Cancer mediates effector T cell dysfunction by targeting microRNAs and EZH2 via glycolysis restriction

Ende Zhao, Tomasz Maj, Ilona Kryczek, Wei Li, Ke Wu, Lili Zhao, Shuang Wei, Joel Crespo, Shanshan Wan, Linda Vatan, Wojciech Szeliga, Irene Shao, Yin Wang, Yan Liu, Sooryanarayana Varambally, Arul M. Chinnaiyan, Theodore H. Welling, Victor Marquez, Jan Kotarski, Hongbo WangZehua Wang, Yi Zhang, Rebecca Liu, Guobin Wang, Weiping Zou*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

335 Scopus citations

Abstract

Aerobic glycolysis regulates T cell function. However, whether and how primary cancer alters T cell glycolytic metabolism and affects tumor immunity in cancer patients remains a question. Here we found that ovarian cancers imposed glucose restriction on T cells and dampened their function via maintaining high expression of microRNAs miR-101 and miR-26a, which constrained expression of the methyltransferase EZH2. EZH2 activated the Notch pathway by suppressing Notch repressors Numb and Fbxw7 via trimethylation of histone H3 at Lys27 and, consequently, stimulated T cell polyfunctional cytokine expression and promoted their survival via Bcl-2 signaling. Moreover, small hairpin RNA-mediated knockdown of human EZH2 in T cells elicited poor antitumor immunity. EZH2 + CD8 + T cells were associated with improved survival in patients. Together, these data unveil a metabolic target and mechanism of cancer immune evasion.

Original languageEnglish (US)
Pages (from-to)95-103
Number of pages9
JournalNature Immunology
Volume17
Issue number1
DOIs
StatePublished - Jan 1 2016

Funding

We thank D. Postiff, M. Vinco, R. Craig and J. Barikdar for tissue procurement core at the University of Michigan; G. Lv, W. Dong and L. Li for assistance; R. Zhang (Wistar Institute) for shEZH2 plasmids; P. King for discussions; and B. Leclair and D. Leclair for support. Supported by the US National Institutes of Health (the Intramural Research Program; and CA123088, CA099985, CA156685, CA171306 and 5P30CA46592), the Chinese Ministry of Science and Technology (973 program, 2015CB554000), the Wuhan Union Hospital Research Fund, the Ovarian Cancer Research Fund, and Marsha Rivkin Center for Ovarian Cancer Research.

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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