Journal
SCIENCE CHINA-LIFE SCIENCES
Volume 58, Issue 12, Pages 1233-1245Publisher
SCIENCE PRESS
DOI: 10.1007/s11427-015-4970-9
Keywords
NK cell; cancer; cytokine infusion; adoptive transfer; immunotherapy
Categories
Funding
- Ministry of Science and Technology of China [2014CB910104]
- National Natural Science Foundation of China [81171899, 81372230]
- Claudia Adams Barr Program for Innovative Cancer Research
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Natural killer (NK) cells, which recognize and kill target cells independent of antigen specificity and major histocompatibility complex (MHC) matching, play pivotal roles in immune defence against tumors. However, tumor cells often acquire the ability to escape NK cell-mediated immune surveillance. Thus, understanding mechanisms underlying regulation of NK cell phenotype and function within the tumor environment is instrumental for designing new approaches to improve the current cell-based immunotherapy. In this review, we elaborate the main biological features and molecular mechanisms of NK cells that pertain to regulation of NK cell-mediated anti-tumor activity. We further overview current clinical approaches regarding NK cell-based cancer therapy, including cytokine infusion, adoptive transfer of autologous or allogeneic NK cells, applications of chimeric antigen receptor (CAR)-expressing NK cells and adoptive transfer of memory-like NK cells. With these promising clinical outcomes and fuller understanding the basic questions raised in this review, we foresee that NK cell-based approaches may hold great potential for future cancer immunotherapy.
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