期刊
IMMUNITY
卷 54, 期 4, 页码 829-+出版社
CELL PRESS
DOI: 10.1016/j.immuni.2021.02.018
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资金
- NIH [P30DK063720, S10OD018040, S10OD021822, DP5OD023056, R01DK105550, R01HL136664, F30CA239367]
- Conquer Cancer Foundation Young Investigator Award [CA-0122026]
Memory T cells rely on oxidative phosphorylation, while short-lived effector T cells rely on glycolysis. The study revealed a distinct metabolic state in early-activated T cells characterized by maximal expression of glycolytic and oxidative metabolic proteins, which rapidly decreased after 5 days post-infection. This transient state was also observed in chimeric antigen receptor (CAR) T cells in lymphoma patients.
Memory T cells are thought to rely on oxidative phosphorylation and short-lived effector T cells on glycolysis. Here, we investigated how T cells arrive at these states during an immune response. To understand the metabolic state of rare, early-activated T cells, we adapted mass cytometry to quantify metabolic regulators at single-cell resolution in parallel with cell signaling, proliferation, and effector function. We interrogated CD8(+) T cell activation in vitro and in response to Listeria monocytogenes infection in vivo. This approach revealed a distinct metabolic state in early-activated T cells characterized by maximal expression of glycolytic and oxidative metabolic proteins. Cells in this transient state were most abundant 5 days post-infection before rapidly decreasing metabolic protein expression. Analogous findings were observed in chimeric antigen receptor (CAR) T cells interrogated longitudinally in advanced lymphoma patients. Our study demonstrates the utility of single-cell metabolic analysis by mass cytometry to identify metabolic adaptations of immune cell populations in vivo and provides a resource for investigations of metabolic regulation of immune responses across a variety of applications.
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