum and tumor DNA predicts response to 1,3-bis(2-chloroethyl)-1-nitrosourea but not to temozolamide plus cisplatin in glioblastoma multiforme. Carmustine O-6-methylguanine-DNA methyltransferase Homo sapiens
2 PURPOSE: In glioblastoma multiforme (GBM), the cytotoxic effect of 1,3-bis(2-chloroethyl)-1-nitrosourea (BCNU) and temozolamide is dependent on O(6) alkylation, which correlates inversely with expression of the DNA repair enzyme O(6)-methyl-guanine-DNA methyltransferase (MGMT). Carmustine O-6-methylguanine-DNA methyltransferase Homo sapiens
3 EXPERIMENTAL DESIGN: Using MSP assay, we assessed the methylation of MGMT, p16, DAPK, and RASSF1A in tumor and serum DNA from 28 GBM patients treated with BCNU or with temozolamide plus cisplatin. Carmustine O-6-methylguanine-DNA methyltransferase Homo sapiens
4 In the 16 patients treated with temozolamide plus cisplatin, no significant correlation between MGMT methylation status and response was observed, whereas in BCNU-treated patients, a significant difference was observed in favor of those with methylated MGMT. Carmustine O-6-methylguanine-DNA methyltransferase Homo sapiens
5 Serum MGMT methylation predicted response and time to progression in BCNU-treated GBM patients. Carmustine O-6-methylguanine-DNA methyltransferase Homo sapiens