Aberrant methylation in the promoter region of the reduced folate carrier gene is a potential mechanism of resistance to methotrexate in primary central nervous system lymphomas

Abstract excerpt

We investigated the prevalence and prognostic role of CpG island methylation of the reduced folate carrier (RFC) gene promoter region in primary central nervous system lymphoma (PCNSL) in immunocompetent patients. Genomic DNA from 40 PCNSL was used for methylation-specific polymerase chain reaction and bisulphite genomic sequencing of the RFC promoter region. Human immunodeficiency virus-negative systemic diffuse...

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