Gene expression profiling with oligonucleotide microarrays distinguishes World Health Organization grade of oligodendrogliomas

M. A. Watson, A. Perry, V. Budhjara, C. Hicks, W. D. Shannon, K. M. Rich

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

Oligodendrogliomas are the second most common type of glial neoplasm with distinct prognostic and therapeutic implications. Although refinements have led to improved clinical stratification, current grading schemes are still limited by subjective histopathological criteria. In this report, we have used oligonucleotide array technology to perform expression profiling in morphologically classic oligodendrogliomas. Expression information from ∼1100 genes divided tumors into two molecularly distinct groups that corresponded exactly to their previously assigned histological grades. Subsequent gene clustering identified a subset of 196 transcripts showing a common, differential expression pattern between tumor grades. A number of these genes have been associated with the maintenance of cytoarchitecture, cellular differentiation and maturation, immunogenicity, and chemotherapeutic resistance. These results demonstrate the utility of gene expression profiling as an objective, ancillary tool for grading oligodendrogliomas and a potential approach for classifying diffuse gliomas where histological assessment may be difficult or ambiguous.

Original languageEnglish
Pages (from-to)1825-1829
Number of pages5
JournalCancer research
Volume61
Issue number5
StatePublished - Mar 1 2001

Fingerprint

Dive into the research topics of 'Gene expression profiling with oligonucleotide microarrays distinguishes World Health Organization grade of oligodendrogliomas'. Together they form a unique fingerprint.

Cite this