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High A20 expression negatively impacts survival in patients with breast cancer

 Chang Ik Yoon  ;  Sung Gwe Ahn  ;  Soong June Bae  ;  Yun Jin Shin  ;  Chihwan Cha  ;  So Eun Park  ;  Ji-Hyung Lee  ;  Akira Ooshima  ;  Hye Sun Lee  ;  Kyung-Min Yang  ;  Seong-Jin Kim  ;  Seok Hee Park  ;  Joon Jeong 
 PLoS One, Vol.14(8) : e0221721, 2019 
Journal Title
 PLoS One 
Issue Date
BACKGROUND: A20 protein has ubiquitin-editing activities and acts as a key regulator of inflammation and immunity. Previously, our group showed that A20 promotes tumor metastasis through multi-monoubiquitylation of SNAIL1 in basal-like breast cancer. Here, we investigated survival outcomes in patients with breast cancer according to A20 expression. PATIENTS AND METHODS: We retrospectively collected tumor samples from patients with breast cancer. Immunohistochemistry (IHC) with an A20-specific antibody was performed, and survival outcomes were analyzed. RESULTS: A20 expression was evaluated in 442 patients. High A20 expression was associated with advanced anatomical stage and young age. High A20 expression showed significantly inferior recurrence-free-survival and overall-survival (P<0.001 and P<0.001, respectively). Multivariate analysis showed that A20 was an independent prognostic marker for RFS (HRs: 2.324, 95% CIs: 1.446-3.736) and OS (HRs: 2.629, 95% CIs: 1.585-4.361). In human epidermal growth factor receptor 2 (HER2)-positive and triple negative breast cancer (TNBC) subtypes, high A20 levels were associated with poor OS. CONCLUSION: We found that A20 expression is a poor prognostic marker in breast cancer. The prognostic impact of A20 was pronounced in aggressive tumors, such as HER2-positive and TNBC subtypes. Our findings suggested that A20 may be a valuable target in patients with aggressive breast cancer.
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1. College of Medicine (의과대학) > Dept. of Surgery (외과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Yonsei Biomedical Research Center (연세의생명연구원) > 1. Journal Papers
Yonsei Authors
Park, So Eun(박소은)
Bae, Soong June(배숭준) ORCID logo https://orcid.org/0000-0002-0012-9694
Ahn, Sung Gwe(안성귀) ORCID logo https://orcid.org/0000-0002-8778-9686
Lee, Hye Sun(이혜선) ORCID logo https://orcid.org/0000-0001-6328-6948
Jeong, Joon(정준) ORCID logo https://orcid.org/0000-0003-0397-0005
Cha, Chi Hwan(차치환)
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