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TXNIP Promotes Huma...
TXNIP Promotes Human NK Cell Development but Is Dispensable for NK Cell Functionality
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Persyn, E (author)
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- Wahlen, S (author)
- Karolinska Institutet
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Kiekens, L (author)
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Taveirne, S (author)
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Van Loocke, W (author)
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Van Ammel, E (author)
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Van Nieuwerburgh, F (author)
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Taghon, T (author)
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Vandekerckhove, B (author)
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Van Vlierberghe, P (author)
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Leclercq, G (author)
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(creator_code:org_t)
- 2022-09-26
- 2022
- English.
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In: International journal of molecular sciences. - : MDPI AG. - 1422-0067. ; 23:19
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Abstract
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- The ability of natural killer (NK) cells to kill tumor cells without prior sensitization makes them a rising player in immunotherapy. Increased understanding of the development and functioning of NK cells will improve their clinical utilization. As opposed to murine NK cell development, human NK cell development is still less understood. Here, we studied the role of thioredoxin-interacting protein (TXNIP) in human NK cell differentiation by stable TXNIP knockdown or overexpression in cord blood hematopoietic stem cells, followed by in vitro NK cell differentiation. TXNIP overexpression only had marginal effects, indicating that endogenous TXNIP levels are sufficient in this process. TXNIP knockdown, however, reduced proliferation of early differentiation stages and greatly decreased NK cell numbers. Transcriptome analysis and experimental confirmation showed that reduced protein synthesis upon TXNIP knockdown likely caused this low proliferation. Contrary to its profound effects on the early differentiation stages, TXNIP knockdown led to limited alterations in NK cell phenotype, and it had no effect on NK cell cytotoxicity or cytokine production. Thus, TXNIP promotes human NK cell differentiation by affecting protein synthesis and proliferation of early NK cell differentiation stages, but it is redundant for functional NK cell maturation.
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- By the author/editor
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Persyn, E
-
Wahlen, S
-
Kiekens, L
-
Taveirne, S
-
Van Loocke, W
-
Van Ammel, E
-
show more...
-
Van Nieuwerburgh ...
-
Taghon, T
-
Vandekerckhove, ...
-
Van Vlierberghe, ...
-
Leclercq, G
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show less...
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Karolinska Institutet