PMID- 33888870 OWN - NLM STAT- MEDLINE DCOM- 20220225 LR - 20230131 IS - 1476-5500 (Electronic) IS - 0929-1903 (Linking) VI - 28 IP - 9 DP - 2021 Sep TI - Delivery technologies to engineer natural killer cells for cancer immunotherapy. PG - 947-959 LID - 10.1038/s41417-021-00336-2 [doi] AB - In recent years, immune cell-based cancer therapeutics have been utilized broadly in the clinic. Through advances in cellular engineering, chimeric antigen receptor (CAR) T-cell therapies have demonstrated substantial success in treating hematological tumors and have become the most prominent cell-based therapy with three commercialized products in the market. However, T-cell-based immunotherapies have certain limitations, including a restriction to autologous cell sources to avoid severe side-effects caused by human leukocyte antigen (HLA) mismatch. This necessity for personalized treatment inevitably results in tremendous manufacturing and time costs, reducing accessibility for many patients. As an alternative strategy, natural killer (NK) cells have emerged as potential candidates for improved cell-based immunotherapies. NK cells are capable of killing cancer cells directly without requiring HLA matching. Furthermore, NK cell-based therapies can use various allogeneic cell sources, allowing for the possibility of "off-the-shelf" immunotherapies with reduced side-effects and shortened manufacturing times. Here we provide an overview of the use of NK cells in cancer immunotherapy, their current status in clinical trials, as well as the design and implementation of delivery technologies-including viral, non-viral, and nanoparticle-based approaches-for engineering NK cell-based immunotherapies. CI - (c) 2021. The Author(s), under exclusive licence to Springer Nature America, Inc. FAU - El-Mayta, Rakan AU - El-Mayta R AD - Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA. FAU - Zhang, Zijing AU - Zhang Z AD - Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA. FAU - Hamilton, Alex G AU - Hamilton AG AUID- ORCID: 0000-0002-9810-5630 AD - Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA. FAU - Mitchell, Michael J AU - Mitchell MJ AUID- ORCID: 0000-0002-3628-2244 AD - Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania, USA. mjmitch@seas.upenn.edu. AD - Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA. mjmitch@seas.upenn.edu. AD - Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA. mjmitch@seas.upenn.edu. AD - Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA. mjmitch@seas.upenn.edu. AD - Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA. mjmitch@seas.upenn.edu. LA - eng GR - R37 CA244911/CA/NCI NIH HHS/United States GR - R01 DK123049/DK/NIDDK NIH HHS/United States GR - R01 CA241661/CA/NCI NIH HHS/United States GR - DGE 1845298/National Science Foundation (NSF)/ PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Review DEP - 20210422 PL - England TA - Cancer Gene Ther JT - Cancer gene therapy JID - 9432230 SB - IM MH - Humans MH - Immunotherapy/*methods MH - Killer Cells, Natural/*metabolism MH - Neoplasms/*therapy EDAT- 2021/04/24 06:00 MHDA- 2022/02/26 06:00 CRDT- 2021/04/23 06:17 PHST- 2020/08/24 00:00 [received] PHST- 2021/03/29 00:00 [accepted] PHST- 2021/03/09 00:00 [revised] PHST- 2021/04/24 06:00 [pubmed] PHST- 2022/02/26 06:00 [medline] PHST- 2021/04/23 06:17 [entrez] AID - 10.1038/s41417-021-00336-2 [pii] AID - 10.1038/s41417-021-00336-2 [doi] PST - ppublish SO - Cancer Gene Ther. 2021 Sep;28(9):947-959. doi: 10.1038/s41417-021-00336-2. Epub 2021 Apr 22.