期刊
FRONTIERS IN IMMUNOLOGY
卷 13, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2022.884648
关键词
NK cells; memory-like; trained immunity; cancer immunotherapy; AML; acute myeloid leukemia; cytokine-induced memory-like NK cells; adaptive NK cells; adoptive cell therapy (ACT)
类别
资金
- Fundacion AECC-Spanish Association Against Cancer Foundation [PRDVZ21440ASTA, PROYE16074BORR]
- Health Department, Basque Government [2021333006]
- Department of Education, Basque Government [PRE_2021_2_0215]
- Jesus de Gangoiti Barrera Foundation [FJGB21/001, FJBG21/005]
Natural killer (NK) cells play a key role in defense against viral infections and tumor cells. Recent research has shown that under certain conditions, NK cells can exhibit adaptive and memory-like features. These memory-like NK cells undergo genetic and metabolic changes, resulting in enhanced effector functions after a resting period. Due to their long persistence, these memory-like NK cells are potential candidates for cancer immunotherapy.
Natural killer (NK) cells are lymphocytes with a key role in the defense against viral infections and tumor cells. Although NK cells are classified as innate lymphoid cells (ILCs), under certain circumstances they exhibit adaptive and memory-like features. The latter may be achieved, among others, by a brief stimulation with interleukin (IL)-12, IL-15 and IL-18. These cytokine-induced memory-like (CIML) NK cells resemble the trained immunity observed in myeloid cells. CIML NK cells undergo transcriptional, epigenetic and metabolic reprogramming that, along with changes in the expression of cell surface receptors and components of cytotoxic granules, are responsible for their enhanced effector functions after a resting period. In addition, these memory-like NK cells persist for a long time, which make them a good candidate for cancer immunotherapy. Currently, several clinical trials are testing CIML NK cells infusions to treat tumors, mostly hematological malignancies. In relapse/refractory acute myeloid leukemia (AML), the adoptive transfer of CIML NK cells is safe and complete clinical remissions have been observed. In our review, we sought to summarize the current knowledge about the generation and molecular basis of NK cell memory-like responses and the up-to-date results from clinical trials with CIML NK cells.
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