Cited by 81Genomics, phytochemicals, and oxidative stressBreast Cancer Treatment StudiesBioactive Compounds and Antitumor Agents

NRF2 immunolocalization in human breast cancer patients as a prognostic factor

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Onodera, Yoshiaki, Motohashi, Hozumi, Takagi, Kiyoshi, Miki, Yasuhiro, Shibahara, Yukiko, Watanabe, Mika, Ishida, Takanori, Hirakawa, Hisashi +3 more·2014·Endocrine-Related Cancer

Abstract

Nuclear factor erythroid 2-related factor 2 (NRF2 (NFE2L2)) is an important transcriptional activator involved in the cellular defense mechanisms against electrophilic and oxidative stress. Recent studies have demonstrated that the expression of NRF2 protein is upregulated in several human malignancies and is associated with worse prognosis in these patients. However, the pathological and clinical significance of NRF2 has remained largely unknown in breast cancer patients. Therefore, in this study, we immunolocalized NRF2 in 106 breast carcinoma cases. NRF2 immunoreactivity was mainly detected in the nucleus of the breast carcinoma cells and it was positive in 44% of the cases. NRF2 status was significantly associated with histological grade, Ki-67 labeling index, p62 immunoreactivity, and NAD(P)H:quinone oxidoreductase 1 (NQO1) immunoreactivity, and the results of multivariate analyses revealed that NRF2 status was an independent adverse prognostic factor for both recurrence and disease-free survival of the patients. Subsequent in vitro studies demonstrated that the expression of NRF2 significantly increased the proliferation activity of MCF7 and SK-BR-3 breast carcinoma cells. These results indicate that nuclear NRF2 protein plays important roles in the proliferation and/or progression of breast carcinoma, and nuclear NRF2 immunoreactivity is therefore considered a potent prognostic factor in breast cancer patients.

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Authors
Onodera, Y., Motohashi, H., Takagi, K., Miki, Y., Shibahara, Y., Watanabe, M., Ishida, T., Hirakawa, H., Sasano, H., Yamamoto, M., & Suzuki, T.
Affiliations
Tohoku University (JP)
Venue
Endocrine-Related Cancer
Published
2013-12-03
Volume
21
Issue
2
Pages
241-252
ISSN
  • 1351-0088 (ISSN-L)
  • 1479-6821
OpenAlex
W2098175562
Cited by
81
References
60
Citations by year
2026: 1 · 2025: 4 · 2024: 20 · 2023: 7 · 2022: 3 · 2021: 8 · 2020: 6 · 2019: 8 · 2018: 3 · 2017: 4 · 2016: 8 · 2015: 8 · 2014: 1
FWCI
2.54
Type
journal article
Language
en
Open access
Locations
  • Endocrine Related Cancer (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (24249015)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics, phytochemicals, and oxidative stress
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Breast Cancer Treatment Studies
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Toxicology › Bioactive Compounds and Antitumor Agents
Keywords
Nrf2, breast cancer, prognostic factors, nuclear protein localization, NQO1, p62, Ki-67, histological grade, tumor recurrence, disease-free survival, cell proliferation, antioxidant defense
MeSH terms
Breast Neoplasms, Cell Movement, Female, Humans, Middle Aged, Prognosis, RNA, Messenger, Transfection, Carcinoma, Ductal, Breast, RNA, Small Interfering, Cell Line, Tumor, Cell Proliferation, NF-E2-Related Factor 2

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