PMID- 25674225 OWN - NLM STAT- MEDLINE DCOM- 20151028 LR - 20181113 IS - 1936-2625 (Electronic) IS - 1936-2625 (Linking) VI - 7 IP - 12 DP - 2014 TI - Clinical significance of chromosome 1p/19q loss of heterozygosity and Sox17 expression in oligodendrogliomas. PG - 8609-15 AB - OBJECTIVE: To study chromosome 1p/19q loss of heterozygosity (LOH) and Sox17 protein expression in oligodendrogliomas and correlate this loss with clinicopathological features. METHODS: This study included 100 cases of oligodendrogliomas at the First Affiliated Hospital of Xinjiang Medical University from 2003 to 2014. The cases included paraffin-embedded tissues from 50 low-grade oligodendrogliomas and 50 anaplastic oligodendrogliomas. Chromosome 1p/19q LOH was detected by fluorescence in situ hybridization (FISH) and Sox17 protein expression was analyzed by immunohistochemistry. Clinicopathological characteristics of the oligodendrogliomas were compared and prognosis analyzed using Cox regression and Kaplan-Meier analyses. RESULTS: The LOH positivity rate of 1p/19q was 52% in 50 cases of low-grade oligodendrogliomas and 68% in 50 cases of anaplastic oligodendrogliomas (P = 0.102). The rates of Sox17 expression were significantly different in oligodendrogliomas (82%) and anaplastic oligodendrogliomas (62%, P = 0.026). Single factor analysis determined that 1p/19q LOH (P = 0.000), Sox17 protein expression (P = 0.000), location (P = 0.001), chemotherapy (P = 0.000), and radiation therapy (P = 0.001) were associated with oligodendroglioma patient prognosis. Cox multiple factors regression analysis determined that 1p/19q LOH and Sox17 expression were independent prognostic factors of oligodendrogliomas. CONCLUSION: In this study, oligodendroglioma patients with 1p/19q LOH and Sox17 protein expression had a better prognosis. Thus, analysis of 1p/19q LOH and Sox17 protein expression could significantly enhance diagnostic accuracy, guide treatment, and improve the prognosis. FAU - Li, Junzhi AU - Li J AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Miao, Na AU - Miao N AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Liu, Ming AU - Liu M AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Cui, Wenli AU - Cui W AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Liu, Xia AU - Liu X AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Li, Xinxia AU - Li X AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Shi, Xiaoli AU - Shi X AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Qing, Song AU - Qing S AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Ma, Yuqing AU - Ma Y AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Zhang, Wei AU - Zhang W AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. FAU - Biekemituofu, Hadeti AU - Biekemituofu H AD - Department of Pathology, First Affiliated Hospital of Xinjiang Medical University Xinjiang Uyger Automatic Region, Urumqi 830054, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141201 PL - United States TA - Int J Clin Exp Pathol JT - International journal of clinical and experimental pathology JID - 101480565 RN - 0 (Biomarkers, Tumor) RN - 0 (SOX17 protein, human) RN - 0 (SOXF Transcription Factors) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Biomarkers, Tumor/analysis MH - *Brain Neoplasms/genetics/metabolism/mortality MH - Child MH - *Chromosomes, Human, Pair 1/genetics MH - *Chromosomes, Human, Pair 19/genetics MH - Female MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence MH - Kaplan-Meier Estimate MH - Loss of Heterozygosity/*genetics MH - Male MH - Middle Aged MH - *Oligodendroglioma/genetics/metabolism/mortality MH - Prognosis MH - Proportional Hazards Models MH - SOXF Transcription Factors/*biosynthesis MH - Young Adult PMC - PMC4313992 OTO - NOTNLM OT - 1p/19q LOH OT - Oligodendroglioma OT - Sox17 OT - clinical features OT - prognosis EDAT- 2015/02/13 06:00 MHDA- 2015/10/29 06:00 PMCR- 2014/12/01 CRDT- 2015/02/13 06:00 PHST- 2014/10/21 00:00 [received] PHST- 2014/12/01 00:00 [accepted] PHST- 2015/02/13 06:00 [entrez] PHST- 2015/02/13 06:00 [pubmed] PHST- 2015/10/29 06:00 [medline] PHST- 2014/12/01 00:00 [pmc-release] PST - epublish SO - Int J Clin Exp Pathol. 2014 Dec 1;7(12):8609-15. eCollection 2014.