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PD-1-positive Natural Killer Cells have a weaker antitumor function than that of PD-1-negative Natural Killer Cells in Lung Cancer

Antibodies targeting the immune checkpoint inhibitor, programmed cell death 1 (PD-1), have provided a breakthrough in the treatment of lung cancer. However, the function of PD-1 in natural killer (NK) cells of cancer patients remains unclear. Herein, we analyzed the expression of PD-1 on the NK cell...

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Autores principales: Niu, Chao, Li, Min, Zhu, Shan, Chen, Yongchong, Zhou, Lei, Xu, Dongsheng, Xu, Jianting, Li, Zhaozhi, Li, Wei, Cui, Jiuwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Ivyspring International Publisher 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7415385/
https://www.ncbi.nlm.nih.gov/pubmed/32788875
http://dx.doi.org/10.7150/ijms.47701
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author Niu, Chao
Li, Min
Zhu, Shan
Chen, Yongchong
Zhou, Lei
Xu, Dongsheng
Xu, Jianting
Li, Zhaozhi
Li, Wei
Cui, Jiuwei
author_facet Niu, Chao
Li, Min
Zhu, Shan
Chen, Yongchong
Zhou, Lei
Xu, Dongsheng
Xu, Jianting
Li, Zhaozhi
Li, Wei
Cui, Jiuwei
author_sort Niu, Chao
collection PubMed
description Antibodies targeting the immune checkpoint inhibitor, programmed cell death 1 (PD-1), have provided a breakthrough in the treatment of lung cancer. However, the function of PD-1 in natural killer (NK) cells of cancer patients remains unclear. Herein, we analyzed the expression of PD-1 on the NK cells in the peripheral blood of patients with lung cancer and found that the level of PD-1(+) NK cells in patients was significantly higher than that in healthy individuals. Moreover, these PD-1(+) NK cells demonstrated a weaker ability to secrete interferon-gamma (INF-γ), granzyme B, and perforin, and exhibited lower CD107a expression. Importantly, in patients with lung cancer, the percentage of PD-1(+) NK cells was significantly positively correlated with the concentration of IL-2 in the plasma, which was also higher than that in healthy individuals. In addition, IL-2 could increase the expression of PD-1 on NK cells in vitro, indicating that high IL-2 level in the plasma is largely responsible for the abundance of PD-1(+) NK cells in patients with lung cancer. These findings demonstrate intriguing mechanisms for understanding the expression of PD-1 on NK cells and the function of PD-1(+) NK cells in lung cancer. This study confirms and extends previous studies demonstrating that PD-1 can negatively regulate the antitumor function of NK cells.
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spelling pubmed-74153852020-08-11 PD-1-positive Natural Killer Cells have a weaker antitumor function than that of PD-1-negative Natural Killer Cells in Lung Cancer Niu, Chao Li, Min Zhu, Shan Chen, Yongchong Zhou, Lei Xu, Dongsheng Xu, Jianting Li, Zhaozhi Li, Wei Cui, Jiuwei Int J Med Sci Research Paper Antibodies targeting the immune checkpoint inhibitor, programmed cell death 1 (PD-1), have provided a breakthrough in the treatment of lung cancer. However, the function of PD-1 in natural killer (NK) cells of cancer patients remains unclear. Herein, we analyzed the expression of PD-1 on the NK cells in the peripheral blood of patients with lung cancer and found that the level of PD-1(+) NK cells in patients was significantly higher than that in healthy individuals. Moreover, these PD-1(+) NK cells demonstrated a weaker ability to secrete interferon-gamma (INF-γ), granzyme B, and perforin, and exhibited lower CD107a expression. Importantly, in patients with lung cancer, the percentage of PD-1(+) NK cells was significantly positively correlated with the concentration of IL-2 in the plasma, which was also higher than that in healthy individuals. In addition, IL-2 could increase the expression of PD-1 on NK cells in vitro, indicating that high IL-2 level in the plasma is largely responsible for the abundance of PD-1(+) NK cells in patients with lung cancer. These findings demonstrate intriguing mechanisms for understanding the expression of PD-1 on NK cells and the function of PD-1(+) NK cells in lung cancer. This study confirms and extends previous studies demonstrating that PD-1 can negatively regulate the antitumor function of NK cells. Ivyspring International Publisher 2020-07-19 /pmc/articles/PMC7415385/ /pubmed/32788875 http://dx.doi.org/10.7150/ijms.47701 Text en © The author(s) This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/). See http://ivyspring.com/terms for full terms and conditions.
spellingShingle Research Paper
Niu, Chao
Li, Min
Zhu, Shan
Chen, Yongchong
Zhou, Lei
Xu, Dongsheng
Xu, Jianting
Li, Zhaozhi
Li, Wei
Cui, Jiuwei
PD-1-positive Natural Killer Cells have a weaker antitumor function than that of PD-1-negative Natural Killer Cells in Lung Cancer
title PD-1-positive Natural Killer Cells have a weaker antitumor function than that of PD-1-negative Natural Killer Cells in Lung Cancer
title_full PD-1-positive Natural Killer Cells have a weaker antitumor function than that of PD-1-negative Natural Killer Cells in Lung Cancer
title_fullStr PD-1-positive Natural Killer Cells have a weaker antitumor function than that of PD-1-negative Natural Killer Cells in Lung Cancer
title_full_unstemmed PD-1-positive Natural Killer Cells have a weaker antitumor function than that of PD-1-negative Natural Killer Cells in Lung Cancer
title_short PD-1-positive Natural Killer Cells have a weaker antitumor function than that of PD-1-negative Natural Killer Cells in Lung Cancer
title_sort pd-1-positive natural killer cells have a weaker antitumor function than that of pd-1-negative natural killer cells in lung cancer
topic Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7415385/
https://www.ncbi.nlm.nih.gov/pubmed/32788875
http://dx.doi.org/10.7150/ijms.47701
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