Cytogenetic analyses in 81 patients with brain gliomas: correlation with clinical outcome and morphological data
| Autor: | Libuse Babicka, Zuzana Zemanova, Filip Kramar, Petr Kozler, Petr Hrabal, Sarka Ransdorfova, Kyra Michalova |
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| Rok vydání: | 2007 |
| Předmět: |
Adult
Male Cancer Research Monosomy Adolescent Biology Gene mutation Loss of heterozygosity CDKN2A medicine Humans In Situ Hybridization Fluorescence Aged Chromosome 7 (human) medicine.diagnostic_test Brain Neoplasms Glioma Middle Aged Prognosis medicine.disease Neurology Oncology Cytogenetic Analysis Cancer research Female Neurology (clinical) Oligodendroglioma Trisomy Fluorescence in situ hybridization |
| Zdroj: | Journal of Neuro-Oncology. 84:201-211 |
| ISSN: | 1573-7373 0167-594X |
| DOI: | 10.1007/s11060-007-9358-7 |
| Popis: | Specific gene mutations, loss of heterozygosity, deletions and/or amplifications of entire chromosomal regions and gene silencing have been described in gliomas. 82 samples from 81 patients were investigated to detect the deletion of TP53, RB1, CDKN2A genes, deletion of 1p36 and 19q13.3 region, amplification of EGFR gene, trisomy of chromosome 7 and monosomy of chromosome 10 in glial cells. Dual-colour interphase fluorescence in situ hybridization (I-FISH) with locus-specific and/or chromosome enumeration DNA probes were used for cytogenetic analyses. In the study, molecular cytogenetic analyses were successfully performed in 74 patients (91.3%) and were uninformative in 7 only (8.7%). The cytogenetic analyses were correlated with morphological data and clinical outcome. I-FISH was the essential part of diagnostics. In comparison with the clinical data, the patients' age seems to be a factor more important for the overall survival, rather than cytogenetic findings in glial tumours. The combined deletion of 1p36 and 19q13.3 chromosomal regions predicts longer overall survival for patients with oligodendroglial tumours. |
| Databáze: | OpenAIRE |
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