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Natural Killer Cell-targeted Immunotherapy for Cancer

Jingyi Tang1, Qi Zhu2, Zhaoyang Li3

  • 1School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China.

Current Stem Cell Research & Therapy
|January 7, 2022
PubMed

Insights

Natural Killer (NK) cells are revolutionizing cancer immunotherapy. This review explores NK cell manufacturing, enhancement techniques, and engineering strategies to improve their tumor-killing abilities for effective cancer treatment.

Area of Science:

  • Immunology
  • Oncology
  • Biotechnology

Background:

  • Natural Killer (NK) cells, identified in the 1970s, are crucial for innate immunity against tumors.
  • NK cell-based cancer immunotherapy has rapidly advanced, becoming a key area of innovation.
  • Current research focuses on optimizing NK cell sources, enhancing their cytotoxic functions, and enabling tumor-specific targeting.

Purpose of the Study:

  • This review synthesizes recent advancements in NK cell manufacturing and therapeutic strategies for cancer treatment.
  • It highlights methods to improve NK cell efficacy, including engineering and auxiliary treatments.
  • The review examines the potential of NK cells as a component of combination cancer therapies.

Main Methods:

  • Review of scientific literature on NK cell manufacturing and immunotherapy.
  • Analysis of techniques for enhancing NK cell cytotoxicity and longevity.
  • Exploration of chimeric antigen receptor (CAR) NK cells and antibody-based therapies.

Main Results:

  • Significant progress has been made in developing "off-the-shelf" allogeneic NK cell products.
  • Engineering NK cells with chimeric antigen receptors (CARs) enhances tumor recognition and killing.
  • Monoclonal antibodies targeting inhibitory receptors can boost NK cell antitumor activity.

Conclusions:

  • NK cells represent a promising avenue for cancer immunotherapy, with ongoing advancements in manufacturing and engineering.
  • Enhanced NK cell therapies, including CAR-NK cells, show potential for improved patient outcomes.
  • NK cells are valuable in multipronged strategies to strengthen the immune response against cancer.
Keywords:
NK cellscancerous cellschimeric antigen receptorgenetic engineeringimmunotherapyinhibitory checkpoints

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