A radioisotope-nondependent high-sensitivity method for measuring the activity of glioblastoma-related O(6)-methylguanine DNA methyltransferase.
Anal Biochem
; 480: 82-4, 2015 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-25173514
ABSTRACT
O(6)-Methylguanine DNA methyltransferase (MGMT) cancels the anticancer effect of temozolomide (drug for glioblastoma), which introduces methylation to DNA. Therefore, developing an MGMT inhibitor is a promising strategy for the treatment of this cancer. For this purpose, a sensitive detection method that does not depend on the conventional radioisotope (RI) method was developed. This was realized by a fluorescence-based method that measured the amount of cleavable restriction sites demethylated by the action of MGMT; this method was enhanced by introducing a polymerase chain reaction (PCR) amplification step. As an assay of enzyme activity, 20-fold higher sensitivity (subnanomolar) was attained compared with our and others' fluorescence-based approaches.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Reação em Cadeia da Polimerase
/
Glioblastoma
/
O(6)-Metilguanina-DNA Metiltransferase
/
Fluorescência
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
En
Revista:
Anal Biochem
Ano de publicação:
2015
Tipo de documento:
Article
País de afiliação:
Japão