Abstract

Basal-like breast cancer (BLBC) is associated with a poor clinical outcome due to the few treatment options and absence of effective targeted agents. Here, we show that malic enzyme 1 (ME1) is dramatically upregulated in BLBC due to ME1 copy number amplification. ME1 expression increases glucose uptake and lactate production, and reduces oxygen consumption, leading to aerobic glycolysis. ME1 expression promotes, whereas knockdown of ME1 expression suppresses tumorigenicity. In breast cancer patients, ME1 expression is positively correlated with large tumor size, high grade, poor survival, and chemotherapy resistance. Our study not only contributes to a new understanding of how metabolic reprogramming contributes to BLBC progression, but also provides a potential prognostic marker and therapeutic target for this challenging disease.

Details

Title
ME1 promotes basal-like breast cancer progression and associates with poor prognosis
Author
Liao, Ruocen 1 ; Ren, Guoping 2 ; Liu, Huixin 1 ; Chen, Xingyu 1 ; Cao, Qianhua 1 ; Wu, Xuebiao 1 ; Li, Jun 1 ; Chenfang Dong 1 

 Department of Pathology and Pathophysiology, and Department of Surgical Oncology (breast center) of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Zhejiang Key Laboratory for Disease Proteomics, Zhejiang University School of Medicine, Hangzhou, China 
 Department of Pathology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China 
Pages
1-10
Publication year
2018
Publication date
Nov 2018
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2132702574
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.