Abstract:
PURPOSE:Mitochondrial unfolding protein are abundant in breast cancer cells, but the mechanism by which breast cancer cells resist apoptosis is still not fully elucidated. In this study, we explored the role of mitochondrial unfolded protein response (mtUPR)-related proteins in four types of breast cancer tissues. METHODS:Mitochondrial fractions were taken from four breast cancer tissues (luminal A, luminal B, Her2 -overexpression, and TNBC) and the expression of mitochondrial polyubiquitinated proteins was observed by western blot and ELISA. In addition, the expression of hsp10, hsp60, and clpp in mitochondria was observed by western blot in breast cancer tissues and adjacent tissues, and confirmed by ELISA. The expression levels of hsp10 and hsp60 were correlated with clinicopathological parameters in 114 breast cancer patients. RESULTS:We found an increase in the performance of mitochondrial polyubiquitinated proteins in breast cancer tissues of luminal A, luminal B, Her2-overexpression, and TNBC. The mitochondrial hsp10, hsp60, and clpp are abundantly expressed in breast cancer tissues rather than adjacent noncancerous tissues. The expression levels of mitochondrial hsp10 and hsp60 were highest in histological grade 3 breast cancer tissues. Additionally, mitochondria with high hsp60 expression were more present in Her2-positive tumors. CONCLUSIONS:We observed that mtUPR was specifically activated in breast cancer tissues but inactivated in normal mammary tissue. MtUPR had also exhibited a particular increase in Her2-overexpression tumors but not in ER- or PR-positive tumors. Taken together, we suggested that mtUPR may act as a potential candidate for developing novel Her2-overexpression breast cancer therapy.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Chen FM,Huang LJ,Ou-Yang F,Kan JY,Kao LC,Hou MFdoi
10.1007/s10549-020-05729-9subject
Has Abstractpub_date
2020-08-01 00:00:00pages
61-70issue
1eissn
0167-6806issn
1573-7217pii
10.1007/s10549-020-05729-9journal_volume
183pub_type
杂志文章abstract::The DNA repair pathway is known to play a role in the etiology of breast cancer. A number of studies have demonstrated that common germline variants in genes involved in the DNA repair pathway influence breast cancer risk. To assess whether alterations in DNA repair genes contribute to breast cancer, we genotyped 12 s...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-008-0084-4
更新日期:2009-06-01 00:00:00
abstract::Patients from hereditary breast cancer-prone (HBC) families provide one of the most powerful and potentially cost effective models for cancer prevention and control. Paradoxically, this opportunity is often missed in the clinical practice setting due, in part, to inattention to the family history and/or lack of knowle...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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更新日期:1990-02-01 00:00:00
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journal_title:Breast cancer research and treatment
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更新日期:2017-04-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-014-3122-4
更新日期:2014-11-01 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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更新日期:2008-06-01 00:00:00
abstract::Oestrogen receptor (ER) negative breast cancers are more likely to achieve a pathological complete response (pCR) to neoadjuvant chemotherapy compared to those with ER positive tumours. ER positive tumours exhibit low proliferation and ER negative cancers high proliferation. The aim of this study was to determine to w...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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更新日期:2010-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-012-2177-3
更新日期:2012-08-01 00:00:00
abstract::The 2008 Physical Activity (PA) Guidelines recommend engaging in at least 2.5 h (10 MET-hours/week) of moderate intensity PA per week (defined as 4 METs) to reduce risk of morbidity and mortality. This analysis was conducted to investigate whether this recommendation can be extended to breast cancer survivors. Data fr...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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更新日期:2012-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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更新日期:2009-07-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章,多中心研究
doi:10.1007/s10549-007-9843-x
更新日期:2008-11-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1023/a:1006320122711
更新日期:2000-01-01 00:00:00
abstract::We report a novel germline 5369delATTT mutation in BRCA2 gene, detected in a 45-year-old woman with bilateral breast cancer. This deletion was also detected in her father with prostatic cancer and her sister with breast cancer. The mutation originates a premature stop at codon 1723 of BRCA2 protein and has not been do...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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更新日期:2010-05-01 00:00:00
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更新日期:2014-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-004-2046-9
更新日期:2005-02-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s10549-018-4790-2
更新日期:2018-08-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-013-2796-3
更新日期:2014-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
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更新日期:2001-07-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章,meta分析
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更新日期:2019-10-01 00:00:00
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pub_type: 杂志文章
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更新日期:2012-02-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4578-9
更新日期:2018-04-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1019969730552
更新日期:2002-10-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-018-4741-y
更新日期:2018-07-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-016-3984-8
更新日期:2016-11-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-013-2598-7
更新日期:2013-06-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4347-9
更新日期:2017-10-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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更新日期:2013-04-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-010-1131-5
更新日期:2011-07-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806395
更新日期:1984-01-01 00:00:00