NK-92 cells retain vitality and functionality when grown in standard cell culture conditions

NK-92 cells are an off-the-shelf, cell-based immunotherapy currently in clinical trials for a variety of cancer types. As the most ‘NK-like’ cell line available, it is also an important research tool. To date, NK-92 cells have been cultivated in a costly and time-consumingly prepared specialized med...

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Main Authors: Rebecca Kotzur, Alexandra Duev-Cohen, Inbal Kol, Adi Reches, Ofer Mandelboim, Natan Stein
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8926178/?tool=EBI
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author Rebecca Kotzur
Alexandra Duev-Cohen
Inbal Kol
Adi Reches
Ofer Mandelboim
Natan Stein
author_facet Rebecca Kotzur
Alexandra Duev-Cohen
Inbal Kol
Adi Reches
Ofer Mandelboim
Natan Stein
author_sort Rebecca Kotzur
collection DOAJ
description NK-92 cells are an off-the-shelf, cell-based immunotherapy currently in clinical trials for a variety of cancer types. As the most ‘NK-like’ cell line available, it is also an important research tool. To date, NK-92 cells have been cultivated in a costly and time-consumingly prepared specialized medium, complicating research with these cells. Here we show that NK-92 cells grow in the comparatively user-friendly RPMI medium supplemented with IL-2. We demonstrate that their metabolic activity and replication rates are even improved in RPMI. Furthermore, they can be grown in cell culture dishes and do not need to be expanded in ventilated flasks. We show that in RPMI the cells retain functional characteristics relating to receptor expression, IFN-γ secretion, and killing. Our findings will enable more researchers to work with and manipulate this cell line, hopefully leading to further discoveries and improved therapies.
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spelling doaj.art-401963b8101f47fc94e660f5469724ec2022-12-21T23:53:19ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01173NK-92 cells retain vitality and functionality when grown in standard cell culture conditionsRebecca KotzurAlexandra Duev-CohenInbal KolAdi RechesOfer MandelboimNatan SteinNK-92 cells are an off-the-shelf, cell-based immunotherapy currently in clinical trials for a variety of cancer types. As the most ‘NK-like’ cell line available, it is also an important research tool. To date, NK-92 cells have been cultivated in a costly and time-consumingly prepared specialized medium, complicating research with these cells. Here we show that NK-92 cells grow in the comparatively user-friendly RPMI medium supplemented with IL-2. We demonstrate that their metabolic activity and replication rates are even improved in RPMI. Furthermore, they can be grown in cell culture dishes and do not need to be expanded in ventilated flasks. We show that in RPMI the cells retain functional characteristics relating to receptor expression, IFN-γ secretion, and killing. Our findings will enable more researchers to work with and manipulate this cell line, hopefully leading to further discoveries and improved therapies.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8926178/?tool=EBI
spellingShingle Rebecca Kotzur
Alexandra Duev-Cohen
Inbal Kol
Adi Reches
Ofer Mandelboim
Natan Stein
NK-92 cells retain vitality and functionality when grown in standard cell culture conditions
PLoS ONE
title NK-92 cells retain vitality and functionality when grown in standard cell culture conditions
title_full NK-92 cells retain vitality and functionality when grown in standard cell culture conditions
title_fullStr NK-92 cells retain vitality and functionality when grown in standard cell culture conditions
title_full_unstemmed NK-92 cells retain vitality and functionality when grown in standard cell culture conditions
title_short NK-92 cells retain vitality and functionality when grown in standard cell culture conditions
title_sort nk 92 cells retain vitality and functionality when grown in standard cell culture conditions
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8926178/?tool=EBI
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