PMID- 11995817 OWN - NLM STAT- MEDLINE DCOM- 20021030 LR - 20190910 IS - 0167-594X (Print) IS - 0167-594X (Linking) VI - 56 IP - 2 DP - 2002 Jan TI - Chromosome instability in malignant astrocytic tumors detected by fluorescence in situ hybridization. PG - 159-65 AB - Malignant tumors intrinsically manifest genetic instability, and consequently genetic aberrations successively accumulate in tumor cells as the tumor progresses. However, the relationship of genetic instability and biological behavior still remains to be investigated in malignant tumors. In the present investigation, the relationship between chromosomal instability and patient prognosis was studied in 19 malignant gliomas. Chromosomal instability was estimated by numerical variation in chromosomes 7, 10 and 17 which was measured by fluorescence in situ hybridization (FISH), and DNA ploidy was determined by laser scanning cytometry. The mean number of fractions was significantly higher in cases with DNA aneuploidy than in those with DNA diploidy. The tendency toward higher fractions in glioblastomas existed, although it did not reach statistical significance. Kaplan-Meier survival rate analysis demonstrated significantly lower survival rates in patients with higher fractions of chromosome 7 (>5) than others. Our results suggest that DNA aneuploidy in malignant gliomas reflects an underlying chromosomal instability, and that this instability is associated with clinical behavior. FAU - Nishizaki, Takafumi AU - Nishizaki T AD - Department of Neurosugery, Yamaguchi University School of Medicine, Japan. nishi-ygc@umin.u-tokyo.ac.jp FAU - Harada, Katsumi AU - Harada K FAU - Kubota, Hisashi AU - Kubota H FAU - Harada, Kei AU - Harada K FAU - Furuya, Tomoko AU - Furuya T FAU - Suzuki, Michiyasu AU - Suzuki M FAU - Sasaki, Kohsuke AU - Sasaki K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Neurooncol JT - Journal of neuro-oncology JID - 8309335 RN - 0 (DNA, Neoplasm) SB - IM MH - Adult MH - Aged MH - Aneuploidy MH - Astrocytoma/*genetics/mortality MH - *Chromosome Aberrations MH - *Chromosomes, Human, Pair 10 MH - *Chromosomes, Human, Pair 17 MH - *Chromosomes, Human, Pair 7 MH - DNA, Neoplasm/analysis MH - Diploidy MH - Female MH - Glioblastoma/*genetics/mortality MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Middle Aged MH - Prognosis EDAT- 2002/05/09 10:00 MHDA- 2002/11/01 04:00 CRDT- 2002/05/09 10:00 PHST- 2002/05/09 10:00 [pubmed] PHST- 2002/11/01 04:00 [medline] PHST- 2002/05/09 10:00 [entrez] AID - 10.1023/a:1014570720843 [doi] PST - ppublish SO - J Neurooncol. 2002 Jan;56(2):159-65. doi: 10.1023/a:1014570720843.