PMID- 26161550 OWN - NLM STAT- MEDLINE DCOM- 20160408 LR - 20181113 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 10 IP - 7 DP - 2015 TI - The Clinicopathologic and Prognostic Value of Altered Chromosome 17 Centromere Copy Number in HER2 Fish Equivocal Breast Carcinomas. PG - e0132824 LID - 10.1371/journal.pone.0132824 [doi] LID - e0132824 AB - Chromosome 17 centromere (CEP17) gain is frequently observed in breast cancer by fluorescence in situ hybridization (FISH). To address the biologic characteristics and clinical significance of CEP17 gain in a large population of breast cancer patients, we performed FISH on a series of 770 breast cancer tissues to evaluate the status of human epidermal growth factor receptor 2 (HER2) gene and CEP17 by immunohistochemistry (IHC) and FISH. Among the 770 specimens, 184 cases showed CEP17 gain (23.9%). Histological grade, nodal status, HER2 by IHC, Ki 67 index, and p53 expression were significantly different between CEP17 gain tumors and HER2-positive tumors. In contrast with HER2-negative tumors, CEP17 gain tumors showed higher histological grade, higher HER2 score by IHC, and higher Ki 67 index. The patients with CEP17 gain tumors had an intermediate survival between HER2-negative and HER2-positive patients. By comparison to HER2-negative and HER2-positive patients, survival in luminal B patients with CEP17 gain tumors also fell in between. In conclusion, CEP17 gain tumors show specific differences compared with HER2-negative and HER2-positive tumors in clinical parameters and prognosis. FAU - Ji, Hongfei AU - Ji H AD - Department of Cancer Molecular and Biology, Cancer Institute of Harbin Medical University, Harbin, China. FAU - Xuan, Qijia AU - Xuan Q AD - Department of Medical Oncology, Tumor Hospital of Harbin Medical University, Harbin, China. FAU - Nanding, Abiyasi AU - Nanding A AD - Department of Pathology, Tumor Hospital of Harbin Medical University, Harbin, China. FAU - Zhang, Haiyu AU - Zhang H AD - Department of Biostatistics, Harbin Medical University, Harbin, China. FAU - Zhang, Qingyuan AU - Zhang Q AD - Department of Cancer Molecular and Biology, Cancer Institute of Harbin Medical University, Harbin, China; Department of Medical Oncology, Tumor Hospital of Harbin Medical University, Harbin, China. LA - eng PT - Journal Article DEP - 20150710 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - EC 2.7.10.1 (ERBB2 protein, human) RN - EC 2.7.10.1 (Receptor, ErbB-2) SB - IM MH - Breast Neoplasms/*genetics/metabolism/mortality MH - Carcinoma, Ductal, Breast/*genetics/metabolism/mortality MH - Centromere/*genetics MH - Chromosomes, Human, Pair 17/*genetics MH - DNA Copy Number Variations MH - Disease-Free Survival MH - Female MH - Genetic Association Studies MH - Humans MH - In Situ Hybridization, Fluorescence MH - Kaplan-Meier Estimate MH - Middle Aged MH - Prognosis MH - Receptor, ErbB-2/metabolism PMC - PMC4498752 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2015/07/15 06:00 MHDA- 2016/04/09 06:00 PMCR- 2015/07/10 CRDT- 2015/07/11 06:00 PHST- 2015/01/04 00:00 [received] PHST- 2015/06/19 00:00 [accepted] PHST- 2015/07/11 06:00 [entrez] PHST- 2015/07/15 06:00 [pubmed] PHST- 2016/04/09 06:00 [medline] PHST- 2015/07/10 00:00 [pmc-release] AID - PONE-D-14-52351 [pii] AID - 10.1371/journal.pone.0132824 [doi] PST - epublish SO - PLoS One. 2015 Jul 10;10(7):e0132824. doi: 10.1371/journal.pone.0132824. eCollection 2015.