NK cells and solid tumors: therapeutic potential and persisting obstacles

Abstract Natural killer (NK) cells, which are innate lymphocytes endowed with potent cytotoxic activity, have recently attracted attention as potential anticancer therapeutics. While NK cells mediate encouraging responses in patients with leukemia, the therapeutic effects of NK cell infusion in pati...

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Main Authors: Le Tong, Carlos Jiménez-Cortegana, Apple H.M. Tay, Stina Wickström, Lorenzo Galluzzi, Andreas Lundqvist
Format: Article
Language:English
Published: BMC 2022-11-01
Series:Molecular Cancer
Subjects:
Online Access:https://doi.org/10.1186/s12943-022-01672-z
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author Le Tong
Carlos Jiménez-Cortegana
Apple H.M. Tay
Stina Wickström
Lorenzo Galluzzi
Andreas Lundqvist
author_facet Le Tong
Carlos Jiménez-Cortegana
Apple H.M. Tay
Stina Wickström
Lorenzo Galluzzi
Andreas Lundqvist
author_sort Le Tong
collection DOAJ
description Abstract Natural killer (NK) cells, which are innate lymphocytes endowed with potent cytotoxic activity, have recently attracted attention as potential anticancer therapeutics. While NK cells mediate encouraging responses in patients with leukemia, the therapeutic effects of NK cell infusion in patients with solid tumors are limited. Preclinical and clinical data suggest that the efficacy of NK cell infusion against solid malignancies is hampered by several factors including inadequate tumor infiltration and persistence/activation in the tumor microenvironment (TME). A number of metabolic features of the TME including hypoxia as well as elevated levels of adenosine, reactive oxygen species, and prostaglandins negatively affect NK cell activity. Moreover, cancer-associated fibroblasts, tumor-associated macrophages, myeloid-derived suppressor cells, and regulatory T cells actively suppress NK cell-dependent anticancer immunity. Here, we review the metabolic and cellular barriers that inhibit NK cells in solid neoplasms as we discuss potential strategies to circumvent such obstacles towards superior therapeutic activity.
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spelling doaj.art-79fefdad892946759dec98503965999f2022-12-22T03:40:03ZengBMCMolecular Cancer1476-45982022-11-0121111810.1186/s12943-022-01672-zNK cells and solid tumors: therapeutic potential and persisting obstaclesLe Tong0Carlos Jiménez-Cortegana1Apple H.M. Tay2Stina Wickström3Lorenzo Galluzzi4Andreas Lundqvist5Department of Oncology-Pathology, Karolinska InstituteDepartment of Radiation Oncology, Weill Cornell Medical CollegeDepartment of Oncology-Pathology, Karolinska InstituteDepartment of Oncology-Pathology, Karolinska InstituteDepartment of Radiation Oncology, Weill Cornell Medical CollegeDepartment of Oncology-Pathology, Karolinska InstituteAbstract Natural killer (NK) cells, which are innate lymphocytes endowed with potent cytotoxic activity, have recently attracted attention as potential anticancer therapeutics. While NK cells mediate encouraging responses in patients with leukemia, the therapeutic effects of NK cell infusion in patients with solid tumors are limited. Preclinical and clinical data suggest that the efficacy of NK cell infusion against solid malignancies is hampered by several factors including inadequate tumor infiltration and persistence/activation in the tumor microenvironment (TME). A number of metabolic features of the TME including hypoxia as well as elevated levels of adenosine, reactive oxygen species, and prostaglandins negatively affect NK cell activity. Moreover, cancer-associated fibroblasts, tumor-associated macrophages, myeloid-derived suppressor cells, and regulatory T cells actively suppress NK cell-dependent anticancer immunity. Here, we review the metabolic and cellular barriers that inhibit NK cells in solid neoplasms as we discuss potential strategies to circumvent such obstacles towards superior therapeutic activity.https://doi.org/10.1186/s12943-022-01672-zAdoptive cell therapyCAR T cellsCGAS/STING1 signalingImmune checkpoint inhibitorsPD-L1TREG cells
spellingShingle Le Tong
Carlos Jiménez-Cortegana
Apple H.M. Tay
Stina Wickström
Lorenzo Galluzzi
Andreas Lundqvist
NK cells and solid tumors: therapeutic potential and persisting obstacles
Molecular Cancer
Adoptive cell therapy
CAR T cells
CGAS/STING1 signaling
Immune checkpoint inhibitors
PD-L1
TREG cells
title NK cells and solid tumors: therapeutic potential and persisting obstacles
title_full NK cells and solid tumors: therapeutic potential and persisting obstacles
title_fullStr NK cells and solid tumors: therapeutic potential and persisting obstacles
title_full_unstemmed NK cells and solid tumors: therapeutic potential and persisting obstacles
title_short NK cells and solid tumors: therapeutic potential and persisting obstacles
title_sort nk cells and solid tumors therapeutic potential and persisting obstacles
topic Adoptive cell therapy
CAR T cells
CGAS/STING1 signaling
Immune checkpoint inhibitors
PD-L1
TREG cells
url https://doi.org/10.1186/s12943-022-01672-z
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