Abstract:
PURPOSE:Myeloperoxidase (MPO) is an enzyme secreted by neutrophil granulocytes as a result of phagocytosis during inflammation. In colorectal cancer, tumour infiltration by MPO expressing cells has been shown to be independently associated with a favourable prognosis. In this study, we explored the role of MPO-positive cell infiltration and its prognostic significance in invasive breast cancer. METHODS:We performed immunohistochemical staining for MPO on multiple tissue microarrays comprising a total of 928 human breast cancer samples with detailed clinical-pathological annotation and outcome data. RESULTS:MPO-positive cell infiltration (≥ 5 cells/tissue punch) was found in 150 (16%) of the 928 evaluable breast cancer cases. In univariate survival analyses, infiltration by MPO-positive cells was associated with a significantly better overall survival (p < 0.001). In subset univariate analyses, the infiltration by MPO-positive cells was associated with significantly better overall survival in the Luminal B/HER2-negative subtype (p = 0.005), the HER2 enriched subtype (p = 0.011), and the Triple Negative subtype (p < 0.001). In multivariate analysis, MPO expression proved to be an independent prognostic factor for improved overall survival (p < 0.001). CONCLUSIONS:This is the first study to show that infiltration of MPO-positive cells is an independent prognostic biomarker for improved overall survival in human breast cancer.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Zeindler J,Angehrn F,Droeser R,Däster S,Piscuoglio S,Ng CKY,Kilic E,Mechera R,Meili S,Isaak A,Weber WP,Muenst S,Soysal SDdoi
10.1007/s10549-019-05336-3subject
Has Abstractpub_date
2019-10-01 00:00:00pages
581-589issue
3eissn
0167-6806issn
1573-7217pii
10.1007/s10549-019-05336-3journal_volume
177pub_type
杂志文章abstract::EMSY is a putative oncogene amplified in a minority of breast carcinomas, its protein product interacts with and transcriptionally silences BRCA2. We hypothesized that breast tumors from BRCA2 mutation carriers would be less likely than other familial breast cancers to exhibit EMSY amplification. As EMSY is located on...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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journal_title:Breast cancer research and treatment
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更新日期:2008-02-01 00:00:00
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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更新日期:1995-06-01 00:00:00
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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更新日期:2005-11-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-006-9312-y
更新日期:2007-03-01 00:00:00
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,多中心研究
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806188
更新日期:1996-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806494
更新日期:1996-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-013-2679-7
更新日期:2013-09-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
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journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1999-11-01 00:00:00
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
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更新日期:2015-07-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
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更新日期:2004-11-01 00:00:00