期刊
FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fcell.2021.761193
关键词
sirtuin 5 (SIRT5); CD8 T cell; memory T cell; infecion; effector T cell
资金
- Natural Science Foundation of Jiangsu Province [BK20200240]
- China Postdoctoral Science Foundation [2020M670219]
- Natural Science Foundation of China [NSFC 82101829, NSFC 81971466]
- Special Research Fund for Central Universities, Peking Union Medical College [2021-PT180-001]
- CAMS Innovation Fund for Medical Sciences [CIFMS 2021-1-I2M-061]
This study demonstrates that SIRT5 is dispensable for the effector function and memory differentiation of CD8(+) T cells.
CD8(+) T cell effector and memory differentiation is tightly controlled at multiple levels including transcriptional, metabolic, and epigenetic regulation. Sirtuin 5 (SIRT5) is a protein deacetylase mainly located at mitochondria, but it remains unclear whether SIRT5 plays key roles in regulating CD8(+) T cell effector or memory formation. Herein, with adoptive transfer of Sirt5(+/+) or Sirt5(-/-) OT-1 cells and acute Listeria monocytogenes infection model, we demonstrate that SIRT5 deficiency does not affect CD8(+) T cell effector function and that SIRT5 is not required for CD8(+) T cell memory formation. Moreover, the recall response of SIRT5 deficient memory CD8(+) T cells is comparable with Sirt5(+/+) memory CD8(+) T cells. Together, these observations suggest that SIRT5 is dispensable for the effector function and memory differentiation of CD8(+) T cells.
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