Tumor location and growth pattern correlate with genetic signature in oligodendroglial neoplasms

Magdalena C. Zlatescu, Ali Reza TehraniYazdi, Hikaru Sasaki, Joseph F. Megyesi, Rebecca Betensky, David N. Louis, J. Gregory Cairncross

Research output: Contribution to journalArticle

Abstract

Molecular genetic subsets of anaplastic oligodendroglioma behave in biologically distinct ways, in both their rates of growth and their responses to standard therapies. In a series of 64 cases, we evaluated whether allelic loss of chromosomal arms 1p and 19q, an early molecular event in the genesis of chemosensitive oligodendrogliomas, is related to tumor location and extent of tumor spread in the brain. We observed that tumor genotype was closely associated with tumor location (P < 0.001). Anaplastic oligodendrogliomas located in the frontal, parietal, and occipital lobes were significantly more likely to harbor allelic loss of chromosomal arms 1p and 19q than histologically indistinguishable tumors arising in the temporal lobe, insula, and diencephalon (P < 0.001). In addition, loss of heterozygosity for 1p and 19q was significantly associated with a bilateral pattern of growth (P = 0.037); all seven bilaterally distributed anaplastic oligodendrogliomas had 1p and 19q allelic loss. We conclude, therefore, that molecular subtypes of oligodendrogliomas may arise preferentially in certain lobes of the brain and have differential patterns of growth, with tumors having allelic loss of chromosomes 1p and 19q occurring most frequently in the frontal lobes and having a tendency for widespread growth across the midline. These findings encourage inquiries into the biological basis of such marked differences and already have implications for the current management of these neoplasms.

Original languageEnglish (US)
Pages (from-to)6713-6715
Number of pages3
JournalCancer Research
Volume61
Issue number18
StatePublished - Sep 15 2001

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Oligodendroglioma
Loss of Heterozygosity
Growth
Neoplasms
Frontal Lobe
Occipital Lobe
Diencephalon
Parietal Lobe
Brain
Temporal Lobe
Molecular Biology
Chromosomes
Genotype

ASJC Scopus subject areas

  • Oncology
  • Cancer Research

Cite this

Zlatescu, M. C., TehraniYazdi, A. R., Sasaki, H., Megyesi, J. F., Betensky, R., Louis, D. N., & Cairncross, J. G. (2001). Tumor location and growth pattern correlate with genetic signature in oligodendroglial neoplasms. Cancer Research, 61(18), 6713-6715.

Tumor location and growth pattern correlate with genetic signature in oligodendroglial neoplasms. / Zlatescu, Magdalena C.; TehraniYazdi, Ali Reza; Sasaki, Hikaru; Megyesi, Joseph F.; Betensky, Rebecca; Louis, David N.; Cairncross, J. Gregory.

In: Cancer Research, Vol. 61, No. 18, 15.09.2001, p. 6713-6715.

Research output: Contribution to journalArticle

Zlatescu, MC, TehraniYazdi, AR, Sasaki, H, Megyesi, JF, Betensky, R, Louis, DN & Cairncross, JG 2001, 'Tumor location and growth pattern correlate with genetic signature in oligodendroglial neoplasms', Cancer Research, vol. 61, no. 18, pp. 6713-6715.
Zlatescu MC, TehraniYazdi AR, Sasaki H, Megyesi JF, Betensky R, Louis DN et al. Tumor location and growth pattern correlate with genetic signature in oligodendroglial neoplasms. Cancer Research. 2001 Sep 15;61(18):6713-6715.
Zlatescu, Magdalena C. ; TehraniYazdi, Ali Reza ; Sasaki, Hikaru ; Megyesi, Joseph F. ; Betensky, Rebecca ; Louis, David N. ; Cairncross, J. Gregory. / Tumor location and growth pattern correlate with genetic signature in oligodendroglial neoplasms. In: Cancer Research. 2001 ; Vol. 61, No. 18. pp. 6713-6715.
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