PMID- 23861470 OWN - NLM STAT- MEDLINE DCOM- 20140320 LR - 20211021 IS - 1523-5866 (Electronic) IS - 1522-8517 (Print) IS - 1522-8517 (Linking) VI - 15 IP - 9 DP - 2013 Sep TI - Co-polysomy of chromosome 1q and 19p predicts worse prognosis in 1p/19q codeleted oligodendroglial tumors: FISH analysis of 148 consecutive cases. PG - 1244-50 LID - 10.1093/neuonc/not092 [doi] AB - BACKGROUND: This study aimed to evaluate the prognostic significance of co-polsomy of chromosome 1q and 19p in 1p/19q codeleted oligodendroglial tumors (ODGs). METHODS: In a series of 148 ODGs with 1p/19q deletion, co-polysomy of 1q and 19p was detected by fluorescence in situ hybridization (FISH). Log-rank analysis and Cox regression methods were used to compare Kaplan-Meier plots and identify factors associated with worse prognosis. RESULTS: There were 104 (70.3%) low-grade ODGs and 44 (29.7%) high-grade ODGs. Co-polysomy was independently associated with shorter progression-free survival and overall survival in 1p/19q codeleted ODGs, irrespective of tumor grades. The odds ratio of without and with co-polysomy was 0.263 (95% confidence interval [CI], 0.089-0.771; P = .015) for progression-free survival and 0.213 (95% CI, 0.060-0.756; P = .017) for overall survival. Subgroup analysis confirmed this trend in both low-grade and high-grade ODGs, although the P value for high-grade ODGs was marginally significant. CONCLUSIONS: Co-polysomy of 1q and 19p could be used as a marker to independently predict worse prognoses and guide individual therapy in 1p/19q codeleted ODGs. FAU - Ren, Xiaohui AU - Ren X AD - Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, China. FAU - Jiang, Haihui AU - Jiang H FAU - Cui, Xiangli AU - Cui X FAU - Cui, Yong AU - Cui Y FAU - Ma, Jun AU - Ma J FAU - Jiang, Zhongli AU - Jiang Z FAU - Sui, Dali AU - Sui D FAU - Lin, Song AU - Lin S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130716 PL - England TA - Neuro Oncol JT - Neuro-oncology JID - 100887420 RN - 0 (Biomarkers) SB - IM MH - Adult MH - Aged MH - Biomarkers MH - Brain Neoplasms/*diagnosis/*genetics MH - Chromosome Deletion MH - Chromosomes, Human, Pair 1/*genetics MH - Chromosomes, Human, Pair 19/*genetics MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Male MH - Middle Aged MH - Oligodendroglioma/*diagnosis/*genetics MH - Prognosis MH - Young Adult PMC - PMC3748924 OTO - NOTNLM OT - 1p/19q co-deletion OT - co-polysomy OT - oligodendroglial tumors OT - prognosis OT - survival EDAT- 2013/07/19 06:00 MHDA- 2014/03/22 06:00 PMCR- 2014/09/01 CRDT- 2013/07/18 06:00 PHST- 2013/07/18 06:00 [entrez] PHST- 2013/07/19 06:00 [pubmed] PHST- 2014/03/22 06:00 [medline] PHST- 2014/09/01 00:00 [pmc-release] AID - not092 [pii] AID - 10.1093/neuonc/not092 [doi] PST - ppublish SO - Neuro Oncol. 2013 Sep;15(9):1244-50. doi: 10.1093/neuonc/not092. Epub 2013 Jul 16.