1. Academic Validation
  2. FOXO3A-induced LINC00926 suppresses breast tumor growth and metastasis through inhibition of PGK1-mediated Warburg effect

FOXO3A-induced LINC00926 suppresses breast tumor growth and metastasis through inhibition of PGK1-mediated Warburg effect

  • Mol Ther. 2021 Sep 1;29(9):2737-2753. doi: 10.1016/j.ymthe.2021.04.036.
Zhong Chu 1 Nan Huo 2 Xiang Zhu 2 Hanxiao Liu 1 Rui Cong 2 Luyuan Ma 2 Xiaofeng Kang 2 Chunyuan Xue 2 Jingtong Li 2 Qihong Li 3 Hua You 4 Qingyuan Zhang 5 Xiaojie Xu 6
Affiliations

Affiliations

  • 1 Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150081, China.
  • 2 Department of Cellular Engineering Lab, Beijing Institute of Biotechnology, Beijing 100850, China.
  • 3 Department of Stomatology, Fifth Medical Center of Chinese PLA General Hospital, Beijing 100071, China. Electronic address: liqihong@126.com.
  • 4 Department of Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou 510095, China. Electronic address: youhua307@163.com.
  • 5 Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150081, China. Electronic address: 0566@hrbmu.edu.cn.
  • 6 Department of Cellular Engineering Lab, Beijing Institute of Biotechnology, Beijing 100850, China. Electronic address: miraclexxj@126.com.
Abstract

Phosphoglycerate kinase 1 (PGK1), a critical component of the glycolytic pathway, relates to the development of various cancers. However, the mechanisms of PGK1 inhibition and physiological significance of PGK1 inhibitors in Cancer cells are unclear. Long non-coding RNAs (lncRNAs) play a vital role in tumor growth and progression. Here, we identify a lncRNA LINC00926 that negatively regulates PGK1 expression and predicts good clinical outcome of breast Cancer. LINC00926 downregulates PGK1 expression through the enhancement of PGK1 ubiquitination mediated by E3 ligase STUB1. Moreover, hypoxia inhibits LINC00926 expression and activates PGK1 expression largely through FOXO3A. FOXO3A/LINC00926/PGK1 axis regulates breast Cancer glycolysis, tumor growth, and lung metastasis both in vitro and in vivo. In breast Cancer patients, LINC00926 expression is negatively correlated with PGK1 and positively correlated with FOXO3A expression. Our work established FOXO3A/LINC00926/PGK1 as a critical axis to regulate breast Cancer growth and progression. Targeting PGK1 or supplement of LINC00926 or FOXO3A could be potential therapeutic strategies in breast Cancer.

Keywords

FOXO3A; LINC00926; PGK1; aerobic glycolysis; breast cancer; hypoxia.

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